add travis ci, appveyor, coveralls

1 files changed, 8825 insertions, 7296 deletions

diff --git a/catch.hpp b/catch.hpp
index 46d065f..362f869 100644
--- a/catch.hpp
+++ b/catch.hpp
@@ -1,17 +1,17 @@
 /*
- *  Catch v1.5.1
- *  Generated: 2016-04-28 08:12:37.387488
+ *  Catch v2.0.1
+ *  Generated: 2017-11-03 11:53:39.642003
  *  ----------------------------------------------------------
  *  This file has been merged from multiple headers. Please don't edit it directly
- *  Copyright (c) 2012 Two Blue Cubes Ltd. All rights reserved.
+ *  Copyright (c) 2017 Two Blue Cubes Ltd. All rights reserved.
  *
  *  Distributed under the Boost Software License, Version 1.0. (See accompanying
  *  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  */
 #ifndef TWOBLUECUBES_SINGLE_INCLUDE_CATCH_HPP_INCLUDED
 #define TWOBLUECUBES_SINGLE_INCLUDE_CATCH_HPP_INCLUDED
+// start catch.hpp
 
-#define TWOBLUECUBES_CATCH_HPP_INCLUDED
 
 #ifdef __clang__
 #    pragma clang system_header
@@ -19,7 +19,7 @@
 #    pragma GCC system_header
 #endif
 
-// #included from: internal/catch_suppress_warnings.h
+// start catch_suppress_warnings.h
 
 #ifdef __clang__
 #   ifdef __ICC // icpc defines the __clang__ macro
@@ -32,21 +32,44 @@
 #       pragma clang diagnostic ignored "-Wunused-variable"
 #       pragma clang diagnostic push
 #       pragma clang diagnostic ignored "-Wpadded"
-#       pragma clang diagnostic ignored "-Wc++98-compat"
-#       pragma clang diagnostic ignored "-Wc++98-compat-pedantic"
 #       pragma clang diagnostic ignored "-Wswitch-enum"
 #       pragma clang diagnostic ignored "-Wcovered-switch-default"
 #    endif
 #elif defined __GNUC__
 #    pragma GCC diagnostic ignored "-Wvariadic-macros"
 #    pragma GCC diagnostic ignored "-Wunused-variable"
+#    pragma GCC diagnostic ignored "-Wparentheses"
+
 #    pragma GCC diagnostic push
 #    pragma GCC diagnostic ignored "-Wpadded"
 #endif
+// end catch_suppress_warnings.h
 #if defined(CATCH_CONFIG_MAIN) || defined(CATCH_CONFIG_RUNNER)
 #  define CATCH_IMPL
+#  define CATCH_CONFIG_EXTERNAL_INTERFACES
+#  if defined(CATCH_CONFIG_DISABLE_MATCHERS)
+#    undef CATCH_CONFIG_DISABLE_MATCHERS
+#  endif
 #endif
 
+// start catch_platform.h
+
+#ifdef __APPLE__
+# include <TargetConditionals.h>
+# if TARGET_OS_MAC == 1
+#  define CATCH_PLATFORM_MAC
+# elif TARGET_OS_IPHONE == 1
+#  define CATCH_PLATFORM_IPHONE
+# endif
+
+#elif defined(linux) || defined(__linux) || defined(__linux__)
+#  define CATCH_PLATFORM_LINUX
+
+#elif defined(WIN32) || defined(__WIN32__) || defined(_WIN32) || defined(_MSC_VER)
+#  define CATCH_PLATFORM_WINDOWS
+#endif
+
+// end catch_platform.h
 #ifdef CATCH_IMPL
 #  ifndef CLARA_CONFIG_MAIN
 #    define CLARA_CONFIG_MAIN_NOT_DEFINED
@@ -54,365 +77,185 @@
 #  endif
 #endif
 
-// #included from: internal/catch_notimplemented_exception.h
-#define TWOBLUECUBES_CATCH_NOTIMPLEMENTED_EXCEPTION_H_INCLUDED
-
-// #included from: catch_common.h
-#define TWOBLUECUBES_CATCH_COMMON_H_INCLUDED
-
-#define INTERNAL_CATCH_UNIQUE_NAME_LINE2( name, line ) name##line
-#define INTERNAL_CATCH_UNIQUE_NAME_LINE( name, line ) INTERNAL_CATCH_UNIQUE_NAME_LINE2( name, line )
-#ifdef CATCH_CONFIG_COUNTER
-#  define INTERNAL_CATCH_UNIQUE_NAME( name ) INTERNAL_CATCH_UNIQUE_NAME_LINE( name, __COUNTER__ )
-#else
-#  define INTERNAL_CATCH_UNIQUE_NAME( name ) INTERNAL_CATCH_UNIQUE_NAME_LINE( name, __LINE__ )
-#endif
-
-#define INTERNAL_CATCH_STRINGIFY2( expr ) #expr
-#define INTERNAL_CATCH_STRINGIFY( expr ) INTERNAL_CATCH_STRINGIFY2( expr )
+// start catch_tag_alias_autoregistrar.h
 
-#include <sstream>
-#include <stdexcept>
-#include <algorithm>
+// start catch_common.h
 
-// #included from: catch_compiler_capabilities.h
-#define TWOBLUECUBES_CATCH_COMPILER_CAPABILITIES_HPP_INCLUDED
+// start catch_compiler_capabilities.h
 
-// Detect a number of compiler features - mostly C++11/14 conformance - by compiler
+// Detect a number of compiler features - by compiler
 // The following features are defined:
 //
-// CATCH_CONFIG_CPP11_NULLPTR : is nullptr supported?
-// CATCH_CONFIG_CPP11_NOEXCEPT : is noexcept supported?
-// CATCH_CONFIG_CPP11_GENERATED_METHODS : The delete and default keywords for compiler generated methods
-// CATCH_CONFIG_CPP11_IS_ENUM : std::is_enum is supported?
-// CATCH_CONFIG_CPP11_TUPLE : std::tuple is supported
-// CATCH_CONFIG_CPP11_LONG_LONG : is long long supported?
-// CATCH_CONFIG_CPP11_OVERRIDE : is override supported?
-// CATCH_CONFIG_CPP11_UNIQUE_PTR : is unique_ptr supported (otherwise use auto_ptr)
-
-// CATCH_CONFIG_CPP11_OR_GREATER : Is C++11 supported?
-
-// CATCH_CONFIG_VARIADIC_MACROS : are variadic macros supported?
 // CATCH_CONFIG_COUNTER : is the __COUNTER__ macro supported?
+// CATCH_CONFIG_WINDOWS_SEH : is Windows SEH supported?
+// CATCH_CONFIG_POSIX_SIGNALS : are POSIX signals supported?
 // ****************
 // Note to maintainers: if new toggles are added please document them
 // in configuration.md, too
 // ****************
 
 // In general each macro has a _NO_<feature name> form
-// (e.g. CATCH_CONFIG_CPP11_NO_NULLPTR) which disables the feature.
+// (e.g. CATCH_CONFIG_NO_POSIX_SIGNALS) which disables the feature.
 // Many features, at point of detection, define an _INTERNAL_ macro, so they
 // can be combined, en-mass, with the _NO_ forms later.
 
-// All the C++11 features can be disabled with CATCH_CONFIG_NO_CPP11
+#ifdef __cplusplus
+
+#  if __cplusplus >= 201402L
+#    define CATCH_CPP14_OR_GREATER
+#  endif
 
-#if defined(__cplusplus) && __cplusplus >= 201103L
-#  define CATCH_CPP11_OR_GREATER
 #endif
 
 #ifdef __clang__
 
-#  if __has_feature(cxx_nullptr)
-#    define CATCH_INTERNAL_CONFIG_CPP11_NULLPTR
-#  endif
+#       define CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
+            _Pragma( "clang diagnostic push" ) \
+            _Pragma( "clang diagnostic ignored \"-Wexit-time-destructors\"" ) \
+            _Pragma( "clang diagnostic ignored \"-Wglobal-constructors\"")
+#       define CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS \
+            _Pragma( "clang diagnostic pop" )
 
-#  if __has_feature(cxx_noexcept)
-#    define CATCH_INTERNAL_CONFIG_CPP11_NOEXCEPT
-#  endif
-
-#   if defined(CATCH_CPP11_OR_GREATER)
-#       define CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS _Pragma( "clang diagnostic ignored \"-Wparentheses\"" )
-#   endif
+#       define CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS \
+            _Pragma( "clang diagnostic push" ) \
+            _Pragma( "clang diagnostic ignored \"-Wparentheses\"" )
+#       define CATCH_INTERNAL_UNSUPPRESS_PARENTHESES_WARNINGS \
+            _Pragma( "clang diagnostic pop" )
 
 #endif // __clang__
 
 ////////////////////////////////////////////////////////////////////////////////
-// Borland
-#ifdef __BORLANDC__
+// We know some environments not to support full POSIX signals
+#if defined(__CYGWIN__) || defined(__QNX__)
 
-#endif // __BORLANDC__
-
-////////////////////////////////////////////////////////////////////////////////
-// EDG
-#ifdef __EDG_VERSION__
-
-#endif // __EDG_VERSION__
+#   if !defined(CATCH_CONFIG_POSIX_SIGNALS)
+#       define CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS
+#   endif
 
-////////////////////////////////////////////////////////////////////////////////
-// Digital Mars
-#ifdef __DMC__
+#endif
 
-#endif // __DMC__
+#ifdef __OS400__
+#       define CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS
+#       define CATCH_CONFIG_COLOUR_NONE
+#endif
 
 ////////////////////////////////////////////////////////////////////////////////
-// GCC
-#ifdef __GNUC__
-
-#   if __GNUC__ == 4 && __GNUC_MINOR__ >= 6 && defined(__GXX_EXPERIMENTAL_CXX0X__)
-#       define CATCH_INTERNAL_CONFIG_CPP11_NULLPTR
-#   endif
-
-#   if !defined(CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS) && defined(CATCH_CPP11_OR_GREATER)
-#       define CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS _Pragma( "GCC diagnostic ignored \"-Wparentheses\"" )
-#   endif
+// Cygwin
+#ifdef __CYGWIN__
 
-// - otherwise more recent versions define __cplusplus >= 201103L
-// and will get picked up below
+// Required for some versions of Cygwin to declare gettimeofday
+// see: http://stackoverflow.com/questions/36901803/gettimeofday-not-declared-in-this-scope-cygwin
+#   define _BSD_SOURCE
 
-#endif // __GNUC__
+#endif // __CYGWIN__
 
 ////////////////////////////////////////////////////////////////////////////////
 // Visual C++
 #ifdef _MSC_VER
 
-#if (_MSC_VER >= 1600)
-#   define CATCH_INTERNAL_CONFIG_CPP11_NULLPTR
-#   define CATCH_INTERNAL_CONFIG_CPP11_UNIQUE_PTR
-#endif
-
-#if (_MSC_VER >= 1900 ) // (VC++ 13 (VS2015))
-#define CATCH_INTERNAL_CONFIG_CPP11_NOEXCEPT
-#define CATCH_INTERNAL_CONFIG_CPP11_GENERATED_METHODS
-#endif
+// Universal Windows platform does not support SEH
+// Or console colours (or console at all...)
+#  if defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_APP)
+#    define CATCH_CONFIG_COLOUR_NONE
+#  else
+#    define CATCH_INTERNAL_CONFIG_WINDOWS_SEH
+#  endif
 
 #endif // _MSC_VER
 
 ////////////////////////////////////////////////////////////////////////////////
 
-// Use variadic macros if the compiler supports them
-#if ( defined _MSC_VER && _MSC_VER > 1400 && !defined __EDGE__) || \
-    ( defined __WAVE__ && __WAVE_HAS_VARIADICS ) || \
-    ( defined __GNUC__ && __GNUC__ >= 3 ) || \
-    ( !defined __cplusplus && __STDC_VERSION__ >= 199901L || __cplusplus >= 201103L )
-
-#define CATCH_INTERNAL_CONFIG_VARIADIC_MACROS
-
-#endif
-
-// Use __COUNTER__ if the compiler supports it
-#if ( defined _MSC_VER && _MSC_VER >= 1300 ) || \
-    ( defined __GNUC__  && __GNUC__ >= 4 && __GNUC_MINOR__ >= 3 ) || \
-    ( defined __clang__ && __clang_major__ >= 3 )
-
-#define CATCH_INTERNAL_CONFIG_COUNTER
-
+// Use of __COUNTER__ is suppressed during code analysis in
+// CLion/AppCode 2017.2.x and former, because __COUNTER__ is not properly
+// handled by it.
+// Otherwise all supported compilers support COUNTER macro,
+// but user still might want to turn it off
+#if ( !defined(__JETBRAINS_IDE__) || __JETBRAINS_IDE__ >= 20170300L )
+    #define CATCH_INTERNAL_CONFIG_COUNTER
 #endif
 
-////////////////////////////////////////////////////////////////////////////////
-// C++ language feature support
-
-// catch all support for C++11
-#if defined(CATCH_CPP11_OR_GREATER)
-
-#  if !defined(CATCH_INTERNAL_CONFIG_CPP11_NULLPTR)
-#    define CATCH_INTERNAL_CONFIG_CPP11_NULLPTR
-#  endif
-
-#  ifndef CATCH_INTERNAL_CONFIG_CPP11_NOEXCEPT
-#    define CATCH_INTERNAL_CONFIG_CPP11_NOEXCEPT
-#  endif
-
-#  ifndef CATCH_INTERNAL_CONFIG_CPP11_GENERATED_METHODS
-#    define CATCH_INTERNAL_CONFIG_CPP11_GENERATED_METHODS
-#  endif
-
-#  ifndef CATCH_INTERNAL_CONFIG_CPP11_IS_ENUM
-#    define CATCH_INTERNAL_CONFIG_CPP11_IS_ENUM
-#  endif
-
-#  ifndef CATCH_INTERNAL_CONFIG_CPP11_TUPLE
-#    define CATCH_INTERNAL_CONFIG_CPP11_TUPLE
-#  endif
-
-#  ifndef CATCH_INTERNAL_CONFIG_VARIADIC_MACROS
-#    define CATCH_INTERNAL_CONFIG_VARIADIC_MACROS
-#  endif
-
-#  if !defined(CATCH_INTERNAL_CONFIG_CPP11_LONG_LONG)
-#    define CATCH_INTERNAL_CONFIG_CPP11_LONG_LONG
-#  endif
-
-#  if !defined(CATCH_INTERNAL_CONFIG_CPP11_OVERRIDE)
-#    define CATCH_INTERNAL_CONFIG_CPP11_OVERRIDE
-#  endif
-#  if !defined(CATCH_INTERNAL_CONFIG_CPP11_UNIQUE_PTR)
-#    define CATCH_INTERNAL_CONFIG_CPP11_UNIQUE_PTR
-#  endif
-
-#endif // __cplusplus >= 201103L
-
-// Now set the actual defines based on the above + anything the user has configured
-#if defined(CATCH_INTERNAL_CONFIG_CPP11_NULLPTR) && !defined(CATCH_CONFIG_CPP11_NO_NULLPTR) && !defined(CATCH_CONFIG_CPP11_NULLPTR) && !defined(CATCH_CONFIG_NO_CPP11)
-#   define CATCH_CONFIG_CPP11_NULLPTR
-#endif
-#if defined(CATCH_INTERNAL_CONFIG_CPP11_NOEXCEPT) && !defined(CATCH_CONFIG_CPP11_NO_NOEXCEPT) && !defined(CATCH_CONFIG_CPP11_NOEXCEPT) && !defined(CATCH_CONFIG_NO_CPP11)
-#   define CATCH_CONFIG_CPP11_NOEXCEPT
-#endif
-#if defined(CATCH_INTERNAL_CONFIG_CPP11_GENERATED_METHODS) && !defined(CATCH_CONFIG_CPP11_NO_GENERATED_METHODS) && !defined(CATCH_CONFIG_CPP11_GENERATED_METHODS) && !defined(CATCH_CONFIG_NO_CPP11)
-#   define CATCH_CONFIG_CPP11_GENERATED_METHODS
-#endif
-#if defined(CATCH_INTERNAL_CONFIG_CPP11_IS_ENUM) && !defined(CATCH_CONFIG_CPP11_NO_IS_ENUM) && !defined(CATCH_CONFIG_CPP11_IS_ENUM) && !defined(CATCH_CONFIG_NO_CPP11)
-#   define CATCH_CONFIG_CPP11_IS_ENUM
-#endif
-#if defined(CATCH_INTERNAL_CONFIG_CPP11_TUPLE) && !defined(CATCH_CONFIG_CPP11_NO_TUPLE) && !defined(CATCH_CONFIG_CPP11_TUPLE) && !defined(CATCH_CONFIG_NO_CPP11)
-#   define CATCH_CONFIG_CPP11_TUPLE
-#endif
-#if defined(CATCH_INTERNAL_CONFIG_VARIADIC_MACROS) && !defined(CATCH_CONFIG_NO_VARIADIC_MACROS) && !defined(CATCH_CONFIG_VARIADIC_MACROS)
-#   define CATCH_CONFIG_VARIADIC_MACROS
-#endif
-#if defined(CATCH_INTERNAL_CONFIG_CPP11_LONG_LONG) && !defined(CATCH_CONFIG_NO_LONG_LONG) && !defined(CATCH_CONFIG_CPP11_LONG_LONG) && !defined(CATCH_CONFIG_NO_CPP11)
-#   define CATCH_CONFIG_CPP11_LONG_LONG
-#endif
-#if defined(CATCH_INTERNAL_CONFIG_CPP11_OVERRIDE) && !defined(CATCH_CONFIG_NO_OVERRIDE) && !defined(CATCH_CONFIG_CPP11_OVERRIDE) && !defined(CATCH_CONFIG_NO_CPP11)
-#   define CATCH_CONFIG_CPP11_OVERRIDE
-#endif
-#if defined(CATCH_INTERNAL_CONFIG_CPP11_UNIQUE_PTR) && !defined(CATCH_CONFIG_NO_UNIQUE_PTR) && !defined(CATCH_CONFIG_CPP11_UNIQUE_PTR) && !defined(CATCH_CONFIG_NO_CPP11)
-#   define CATCH_CONFIG_CPP11_UNIQUE_PTR
-#endif
 #if defined(CATCH_INTERNAL_CONFIG_COUNTER) && !defined(CATCH_CONFIG_NO_COUNTER) && !defined(CATCH_CONFIG_COUNTER)
 #   define CATCH_CONFIG_COUNTER
 #endif
+#if defined(CATCH_INTERNAL_CONFIG_WINDOWS_SEH) && !defined(CATCH_CONFIG_NO_WINDOWS_SEH) && !defined(CATCH_CONFIG_WINDOWS_SEH)
+#   define CATCH_CONFIG_WINDOWS_SEH
+#endif
+// This is set by default, because we assume that unix compilers are posix-signal-compatible by default.
+#if !defined(CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS) && !defined(CATCH_CONFIG_NO_POSIX_SIGNALS) && !defined(CATCH_CONFIG_POSIX_SIGNALS)
+#   define CATCH_CONFIG_POSIX_SIGNALS
+#endif
 
 #if !defined(CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS)
 #   define CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS
+#   define CATCH_INTERNAL_UNSUPPRESS_PARENTHESES_WARNINGS
 #endif
-
-// noexcept support:
-#if defined(CATCH_CONFIG_CPP11_NOEXCEPT) && !defined(CATCH_NOEXCEPT)
-#  define CATCH_NOEXCEPT noexcept
-#  define CATCH_NOEXCEPT_IS(x) noexcept(x)
-#else
-#  define CATCH_NOEXCEPT throw()
-#  define CATCH_NOEXCEPT_IS(x)
+#if !defined(CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS)
+#   define CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS
+#   define CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS
 #endif
 
-// nullptr support
-#ifdef CATCH_CONFIG_CPP11_NULLPTR
-#   define CATCH_NULL nullptr
-#else
-#   define CATCH_NULL NULL
-#endif
-
-// override support
-#ifdef CATCH_CONFIG_CPP11_OVERRIDE
-#   define CATCH_OVERRIDE override
+// end catch_compiler_capabilities.h
+#define INTERNAL_CATCH_UNIQUE_NAME_LINE2( name, line ) name##line
+#define INTERNAL_CATCH_UNIQUE_NAME_LINE( name, line ) INTERNAL_CATCH_UNIQUE_NAME_LINE2( name, line )
+#ifdef CATCH_CONFIG_COUNTER
+#  define INTERNAL_CATCH_UNIQUE_NAME( name ) INTERNAL_CATCH_UNIQUE_NAME_LINE( name, __COUNTER__ )
 #else
-#   define CATCH_OVERRIDE
+#  define INTERNAL_CATCH_UNIQUE_NAME( name ) INTERNAL_CATCH_UNIQUE_NAME_LINE( name, __LINE__ )
 #endif
 
-// unique_ptr support
-#ifdef CATCH_CONFIG_CPP11_UNIQUE_PTR
-#   define CATCH_AUTO_PTR( T ) std::unique_ptr<T>
-#else
-#   define CATCH_AUTO_PTR( T ) std::auto_ptr<T>
-#endif
+#include <iosfwd>
+#include <string>
+#include <cstdint>
 
 namespace Catch {
 
-    struct IConfig;
-
     struct CaseSensitive { enum Choice {
         Yes,
         No
     }; };
 
     class NonCopyable {
-#ifdef CATCH_CONFIG_CPP11_GENERATED_METHODS
         NonCopyable( NonCopyable const& )              = delete;
         NonCopyable( NonCopyable && )                  = delete;
         NonCopyable& operator = ( NonCopyable const& ) = delete;
         NonCopyable& operator = ( NonCopyable && )     = delete;
-#else
-        NonCopyable( NonCopyable const& info );
-        NonCopyable& operator = ( NonCopyable const& );
-#endif
 
     protected:
-        NonCopyable() {}
+        NonCopyable();
         virtual ~NonCopyable();
     };
 
-    class SafeBool {
-    public:
-        typedef void (SafeBool::*type)() const;
-
-        static type makeSafe( bool value ) {
-            return value ? &SafeBool::trueValue : 0;
-        }
-    private:
-        void trueValue() const {}
-    };
-
-    template<typename ContainerT>
-    inline void deleteAll( ContainerT& container ) {
-        typename ContainerT::const_iterator it = container.begin();
-        typename ContainerT::const_iterator itEnd = container.end();
-        for(; it != itEnd; ++it )
-            delete *it;
-    }
-    template<typename AssociativeContainerT>
-    inline void deleteAllValues( AssociativeContainerT& container ) {
-        typename AssociativeContainerT::const_iterator it = container.begin();
-        typename AssociativeContainerT::const_iterator itEnd = container.end();
-        for(; it != itEnd; ++it )
-            delete it->second;
-    }
-
-    bool startsWith( std::string const& s, std::string const& prefix );
-    bool endsWith( std::string const& s, std::string const& suffix );
-    bool contains( std::string const& s, std::string const& infix );
-    void toLowerInPlace( std::string& s );
-    std::string toLower( std::string const& s );
-    std::string trim( std::string const& str );
-    bool replaceInPlace( std::string& str, std::string const& replaceThis, std::string const& withThis );
-
-    struct pluralise {
-        pluralise( std::size_t count, std::string const& label );
-
-        friend std::ostream& operator << ( std::ostream& os, pluralise const& pluraliser );
-
-        std::size_t m_count;
-        std::string m_label;
-    };
-
     struct SourceLineInfo {
 
-        SourceLineInfo();
-        SourceLineInfo( char const* _file, std::size_t _line );
-        SourceLineInfo( SourceLineInfo const& other );
-#  ifdef CATCH_CONFIG_CPP11_GENERATED_METHODS
+        SourceLineInfo() = delete;
+        SourceLineInfo( char const* _file, std::size_t _line ) noexcept;
+
+        SourceLineInfo( SourceLineInfo const& other )        = default;
         SourceLineInfo( SourceLineInfo && )                  = default;
         SourceLineInfo& operator = ( SourceLineInfo const& ) = default;
         SourceLineInfo& operator = ( SourceLineInfo && )     = default;
-#  endif
-        bool empty() const;
-        bool operator == ( SourceLineInfo const& other ) const;
-        bool operator < ( SourceLineInfo const& other ) const;
 
-        std::string file;
+        bool empty() const noexcept;
+        bool operator == ( SourceLineInfo const& other ) const noexcept;
+        bool operator < ( SourceLineInfo const& other ) const noexcept;
+
+        char const* file;
         std::size_t line;
     };
 
     std::ostream& operator << ( std::ostream& os, SourceLineInfo const& info );
 
     // This is just here to avoid compiler warnings with macro constants and boolean literals
-    inline bool isTrue( bool value ){ return value; }
-    inline bool alwaysTrue() { return true; }
-    inline bool alwaysFalse() { return false; }
-
-    void throwLogicError( std::string const& message, SourceLineInfo const& locationInfo );
-
-    void seedRng( IConfig const& config );
-    unsigned int rngSeed();
+    bool isTrue( bool value );
+    bool alwaysTrue();
+    bool alwaysFalse();
 
     // Use this in variadic streaming macros to allow
     //    >> +StreamEndStop
     // as well as
     //    >> stuff +StreamEndStop
     struct StreamEndStop {
-        std::string operator+() {
-            return std::string();
-        }
+        std::string operator+() const;
     };
     template<typename T>
     T const& operator + ( T const& value, StreamEndStop ) {
@@ -420,1480 +263,998 @@ namespace Catch {
     }
 }
 
-#define CATCH_INTERNAL_LINEINFO ::Catch::SourceLineInfo( __FILE__, static_cast<std::size_t>( __LINE__ ) )
-#define CATCH_INTERNAL_ERROR( msg ) ::Catch::throwLogicError( msg, CATCH_INTERNAL_LINEINFO );
-
-#include <ostream>
+#define CATCH_INTERNAL_LINEINFO \
+    ::Catch::SourceLineInfo( __FILE__, static_cast<std::size_t>( __LINE__ ) )
 
+// end catch_common.h
 namespace Catch {
 
-    class NotImplementedException : public std::exception
-    {
-    public:
-        NotImplementedException( SourceLineInfo const& lineInfo );
-        NotImplementedException( NotImplementedException const& ) {}
-
-        virtual ~NotImplementedException() CATCH_NOEXCEPT {}
-
-        virtual const char* what() const CATCH_NOEXCEPT;
-
-    private:
-        std::string m_what;
-        SourceLineInfo m_lineInfo;
+    struct RegistrarForTagAliases {
+        RegistrarForTagAliases( char const* alias, char const* tag, SourceLineInfo const& lineInfo );
     };
 
 } // end namespace Catch
 
-///////////////////////////////////////////////////////////////////////////////
-#define CATCH_NOT_IMPLEMENTED throw Catch::NotImplementedException( CATCH_INTERNAL_LINEINFO )
+#define CATCH_REGISTER_TAG_ALIAS( alias, spec ) namespace{ Catch::RegistrarForTagAliases INTERNAL_CATCH_UNIQUE_NAME( AutoRegisterTagAlias )( alias, spec, CATCH_INTERNAL_LINEINFO ); }
 
-// #included from: internal/catch_context.h
-#define TWOBLUECUBES_CATCH_CONTEXT_H_INCLUDED
+// end catch_tag_alias_autoregistrar.h
+// start catch_test_registry.h
 
-// #included from: catch_interfaces_generators.h
-#define TWOBLUECUBES_CATCH_INTERFACES_GENERATORS_H_INCLUDED
+// start catch_interfaces_testcase.h
 
-#include <string>
+#include <vector>
+#include <memory>
 
 namespace Catch {
 
-    struct IGeneratorInfo {
-        virtual ~IGeneratorInfo();
-        virtual bool moveNext() = 0;
-        virtual std::size_t getCurrentIndex() const = 0;
-    };
-
-    struct IGeneratorsForTest {
-        virtual ~IGeneratorsForTest();
+    class TestSpec;
 
-        virtual IGeneratorInfo& getGeneratorInfo( std::string const& fileInfo, std::size_t size ) = 0;
-        virtual bool moveNext() = 0;
+    struct ITestInvoker {
+        virtual void invoke () const = 0;
+        virtual ~ITestInvoker();
     };
 
-    IGeneratorsForTest* createGeneratorsForTest();
+    using ITestCasePtr = std::shared_ptr<ITestInvoker>;
 
-} // end namespace Catch
-
-// #included from: catch_ptr.hpp
-#define TWOBLUECUBES_CATCH_PTR_HPP_INCLUDED
-
-#ifdef __clang__
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wpadded"
-#endif
-
-namespace Catch {
-
-    // An intrusive reference counting smart pointer.
-    // T must implement addRef() and release() methods
-    // typically implementing the IShared interface
-    template<typename T>
-    class Ptr {
-    public:
-        Ptr() : m_p( CATCH_NULL ){}
-        Ptr( T* p ) : m_p( p ){
-            if( m_p )
-                m_p->addRef();
-        }
-        Ptr( Ptr const& other ) : m_p( other.m_p ){
-            if( m_p )
-                m_p->addRef();
-        }
-        ~Ptr(){
-            if( m_p )
-                m_p->release();
-        }
-        void reset() {
-            if( m_p )
-                m_p->release();
-            m_p = CATCH_NULL;
-        }
-        Ptr& operator = ( T* p ){
-            Ptr temp( p );
-            swap( temp );
-            return *this;
-        }
-        Ptr& operator = ( Ptr const& other ){
-            Ptr temp( other );
-            swap( temp );
-            return *this;
-        }
-        void swap( Ptr& other ) { std::swap( m_p, other.m_p ); }
-        T* get() const{ return m_p; }
-        T& operator*() const { return *m_p; }
-        T* operator->() const { return m_p; }
-        bool operator !() const { return m_p == CATCH_NULL; }
-        operator SafeBool::type() const { return SafeBool::makeSafe( m_p != CATCH_NULL ); }
-
-    private:
-        T* m_p;
-    };
+    class TestCase;
+    struct IConfig;
 
-    struct IShared : NonCopyable {
-        virtual ~IShared();
-        virtual void addRef() const = 0;
-        virtual void release() const = 0;
+    struct ITestCaseRegistry {
+        virtual ~ITestCaseRegistry();
+        virtual std::vector<TestCase> const& getAllTests() const = 0;
+        virtual std::vector<TestCase> const& getAllTestsSorted( IConfig const& config ) const = 0;
     };
 
-    template<typename T = IShared>
-    struct SharedImpl : T {
-
-        SharedImpl() : m_rc( 0 ){}
-
-        virtual void addRef() const {
-            ++m_rc;
-        }
-        virtual void release() const {
-            if( --m_rc == 0 )
-                delete this;
-        }
-
-        mutable unsigned int m_rc;
-    };
+    bool matchTest( TestCase const& testCase, TestSpec const& testSpec, IConfig const& config );
+    std::vector<TestCase> filterTests( std::vector<TestCase> const& testCases, TestSpec const& testSpec, IConfig const& config );
+    std::vector<TestCase> const& getAllTestCasesSorted( IConfig const& config );
 
-} // end namespace Catch
+}
 
-#ifdef __clang__
-#pragma clang diagnostic pop
-#endif
+// end catch_interfaces_testcase.h
+// start catch_stringref.h
 
-#include <memory>
-#include <vector>
-#include <stdlib.h>
+#include <cstddef>
+#include <string>
+#include <iosfwd>
 
 namespace Catch {
 
-    class TestCase;
-    class Stream;
-    struct IResultCapture;
-    struct IRunner;
-    struct IGeneratorsForTest;
-    struct IConfig;
+    class StringData;
 
-    struct IContext
-    {
-        virtual ~IContext();
+    /// A non-owning string class (similar to the forthcoming std::string_view)
+    /// Note that, because a StringRef may be a substring of another string,
+    /// it may not be null terminated. c_str() must return a null terminated
+    /// string, however, and so the StringRef will internally take ownership
+    /// (taking a copy), if necessary. In theory this ownership is not externally
+    /// visible - but it does mean (substring) StringRefs should not be shared between
+    /// threads.
+    class StringRef {
+        friend struct StringRefTestAccess;
 
-        virtual IResultCapture* getResultCapture() = 0;
-        virtual IRunner* getRunner() = 0;
-        virtual size_t getGeneratorIndex( std::string const& fileInfo, size_t totalSize ) = 0;
-        virtual bool advanceGeneratorsForCurrentTest() = 0;
-        virtual Ptr<IConfig const> getConfig() const = 0;
-    };
+        using size_type = std::size_t;
 
-    struct IMutableContext : IContext
-    {
-        virtual ~IMutableContext();
-        virtual void setResultCapture( IResultCapture* resultCapture ) = 0;
-        virtual void setRunner( IRunner* runner ) = 0;
-        virtual void setConfig( Ptr<IConfig const> const& config ) = 0;
-    };
+        char const* m_start;
+        size_type m_size;
 
-    IContext& getCurrentContext();
-    IMutableContext& getCurrentMutableContext();
-    void cleanUpContext();
-    Stream createStream( std::string const& streamName );
+        char* m_data = nullptr;
 
-}
+        void takeOwnership();
 
-// #included from: internal/catch_test_registry.hpp
-#define TWOBLUECUBES_CATCH_TEST_REGISTRY_HPP_INCLUDED
+    public: // construction/ assignment
+        StringRef() noexcept;
+        StringRef( StringRef const& other ) noexcept;
+        StringRef( StringRef&& other ) noexcept;
+        StringRef( char const* rawChars ) noexcept;
+        StringRef( char const* rawChars, size_type size ) noexcept;
+        StringRef( std::string const& stdString ) noexcept;
+        ~StringRef() noexcept;
 
-// #included from: catch_interfaces_testcase.h
-#define TWOBLUECUBES_CATCH_INTERFACES_TESTCASE_H_INCLUDED
+        auto operator = ( StringRef other ) noexcept -> StringRef&;
+        operator std::string() const;
 
-#include <vector>
+        void swap( StringRef& other ) noexcept;
 
-namespace Catch {
+    public: // operators
+        auto operator == ( StringRef const& other ) const noexcept -> bool;
+        auto operator != ( StringRef const& other ) const noexcept -> bool;
 
-    class TestSpec;
+        auto operator[] ( size_type index ) const noexcept -> char;
 
-    struct ITestCase : IShared {
-        virtual void invoke () const = 0;
-    protected:
-        virtual ~ITestCase();
-    };
+    public: // named queries
+        auto empty() const noexcept -> bool;
+        auto size() const noexcept -> size_type;
+        auto numberOfCharacters() const noexcept -> size_type;
+        auto c_str() const -> char const*;
 
-    class TestCase;
-    struct IConfig;
+    public: // substrings and searches
+        auto substr( size_type start, size_type size ) const noexcept -> StringRef;
 
-    struct ITestCaseRegistry {
-        virtual ~ITestCaseRegistry();
-        virtual std::vector<TestCase> const& getAllTests() const = 0;
-        virtual std::vector<TestCase> const& getAllTestsSorted( IConfig const& config ) const = 0;
+    private: // ownership queries - may not be consistent between calls
+        auto isOwned() const noexcept -> bool;
+        auto isSubstring() const noexcept -> bool;
+        auto data() const noexcept -> char const*;
     };
 
-    bool matchTest( TestCase const& testCase, TestSpec const& testSpec, IConfig const& config );
-    std::vector<TestCase> filterTests( std::vector<TestCase> const& testCases, TestSpec const& testSpec, IConfig const& config );
-    std::vector<TestCase> const& getAllTestCasesSorted( IConfig const& config );
+    auto operator + ( StringRef const& lhs, StringRef const& rhs ) -> std::string;
+    auto operator + ( StringRef const& lhs, char const* rhs ) -> std::string;
+    auto operator + ( char const* lhs, StringRef const& rhs ) -> std::string;
 
-}
+    auto operator << ( std::ostream& os, StringRef const& sr ) -> std::ostream&;
 
+} // namespace Catch
+
+// end catch_stringref.h
 namespace Catch {
 
 template<typename C>
-class MethodTestCase : public SharedImpl<ITestCase> {
-
+class TestInvokerAsMethod : public ITestInvoker {
+    void (C::*m_testAsMethod)();
 public:
-    MethodTestCase( void (C::*method)() ) : m_method( method ) {}
+    TestInvokerAsMethod( void (C::*testAsMethod)() ) noexcept : m_testAsMethod( testAsMethod ) {}
 
-    virtual void invoke() const {
+    void invoke() const override {
         C obj;
-        (obj.*m_method)();
+        (obj.*m_testAsMethod)();
     }
-
-private:
-    virtual ~MethodTestCase() {}
-
-    void (C::*m_method)();
 };
 
-typedef void(*TestFunction)();
+auto makeTestInvoker( void(*testAsFunction)() ) noexcept -> ITestInvoker*;
 
-struct NameAndDesc {
-    NameAndDesc( const char* _name = "", const char* _description= "" )
-    : name( _name ), description( _description )
-    {}
+template<typename C>
+auto makeTestInvoker( void (C::*testAsMethod)() ) noexcept -> ITestInvoker* {
+    return new(std::nothrow) TestInvokerAsMethod<C>( testAsMethod );
+}
 
-    const char* name;
-    const char* description;
+struct NameAndTags {
+    NameAndTags( StringRef name_ = "", StringRef tags_ = "" ) noexcept;
+    StringRef name;
+    StringRef tags;
 };
 
-void registerTestCase
-    (   ITestCase* testCase,
-        char const* className,
-        NameAndDesc const& nameAndDesc,
-        SourceLineInfo const& lineInfo );
-
-struct AutoReg {
-
-    AutoReg
-        (   TestFunction function,
-            SourceLineInfo const& lineInfo,
-            NameAndDesc const& nameAndDesc );
-
-    template<typename C>
-    AutoReg
-        (   void (C::*method)(),
-            char const* className,
-            NameAndDesc const& nameAndDesc,
-            SourceLineInfo const& lineInfo ) {
-
-        registerTestCase
-            (   new MethodTestCase<C>( method ),
-                className,
-                nameAndDesc,
-                lineInfo );
-    }
-
+struct AutoReg : NonCopyable {
+    AutoReg( ITestInvoker* invoker, SourceLineInfo const& lineInfo, StringRef classOrMethod, NameAndTags const& nameAndTags ) noexcept;
     ~AutoReg();
-
-private:
-    AutoReg( AutoReg const& );
-    void operator= ( AutoReg const& );
 };
 
-void registerTestCaseFunction
-    (   TestFunction function,
-        SourceLineInfo const& lineInfo,
-        NameAndDesc const& nameAndDesc );
-
 } // end namespace Catch
 
-#ifdef CATCH_CONFIG_VARIADIC_MACROS
+#if defined(CATCH_CONFIG_DISABLE)
+    #define INTERNAL_CATCH_TESTCASE_NO_REGISTRATION( TestName, ... ) \
+        static void TestName()
+    #define INTERNAL_CATCH_TESTCASE_METHOD_NO_REGISTRATION( TestName, ClassName, ... ) \
+        namespace{                        \
+            struct TestName : ClassName { \
+                void test();              \
+            };                            \
+        }                                 \
+        void TestName::test()
+
+#endif
+
     ///////////////////////////////////////////////////////////////////////////////
     #define INTERNAL_CATCH_TESTCASE2( TestName, ... ) \
         static void TestName(); \
-        namespace{ Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar )( &TestName, CATCH_INTERNAL_LINEINFO, Catch::NameAndDesc( __VA_ARGS__ ) ); }\
+        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
+        namespace{ Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar )( Catch::makeTestInvoker( &TestName ), CATCH_INTERNAL_LINEINFO, "", Catch::NameAndTags{ __VA_ARGS__ } ); } /* NOLINT */ \
+        CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS \
         static void TestName()
     #define INTERNAL_CATCH_TESTCASE( ... ) \
         INTERNAL_CATCH_TESTCASE2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ), __VA_ARGS__ )
 
     ///////////////////////////////////////////////////////////////////////////////
     #define INTERNAL_CATCH_METHOD_AS_TEST_CASE( QualifiedMethod, ... ) \
-        namespace{ Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar )( &QualifiedMethod, "&" #QualifiedMethod, Catch::NameAndDesc( __VA_ARGS__ ), CATCH_INTERNAL_LINEINFO ); }
+        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
+        namespace{ Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar )( Catch::makeTestInvoker( &QualifiedMethod ), CATCH_INTERNAL_LINEINFO, "&" #QualifiedMethod, Catch::NameAndTags{ __VA_ARGS__ } ); } /* NOLINT */ \
+        CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS
 
     ///////////////////////////////////////////////////////////////////////////////
     #define INTERNAL_CATCH_TEST_CASE_METHOD2( TestName, ClassName, ... )\
+        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
         namespace{ \
             struct TestName : ClassName{ \
                 void test(); \
             }; \
-            Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar ) ( &TestName::test, #ClassName, Catch::NameAndDesc( __VA_ARGS__ ), CATCH_INTERNAL_LINEINFO ); \
+            Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar ) ( Catch::makeTestInvoker( &TestName::test ), CATCH_INTERNAL_LINEINFO, #ClassName, Catch::NameAndTags{ __VA_ARGS__ } ); /* NOLINT */ \
         } \
+        CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS \
         void TestName::test()
     #define INTERNAL_CATCH_TEST_CASE_METHOD( ClassName, ... ) \
         INTERNAL_CATCH_TEST_CASE_METHOD2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ), ClassName, __VA_ARGS__ )
 
     ///////////////////////////////////////////////////////////////////////////////
     #define INTERNAL_CATCH_REGISTER_TESTCASE( Function, ... ) \
-        Catch::AutoReg( Function, CATCH_INTERNAL_LINEINFO, Catch::NameAndDesc( __VA_ARGS__ ) );
+        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
+        Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar )( Catch::makeTestInvoker( Function ), CATCH_INTERNAL_LINEINFO, "", Catch::NameAndTags{ __VA_ARGS__ } ); /* NOLINT */ \
+        CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS
 
-#else
-    ///////////////////////////////////////////////////////////////////////////////
-    #define INTERNAL_CATCH_TESTCASE2( TestName, Name, Desc ) \
-        static void TestName(); \
-        namespace{ Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar )( &TestName, CATCH_INTERNAL_LINEINFO, Catch::NameAndDesc( Name, Desc ) ); }\
-        static void TestName()
-    #define INTERNAL_CATCH_TESTCASE( Name, Desc ) \
-        INTERNAL_CATCH_TESTCASE2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ), Name, Desc )
-
-    ///////////////////////////////////////////////////////////////////////////////
-    #define INTERNAL_CATCH_METHOD_AS_TEST_CASE( QualifiedMethod, Name, Desc ) \
-        namespace{ Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar )( &QualifiedMethod, "&" #QualifiedMethod, Catch::NameAndDesc( Name, Desc ), CATCH_INTERNAL_LINEINFO ); }
-
-    ///////////////////////////////////////////////////////////////////////////////
-    #define INTERNAL_CATCH_TEST_CASE_METHOD2( TestCaseName, ClassName, TestName, Desc )\
-        namespace{ \
-            struct TestCaseName : ClassName{ \
-                void test(); \
-            }; \
-            Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar ) ( &TestCaseName::test, #ClassName, Catch::NameAndDesc( TestName, Desc ), CATCH_INTERNAL_LINEINFO ); \
-        } \
-        void TestCaseName::test()
-    #define INTERNAL_CATCH_TEST_CASE_METHOD( ClassName, TestName, Desc )\
-        INTERNAL_CATCH_TEST_CASE_METHOD2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ), ClassName, TestName, Desc )
+// end catch_test_registry.h
+// start catch_capture.hpp
 
-    ///////////////////////////////////////////////////////////////////////////////
-    #define INTERNAL_CATCH_REGISTER_TESTCASE( Function, Name, Desc ) \
-        Catch::AutoReg( Function, CATCH_INTERNAL_LINEINFO, Catch::NameAndDesc( Name, Desc ) );
-#endif
+// start catch_assertionhandler.h
 
-// #included from: internal/catch_capture.hpp
-#define TWOBLUECUBES_CATCH_CAPTURE_HPP_INCLUDED
+// start catch_decomposer.h
 
-// #included from: catch_result_builder.h
-#define TWOBLUECUBES_CATCH_RESULT_BUILDER_H_INCLUDED
+// start catch_tostring.h
 
-// #included from: catch_result_type.h
-#define TWOBLUECUBES_CATCH_RESULT_TYPE_H_INCLUDED
+#include <sstream>
+#include <vector>
+#include <cstddef>
+#include <type_traits>
+#include <string>
 
-namespace Catch {
+#ifdef __OBJC__
+// start catch_objc_arc.hpp
 
-    // ResultWas::OfType enum
-    struct ResultWas { enum OfType {
-        Unknown = -1,
-        Ok = 0,
-        Info = 1,
-        Warning = 2,
+#import <Foundation/Foundation.h>
 
-        FailureBit = 0x10,
+#ifdef __has_feature
+#define CATCH_ARC_ENABLED __has_feature(objc_arc)
+#else
+#define CATCH_ARC_ENABLED 0
+#endif
 
-        ExpressionFailed = FailureBit | 1,
-        ExplicitFailure = FailureBit | 2,
+void arcSafeRelease( NSObject* obj );
+id performOptionalSelector( id obj, SEL sel );
 
-        Exception = 0x100 | FailureBit,
+#if !CATCH_ARC_ENABLED
+inline void arcSafeRelease( NSObject* obj ) {
+    [obj release];
+}
+inline id performOptionalSelector( id obj, SEL sel ) {
+    if( [obj respondsToSelector: sel] )
+        return [obj performSelector: sel];
+    return nil;
+}
+#define CATCH_UNSAFE_UNRETAINED
+#define CATCH_ARC_STRONG
+#else
+inline void arcSafeRelease( NSObject* ){}
+inline id performOptionalSelector( id obj, SEL sel ) {
+#ifdef __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
+#endif
+    if( [obj respondsToSelector: sel] )
+        return [obj performSelector: sel];
+#ifdef __clang__
+#pragma clang diagnostic pop
+#endif
+    return nil;
+}
+#define CATCH_UNSAFE_UNRETAINED __unsafe_unretained
+#define CATCH_ARC_STRONG __strong
+#endif
 
-        ThrewException = Exception | 1,
-        DidntThrowException = Exception | 2,
+// end catch_objc_arc.hpp
+#endif
 
-        FatalErrorCondition = 0x200 | FailureBit
+#ifdef _MSC_VER
+#pragma warning(push)
+#pragma warning(disable:4180) // We attempt to stream a function (address) by const&, which MSVC complains about but is harmless
+#endif
 
-    }; };
+// We need a dummy global operator<< so we can bring it into Catch namespace later
+struct Catch_global_namespace_dummy;
+std::ostream& operator<<(std::ostream&, Catch_global_namespace_dummy);
 
-    inline bool isOk( ResultWas::OfType resultType ) {
-        return ( resultType & ResultWas::FailureBit ) == 0;
-    }
-    inline bool isJustInfo( int flags ) {
-        return flags == ResultWas::Info;
-    }
+namespace Catch {
+    // Bring in operator<< from global namespace into Catch namespace
+    using ::operator<<;
 
-    // ResultDisposition::Flags enum
-    struct ResultDisposition { enum Flags {
-        Normal = 0x01,
+    namespace Detail {
 
-        ContinueOnFailure = 0x02,   // Failures fail test, but execution continues
-        FalseTest = 0x04,           // Prefix expression with !
-        SuppressFail = 0x08         // Failures are reported but do not fail the test
-    }; };
+        extern const std::string unprintableString;
 
-    inline ResultDisposition::Flags operator | ( ResultDisposition::Flags lhs, ResultDisposition::Flags rhs ) {
-        return static_cast<ResultDisposition::Flags>( static_cast<int>( lhs ) | static_cast<int>( rhs ) );
-    }
+        std::string rawMemoryToString( const void *object, std::size_t size );
 
-    inline bool shouldContinueOnFailure( int flags )    { return ( flags & ResultDisposition::ContinueOnFailure ) != 0; }
-    inline bool isFalseTest( int flags )                { return ( flags & ResultDisposition::FalseTest ) != 0; }
-    inline bool shouldSuppressFailure( int flags )      { return ( flags & ResultDisposition::SuppressFail ) != 0; }
+        template<typename T>
+        std::string rawMemoryToString( const T& object ) {
+          return rawMemoryToString( &object, sizeof(object) );
+        }
 
-} // end namespace Catch
+        template<typename T>
+        class IsStreamInsertable {
+            template<typename SS, typename TT>
+            static auto test(int)
+                -> decltype(std::declval<SS&>() << std::declval<TT>(), std::true_type());
 
-// #included from: catch_assertionresult.h
-#define TWOBLUECUBES_CATCH_ASSERTIONRESULT_H_INCLUDED
+            template<typename, typename>
+            static auto test(...)->std::false_type;
 
-#include <string>
+        public:
+            static const bool value = decltype(test<std::ostream, const T&>(0))::value;
+        };
 
-namespace Catch {
+    } // namespace Detail
 
-    struct AssertionInfo
-    {
-        AssertionInfo() {}
-        AssertionInfo(  std::string const& _macroName,
-                        SourceLineInfo const& _lineInfo,
-                        std::string const& _capturedExpression,
-                        ResultDisposition::Flags _resultDisposition );
+    // If we decide for C++14, change these to enable_if_ts
+    template <typename T>
+    struct StringMaker {
+        template <typename Fake = T>
+        static
+        typename std::enable_if<::Catch::Detail::IsStreamInsertable<Fake>::value, std::string>::type
+            convert(const Fake& t) {
+                std::ostringstream sstr;
+                sstr << t;
+                return sstr.str();
+        }
 
-        std::string macroName;
-        SourceLineInfo lineInfo;
-        std::string capturedExpression;
-        ResultDisposition::Flags resultDisposition;
+        template <typename Fake = T>
+        static
+        typename std::enable_if<!::Catch::Detail::IsStreamInsertable<Fake>::value, std::string>::type
+            convert(const Fake&) {
+                return Detail::unprintableString;
+        }
     };
 
-    struct AssertionResultData
-    {
-        AssertionResultData() : resultType( ResultWas::Unknown ) {}
+    namespace Detail {
 
-        std::string reconstructedExpression;
-        std::string message;
-        ResultWas::OfType resultType;
-    };
+        // This function dispatches all stringification requests inside of Catch.
+        // Should be preferably called fully qualified, like ::Catch::Detail::stringify
+        template <typename T>
+        std::string stringify(const T& e) {
+            return ::Catch::StringMaker<typename std::remove_cv<typename std::remove_reference<T>::type>::type>::convert(e);
+        }
 
-    class AssertionResult {
-    public:
-        AssertionResult();
-        AssertionResult( AssertionInfo const& info, AssertionResultData const& data );
-        ~AssertionResult();
-#  ifdef CATCH_CONFIG_CPP11_GENERATED_METHODS
-         AssertionResult( AssertionResult const& )              = default;
-         AssertionResult( AssertionResult && )                  = default;
-         AssertionResult& operator = ( AssertionResult const& ) = default;
-         AssertionResult& operator = ( AssertionResult && )     = default;
-#  endif
+    } // namespace Detail
 
-        bool isOk() const;
-        bool succeeded() const;
-        ResultWas::OfType getResultType() const;
-        bool hasExpression() const;
-        bool hasMessage() const;
-        std::string getExpression() const;
-        std::string getExpressionInMacro() const;
-        bool hasExpandedExpression() const;
-        std::string getExpandedExpression() const;
-        std::string getMessage() const;
-        SourceLineInfo getSourceInfo() const;
-        std::string getTestMacroName() const;
+    // Some predefined specializations
 
-    protected:
-        AssertionInfo m_info;
-        AssertionResultData m_resultData;
+    template<>
+    struct StringMaker<std::string> {
+        static std::string convert(const std::string& str);
     };
-
-} // end namespace Catch
-
-// #included from: catch_matchers.hpp
-#define TWOBLUECUBES_CATCH_MATCHERS_HPP_INCLUDED
-
-namespace Catch {
-namespace Matchers {
-    namespace Impl {
-
-    namespace Generic {
-        template<typename ExpressionT> class AllOf;
-        template<typename ExpressionT> class AnyOf;
-        template<typename ExpressionT> class Not;
-    }
-
-    template<typename ExpressionT>
-    struct Matcher : SharedImpl<IShared>
-    {
-        typedef ExpressionT ExpressionType;
-
-        virtual ~Matcher() {}
-        virtual Ptr<Matcher> clone() const = 0;
-        virtual bool match( ExpressionT const& expr ) const = 0;
-        virtual std::string toString() const = 0;
-
-        Generic::AllOf<ExpressionT> operator && ( Matcher<ExpressionT> const& other ) const;
-        Generic::AnyOf<ExpressionT> operator || ( Matcher<ExpressionT> const& other ) const;
-        Generic::Not<ExpressionT> operator ! () const;
+    template<>
+    struct StringMaker<std::wstring> {
+        static std::string convert(const std::wstring& wstr);
     };
 
-    template<typename DerivedT, typename ExpressionT>
-    struct MatcherImpl : Matcher<ExpressionT> {
+    template<>
+    struct StringMaker<char const *> {
+        static std::string convert(char const * str);
+    };
+    template<>
+    struct StringMaker<char *> {
+        static std::string convert(char * str);
+    };
+    template<>
+    struct StringMaker<wchar_t const *> {
+        static std::string convert(wchar_t const * str);
+    };
+    template<>
+    struct StringMaker<wchar_t *> {
+        static std::string convert(wchar_t * str);
+    };
 
-        virtual Ptr<Matcher<ExpressionT> > clone() const {
-            return Ptr<Matcher<ExpressionT> >( new DerivedT( static_cast<DerivedT const&>( *this ) ) );
+    template<int SZ>
+    struct StringMaker<char[SZ]> {
+        static std::string convert(const char* str) {
+            return ::Catch::Detail::stringify(std::string{ str });
+        }
+    };
+    template<int SZ>
+    struct StringMaker<signed char[SZ]> {
+        static std::string convert(const char* str) {
+            return ::Catch::Detail::stringify(std::string{ str });
+        }
+    };
+    template<int SZ>
+    struct StringMaker<unsigned char[SZ]> {
+        static std::string convert(const char* str) {
+            return ::Catch::Detail::stringify(std::string{ str });
         }
     };
 
-    namespace Generic {
-        template<typename ExpressionT>
-        class Not : public MatcherImpl<Not<ExpressionT>, ExpressionT> {
-        public:
-            explicit Not( Matcher<ExpressionT> const& matcher ) : m_matcher(matcher.clone()) {}
-            Not( Not const& other ) : m_matcher( other.m_matcher ) {}
-
-            virtual bool match( ExpressionT const& expr ) const CATCH_OVERRIDE {
-                return !m_matcher->match( expr );
-            }
+    template<>
+    struct StringMaker<int> {
+        static std::string convert(int value);
+    };
+    template<>
+    struct StringMaker<long> {
+        static std::string convert(long value);
+    };
+    template<>
+    struct StringMaker<long long> {
+        static std::string convert(long long value);
+    };
+    template<>
+    struct StringMaker<unsigned int> {
+        static std::string convert(unsigned int value);
+    };
+    template<>
+    struct StringMaker<unsigned long> {
+        static std::string convert(unsigned long value);
+    };
+    template<>
+    struct StringMaker<unsigned long long> {
+        static std::string convert(unsigned long long value);
+    };
 
-            virtual std::string toString() const CATCH_OVERRIDE {
-                return "not " + m_matcher->toString();
-            }
-        private:
-            Ptr< Matcher<ExpressionT> > m_matcher;
-        };
+    template<>
+    struct StringMaker<bool> {
+        static std::string convert(bool b);
+    };
 
-        template<typename ExpressionT>
-        class AllOf : public MatcherImpl<AllOf<ExpressionT>, ExpressionT> {
-        public:
+    template<>
+    struct StringMaker<char> {
+        static std::string convert(char c);
+    };
+    template<>
+    struct StringMaker<signed char> {
+        static std::string convert(signed char c);
+    };
+    template<>
+    struct StringMaker<unsigned char> {
+        static std::string convert(unsigned char c);
+    };
 
-            AllOf() {}
-            AllOf( AllOf const& other ) : m_matchers( other.m_matchers ) {}
+    template<>
+    struct StringMaker<std::nullptr_t> {
+        static std::string convert(std::nullptr_t);
+    };
 
-            AllOf& add( Matcher<ExpressionT> const& matcher ) {
-                m_matchers.push_back( matcher.clone() );
-                return *this;
-            }
-            virtual bool match( ExpressionT const& expr ) const
-            {
-                for( std::size_t i = 0; i < m_matchers.size(); ++i )
-                    if( !m_matchers[i]->match( expr ) )
-                        return false;
-                return true;
-            }
-            virtual std::string toString() const {
-                std::ostringstream oss;
-                oss << "( ";
-                for( std::size_t i = 0; i < m_matchers.size(); ++i ) {
-                    if( i != 0 )
-                        oss << " and ";
-                    oss << m_matchers[i]->toString();
-                }
-                oss << " )";
-                return oss.str();
-            }
+    template<>
+    struct StringMaker<float> {
+        static std::string convert(float value);
+    };
+    template<>
+    struct StringMaker<double> {
+        static std::string convert(double value);
+    };
 
-            AllOf operator && ( Matcher<ExpressionT> const& other ) const {
-                AllOf allOfExpr( *this );
-                allOfExpr.add( other );
-                return allOfExpr;
+    template <typename T>
+    struct StringMaker<T*> {
+        template <typename U>
+        static std::string convert(U* p) {
+            if (p) {
+                return ::Catch::Detail::rawMemoryToString(p);
+            } else {
+                return "nullptr";
             }
+        }
+    };
 
-        private:
-            std::vector<Ptr<Matcher<ExpressionT> > > m_matchers;
-        };
-
-        template<typename ExpressionT>
-        class AnyOf : public MatcherImpl<AnyOf<ExpressionT>, ExpressionT> {
-        public:
-
-            AnyOf() {}
-            AnyOf( AnyOf const& other ) : m_matchers( other.m_matchers ) {}
-
-            AnyOf& add( Matcher<ExpressionT> const& matcher ) {
-                m_matchers.push_back( matcher.clone() );
-                return *this;
-            }
-            virtual bool match( ExpressionT const& expr ) const
-            {
-                for( std::size_t i = 0; i < m_matchers.size(); ++i )
-                    if( m_matchers[i]->match( expr ) )
-                        return true;
-                return false;
-            }
-            virtual std::string toString() const {
-                std::ostringstream oss;
-                oss << "( ";
-                for( std::size_t i = 0; i < m_matchers.size(); ++i ) {
-                    if( i != 0 )
-                        oss << " or ";
-                    oss << m_matchers[i]->toString();
-                }
-                oss << " )";
-                return oss.str();
+    template <typename R, typename C>
+    struct StringMaker<R C::*> {
+        static std::string convert(R C::* p) {
+            if (p) {
+                return ::Catch::Detail::rawMemoryToString(p);
+            } else {
+                return "nullptr";
             }
+        }
+    };
 
-            AnyOf operator || ( Matcher<ExpressionT> const& other ) const {
-                AnyOf anyOfExpr( *this );
-                anyOfExpr.add( other );
-                return anyOfExpr;
+    namespace Detail {
+        template<typename InputIterator>
+        std::string rangeToString(InputIterator first, InputIterator last) {
+            std::ostringstream oss;
+            oss << "{ ";
+            if (first != last) {
+                oss << ::Catch::Detail::stringify(*first);
+                for (++first; first != last; ++first)
+                    oss << ", " << ::Catch::Detail::stringify(*first);
             }
-
-        private:
-            std::vector<Ptr<Matcher<ExpressionT> > > m_matchers;
-        };
-
-    } // namespace Generic
-
-    template<typename ExpressionT>
-    Generic::AllOf<ExpressionT> Matcher<ExpressionT>::operator && ( Matcher<ExpressionT> const& other ) const {
-        Generic::AllOf<ExpressionT> allOfExpr;
-        allOfExpr.add( *this );
-        allOfExpr.add( other );
-        return allOfExpr;
-    }
-
-    template<typename ExpressionT>
-    Generic::AnyOf<ExpressionT> Matcher<ExpressionT>::operator || ( Matcher<ExpressionT> const& other ) const {
-        Generic::AnyOf<ExpressionT> anyOfExpr;
-        anyOfExpr.add( *this );
-        anyOfExpr.add( other );
-        return anyOfExpr;
-    }
-
-    template<typename ExpressionT>
-    Generic::Not<ExpressionT> Matcher<ExpressionT>::operator ! () const {
-        return Generic::Not<ExpressionT>( *this );
+            oss << " }";
+            return oss.str();
+        }
     }
 
-    namespace StdString {
-
-        inline std::string makeString( std::string const& str ) { return str; }
-        inline std::string makeString( const char* str ) { return str ? std::string( str ) : std::string(); }
-
-        struct CasedString
-        {
-            CasedString( std::string const& str, CaseSensitive::Choice caseSensitivity )
-            :   m_caseSensitivity( caseSensitivity ),
-                m_str( adjustString( str ) )
-            {}
-            std::string adjustString( std::string const& str ) const {
-                return m_caseSensitivity == CaseSensitive::No
-                    ? toLower( str )
-                    : str;
-
-            }
-            std::string toStringSuffix() const
-            {
-                return m_caseSensitivity == CaseSensitive::No
-                    ? " (case insensitive)"
-                    : "";
-            }
-            CaseSensitive::Choice m_caseSensitivity;
-            std::string m_str;
-        };
-
-        struct Equals : MatcherImpl<Equals, std::string> {
-            Equals( std::string const& str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes )
-            :   m_data( str, caseSensitivity )
-            {}
-            Equals( Equals const& other ) : m_data( other.m_data ){}
-
-            virtual ~Equals();
-
-            virtual bool match( std::string const& expr ) const {
-                return m_data.m_str == m_data.adjustString( expr );;
-            }
-            virtual std::string toString() const {
-                return "equals: \"" + m_data.m_str + "\"" + m_data.toStringSuffix();
-            }
+    template<typename T, typename Allocator>
+    struct StringMaker<std::vector<T, Allocator> > {
+        static std::string convert( std::vector<T,Allocator> const& v ) {
+            return ::Catch::Detail::rangeToString( v.begin(), v.end() );
+        }
+    };
 
-            CasedString m_data;
-        };
+    template<typename T>
+    struct EnumStringMaker {
+        static std::string convert(const T& t) {
+            return ::Catch::Detail::stringify(static_cast<typename std::underlying_type<T>::type>(t));
+        }
+    };
 
-        struct Contains : MatcherImpl<Contains, std::string> {
-            Contains( std::string const& substr, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes )
-            : m_data( substr, caseSensitivity ){}
-            Contains( Contains const& other ) : m_data( other.m_data ){}
+#ifdef __OBJC__
+    template<>
+    struct StringMaker<NSString*> {
+        static std::string convert(NSString * nsstring) {
+            if (!nsstring)
+                return "nil";
+            return std::string("@") + [nsstring UTF8String];
+        }
+    };
+    template<>
+    struct StringMaker<NSObject*> {
+        static std::string convert(NSObject* nsObject) {
+            return ::Catch::Detail::stringify([nsObject description]);
+        }
 
-            virtual ~Contains();
+    };
+    namespace Detail {
+        inline std::string stringify( NSString* nsstring ) {
+            return StringMaker<NSString*>::convert( nsstring );
+        }
 
-            virtual bool match( std::string const& expr ) const {
-                return m_data.adjustString( expr ).find( m_data.m_str ) != std::string::npos;
-            }
-            virtual std::string toString() const {
-                return "contains: \"" + m_data.m_str  + "\"" + m_data.toStringSuffix();
-            }
+    } // namespace Detail
+#endif // __OBJC__
 
-            CasedString m_data;
-        };
+} // namespace Catch
 
-        struct StartsWith : MatcherImpl<StartsWith, std::string> {
-            StartsWith( std::string const& substr, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes )
-            : m_data( substr, caseSensitivity ){}
+//////////////////////////////////////////////////////
+// Separate std-lib types stringification, so it can be selectively enabled
+// This means that we do not bring in
 
-            StartsWith( StartsWith const& other ) : m_data( other.m_data ){}
+#if defined(CATCH_CONFIG_ENABLE_ALL_STRINGMAKERS)
+#  define CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER
+#  define CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER
+#  define CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER
+#endif
 
-            virtual ~StartsWith();
+// Separate std::pair specialization
+#if defined(CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER)
+#include <utility>
+namespace Catch {
+    template<typename T1, typename T2>
+    struct StringMaker<std::pair<T1, T2> > {
+        static std::string convert(const std::pair<T1, T2>& pair) {
+            std::ostringstream oss;
+            oss << "{ "
+                << ::Catch::Detail::stringify(pair.first)
+                << ", "
+                << ::Catch::Detail::stringify(pair.second)
+                << " }";
+            return oss.str();
+        }
+    };
+}
+#endif // CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER
 
-            virtual bool match( std::string const& expr ) const {
-                return startsWith( m_data.adjustString( expr ), m_data.m_str );
-            }
-            virtual std::string toString() const {
-                return "starts with: \"" + m_data.m_str + "\"" + m_data.toStringSuffix();
+// Separate std::tuple specialization
+#if defined(CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER)
+#include <tuple>
+namespace Catch {
+    namespace Detail {
+        template<
+            typename Tuple,
+            std::size_t N = 0,
+            bool = (N < std::tuple_size<Tuple>::value)
+            >
+            struct TupleElementPrinter {
+            static void print(const Tuple& tuple, std::ostream& os) {
+                os << (N ? ", " : " ")
+                    << ::Catch::Detail::stringify(std::get<N>(tuple));
+                TupleElementPrinter<Tuple, N + 1>::print(tuple, os);
             }
-
-            CasedString m_data;
         };
 
-        struct EndsWith : MatcherImpl<EndsWith, std::string> {
-            EndsWith( std::string const& substr, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes )
-            : m_data( substr, caseSensitivity ){}
-            EndsWith( EndsWith const& other ) : m_data( other.m_data ){}
-
-            virtual ~EndsWith();
-
-            virtual bool match( std::string const& expr ) const {
-                return endsWith( m_data.adjustString( expr ), m_data.m_str );
-            }
-            virtual std::string toString() const {
-                return "ends with: \"" + m_data.m_str + "\"" + m_data.toStringSuffix();
-            }
-
-            CasedString m_data;
+        template<
+            typename Tuple,
+            std::size_t N
+        >
+            struct TupleElementPrinter<Tuple, N, false> {
+            static void print(const Tuple&, std::ostream&) {}
         };
-    } // namespace StdString
-    } // namespace Impl
-
-    // The following functions create the actual matcher objects.
-    // This allows the types to be inferred
-    template<typename ExpressionT>
-    inline Impl::Generic::Not<ExpressionT> Not( Impl::Matcher<ExpressionT> const& m ) {
-        return Impl::Generic::Not<ExpressionT>( m );
-    }
-
-    template<typename ExpressionT>
-    inline Impl::Generic::AllOf<ExpressionT> AllOf( Impl::Matcher<ExpressionT> const& m1,
-                                                    Impl::Matcher<ExpressionT> const& m2 ) {
-        return Impl::Generic::AllOf<ExpressionT>().add( m1 ).add( m2 );
-    }
-    template<typename ExpressionT>
-    inline Impl::Generic::AllOf<ExpressionT> AllOf( Impl::Matcher<ExpressionT> const& m1,
-                                                    Impl::Matcher<ExpressionT> const& m2,
-                                                    Impl::Matcher<ExpressionT> const& m3 ) {
-        return Impl::Generic::AllOf<ExpressionT>().add( m1 ).add( m2 ).add( m3 );
-    }
-    template<typename ExpressionT>
-    inline Impl::Generic::AnyOf<ExpressionT> AnyOf( Impl::Matcher<ExpressionT> const& m1,
-                                                    Impl::Matcher<ExpressionT> const& m2 ) {
-        return Impl::Generic::AnyOf<ExpressionT>().add( m1 ).add( m2 );
-    }
-    template<typename ExpressionT>
-    inline Impl::Generic::AnyOf<ExpressionT> AnyOf( Impl::Matcher<ExpressionT> const& m1,
-                                                    Impl::Matcher<ExpressionT> const& m2,
-                                                    Impl::Matcher<ExpressionT> const& m3 ) {
-        return Impl::Generic::AnyOf<ExpressionT>().add( m1 ).add( m2 ).add( m3 );
-    }
 
-    inline Impl::StdString::Equals      Equals( std::string const& str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes ) {
-        return Impl::StdString::Equals( str, caseSensitivity );
-    }
-    inline Impl::StdString::Equals      Equals( const char* str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes ) {
-        return Impl::StdString::Equals( Impl::StdString::makeString( str ), caseSensitivity );
-    }
-    inline Impl::StdString::Contains    Contains( std::string const& substr, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes ) {
-        return Impl::StdString::Contains( substr, caseSensitivity );
-    }
-    inline Impl::StdString::Contains    Contains( const char* substr, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes ) {
-        return Impl::StdString::Contains( Impl::StdString::makeString( substr ), caseSensitivity );
-    }
-    inline Impl::StdString::StartsWith  StartsWith( std::string const& substr ) {
-        return Impl::StdString::StartsWith( substr );
-    }
-    inline Impl::StdString::StartsWith  StartsWith( const char* substr ) {
-        return Impl::StdString::StartsWith( Impl::StdString::makeString( substr ) );
-    }
-    inline Impl::StdString::EndsWith    EndsWith( std::string const& substr ) {
-        return Impl::StdString::EndsWith( substr );
     }
-    inline Impl::StdString::EndsWith    EndsWith( const char* substr ) {
-        return Impl::StdString::EndsWith( Impl::StdString::makeString( substr ) );
-    }
-
-} // namespace Matchers
-
-using namespace Matchers;
-
-} // namespace Catch
-
-namespace Catch {
-
-    struct TestFailureException{};
-
-    template<typename T> class ExpressionLhs;
-
-    struct STATIC_ASSERT_Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison;
 
-    struct CopyableStream {
-        CopyableStream() {}
-        CopyableStream( CopyableStream const& other ) {
-            oss << other.oss.str();
+    template<typename ...Types>
+    struct StringMaker<std::tuple<Types...>> {
+        static std::string convert(const std::tuple<Types...>& tuple) {
+            std::ostringstream os;
+            os << '{';
+            Detail::TupleElementPrinter<std::tuple<Types...>>::print(tuple, os);
+            os << " }";
+            return os.str();
         }
-        CopyableStream& operator=( CopyableStream const& other ) {
-            oss.str("");
-            oss << other.oss.str();
-            return *this;
-        }
-        std::ostringstream oss;
     };
+}
+#endif // CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER
 
-    class ResultBuilder {
-    public:
-        ResultBuilder(  char const* macroName,
-                        SourceLineInfo const& lineInfo,
-                        char const* capturedExpression,
-                        ResultDisposition::Flags resultDisposition,
-                        char const* secondArg = "" );
-
-        template<typename T>
-        ExpressionLhs<T const&> operator <= ( T const& operand );
-        ExpressionLhs<bool> operator <= ( bool value );
-
-        template<typename T>
-        ResultBuilder& operator << ( T const& value ) {
-            m_stream.oss << value;
-            return *this;
-        }
-
-        template<typename RhsT> STATIC_ASSERT_Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison& operator && ( RhsT const& );
-        template<typename RhsT> STATIC_ASSERT_Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison& operator || ( RhsT const& );
-
-        ResultBuilder& setResultType( ResultWas::OfType result );
-        ResultBuilder& setResultType( bool result );
-        ResultBuilder& setLhs( std::string const& lhs );
-        ResultBuilder& setRhs( std::string const& rhs );
-        ResultBuilder& setOp( std::string const& op );
-
-        void endExpression();
-
-        std::string reconstructExpression() const;
-        AssertionResult build() const;
-
-        void useActiveException( ResultDisposition::Flags resultDisposition = ResultDisposition::Normal );
-        void captureResult( ResultWas::OfType resultType );
-        void captureExpression();
-        void captureExpectedException( std::string const& expectedMessage );
-        void captureExpectedException( Matchers::Impl::Matcher<std::string> const& matcher );
-        void handleResult( AssertionResult const& result );
-        void react();
-        bool shouldDebugBreak() const;
-        bool allowThrows() const;
-
-    private:
-        AssertionInfo m_assertionInfo;
-        AssertionResultData m_data;
-        struct ExprComponents {
-            ExprComponents() : testFalse( false ) {}
-            bool testFalse;
-            std::string lhs, rhs, op;
-        } m_exprComponents;
-        CopyableStream m_stream;
-
-        bool m_shouldDebugBreak;
-        bool m_shouldThrow;
-    };
-
-} // namespace Catch
-
-// Include after due to circular dependency:
-// #included from: catch_expression_lhs.hpp
-#define TWOBLUECUBES_CATCH_EXPRESSION_LHS_HPP_INCLUDED
-
-// #included from: catch_evaluate.hpp
-#define TWOBLUECUBES_CATCH_EVALUATE_HPP_INCLUDED
+// Separate std::chrono::duration specialization
+#if defined(CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER)
+#include <ctime>
+#include <ratio>
+#include <chrono>
 
-#ifdef _MSC_VER
-#pragma warning(push)
-#pragma warning(disable:4389) // '==' : signed/unsigned mismatch
-#endif
+template <class Ratio>
+struct ratio_string {
+    static std::string symbol();
+};
 
-#include <cstddef>
+template <class Ratio>
+std::string ratio_string<Ratio>::symbol() {
+    std::ostringstream oss;
+    oss << '[' << Ratio::num << '/'
+        << Ratio::den << ']';
+    return oss.str();
+}
+template <>
+struct ratio_string<std::atto> {
+    static std::string symbol() { return "a"; }
+};
+template <>
+struct ratio_string<std::femto> {
+    static std::string symbol() { return "f"; }
+};
+template <>
+struct ratio_string<std::pico> {
+    static std::string symbol() { return "p"; }
+};
+template <>
+struct ratio_string<std::nano> {
+    static std::string symbol() { return "n"; }
+};
+template <>
+struct ratio_string<std::micro> {
+    static std::string symbol() { return "u"; }
+};
+template <>
+struct ratio_string<std::milli> {
+    static std::string symbol() { return "m"; }
+};
 
 namespace Catch {
-namespace Internal {
-
-    enum Operator {
-        IsEqualTo,
-        IsNotEqualTo,
-        IsLessThan,
-        IsGreaterThan,
-        IsLessThanOrEqualTo,
-        IsGreaterThanOrEqualTo
-    };
-
-    template<Operator Op> struct OperatorTraits             { static const char* getName(){ return "*error*"; } };
-    template<> struct OperatorTraits<IsEqualTo>             { static const char* getName(){ return "=="; } };
-    template<> struct OperatorTraits<IsNotEqualTo>          { static const char* getName(){ return "!="; } };
-    template<> struct OperatorTraits<IsLessThan>            { static const char* getName(){ return "<"; } };
-    template<> struct OperatorTraits<IsGreaterThan>         { static const char* getName(){ return ">"; } };
-    template<> struct OperatorTraits<IsLessThanOrEqualTo>   { static const char* getName(){ return "<="; } };
-    template<> struct OperatorTraits<IsGreaterThanOrEqualTo>{ static const char* getName(){ return ">="; } };
-
-    template<typename T>
-    inline T& opCast(T const& t) { return const_cast<T&>(t); }
-
-// nullptr_t support based on pull request #154 from Konstantin Baumann
-#ifdef CATCH_CONFIG_CPP11_NULLPTR
-    inline std::nullptr_t opCast(std::nullptr_t) { return nullptr; }
-#endif // CATCH_CONFIG_CPP11_NULLPTR
-
-    // So the compare overloads can be operator agnostic we convey the operator as a template
-    // enum, which is used to specialise an Evaluator for doing the comparison.
-    template<typename T1, typename T2, Operator Op>
-    class Evaluator{};
-
-    template<typename T1, typename T2>
-    struct Evaluator<T1, T2, IsEqualTo> {
-        static bool evaluate( T1 const& lhs, T2 const& rhs) {
-            return bool( opCast( lhs ) ==  opCast( rhs ) );
-        }
-    };
-    template<typename T1, typename T2>
-    struct Evaluator<T1, T2, IsNotEqualTo> {
-        static bool evaluate( T1 const& lhs, T2 const& rhs ) {
-            return bool( opCast( lhs ) != opCast( rhs ) );
+    ////////////
+    // std::chrono::duration specializations
+    template<typename Value, typename Ratio>
+    struct StringMaker<std::chrono::duration<Value, Ratio>> {
+        static std::string convert(std::chrono::duration<Value, Ratio> const& duration) {
+            std::ostringstream oss;
+            oss << duration.count() << ' ' << ratio_string<Ratio>::symbol() << 's';
+            return oss.str();
         }
     };
-    template<typename T1, typename T2>
-    struct Evaluator<T1, T2, IsLessThan> {
-        static bool evaluate( T1 const& lhs, T2 const& rhs ) {
-            return bool( opCast( lhs ) < opCast( rhs ) );
+    template<typename Value>
+    struct StringMaker<std::chrono::duration<Value, std::ratio<1>>> {
+        static std::string convert(std::chrono::duration<Value, std::ratio<1>> const& duration) {
+            std::ostringstream oss;
+            oss << duration.count() << " s";
+            return oss.str();
         }
     };
-    template<typename T1, typename T2>
-    struct Evaluator<T1, T2, IsGreaterThan> {
-        static bool evaluate( T1 const& lhs, T2 const& rhs ) {
-            return bool( opCast( lhs ) > opCast( rhs ) );
+    template<typename Value>
+    struct StringMaker<std::chrono::duration<Value, std::ratio<60>>> {
+        static std::string convert(std::chrono::duration<Value, std::ratio<60>> const& duration) {
+            std::ostringstream oss;
+            oss << duration.count() << " m";
+            return oss.str();
         }
     };
-    template<typename T1, typename T2>
-    struct Evaluator<T1, T2, IsGreaterThanOrEqualTo> {
-        static bool evaluate( T1 const& lhs, T2 const& rhs ) {
-            return bool( opCast( lhs ) >= opCast( rhs ) );
+    template<typename Value>
+    struct StringMaker<std::chrono::duration<Value, std::ratio<3600>>> {
+        static std::string convert(std::chrono::duration<Value, std::ratio<3600>> const& duration) {
+            std::ostringstream oss;
+            oss << duration.count() << " h";
+            return oss.str();
         }
     };
-    template<typename T1, typename T2>
-    struct Evaluator<T1, T2, IsLessThanOrEqualTo> {
-        static bool evaluate( T1 const& lhs, T2 const& rhs ) {
-            return bool( opCast( lhs ) <= opCast( rhs ) );
+
+    ////////////
+    // std::chrono::time_point specialization
+    // Generic time_point cannot be specialized, only std::chrono::time_point<system_clock>
+    template<typename Clock, typename Duration>
+    struct StringMaker<std::chrono::time_point<Clock, Duration>> {
+        static std::string convert(std::chrono::time_point<Clock, Duration> const& time_point) {
+            return ::Catch::Detail::stringify(time_point.time_since_epoch()) + " since epoch";
         }
     };
-
-    template<Operator Op, typename T1, typename T2>
-    bool applyEvaluator( T1 const& lhs, T2 const& rhs ) {
-        return Evaluator<T1, T2, Op>::evaluate( lhs, rhs );
-    }
-
-    // This level of indirection allows us to specialise for integer types
-    // to avoid signed/ unsigned warnings
-
-    // "base" overload
-    template<Operator Op, typename T1, typename T2>
-    bool compare( T1 const& lhs, T2 const& rhs ) {
-        return Evaluator<T1, T2, Op>::evaluate( lhs, rhs );
-    }
-
-    // unsigned X to int
-    template<Operator Op> bool compare( unsigned int lhs, int rhs ) {
-        return applyEvaluator<Op>( lhs, static_cast<unsigned int>( rhs ) );
-    }
-    template<Operator Op> bool compare( unsigned long lhs, int rhs ) {
-        return applyEvaluator<Op>( lhs, static_cast<unsigned int>( rhs ) );
-    }
-    template<Operator Op> bool compare( unsigned char lhs, int rhs ) {
-        return applyEvaluator<Op>( lhs, static_cast<unsigned int>( rhs ) );
-    }
-
-    // unsigned X to long
-    template<Operator Op> bool compare( unsigned int lhs, long rhs ) {
-        return applyEvaluator<Op>( lhs, static_cast<unsigned long>( rhs ) );
-    }
-    template<Operator Op> bool compare( unsigned long lhs, long rhs ) {
-        return applyEvaluator<Op>( lhs, static_cast<unsigned long>( rhs ) );
-    }
-    template<Operator Op> bool compare( unsigned char lhs, long rhs ) {
-        return applyEvaluator<Op>( lhs, static_cast<unsigned long>( rhs ) );
-    }
-
-    // int to unsigned X
-    template<Operator Op> bool compare( int lhs, unsigned int rhs ) {
-        return applyEvaluator<Op>( static_cast<unsigned int>( lhs ), rhs );
-    }
-    template<Operator Op> bool compare( int lhs, unsigned long rhs ) {
-        return applyEvaluator<Op>( static_cast<unsigned int>( lhs ), rhs );
-    }
-    template<Operator Op> bool compare( int lhs, unsigned char rhs ) {
-        return applyEvaluator<Op>( static_cast<unsigned int>( lhs ), rhs );
-    }
-
-    // long to unsigned X
-    template<Operator Op> bool compare( long lhs, unsigned int rhs ) {
-        return applyEvaluator<Op>( static_cast<unsigned long>( lhs ), rhs );
-    }
-    template<Operator Op> bool compare( long lhs, unsigned long rhs ) {
-        return applyEvaluator<Op>( static_cast<unsigned long>( lhs ), rhs );
-    }
-    template<Operator Op> bool compare( long lhs, unsigned char rhs ) {
-        return applyEvaluator<Op>( static_cast<unsigned long>( lhs ), rhs );
-    }
-
-    // pointer to long (when comparing against NULL)
-    template<Operator Op, typename T> bool compare( long lhs, T* rhs ) {
-        return Evaluator<T*, T*, Op>::evaluate( reinterpret_cast<T*>( lhs ), rhs );
-    }
-    template<Operator Op, typename T> bool compare( T* lhs, long rhs ) {
-        return Evaluator<T*, T*, Op>::evaluate( lhs, reinterpret_cast<T*>( rhs ) );
-    }
-
-    // pointer to int (when comparing against NULL)
-    template<Operator Op, typename T> bool compare( int lhs, T* rhs ) {
-        return Evaluator<T*, T*, Op>::evaluate( reinterpret_cast<T*>( lhs ), rhs );
-    }
-    template<Operator Op, typename T> bool compare( T* lhs, int rhs ) {
-        return Evaluator<T*, T*, Op>::evaluate( lhs, reinterpret_cast<T*>( rhs ) );
-    }
-
-#ifdef CATCH_CONFIG_CPP11_LONG_LONG
-    // long long to unsigned X
-    template<Operator Op> bool compare( long long lhs, unsigned int rhs ) {
-        return applyEvaluator<Op>( static_cast<unsigned long>( lhs ), rhs );
-    }
-    template<Operator Op> bool compare( long long lhs, unsigned long rhs ) {
-        return applyEvaluator<Op>( static_cast<unsigned long>( lhs ), rhs );
-    }
-    template<Operator Op> bool compare( long long lhs, unsigned long long rhs ) {
-        return applyEvaluator<Op>( static_cast<unsigned long>( lhs ), rhs );
-    }
-    template<Operator Op> bool compare( long long lhs, unsigned char rhs ) {
-        return applyEvaluator<Op>( static_cast<unsigned long>( lhs ), rhs );
-    }
-
-    // unsigned long long to X
-    template<Operator Op> bool compare( unsigned long long lhs, int rhs ) {
-        return applyEvaluator<Op>( static_cast<long>( lhs ), rhs );
-    }
-    template<Operator Op> bool compare( unsigned long long lhs, long rhs ) {
-        return applyEvaluator<Op>( static_cast<long>( lhs ), rhs );
-    }
-    template<Operator Op> bool compare( unsigned long long lhs, long long rhs ) {
-        return applyEvaluator<Op>( static_cast<long>( lhs ), rhs );
-    }
-    template<Operator Op> bool compare( unsigned long long lhs, char rhs ) {
-        return applyEvaluator<Op>( static_cast<long>( lhs ), rhs );
-    }
-
-    // pointer to long long (when comparing against NULL)
-    template<Operator Op, typename T> bool compare( long long lhs, T* rhs ) {
-        return Evaluator<T*, T*, Op>::evaluate( reinterpret_cast<T*>( lhs ), rhs );
-    }
-    template<Operator Op, typename T> bool compare( T* lhs, long long rhs ) {
-        return Evaluator<T*, T*, Op>::evaluate( lhs, reinterpret_cast<T*>( rhs ) );
-    }
-#endif // CATCH_CONFIG_CPP11_LONG_LONG
-
-#ifdef CATCH_CONFIG_CPP11_NULLPTR
-    // pointer to nullptr_t (when comparing against nullptr)
-    template<Operator Op, typename T> bool compare( std::nullptr_t, T* rhs ) {
-        return Evaluator<T*, T*, Op>::evaluate( nullptr, rhs );
-    }
-    template<Operator Op, typename T> bool compare( T* lhs, std::nullptr_t ) {
-        return Evaluator<T*, T*, Op>::evaluate( lhs, nullptr );
-    }
-#endif // CATCH_CONFIG_CPP11_NULLPTR
-
-} // end of namespace Internal
-} // end of namespace Catch
+    // std::chrono::time_point<system_clock> specialization
+    template<typename Duration>
+    struct StringMaker<std::chrono::time_point<std::chrono::system_clock, Duration>> {
+        static std::string convert(std::chrono::time_point<std::chrono::system_clock, Duration> const& time_point) {
+            auto converted = std::chrono::system_clock::to_time_t(time_point);
 
 #ifdef _MSC_VER
-#pragma warning(pop)
-#endif
-
-// #included from: catch_tostring.h
-#define TWOBLUECUBES_CATCH_TOSTRING_H_INCLUDED
-
-#include <sstream>
-#include <iomanip>
-#include <limits>
-#include <vector>
-#include <cstddef>
-
-#ifdef __OBJC__
-// #included from: catch_objc_arc.hpp
-#define TWOBLUECUBES_CATCH_OBJC_ARC_HPP_INCLUDED
-
-#import <Foundation/Foundation.h>
-
-#ifdef __has_feature
-#define CATCH_ARC_ENABLED __has_feature(objc_arc)
+            std::tm timeInfo = {};
+            gmtime_s(&timeInfo, &converted);
 #else
-#define CATCH_ARC_ENABLED 0
+            std::tm* timeInfo = std::gmtime(&converted);
 #endif
 
-void arcSafeRelease( NSObject* obj );
-id performOptionalSelector( id obj, SEL sel );
+            auto const timeStampSize = sizeof("2017-01-16T17:06:45Z");
+            char timeStamp[timeStampSize];
+            const char * const fmt = "%Y-%m-%dT%H:%M:%SZ";
 
-#if !CATCH_ARC_ENABLED
-inline void arcSafeRelease( NSObject* obj ) {
-    [obj release];
-}
-inline id performOptionalSelector( id obj, SEL sel ) {
-    if( [obj respondsToSelector: sel] )
-        return [obj performSelector: sel];
-    return nil;
-}
-#define CATCH_UNSAFE_UNRETAINED
-#define CATCH_ARC_STRONG
+#ifdef _MSC_VER
+            std::strftime(timeStamp, timeStampSize, fmt, &timeInfo);
 #else
-inline void arcSafeRelease( NSObject* ){}
-inline id performOptionalSelector( id obj, SEL sel ) {
-#ifdef __clang__
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
+            std::strftime(timeStamp, timeStampSize, fmt, timeInfo);
 #endif
-    if( [obj respondsToSelector: sel] )
-        return [obj performSelector: sel];
-#ifdef __clang__
-#pragma clang diagnostic pop
-#endif
-    return nil;
+            return std::string(timeStamp);
+        }
+    };
 }
-#define CATCH_UNSAFE_UNRETAINED __unsafe_unretained
-#define CATCH_ARC_STRONG __strong
-#endif
+#endif // CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER
 
+#ifdef _MSC_VER
+#pragma warning(pop)
 #endif
 
-#ifdef CATCH_CONFIG_CPP11_TUPLE
-#include <tuple>
-#endif
+// end catch_tostring.h
+#include <ostream>
 
-#ifdef CATCH_CONFIG_CPP11_IS_ENUM
-#include <type_traits>
+#ifdef _MSC_VER
+#pragma warning(push)
+#pragma warning(disable:4389) // '==' : signed/unsigned mismatch
+#pragma warning(disable:4018) // more "signed/unsigned mismatch"
+#pragma warning(disable:4312) // Converting int to T* using reinterpret_cast (issue on x64 platform)
+#pragma warning(disable:4180) // qualifier applied to function type has no meaning
 #endif
 
 namespace Catch {
 
-// Why we're here.
-template<typename T>
-std::string toString( T const& value );
-
-// Built in overloads
-
-std::string toString( std::string const& value );
-std::string toString( std::wstring const& value );
-std::string toString( const char* const value );
-std::string toString( char* const value );
-std::string toString( const wchar_t* const value );
-std::string toString( wchar_t* const value );
-std::string toString( int value );
-std::string toString( unsigned long value );
-std::string toString( unsigned int value );
-std::string toString( const double value );
-std::string toString( const float value );
-std::string toString( bool value );
-std::string toString( char value );
-std::string toString( signed char value );
-std::string toString( unsigned char value );
-
-#ifdef CATCH_CONFIG_CPP11_LONG_LONG
-std::string toString( long long value );
-std::string toString( unsigned long long value );
-#endif
+    struct ITransientExpression {
+        virtual auto isBinaryExpression() const -> bool = 0;
+        virtual auto getResult() const -> bool = 0;
+        virtual void streamReconstructedExpression( std::ostream &os ) const = 0;
 
-#ifdef CATCH_CONFIG_CPP11_NULLPTR
-std::string toString( std::nullptr_t );
-#endif
+        // We don't actually need a virtual destructore, but many static analysers
+        // complain if it's not here :-(
+        virtual ~ITransientExpression();
+    };
 
-#ifdef __OBJC__
-    std::string toString( NSString const * const& nsstring );
-    std::string toString( NSString * CATCH_ARC_STRONG const& nsstring );
-    std::string toString( NSObject* const& nsObject );
-#endif
+    void formatReconstructedExpression( std::ostream &os, std::string const& lhs, StringRef op, std::string const& rhs );
 
-namespace Detail {
+    template<typename LhsT, typename RhsT>
+    class BinaryExpr  : public ITransientExpression {
+        bool m_result;
+        LhsT m_lhs;
+        StringRef m_op;
+        RhsT m_rhs;
+
+        auto isBinaryExpression() const -> bool override { return true; }
+        auto getResult() const -> bool override { return m_result; }
 
-    extern const std::string unprintableString;
+        void streamReconstructedExpression( std::ostream &os ) const override {
+            formatReconstructedExpression
+                    ( os, Catch::Detail::stringify( m_lhs ), m_op, Catch::Detail::stringify( m_rhs ) );
+        }
 
-    struct BorgType {
-        template<typename T> BorgType( T const& );
+    public:
+        BinaryExpr( bool comparisonResult, LhsT lhs, StringRef op, RhsT rhs )
+        :   m_result( comparisonResult ),
+            m_lhs( lhs ),
+            m_op( op ),
+            m_rhs( rhs )
+        {}
     };
 
-    struct TrueType { char sizer[1]; };
-    struct FalseType { char sizer[2]; };
+    template<typename LhsT>
+    class UnaryExpr : public ITransientExpression {
+        LhsT m_lhs;
 
-    TrueType& testStreamable( std::ostream& );
-    FalseType testStreamable( FalseType );
+        auto isBinaryExpression() const -> bool override { return false; }
+        auto getResult() const -> bool override { return m_lhs ? true : false; }
 
-    FalseType operator<<( std::ostream const&, BorgType const& );
+        void streamReconstructedExpression( std::ostream &os ) const override {
+            os << Catch::Detail::stringify( m_lhs );
+        }
 
-    template<typename T>
-    struct IsStreamInsertable {
-        static std::ostream &s;
-        static T  const&t;
-        enum { value = sizeof( testStreamable(s << t) ) == sizeof( TrueType ) };
+    public:
+        UnaryExpr( LhsT lhs ) : m_lhs( lhs ) {}
     };
 
-#if defined(CATCH_CONFIG_CPP11_IS_ENUM)
-    template<typename T,
-             bool IsEnum = std::is_enum<T>::value
-             >
-    struct EnumStringMaker
-    {
-        static std::string convert( T const& ) { return unprintableString; }
-    };
+    // Specialised comparison functions to handle equality comparisons between ints and pointers (NULL deduces as an int)
+    template<typename LhsT, typename RhsT>
+    auto compareEqual( LhsT const& lhs, RhsT const& rhs ) -> bool { return lhs == rhs; };
+    template<typename T>
+    auto compareEqual( T* const& lhs, int rhs ) -> bool { return lhs == reinterpret_cast<void const*>( rhs ); }
+    template<typename T>
+    auto compareEqual( T* const& lhs, long rhs ) -> bool { return lhs == reinterpret_cast<void const*>( rhs ); }
+    template<typename T>
+    auto compareEqual( int lhs, T* const& rhs ) -> bool { return reinterpret_cast<void const*>( lhs ) == rhs; }
+    template<typename T>
+    auto compareEqual( long lhs, T* const& rhs ) -> bool { return reinterpret_cast<void const*>( lhs ) == rhs; }
 
+    template<typename LhsT, typename RhsT>
+    auto compareNotEqual( LhsT const& lhs, RhsT&& rhs ) -> bool { return lhs != rhs; };
     template<typename T>
-    struct EnumStringMaker<T,true>
-    {
-        static std::string convert( T const& v )
-        {
-            return ::Catch::toString(
-                static_cast<typename std::underlying_type<T>::type>(v)
-                );
+    auto compareNotEqual( T* const& lhs, int rhs ) -> bool { return lhs != reinterpret_cast<void const*>( rhs ); }
+    template<typename T>
+    auto compareNotEqual( T* const& lhs, long rhs ) -> bool { return lhs != reinterpret_cast<void const*>( rhs ); }
+    template<typename T>
+    auto compareNotEqual( int lhs, T* const& rhs ) -> bool { return reinterpret_cast<void const*>( lhs ) != rhs; }
+    template<typename T>
+    auto compareNotEqual( long lhs, T* const& rhs ) -> bool { return reinterpret_cast<void const*>( lhs ) != rhs; }
+
+    template<typename LhsT>
+    class ExprLhs {
+        LhsT m_lhs;
+    public:
+        ExprLhs( LhsT lhs ) : m_lhs( lhs ) {}
+
+        template<typename RhsT>
+        auto operator == ( RhsT const& rhs ) -> BinaryExpr<LhsT, RhsT const&> const {
+            return BinaryExpr<LhsT, RhsT const&>( compareEqual( m_lhs, rhs ), m_lhs, "==", rhs );
         }
-    };
-#endif
-    template<bool C>
-    struct StringMakerBase {
-#if defined(CATCH_CONFIG_CPP11_IS_ENUM)
-        template<typename T>
-        static std::string convert( T const& v )
-        {
-            return EnumStringMaker<T>::convert( v );
+        auto operator == ( bool rhs ) -> BinaryExpr<LhsT, bool> const {
+            return BinaryExpr<LhsT, bool>( m_lhs == rhs, m_lhs, "==", rhs );
         }
-#else
-        template<typename T>
-        static std::string convert( T const& ) { return unprintableString; }
-#endif
-    };
 
-    template<>
-    struct StringMakerBase<true> {
-        template<typename T>
-        static std::string convert( T const& _value ) {
-            std::ostringstream oss;
-            oss << _value;
-            return oss.str();
+        template<typename RhsT>
+        auto operator != ( RhsT const& rhs ) -> BinaryExpr<LhsT, RhsT const&> const {
+            return BinaryExpr<LhsT, RhsT const&>( compareNotEqual( m_lhs, rhs ), m_lhs, "!=", rhs );
+        }
+        auto operator != ( bool rhs ) -> BinaryExpr<LhsT, bool> const {
+            return BinaryExpr<LhsT, bool>( m_lhs != rhs, m_lhs, "!=", rhs );
+        }
+
+        template<typename RhsT>
+        auto operator > ( RhsT const& rhs ) -> BinaryExpr<LhsT, RhsT const&> const {
+            return BinaryExpr<LhsT, RhsT const&>( m_lhs > rhs, m_lhs, ">", rhs );
+        }
+        template<typename RhsT>
+        auto operator < ( RhsT const& rhs ) -> BinaryExpr<LhsT, RhsT const&> const {
+            return BinaryExpr<LhsT, RhsT const&>( m_lhs < rhs, m_lhs, "<", rhs );
+        }
+        template<typename RhsT>
+        auto operator >= ( RhsT const& rhs ) -> BinaryExpr<LhsT, RhsT const&> const {
+            return BinaryExpr<LhsT, RhsT const&>( m_lhs >= rhs, m_lhs, ">=", rhs );
+        }
+        template<typename RhsT>
+        auto operator <= ( RhsT const& rhs ) -> BinaryExpr<LhsT, RhsT const&> const {
+            return BinaryExpr<LhsT, RhsT const&>( m_lhs <= rhs, m_lhs, "<=", rhs );
+        }
+
+        auto makeUnaryExpr() const -> UnaryExpr<LhsT> {
+            return UnaryExpr<LhsT>( m_lhs );
         }
     };
 
-    std::string rawMemoryToString( const void *object, std::size_t size );
+    void handleExpression( ITransientExpression const& expr );
 
     template<typename T>
-    inline std::string rawMemoryToString( const T& object ) {
-      return rawMemoryToString( &object, sizeof(object) );
+    void handleExpression( ExprLhs<T> const& expr ) {
+        handleExpression( expr.makeUnaryExpr() );
     }
 
-} // end namespace Detail
+    struct Decomposer {
+        template<typename T>
+        auto operator <= ( T const& lhs ) -> ExprLhs<T const&> {
+            return ExprLhs<T const&>( lhs );
+        }
+        auto operator <=( bool value ) -> ExprLhs<bool> {
+            return ExprLhs<bool>( value );
+        }
+    };
 
-template<typename T>
-struct StringMaker :
-    Detail::StringMakerBase<Detail::IsStreamInsertable<T>::value> {};
+} // end namespace Catch
 
-template<typename T>
-struct StringMaker<T*> {
-    template<typename U>
-    static std::string convert( U* p ) {
-        if( !p )
-            return "NULL";
-        else
-            return Detail::rawMemoryToString( p );
-    }
-};
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif
 
-template<typename R, typename C>
-struct StringMaker<R C::*> {
-    static std::string convert( R C::* p ) {
-        if( !p )
-            return "NULL";
-        else
-            return Detail::rawMemoryToString( p );
-    }
-};
+// end catch_decomposer.h
+// start catch_assertioninfo.h
 
-namespace Detail {
-    template<typename InputIterator>
-    std::string rangeToString( InputIterator first, InputIterator last );
-}
+// start catch_result_type.h
 
-//template<typename T, typename Allocator>
-//struct StringMaker<std::vector<T, Allocator> > {
-//    static std::string convert( std::vector<T,Allocator> const& v ) {
-//        return Detail::rangeToString( v.begin(), v.end() );
-//    }
-//};
+namespace Catch {
 
-template<typename T, typename Allocator>
-std::string toString( std::vector<T,Allocator> const& v ) {
-    return Detail::rangeToString( v.begin(), v.end() );
-}
+    // ResultWas::OfType enum
+    struct ResultWas { enum OfType {
+        Unknown = -1,
+        Ok = 0,
+        Info = 1,
+        Warning = 2,
 
-#ifdef CATCH_CONFIG_CPP11_TUPLE
-
-// toString for tuples
-namespace TupleDetail {
-  template<
-      typename Tuple,
-      std::size_t N = 0,
-      bool = (N < std::tuple_size<Tuple>::value)
-      >
-  struct ElementPrinter {
-      static void print( const Tuple& tuple, std::ostream& os )
-      {
-          os << ( N ? ", " : " " )
-             << Catch::toString(std::get<N>(tuple));
-          ElementPrinter<Tuple,N+1>::print(tuple,os);
-      }
-  };
-
-  template<
-      typename Tuple,
-      std::size_t N
-      >
-  struct ElementPrinter<Tuple,N,false> {
-      static void print( const Tuple&, std::ostream& ) {}
-  };
+        FailureBit = 0x10,
 
-}
+        ExpressionFailed = FailureBit | 1,
+        ExplicitFailure = FailureBit | 2,
 
-template<typename ...Types>
-struct StringMaker<std::tuple<Types...>> {
+        Exception = 0x100 | FailureBit,
 
-    static std::string convert( const std::tuple<Types...>& tuple )
-    {
-        std::ostringstream os;
-        os << '{';
-        TupleDetail::ElementPrinter<std::tuple<Types...>>::print( tuple, os );
-        os << " }";
-        return os.str();
-    }
-};
-#endif // CATCH_CONFIG_CPP11_TUPLE
+        ThrewException = Exception | 1,
+        DidntThrowException = Exception | 2,
 
-namespace Detail {
-    template<typename T>
-    std::string makeString( T const& value ) {
-        return StringMaker<T>::convert( value );
-    }
-} // end namespace Detail
+        FatalErrorCondition = 0x200 | FailureBit
 
-/// \brief converts any type to a string
-///
-/// The default template forwards on to ostringstream - except when an
-/// ostringstream overload does not exist - in which case it attempts to detect
-/// that and writes {?}.
-/// Overload (not specialise) this template for custom typs that you don't want
-/// to provide an ostream overload for.
-template<typename T>
-std::string toString( T const& value ) {
-    return StringMaker<T>::convert( value );
-}
+    }; };
 
-    namespace Detail {
-    template<typename InputIterator>
-    std::string rangeToString( InputIterator first, InputIterator last ) {
-        std::ostringstream oss;
-        oss << "{ ";
-        if( first != last ) {
-            oss << Catch::toString( *first );
-            for( ++first ; first != last ; ++first )
-                oss << ", " << Catch::toString( *first );
-        }
-        oss << " }";
-        return oss.str();
-    }
-}
+    bool isOk( ResultWas::OfType resultType );
+    bool isJustInfo( int flags );
 
-} // end namespace Catch
+    // ResultDisposition::Flags enum
+    struct ResultDisposition { enum Flags {
+        Normal = 0x01,
 
-namespace Catch {
+        ContinueOnFailure = 0x02,   // Failures fail test, but execution continues
+        FalseTest = 0x04,           // Prefix expression with !
+        SuppressFail = 0x08         // Failures are reported but do not fail the test
+    }; };
 
-// Wraps the LHS of an expression and captures the operator and RHS (if any) -
-// wrapping them all in a ResultBuilder object
-template<typename T>
-class ExpressionLhs {
-    ExpressionLhs& operator = ( ExpressionLhs const& );
-#  ifdef CATCH_CONFIG_CPP11_GENERATED_METHODS
-    ExpressionLhs& operator = ( ExpressionLhs && ) = delete;
-#  endif
+    ResultDisposition::Flags operator | ( ResultDisposition::Flags lhs, ResultDisposition::Flags rhs );
 
-public:
-    ExpressionLhs( ResultBuilder& rb, T lhs ) : m_rb( rb ), m_lhs( lhs ) {}
-#  ifdef CATCH_CONFIG_CPP11_GENERATED_METHODS
-    ExpressionLhs( ExpressionLhs const& ) = default;
-    ExpressionLhs( ExpressionLhs && )     = default;
-#  endif
+    bool shouldContinueOnFailure( int flags );
+    bool isFalseTest( int flags );
+    bool shouldSuppressFailure( int flags );
 
-    template<typename RhsT>
-    ResultBuilder& operator == ( RhsT const& rhs ) {
-        return captureExpression<Internal::IsEqualTo>( rhs );
-    }
+} // end namespace Catch
 
-    template<typename RhsT>
-    ResultBuilder& operator != ( RhsT const& rhs ) {
-        return captureExpression<Internal::IsNotEqualTo>( rhs );
-    }
+// end catch_result_type.h
+namespace Catch {
 
-    template<typename RhsT>
-    ResultBuilder& operator < ( RhsT const& rhs ) {
-        return captureExpression<Internal::IsLessThan>( rhs );
-    }
+    struct AssertionInfo
+    {
+        StringRef macroName;
+        SourceLineInfo lineInfo;
+        StringRef capturedExpression;
+        ResultDisposition::Flags resultDisposition;
 
-    template<typename RhsT>
-    ResultBuilder& operator > ( RhsT const& rhs ) {
-        return captureExpression<Internal::IsGreaterThan>( rhs );
-    }
+        // We want to delete this constructor but a compiler bug in 4.8 means
+        // the struct is then treated as non-aggregate
+        //AssertionInfo() = delete;
+    };
 
-    template<typename RhsT>
-    ResultBuilder& operator <= ( RhsT const& rhs ) {
-        return captureExpression<Internal::IsLessThanOrEqualTo>( rhs );
-    }
+} // end namespace Catch
 
-    template<typename RhsT>
-    ResultBuilder& operator >= ( RhsT const& rhs ) {
-        return captureExpression<Internal::IsGreaterThanOrEqualTo>( rhs );
-    }
+// end catch_assertioninfo.h
+namespace Catch {
 
-    ResultBuilder& operator == ( bool rhs ) {
-        return captureExpression<Internal::IsEqualTo>( rhs );
-    }
+    struct TestFailureException{};
+    struct AssertionResultData;
 
-    ResultBuilder& operator != ( bool rhs ) {
-        return captureExpression<Internal::IsNotEqualTo>( rhs );
-    }
+    class LazyExpression {
+        friend class AssertionHandler;
+        friend struct AssertionStats;
 
-    void endExpression() {
-        bool value = m_lhs ? true : false;
-        m_rb
-            .setLhs( Catch::toString( value ) )
-            .setResultType( value )
-            .endExpression();
-    }
+        ITransientExpression const* m_transientExpression = nullptr;
+        bool m_isNegated;
+    public:
+        LazyExpression( bool isNegated );
+        LazyExpression( LazyExpression const& other );
+        LazyExpression& operator = ( LazyExpression const& ) = delete;
 
-    // Only simple binary expressions are allowed on the LHS.
-    // If more complex compositions are required then place the sub expression in parentheses
-    template<typename RhsT> STATIC_ASSERT_Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison& operator + ( RhsT const& );
-    template<typename RhsT> STATIC_ASSERT_Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison& operator - ( RhsT const& );
-    template<typename RhsT> STATIC_ASSERT_Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison& operator / ( RhsT const& );
-    template<typename RhsT> STATIC_ASSERT_Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison& operator * ( RhsT const& );
-    template<typename RhsT> STATIC_ASSERT_Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison& operator && ( RhsT const& );
-    template<typename RhsT> STATIC_ASSERT_Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison& operator || ( RhsT const& );
+        explicit operator bool() const;
 
-private:
-    template<Internal::Operator Op, typename RhsT>
-    ResultBuilder& captureExpression( RhsT const& rhs ) {
-        return m_rb
-            .setResultType( Internal::compare<Op>( m_lhs, rhs ) )
-            .setLhs( Catch::toString( m_lhs ) )
-            .setRhs( Catch::toString( rhs ) )
-            .setOp( Internal::OperatorTraits<Op>::getName() );
-    }
+        friend auto operator << ( std::ostream& os, LazyExpression const& lazyExpr ) -> std::ostream&;
+    };
 
-private:
-    ResultBuilder& m_rb;
-    T m_lhs;
-};
+    class AssertionHandler {
+        AssertionInfo m_assertionInfo;
+        bool m_shouldDebugBreak = false;
+        bool m_shouldThrow = false;
+        bool m_inExceptionGuard = false;
 
-} // end namespace Catch
+    public:
+        AssertionHandler
+            (   StringRef macroName,
+                SourceLineInfo const& lineInfo,
+                StringRef capturedExpression,
+                ResultDisposition::Flags resultDisposition );
+        ~AssertionHandler();
 
+        void handle( ITransientExpression const& expr );
 
-namespace Catch {
+        template<typename T>
+        void handle( ExprLhs<T> const& expr ) {
+            handle( expr.makeUnaryExpr() );
+        }
+        void handle( ResultWas::OfType resultType );
+        void handle( ResultWas::OfType resultType, StringRef const& message );
+        void handle( ResultWas::OfType resultType, ITransientExpression const* expr, bool negated );
+        void handle( AssertionResultData const& resultData, ITransientExpression const* expr );
 
-    template<typename T>
-    inline ExpressionLhs<T const&> ResultBuilder::operator <= ( T const& operand ) {
-        return ExpressionLhs<T const&>( *this, operand );
-    }
+        auto shouldDebugBreak() const -> bool;
+        auto allowThrows() const -> bool;
+        void reactWithDebugBreak() const;
+        void reactWithoutDebugBreak() const;
+        void useActiveException();
+        void setExceptionGuard();
+        void unsetExceptionGuard();
+    };
 
-    inline ExpressionLhs<bool> ResultBuilder::operator <= ( bool value ) {
-        return ExpressionLhs<bool>( *this, value );
-    }
+    void handleExceptionMatchExpr( AssertionHandler& handler, std::string const& str, StringRef matcherString );
 
 } // namespace Catch
 
-// #included from: catch_message.h
-#define TWOBLUECUBES_CATCH_MESSAGE_H_INCLUDED
+// end catch_assertionhandler.h
+// start catch_message.h
 
 #include <string>
+#include <sstream>
 
 namespace Catch {
 
@@ -1903,27 +1264,33 @@ namespace Catch {
                         ResultWas::OfType _type );
 
         std::string macroName;
+        std::string message;
         SourceLineInfo lineInfo;
         ResultWas::OfType type;
-        std::string message;
         unsigned int sequence;
 
-        bool operator == ( MessageInfo const& other ) const {
-            return sequence == other.sequence;
-        }
-        bool operator < ( MessageInfo const& other ) const {
-            return sequence < other.sequence;
-        }
+        bool operator == ( MessageInfo const& other ) const;
+        bool operator < ( MessageInfo const& other ) const;
     private:
         static unsigned int globalCount;
     };
 
-    struct MessageBuilder {
+    struct MessageStream {
+
+        template<typename T>
+        MessageStream& operator << ( T const& value ) {
+            m_stream << value;
+            return *this;
+        }
+
+        // !TBD reuse a global/ thread-local stream
+        std::ostringstream m_stream;
+    };
+
+    struct MessageBuilder : MessageStream {
         MessageBuilder( std::string const& macroName,
                         SourceLineInfo const& lineInfo,
-                        ResultWas::OfType type )
-        : m_info( macroName, lineInfo, type )
-        {}
+                        ResultWas::OfType type );
 
         template<typename T>
         MessageBuilder& operator << ( T const& value ) {
@@ -1932,13 +1299,11 @@ namespace Catch {
         }
 
         MessageInfo m_info;
-        std::ostringstream m_stream;
     };
 
     class ScopedMessage {
     public:
         ScopedMessage( MessageBuilder const& builder );
-        ScopedMessage( ScopedMessage const& other );
         ~ScopedMessage();
 
         MessageInfo m_info;
@@ -1946,305 +1311,275 @@ namespace Catch {
 
 } // end namespace Catch
 
-// #included from: catch_interfaces_capture.h
-#define TWOBLUECUBES_CATCH_INTERFACES_CAPTURE_H_INCLUDED
+// end catch_message.h
+// start catch_interfaces_capture.h
 
 #include <string>
 
 namespace Catch {
 
-    class TestCase;
     class AssertionResult;
     struct AssertionInfo;
     struct SectionInfo;
     struct SectionEndInfo;
     struct MessageInfo;
-    class ScopedMessageBuilder;
     struct Counts;
+    struct BenchmarkInfo;
+    struct BenchmarkStats;
 
     struct IResultCapture {
 
         virtual ~IResultCapture();
 
+        virtual void assertionStarting( AssertionInfo const& info ) = 0;
         virtual void assertionEnded( AssertionResult const& result ) = 0;
         virtual bool sectionStarted(    SectionInfo const& sectionInfo,
                                         Counts& assertions ) = 0;
         virtual void sectionEnded( SectionEndInfo const& endInfo ) = 0;
         virtual void sectionEndedEarly( SectionEndInfo const& endInfo ) = 0;
+
+        virtual void benchmarkStarting( BenchmarkInfo const& info ) = 0;
+        virtual void benchmarkEnded( BenchmarkStats const& stats ) = 0;
+
         virtual void pushScopedMessage( MessageInfo const& message ) = 0;
         virtual void popScopedMessage( MessageInfo const& message ) = 0;
 
         virtual std::string getCurrentTestName() const = 0;
         virtual const AssertionResult* getLastResult() const = 0;
 
-        virtual void handleFatalErrorCondition( std::string const& message ) = 0;
+        virtual void exceptionEarlyReported() = 0;
+
+        virtual void handleFatalErrorCondition( StringRef message ) = 0;
+
+        virtual bool lastAssertionPassed() = 0;
+        virtual void assertionPassed() = 0;
+        virtual void assertionRun() = 0;
     };
 
     IResultCapture& getResultCapture();
 }
 
-// #included from: catch_debugger.h
-#define TWOBLUECUBES_CATCH_DEBUGGER_H_INCLUDED
-
-// #included from: catch_platform.h
-#define TWOBLUECUBES_CATCH_PLATFORM_H_INCLUDED
-
-#if defined(__MAC_OS_X_VERSION_MIN_REQUIRED)
-#define CATCH_PLATFORM_MAC
-#elif  defined(__IPHONE_OS_VERSION_MIN_REQUIRED)
-#define CATCH_PLATFORM_IPHONE
-#elif defined(WIN32) || defined(__WIN32__) || defined(_WIN32) || defined(_MSC_VER)
-#define CATCH_PLATFORM_WINDOWS
-#endif
-
-#include <string>
-
-namespace Catch{
+// end catch_interfaces_capture.h
+// start catch_debugger.h
 
+namespace Catch {
     bool isDebuggerActive();
-    void writeToDebugConsole( std::string const& text );
 }
 
 #ifdef CATCH_PLATFORM_MAC
 
-    // The following code snippet based on:
-    // http://cocoawithlove.com/2008/03/break-into-debugger.html
-    #ifdef DEBUG
-        #if defined(__ppc64__) || defined(__ppc__)
-            #define CATCH_BREAK_INTO_DEBUGGER() \
-                if( Catch::isDebuggerActive() ) { \
-                    __asm__("li r0, 20\nsc\nnop\nli r0, 37\nli r4, 2\nsc\nnop\n" \
-                    : : : "memory","r0","r3","r4" ); \
-                }
-        #else
-            #define CATCH_BREAK_INTO_DEBUGGER() if( Catch::isDebuggerActive() ) {__asm__("int $3\n" : : );}
-        #endif
-    #endif
+    #define CATCH_TRAP() __asm__("int $3\n" : : ) /* NOLINT */
+
+#elif defined(CATCH_PLATFORM_LINUX)
+    // If we can use inline assembler, do it because this allows us to break
+    // directly at the location of the failing check instead of breaking inside
+    // raise() called from it, i.e. one stack frame below.
+    #if defined(__GNUC__) && (defined(__i386) || defined(__x86_64))
+        #define CATCH_TRAP() asm volatile ("int $3") /* NOLINT */
+    #else // Fall back to the generic way.
+        #include <signal.h>
 
+        #define CATCH_TRAP() raise(SIGTRAP)
+    #endif
 #elif defined(_MSC_VER)
-    #define CATCH_BREAK_INTO_DEBUGGER() if( Catch::isDebuggerActive() ) { __debugbreak(); }
+    #define CATCH_TRAP() __debugbreak()
 #elif defined(__MINGW32__)
     extern "C" __declspec(dllimport) void __stdcall DebugBreak();
-    #define CATCH_BREAK_INTO_DEBUGGER() if( Catch::isDebuggerActive() ) { DebugBreak(); }
+    #define CATCH_TRAP() DebugBreak()
 #endif
 
-#ifndef CATCH_BREAK_INTO_DEBUGGER
-#define CATCH_BREAK_INTO_DEBUGGER() Catch::alwaysTrue();
+#ifdef CATCH_TRAP
+    #define CATCH_BREAK_INTO_DEBUGGER() if( Catch::isDebuggerActive() ) { CATCH_TRAP(); }
+#else
+    #define CATCH_BREAK_INTO_DEBUGGER() Catch::alwaysTrue();
 #endif
 
-// #included from: catch_interfaces_runner.h
-#define TWOBLUECUBES_CATCH_INTERFACES_RUNNER_H_INCLUDED
+// end catch_debugger.h
+#if !defined(CATCH_CONFIG_DISABLE)
 
-namespace Catch {
-    class TestCase;
+#if !defined(CATCH_CONFIG_DISABLE_STRINGIFICATION)
+  #define CATCH_INTERNAL_STRINGIFY(...) #__VA_ARGS__
+#else
+  #define CATCH_INTERNAL_STRINGIFY(...) "Disabled by CATCH_CONFIG_DISABLE_STRINGIFICATION"
+#endif
 
-    struct IRunner {
-        virtual ~IRunner();
-        virtual bool aborting() const = 0;
-    };
-}
+#if defined(CATCH_CONFIG_FAST_COMPILE)
+///////////////////////////////////////////////////////////////////////////////
+// We can speedup compilation significantly by breaking into debugger lower in
+// the callstack, because then we don't have to expand CATCH_BREAK_INTO_DEBUGGER
+// macro in each assertion
+#define INTERNAL_CATCH_REACT( handler ) \
+    handler.reactWithDebugBreak();
+
+///////////////////////////////////////////////////////////////////////////////
+// Another way to speed-up compilation is to omit local try-catch for REQUIRE*
+// macros.
+// This can potentially cause false negative, if the test code catches
+// the exception before it propagates back up to the runner.
+#define INTERNAL_CATCH_TRY( capturer ) capturer.setExceptionGuard();
+#define INTERNAL_CATCH_CATCH( capturer ) capturer.unsetExceptionGuard();
+
+#else // CATCH_CONFIG_FAST_COMPILE
 
 ///////////////////////////////////////////////////////////////////////////////
 // In the event of a failure works out if the debugger needs to be invoked
 // and/or an exception thrown and takes appropriate action.
 // This needs to be done as a macro so the debugger will stop in the user
 // source code rather than in Catch library code
-#define INTERNAL_CATCH_REACT( resultBuilder ) \
-    if( resultBuilder.shouldDebugBreak() ) CATCH_BREAK_INTO_DEBUGGER(); \
-    resultBuilder.react();
+#define INTERNAL_CATCH_REACT( handler ) \
+    if( handler.shouldDebugBreak() ) CATCH_BREAK_INTO_DEBUGGER(); \
+    handler.reactWithoutDebugBreak();
+
+#define INTERNAL_CATCH_TRY( capturer ) try
+#define INTERNAL_CATCH_CATCH( capturer ) catch(...) { capturer.useActiveException(); }
+
+#endif
 
 ///////////////////////////////////////////////////////////////////////////////
-#define INTERNAL_CATCH_TEST( expr, resultDisposition, macroName ) \
+#define INTERNAL_CATCH_TEST( macroName, resultDisposition, ... ) \
     do { \
-        Catch::ResultBuilder __catchResult( macroName, CATCH_INTERNAL_LINEINFO, #expr, resultDisposition ); \
-        try { \
+        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition ); \
+        INTERNAL_CATCH_TRY( catchAssertionHandler ) { \
             CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS \
-            ( __catchResult <= expr ).endExpression(); \
-        } \
-        catch( ... ) { \
-            __catchResult.useActiveException( Catch::ResultDisposition::Normal ); \
-        } \
-        INTERNAL_CATCH_REACT( __catchResult ) \
-    } while( Catch::isTrue( false && static_cast<bool>(expr) ) ) // expr here is never evaluated at runtime but it forces the compiler to give it a look
+            catchAssertionHandler.handle( Catch::Decomposer() <= __VA_ARGS__ ); \
+            CATCH_INTERNAL_UNSUPPRESS_PARENTHESES_WARNINGS \
+        } INTERNAL_CATCH_CATCH( catchAssertionHandler ) \
+        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
+    } while( Catch::isTrue( false && static_cast<bool>( !!(__VA_ARGS__) ) ) ) // the expression here is never evaluated at runtime but it forces the compiler to give it a look
+    // The double negation silences MSVC's C4800 warning, the static_cast forces short-circuit evaluation if the type has overloaded &&.
 
 ///////////////////////////////////////////////////////////////////////////////
-#define INTERNAL_CATCH_IF( expr, resultDisposition, macroName ) \
-    INTERNAL_CATCH_TEST( expr, resultDisposition, macroName ); \
-    if( Catch::getResultCapture().getLastResult()->succeeded() )
+#define INTERNAL_CATCH_IF( macroName, resultDisposition, ... ) \
+    INTERNAL_CATCH_TEST( macroName, resultDisposition, __VA_ARGS__ ); \
+    if( Catch::getResultCapture().lastAssertionPassed() )
 
 ///////////////////////////////////////////////////////////////////////////////
-#define INTERNAL_CATCH_ELSE( expr, resultDisposition, macroName ) \
-    INTERNAL_CATCH_TEST( expr, resultDisposition, macroName ); \
-    if( !Catch::getResultCapture().getLastResult()->succeeded() )
+#define INTERNAL_CATCH_ELSE( macroName, resultDisposition, ... ) \
+    INTERNAL_CATCH_TEST( macroName, resultDisposition, __VA_ARGS__ ); \
+    if( !Catch::getResultCapture().lastAssertionPassed() )
 
 ///////////////////////////////////////////////////////////////////////////////
-#define INTERNAL_CATCH_NO_THROW( expr, resultDisposition, macroName ) \
+#define INTERNAL_CATCH_NO_THROW( macroName, resultDisposition, ... ) \
     do { \
-        Catch::ResultBuilder __catchResult( macroName, CATCH_INTERNAL_LINEINFO, #expr, resultDisposition ); \
+        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition ); \
         try { \
-            expr; \
-            __catchResult.captureResult( Catch::ResultWas::Ok ); \
+            static_cast<void>(__VA_ARGS__); \
+            catchAssertionHandler.handle( Catch::ResultWas::Ok ); \
         } \
         catch( ... ) { \
-            __catchResult.useActiveException( resultDisposition ); \
+            catchAssertionHandler.useActiveException(); \
         } \
-        INTERNAL_CATCH_REACT( __catchResult ) \
+        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
     } while( Catch::alwaysFalse() )
 
 ///////////////////////////////////////////////////////////////////////////////
-#define INTERNAL_CATCH_THROWS( expr, resultDisposition, matcher, macroName ) \
+#define INTERNAL_CATCH_THROWS( macroName, resultDisposition, ... ) \
     do { \
-        Catch::ResultBuilder __catchResult( macroName, CATCH_INTERNAL_LINEINFO, #expr, resultDisposition, #matcher ); \
-        if( __catchResult.allowThrows() ) \
+        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition); \
+        if( catchAssertionHandler.allowThrows() ) \
             try { \
-                expr; \
-                __catchResult.captureResult( Catch::ResultWas::DidntThrowException ); \
+                static_cast<void>(__VA_ARGS__); \
+                catchAssertionHandler.handle( Catch::ResultWas::DidntThrowException ); \
             } \
             catch( ... ) { \
-                __catchResult.captureExpectedException( matcher ); \
+                catchAssertionHandler.handle( Catch::ResultWas::Ok ); \
             } \
         else \
-            __catchResult.captureResult( Catch::ResultWas::Ok ); \
-        INTERNAL_CATCH_REACT( __catchResult ) \
+            catchAssertionHandler.handle( Catch::ResultWas::Ok ); \
+        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
     } while( Catch::alwaysFalse() )
 
 ///////////////////////////////////////////////////////////////////////////////
-#define INTERNAL_CATCH_THROWS_AS( expr, exceptionType, resultDisposition, macroName ) \
+#define INTERNAL_CATCH_THROWS_AS( macroName, exceptionType, resultDisposition, expr ) \
     do { \
-        Catch::ResultBuilder __catchResult( macroName, CATCH_INTERNAL_LINEINFO, #expr, resultDisposition ); \
-        if( __catchResult.allowThrows() ) \
+        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(expr) ", " CATCH_INTERNAL_STRINGIFY(exceptionType), resultDisposition ); \
+        if( catchAssertionHandler.allowThrows() ) \
             try { \
-                expr; \
-                __catchResult.captureResult( Catch::ResultWas::DidntThrowException ); \
+                static_cast<void>(expr); \
+                catchAssertionHandler.handle( Catch::ResultWas::DidntThrowException ); \
             } \
-            catch( exceptionType ) { \
-                __catchResult.captureResult( Catch::ResultWas::Ok ); \
+            catch( exceptionType const& ) { \
+                catchAssertionHandler.handle( Catch::ResultWas::Ok ); \
             } \
             catch( ... ) { \
-                __catchResult.useActiveException( resultDisposition ); \
+                catchAssertionHandler.useActiveException(); \
             } \
         else \
-            __catchResult.captureResult( Catch::ResultWas::Ok ); \
-        INTERNAL_CATCH_REACT( __catchResult ) \
+            catchAssertionHandler.handle( Catch::ResultWas::Ok ); \
+        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
     } while( Catch::alwaysFalse() )
 
 ///////////////////////////////////////////////////////////////////////////////
-#ifdef CATCH_CONFIG_VARIADIC_MACROS
-    #define INTERNAL_CATCH_MSG( messageType, resultDisposition, macroName, ... ) \
-        do { \
-            Catch::ResultBuilder __catchResult( macroName, CATCH_INTERNAL_LINEINFO, "", resultDisposition ); \
-            __catchResult << __VA_ARGS__ + ::Catch::StreamEndStop(); \
-            __catchResult.captureResult( messageType ); \
-            INTERNAL_CATCH_REACT( __catchResult ) \
-        } while( Catch::alwaysFalse() )
-#else
-    #define INTERNAL_CATCH_MSG( messageType, resultDisposition, macroName, log ) \
-        do { \
-            Catch::ResultBuilder __catchResult( macroName, CATCH_INTERNAL_LINEINFO, "", resultDisposition ); \
-            __catchResult << log + ::Catch::StreamEndStop(); \
-            __catchResult.captureResult( messageType ); \
-            INTERNAL_CATCH_REACT( __catchResult ) \
-        } while( Catch::alwaysFalse() )
-#endif
+#define INTERNAL_CATCH_MSG( macroName, messageType, resultDisposition, ... ) \
+    do { \
+        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, "", resultDisposition ); \
+        catchAssertionHandler.handle( messageType, ( Catch::MessageStream() << __VA_ARGS__ + ::Catch::StreamEndStop() ).m_stream.str() ); \
+        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
+    } while( Catch::alwaysFalse() )
 
 ///////////////////////////////////////////////////////////////////////////////
-#define INTERNAL_CATCH_INFO( log, macroName ) \
+#define INTERNAL_CATCH_INFO( macroName, log ) \
     Catch::ScopedMessage INTERNAL_CATCH_UNIQUE_NAME( scopedMessage ) = Catch::MessageBuilder( macroName, CATCH_INTERNAL_LINEINFO, Catch::ResultWas::Info ) << log;
 
 ///////////////////////////////////////////////////////////////////////////////
-#define INTERNAL_CHECK_THAT( arg, matcher, resultDisposition, macroName ) \
+// Although this is matcher-based, it can be used with just a string
+#define INTERNAL_CATCH_THROWS_STR_MATCHES( macroName, resultDisposition, matcher, ... ) \
     do { \
-        Catch::ResultBuilder __catchResult( macroName, CATCH_INTERNAL_LINEINFO, #arg ", " #matcher, resultDisposition ); \
-        try { \
-            std::string matcherAsString = (matcher).toString(); \
-            __catchResult \
-                .setLhs( Catch::toString( arg ) ) \
-                .setRhs( matcherAsString == Catch::Detail::unprintableString ? #matcher : matcherAsString ) \
-                .setOp( "matches" ) \
-                .setResultType( (matcher).match( arg ) ); \
-            __catchResult.captureExpression(); \
-        } catch( ... ) { \
-            __catchResult.useActiveException( resultDisposition | Catch::ResultDisposition::ContinueOnFailure ); \
-        } \
-        INTERNAL_CATCH_REACT( __catchResult ) \
+        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__) ", " CATCH_INTERNAL_STRINGIFY(matcher), resultDisposition ); \
+        if( catchAssertionHandler.allowThrows() ) \
+            try { \
+                static_cast<void>(__VA_ARGS__); \
+                catchAssertionHandler.handle( Catch::ResultWas::DidntThrowException ); \
+            } \
+            catch( ... ) { \
+                handleExceptionMatchExpr( catchAssertionHandler, matcher, #matcher ); \
+            } \
+        else \
+            catchAssertionHandler.handle( Catch::ResultWas::Ok ); \
+        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
     } while( Catch::alwaysFalse() )
 
-// #included from: internal/catch_section.h
-#define TWOBLUECUBES_CATCH_SECTION_H_INCLUDED
+#endif // CATCH_CONFIG_DISABLE
+
+// end catch_capture.hpp
+// start catch_section.h
 
-// #included from: catch_section_info.h
-#define TWOBLUECUBES_CATCH_SECTION_INFO_H_INCLUDED
+// start catch_section_info.h
 
-// #included from: catch_totals.hpp
-#define TWOBLUECUBES_CATCH_TOTALS_HPP_INCLUDED
+// start catch_totals.h
 
 #include <cstddef>
 
 namespace Catch {
 
     struct Counts {
-        Counts() : passed( 0 ), failed( 0 ), failedButOk( 0 ) {}
-
-        Counts operator - ( Counts const& other ) const {
-            Counts diff;
-            diff.passed = passed - other.passed;
-            diff.failed = failed - other.failed;
-            diff.failedButOk = failedButOk - other.failedButOk;
-            return diff;
-        }
-        Counts& operator += ( Counts const& other ) {
-            passed += other.passed;
-            failed += other.failed;
-            failedButOk += other.failedButOk;
-            return *this;
-        }
+        Counts operator - ( Counts const& other ) const;
+        Counts& operator += ( Counts const& other );
 
-        std::size_t total() const {
-            return passed + failed + failedButOk;
-        }
-        bool allPassed() const {
-            return failed == 0 && failedButOk == 0;
-        }
-        bool allOk() const {
-            return failed == 0;
-        }
+        std::size_t total() const;
+        bool allPassed() const;
+        bool allOk() const;
 
-        std::size_t passed;
-        std::size_t failed;
-        std::size_t failedButOk;
+        std::size_t passed = 0;
+        std::size_t failed = 0;
+        std::size_t failedButOk = 0;
     };
 
     struct Totals {
 
-        Totals operator - ( Totals const& other ) const {
-            Totals diff;
-            diff.assertions = assertions - other.assertions;
-            diff.testCases = testCases - other.testCases;
-            return diff;
-        }
-
-        Totals delta( Totals const& prevTotals ) const {
-            Totals diff = *this - prevTotals;
-            if( diff.assertions.failed > 0 )
-                ++diff.testCases.failed;
-            else if( diff.assertions.failedButOk > 0 )
-                ++diff.testCases.failedButOk;
-            else
-                ++diff.testCases.passed;
-            return diff;
-        }
+        Totals operator - ( Totals const& other ) const;
+        Totals& operator += ( Totals const& other );
 
-        Totals& operator += ( Totals const& other ) {
-            assertions += other.assertions;
-            testCases += other.testCases;
-            return *this;
-        }
+        Totals delta( Totals const& prevTotals ) const;
 
         Counts assertions;
         Counts testCases;
     };
 }
 
+// end catch_totals.h
+#include <string>
+
 namespace Catch {
 
     struct SectionInfo {
@@ -2259,9 +1594,7 @@ namespace Catch {
     };
 
     struct SectionEndInfo {
-        SectionEndInfo( SectionInfo const& _sectionInfo, Counts const& _prevAssertions, double _durationInSeconds )
-        : sectionInfo( _sectionInfo ), prevAssertions( _prevAssertions ), durationInSeconds( _durationInSeconds )
-        {}
+        SectionEndInfo( SectionInfo const& _sectionInfo, Counts const& _prevAssertions, double _durationInSeconds );
 
         SectionInfo sectionInfo;
         Counts prevAssertions;
@@ -2270,31 +1603,29 @@ namespace Catch {
 
 } // end namespace Catch
 
-// #included from: catch_timer.h
-#define TWOBLUECUBES_CATCH_TIMER_H_INCLUDED
+// end catch_section_info.h
+// start catch_timer.h
 
-#ifdef CATCH_PLATFORM_WINDOWS
-typedef unsigned long long uint64_t;
-#else
-#include <stdint.h>
-#endif
+#include <cstdint>
 
 namespace Catch {
 
+    auto getCurrentNanosecondsSinceEpoch() -> uint64_t;
+    auto getEstimatedClockResolution() -> uint64_t;
+
     class Timer {
+        uint64_t m_nanoseconds = 0;
     public:
-        Timer() : m_ticks( 0 ) {}
         void start();
-        unsigned int getElapsedMicroseconds() const;
-        unsigned int getElapsedMilliseconds() const;
-        double getElapsedSeconds() const;
-
-    private:
-        uint64_t m_ticks;
+        auto getElapsedNanoseconds() const -> unsigned int;
+        auto getElapsedMicroseconds() const -> unsigned int;
+        auto getElapsedMilliseconds() const -> unsigned int;
+        auto getElapsedSeconds() const -> double;
     };
 
 } // namespace Catch
 
+// end catch_timer.h
 #include <string>
 
 namespace Catch {
@@ -2305,7 +1636,7 @@ namespace Catch {
         ~Section();
 
         // This indicates whether the section should be executed or not
-        operator bool() const;
+        explicit operator bool() const;
 
     private:
         SectionInfo m_info;
@@ -2318,204 +1649,62 @@ namespace Catch {
 
 } // end namespace Catch
 
-#ifdef CATCH_CONFIG_VARIADIC_MACROS
     #define INTERNAL_CATCH_SECTION( ... ) \
         if( Catch::Section const& INTERNAL_CATCH_UNIQUE_NAME( catch_internal_Section ) = Catch::SectionInfo( CATCH_INTERNAL_LINEINFO, __VA_ARGS__ ) )
-#else
-    #define INTERNAL_CATCH_SECTION( name, desc ) \
-        if( Catch::Section const& INTERNAL_CATCH_UNIQUE_NAME( catch_internal_Section ) = Catch::SectionInfo( CATCH_INTERNAL_LINEINFO, name, desc ) )
-#endif
 
-// #included from: internal/catch_generators.hpp
-#define TWOBLUECUBES_CATCH_GENERATORS_HPP_INCLUDED
+// end catch_section.h
+// start catch_benchmark.h
 
-#include <iterator>
-#include <vector>
+#include <cstdint>
 #include <string>
-#include <stdlib.h>
 
 namespace Catch {
 
-template<typename T>
-struct IGenerator {
-    virtual ~IGenerator() {}
-    virtual T getValue( std::size_t index ) const = 0;
-    virtual std::size_t size () const = 0;
-};
-
-template<typename T>
-class BetweenGenerator : public IGenerator<T> {
-public:
-    BetweenGenerator( T from, T to ) : m_from( from ), m_to( to ){}
-
-    virtual T getValue( std::size_t index ) const {
-        return m_from+static_cast<int>( index );
-    }
-
-    virtual std::size_t size() const {
-        return static_cast<std::size_t>( 1+m_to-m_from );
-    }
-
-private:
+    class BenchmarkLooper {
 
-    T m_from;
-    T m_to;
-};
-
-template<typename T>
-class ValuesGenerator : public IGenerator<T> {
-public:
-    ValuesGenerator(){}
-
-    void add( T value ) {
-        m_values.push_back( value );
-    }
-
-    virtual T getValue( std::size_t index ) const {
-        return m_values[index];
-    }
-
-    virtual std::size_t size() const {
-        return m_values.size();
-    }
-
-private:
-    std::vector<T> m_values;
-};
-
-template<typename T>
-class CompositeGenerator {
-public:
-    CompositeGenerator() : m_totalSize( 0 ) {}
-
-    // *** Move semantics, similar to auto_ptr ***
-    CompositeGenerator( CompositeGenerator& other )
-    :   m_fileInfo( other.m_fileInfo ),
-        m_totalSize( 0 )
-    {
-        move( other );
-    }
-
-    CompositeGenerator& setFileInfo( const char* fileInfo ) {
-        m_fileInfo = fileInfo;
-        return *this;
-    }
-
-    ~CompositeGenerator() {
-        deleteAll( m_composed );
-    }
-
-    operator T () const {
-        size_t overallIndex = getCurrentContext().getGeneratorIndex( m_fileInfo, m_totalSize );
+        std::string m_name;
+        std::size_t m_count = 0;
+        std::size_t m_iterationsToRun = 1;
+        uint64_t m_resolution;
+        Timer m_timer;
 
-        typename std::vector<const IGenerator<T>*>::const_iterator it = m_composed.begin();
-        typename std::vector<const IGenerator<T>*>::const_iterator itEnd = m_composed.end();
-        for( size_t index = 0; it != itEnd; ++it )
+        static auto getResolution() -> uint64_t;
+    public:
+        // Keep most of this inline as it's on the code path that is being timed
+        BenchmarkLooper( StringRef name )
+        :   m_name( name ),
+            m_resolution( getResolution() )
         {
-            const IGenerator<T>* generator = *it;
-            if( overallIndex >= index && overallIndex < index + generator->size() )
-            {
-                return generator->getValue( overallIndex-index );
-            }
-            index += generator->size();
+            reportStart();
+            m_timer.start();
         }
-        CATCH_INTERNAL_ERROR( "Indexed past end of generated range" );
-        return T(); // Suppress spurious "not all control paths return a value" warning in Visual Studio - if you know how to fix this please do so
-    }
-
-    void add( const IGenerator<T>* generator ) {
-        m_totalSize += generator->size();
-        m_composed.push_back( generator );
-    }
-
-    CompositeGenerator& then( CompositeGenerator& other ) {
-        move( other );
-        return *this;
-    }
-
-    CompositeGenerator& then( T value ) {
-        ValuesGenerator<T>* valuesGen = new ValuesGenerator<T>();
-        valuesGen->add( value );
-        add( valuesGen );
-        return *this;
-    }
-
-private:
-
-    void move( CompositeGenerator& other ) {
-        std::copy( other.m_composed.begin(), other.m_composed.end(), std::back_inserter( m_composed ) );
-        m_totalSize += other.m_totalSize;
-        other.m_composed.clear();
-    }
-
-    std::vector<const IGenerator<T>*> m_composed;
-    std::string m_fileInfo;
-    size_t m_totalSize;
-};
-
-namespace Generators
-{
-    template<typename T>
-    CompositeGenerator<T> between( T from, T to ) {
-        CompositeGenerator<T> generators;
-        generators.add( new BetweenGenerator<T>( from, to ) );
-        return generators;
-    }
-
-    template<typename T>
-    CompositeGenerator<T> values( T val1, T val2 ) {
-        CompositeGenerator<T> generators;
-        ValuesGenerator<T>* valuesGen = new ValuesGenerator<T>();
-        valuesGen->add( val1 );
-        valuesGen->add( val2 );
-        generators.add( valuesGen );
-        return generators;
-    }
 
-    template<typename T>
-    CompositeGenerator<T> values( T val1, T val2, T val3 ){
-        CompositeGenerator<T> generators;
-        ValuesGenerator<T>* valuesGen = new ValuesGenerator<T>();
-        valuesGen->add( val1 );
-        valuesGen->add( val2 );
-        valuesGen->add( val3 );
-        generators.add( valuesGen );
-        return generators;
-    }
-
-    template<typename T>
-    CompositeGenerator<T> values( T val1, T val2, T val3, T val4 ) {
-        CompositeGenerator<T> generators;
-        ValuesGenerator<T>* valuesGen = new ValuesGenerator<T>();
-        valuesGen->add( val1 );
-        valuesGen->add( val2 );
-        valuesGen->add( val3 );
-        valuesGen->add( val4 );
-        generators.add( valuesGen );
-        return generators;
-    }
+        explicit operator bool() {
+            if( m_count < m_iterationsToRun )
+                return true;
+            return needsMoreIterations();
+        }
 
-} // end namespace Generators
+        void increment() {
+            ++m_count;
+        }
 
-using namespace Generators;
+        void reportStart();
+        auto needsMoreIterations() -> bool;
+    };
 
 } // end namespace Catch
 
-#define INTERNAL_CATCH_LINESTR2( line ) #line
-#define INTERNAL_CATCH_LINESTR( line ) INTERNAL_CATCH_LINESTR2( line )
-
-#define INTERNAL_CATCH_GENERATE( expr ) expr.setFileInfo( __FILE__ "(" INTERNAL_CATCH_LINESTR( __LINE__ ) ")" )
+#define BENCHMARK( name ) \
+    for( Catch::BenchmarkLooper looper( name ); looper; looper.increment() )
 
-// #included from: internal/catch_interfaces_exception.h
-#define TWOBLUECUBES_CATCH_INTERFACES_EXCEPTION_H_INCLUDED
-
-#include <string>
-#include <vector>
+// end catch_benchmark.h
+// start catch_interfaces_exception.h
 
-// #included from: catch_interfaces_registry_hub.h
-#define TWOBLUECUBES_CATCH_INTERFACES_REGISTRY_HUB_H_INCLUDED
+// start catch_interfaces_registry_hub.h
 
 #include <string>
+#include <memory>
 
 namespace Catch {
 
@@ -2525,21 +1714,31 @@ namespace Catch {
     struct IExceptionTranslator;
     struct IReporterRegistry;
     struct IReporterFactory;
+    struct ITagAliasRegistry;
+    class StartupExceptionRegistry;
+
+    using IReporterFactoryPtr = std::shared_ptr<IReporterFactory>;
 
     struct IRegistryHub {
         virtual ~IRegistryHub();
 
         virtual IReporterRegistry const& getReporterRegistry() const = 0;
         virtual ITestCaseRegistry const& getTestCaseRegistry() const = 0;
+        virtual ITagAliasRegistry const& getTagAliasRegistry() const = 0;
+
         virtual IExceptionTranslatorRegistry& getExceptionTranslatorRegistry() = 0;
+
+        virtual StartupExceptionRegistry const& getStartupExceptionRegistry() const = 0;
     };
 
     struct IMutableRegistryHub {
         virtual ~IMutableRegistryHub();
-        virtual void registerReporter( std::string const& name, Ptr<IReporterFactory> const& factory ) = 0;
-        virtual void registerListener( Ptr<IReporterFactory> const& factory ) = 0;
+        virtual void registerReporter( std::string const& name, IReporterFactoryPtr const& factory ) = 0;
+        virtual void registerListener( IReporterFactoryPtr const& factory ) = 0;
         virtual void registerTest( TestCase const& testInfo ) = 0;
         virtual void registerTranslator( const IExceptionTranslator* translator ) = 0;
+        virtual void registerTagAlias( std::string const& alias, std::string const& tag, SourceLineInfo const& lineInfo ) = 0;
+        virtual void registerStartupException() noexcept = 0;
     };
 
     IRegistryHub& getRegistryHub();
@@ -2549,12 +1748,21 @@ namespace Catch {
 
 }
 
-namespace Catch {
+// end catch_interfaces_registry_hub.h
+#if defined(CATCH_CONFIG_DISABLE)
+    #define INTERNAL_CATCH_TRANSLATE_EXCEPTION_NO_REG( translatorName, signature) \
+        static std::string translatorName( signature )
+#endif
 
-    typedef std::string(*exceptionTranslateFunction)();
+#include <exception>
+#include <string>
+#include <vector>
+
+namespace Catch {
+    using exceptionTranslateFunction = std::string(*)();
 
     struct IExceptionTranslator;
-    typedef std::vector<const IExceptionTranslator*> ExceptionTranslators;
+    using ExceptionTranslators = std::vector<std::unique_ptr<IExceptionTranslator const>>;
 
     struct IExceptionTranslator {
         virtual ~IExceptionTranslator();
@@ -2576,10 +1784,10 @@ namespace Catch {
             : m_translateFunction( translateFunction )
             {}
 
-            virtual std::string translate( ExceptionTranslators::const_iterator it, ExceptionTranslators::const_iterator itEnd ) const CATCH_OVERRIDE {
+            std::string translate( ExceptionTranslators::const_iterator it, ExceptionTranslators::const_iterator itEnd ) const override {
                 try {
                     if( it == itEnd )
-                        throw;
+                        std::rethrow_exception(std::current_exception());
                     else
                         return (*it)->translate( it+1, itEnd );
                 }
@@ -2609,195 +1817,557 @@ namespace Catch {
 
 #define INTERNAL_CATCH_TRANSLATE_EXCEPTION( signature ) INTERNAL_CATCH_TRANSLATE_EXCEPTION2( INTERNAL_CATCH_UNIQUE_NAME( catch_internal_ExceptionTranslator ), signature )
 
-// #included from: internal/catch_approx.hpp
-#define TWOBLUECUBES_CATCH_APPROX_HPP_INCLUDED
+// end catch_interfaces_exception.h
+// start catch_approx.h
 
-#include <cmath>
-#include <limits>
+// start catch_enforce.h
+
+#include <sstream>
+#include <stdexcept>
+
+#define CATCH_PREPARE_EXCEPTION( type, msg ) \
+    type( static_cast<std::ostringstream&&>( std::ostringstream() << msg ).str() )
+#define CATCH_INTERNAL_ERROR( msg ) \
+    throw CATCH_PREPARE_EXCEPTION( std::logic_error, CATCH_INTERNAL_LINEINFO << ": Internal Catch error: " << msg);
+#define CATCH_ERROR( msg ) \
+    throw CATCH_PREPARE_EXCEPTION( std::domain_error, msg )
+#define CATCH_ENFORCE( condition, msg ) \
+    do{ if( !(condition) ) CATCH_ERROR( msg ); } while(false)
+
+// end catch_enforce.h
+#include <type_traits>
 
 namespace Catch {
 namespace Detail {
 
     class Approx {
-    public:
-        explicit Approx ( double value )
-        :   m_epsilon( std::numeric_limits<float>::epsilon()*100 ),
-            m_scale( 1.0 ),
-            m_value( value )
-        {}
+    private:
+        bool equalityComparisonImpl(double other) const;
 
-        Approx( Approx const& other )
-        :   m_epsilon( other.m_epsilon ),
-            m_scale( other.m_scale ),
-            m_value( other.m_value )
-        {}
+    public:
+        explicit Approx ( double value );
 
-        static Approx custom() {
-            return Approx( 0 );
-        }
+        static Approx custom();
 
-        Approx operator()( double value ) {
-            Approx approx( value );
+        template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+        Approx operator()( T const& value ) {
+            Approx approx( static_cast<double>(value) );
             approx.epsilon( m_epsilon );
+            approx.margin( m_margin );
             approx.scale( m_scale );
             return approx;
         }
 
-        friend bool operator == ( double lhs, Approx const& rhs ) {
-            // Thanks to Richard Harris for his help refining this formula
-            return fabs( lhs - rhs.m_value ) < rhs.m_epsilon * (rhs.m_scale + (std::max)( fabs(lhs), fabs(rhs.m_value) ) );
+        template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+        explicit Approx( T const& value ): Approx(static_cast<double>(value))
+        {}
+
+        template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+        friend bool operator == ( const T& lhs, Approx const& rhs ) {
+            auto lhs_v = static_cast<double>(lhs);
+            return rhs.equalityComparisonImpl(lhs_v);
         }
 
-        friend bool operator == ( Approx const& lhs, double rhs ) {
+        template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+        friend bool operator == ( Approx const& lhs, const T& rhs ) {
             return operator==( rhs, lhs );
         }
 
-        friend bool operator != ( double lhs, Approx const& rhs ) {
+        template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+        friend bool operator != ( T const& lhs, Approx const& rhs ) {
             return !operator==( lhs, rhs );
         }
 
-        friend bool operator != ( Approx const& lhs, double rhs ) {
+        template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+        friend bool operator != ( Approx const& lhs, T const& rhs ) {
             return !operator==( rhs, lhs );
         }
 
-        Approx& epsilon( double newEpsilon ) {
-            m_epsilon = newEpsilon;
+        template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+        friend bool operator <= ( T const& lhs, Approx const& rhs ) {
+            return static_cast<double>(lhs) < rhs.m_value || lhs == rhs;
+        }
+
+        template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+        friend bool operator <= ( Approx const& lhs, T const& rhs ) {
+            return lhs.m_value < static_cast<double>(rhs) || lhs == rhs;
+        }
+
+        template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+        friend bool operator >= ( T const& lhs, Approx const& rhs ) {
+            return static_cast<double>(lhs) > rhs.m_value || lhs == rhs;
+        }
+
+        template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+        friend bool operator >= ( Approx const& lhs, T const& rhs ) {
+            return lhs.m_value > static_cast<double>(rhs) || lhs == rhs;
+        }
+
+        template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+        Approx& epsilon( T const& newEpsilon ) {
+            double epsilonAsDouble = static_cast<double>(newEpsilon);
+            CATCH_ENFORCE(epsilonAsDouble >= 0 && epsilonAsDouble <= 1.0,
+                          "Invalid Approx::epsilon: " << epsilonAsDouble
+                          << ", Approx::epsilon has to be between 0 and 1");
+            m_epsilon = epsilonAsDouble;
             return *this;
         }
 
-        Approx& scale( double newScale ) {
-            m_scale = newScale;
+        template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+        Approx& margin( T const& newMargin ) {
+            double marginAsDouble = static_cast<double>(newMargin);
+            CATCH_ENFORCE(marginAsDouble >= 0,
+                          "Invalid Approx::margin: " << marginAsDouble
+                          << ", Approx::Margin has to be non-negative.");
+            m_margin = marginAsDouble;
             return *this;
         }
 
-        std::string toString() const {
-            std::ostringstream oss;
-            oss << "Approx( " << Catch::toString( m_value ) << " )";
-            return oss.str();
+        template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
+        Approx& scale( T const& newScale ) {
+            m_scale = static_cast<double>(newScale);
+            return *this;
         }
 
+        std::string toString() const;
+
     private:
         double m_epsilon;
+        double m_margin;
         double m_scale;
         double m_value;
     };
 }
 
 template<>
-inline std::string toString<Detail::Approx>( Detail::Approx const& value ) {
-    return value.toString();
-}
+struct StringMaker<Catch::Detail::Approx> {
+    static std::string convert(Catch::Detail::Approx const& value);
+};
 
 } // end namespace Catch
 
-// #included from: internal/catch_interfaces_tag_alias_registry.h
-#define TWOBLUECUBES_CATCH_INTERFACES_TAG_ALIAS_REGISTRY_H_INCLUDED
-
-// #included from: catch_tag_alias.h
-#define TWOBLUECUBES_CATCH_TAG_ALIAS_H_INCLUDED
+// end catch_approx.h
+// start catch_string_manip.h
 
 #include <string>
+#include <iosfwd>
 
 namespace Catch {
 
-    struct TagAlias {
-        TagAlias( std::string _tag, SourceLineInfo _lineInfo ) : tag( _tag ), lineInfo( _lineInfo ) {}
+    bool startsWith( std::string const& s, std::string const& prefix );
+    bool startsWith( std::string const& s, char prefix );
+    bool endsWith( std::string const& s, std::string const& suffix );
+    bool endsWith( std::string const& s, char suffix );
+    bool contains( std::string const& s, std::string const& infix );
+    void toLowerInPlace( std::string& s );
+    std::string toLower( std::string const& s );
+    std::string trim( std::string const& str );
+    bool replaceInPlace( std::string& str, std::string const& replaceThis, std::string const& withThis );
 
-        std::string tag;
-        SourceLineInfo lineInfo;
-    };
+    struct pluralise {
+        pluralise( std::size_t count, std::string const& label );
 
-    struct RegistrarForTagAliases {
-        RegistrarForTagAliases( char const* alias, char const* tag, SourceLineInfo const& lineInfo );
+        friend std::ostream& operator << ( std::ostream& os, pluralise const& pluraliser );
+
+        std::size_t m_count;
+        std::string m_label;
     };
+}
 
-} // end namespace Catch
+// end catch_string_manip.h
+#ifndef CATCH_CONFIG_DISABLE_MATCHERS
+// start catch_capture_matchers.h
 
-#define CATCH_REGISTER_TAG_ALIAS( alias, spec ) namespace{ Catch::RegistrarForTagAliases INTERNAL_CATCH_UNIQUE_NAME( AutoRegisterTagAlias )( alias, spec, CATCH_INTERNAL_LINEINFO ); }
-// #included from: catch_option.hpp
-#define TWOBLUECUBES_CATCH_OPTION_HPP_INCLUDED
+// start catch_matchers.h
+
+#include <string>
+#include <vector>
 
 namespace Catch {
+namespace Matchers {
+    namespace Impl {
 
-    // An optional type
-    template<typename T>
-    class Option {
-    public:
-        Option() : nullableValue( CATCH_NULL ) {}
-        Option( T const& _value )
-        : nullableValue( new( storage ) T( _value ) )
-        {}
-        Option( Option const& _other )
-        : nullableValue( _other ? new( storage ) T( *_other ) : CATCH_NULL )
-        {}
+        template<typename ArgT> struct MatchAllOf;
+        template<typename ArgT> struct MatchAnyOf;
+        template<typename ArgT> struct MatchNotOf;
 
-        ~Option() {
-            reset();
-        }
+        class MatcherUntypedBase {
+        public:
+            MatcherUntypedBase() = default;
+            MatcherUntypedBase ( MatcherUntypedBase const& ) = default;
+            MatcherUntypedBase& operator = ( MatcherUntypedBase const& ) = delete;
+            std::string toString() const;
 
-        Option& operator= ( Option const& _other ) {
-            if( &_other != this ) {
-                reset();
-                if( _other )
-                    nullableValue = new( storage ) T( *_other );
+        protected:
+            virtual ~MatcherUntypedBase();
+            virtual std::string describe() const = 0;
+            mutable std::string m_cachedToString;
+        };
+
+        template<typename ObjectT>
+        struct MatcherMethod {
+            virtual bool match( ObjectT const& arg ) const = 0;
+        };
+        template<typename PtrT>
+        struct MatcherMethod<PtrT*> {
+            virtual bool match( PtrT* arg ) const = 0;
+        };
+
+        template<typename ObjectT, typename ComparatorT = ObjectT>
+        struct MatcherBase : MatcherUntypedBase, MatcherMethod<ObjectT> {
+
+            MatchAllOf<ComparatorT> operator && ( MatcherBase const& other ) const;
+            MatchAnyOf<ComparatorT> operator || ( MatcherBase const& other ) const;
+            MatchNotOf<ComparatorT> operator ! () const;
+        };
+
+        template<typename ArgT>
+        struct MatchAllOf : MatcherBase<ArgT> {
+            bool match( ArgT const& arg ) const override {
+                for( auto matcher : m_matchers ) {
+                    if (!matcher->match(arg))
+                        return false;
+                }
+                return true;
             }
-            return *this;
+            std::string describe() const override {
+                std::string description;
+                description.reserve( 4 + m_matchers.size()*32 );
+                description += "( ";
+                bool first = true;
+                for( auto matcher : m_matchers ) {
+                    if( first )
+                        first = false;
+                    else
+                        description += " and ";
+                    description += matcher->toString();
+                }
+                description += " )";
+                return description;
+            }
+
+            MatchAllOf<ArgT>& operator && ( MatcherBase<ArgT> const& other ) {
+                m_matchers.push_back( &other );
+                return *this;
+            }
+
+            std::vector<MatcherBase<ArgT> const*> m_matchers;
+        };
+        template<typename ArgT>
+        struct MatchAnyOf : MatcherBase<ArgT> {
+
+            bool match( ArgT const& arg ) const override {
+                for( auto matcher : m_matchers ) {
+                    if (matcher->match(arg))
+                        return true;
+                }
+                return false;
+            }
+            std::string describe() const override {
+                std::string description;
+                description.reserve( 4 + m_matchers.size()*32 );
+                description += "( ";
+                bool first = true;
+                for( auto matcher : m_matchers ) {
+                    if( first )
+                        first = false;
+                    else
+                        description += " or ";
+                    description += matcher->toString();
+                }
+                description += " )";
+                return description;
+            }
+
+            MatchAnyOf<ArgT>& operator || ( MatcherBase<ArgT> const& other ) {
+                m_matchers.push_back( &other );
+                return *this;
+            }
+
+            std::vector<MatcherBase<ArgT> const*> m_matchers;
+        };
+
+        template<typename ArgT>
+        struct MatchNotOf : MatcherBase<ArgT> {
+
+            MatchNotOf( MatcherBase<ArgT> const& underlyingMatcher ) : m_underlyingMatcher( underlyingMatcher ) {}
+
+            bool match( ArgT const& arg ) const override {
+                return !m_underlyingMatcher.match( arg );
+            }
+
+            std::string describe() const override {
+                return "not " + m_underlyingMatcher.toString();
+            }
+            MatcherBase<ArgT> const& m_underlyingMatcher;
+        };
+
+        template<typename ObjectT, typename ComparatorT>
+        MatchAllOf<ComparatorT> MatcherBase<ObjectT, ComparatorT>::operator && ( MatcherBase const& other ) const {
+            return MatchAllOf<ComparatorT>() && *this && other;
         }
-        Option& operator = ( T const& _value ) {
-            reset();
-            nullableValue = new( storage ) T( _value );
-            return *this;
+        template<typename ObjectT, typename ComparatorT>
+        MatchAnyOf<ComparatorT> MatcherBase<ObjectT, ComparatorT>::operator || ( MatcherBase const& other ) const {
+            return MatchAnyOf<ComparatorT>() || *this || other;
         }
-
-        void reset() {
-            if( nullableValue )
-                nullableValue->~T();
-            nullableValue = CATCH_NULL;
+        template<typename ObjectT, typename ComparatorT>
+        MatchNotOf<ComparatorT> MatcherBase<ObjectT, ComparatorT>::operator ! () const {
+            return MatchNotOf<ComparatorT>( *this );
         }
 
-        T& operator*() { return *nullableValue; }
-        T const& operator*() const { return *nullableValue; }
-        T* operator->() { return nullableValue; }
-        const T* operator->() const { return nullableValue; }
+    } // namespace Impl
 
-        T valueOr( T const& defaultValue ) const {
-            return nullableValue ? *nullableValue : defaultValue;
-        }
+} // namespace Matchers
 
-        bool some() const { return nullableValue != CATCH_NULL; }
-        bool none() const { return nullableValue == CATCH_NULL; }
+using namespace Matchers;
+using Matchers::Impl::MatcherBase;
 
-        bool operator !() const { return nullableValue == CATCH_NULL; }
-        operator SafeBool::type() const {
-            return SafeBool::makeSafe( some() );
-        }
+} // namespace Catch
 
-    private:
-        T* nullableValue;
-        char storage[sizeof(T)];
-    };
+// end catch_matchers.h
+// start catch_matchers_string.h
 
-} // end namespace Catch
+#include <string>
 
 namespace Catch {
+namespace Matchers {
 
-    struct ITagAliasRegistry {
-        virtual ~ITagAliasRegistry();
-        virtual Option<TagAlias> find( std::string const& alias ) const = 0;
-        virtual std::string expandAliases( std::string const& unexpandedTestSpec ) const = 0;
+    namespace StdString {
 
-        static ITagAliasRegistry const& get();
+        struct CasedString
+        {
+            CasedString( std::string const& str, CaseSensitive::Choice caseSensitivity );
+            std::string adjustString( std::string const& str ) const;
+            std::string caseSensitivitySuffix() const;
+
+            CaseSensitive::Choice m_caseSensitivity;
+            std::string m_str;
+        };
+
+        struct StringMatcherBase : MatcherBase<std::string> {
+            StringMatcherBase( std::string const& operation, CasedString const& comparator );
+            std::string describe() const override;
+
+            CasedString m_comparator;
+            std::string m_operation;
+        };
+
+        struct EqualsMatcher : StringMatcherBase {
+            EqualsMatcher( CasedString const& comparator );
+            bool match( std::string const& source ) const override;
+        };
+        struct ContainsMatcher : StringMatcherBase {
+            ContainsMatcher( CasedString const& comparator );
+            bool match( std::string const& source ) const override;
+        };
+        struct StartsWithMatcher : StringMatcherBase {
+            StartsWithMatcher( CasedString const& comparator );
+            bool match( std::string const& source ) const override;
+        };
+        struct EndsWithMatcher : StringMatcherBase {
+            EndsWithMatcher( CasedString const& comparator );
+            bool match( std::string const& source ) const override;
+        };
+
+    } // namespace StdString
+
+    // The following functions create the actual matcher objects.
+    // This allows the types to be inferred
+
+    StdString::EqualsMatcher Equals( std::string const& str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes );
+    StdString::ContainsMatcher Contains( std::string const& str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes );
+    StdString::EndsWithMatcher EndsWith( std::string const& str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes );
+    StdString::StartsWithMatcher StartsWith( std::string const& str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes );
+
+} // namespace Matchers
+} // namespace Catch
+
+// end catch_matchers_string.h
+// start catch_matchers_vector.h
+
+namespace Catch {
+namespace Matchers {
+
+    namespace Vector {
+
+        template<typename T>
+        struct ContainsElementMatcher : MatcherBase<std::vector<T>, T> {
+
+            ContainsElementMatcher(T const &comparator) : m_comparator( comparator) {}
+
+            bool match(std::vector<T> const &v) const override {
+                for (auto const& el : v) {
+                    if (el == m_comparator) {
+                        return true;
+                    }
+                }
+                return false;
+            }
+
+            std::string describe() const override {
+                return "Contains: " + ::Catch::Detail::stringify( m_comparator );
+            }
+
+            T const& m_comparator;
+        };
+
+        template<typename T>
+        struct ContainsMatcher : MatcherBase<std::vector<T>, std::vector<T> > {
+
+            ContainsMatcher(std::vector<T> const &comparator) : m_comparator( comparator ) {}
+
+            bool match(std::vector<T> const &v) const override {
+                // !TBD: see note in EqualsMatcher
+                if (m_comparator.size() > v.size())
+                    return false;
+                for (auto const& comparator : m_comparator) {
+                    auto present = false;
+                    for (const auto& el : v) {
+                        if (el == comparator) {
+                            present = true;
+                            break;
+                        }
+                    }
+                    if (!present) {
+                        return false;
+                    }
+                }
+                return true;
+            }
+            std::string describe() const override {
+                return "Contains: " + ::Catch::Detail::stringify( m_comparator );
+            }
+
+            std::vector<T> const& m_comparator;
+        };
+
+        template<typename T>
+        struct EqualsMatcher : MatcherBase<std::vector<T>, std::vector<T> > {
+
+            EqualsMatcher(std::vector<T> const &comparator) : m_comparator( comparator ) {}
+
+            bool match(std::vector<T> const &v) const override {
+                // !TBD: This currently works if all elements can be compared using !=
+                // - a more general approach would be via a compare template that defaults
+                // to using !=. but could be specialised for, e.g. std::vector<T> etc
+                // - then just call that directly
+                if (m_comparator.size() != v.size())
+                    return false;
+                for (std::size_t i = 0; i < v.size(); ++i)
+                    if (m_comparator[i] != v[i])
+                        return false;
+                return true;
+            }
+            std::string describe() const override {
+                return "Equals: " + ::Catch::Detail::stringify( m_comparator );
+            }
+            std::vector<T> const& m_comparator;
+        };
+
+    } // namespace Vector
+
+    // The following functions create the actual matcher objects.
+    // This allows the types to be inferred
+
+    template<typename T>
+    Vector::ContainsMatcher<T> Contains( std::vector<T> const& comparator ) {
+        return Vector::ContainsMatcher<T>( comparator );
+    }
+
+    template<typename T>
+    Vector::ContainsElementMatcher<T> VectorContains( T const& comparator ) {
+        return Vector::ContainsElementMatcher<T>( comparator );
+    }
+
+    template<typename T>
+    Vector::EqualsMatcher<T> Equals( std::vector<T> const& comparator ) {
+        return Vector::EqualsMatcher<T>( comparator );
+    }
+
+} // namespace Matchers
+} // namespace Catch
+
+// end catch_matchers_vector.h
+namespace Catch {
+
+    template<typename ArgT, typename MatcherT>
+    class MatchExpr : public ITransientExpression {
+        ArgT const& m_arg;
+        MatcherT m_matcher;
+        StringRef m_matcherString;
+        bool m_result;
+    public:
+        MatchExpr( ArgT const& arg, MatcherT const& matcher, StringRef matcherString )
+        :   m_arg( arg ),
+            m_matcher( matcher ),
+            m_matcherString( matcherString ),
+            m_result( matcher.match( arg ) )
+        {}
+
+        auto isBinaryExpression() const -> bool  override { return true; }
+        auto getResult() const -> bool override { return m_result; }
+
+        void streamReconstructedExpression( std::ostream &os ) const override {
+            auto matcherAsString = m_matcher.toString();
+            os << Catch::Detail::stringify( m_arg ) << ' ';
+            if( matcherAsString == Detail::unprintableString )
+                os << m_matcherString;
+            else
+                os << matcherAsString;
+        }
     };
 
-} // end namespace Catch
+    using StringMatcher = Matchers::Impl::MatcherBase<std::string>;
+
+    void handleExceptionMatchExpr( AssertionHandler& handler, StringMatcher const& matcher, StringRef matcherString  );
+
+    template<typename ArgT, typename MatcherT>
+    auto makeMatchExpr( ArgT const& arg, MatcherT const& matcher, StringRef matcherString  ) -> MatchExpr<ArgT, MatcherT> {
+        return MatchExpr<ArgT, MatcherT>( arg, matcher, matcherString );
+    }
+
+} // namespace Catch
+
+///////////////////////////////////////////////////////////////////////////////
+#define INTERNAL_CHECK_THAT( macroName, matcher, resultDisposition, arg ) \
+    do { \
+        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(arg) ", " CATCH_INTERNAL_STRINGIFY(matcher), resultDisposition ); \
+        INTERNAL_CATCH_TRY( catchAssertionHandler ) { \
+            catchAssertionHandler.handle( Catch::makeMatchExpr( arg, matcher, #matcher ) ); \
+        } INTERNAL_CATCH_CATCH( catchAssertionHandler ) \
+        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
+    } while( Catch::alwaysFalse() )
+
+///////////////////////////////////////////////////////////////////////////////
+#define INTERNAL_CATCH_THROWS_MATCHES( macroName, exceptionType, resultDisposition, matcher, ... ) \
+    do { \
+        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__) ", " CATCH_INTERNAL_STRINGIFY(exceptionType) ", " CATCH_INTERNAL_STRINGIFY(matcher), resultDisposition ); \
+        if( catchAssertionHandler.allowThrows() ) \
+            try { \
+                static_cast<void>(__VA_ARGS__ ); \
+                catchAssertionHandler.handle( Catch::ResultWas::DidntThrowException ); \
+            } \
+            catch( exceptionType const& ex ) { \
+                catchAssertionHandler.handle( Catch::makeMatchExpr( ex, matcher, #matcher ) ); \
+            } \
+            catch( ... ) { \
+                catchAssertionHandler.useActiveException(); \
+            } \
+        else \
+            catchAssertionHandler.handle( Catch::ResultWas::Ok ); \
+        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
+    } while( Catch::alwaysFalse() )
+
+// end catch_capture_matchers.h
+#endif
 
 // These files are included here so the single_include script doesn't put them
 // in the conditionally compiled sections
-// #included from: internal/catch_test_case_info.h
-#define TWOBLUECUBES_CATCH_TEST_CASE_INFO_H_INCLUDED
+// start catch_test_case_info.h
 
 #include <string>
-#include <set>
+#include <vector>
+#include <memory>
 
 #ifdef __clang__
 #pragma clang diagnostic push
@@ -2806,7 +2376,7 @@ namespace Catch {
 
 namespace Catch {
 
-    struct ITestCase;
+    struct ITestInvoker;
 
     struct TestCaseInfo {
         enum SpecialProperties{
@@ -2814,30 +2384,31 @@ namespace Catch {
             IsHidden = 1 << 1,
             ShouldFail = 1 << 2,
             MayFail = 1 << 3,
-            Throws = 1 << 4
+            Throws = 1 << 4,
+            NonPortable = 1 << 5,
+            Benchmark = 1 << 6
         };
 
         TestCaseInfo(   std::string const& _name,
                         std::string const& _className,
                         std::string const& _description,
-                        std::set<std::string> const& _tags,
+                        std::vector<std::string> const& _tags,
                         SourceLineInfo const& _lineInfo );
 
-        TestCaseInfo( TestCaseInfo const& other );
-
-        friend void setTags( TestCaseInfo& testCaseInfo, std::set<std::string> const& tags );
+        friend void setTags( TestCaseInfo& testCaseInfo, std::vector<std::string> tags );
 
         bool isHidden() const;
         bool throws() const;
         bool okToFail() const;
         bool expectedToFail() const;
 
+        std::string tagsAsString() const;
+
         std::string name;
         std::string className;
         std::string description;
-        std::set<std::string> tags;
-        std::set<std::string> lcaseTags;
-        std::string tagsAsString;
+        std::vector<std::string> tags;
+        std::vector<std::string> lcaseTags;
         SourceLineInfo lineInfo;
         SpecialProperties properties;
     };
@@ -2845,8 +2416,7 @@ namespace Catch {
     class TestCase : public TestCaseInfo {
     public:
 
-        TestCase( ITestCase* testCase, TestCaseInfo const& info );
-        TestCase( TestCase const& other );
+        TestCase( ITestInvoker* testCase, TestCaseInfo const& info );
 
         TestCase withName( std::string const& _newName ) const;
 
@@ -2854,16 +2424,14 @@ namespace Catch {
 
         TestCaseInfo const& getTestCaseInfo() const;
 
-        void swap( TestCase& other );
         bool operator == ( TestCase const& other ) const;
         bool operator < ( TestCase const& other ) const;
-        TestCase& operator = ( TestCase const& other );
 
     private:
-        Ptr<ITestCase> test;
+        std::shared_ptr<ITestInvoker> test;
     };
 
-    TestCase makeTestCase(  ITestCase* testCase,
+    TestCase makeTestCase(  ITestInvoker* testCase,
                             std::string const& className,
                             std::string const& name,
                             std::string const& description,
@@ -2874,10 +2442,21 @@ namespace Catch {
 #pragma clang diagnostic pop
 #endif
 
+// end catch_test_case_info.h
+// start catch_interfaces_runner.h
+
+namespace Catch {
+
+    struct IRunner {
+        virtual ~IRunner();
+        virtual bool aborting() const = 0;
+    };
+}
+
+// end catch_interfaces_runner.h
 
 #ifdef __OBJC__
-// #included from: internal/catch_objc.hpp
-#define TWOBLUECUBES_CATCH_OBJC_HPP_INCLUDED
+// start catch_objc.hpp
 
 #import <objc/runtime.h>
 
@@ -2901,7 +2480,7 @@ namespace Catch {
 
 namespace Catch {
 
-    class OcMethod : public SharedImpl<ITestCase> {
+    class OcMethod : public ITestInvoker {
 
     public:
         OcMethod( Class cls, SEL sel ) : m_cls( cls ), m_sel( sel ) {}
@@ -2937,9 +2516,9 @@ namespace Catch {
         }
     }
 
-    inline size_t registerTestMethods() {
-        size_t noTestMethods = 0;
-        int noClasses = objc_getClassList( CATCH_NULL, 0 );
+    inline std::size_t registerTestMethods() {
+        std::size_t noTestMethods = 0;
+        int noClasses = objc_getClassList( nullptr, 0 );
 
         Class* classes = (CATCH_UNSAFE_UNRETAINED Class *)malloc( sizeof(Class) * noClasses);
         objc_getClassList( classes, noClasses );
@@ -2958,7 +2537,7 @@ namespace Catch {
                         std::string desc = Detail::getAnnotation( cls, "Description", testCaseName );
                         const char* className = class_getName( cls );
 
-                        getMutableRegistryHub().registerTest( makeTestCase( new OcMethod( cls, selector ), className, name.c_str(), desc.c_str(), SourceLineInfo() ) );
+                        getMutableRegistryHub().registerTest( makeTestCase( new OcMethod( cls, selector ), className, name.c_str(), desc.c_str(), SourceLineInfo("",0) ) );
                         noTestMethods++;
                     }
                 }
@@ -2968,69 +2547,74 @@ namespace Catch {
         return noTestMethods;
     }
 
+#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
+
     namespace Matchers {
         namespace Impl {
         namespace NSStringMatchers {
 
-            template<typename MatcherT>
-            struct StringHolder : MatcherImpl<MatcherT, NSString*>{
+            struct StringHolder : MatcherBase<NSString*>{
                 StringHolder( NSString* substr ) : m_substr( [substr copy] ){}
                 StringHolder( StringHolder const& other ) : m_substr( [other.m_substr copy] ){}
                 StringHolder() {
                     arcSafeRelease( m_substr );
                 }
 
-                NSString* m_substr;
+                bool match( NSString* arg ) const override {
+                    return false;
+                }
+
+                NSString* CATCH_ARC_STRONG m_substr;
             };
 
-            struct Equals : StringHolder<Equals> {
+            struct Equals : StringHolder {
                 Equals( NSString* substr ) : StringHolder( substr ){}
 
-                virtual bool match( ExpressionType const& str ) const {
+                bool match( NSString* str ) const override {
                     return  (str != nil || m_substr == nil ) &&
                             [str isEqualToString:m_substr];
                 }
 
-                virtual std::string toString() const {
-                    return "equals string: " + Catch::toString( m_substr );
+                std::string describe() const override {
+                    return "equals string: " + Catch::Detail::stringify( m_substr );
                 }
             };
 
-            struct Contains : StringHolder<Contains> {
+            struct Contains : StringHolder {
                 Contains( NSString* substr ) : StringHolder( substr ){}
 
-                virtual bool match( ExpressionType const& str ) const {
+                bool match( NSString* str ) const {
                     return  (str != nil || m_substr == nil ) &&
                             [str rangeOfString:m_substr].location != NSNotFound;
                 }
 
-                virtual std::string toString() const {
-                    return "contains string: " + Catch::toString( m_substr );
+                std::string describe() const override {
+                    return "contains string: " + Catch::Detail::stringify( m_substr );
                 }
             };
 
-            struct StartsWith : StringHolder<StartsWith> {
+            struct StartsWith : StringHolder {
                 StartsWith( NSString* substr ) : StringHolder( substr ){}
 
-                virtual bool match( ExpressionType const& str ) const {
+                bool match( NSString* str ) const override {
                     return  (str != nil || m_substr == nil ) &&
                             [str rangeOfString:m_substr].location == 0;
                 }
 
-                virtual std::string toString() const {
-                    return "starts with: " + Catch::toString( m_substr );
+                std::string describe() const override {
+                    return "starts with: " + Catch::Detail::stringify( m_substr );
                 }
             };
-            struct EndsWith : StringHolder<EndsWith> {
+            struct EndsWith : StringHolder {
                 EndsWith( NSString* substr ) : StringHolder( substr ){}
 
-                virtual bool match( ExpressionType const& str ) const {
+                bool match( NSString* str ) const override {
                     return  (str != nil || m_substr == nil ) &&
                             [str rangeOfString:m_substr].location == [str length] - [m_substr length];
                 }
 
-                virtual std::string toString() const {
-                    return "ends with: " + Catch::toString( m_substr );
+                std::string describe() const override {
+                    return "ends with: " + Catch::Detail::stringify( m_substr );
                 }
             };
 
@@ -3053,61 +2637,52 @@ namespace Catch {
 
     using namespace Matchers;
 
+#endif // CATCH_CONFIG_DISABLE_MATCHERS
+
 } // namespace Catch
 
 ///////////////////////////////////////////////////////////////////////////////
-#define OC_TEST_CASE( name, desc )\
-+(NSString*) INTERNAL_CATCH_UNIQUE_NAME( Catch_Name_test ) \
-{\
+#define OC_MAKE_UNIQUE_NAME( root, uniqueSuffix ) root##uniqueSuffix
+#define OC_TEST_CASE2( name, desc, uniqueSuffix ) \
++(NSString*) OC_MAKE_UNIQUE_NAME( Catch_Name_test_, uniqueSuffix ) \
+{ \
 return @ name; \
-}\
-+(NSString*) INTERNAL_CATCH_UNIQUE_NAME( Catch_Description_test ) \
+} \
++(NSString*) OC_MAKE_UNIQUE_NAME( Catch_Description_test_, uniqueSuffix ) \
 { \
 return @ desc; \
 } \
--(void) INTERNAL_CATCH_UNIQUE_NAME( Catch_TestCase_test )
+-(void) OC_MAKE_UNIQUE_NAME( Catch_TestCase_test_, uniqueSuffix )
 
-#endif
-
-#ifdef CATCH_IMPL
-// #included from: internal/catch_impl.hpp
-#define TWOBLUECUBES_CATCH_IMPL_HPP_INCLUDED
+#define OC_TEST_CASE( name, desc ) OC_TEST_CASE2( name, desc, __LINE__ )
 
-// Collect all the implementation files together here
-// These are the equivalent of what would usually be cpp files
-
-#ifdef __clang__
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wweak-vtables"
+// end catch_objc.hpp
 #endif
 
-// #included from: ../catch_session.hpp
-#define TWOBLUECUBES_CATCH_RUNNER_HPP_INCLUDED
+#ifdef CATCH_CONFIG_EXTERNAL_INTERFACES
+// start catch_external_interfaces.h
+
+// start catch_reporter_bases.hpp
 
-// #included from: internal/catch_commandline.hpp
-#define TWOBLUECUBES_CATCH_COMMANDLINE_HPP_INCLUDED
+// start catch_interfaces_reporter.h
 
-// #included from: catch_config.hpp
-#define TWOBLUECUBES_CATCH_CONFIG_HPP_INCLUDED
+// start catch_config.hpp
 
-// #included from: catch_test_spec_parser.hpp
-#define TWOBLUECUBES_CATCH_TEST_SPEC_PARSER_HPP_INCLUDED
+// start catch_test_spec_parser.h
 
 #ifdef __clang__
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wpadded"
 #endif
 
-// #included from: catch_test_spec.hpp
-#define TWOBLUECUBES_CATCH_TEST_SPEC_HPP_INCLUDED
+// start catch_test_spec.h
 
 #ifdef __clang__
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wpadded"
 #endif
 
-// #included from: catch_wildcard_pattern.hpp
-#define TWOBLUECUBES_CATCH_WILDCARD_PATTERN_HPP_INCLUDED
+// start catch_wildcard_pattern.h
 
 namespace Catch
 {
@@ -3121,118 +2696,68 @@ namespace Catch
 
     public:
 
-        WildcardPattern( std::string const& pattern, CaseSensitive::Choice caseSensitivity )
-        :   m_caseSensitivity( caseSensitivity ),
-            m_wildcard( NoWildcard ),
-            m_pattern( adjustCase( pattern ) )
-        {
-            if( startsWith( m_pattern, "*" ) ) {
-                m_pattern = m_pattern.substr( 1 );
-                m_wildcard = WildcardAtStart;
-            }
-            if( endsWith( m_pattern, "*" ) ) {
-                m_pattern = m_pattern.substr( 0, m_pattern.size()-1 );
-                m_wildcard = static_cast<WildcardPosition>( m_wildcard | WildcardAtEnd );
-            }
-        }
-        virtual ~WildcardPattern();
-        virtual bool matches( std::string const& str ) const {
-            switch( m_wildcard ) {
-                case NoWildcard:
-                    return m_pattern == adjustCase( str );
-                case WildcardAtStart:
-                    return endsWith( adjustCase( str ), m_pattern );
-                case WildcardAtEnd:
-                    return startsWith( adjustCase( str ), m_pattern );
-                case WildcardAtBothEnds:
-                    return contains( adjustCase( str ), m_pattern );
-            }
+        WildcardPattern( std::string const& pattern, CaseSensitive::Choice caseSensitivity );
+        virtual ~WildcardPattern() = default;
+        virtual bool matches( std::string const& str ) const;
 
-#ifdef __clang__
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wunreachable-code"
-#endif
-            throw std::logic_error( "Unknown enum" );
-#ifdef __clang__
-#pragma clang diagnostic pop
-#endif
-        }
     private:
-        std::string adjustCase( std::string const& str ) const {
-            return m_caseSensitivity == CaseSensitive::No ? toLower( str ) : str;
-        }
+        std::string adjustCase( std::string const& str ) const;
         CaseSensitive::Choice m_caseSensitivity;
-        WildcardPosition m_wildcard;
+        WildcardPosition m_wildcard = NoWildcard;
         std::string m_pattern;
     };
 }
 
+// end catch_wildcard_pattern.h
 #include <string>
 #include <vector>
+#include <memory>
 
 namespace Catch {
 
     class TestSpec {
-        struct Pattern : SharedImpl<> {
+        struct Pattern {
             virtual ~Pattern();
             virtual bool matches( TestCaseInfo const& testCase ) const = 0;
         };
+        using PatternPtr = std::shared_ptr<Pattern>;
+
         class NamePattern : public Pattern {
         public:
-            NamePattern( std::string const& name )
-            : m_wildcardPattern( toLower( name ), CaseSensitive::No )
-            {}
+            NamePattern( std::string const& name );
             virtual ~NamePattern();
-            virtual bool matches( TestCaseInfo const& testCase ) const {
-                return m_wildcardPattern.matches( toLower( testCase.name ) );
-            }
+            virtual bool matches( TestCaseInfo const& testCase ) const override;
         private:
             WildcardPattern m_wildcardPattern;
         };
 
         class TagPattern : public Pattern {
         public:
-            TagPattern( std::string const& tag ) : m_tag( toLower( tag ) ) {}
+            TagPattern( std::string const& tag );
             virtual ~TagPattern();
-            virtual bool matches( TestCaseInfo const& testCase ) const {
-                return testCase.lcaseTags.find( m_tag ) != testCase.lcaseTags.end();
-            }
+            virtual bool matches( TestCaseInfo const& testCase ) const override;
         private:
             std::string m_tag;
         };
 
         class ExcludedPattern : public Pattern {
         public:
-            ExcludedPattern( Ptr<Pattern> const& underlyingPattern ) : m_underlyingPattern( underlyingPattern ) {}
+            ExcludedPattern( PatternPtr const& underlyingPattern );
             virtual ~ExcludedPattern();
-            virtual bool matches( TestCaseInfo const& testCase ) const { return !m_underlyingPattern->matches( testCase ); }
+            virtual bool matches( TestCaseInfo const& testCase ) const override;
         private:
-            Ptr<Pattern> m_underlyingPattern;
+            PatternPtr m_underlyingPattern;
         };
 
         struct Filter {
-            std::vector<Ptr<Pattern> > m_patterns;
+            std::vector<PatternPtr> m_patterns;
 
-            bool matches( TestCaseInfo const& testCase ) const {
-                // All patterns in a filter must match for the filter to be a match
-                for( std::vector<Ptr<Pattern> >::const_iterator it = m_patterns.begin(), itEnd = m_patterns.end(); it != itEnd; ++it )
-                    if( !(*it)->matches( testCase ) )
-                        return false;
-                    return true;
-            }
+            bool matches( TestCaseInfo const& testCase ) const;
         };
 
     public:
-        bool hasFilters() const {
-            return !m_filters.empty();
-        }
-        bool matches( TestCaseInfo const& testCase ) const {
-            // A TestSpec matches if any filter matches
-            for( std::vector<Filter>::const_iterator it = m_filters.begin(), itEnd = m_filters.end(); it != itEnd; ++it )
-                if( it->matches( testCase ) )
-                    return true;
-            return false;
-        }
+        bool hasFilters() const;
+        bool matches( TestCaseInfo const& testCase ) const;
 
     private:
         std::vector<Filter> m_filters;
@@ -3245,96 +2770,75 @@ namespace Catch {
 #pragma clang diagnostic pop
 #endif
 
+// end catch_test_spec.h
+// start catch_interfaces_tag_alias_registry.h
+
+#include <string>
+
+namespace Catch {
+
+    struct TagAlias;
+
+    struct ITagAliasRegistry {
+        virtual ~ITagAliasRegistry();
+        // Nullptr if not present
+        virtual TagAlias const* find( std::string const& alias ) const = 0;
+        virtual std::string expandAliases( std::string const& unexpandedTestSpec ) const = 0;
+
+        static ITagAliasRegistry const& get();
+    };
+
+} // end namespace Catch
+
+// end catch_interfaces_tag_alias_registry.h
 namespace Catch {
 
     class TestSpecParser {
-        enum Mode{ None, Name, QuotedName, Tag };
-        Mode m_mode;
-        bool m_exclusion;
-        std::size_t m_start, m_pos;
+        enum Mode{ None, Name, QuotedName, Tag, EscapedName };
+        Mode m_mode = None;
+        bool m_exclusion = false;
+        std::size_t m_start = std::string::npos, m_pos = 0;
         std::string m_arg;
+        std::vector<std::size_t> m_escapeChars;
         TestSpec::Filter m_currentFilter;
         TestSpec m_testSpec;
-        ITagAliasRegistry const* m_tagAliases;
+        ITagAliasRegistry const* m_tagAliases = nullptr;
 
     public:
-        TestSpecParser( ITagAliasRegistry const& tagAliases ) : m_tagAliases( &tagAliases ) {}
+        TestSpecParser( ITagAliasRegistry const& tagAliases );
+
+        TestSpecParser& parse( std::string const& arg );
+        TestSpec testSpec();
 
-        TestSpecParser& parse( std::string const& arg ) {
-            m_mode = None;
-            m_exclusion = false;
-            m_start = std::string::npos;
-            m_arg = m_tagAliases->expandAliases( arg );
-            for( m_pos = 0; m_pos < m_arg.size(); ++m_pos )
-                visitChar( m_arg[m_pos] );
-            if( m_mode == Name )
-                addPattern<TestSpec::NamePattern>();
-            return *this;
-        }
-        TestSpec testSpec() {
-            addFilter();
-            return m_testSpec;
-        }
     private:
-        void visitChar( char c ) {
-            if( m_mode == None ) {
-                switch( c ) {
-                case ' ': return;
-                case '~': m_exclusion = true; return;
-                case '[': return startNewMode( Tag, ++m_pos );
-                case '"': return startNewMode( QuotedName, ++m_pos );
-                default: startNewMode( Name, m_pos ); break;
-                }
-            }
-            if( m_mode == Name ) {
-                if( c == ',' ) {
-                    addPattern<TestSpec::NamePattern>();
-                    addFilter();
-                }
-                else if( c == '[' ) {
-                    if( subString() == "exclude:" )
-                        m_exclusion = true;
-                    else
-                        addPattern<TestSpec::NamePattern>();
-                    startNewMode( Tag, ++m_pos );
-                }
-            }
-            else if( m_mode == QuotedName && c == '"' )
-                addPattern<TestSpec::NamePattern>();
-            else if( m_mode == Tag && c == ']' )
-                addPattern<TestSpec::TagPattern>();
-        }
-        void startNewMode( Mode mode, std::size_t start ) {
-            m_mode = mode;
-            m_start = start;
-        }
-        std::string subString() const { return m_arg.substr( m_start, m_pos - m_start ); }
+        void visitChar( char c );
+        void startNewMode( Mode mode, std::size_t start );
+        void escape();
+        std::string subString() const;
+
         template<typename T>
         void addPattern() {
             std::string token = subString();
+            for( std::size_t i = 0; i < m_escapeChars.size(); ++i )
+                token = token.substr( 0, m_escapeChars[i]-m_start-i ) + token.substr( m_escapeChars[i]-m_start-i+1 );
+            m_escapeChars.clear();
             if( startsWith( token, "exclude:" ) ) {
                 m_exclusion = true;
                 token = token.substr( 8 );
             }
             if( !token.empty() ) {
-                Ptr<TestSpec::Pattern> pattern = new T( token );
+                TestSpec::PatternPtr pattern = std::make_shared<T>( token );
                 if( m_exclusion )
-                    pattern = new TestSpec::ExcludedPattern( pattern );
+                    pattern = std::make_shared<TestSpec::ExcludedPattern>( pattern );
                 m_currentFilter.m_patterns.push_back( pattern );
             }
             m_exclusion = false;
             m_mode = None;
         }
-        void addFilter() {
-            if( !m_currentFilter.m_patterns.empty() ) {
-                m_testSpec.m_filters.push_back( m_currentFilter );
-                m_currentFilter = TestSpec::Filter();
-            }
-        }
+
+        void addFilter();
     };
-    inline TestSpec parseTestSpec( std::string const& arg ) {
-        return TestSpecParser( ITagAliasRegistry::get() ).parse( arg ).testSpec();
-    }
+    TestSpec parseTestSpec( std::string const& arg );
 
 } // namespace Catch
 
@@ -3342,20 +2846,21 @@ namespace Catch {
 #pragma clang diagnostic pop
 #endif
 
-// #included from: catch_interfaces_config.h
-#define TWOBLUECUBES_CATCH_INTERFACES_CONFIG_H_INCLUDED
+// end catch_test_spec_parser.h
+// start catch_interfaces_config.h
 
-#include <iostream>
+#include <iosfwd>
 #include <string>
 #include <vector>
+#include <memory>
 
 namespace Catch {
 
-    struct Verbosity { enum Level {
-        NoOutput = 0,
-        Quiet,
-        Normal
-    }; };
+    enum class Verbosity {
+        Quiet = 0,
+        Normal,
+        High
+    };
 
     struct WarnAbout { enum What {
         Nothing = 0x00,
@@ -3377,10 +2882,16 @@ namespace Catch {
         Yes,
         No
     }; };
+    struct WaitForKeypress { enum When {
+        Never,
+        BeforeStart = 1,
+        BeforeExit = 2,
+        BeforeStartAndExit = BeforeStart | BeforeExit
+    }; };
 
     class TestSpec;
 
-    struct IConfig : IShared {
+    struct IConfig : NonCopyable {
 
         virtual ~IConfig();
 
@@ -3396,15 +2907,20 @@ namespace Catch {
         virtual TestSpec const& testSpec() const = 0;
         virtual RunTests::InWhatOrder runOrder() const = 0;
         virtual unsigned int rngSeed() const = 0;
+        virtual int benchmarkResolutionMultiple() const = 0;
         virtual UseColour::YesOrNo useColour() const = 0;
+        virtual std::vector<std::string> const& getSectionsToRun() const = 0;
+        virtual Verbosity verbosity() const = 0;
     };
+
+    using IConfigPtr = std::shared_ptr<IConfig const>;
 }
 
-// #included from: catch_stream.h
-#define TWOBLUECUBES_CATCH_STREAM_H_INCLUDED
+// end catch_interfaces_config.h
+// Libstdc++ doesn't like incomplete classes for unique_ptr
+// start catch_stream.h
 
-// #included from: catch_streambuf.h
-#define TWOBLUECUBES_CATCH_STREAMBUF_H_INCLUDED
+// start catch_streambuf.h
 
 #include <streambuf>
 
@@ -3412,21 +2928,24 @@ namespace Catch {
 
     class StreamBufBase : public std::streambuf {
     public:
-        virtual ~StreamBufBase() CATCH_NOEXCEPT;
+        virtual ~StreamBufBase();
     };
 }
 
+// end catch_streambuf.h
 #include <streambuf>
 #include <ostream>
 #include <fstream>
+#include <memory>
 
 namespace Catch {
 
     std::ostream& cout();
     std::ostream& cerr();
+    std::ostream& clog();
 
     struct IStream {
-        virtual ~IStream() CATCH_NOEXCEPT;
+        virtual ~IStream();
         virtual std::ostream& stream() const = 0;
     };
 
@@ -3434,38 +2953,38 @@ namespace Catch {
         mutable std::ofstream m_ofs;
     public:
         FileStream( std::string const& filename );
-        virtual ~FileStream() CATCH_NOEXCEPT;
+        ~FileStream() override = default;
     public: // IStream
-        virtual std::ostream& stream() const CATCH_OVERRIDE;
+        std::ostream& stream() const override;
     };
 
     class CoutStream : public IStream {
         mutable std::ostream m_os;
     public:
         CoutStream();
-        virtual ~CoutStream() CATCH_NOEXCEPT;
+        ~CoutStream() override = default;
 
     public: // IStream
-        virtual std::ostream& stream() const CATCH_OVERRIDE;
+        std::ostream& stream() const override;
     };
 
     class DebugOutStream : public IStream {
-        std::auto_ptr<StreamBufBase> m_streamBuf;
+        std::unique_ptr<StreamBufBase> m_streamBuf;
         mutable std::ostream m_os;
     public:
         DebugOutStream();
-        virtual ~DebugOutStream() CATCH_NOEXCEPT;
+        ~DebugOutStream() override = default;
 
     public: // IStream
-        virtual std::ostream& stream() const CATCH_OVERRIDE;
+        std::ostream& stream() const override;
     };
 }
 
+// end catch_stream.h
+
 #include <memory>
 #include <vector>
 #include <string>
-#include <iostream>
-#include <ctime>
 
 #ifndef CATCH_CONFIG_CONSOLE_WIDTH
 #define CATCH_CONFIG_CONSOLE_WIDTH 80
@@ -3473,48 +2992,32 @@ namespace Catch {
 
 namespace Catch {
 
-    struct ConfigData {
-
-        ConfigData()
-        :   listTests( false ),
-            listTags( false ),
-            listReporters( false ),
-            listTestNamesOnly( false ),
-            showSuccessfulTests( false ),
-            shouldDebugBreak( false ),
-            noThrow( false ),
-            showHelp( false ),
-            showInvisibles( false ),
-            filenamesAsTags( false ),
-            abortAfter( -1 ),
-            rngSeed( 0 ),
-            verbosity( Verbosity::Normal ),
-            warnings( WarnAbout::Nothing ),
-            showDurations( ShowDurations::DefaultForReporter ),
-            runOrder( RunTests::InDeclarationOrder ),
-            useColour( UseColour::Auto )
-        {}
-
-        bool listTests;
-        bool listTags;
-        bool listReporters;
-        bool listTestNamesOnly;
+    struct IStream;
 
-        bool showSuccessfulTests;
-        bool shouldDebugBreak;
-        bool noThrow;
-        bool showHelp;
-        bool showInvisibles;
-        bool filenamesAsTags;
-
-        int abortAfter;
-        unsigned int rngSeed;
-
-        Verbosity::Level verbosity;
-        WarnAbout::What warnings;
-        ShowDurations::OrNot showDurations;
-        RunTests::InWhatOrder runOrder;
-        UseColour::YesOrNo useColour;
+    struct ConfigData {
+        bool listTests = false;
+        bool listTags = false;
+        bool listReporters = false;
+        bool listTestNamesOnly = false;
+
+        bool showSuccessfulTests = false;
+        bool shouldDebugBreak = false;
+        bool noThrow = false;
+        bool showHelp = false;
+        bool showInvisibles = false;
+        bool filenamesAsTags = false;
+        bool libIdentify = false;
+
+        int abortAfter = -1;
+        unsigned int rngSeed = 0;
+        int benchmarkResolutionMultiple = 100;
+
+        Verbosity verbosity = Verbosity::Normal;
+        WarnAbout::What warnings = WarnAbout::Nothing;
+        ShowDurations::OrNot showDurations = ShowDurations::DefaultForReporter;
+        RunTests::InWhatOrder runOrder = RunTests::InDeclarationOrder;
+        UseColour::YesOrNo useColour = UseColour::Auto;
+        WaitForKeypress::When waitForKeypress = WaitForKeypress::Never;
 
         std::string outputFilename;
         std::string name;
@@ -3522,1569 +3025,198 @@ namespace Catch {
 
         std::vector<std::string> reporterNames;
         std::vector<std::string> testsOrTags;
+        std::vector<std::string> sectionsToRun;
     };
 
-    class Config : public SharedImpl<IConfig> {
-    private:
-        Config( Config const& other );
-        Config& operator = ( Config const& other );
-        virtual void dummy();
+    class Config : public IConfig {
     public:
 
-        Config()
-        {}
+        Config() = default;
+        Config( ConfigData const& data );
+        virtual ~Config() = default;
 
-        Config( ConfigData const& data )
-        :   m_data( data ),
-            m_stream( openStream() )
-        {
-            if( !data.testsOrTags.empty() ) {
-                TestSpecParser parser( ITagAliasRegistry::get() );
-                for( std::size_t i = 0; i < data.testsOrTags.size(); ++i )
-                    parser.parse( data.testsOrTags[i] );
-                m_testSpec = parser.testSpec();
-            }
-        }
+        std::string const& getFilename() const;
 
-        virtual ~Config() {
-        }
+        bool listTests() const;
+        bool listTestNamesOnly() const;
+        bool listTags() const;
+        bool listReporters() const;
 
-        std::string const& getFilename() const {
-            return m_data.outputFilename ;
-        }
-
-        bool listTests() const { return m_data.listTests; }
-        bool listTestNamesOnly() const { return m_data.listTestNamesOnly; }
-        bool listTags() const { return m_data.listTags; }
-        bool listReporters() const { return m_data.listReporters; }
-
-        std::string getProcessName() const { return m_data.processName; }
-
-        bool shouldDebugBreak() const { return m_data.shouldDebugBreak; }
+        std::string getProcessName() const;
 
-        std::vector<std::string> getReporterNames() const { return m_data.reporterNames; }
+        std::vector<std::string> const& getReporterNames() const;
+        std::vector<std::string> const& getSectionsToRun() const override;
 
-        int abortAfter() const { return m_data.abortAfter; }
+        virtual TestSpec const& testSpec() const override;
 
-        TestSpec const& testSpec() const { return m_testSpec; }
-
-        bool showHelp() const { return m_data.showHelp; }
-        bool showInvisibles() const { return m_data.showInvisibles; }
+        bool showHelp() const;
 
         // IConfig interface
-        virtual bool allowThrows() const        { return !m_data.noThrow; }
-        virtual std::ostream& stream() const    { return m_stream->stream(); }
-        virtual std::string name() const        { return m_data.name.empty() ? m_data.processName : m_data.name; }
-        virtual bool includeSuccessfulResults() const   { return m_data.showSuccessfulTests; }
-        virtual bool warnAboutMissingAssertions() const { return m_data.warnings & WarnAbout::NoAssertions; }
-        virtual ShowDurations::OrNot showDurations() const { return m_data.showDurations; }
-        virtual RunTests::InWhatOrder runOrder() const  { return m_data.runOrder; }
-        virtual unsigned int rngSeed() const    { return m_data.rngSeed; }
-        virtual UseColour::YesOrNo useColour() const { return m_data.useColour; }
+        bool allowThrows() const override;
+        std::ostream& stream() const override;
+        std::string name() const override;
+        bool includeSuccessfulResults() const override;
+        bool warnAboutMissingAssertions() const override;
+        ShowDurations::OrNot showDurations() const override;
+        RunTests::InWhatOrder runOrder() const override;
+        unsigned int rngSeed() const override;
+        int benchmarkResolutionMultiple() const override;
+        UseColour::YesOrNo useColour() const override;
+        bool shouldDebugBreak() const override;
+        int abortAfter() const override;
+        bool showInvisibles() const override;
+        Verbosity verbosity() const override;
 
     private:
 
-        IStream const* openStream() {
-            if( m_data.outputFilename.empty() )
-                return new CoutStream();
-            else if( m_data.outputFilename[0] == '%' ) {
-                if( m_data.outputFilename == "%debug" )
-                    return new DebugOutStream();
-                else
-                    throw std::domain_error( "Unrecognised stream: " + m_data.outputFilename );
-            }
-            else
-                return new FileStream( m_data.outputFilename );
-        }
+        IStream const* openStream();
         ConfigData m_data;
 
-        std::auto_ptr<IStream const> m_stream;
+        std::unique_ptr<IStream const> m_stream;
         TestSpec m_testSpec;
     };
 
 } // end namespace Catch
 
-// #included from: catch_clara.h
-#define TWOBLUECUBES_CATCH_CLARA_H_INCLUDED
-
-// Use Catch's value for console width (store Clara's off to the side, if present)
-#ifdef CLARA_CONFIG_CONSOLE_WIDTH
-#define CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH CLARA_CONFIG_CONSOLE_WIDTH
-#undef CLARA_CONFIG_CONSOLE_WIDTH
-#endif
-#define CLARA_CONFIG_CONSOLE_WIDTH CATCH_CONFIG_CONSOLE_WIDTH
-
-// Declare Clara inside the Catch namespace
-#define STITCH_CLARA_OPEN_NAMESPACE namespace Catch {
-// #included from: ../external/clara.h
-
-// Version 0.0.2.3
-
-// Only use header guard if we are not using an outer namespace
-#if !defined(TWOBLUECUBES_CLARA_H_INCLUDED) || defined(STITCH_CLARA_OPEN_NAMESPACE)
-
-#ifndef STITCH_CLARA_OPEN_NAMESPACE
-#define TWOBLUECUBES_CLARA_H_INCLUDED
-#define STITCH_CLARA_OPEN_NAMESPACE
-#define STITCH_CLARA_CLOSE_NAMESPACE
-#else
-#define STITCH_CLARA_CLOSE_NAMESPACE }
-#endif
-
-#define STITCH_TBC_TEXT_FORMAT_OPEN_NAMESPACE STITCH_CLARA_OPEN_NAMESPACE
-
-// ----------- #included from tbc_text_format.h -----------
-
-// Only use header guard if we are not using an outer namespace
-#if !defined(TBC_TEXT_FORMAT_H_INCLUDED) || defined(STITCH_TBC_TEXT_FORMAT_OUTER_NAMESPACE)
-#ifndef STITCH_TBC_TEXT_FORMAT_OUTER_NAMESPACE
-#define TBC_TEXT_FORMAT_H_INCLUDED
-#endif
+// end catch_config.hpp
+// start catch_assertionresult.h
 
 #include <string>
-#include <vector>
-#include <sstream>
-#include <algorithm>
-
-// Use optional outer namespace
-#ifdef STITCH_TBC_TEXT_FORMAT_OUTER_NAMESPACE
-namespace STITCH_TBC_TEXT_FORMAT_OUTER_NAMESPACE {
-#endif
-
-namespace Tbc {
-
-#ifdef TBC_TEXT_FORMAT_CONSOLE_WIDTH
-    const unsigned int consoleWidth = TBC_TEXT_FORMAT_CONSOLE_WIDTH;
-#else
-    const unsigned int consoleWidth = 80;
-#endif
-
-    struct TextAttributes {
-        TextAttributes()
-        :   initialIndent( std::string::npos ),
-            indent( 0 ),
-            width( consoleWidth-1 ),
-            tabChar( '\t' )
-        {}
-
-        TextAttributes& setInitialIndent( std::size_t _value )  { initialIndent = _value; return *this; }
-        TextAttributes& setIndent( std::size_t _value )         { indent = _value; return *this; }
-        TextAttributes& setWidth( std::size_t _value )          { width = _value; return *this; }
-        TextAttributes& setTabChar( char _value )               { tabChar = _value; return *this; }
-
-        std::size_t initialIndent;  // indent of first line, or npos
-        std::size_t indent;         // indent of subsequent lines, or all if initialIndent is npos
-        std::size_t width;          // maximum width of text, including indent. Longer text will wrap
-        char tabChar;               // If this char is seen the indent is changed to current pos
-    };
-
-    class Text {
-    public:
-        Text( std::string const& _str, TextAttributes const& _attr = TextAttributes() )
-        : attr( _attr )
-        {
-            std::string wrappableChars = " [({.,/|\\-";
-            std::size_t indent = _attr.initialIndent != std::string::npos
-                ? _attr.initialIndent
-                : _attr.indent;
-            std::string remainder = _str;
-
-            while( !remainder.empty() ) {
-                if( lines.size() >= 1000 ) {
-                    lines.push_back( "... message truncated due to excessive size" );
-                    return;
-                }
-                std::size_t tabPos = std::string::npos;
-                std::size_t width = (std::min)( remainder.size(), _attr.width - indent );
-                std::size_t pos = remainder.find_first_of( '\n' );
-                if( pos <= width ) {
-                    width = pos;
-                }
-                pos = remainder.find_last_of( _attr.tabChar, width );
-                if( pos != std::string::npos ) {
-                    tabPos = pos;
-                    if( remainder[width] == '\n' )
-                        width--;
-                    remainder = remainder.substr( 0, tabPos ) + remainder.substr( tabPos+1 );
-                }
 
-                if( width == remainder.size() ) {
-                    spliceLine( indent, remainder, width );
-                }
-                else if( remainder[width] == '\n' ) {
-                    spliceLine( indent, remainder, width );
-                    if( width <= 1 || remainder.size() != 1 )
-                        remainder = remainder.substr( 1 );
-                    indent = _attr.indent;
-                }
-                else {
-                    pos = remainder.find_last_of( wrappableChars, width );
-                    if( pos != std::string::npos && pos > 0 ) {
-                        spliceLine( indent, remainder, pos );
-                        if( remainder[0] == ' ' )
-                            remainder = remainder.substr( 1 );
-                    }
-                    else {
-                        spliceLine( indent, remainder, width-1 );
-                        lines.back() += "-";
-                    }
-                    if( lines.size() == 1 )
-                        indent = _attr.indent;
-                    if( tabPos != std::string::npos )
-                        indent += tabPos;
-                }
-            }
-        }
+namespace Catch {
 
-        void spliceLine( std::size_t _indent, std::string& _remainder, std::size_t _pos ) {
-            lines.push_back( std::string( _indent, ' ' ) + _remainder.substr( 0, _pos ) );
-            _remainder = _remainder.substr( _pos );
-        }
+    struct AssertionResultData
+    {
+        AssertionResultData() = delete;
 
-        typedef std::vector<std::string>::const_iterator const_iterator;
+        AssertionResultData( ResultWas::OfType _resultType, LazyExpression const& _lazyExpression );
 
-        const_iterator begin() const { return lines.begin(); }
-        const_iterator end() const { return lines.end(); }
-        std::string const& last() const { return lines.back(); }
-        std::size_t size() const { return lines.size(); }
-        std::string const& operator[]( std::size_t _index ) const { return lines[_index]; }
-        std::string toString() const {
-            std::ostringstream oss;
-            oss << *this;
-            return oss.str();
-        }
-
-        inline friend std::ostream& operator << ( std::ostream& _stream, Text const& _text ) {
-            for( Text::const_iterator it = _text.begin(), itEnd = _text.end();
-                it != itEnd; ++it ) {
-                if( it != _text.begin() )
-                    _stream << "\n";
-                _stream << *it;
-            }
-            return _stream;
-        }
+        std::string message;
+        mutable std::string reconstructedExpression;
+        LazyExpression lazyExpression;
+        ResultWas::OfType resultType;
 
-    private:
-        std::string str;
-        TextAttributes attr;
-        std::vector<std::string> lines;
+        std::string reconstructExpression() const;
     };
 
-} // end namespace Tbc
-
-#ifdef STITCH_TBC_TEXT_FORMAT_OUTER_NAMESPACE
-} // end outer namespace
-#endif
-
-#endif // TBC_TEXT_FORMAT_H_INCLUDED
-
-// ----------- end of #include from tbc_text_format.h -----------
-// ........... back in clara.h
-
-#undef STITCH_TBC_TEXT_FORMAT_OPEN_NAMESPACE
-
-// ----------- #included from clara_compilers.h -----------
-
-#ifndef TWOBLUECUBES_CLARA_COMPILERS_H_INCLUDED
-#define TWOBLUECUBES_CLARA_COMPILERS_H_INCLUDED
-
-// Detect a number of compiler features - mostly C++11/14 conformance - by compiler
-// The following features are defined:
-//
-// CLARA_CONFIG_CPP11_NULLPTR : is nullptr supported?
-// CLARA_CONFIG_CPP11_NOEXCEPT : is noexcept supported?
-// CLARA_CONFIG_CPP11_GENERATED_METHODS : The delete and default keywords for compiler generated methods
-// CLARA_CONFIG_CPP11_OVERRIDE : is override supported?
-// CLARA_CONFIG_CPP11_UNIQUE_PTR : is unique_ptr supported (otherwise use auto_ptr)
-
-// CLARA_CONFIG_CPP11_OR_GREATER : Is C++11 supported?
-
-// CLARA_CONFIG_VARIADIC_MACROS : are variadic macros supported?
-
-// In general each macro has a _NO_<feature name> form
-// (e.g. CLARA_CONFIG_CPP11_NO_NULLPTR) which disables the feature.
-// Many features, at point of detection, define an _INTERNAL_ macro, so they
-// can be combined, en-mass, with the _NO_ forms later.
-
-// All the C++11 features can be disabled with CLARA_CONFIG_NO_CPP11
-
-#ifdef __clang__
-
-#if __has_feature(cxx_nullptr)
-#define CLARA_INTERNAL_CONFIG_CPP11_NULLPTR
-#endif
-
-#if __has_feature(cxx_noexcept)
-#define CLARA_INTERNAL_CONFIG_CPP11_NOEXCEPT
-#endif
-
-#endif // __clang__
-
-////////////////////////////////////////////////////////////////////////////////
-// GCC
-#ifdef __GNUC__
-
-#if __GNUC__ == 4 && __GNUC_MINOR__ >= 6 && defined(__GXX_EXPERIMENTAL_CXX0X__)
-#define CLARA_INTERNAL_CONFIG_CPP11_NULLPTR
-#endif
-
-// - otherwise more recent versions define __cplusplus >= 201103L
-// and will get picked up below
-
-#endif // __GNUC__
-
-////////////////////////////////////////////////////////////////////////////////
-// Visual C++
-#ifdef _MSC_VER
-
-#if (_MSC_VER >= 1600)
-#define CLARA_INTERNAL_CONFIG_CPP11_NULLPTR
-#define CLARA_INTERNAL_CONFIG_CPP11_UNIQUE_PTR
-#endif
-
-#if (_MSC_VER >= 1900 ) // (VC++ 13 (VS2015))
-#define CLARA_INTERNAL_CONFIG_CPP11_NOEXCEPT
-#define CLARA_INTERNAL_CONFIG_CPP11_GENERATED_METHODS
-#endif
-
-#endif // _MSC_VER
-
-////////////////////////////////////////////////////////////////////////////////
-// C++ language feature support
-
-// catch all support for C++11
-#if defined(__cplusplus) && __cplusplus >= 201103L
-
-#define CLARA_CPP11_OR_GREATER
-
-#if !defined(CLARA_INTERNAL_CONFIG_CPP11_NULLPTR)
-#define CLARA_INTERNAL_CONFIG_CPP11_NULLPTR
-#endif
-
-#ifndef CLARA_INTERNAL_CONFIG_CPP11_NOEXCEPT
-#define CLARA_INTERNAL_CONFIG_CPP11_NOEXCEPT
-#endif
-
-#ifndef CLARA_INTERNAL_CONFIG_CPP11_GENERATED_METHODS
-#define CLARA_INTERNAL_CONFIG_CPP11_GENERATED_METHODS
-#endif
-
-#if !defined(CLARA_INTERNAL_CONFIG_CPP11_OVERRIDE)
-#define CLARA_INTERNAL_CONFIG_CPP11_OVERRIDE
-#endif
-#if !defined(CLARA_INTERNAL_CONFIG_CPP11_UNIQUE_PTR)
-#define CLARA_INTERNAL_CONFIG_CPP11_UNIQUE_PTR
-#endif
-
-#endif // __cplusplus >= 201103L
-
-// Now set the actual defines based on the above + anything the user has configured
-#if defined(CLARA_INTERNAL_CONFIG_CPP11_NULLPTR) && !defined(CLARA_CONFIG_CPP11_NO_NULLPTR) && !defined(CLARA_CONFIG_CPP11_NULLPTR) && !defined(CLARA_CONFIG_NO_CPP11)
-#define CLARA_CONFIG_CPP11_NULLPTR
-#endif
-#if defined(CLARA_INTERNAL_CONFIG_CPP11_NOEXCEPT) && !defined(CLARA_CONFIG_CPP11_NO_NOEXCEPT) && !defined(CLARA_CONFIG_CPP11_NOEXCEPT) && !defined(CLARA_CONFIG_NO_CPP11)
-#define CLARA_CONFIG_CPP11_NOEXCEPT
-#endif
-#if defined(CLARA_INTERNAL_CONFIG_CPP11_GENERATED_METHODS) && !defined(CLARA_CONFIG_CPP11_NO_GENERATED_METHODS) && !defined(CLARA_CONFIG_CPP11_GENERATED_METHODS) && !defined(CLARA_CONFIG_NO_CPP11)
-#define CLARA_CONFIG_CPP11_GENERATED_METHODS
-#endif
-#if defined(CLARA_INTERNAL_CONFIG_CPP11_OVERRIDE) && !defined(CLARA_CONFIG_NO_OVERRIDE) && !defined(CLARA_CONFIG_CPP11_OVERRIDE) && !defined(CLARA_CONFIG_NO_CPP11)
-#define CLARA_CONFIG_CPP11_OVERRIDE
-#endif
-#if defined(CLARA_INTERNAL_CONFIG_CPP11_UNIQUE_PTR) && !defined(CLARA_CONFIG_NO_UNIQUE_PTR) && !defined(CLARA_CONFIG_CPP11_UNIQUE_PTR) && !defined(CLARA_CONFIG_NO_CPP11)
-#define CLARA_CONFIG_CPP11_UNIQUE_PTR
-#endif
-
-// noexcept support:
-#if defined(CLARA_CONFIG_CPP11_NOEXCEPT) && !defined(CLARA_NOEXCEPT)
-#define CLARA_NOEXCEPT noexcept
-#  define CLARA_NOEXCEPT_IS(x) noexcept(x)
-#else
-#define CLARA_NOEXCEPT throw()
-#  define CLARA_NOEXCEPT_IS(x)
-#endif
-
-// nullptr support
-#ifdef CLARA_CONFIG_CPP11_NULLPTR
-#define CLARA_NULL nullptr
-#else
-#define CLARA_NULL NULL
-#endif
-
-// override support
-#ifdef CLARA_CONFIG_CPP11_OVERRIDE
-#define CLARA_OVERRIDE override
-#else
-#define CLARA_OVERRIDE
-#endif
-
-// unique_ptr support
-#ifdef CLARA_CONFIG_CPP11_UNIQUE_PTR
-#   define CLARA_AUTO_PTR( T ) std::unique_ptr<T>
-#else
-#   define CLARA_AUTO_PTR( T ) std::auto_ptr<T>
-#endif
-
-#endif // TWOBLUECUBES_CLARA_COMPILERS_H_INCLUDED
-
-// ----------- end of #include from clara_compilers.h -----------
-// ........... back in clara.h
-
-#include <map>
-#include <stdexcept>
-#include <memory>
-
-#if defined(WIN32) || defined(__WIN32__) || defined(_WIN32) || defined(_MSC_VER)
-#define CLARA_PLATFORM_WINDOWS
-#endif
-
-// Use optional outer namespace
-#ifdef STITCH_CLARA_OPEN_NAMESPACE
-STITCH_CLARA_OPEN_NAMESPACE
-#endif
-
-namespace Clara {
-
-    struct UnpositionalTag {};
-
-    extern UnpositionalTag _;
-
-#ifdef CLARA_CONFIG_MAIN
-    UnpositionalTag _;
-#endif
-
-    namespace Detail {
-
-#ifdef CLARA_CONSOLE_WIDTH
-    const unsigned int consoleWidth = CLARA_CONFIG_CONSOLE_WIDTH;
-#else
-    const unsigned int consoleWidth = 80;
-#endif
-
-        using namespace Tbc;
-
-        inline bool startsWith( std::string const& str, std::string const& prefix ) {
-            return str.size() >= prefix.size() && str.substr( 0, prefix.size() ) == prefix;
-        }
-
-        template<typename T> struct RemoveConstRef{ typedef T type; };
-        template<typename T> struct RemoveConstRef<T&>{ typedef T type; };
-        template<typename T> struct RemoveConstRef<T const&>{ typedef T type; };
-        template<typename T> struct RemoveConstRef<T const>{ typedef T type; };
-
-        template<typename T>    struct IsBool       { static const bool value = false; };
-        template<>              struct IsBool<bool> { static const bool value = true; };
-
-        template<typename T>
-        void convertInto( std::string const& _source, T& _dest ) {
-            std::stringstream ss;
-            ss << _source;
-            ss >> _dest;
-            if( ss.fail() )
-                throw std::runtime_error( "Unable to convert " + _source + " to destination type" );
-        }
-        inline void convertInto( std::string const& _source, std::string& _dest ) {
-            _dest = _source;
-        }
-        inline void convertInto( std::string const& _source, bool& _dest ) {
-            std::string sourceLC = _source;
-            std::transform( sourceLC.begin(), sourceLC.end(), sourceLC.begin(), ::tolower );
-            if( sourceLC == "y" || sourceLC == "1" || sourceLC == "true" || sourceLC == "yes" || sourceLC == "on" )
-                _dest = true;
-            else if( sourceLC == "n" || sourceLC == "0" || sourceLC == "false" || sourceLC == "no" || sourceLC == "off" )
-                _dest = false;
-            else
-                throw std::runtime_error( "Expected a boolean value but did not recognise:\n  '" + _source + "'" );
-        }
-
-        template<typename ConfigT>
-        struct IArgFunction {
-            virtual ~IArgFunction() {}
-#ifdef CLARA_CONFIG_CPP11_GENERATED_METHODS
-            IArgFunction()                      = default;
-            IArgFunction( IArgFunction const& ) = default;
-#endif
-            virtual void set( ConfigT& config, std::string const& value ) const = 0;
-            virtual bool takesArg() const = 0;
-            virtual IArgFunction* clone() const = 0;
-        };
-
-        template<typename ConfigT>
-        class BoundArgFunction {
-        public:
-            BoundArgFunction() : functionObj( CLARA_NULL ) {}
-            BoundArgFunction( IArgFunction<ConfigT>* _functionObj ) : functionObj( _functionObj ) {}
-            BoundArgFunction( BoundArgFunction const& other ) : functionObj( other.functionObj ? other.functionObj->clone() : CLARA_NULL ) {}
-            BoundArgFunction& operator = ( BoundArgFunction const& other ) {
-                IArgFunction<ConfigT>* newFunctionObj = other.functionObj ? other.functionObj->clone() : CLARA_NULL;
-                delete functionObj;
-                functionObj = newFunctionObj;
-                return *this;
-            }
-            ~BoundArgFunction() { delete functionObj; }
-
-            void set( ConfigT& config, std::string const& value ) const {
-                functionObj->set( config, value );
-            }
-            bool takesArg() const { return functionObj->takesArg(); }
-
-            bool isSet() const {
-                return functionObj != CLARA_NULL;
-            }
-        private:
-            IArgFunction<ConfigT>* functionObj;
-        };
-
-        template<typename C>
-        struct NullBinder : IArgFunction<C>{
-            virtual void set( C&, std::string const& ) const {}
-            virtual bool takesArg() const { return true; }
-            virtual IArgFunction<C>* clone() const { return new NullBinder( *this ); }
-        };
-
-        template<typename C, typename M>
-        struct BoundDataMember : IArgFunction<C>{
-            BoundDataMember( M C::* _member ) : member( _member ) {}
-            virtual void set( C& p, std::string const& stringValue ) const {
-                convertInto( stringValue, p.*member );
-            }
-            virtual bool takesArg() const { return !IsBool<M>::value; }
-            virtual IArgFunction<C>* clone() const { return new BoundDataMember( *this ); }
-            M C::* member;
-        };
-        template<typename C, typename M>
-        struct BoundUnaryMethod : IArgFunction<C>{
-            BoundUnaryMethod( void (C::*_member)( M ) ) : member( _member ) {}
-            virtual void set( C& p, std::string const& stringValue ) const {
-                typename RemoveConstRef<M>::type value;
-                convertInto( stringValue, value );
-                (p.*member)( value );
-            }
-            virtual bool takesArg() const { return !IsBool<M>::value; }
-            virtual IArgFunction<C>* clone() const { return new BoundUnaryMethod( *this ); }
-            void (C::*member)( M );
-        };
-        template<typename C>
-        struct BoundNullaryMethod : IArgFunction<C>{
-            BoundNullaryMethod( void (C::*_member)() ) : member( _member ) {}
-            virtual void set( C& p, std::string const& stringValue ) const {
-                bool value;
-                convertInto( stringValue, value );
-                if( value )
-                    (p.*member)();
-            }
-            virtual bool takesArg() const { return false; }
-            virtual IArgFunction<C>* clone() const { return new BoundNullaryMethod( *this ); }
-            void (C::*member)();
-        };
-
-        template<typename C>
-        struct BoundUnaryFunction : IArgFunction<C>{
-            BoundUnaryFunction( void (*_function)( C& ) ) : function( _function ) {}
-            virtual void set( C& obj, std::string const& stringValue ) const {
-                bool value;
-                convertInto( stringValue, value );
-                if( value )
-                    function( obj );
-            }
-            virtual bool takesArg() const { return false; }
-            virtual IArgFunction<C>* clone() const { return new BoundUnaryFunction( *this ); }
-            void (*function)( C& );
-        };
-
-        template<typename C, typename T>
-        struct BoundBinaryFunction : IArgFunction<C>{
-            BoundBinaryFunction( void (*_function)( C&, T ) ) : function( _function ) {}
-            virtual void set( C& obj, std::string const& stringValue ) const {
-                typename RemoveConstRef<T>::type value;
-                convertInto( stringValue, value );
-                function( obj, value );
-            }
-            virtual bool takesArg() const { return !IsBool<T>::value; }
-            virtual IArgFunction<C>* clone() const { return new BoundBinaryFunction( *this ); }
-            void (*function)( C&, T );
-        };
-
-    } // namespace Detail
-
-    inline std::vector<std::string> argsToVector( int argc, char const* const* const argv ) {
-        std::vector<std::string> args( static_cast<std::size_t>( argc ) );
-        for( std::size_t i = 0; i < static_cast<std::size_t>( argc ); ++i )
-            args[i] = argv[i];
-
-        return args;
-    }
-
-    class Parser {
-        enum Mode { None, MaybeShortOpt, SlashOpt, ShortOpt, LongOpt, Positional };
-        Mode mode;
-        std::size_t from;
-        bool inQuotes;
+    class AssertionResult {
     public:
+        AssertionResult() = delete;
+        AssertionResult( AssertionInfo const& info, AssertionResultData const& data );
 
-        struct Token {
-            enum Type { Positional, ShortOpt, LongOpt };
-            Token( Type _type, std::string const& _data ) : type( _type ), data( _data ) {}
-            Type type;
-            std::string data;
-        };
-
-        Parser() : mode( None ), from( 0 ), inQuotes( false ){}
-
-        void parseIntoTokens( std::vector<std::string> const& args, std::vector<Token>& tokens ) {
-            const std::string doubleDash = "--";
-            for( std::size_t i = 1; i < args.size() && args[i] != doubleDash; ++i )
-                parseIntoTokens( args[i], tokens);
-        }
-
-        void parseIntoTokens( std::string const& arg, std::vector<Token>& tokens ) {
-            for( std::size_t i = 0; i <= arg.size(); ++i ) {
-                char c = arg[i];
-                if( c == '"' )
-                    inQuotes = !inQuotes;
-                mode = handleMode( i, c, arg, tokens );
-            }
-        }
-        Mode handleMode( std::size_t i, char c, std::string const& arg, std::vector<Token>& tokens ) {
-            switch( mode ) {
-                case None: return handleNone( i, c );
-                case MaybeShortOpt: return handleMaybeShortOpt( i, c );
-                case ShortOpt:
-                case LongOpt:
-                case SlashOpt: return handleOpt( i, c, arg, tokens );
-                case Positional: return handlePositional( i, c, arg, tokens );
-                default: throw std::logic_error( "Unknown mode" );
-            }
-        }
-
-        Mode handleNone( std::size_t i, char c ) {
-            if( inQuotes ) {
-                from = i;
-                return Positional;
-            }
-            switch( c ) {
-                case '-': return MaybeShortOpt;
-#ifdef CLARA_PLATFORM_WINDOWS
-                case '/': from = i+1; return SlashOpt;
-#endif
-                default: from = i; return Positional;
-            }
-        }
-        Mode handleMaybeShortOpt( std::size_t i, char c ) {
-            switch( c ) {
-                case '-': from = i+1; return LongOpt;
-                default: from = i; return ShortOpt;
-            }
-        }
-        Mode handleOpt( std::size_t i, char c, std::string const& arg, std::vector<Token>& tokens ) {
-            if( std::string( " \t:=\0", 5 ).find( c ) == std::string::npos )
-                return mode;
-
-            std::string optName = arg.substr( from, i-from );
-            if( mode == ShortOpt )
-                for( std::size_t j = 0; j < optName.size(); ++j )
-                    tokens.push_back( Token( Token::ShortOpt, optName.substr( j, 1 ) ) );
-            else if( mode == SlashOpt && optName.size() == 1 )
-                tokens.push_back( Token( Token::ShortOpt, optName ) );
-            else
-                tokens.push_back( Token( Token::LongOpt, optName ) );
-            return None;
-        }
-        Mode handlePositional( std::size_t i, char c, std::string const& arg, std::vector<Token>& tokens ) {
-            if( inQuotes || std::string( " \t\0", 3 ).find( c ) == std::string::npos )
-                return mode;
-
-            std::string data = arg.substr( from, i-from );
-            tokens.push_back( Token( Token::Positional, data ) );
-            return None;
-        }
-    };
-
-    template<typename ConfigT>
-    struct CommonArgProperties {
-        CommonArgProperties() {}
-        CommonArgProperties( Detail::BoundArgFunction<ConfigT> const& _boundField ) : boundField( _boundField ) {}
-
-        Detail::BoundArgFunction<ConfigT> boundField;
-        std::string description;
-        std::string detail;
-        std::string placeholder; // Only value if boundField takes an arg
-
-        bool takesArg() const {
-            return !placeholder.empty();
-        }
-        void validate() const {
-            if( !boundField.isSet() )
-                throw std::logic_error( "option not bound" );
-        }
-    };
-    struct OptionArgProperties {
-        std::vector<std::string> shortNames;
-        std::string longName;
-
-        bool hasShortName( std::string const& shortName ) const {
-            return std::find( shortNames.begin(), shortNames.end(), shortName ) != shortNames.end();
-        }
-        bool hasLongName( std::string const& _longName ) const {
-            return _longName == longName;
-        }
-    };
-    struct PositionalArgProperties {
-        PositionalArgProperties() : position( -1 ) {}
-        int position; // -1 means non-positional (floating)
+        bool isOk() const;
+        bool succeeded() const;
+        ResultWas::OfType getResultType() const;
+        bool hasExpression() const;
+        bool hasMessage() const;
+        std::string getExpression() const;
+        std::string getExpressionInMacro() const;
+        bool hasExpandedExpression() const;
+        std::string getExpandedExpression() const;
+        std::string getMessage() const;
+        SourceLineInfo getSourceInfo() const;
+        std::string getTestMacroName() const;
 
-        bool isFixedPositional() const {
-            return position != -1;
-        }
+    //protected:
+        AssertionInfo m_info;
+        AssertionResultData m_resultData;
     };
 
-    template<typename ConfigT>
-    class CommandLine {
-
-        struct Arg : CommonArgProperties<ConfigT>, OptionArgProperties, PositionalArgProperties {
-            Arg() {}
-            Arg( Detail::BoundArgFunction<ConfigT> const& _boundField ) : CommonArgProperties<ConfigT>( _boundField ) {}
-
-            using CommonArgProperties<ConfigT>::placeholder; // !TBD
-
-            std::string dbgName() const {
-                if( !longName.empty() )
-                    return "--" + longName;
-                if( !shortNames.empty() )
-                    return "-" + shortNames[0];
-                return "positional args";
-            }
-            std::string commands() const {
-                std::ostringstream oss;
-                bool first = true;
-                std::vector<std::string>::const_iterator it = shortNames.begin(), itEnd = shortNames.end();
-                for(; it != itEnd; ++it ) {
-                    if( first )
-                        first = false;
-                    else
-                        oss << ", ";
-                    oss << "-" << *it;
-                }
-                if( !longName.empty() ) {
-                    if( !first )
-                        oss << ", ";
-                    oss << "--" << longName;
-                }
-                if( !placeholder.empty() )
-                    oss << " <" << placeholder << ">";
-                return oss.str();
-            }
-        };
-
-        typedef CLARA_AUTO_PTR( Arg ) ArgAutoPtr;
-
-        friend void addOptName( Arg& arg, std::string const& optName )
-        {
-            if( optName.empty() )
-                return;
-            if( Detail::startsWith( optName, "--" ) ) {
-                if( !arg.longName.empty() )
-                    throw std::logic_error( "Only one long opt may be specified. '"
-                        + arg.longName
-                        + "' already specified, now attempting to add '"
-                        + optName + "'" );
-                arg.longName = optName.substr( 2 );
-            }
-            else if( Detail::startsWith( optName, "-" ) )
-                arg.shortNames.push_back( optName.substr( 1 ) );
-            else
-                throw std::logic_error( "option must begin with - or --. Option was: '" + optName + "'" );
-        }
-        friend void setPositionalArg( Arg& arg, int position )
-        {
-            arg.position = position;
-        }
-
-        class ArgBuilder {
-        public:
-            ArgBuilder( Arg* arg ) : m_arg( arg ) {}
-
-            // Bind a non-boolean data member (requires placeholder string)
-            template<typename C, typename M>
-            void bind( M C::* field, std::string const& placeholder ) {
-                m_arg->boundField = new Detail::BoundDataMember<C,M>( field );
-                m_arg->placeholder = placeholder;
-            }
-            // Bind a boolean data member (no placeholder required)
-            template<typename C>
-            void bind( bool C::* field ) {
-                m_arg->boundField = new Detail::BoundDataMember<C,bool>( field );
-            }
-
-            // Bind a method taking a single, non-boolean argument (requires a placeholder string)
-            template<typename C, typename M>
-            void bind( void (C::* unaryMethod)( M ), std::string const& placeholder ) {
-                m_arg->boundField = new Detail::BoundUnaryMethod<C,M>( unaryMethod );
-                m_arg->placeholder = placeholder;
-            }
-
-            // Bind a method taking a single, boolean argument (no placeholder string required)
-            template<typename C>
-            void bind( void (C::* unaryMethod)( bool ) ) {
-                m_arg->boundField = new Detail::BoundUnaryMethod<C,bool>( unaryMethod );
-            }
-
-            // Bind a method that takes no arguments (will be called if opt is present)
-            template<typename C>
-            void bind( void (C::* nullaryMethod)() ) {
-                m_arg->boundField = new Detail::BoundNullaryMethod<C>( nullaryMethod );
-            }
-
-            // Bind a free function taking a single argument - the object to operate on (no placeholder string required)
-            template<typename C>
-            void bind( void (* unaryFunction)( C& ) ) {
-                m_arg->boundField = new Detail::BoundUnaryFunction<C>( unaryFunction );
-            }
-
-            // Bind a free function taking a single argument - the object to operate on (requires a placeholder string)
-            template<typename C, typename T>
-            void bind( void (* binaryFunction)( C&, T ), std::string const& placeholder ) {
-                m_arg->boundField = new Detail::BoundBinaryFunction<C, T>( binaryFunction );
-                m_arg->placeholder = placeholder;
-            }
-
-            ArgBuilder& describe( std::string const& description ) {
-                m_arg->description = description;
-                return *this;
-            }
-            ArgBuilder& detail( std::string const& detail ) {
-                m_arg->detail = detail;
-                return *this;
-            }
-
-        protected:
-            Arg* m_arg;
-        };
+} // end namespace Catch
 
-        class OptBuilder : public ArgBuilder {
-        public:
-            OptBuilder( Arg* arg ) : ArgBuilder( arg ) {}
-            OptBuilder( OptBuilder& other ) : ArgBuilder( other ) {}
+// end catch_assertionresult.h
+// start catch_option.hpp
 
-            OptBuilder& operator[]( std::string const& optName ) {
-                addOptName( *ArgBuilder::m_arg, optName );
-                return *this;
-            }
-        };
+namespace Catch {
 
+    // An optional type
+    template<typename T>
+    class Option {
     public:
-
-        CommandLine()
-        :   m_boundProcessName( new Detail::NullBinder<ConfigT>() ),
-            m_highestSpecifiedArgPosition( 0 ),
-            m_throwOnUnrecognisedTokens( false )
+        Option() : nullableValue( nullptr ) {}
+        Option( T const& _value )
+        : nullableValue( new( storage ) T( _value ) )
+        {}
+        Option( Option const& _other )
+        : nullableValue( _other ? new( storage ) T( *_other ) : nullptr )
         {}
-        CommandLine( CommandLine const& other )
-        :   m_boundProcessName( other.m_boundProcessName ),
-            m_options ( other.m_options ),
-            m_positionalArgs( other.m_positionalArgs ),
-            m_highestSpecifiedArgPosition( other.m_highestSpecifiedArgPosition ),
-            m_throwOnUnrecognisedTokens( other.m_throwOnUnrecognisedTokens )
-        {
-            if( other.m_floatingArg.get() )
-                m_floatingArg.reset( new Arg( *other.m_floatingArg ) );
-        }
-
-        CommandLine& setThrowOnUnrecognisedTokens( bool shouldThrow = true ) {
-            m_throwOnUnrecognisedTokens = shouldThrow;
-            return *this;
-        }
-
-        OptBuilder operator[]( std::string const& optName ) {
-            m_options.push_back( Arg() );
-            addOptName( m_options.back(), optName );
-            OptBuilder builder( &m_options.back() );
-            return builder;
-        }
-
-        ArgBuilder operator[]( int position ) {
-            m_positionalArgs.insert( std::make_pair( position, Arg() ) );
-            if( position > m_highestSpecifiedArgPosition )
-                m_highestSpecifiedArgPosition = position;
-            setPositionalArg( m_positionalArgs[position], position );
-            ArgBuilder builder( &m_positionalArgs[position] );
-            return builder;
-        }
-
-        // Invoke this with the _ instance
-        ArgBuilder operator[]( UnpositionalTag ) {
-            if( m_floatingArg.get() )
-                throw std::logic_error( "Only one unpositional argument can be added" );
-            m_floatingArg.reset( new Arg() );
-            ArgBuilder builder( m_floatingArg.get() );
-            return builder;
-        }
 
-        template<typename C, typename M>
-        void bindProcessName( M C::* field ) {
-            m_boundProcessName = new Detail::BoundDataMember<C,M>( field );
-        }
-        template<typename C, typename M>
-        void bindProcessName( void (C::*_unaryMethod)( M ) ) {
-            m_boundProcessName = new Detail::BoundUnaryMethod<C,M>( _unaryMethod );
+        ~Option() {
+            reset();
         }
 
-        void optUsage( std::ostream& os, std::size_t indent = 0, std::size_t width = Detail::consoleWidth ) const {
-            typename std::vector<Arg>::const_iterator itBegin = m_options.begin(), itEnd = m_options.end(), it;
-            std::size_t maxWidth = 0;
-            for( it = itBegin; it != itEnd; ++it )
-                maxWidth = (std::max)( maxWidth, it->commands().size() );
-
-            for( it = itBegin; it != itEnd; ++it ) {
-                Detail::Text usage( it->commands(), Detail::TextAttributes()
-                                                        .setWidth( maxWidth+indent )
-                                                        .setIndent( indent ) );
-                Detail::Text desc( it->description, Detail::TextAttributes()
-                                                        .setWidth( width - maxWidth - 3 ) );
-
-                for( std::size_t i = 0; i < (std::max)( usage.size(), desc.size() ); ++i ) {
-                    std::string usageCol = i < usage.size() ? usage[i] : "";
-                    os << usageCol;
-
-                    if( i < desc.size() && !desc[i].empty() )
-                        os  << std::string( indent + 2 + maxWidth - usageCol.size(), ' ' )
-                            << desc[i];
-                    os << "\n";
-                }
+        Option& operator= ( Option const& _other ) {
+            if( &_other != this ) {
+                reset();
+                if( _other )
+                    nullableValue = new( storage ) T( *_other );
             }
+            return *this;
         }
-        std::string optUsage() const {
-            std::ostringstream oss;
-            optUsage( oss );
-            return oss.str();
+        Option& operator = ( T const& _value ) {
+            reset();
+            nullableValue = new( storage ) T( _value );
+            return *this;
         }
 
-        void argSynopsis( std::ostream& os ) const {
-            for( int i = 1; i <= m_highestSpecifiedArgPosition; ++i ) {
-                if( i > 1 )
-                    os << " ";
-                typename std::map<int, Arg>::const_iterator it = m_positionalArgs.find( i );
-                if( it != m_positionalArgs.end() )
-                    os << "<" << it->second.placeholder << ">";
-                else if( m_floatingArg.get() )
-                    os << "<" << m_floatingArg->placeholder << ">";
-                else
-                    throw std::logic_error( "non consecutive positional arguments with no floating args" );
-            }
-            // !TBD No indication of mandatory args
-            if( m_floatingArg.get() ) {
-                if( m_highestSpecifiedArgPosition > 1 )
-                    os << " ";
-                os << "[<" << m_floatingArg->placeholder << "> ...]";
-            }
-        }
-        std::string argSynopsis() const {
-            std::ostringstream oss;
-            argSynopsis( oss );
-            return oss.str();
+        void reset() {
+            if( nullableValue )
+                nullableValue->~T();
+            nullableValue = nullptr;
         }
 
-        void usage( std::ostream& os, std::string const& procName ) const {
-            validate();
-            os << "usage:\n  " << procName << " ";
-            argSynopsis( os );
-            if( !m_options.empty() ) {
-                os << " [options]\n\nwhere options are: \n";
-                optUsage( os, 2 );
-            }
-            os << "\n";
-        }
-        std::string usage( std::string const& procName ) const {
-            std::ostringstream oss;
-            usage( oss, procName );
-            return oss.str();
-        }
+        T& operator*() { return *nullableValue; }
+        T const& operator*() const { return *nullableValue; }
+        T* operator->() { return nullableValue; }
+        const T* operator->() const { return nullableValue; }
 
-        ConfigT parse( std::vector<std::string> const& args ) const {
-            ConfigT config;
-            parseInto( args, config );
-            return config;
-        }
-
-        std::vector<Parser::Token> parseInto( std::vector<std::string> const& args, ConfigT& config ) const {
-            std::string processName = args[0];
-            std::size_t lastSlash = processName.find_last_of( "/\\" );
-            if( lastSlash != std::string::npos )
-                processName = processName.substr( lastSlash+1 );
-            m_boundProcessName.set( config, processName );
-            std::vector<Parser::Token> tokens;
-            Parser parser;
-            parser.parseIntoTokens( args, tokens );
-            return populate( tokens, config );
-        }
-
-        std::vector<Parser::Token> populate( std::vector<Parser::Token> const& tokens, ConfigT& config ) const {
-            validate();
-            std::vector<Parser::Token> unusedTokens = populateOptions( tokens, config );
-            unusedTokens = populateFixedArgs( unusedTokens, config );
-            unusedTokens = populateFloatingArgs( unusedTokens, config );
-            return unusedTokens;
-        }
-
-        std::vector<Parser::Token> populateOptions( std::vector<Parser::Token> const& tokens, ConfigT& config ) const {
-            std::vector<Parser::Token> unusedTokens;
-            std::vector<std::string> errors;
-            for( std::size_t i = 0; i < tokens.size(); ++i ) {
-                Parser::Token const& token = tokens[i];
-                typename std::vector<Arg>::const_iterator it = m_options.begin(), itEnd = m_options.end();
-                for(; it != itEnd; ++it ) {
-                    Arg const& arg = *it;
-
-                    try {
-                        if( ( token.type == Parser::Token::ShortOpt && arg.hasShortName( token.data ) ) ||
-                            ( token.type == Parser::Token::LongOpt && arg.hasLongName( token.data ) ) ) {
-                            if( arg.takesArg() ) {
-                                if( i == tokens.size()-1 || tokens[i+1].type != Parser::Token::Positional )
-                                    errors.push_back( "Expected argument to option: " + token.data );
-                                else
-                                    arg.boundField.set( config, tokens[++i].data );
-                            }
-                            else {
-                                arg.boundField.set( config, "true" );
-                            }
-                            break;
-                        }
-                    }
-                    catch( std::exception& ex ) {
-                        errors.push_back( std::string( ex.what() ) + "\n- while parsing: (" + arg.commands() + ")" );
-                    }
-                }
-                if( it == itEnd ) {
-                    if( token.type == Parser::Token::Positional || !m_throwOnUnrecognisedTokens )
-                        unusedTokens.push_back( token );
-                    else if( errors.empty() && m_throwOnUnrecognisedTokens )
-                        errors.push_back( "unrecognised option: " + token.data );
-                }
-            }
-            if( !errors.empty() ) {
-                std::ostringstream oss;
-                for( std::vector<std::string>::const_iterator it = errors.begin(), itEnd = errors.end();
-                        it != itEnd;
-                        ++it ) {
-                    if( it != errors.begin() )
-                        oss << "\n";
-                    oss << *it;
-                }
-                throw std::runtime_error( oss.str() );
-            }
-            return unusedTokens;
-        }
-        std::vector<Parser::Token> populateFixedArgs( std::vector<Parser::Token> const& tokens, ConfigT& config ) const {
-            std::vector<Parser::Token> unusedTokens;
-            int position = 1;
-            for( std::size_t i = 0; i < tokens.size(); ++i ) {
-                Parser::Token const& token = tokens[i];
-                typename std::map<int, Arg>::const_iterator it = m_positionalArgs.find( position );
-                if( it != m_positionalArgs.end() )
-                    it->second.boundField.set( config, token.data );
-                else
-                    unusedTokens.push_back( token );
-                if( token.type == Parser::Token::Positional )
-                    position++;
-            }
-            return unusedTokens;
-        }
-        std::vector<Parser::Token> populateFloatingArgs( std::vector<Parser::Token> const& tokens, ConfigT& config ) const {
-            if( !m_floatingArg.get() )
-                return tokens;
-            std::vector<Parser::Token> unusedTokens;
-            for( std::size_t i = 0; i < tokens.size(); ++i ) {
-                Parser::Token const& token = tokens[i];
-                if( token.type == Parser::Token::Positional )
-                    m_floatingArg->boundField.set( config, token.data );
-                else
-                    unusedTokens.push_back( token );
-            }
-            return unusedTokens;
+        T valueOr( T const& defaultValue ) const {
+            return nullableValue ? *nullableValue : defaultValue;
         }
 
-        void validate() const
-        {
-            if( m_options.empty() && m_positionalArgs.empty() && !m_floatingArg.get() )
-                throw std::logic_error( "No options or arguments specified" );
+        bool some() const { return nullableValue != nullptr; }
+        bool none() const { return nullableValue == nullptr; }
 
-            for( typename std::vector<Arg>::const_iterator  it = m_options.begin(),
-                                                            itEnd = m_options.end();
-                    it != itEnd; ++it )
-                it->validate();
+        bool operator !() const { return nullableValue == nullptr; }
+        explicit operator bool() const {
+            return some();
         }
 
     private:
-        Detail::BoundArgFunction<ConfigT> m_boundProcessName;
-        std::vector<Arg> m_options;
-        std::map<int, Arg> m_positionalArgs;
-        ArgAutoPtr m_floatingArg;
-        int m_highestSpecifiedArgPosition;
-        bool m_throwOnUnrecognisedTokens;
+        T *nullableValue;
+        alignas(alignof(T)) char storage[sizeof(T)];
     };
 
-} // end namespace Clara
-
-STITCH_CLARA_CLOSE_NAMESPACE
-#undef STITCH_CLARA_OPEN_NAMESPACE
-#undef STITCH_CLARA_CLOSE_NAMESPACE
-
-#endif // TWOBLUECUBES_CLARA_H_INCLUDED
-#undef STITCH_CLARA_OPEN_NAMESPACE
-
-// Restore Clara's value for console width, if present
-#ifdef CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH
-#define CLARA_CONFIG_CONSOLE_WIDTH CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH
-#undef CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH
-#endif
-
-#include <fstream>
-
-namespace Catch {
-
-    inline void abortAfterFirst( ConfigData& config ) { config.abortAfter = 1; }
-    inline void abortAfterX( ConfigData& config, int x ) {
-        if( x < 1 )
-            throw std::runtime_error( "Value after -x or --abortAfter must be greater than zero" );
-        config.abortAfter = x;
-    }
-    inline void addTestOrTags( ConfigData& config, std::string const& _testSpec ) { config.testsOrTags.push_back( _testSpec ); }
-    inline void addReporterName( ConfigData& config, std::string const& _reporterName ) { config.reporterNames.push_back( _reporterName ); }
-
-    inline void addWarning( ConfigData& config, std::string const& _warning ) {
-        if( _warning == "NoAssertions" )
-            config.warnings = static_cast<WarnAbout::What>( config.warnings | WarnAbout::NoAssertions );
-        else
-            throw std::runtime_error( "Unrecognised warning: '" + _warning + "'" );
-    }
-    inline void setOrder( ConfigData& config, std::string const& order ) {
-        if( startsWith( "declared", order ) )
-            config.runOrder = RunTests::InDeclarationOrder;
-        else if( startsWith( "lexical", order ) )
-            config.runOrder = RunTests::InLexicographicalOrder;
-        else if( startsWith( "random", order ) )
-            config.runOrder = RunTests::InRandomOrder;
-        else
-            throw std::runtime_error( "Unrecognised ordering: '" + order + "'" );
-    }
-    inline void setRngSeed( ConfigData& config, std::string const& seed ) {
-        if( seed == "time" ) {
-            config.rngSeed = static_cast<unsigned int>( std::time(0) );
-        }
-        else {
-            std::stringstream ss;
-            ss << seed;
-            ss >> config.rngSeed;
-            if( ss.fail() )
-                throw std::runtime_error( "Argment to --rng-seed should be the word 'time' or a number" );
-        }
-    }
-    inline void setVerbosity( ConfigData& config, int level ) {
-        // !TBD: accept strings?
-        config.verbosity = static_cast<Verbosity::Level>( level );
-    }
-    inline void setShowDurations( ConfigData& config, bool _showDurations ) {
-        config.showDurations = _showDurations
-            ? ShowDurations::Always
-            : ShowDurations::Never;
-    }
-    inline void setUseColour( ConfigData& config, std::string const& value ) {
-        std::string mode = toLower( value );
-
-        if( mode == "yes" )
-            config.useColour = UseColour::Yes;
-        else if( mode == "no" )
-            config.useColour = UseColour::No;
-        else if( mode == "auto" )
-            config.useColour = UseColour::Auto;
-        else
-            throw std::runtime_error( "colour mode must be one of: auto, yes or no" );
-    }
-    inline void forceColour( ConfigData& config ) {
-        config.useColour = UseColour::Yes;
-    }
-    inline void loadTestNamesFromFile( ConfigData& config, std::string const& _filename ) {
-        std::ifstream f( _filename.c_str() );
-        if( !f.is_open() )
-            throw std::domain_error( "Unable to load input file: " + _filename );
-
-        std::string line;
-        while( std::getline( f, line ) ) {
-            line = trim(line);
-            if( !line.empty() && !startsWith( line, "#" ) )
-                addTestOrTags( config, "\"" + line + "\"," );
-        }
-    }
-
-    inline Clara::CommandLine<ConfigData> makeCommandLineParser() {
-
-        using namespace Clara;
-        CommandLine<ConfigData> cli;
-
-        cli.bindProcessName( &ConfigData::processName );
-
-        cli["-?"]["-h"]["--help"]
-            .describe( "display usage information" )
-            .bind( &ConfigData::showHelp );
-
-        cli["-l"]["--list-tests"]
-            .describe( "list all/matching test cases" )
-            .bind( &ConfigData::listTests );
-
-        cli["-t"]["--list-tags"]
-            .describe( "list all/matching tags" )
-            .bind( &ConfigData::listTags );
-
-        cli["-s"]["--success"]
-            .describe( "include successful tests in output" )
-            .bind( &ConfigData::showSuccessfulTests );
-
-        cli["-b"]["--break"]
-            .describe( "break into debugger on failure" )
-            .bind( &ConfigData::shouldDebugBreak );
-
-        cli["-e"]["--nothrow"]
-            .describe( "skip exception tests" )
-            .bind( &ConfigData::noThrow );
-
-        cli["-i"]["--invisibles"]
-            .describe( "show invisibles (tabs, newlines)" )
-            .bind( &ConfigData::showInvisibles );
-
-        cli["-o"]["--out"]
-            .describe( "output filename" )
-            .bind( &ConfigData::outputFilename, "filename" );
-
-        cli["-r"]["--reporter"]
-//            .placeholder( "name[:filename]" )
-            .describe( "reporter to use (defaults to console)" )
-            .bind( &addReporterName, "name" );
-
-        cli["-n"]["--name"]
-            .describe( "suite name" )
-            .bind( &ConfigData::name, "name" );
-
-        cli["-a"]["--abort"]
-            .describe( "abort at first failure" )
-            .bind( &abortAfterFirst );
-
-        cli["-x"]["--abortx"]
-            .describe( "abort after x failures" )
-            .bind( &abortAfterX, "no. failures" );
-
-        cli["-w"]["--warn"]
-            .describe( "enable warnings" )
-            .bind( &addWarning, "warning name" );
-
-// - needs updating if reinstated
-//        cli.into( &setVerbosity )
-//            .describe( "level of verbosity (0=no output)" )
-//            .shortOpt( "v")
-//            .longOpt( "verbosity" )
-//            .placeholder( "level" );
-
-        cli[_]
-            .describe( "which test or tests to use" )
-            .bind( &addTestOrTags, "test name, pattern or tags" );
-
-        cli["-d"]["--durations"]
-            .describe( "show test durations" )
-            .bind( &setShowDurations, "yes|no" );
-
-        cli["-f"]["--input-file"]
-            .describe( "load test names to run from a file" )
-            .bind( &loadTestNamesFromFile, "filename" );
-
-        cli["-#"]["--filenames-as-tags"]
-            .describe( "adds a tag for the filename" )
-            .bind( &ConfigData::filenamesAsTags );
-
-        // Less common commands which don't have a short form
-        cli["--list-test-names-only"]
-            .describe( "list all/matching test cases names only" )
-            .bind( &ConfigData::listTestNamesOnly );
-
-        cli["--list-reporters"]
-            .describe( "list all reporters" )
-            .bind( &ConfigData::listReporters );
-
-        cli["--order"]
-            .describe( "test case order (defaults to decl)" )
-            .bind( &setOrder, "decl|lex|rand" );
-
-        cli["--rng-seed"]
-            .describe( "set a specific seed for random numbers" )
-            .bind( &setRngSeed, "'time'|number" );
-
-        cli["--force-colour"]
-            .describe( "force colourised output (deprecated)" )
-            .bind( &forceColour );
-
-        cli["--use-colour"]
-            .describe( "should output be colourised" )
-            .bind( &setUseColour, "yes|no" );
-
-        return cli;
-    }
-
 } // end namespace Catch
 
-// #included from: internal/catch_list.hpp
-#define TWOBLUECUBES_CATCH_LIST_HPP_INCLUDED
-
-// #included from: catch_text.h
-#define TWOBLUECUBES_CATCH_TEXT_H_INCLUDED
-
-#define TBC_TEXT_FORMAT_CONSOLE_WIDTH CATCH_CONFIG_CONSOLE_WIDTH
-
-#define CLICHE_TBC_TEXT_FORMAT_OUTER_NAMESPACE Catch
-// #included from: ../external/tbc_text_format.h
-// Only use header guard if we are not using an outer namespace
-#ifndef CLICHE_TBC_TEXT_FORMAT_OUTER_NAMESPACE
-# ifdef TWOBLUECUBES_TEXT_FORMAT_H_INCLUDED
-#  ifndef TWOBLUECUBES_TEXT_FORMAT_H_ALREADY_INCLUDED
-#   define TWOBLUECUBES_TEXT_FORMAT_H_ALREADY_INCLUDED
-#  endif
-# else
-#  define TWOBLUECUBES_TEXT_FORMAT_H_INCLUDED
-# endif
-#endif
-#ifndef TWOBLUECUBES_TEXT_FORMAT_H_ALREADY_INCLUDED
+// end catch_option.hpp
 #include <string>
-#include <vector>
-#include <sstream>
-
-// Use optional outer namespace
-#ifdef CLICHE_TBC_TEXT_FORMAT_OUTER_NAMESPACE
-namespace CLICHE_TBC_TEXT_FORMAT_OUTER_NAMESPACE {
-#endif
-
-namespace Tbc {
-
-#ifdef TBC_TEXT_FORMAT_CONSOLE_WIDTH
-    const unsigned int consoleWidth = TBC_TEXT_FORMAT_CONSOLE_WIDTH;
-#else
-    const unsigned int consoleWidth = 80;
-#endif
-
-    struct TextAttributes {
-        TextAttributes()
-        :   initialIndent( std::string::npos ),
-            indent( 0 ),
-            width( consoleWidth-1 ),
-            tabChar( '\t' )
-        {}
-
-        TextAttributes& setInitialIndent( std::size_t _value )  { initialIndent = _value; return *this; }
-        TextAttributes& setIndent( std::size_t _value )         { indent = _value; return *this; }
-        TextAttributes& setWidth( std::size_t _value )          { width = _value; return *this; }
-        TextAttributes& setTabChar( char _value )               { tabChar = _value; return *this; }
-
-        std::size_t initialIndent;  // indent of first line, or npos
-        std::size_t indent;         // indent of subsequent lines, or all if initialIndent is npos
-        std::size_t width;          // maximum width of text, including indent. Longer text will wrap
-        char tabChar;               // If this char is seen the indent is changed to current pos
-    };
-
-    class Text {
-    public:
-        Text( std::string const& _str, TextAttributes const& _attr = TextAttributes() )
-        : attr( _attr )
-        {
-            std::string wrappableChars = " [({.,/|\\-";
-            std::size_t indent = _attr.initialIndent != std::string::npos
-                ? _attr.initialIndent
-                : _attr.indent;
-            std::string remainder = _str;
-
-            while( !remainder.empty() ) {
-                if( lines.size() >= 1000 ) {
-                    lines.push_back( "... message truncated due to excessive size" );
-                    return;
-                }
-                std::size_t tabPos = std::string::npos;
-                std::size_t width = (std::min)( remainder.size(), _attr.width - indent );
-                std::size_t pos = remainder.find_first_of( '\n' );
-                if( pos <= width ) {
-                    width = pos;
-                }
-                pos = remainder.find_last_of( _attr.tabChar, width );
-                if( pos != std::string::npos ) {
-                    tabPos = pos;
-                    if( remainder[width] == '\n' )
-                        width--;
-                    remainder = remainder.substr( 0, tabPos ) + remainder.substr( tabPos+1 );
-                }
-
-                if( width == remainder.size() ) {
-                    spliceLine( indent, remainder, width );
-                }
-                else if( remainder[width] == '\n' ) {
-                    spliceLine( indent, remainder, width );
-                    if( width <= 1 || remainder.size() != 1 )
-                        remainder = remainder.substr( 1 );
-                    indent = _attr.indent;
-                }
-                else {
-                    pos = remainder.find_last_of( wrappableChars, width );
-                    if( pos != std::string::npos && pos > 0 ) {
-                        spliceLine( indent, remainder, pos );
-                        if( remainder[0] == ' ' )
-                            remainder = remainder.substr( 1 );
-                    }
-                    else {
-                        spliceLine( indent, remainder, width-1 );
-                        lines.back() += "-";
-                    }
-                    if( lines.size() == 1 )
-                        indent = _attr.indent;
-                    if( tabPos != std::string::npos )
-                        indent += tabPos;
-                }
-            }
-        }
-
-        void spliceLine( std::size_t _indent, std::string& _remainder, std::size_t _pos ) {
-            lines.push_back( std::string( _indent, ' ' ) + _remainder.substr( 0, _pos ) );
-            _remainder = _remainder.substr( _pos );
-        }
-
-        typedef std::vector<std::string>::const_iterator const_iterator;
-
-        const_iterator begin() const { return lines.begin(); }
-        const_iterator end() const { return lines.end(); }
-        std::string const& last() const { return lines.back(); }
-        std::size_t size() const { return lines.size(); }
-        std::string const& operator[]( std::size_t _index ) const { return lines[_index]; }
-        std::string toString() const {
-            std::ostringstream oss;
-            oss << *this;
-            return oss.str();
-        }
-
-        inline friend std::ostream& operator << ( std::ostream& _stream, Text const& _text ) {
-            for( Text::const_iterator it = _text.begin(), itEnd = _text.end();
-                it != itEnd; ++it ) {
-                if( it != _text.begin() )
-                    _stream << "\n";
-                _stream << *it;
-            }
-            return _stream;
-        }
-
-    private:
-        std::string str;
-        TextAttributes attr;
-        std::vector<std::string> lines;
-    };
-
-} // end namespace Tbc
-
-#ifdef CLICHE_TBC_TEXT_FORMAT_OUTER_NAMESPACE
-} // end outer namespace
-#endif
-
-#endif // TWOBLUECUBES_TEXT_FORMAT_H_ALREADY_INCLUDED
-#undef CLICHE_TBC_TEXT_FORMAT_OUTER_NAMESPACE
-
-namespace Catch {
-    using Tbc::Text;
-    using Tbc::TextAttributes;
-}
-
-// #included from: catch_console_colour.hpp
-#define TWOBLUECUBES_CATCH_CONSOLE_COLOUR_HPP_INCLUDED
+#include <iosfwd>
+#include <map>
+#include <set>
+#include <memory>
 
 namespace Catch {
 
-    struct Colour {
-        enum Code {
-            None = 0,
-
-            White,
-            Red,
-            Green,
-            Blue,
-            Cyan,
-            Yellow,
-            Grey,
-
-            Bright = 0x10,
-
-            BrightRed = Bright | Red,
-            BrightGreen = Bright | Green,
-            LightGrey = Bright | Grey,
-            BrightWhite = Bright | White,
-
-            // By intention
-            FileName = LightGrey,
-            Warning = Yellow,
-            ResultError = BrightRed,
-            ResultSuccess = BrightGreen,
-            ResultExpectedFailure = Warning,
-
-            Error = BrightRed,
-            Success = Green,
-
-            OriginalExpression = Cyan,
-            ReconstructedExpression = Yellow,
-
-            SecondaryText = LightGrey,
-            Headers = White
-        };
-
-        // Use constructed object for RAII guard
-        Colour( Code _colourCode );
-        Colour( Colour const& other );
-        ~Colour();
-
-        // Use static method for one-shot changes
-        static void use( Code _colourCode );
-
-    private:
-        bool m_moved;
-    };
-
-    inline std::ostream& operator << ( std::ostream& os, Colour const& ) { return os; }
-
-} // end namespace Catch
-
-// #included from: catch_interfaces_reporter.h
-#define TWOBLUECUBES_CATCH_INTERFACES_REPORTER_H_INCLUDED
-
-#include <string>
-#include <ostream>
-#include <map>
-#include <assert.h>
-
-namespace Catch
-{
     struct ReporterConfig {
-        explicit ReporterConfig( Ptr<IConfig const> const& _fullConfig )
-        :   m_stream( &_fullConfig->stream() ), m_fullConfig( _fullConfig ) {}
+        explicit ReporterConfig( IConfigPtr const& _fullConfig );
 
-        ReporterConfig( Ptr<IConfig const> const& _fullConfig, std::ostream& _stream )
-        :   m_stream( &_stream ), m_fullConfig( _fullConfig ) {}
+        ReporterConfig( IConfigPtr const& _fullConfig, std::ostream& _stream );
 
-        std::ostream& stream() const    { return *m_stream; }
-        Ptr<IConfig const> fullConfig() const { return m_fullConfig; }
+        std::ostream& stream() const;
+        IConfigPtr fullConfig() const;
 
     private:
         std::ostream* m_stream;
-        Ptr<IConfig const> m_fullConfig;
+        IConfigPtr m_fullConfig;
     };
 
     struct ReporterPreferences {
-        ReporterPreferences()
-        : shouldRedirectStdOut( false )
-        {}
-
-        bool shouldRedirectStdOut;
+        bool shouldRedirectStdOut = false;
     };
 
     template<typename T>
     struct LazyStat : Option<T> {
-        LazyStat() : used( false ) {}
         LazyStat& operator=( T const& _value ) {
             Option<T>::operator=( _value );
             used = false;
@@ -5094,21 +3226,17 @@ namespace Catch
             Option<T>::reset();
             used = false;
         }
-        bool used;
+        bool used = false;
     };
 
     struct TestRunInfo {
-        TestRunInfo( std::string const& _name ) : name( _name ) {}
+        TestRunInfo( std::string const& _name );
         std::string name;
     };
     struct GroupInfo {
         GroupInfo(  std::string const& _name,
                     std::size_t _groupIndex,
-                    std::size_t _groupsCount )
-        :   name( _name ),
-            groupIndex( _groupIndex ),
-            groupsCounts( _groupsCount )
-        {}
+                    std::size_t _groupsCount );
 
         std::string name;
         std::size_t groupIndex;
@@ -5118,29 +3246,13 @@ namespace Catch
     struct AssertionStats {
         AssertionStats( AssertionResult const& _assertionResult,
                         std::vector<MessageInfo> const& _infoMessages,
-                        Totals const& _totals )
-        :   assertionResult( _assertionResult ),
-            infoMessages( _infoMessages ),
-            totals( _totals )
-        {
-            if( assertionResult.hasMessage() ) {
-                // Copy message into messages list.
-                // !TBD This should have been done earlier, somewhere
-                MessageBuilder builder( assertionResult.getTestMacroName(), assertionResult.getSourceInfo(), assertionResult.getResultType() );
-                builder << assertionResult.getMessage();
-                builder.m_info.message = builder.m_stream.str();
+                        Totals const& _totals );
 
-                infoMessages.push_back( builder.m_info );
-            }
-        }
-        virtual ~AssertionStats();
-
-#  ifdef CATCH_CONFIG_CPP11_GENERATED_METHODS
         AssertionStats( AssertionStats const& )              = default;
         AssertionStats( AssertionStats && )                  = default;
         AssertionStats& operator = ( AssertionStats const& ) = default;
         AssertionStats& operator = ( AssertionStats && )     = default;
-#  endif
+        virtual ~AssertionStats();
 
         AssertionResult assertionResult;
         std::vector<MessageInfo> infoMessages;
@@ -5151,19 +3263,12 @@ namespace Catch
         SectionStats(   SectionInfo const& _sectionInfo,
                         Counts const& _assertions,
                         double _durationInSeconds,
-                        bool _missingAssertions )
-        :   sectionInfo( _sectionInfo ),
-            assertions( _assertions ),
-            durationInSeconds( _durationInSeconds ),
-            missingAssertions( _missingAssertions )
-        {}
-        virtual ~SectionStats();
-#  ifdef CATCH_CONFIG_CPP11_GENERATED_METHODS
+                        bool _missingAssertions );
         SectionStats( SectionStats const& )              = default;
         SectionStats( SectionStats && )                  = default;
         SectionStats& operator = ( SectionStats const& ) = default;
         SectionStats& operator = ( SectionStats && )     = default;
-#  endif
+        virtual ~SectionStats();
 
         SectionInfo sectionInfo;
         Counts assertions;
@@ -5176,21 +3281,13 @@ namespace Catch
                         Totals const& _totals,
                         std::string const& _stdOut,
                         std::string const& _stdErr,
-                        bool _aborting )
-        : testInfo( _testInfo ),
-            totals( _totals ),
-            stdOut( _stdOut ),
-            stdErr( _stdErr ),
-            aborting( _aborting )
-        {}
-        virtual ~TestCaseStats();
+                        bool _aborting );
 
-#  ifdef CATCH_CONFIG_CPP11_GENERATED_METHODS
         TestCaseStats( TestCaseStats const& )              = default;
         TestCaseStats( TestCaseStats && )                  = default;
         TestCaseStats& operator = ( TestCaseStats const& ) = default;
         TestCaseStats& operator = ( TestCaseStats && )     = default;
-#  endif
+        virtual ~TestCaseStats();
 
         TestCaseInfo testInfo;
         Totals totals;
@@ -5202,23 +3299,14 @@ namespace Catch
     struct TestGroupStats {
         TestGroupStats( GroupInfo const& _groupInfo,
                         Totals const& _totals,
-                        bool _aborting )
-        :   groupInfo( _groupInfo ),
-            totals( _totals ),
-            aborting( _aborting )
-        {}
-        TestGroupStats( GroupInfo const& _groupInfo )
-        :   groupInfo( _groupInfo ),
-            aborting( false )
-        {}
-        virtual ~TestGroupStats();
+                        bool _aborting );
+        TestGroupStats( GroupInfo const& _groupInfo );
 
-#  ifdef CATCH_CONFIG_CPP11_GENERATED_METHODS
         TestGroupStats( TestGroupStats const& )              = default;
         TestGroupStats( TestGroupStats && )                  = default;
         TestGroupStats& operator = ( TestGroupStats const& ) = default;
         TestGroupStats& operator = ( TestGroupStats && )     = default;
-#  endif
+        virtual ~TestGroupStats();
 
         GroupInfo groupInfo;
         Totals totals;
@@ -5228,38 +3316,34 @@ namespace Catch
     struct TestRunStats {
         TestRunStats(   TestRunInfo const& _runInfo,
                         Totals const& _totals,
-                        bool _aborting )
-        :   runInfo( _runInfo ),
-            totals( _totals ),
-            aborting( _aborting )
-        {}
-        virtual ~TestRunStats();
+                        bool _aborting );
 
-#  ifndef CATCH_CONFIG_CPP11_GENERATED_METHODS
-        TestRunStats( TestRunStats const& _other )
-        :   runInfo( _other.runInfo ),
-            totals( _other.totals ),
-            aborting( _other.aborting )
-        {}
-#  else
         TestRunStats( TestRunStats const& )              = default;
         TestRunStats( TestRunStats && )                  = default;
         TestRunStats& operator = ( TestRunStats const& ) = default;
         TestRunStats& operator = ( TestRunStats && )     = default;
-#  endif
+        virtual ~TestRunStats();
 
         TestRunInfo runInfo;
         Totals totals;
         bool aborting;
     };
 
-    class MultipleReporters;
+    struct BenchmarkInfo {
+        std::string name;
+    };
+    struct BenchmarkStats {
+        BenchmarkInfo info;
+        std::size_t iterations;
+        uint64_t elapsedTimeInNanoseconds;
+    };
 
-    struct IStreamingReporter : IShared {
-        virtual ~IStreamingReporter();
+    struct IStreamingReporter {
+        virtual ~IStreamingReporter() = default;
 
-        // Implementing class must also provide the following static method:
+        // Implementing class must also provide the following static methods:
         // static std::string getDescription();
+        // static std::set<Verbosity> getSupportedVerbosities()
 
         virtual ReporterPreferences getPreferences() const = 0;
 
@@ -5271,11 +3355,17 @@ namespace Catch
         virtual void testCaseStarting( TestCaseInfo const& testInfo ) = 0;
         virtual void sectionStarting( SectionInfo const& sectionInfo ) = 0;
 
+        // *** experimental ***
+        virtual void benchmarkStarting( BenchmarkInfo const& ) {}
+
         virtual void assertionStarting( AssertionInfo const& assertionInfo ) = 0;
 
         // The return value indicates if the messages buffer should be cleared:
         virtual bool assertionEnded( AssertionStats const& assertionStats ) = 0;
 
+        // *** experimental ***
+        virtual void benchmarkEnded( BenchmarkStats const& ) {}
+
         virtual void sectionEnded( SectionStats const& sectionStats ) = 0;
         virtual void testCaseEnded( TestCaseStats const& testCaseStats ) = 0;
         virtual void testGroupEnded( TestGroupStats const& testGroupStats ) = 0;
@@ -5283,207 +3373,453 @@ namespace Catch
 
         virtual void skipTest( TestCaseInfo const& testInfo ) = 0;
 
-        virtual MultipleReporters* tryAsMulti() { return CATCH_NULL; }
+        // Default empty implementation provided
+        virtual void fatalErrorEncountered( StringRef name );
+
+        virtual bool isMulti() const;
     };
+    using IStreamingReporterPtr = std::unique_ptr<IStreamingReporter>;
 
-    struct IReporterFactory : IShared {
+    struct IReporterFactory {
         virtual ~IReporterFactory();
-        virtual IStreamingReporter* create( ReporterConfig const& config ) const = 0;
+        virtual IStreamingReporterPtr create( ReporterConfig const& config ) const = 0;
         virtual std::string getDescription() const = 0;
     };
+    using IReporterFactoryPtr = std::shared_ptr<IReporterFactory>;
 
     struct IReporterRegistry {
-        typedef std::map<std::string, Ptr<IReporterFactory> > FactoryMap;
-        typedef std::vector<Ptr<IReporterFactory> > Listeners;
+        using FactoryMap = std::map<std::string, IReporterFactoryPtr>;
+        using Listeners = std::vector<IReporterFactoryPtr>;
 
         virtual ~IReporterRegistry();
-        virtual IStreamingReporter* create( std::string const& name, Ptr<IConfig const> const& config ) const = 0;
+        virtual IStreamingReporterPtr create( std::string const& name, IConfigPtr const& config ) const = 0;
         virtual FactoryMap const& getFactories() const = 0;
         virtual Listeners const& getListeners() const = 0;
     };
 
-    Ptr<IStreamingReporter> addReporter( Ptr<IStreamingReporter> const& existingReporter, Ptr<IStreamingReporter> const& additionalReporter );
+    void addReporter( IStreamingReporterPtr& existingReporter, IStreamingReporterPtr&& additionalReporter );
 
-}
+} // end namespace Catch
 
-#include <limits>
+// end catch_interfaces_reporter.h
 #include <algorithm>
+#include <cstring>
+#include <cfloat>
+#include <cstdio>
+#include <assert.h>
+#include <memory>
 
 namespace Catch {
+    void prepareExpandedExpression(AssertionResult& result);
 
-    inline std::size_t listTests( Config const& config ) {
+    // Returns double formatted as %.3f (format expected on output)
+    std::string getFormattedDuration( double duration );
 
-        TestSpec testSpec = config.testSpec();
-        if( config.testSpec().hasFilters() )
-            Catch::cout() << "Matching test cases:\n";
-        else {
-            Catch::cout() << "All available test cases:\n";
-            testSpec = TestSpecParser( ITagAliasRegistry::get() ).parse( "*" ).testSpec();
+    template<typename DerivedT>
+    struct StreamingReporterBase : IStreamingReporter {
+
+        StreamingReporterBase( ReporterConfig const& _config )
+        :   m_config( _config.fullConfig() ),
+            stream( _config.stream() )
+        {
+            m_reporterPrefs.shouldRedirectStdOut = false;
+            CATCH_ENFORCE( DerivedT::getSupportedVerbosities().count( m_config->verbosity() ), "Verbosity level not supported by this reporter" );
         }
 
-        std::size_t matchedTests = 0;
-        TextAttributes nameAttr, tagsAttr;
-        nameAttr.setInitialIndent( 2 ).setIndent( 4 );
-        tagsAttr.setIndent( 6 );
+        ReporterPreferences getPreferences() const override {
+            return m_reporterPrefs;
+        }
 
-        std::vector<TestCase> matchedTestCases = filterTests( getAllTestCasesSorted( config ), testSpec, config );
-        for( std::vector<TestCase>::const_iterator it = matchedTestCases.begin(), itEnd = matchedTestCases.end();
-                it != itEnd;
-                ++it ) {
-            matchedTests++;
-            TestCaseInfo const& testCaseInfo = it->getTestCaseInfo();
-            Colour::Code colour = testCaseInfo.isHidden()
-                ? Colour::SecondaryText
-                : Colour::None;
-            Colour colourGuard( colour );
+        static std::set<Verbosity> getSupportedVerbosities() {
+            return { Verbosity::Normal };
+        }
 
-            Catch::cout() << Text( testCaseInfo.name, nameAttr ) << std::endl;
-            if( !testCaseInfo.tags.empty() )
-                Catch::cout() << Text( testCaseInfo.tagsAsString, tagsAttr ) << std::endl;
+        ~StreamingReporterBase() override = default;
+
+        void noMatchingTestCases(std::string const&) override {}
+
+        void testRunStarting(TestRunInfo const& _testRunInfo) override {
+            currentTestRunInfo = _testRunInfo;
+        }
+        void testGroupStarting(GroupInfo const& _groupInfo) override {
+            currentGroupInfo = _groupInfo;
         }
 
-        if( !config.testSpec().hasFilters() )
-            Catch::cout() << pluralise( matchedTests, "test case" ) << "\n" << std::endl;
-        else
-            Catch::cout() << pluralise( matchedTests, "matching test case" ) << "\n" << std::endl;
-        return matchedTests;
-    }
+        void testCaseStarting(TestCaseInfo const& _testInfo) override  {
+            currentTestCaseInfo = _testInfo;
+        }
+        void sectionStarting(SectionInfo const& _sectionInfo) override {
+            m_sectionStack.push_back(_sectionInfo);
+        }
 
-    inline std::size_t listTestsNamesOnly( Config const& config ) {
-        TestSpec testSpec = config.testSpec();
-        if( !config.testSpec().hasFilters() )
-            testSpec = TestSpecParser( ITagAliasRegistry::get() ).parse( "*" ).testSpec();
-        std::size_t matchedTests = 0;
-        std::vector<TestCase> matchedTestCases = filterTests( getAllTestCasesSorted( config ), testSpec, config );
-        for( std::vector<TestCase>::const_iterator it = matchedTestCases.begin(), itEnd = matchedTestCases.end();
-                it != itEnd;
-                ++it ) {
-            matchedTests++;
-            TestCaseInfo const& testCaseInfo = it->getTestCaseInfo();
-            Catch::cout() << testCaseInfo.name << std::endl;
+        void sectionEnded(SectionStats const& /* _sectionStats */) override {
+            m_sectionStack.pop_back();
+        }
+        void testCaseEnded(TestCaseStats const& /* _testCaseStats */) override {
+            currentTestCaseInfo.reset();
+        }
+        void testGroupEnded(TestGroupStats const& /* _testGroupStats */) override {
+            currentGroupInfo.reset();
+        }
+        void testRunEnded(TestRunStats const& /* _testRunStats */) override {
+            currentTestCaseInfo.reset();
+            currentGroupInfo.reset();
+            currentTestRunInfo.reset();
         }
-        return matchedTests;
-    }
 
-    struct TagInfo {
-        TagInfo() : count ( 0 ) {}
-        void add( std::string const& spelling ) {
-            ++count;
-            spellings.insert( spelling );
-        }
-        std::string all() const {
-            std::string out;
-            for( std::set<std::string>::const_iterator it = spellings.begin(), itEnd = spellings.end();
-                        it != itEnd;
-                        ++it )
-                out += "[" + *it + "]";
-            return out;
+        void skipTest(TestCaseInfo const&) override {
+            // Don't do anything with this by default.
+            // It can optionally be overridden in the derived class.
         }
-        std::set<std::string> spellings;
-        std::size_t count;
+
+        IConfigPtr m_config;
+        std::ostream& stream;
+
+        LazyStat<TestRunInfo> currentTestRunInfo;
+        LazyStat<GroupInfo> currentGroupInfo;
+        LazyStat<TestCaseInfo> currentTestCaseInfo;
+
+        std::vector<SectionInfo> m_sectionStack;
+        ReporterPreferences m_reporterPrefs;
     };
 
-    inline std::size_t listTags( Config const& config ) {
-        TestSpec testSpec = config.testSpec();
-        if( config.testSpec().hasFilters() )
-            Catch::cout() << "Tags for matching test cases:\n";
-        else {
-            Catch::cout() << "All available tags:\n";
-            testSpec = TestSpecParser( ITagAliasRegistry::get() ).parse( "*" ).testSpec();
+    template<typename DerivedT>
+    struct CumulativeReporterBase : IStreamingReporter {
+        template<typename T, typename ChildNodeT>
+        struct Node {
+            explicit Node( T const& _value ) : value( _value ) {}
+            virtual ~Node() {}
+
+            using ChildNodes = std::vector<std::shared_ptr<ChildNodeT>>;
+            T value;
+            ChildNodes children;
+        };
+        struct SectionNode {
+            explicit SectionNode(SectionStats const& _stats) : stats(_stats) {}
+            virtual ~SectionNode() = default;
+
+            bool operator == (SectionNode const& other) const {
+                return stats.sectionInfo.lineInfo == other.stats.sectionInfo.lineInfo;
+            }
+            bool operator == (std::shared_ptr<SectionNode> const& other) const {
+                return operator==(*other);
+            }
+
+            SectionStats stats;
+            using ChildSections = std::vector<std::shared_ptr<SectionNode>>;
+            using Assertions = std::vector<AssertionStats>;
+            ChildSections childSections;
+            Assertions assertions;
+            std::string stdOut;
+            std::string stdErr;
+        };
+
+        struct BySectionInfo {
+            BySectionInfo( SectionInfo const& other ) : m_other( other ) {}
+            BySectionInfo( BySectionInfo const& other ) : m_other( other.m_other ) {}
+            bool operator() (std::shared_ptr<SectionNode> const& node) const {
+                return ((node->stats.sectionInfo.name == m_other.name) &&
+                        (node->stats.sectionInfo.lineInfo == m_other.lineInfo));
+            }
+            void operator=(BySectionInfo const&) = delete;
+
+        private:
+            SectionInfo const& m_other;
+        };
+
+        using TestCaseNode = Node<TestCaseStats, SectionNode>;
+        using TestGroupNode = Node<TestGroupStats, TestCaseNode>;
+        using TestRunNode = Node<TestRunStats, TestGroupNode>;
+
+        CumulativeReporterBase( ReporterConfig const& _config )
+        :   m_config( _config.fullConfig() ),
+            stream( _config.stream() )
+        {
+            m_reporterPrefs.shouldRedirectStdOut = false;
+            CATCH_ENFORCE( DerivedT::getSupportedVerbosities().count( m_config->verbosity() ), "Verbosity level not supported by this reporter" );
         }
+        ~CumulativeReporterBase() override = default;
 
-        std::map<std::string, TagInfo> tagCounts;
+        ReporterPreferences getPreferences() const override {
+            return m_reporterPrefs;
+        }
 
-        std::vector<TestCase> matchedTestCases = filterTests( getAllTestCasesSorted( config ), testSpec, config );
-        for( std::vector<TestCase>::const_iterator it = matchedTestCases.begin(), itEnd = matchedTestCases.end();
-                it != itEnd;
-                ++it ) {
-            for( std::set<std::string>::const_iterator  tagIt = it->getTestCaseInfo().tags.begin(),
-                                                        tagItEnd = it->getTestCaseInfo().tags.end();
-                    tagIt != tagItEnd;
-                    ++tagIt ) {
-                std::string tagName = *tagIt;
-                std::string lcaseTagName = toLower( tagName );
-                std::map<std::string, TagInfo>::iterator countIt = tagCounts.find( lcaseTagName );
-                if( countIt == tagCounts.end() )
-                    countIt = tagCounts.insert( std::make_pair( lcaseTagName, TagInfo() ) ).first;
-                countIt->second.add( tagName );
+        static std::set<Verbosity> getSupportedVerbosities() {
+            return { Verbosity::Normal };
+        }
+
+        void testRunStarting( TestRunInfo const& ) override {}
+        void testGroupStarting( GroupInfo const& ) override {}
+
+        void testCaseStarting( TestCaseInfo const& ) override {}
+
+        void sectionStarting( SectionInfo const& sectionInfo ) override {
+            SectionStats incompleteStats( sectionInfo, Counts(), 0, false );
+            std::shared_ptr<SectionNode> node;
+            if( m_sectionStack.empty() ) {
+                if( !m_rootSection )
+                    m_rootSection = std::make_shared<SectionNode>( incompleteStats );
+                node = m_rootSection;
             }
+            else {
+                SectionNode& parentNode = *m_sectionStack.back();
+                auto it =
+                    std::find_if(   parentNode.childSections.begin(),
+                                    parentNode.childSections.end(),
+                                    BySectionInfo( sectionInfo ) );
+                if( it == parentNode.childSections.end() ) {
+                    node = std::make_shared<SectionNode>( incompleteStats );
+                    parentNode.childSections.push_back( node );
+                }
+                else
+                    node = *it;
+            }
+            m_sectionStack.push_back( node );
+            m_deepestSection = std::move(node);
         }
 
-        for( std::map<std::string, TagInfo>::const_iterator countIt = tagCounts.begin(),
-                                                            countItEnd = tagCounts.end();
-                countIt != countItEnd;
-                ++countIt ) {
-            std::ostringstream oss;
-            oss << "  " << std::setw(2) << countIt->second.count << "  ";
-            Text wrapper( countIt->second.all(), TextAttributes()
-                                                    .setInitialIndent( 0 )
-                                                    .setIndent( oss.str().size() )
-                                                    .setWidth( CATCH_CONFIG_CONSOLE_WIDTH-10 ) );
-            Catch::cout() << oss.str() << wrapper << "\n";
-        }
-        Catch::cout() << pluralise( tagCounts.size(), "tag" ) << "\n" << std::endl;
-        return tagCounts.size();
-    }
+        void assertionStarting(AssertionInfo const&) override {}
 
-    inline std::size_t listReporters( Config const& /*config*/ ) {
-        Catch::cout() << "Available reporters:\n";
-        IReporterRegistry::FactoryMap const& factories = getRegistryHub().getReporterRegistry().getFactories();
-        IReporterRegistry::FactoryMap::const_iterator itBegin = factories.begin(), itEnd = factories.end(), it;
-        std::size_t maxNameLen = 0;
-        for(it = itBegin; it != itEnd; ++it )
-            maxNameLen = (std::max)( maxNameLen, it->first.size() );
-
-        for(it = itBegin; it != itEnd; ++it ) {
-            Text wrapper( it->second->getDescription(), TextAttributes()
-                                                        .setInitialIndent( 0 )
-                                                        .setIndent( 7+maxNameLen )
-                                                        .setWidth( CATCH_CONFIG_CONSOLE_WIDTH - maxNameLen-8 ) );
-            Catch::cout() << "  "
-                    << it->first
-                    << ":"
-                    << std::string( maxNameLen - it->first.size() + 2, ' ' )
-                    << wrapper << "\n";
+        bool assertionEnded(AssertionStats const& assertionStats) override {
+            assert(!m_sectionStack.empty());
+            // AssertionResult holds a pointer to a temporary DecomposedExpression,
+            // which getExpandedExpression() calls to build the expression string.
+            // Our section stack copy of the assertionResult will likely outlive the
+            // temporary, so it must be expanded or discarded now to avoid calling
+            // a destroyed object later.
+            prepareExpandedExpression(const_cast<AssertionResult&>( assertionStats.assertionResult ) );
+            SectionNode& sectionNode = *m_sectionStack.back();
+            sectionNode.assertions.push_back(assertionStats);
+            return true;
         }
-        Catch::cout() << std::endl;
-        return factories.size();
-    }
+        void sectionEnded(SectionStats const& sectionStats) override {
+            assert(!m_sectionStack.empty());
+            SectionNode& node = *m_sectionStack.back();
+            node.stats = sectionStats;
+            m_sectionStack.pop_back();
+        }
+        void testCaseEnded(TestCaseStats const& testCaseStats) override {
+            auto node = std::make_shared<TestCaseNode>(testCaseStats);
+            assert(m_sectionStack.size() == 0);
+            node->children.push_back(m_rootSection);
+            m_testCases.push_back(node);
+            m_rootSection.reset();
 
-    inline Option<std::size_t> list( Config const& config ) {
-        Option<std::size_t> listedCount;
-        if( config.listTests() )
-            listedCount = listedCount.valueOr(0) + listTests( config );
-        if( config.listTestNamesOnly() )
-            listedCount = listedCount.valueOr(0) + listTestsNamesOnly( config );
-        if( config.listTags() )
-            listedCount = listedCount.valueOr(0) + listTags( config );
-        if( config.listReporters() )
-            listedCount = listedCount.valueOr(0) + listReporters( config );
-        return listedCount;
+            assert(m_deepestSection);
+            m_deepestSection->stdOut = testCaseStats.stdOut;
+            m_deepestSection->stdErr = testCaseStats.stdErr;
+        }
+        void testGroupEnded(TestGroupStats const& testGroupStats) override {
+            auto node = std::make_shared<TestGroupNode>(testGroupStats);
+            node->children.swap(m_testCases);
+            m_testGroups.push_back(node);
+        }
+        void testRunEnded(TestRunStats const& testRunStats) override {
+            auto node = std::make_shared<TestRunNode>(testRunStats);
+            node->children.swap(m_testGroups);
+            m_testRuns.push_back(node);
+            testRunEndedCumulative();
+        }
+        virtual void testRunEndedCumulative() = 0;
+
+        void skipTest(TestCaseInfo const&) override {}
+
+        IConfigPtr m_config;
+        std::ostream& stream;
+        std::vector<AssertionStats> m_assertions;
+        std::vector<std::vector<std::shared_ptr<SectionNode>>> m_sections;
+        std::vector<std::shared_ptr<TestCaseNode>> m_testCases;
+        std::vector<std::shared_ptr<TestGroupNode>> m_testGroups;
+
+        std::vector<std::shared_ptr<TestRunNode>> m_testRuns;
+
+        std::shared_ptr<SectionNode> m_rootSection;
+        std::shared_ptr<SectionNode> m_deepestSection;
+        std::vector<std::shared_ptr<SectionNode>> m_sectionStack;
+        ReporterPreferences m_reporterPrefs;
+    };
+
+    template<char C>
+    char const* getLineOfChars() {
+        static char line[CATCH_CONFIG_CONSOLE_WIDTH] = {0};
+        if( !*line ) {
+            std::memset( line, C, CATCH_CONFIG_CONSOLE_WIDTH-1 );
+            line[CATCH_CONFIG_CONSOLE_WIDTH-1] = 0;
+        }
+        return line;
     }
 
+    struct TestEventListenerBase : StreamingReporterBase<TestEventListenerBase> {
+        TestEventListenerBase( ReporterConfig const& _config );
+
+        void assertionStarting(AssertionInfo const&) override;
+        bool assertionEnded(AssertionStats const&) override;
+    };
+
 } // end namespace Catch
 
-// #included from: internal/catch_run_context.hpp
-#define TWOBLUECUBES_CATCH_RUNNER_IMPL_HPP_INCLUDED
+// end catch_reporter_bases.hpp
+// start catch_console_colour.h
 
-// #included from: catch_test_case_tracker.hpp
-#define TWOBLUECUBES_CATCH_TEST_CASE_TRACKER_HPP_INCLUDED
+namespace Catch {
+
+    struct Colour {
+        enum Code {
+            None = 0,
+
+            White,
+            Red,
+            Green,
+            Blue,
+            Cyan,
+            Yellow,
+            Grey,
+
+            Bright = 0x10,
+
+            BrightRed = Bright | Red,
+            BrightGreen = Bright | Green,
+            LightGrey = Bright | Grey,
+            BrightWhite = Bright | White,
+
+            // By intention
+            FileName = LightGrey,
+            Warning = Yellow,
+            ResultError = BrightRed,
+            ResultSuccess = BrightGreen,
+            ResultExpectedFailure = Warning,
+
+            Error = BrightRed,
+            Success = Green,
+
+            OriginalExpression = Cyan,
+            ReconstructedExpression = Yellow,
+
+            SecondaryText = LightGrey,
+            Headers = White
+        };
+
+        // Use constructed object for RAII guard
+        Colour( Code _colourCode );
+        Colour( Colour&& other ) noexcept;
+        Colour& operator=( Colour&& other ) noexcept;
+        ~Colour();
+
+        // Use static method for one-shot changes
+        static void use( Code _colourCode );
+
+    private:
+        bool m_moved = false;
+    };
+
+    std::ostream& operator << ( std::ostream& os, Colour const& );
+
+} // end namespace Catch
+
+// end catch_console_colour.h
+// start catch_reporter_registrars.hpp
+
+
+namespace Catch {
+
+    template<typename T>
+    class ReporterRegistrar {
+
+        class ReporterFactory : public IReporterFactory {
+
+            virtual IStreamingReporterPtr create( ReporterConfig const& config ) const override {
+                return std::unique_ptr<T>( new T( config ) );
+            }
+
+            virtual std::string getDescription() const override {
+                return T::getDescription();
+            }
+        };
+
+    public:
+
+        ReporterRegistrar( std::string const& name ) {
+            getMutableRegistryHub().registerReporter( name, std::make_shared<ReporterFactory>() );
+        }
+    };
+
+    template<typename T>
+    class ListenerRegistrar {
+
+        class ListenerFactory : public IReporterFactory {
+
+            virtual IStreamingReporterPtr create( ReporterConfig const& config ) const override {
+                return std::unique_ptr<T>( new T( config ) );
+            }
+            virtual std::string getDescription() const override {
+                return std::string();
+            }
+        };
+
+    public:
+
+        ListenerRegistrar() {
+            getMutableRegistryHub().registerListener( std::make_shared<ListenerFactory>() );
+        }
+    };
+}
+
+#if !defined(CATCH_CONFIG_DISABLE)
+
+#define CATCH_REGISTER_REPORTER( name, reporterType ) \
+    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS          \
+    namespace{ Catch::ReporterRegistrar<reporterType> catch_internal_RegistrarFor##reporterType( name ); } \
+    CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS
+
+#define CATCH_REGISTER_LISTENER( listenerType ) \
+     CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS   \
+     namespace{ Catch::ListenerRegistrar<listenerType> catch_internal_RegistrarFor##listenerType; } \
+     CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS
+#else // CATCH_CONFIG_DISABLE
+
+#define CATCH_REGISTER_REPORTER(name, reporterType)
+#define CATCH_REGISTER_LISTENER(listenerType)
+
+#endif // CATCH_CONFIG_DISABLE
+
+// end catch_reporter_registrars.hpp
+// end catch_external_interfaces.h
+#endif
+
+#ifdef CATCH_IMPL
+// start catch_impl.hpp
+
+#ifdef __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wweak-vtables"
+#endif
+
+// Keep these here for external reporters
+// start catch_test_case_tracker.h
 
-#include <map>
 #include <string>
-#include <assert.h>
 #include <vector>
+#include <memory>
 
 namespace Catch {
 namespace TestCaseTracking {
 
-    struct ITracker : SharedImpl<> {
+    struct NameAndLocation {
+        std::string name;
+        SourceLineInfo location;
+
+        NameAndLocation( std::string const& _name, SourceLineInfo const& _location );
+    };
+
+    struct ITracker;
+
+    using ITrackerPtr = std::shared_ptr<ITracker>;
+
+    struct ITracker {
         virtual ~ITracker();
 
         // static queries
-        virtual std::string name() const = 0;
+        virtual NameAndLocation const& nameAndLocation() const = 0;
 
         // dynamic queries
         virtual bool isComplete() const = 0; // Successfully completed or failed
@@ -5498,8 +3834,8 @@ namespace TestCaseTracking {
         virtual void fail() = 0;
         virtual void markAsNeedingAnotherRun() = 0;
 
-        virtual void addChild( Ptr<ITracker> const& child ) = 0;
-        virtual ITracker* findChild( std::string const& name ) = 0;
+        virtual void addChild( ITrackerPtr const& child ) = 0;
+        virtual ITrackerPtr findChild( NameAndLocation const& nameAndLocation ) = 0;
         virtual void openChild() = 0;
 
         // Debug/ checking
@@ -5515,47 +3851,23 @@ namespace TestCaseTracking {
             CompletedCycle
         };
 
-        Ptr<ITracker> m_rootTracker;
-        ITracker* m_currentTracker;
-        RunState m_runState;
+        ITrackerPtr m_rootTracker;
+        ITracker* m_currentTracker = nullptr;
+        RunState m_runState = NotStarted;
 
     public:
 
-        static TrackerContext& instance() {
-            static TrackerContext s_instance;
-            return s_instance;
-        }
-
-        TrackerContext()
-        :   m_currentTracker( CATCH_NULL ),
-            m_runState( NotStarted )
-        {}
+        static TrackerContext& instance();
 
         ITracker& startRun();
+        void endRun();
 
-        void endRun() {
-            m_rootTracker.reset();
-            m_currentTracker = CATCH_NULL;
-            m_runState = NotStarted;
-        }
-
-        void startCycle() {
-            m_currentTracker = m_rootTracker.get();
-            m_runState = Executing;
-        }
-        void completeCycle() {
-            m_runState = CompletedCycle;
-        }
+        void startCycle();
+        void completeCycle();
 
-        bool completedCycle() const {
-            return m_runState == CompletedCycle;
-        }
-        ITracker& currentTracker() {
-            return *m_currentTracker;
-        }
-        void setCurrentTracker( ITracker* tracker ) {
-            m_currentTracker = tracker;
-        }
+        bool completedCycle() const;
+        ITracker& currentTracker();
+        void setCurrentTracker( ITracker* tracker );
     };
 
     class TrackerBase : public ITracker {
@@ -5568,214 +3880,82 @@ namespace TestCaseTracking {
             CompletedSuccessfully,
             Failed
         };
+
         class TrackerHasName {
-            std::string m_name;
+            NameAndLocation m_nameAndLocation;
         public:
-            TrackerHasName( std::string const& name ) : m_name( name ) {}
-            bool operator ()( Ptr<ITracker> const& tracker ) {
-                return tracker->name() == m_name;
-            }
+            TrackerHasName( NameAndLocation const& nameAndLocation );
+            bool operator ()( ITrackerPtr const& tracker ) const;
         };
-        typedef std::vector<Ptr<ITracker> > Children;
-        std::string m_name;
+
+        using Children = std::vector<ITrackerPtr>;
+        NameAndLocation m_nameAndLocation;
         TrackerContext& m_ctx;
         ITracker* m_parent;
         Children m_children;
-        CycleState m_runState;
-    public:
-        TrackerBase( std::string const& name, TrackerContext& ctx, ITracker* parent )
-        :   m_name( name ),
-            m_ctx( ctx ),
-            m_parent( parent ),
-            m_runState( NotStarted )
-        {}
-        virtual ~TrackerBase();
-
-        virtual std::string name() const CATCH_OVERRIDE {
-            return m_name;
-        }
-        virtual bool isComplete() const CATCH_OVERRIDE {
-            return m_runState == CompletedSuccessfully || m_runState == Failed;
-        }
-        virtual bool isSuccessfullyCompleted() const CATCH_OVERRIDE {
-            return m_runState == CompletedSuccessfully;
-        }
-        virtual bool isOpen() const CATCH_OVERRIDE {
-            return m_runState != NotStarted && !isComplete();
-        }
-        virtual bool hasChildren() const CATCH_OVERRIDE {
-            return !m_children.empty();
-        }
+        CycleState m_runState = NotStarted;
 
-        virtual void addChild( Ptr<ITracker> const& child ) CATCH_OVERRIDE {
-            m_children.push_back( child );
-        }
-
-        virtual ITracker* findChild( std::string const& name ) CATCH_OVERRIDE {
-            Children::const_iterator it = std::find_if( m_children.begin(), m_children.end(), TrackerHasName( name ) );
-            return( it != m_children.end() )
-                ? it->get()
-                : CATCH_NULL;
-        }
-        virtual ITracker& parent() CATCH_OVERRIDE {
-            assert( m_parent ); // Should always be non-null except for root
-            return *m_parent;
-        }
-
-        virtual void openChild() CATCH_OVERRIDE {
-            if( m_runState != ExecutingChildren ) {
-                m_runState = ExecutingChildren;
-                if( m_parent )
-                    m_parent->openChild();
-            }
-        }
+    public:
+        TrackerBase( NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent );
 
-        virtual bool isSectionTracker() const CATCH_OVERRIDE { return false; }
-        virtual bool isIndexTracker() const CATCH_OVERRIDE { return false; }
+        NameAndLocation const& nameAndLocation() const override;
+        bool isComplete() const override;
+        bool isSuccessfullyCompleted() const override;
+        bool isOpen() const override;
+        bool hasChildren() const override;
 
-        void open() {
-            m_runState = Executing;
-            moveToThis();
-            if( m_parent )
-                m_parent->openChild();
-        }
+        void addChild( ITrackerPtr const& child ) override;
 
-        virtual void close() CATCH_OVERRIDE {
+        ITrackerPtr findChild( NameAndLocation const& nameAndLocation ) override;
+        ITracker& parent() override;
 
-            // Close any still open children (e.g. generators)
-            while( &m_ctx.currentTracker() != this )
-                m_ctx.currentTracker().close();
+        void openChild() override;
 
-            switch( m_runState ) {
-                case NotStarted:
-                case CompletedSuccessfully:
-                case Failed:
-                    throw std::logic_error( "Illogical state" );
+        bool isSectionTracker() const override;
+        bool isIndexTracker() const override;
 
-                case NeedsAnotherRun:
-                    break;;
+        void open();
 
-                case Executing:
-                    m_runState = CompletedSuccessfully;
-                    break;
-                case ExecutingChildren:
-                    if( m_children.empty() || m_children.back()->isComplete() )
-                        m_runState = CompletedSuccessfully;
-                    break;
+        void close() override;
+        void fail() override;
+        void markAsNeedingAnotherRun() override;
 
-                default:
-                    throw std::logic_error( "Unexpected state" );
-            }
-            moveToParent();
-            m_ctx.completeCycle();
-        }
-        virtual void fail() CATCH_OVERRIDE {
-            m_runState = Failed;
-            if( m_parent )
-                m_parent->markAsNeedingAnotherRun();
-            moveToParent();
-            m_ctx.completeCycle();
-        }
-        virtual void markAsNeedingAnotherRun() CATCH_OVERRIDE {
-            m_runState = NeedsAnotherRun;
-        }
     private:
-        void moveToParent() {
-            assert( m_parent );
-            m_ctx.setCurrentTracker( m_parent );
-        }
-        void moveToThis() {
-            m_ctx.setCurrentTracker( this );
-        }
+        void moveToParent();
+        void moveToThis();
     };
 
     class SectionTracker : public TrackerBase {
+        std::vector<std::string> m_filters;
     public:
-        SectionTracker( std::string const& name, TrackerContext& ctx, ITracker* parent )
-        :   TrackerBase( name, ctx, parent )
-        {}
-        virtual ~SectionTracker();
+        SectionTracker( NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent );
 
-        virtual bool isSectionTracker() const CATCH_OVERRIDE { return true; }
+        bool isSectionTracker() const override;
 
-        static SectionTracker& acquire( TrackerContext& ctx, std::string const& name ) {
-            SectionTracker* section = CATCH_NULL;
+        static SectionTracker& acquire( TrackerContext& ctx, NameAndLocation const& nameAndLocation );
 
-            ITracker& currentTracker = ctx.currentTracker();
-            if( ITracker* childTracker = currentTracker.findChild( name ) ) {
-                assert( childTracker );
-                assert( childTracker->isSectionTracker() );
-                section = static_cast<SectionTracker*>( childTracker );
-            }
-            else {
-                section = new SectionTracker( name, ctx, &currentTracker );
-                currentTracker.addChild( section );
-            }
-            if( !ctx.completedCycle() && !section->isComplete() ) {
+        void tryOpen();
 
-                section->open();
-            }
-            return *section;
-        }
+        void addInitialFilters( std::vector<std::string> const& filters );
+        void addNextFilters( std::vector<std::string> const& filters );
     };
 
     class IndexTracker : public TrackerBase {
         int m_size;
-        int m_index;
+        int m_index = -1;
     public:
-        IndexTracker( std::string const& name, TrackerContext& ctx, ITracker* parent, int size )
-        :   TrackerBase( name, ctx, parent ),
-            m_size( size ),
-            m_index( -1 )
-        {}
-        virtual ~IndexTracker();
-
-        virtual bool isIndexTracker() const CATCH_OVERRIDE { return true; }
+        IndexTracker( NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent, int size );
 
-        static IndexTracker& acquire( TrackerContext& ctx, std::string const& name, int size ) {
-            IndexTracker* tracker = CATCH_NULL;
+        bool isIndexTracker() const override;
+        void close() override;
 
-            ITracker& currentTracker = ctx.currentTracker();
-            if( ITracker* childTracker = currentTracker.findChild( name ) ) {
-                assert( childTracker );
-                assert( childTracker->isIndexTracker() );
-                tracker = static_cast<IndexTracker*>( childTracker );
-            }
-            else {
-                tracker = new IndexTracker( name, ctx, &currentTracker, size );
-                currentTracker.addChild( tracker );
-            }
-
-            if( !ctx.completedCycle() && !tracker->isComplete() ) {
-                if( tracker->m_runState != ExecutingChildren && tracker->m_runState != NeedsAnotherRun )
-                    tracker->moveNext();
-                tracker->open();
-            }
-
-            return *tracker;
-        }
+        static IndexTracker& acquire( TrackerContext& ctx, NameAndLocation const& nameAndLocation, int size );
 
-        int index() const { return m_index; }
+        int index() const;
 
-        void moveNext() {
-            m_index++;
-            m_children.clear();
-        }
-
-        virtual void close() CATCH_OVERRIDE {
-            TrackerBase::close();
-            if( m_runState == CompletedSuccessfully && m_index < m_size-1 )
-                m_runState = Executing;
-        }
+        void moveNext();
     };
 
-    inline ITracker& TrackerContext::startRun() {
-        m_rootTracker = new SectionTracker( "{root}", *this, CATCH_NULL );
-        m_currentTracker = CATCH_NULL;
-        m_runState = Executing;
-        return *m_rootTracker;
-    }
-
 } // namespace TestCaseTracking
 
 using TestCaseTracking::ITracker;
@@ -5785,1216 +3965,1965 @@ using TestCaseTracking::IndexTracker;
 
 } // namespace Catch
 
-// #included from: catch_fatal_condition.hpp
-#define TWOBLUECUBES_CATCH_FATAL_CONDITION_H_INCLUDED
+// end catch_test_case_tracker.h
+
+// start catch_leak_detector.h
 
 namespace Catch {
 
-    // Report the error condition then exit the process
-    inline void fatal( std::string const& message, int exitCode ) {
-        IContext& context = Catch::getCurrentContext();
-        IResultCapture* resultCapture = context.getResultCapture();
-        resultCapture->handleFatalErrorCondition( message );
+    struct LeakDetector {
+        LeakDetector();
+    };
 
-		if( Catch::alwaysTrue() ) // avoids "no return" warnings
-            exit( exitCode );
-    }
+}
+// end catch_leak_detector.h
+// Cpp files will be included in the single-header file here
+// start catch_approx.cpp
 
-} // namespace Catch
+#include <cmath>
+#include <limits>
 
-#if defined ( CATCH_PLATFORM_WINDOWS ) /////////////////////////////////////////
+namespace {
+
+// Performs equivalent check of std::fabs(lhs - rhs) <= margin
+// But without the subtraction to allow for INFINITY in comparison
+bool marginComparison(double lhs, double rhs, double margin) {
+    return (lhs + margin >= rhs) && (rhs + margin >= lhs);
+}
+
+}
 
 namespace Catch {
+namespace Detail {
 
-    struct FatalConditionHandler {
-		void reset() {}
-	};
+    Approx::Approx ( double value )
+    :   m_epsilon( std::numeric_limits<float>::epsilon()*100 ),
+        m_margin( 0.0 ),
+        m_scale( 0.0 ),
+        m_value( value )
+    {}
 
-} // namespace Catch
+    Approx Approx::custom() {
+        return Approx( 0 );
+    }
 
-#else // Not Windows - assumed to be POSIX compatible //////////////////////////
+    std::string Approx::toString() const {
+        std::ostringstream oss;
+        oss << "Approx( " << ::Catch::Detail::stringify( m_value ) << " )";
+        return oss.str();
+    }
 
-#include <signal.h>
+    bool Approx::equalityComparisonImpl(const double other) const {
+        // First try with fixed margin, then compute margin based on epsilon, scale and Approx's value
+        // Thanks to Richard Harris for his help refining the scaled margin value
+        return marginComparison(m_value, other, m_margin) || marginComparison(m_value, other, m_epsilon * (m_scale + std::fabs(m_value)));
+    }
 
-namespace Catch {
+} // end namespace Detail
 
-    struct SignalDefs { int id; const char* name; };
-    extern SignalDefs signalDefs[];
-    SignalDefs signalDefs[] = {
-            { SIGINT,  "SIGINT - Terminal interrupt signal" },
-            { SIGILL,  "SIGILL - Illegal instruction signal" },
-            { SIGFPE,  "SIGFPE - Floating point error signal" },
-            { SIGSEGV, "SIGSEGV - Segmentation violation signal" },
-            { SIGTERM, "SIGTERM - Termination request signal" },
-            { SIGABRT, "SIGABRT - Abort (abnormal termination) signal" }
-        };
+std::string StringMaker<Catch::Detail::Approx>::convert(Catch::Detail::Approx const& value) {
+    return value.toString();
+}
 
-    struct FatalConditionHandler {
+} // end namespace Catch
+// end catch_approx.cpp
+// start catch_assertionhandler.cpp
 
-        static void handleSignal( int sig ) {
-            for( std::size_t i = 0; i < sizeof(signalDefs)/sizeof(SignalDefs); ++i )
-                if( sig == signalDefs[i].id )
-                    fatal( signalDefs[i].name, -sig );
-            fatal( "<unknown signal>", -sig );
-        }
+// start catch_context.h
 
-        FatalConditionHandler() : m_isSet( true ) {
-            for( std::size_t i = 0; i < sizeof(signalDefs)/sizeof(SignalDefs); ++i )
-                signal( signalDefs[i].id, handleSignal );
-        }
-        ~FatalConditionHandler() {
-            reset();
-        }
-        void reset() {
-            if( m_isSet ) {
-                for( std::size_t i = 0; i < sizeof(signalDefs)/sizeof(SignalDefs); ++i )
-                    signal( signalDefs[i].id, SIG_DFL );
-                m_isSet = false;
-            }
-        }
+#include <memory>
+
+namespace Catch {
+
+    struct IResultCapture;
+    struct IRunner;
+    struct IConfig;
+
+    using IConfigPtr = std::shared_ptr<IConfig const>;
+
+    struct IContext
+    {
+        virtual ~IContext();
 
-        bool m_isSet;
+        virtual IResultCapture* getResultCapture() = 0;
+        virtual IRunner* getRunner() = 0;
+        virtual IConfigPtr getConfig() const = 0;
     };
 
-} // namespace Catch
+    struct IMutableContext : IContext
+    {
+        virtual ~IMutableContext();
+        virtual void setResultCapture( IResultCapture* resultCapture ) = 0;
+        virtual void setRunner( IRunner* runner ) = 0;
+        virtual void setConfig( IConfigPtr const& config ) = 0;
+    };
 
-#endif // not Windows
+    IContext& getCurrentContext();
+    IMutableContext& getCurrentMutableContext();
+    void cleanUpContext();
+}
 
-#include <set>
-#include <string>
+// end catch_context.h
+#include <cassert>
 
 namespace Catch {
 
-    class StreamRedirect {
+    auto operator <<( std::ostream& os, ITransientExpression const& expr ) -> std::ostream& {
+        expr.streamReconstructedExpression( os );
+        return os;
+    }
 
-    public:
-        StreamRedirect( std::ostream& stream, std::string& targetString )
-        :   m_stream( stream ),
-            m_prevBuf( stream.rdbuf() ),
-            m_targetString( targetString )
-        {
-            stream.rdbuf( m_oss.rdbuf() );
+    LazyExpression::LazyExpression( bool isNegated )
+    :   m_isNegated( isNegated )
+    {}
+
+    LazyExpression::LazyExpression( LazyExpression const& other ) : m_isNegated( other.m_isNegated ) {}
+
+    LazyExpression::operator bool() const {
+        return m_transientExpression != nullptr;
+    }
+
+    auto operator << ( std::ostream& os, LazyExpression const& lazyExpr ) -> std::ostream& {
+        if( lazyExpr.m_isNegated )
+            os << "!";
+
+        if( lazyExpr ) {
+            if( lazyExpr.m_isNegated && lazyExpr.m_transientExpression->isBinaryExpression() )
+                os << "(" << *lazyExpr.m_transientExpression << ")";
+            else
+                os << *lazyExpr.m_transientExpression;
+        }
+        else {
+            os << "{** error - unchecked empty expression requested **}";
         }
+        return os;
+    }
 
-        ~StreamRedirect() {
-            m_targetString += m_oss.str();
-            m_stream.rdbuf( m_prevBuf );
+    AssertionHandler::AssertionHandler
+        (   StringRef macroName,
+            SourceLineInfo const& lineInfo,
+            StringRef capturedExpression,
+            ResultDisposition::Flags resultDisposition )
+    :   m_assertionInfo{ macroName, lineInfo, capturedExpression, resultDisposition }
+    {
+        getCurrentContext().getResultCapture()->assertionStarting( m_assertionInfo );
+    }
+    AssertionHandler::~AssertionHandler() {
+        if ( m_inExceptionGuard ) {
+            handle( ResultWas::ThrewException, "Exception translation was disabled by CATCH_CONFIG_FAST_COMPILE" );
+            getCurrentContext().getResultCapture()->exceptionEarlyReported();
         }
+    }
 
-    private:
-        std::ostream& m_stream;
-        std::streambuf* m_prevBuf;
-        std::ostringstream m_oss;
-        std::string& m_targetString;
-    };
+    void AssertionHandler::handle( ITransientExpression const& expr ) {
 
-    ///////////////////////////////////////////////////////////////////////////
+        bool negated = isFalseTest( m_assertionInfo.resultDisposition );
+        bool result = expr.getResult() != negated;
 
-    class RunContext : public IResultCapture, public IRunner {
+        handle( result ? ResultWas::Ok : ResultWas::ExpressionFailed, &expr, negated );
+    }
+    void AssertionHandler::handle( ResultWas::OfType resultType ) {
+        handle( resultType, nullptr, false );
+    }
+    void AssertionHandler::handle( ResultWas::OfType resultType, StringRef const& message ) {
+        AssertionResultData data( resultType, LazyExpression( false ) );
+        data.message = message;
+        handle( data, nullptr );
+    }
+    void AssertionHandler::handle( ResultWas::OfType resultType, ITransientExpression const* expr, bool negated ) {
+        AssertionResultData data( resultType, LazyExpression( negated ) );
+        handle( data, expr );
+    }
+    void AssertionHandler::handle( AssertionResultData const& resultData, ITransientExpression const* expr ) {
 
-        RunContext( RunContext const& );
-        void operator =( RunContext const& );
+        getResultCapture().assertionRun();
 
-    public:
+        AssertionResult assertionResult{ m_assertionInfo, resultData };
+        assertionResult.m_resultData.lazyExpression.m_transientExpression = expr;
 
-        explicit RunContext( Ptr<IConfig const> const& _config, Ptr<IStreamingReporter> const& reporter )
-        :   m_runInfo( _config->name() ),
-            m_context( getCurrentMutableContext() ),
-            m_activeTestCase( CATCH_NULL ),
-            m_config( _config ),
-            m_reporter( reporter )
-        {
-            m_context.setRunner( this );
-            m_context.setConfig( m_config );
-            m_context.setResultCapture( this );
-            m_reporter->testRunStarting( m_runInfo );
-        }
+        getResultCapture().assertionEnded( assertionResult );
 
-        virtual ~RunContext() {
-            m_reporter->testRunEnded( TestRunStats( m_runInfo, m_totals, aborting() ) );
+        if( !assertionResult.isOk() ) {
+            m_shouldDebugBreak = getCurrentContext().getConfig()->shouldDebugBreak();
+            m_shouldThrow =
+                    getCurrentContext().getRunner()->aborting() ||
+                    (m_assertionInfo.resultDisposition & ResultDisposition::Normal);
         }
+    }
 
-        void testGroupStarting( std::string const& testSpec, std::size_t groupIndex, std::size_t groupsCount ) {
-            m_reporter->testGroupStarting( GroupInfo( testSpec, groupIndex, groupsCount ) );
-        }
-        void testGroupEnded( std::string const& testSpec, Totals const& totals, std::size_t groupIndex, std::size_t groupsCount ) {
-            m_reporter->testGroupEnded( TestGroupStats( GroupInfo( testSpec, groupIndex, groupsCount ), totals, aborting() ) );
+    auto AssertionHandler::allowThrows() const -> bool {
+        return getCurrentContext().getConfig()->allowThrows();
+    }
+
+    auto AssertionHandler::shouldDebugBreak() const -> bool {
+        return m_shouldDebugBreak;
+    }
+    void AssertionHandler::reactWithDebugBreak() const {
+        if (m_shouldDebugBreak) {
+            ///////////////////////////////////////////////////////////////////
+            // To inspect the state during test, you need to go one level up the callstack
+            // To go back to the test and change execution, jump over the reactWithoutDebugBreak() call
+            ///////////////////////////////////////////////////////////////////
+            CATCH_BREAK_INTO_DEBUGGER();
         }
+        reactWithoutDebugBreak();
+    }
+    void AssertionHandler::reactWithoutDebugBreak() const {
+        if( m_shouldThrow )
+            throw Catch::TestFailureException();
+    }
 
-        Totals runTest( TestCase const& testCase ) {
-            Totals prevTotals = m_totals;
+    void AssertionHandler::useActiveException() {
+        handle( ResultWas::ThrewException, Catch::translateActiveException() );
+    }
 
-            std::string redirectedCout;
-            std::string redirectedCerr;
+    void AssertionHandler::setExceptionGuard() {
+        assert( m_inExceptionGuard == false );
+        m_inExceptionGuard = true;
+    }
+    void AssertionHandler::unsetExceptionGuard() {
+        assert( m_inExceptionGuard == true );
+        m_inExceptionGuard = false;
+    }
 
-            TestCaseInfo testInfo = testCase.getTestCaseInfo();
+    // This is the overload that takes a string and infers the Equals matcher from it
+    // The more general overload, that takes any string matcher, is in catch_capture_matchers.cpp
+    void handleExceptionMatchExpr( AssertionHandler& handler, std::string const& str, StringRef matcherString  ) {
+        handleExceptionMatchExpr( handler, Matchers::Equals( str ), matcherString );
+    }
 
-            m_reporter->testCaseStarting( testInfo );
+} // namespace Catch
+// end catch_assertionhandler.cpp
+// start catch_assertionresult.cpp
 
-            m_activeTestCase = &testCase;
+namespace Catch {
+    AssertionResultData::AssertionResultData(ResultWas::OfType _resultType, LazyExpression const & _lazyExpression):
+        lazyExpression(_lazyExpression),
+        resultType(_resultType) {}
 
-            do {
-                m_trackerContext.startRun();
-                do {
-                    m_trackerContext.startCycle();
-                    m_testCaseTracker = &SectionTracker::acquire( m_trackerContext, testInfo.name );
-                    runCurrentTest( redirectedCout, redirectedCerr );
-                }
-                while( !m_testCaseTracker->isSuccessfullyCompleted() && !aborting() );
-            }
-            // !TBD: deprecated - this will be replaced by indexed trackers
-            while( getCurrentContext().advanceGeneratorsForCurrentTest() && !aborting() );
+    std::string AssertionResultData::reconstructExpression() const {
 
-            Totals deltaTotals = m_totals.delta( prevTotals );
-            if( testInfo.expectedToFail() && deltaTotals.testCases.passed > 0 ) {
-                deltaTotals.assertions.failed++;
-                deltaTotals.testCases.passed--;
-                deltaTotals.testCases.failed++;
+        if( reconstructedExpression.empty() ) {
+            if( lazyExpression ) {
+                // !TBD Use stringstream for now, but rework above to pass stream in
+                std::ostringstream oss;
+                oss << lazyExpression;
+                reconstructedExpression = oss.str();
             }
-            m_totals.testCases += deltaTotals.testCases;
-            m_reporter->testCaseEnded( TestCaseStats(   testInfo,
-                                                        deltaTotals,
-                                                        redirectedCout,
-                                                        redirectedCerr,
-                                                        aborting() ) );
+        }
+        return reconstructedExpression;
+    }
 
-            m_activeTestCase = CATCH_NULL;
-            m_testCaseTracker = CATCH_NULL;
+    AssertionResult::AssertionResult( AssertionInfo const& info, AssertionResultData const& data )
+    :   m_info( info ),
+        m_resultData( data )
+    {}
 
-            return deltaTotals;
-        }
+    // Result was a success
+    bool AssertionResult::succeeded() const {
+        return Catch::isOk( m_resultData.resultType );
+    }
 
-        Ptr<IConfig const> config() const {
-            return m_config;
-        }
+    // Result was a success, or failure is suppressed
+    bool AssertionResult::isOk() const {
+        return Catch::isOk( m_resultData.resultType ) || shouldSuppressFailure( m_info.resultDisposition );
+    }
 
-    private: // IResultCapture
+    ResultWas::OfType AssertionResult::getResultType() const {
+        return m_resultData.resultType;
+    }
 
-        virtual void assertionEnded( AssertionResult const& result ) {
-            if( result.getResultType() == ResultWas::Ok ) {
-                m_totals.assertions.passed++;
-            }
-            else if( !result.isOk() ) {
-                m_totals.assertions.failed++;
-            }
+    bool AssertionResult::hasExpression() const {
+        return m_info.capturedExpression[0] != 0;
+    }
 
-            if( m_reporter->assertionEnded( AssertionStats( result, m_messages, m_totals ) ) )
-                m_messages.clear();
+    bool AssertionResult::hasMessage() const {
+        return !m_resultData.message.empty();
+    }
+
+    std::string AssertionResult::getExpression() const {
+        if( isFalseTest( m_info.resultDisposition ) )
+            return "!(" + std::string(m_info.capturedExpression) + ")";
+        else
+            return m_info.capturedExpression;
+    }
 
-            // Reset working state
-            m_lastAssertionInfo = AssertionInfo( "", m_lastAssertionInfo.lineInfo, "{Unknown expression after the reported line}" , m_lastAssertionInfo.resultDisposition );
-            m_lastResult = result;
+    std::string AssertionResult::getExpressionInMacro() const {
+        std::string expr;
+        if( m_info.macroName[0] == 0 )
+            expr = m_info.capturedExpression;
+        else {
+            expr.reserve( m_info.macroName.size() + m_info.capturedExpression.size() + 4 );
+            expr += m_info.macroName;
+            expr += "( ";
+            expr += m_info.capturedExpression;
+            expr += " )";
         }
+        return expr;
+    }
 
-        virtual bool sectionStarted (
-            SectionInfo const& sectionInfo,
-            Counts& assertions
-        )
-        {
-            std::ostringstream oss;
-            oss << sectionInfo.name << "@" << sectionInfo.lineInfo;
+    bool AssertionResult::hasExpandedExpression() const {
+        return hasExpression() && getExpandedExpression() != getExpression();
+    }
 
-            ITracker& sectionTracker = SectionTracker::acquire( m_trackerContext, oss.str() );
-            if( !sectionTracker.isOpen() )
-                return false;
-            m_activeSections.push_back( &sectionTracker );
+    std::string AssertionResult::getExpandedExpression() const {
+        std::string expr = m_resultData.reconstructExpression();
+        return expr.empty()
+                ? getExpression()
+                : expr;
+    }
 
-            m_lastAssertionInfo.lineInfo = sectionInfo.lineInfo;
+    std::string AssertionResult::getMessage() const {
+        return m_resultData.message;
+    }
+    SourceLineInfo AssertionResult::getSourceInfo() const {
+        return m_info.lineInfo;
+    }
 
-            m_reporter->sectionStarting( sectionInfo );
+    std::string AssertionResult::getTestMacroName() const {
+        return m_info.macroName;
+    }
 
-            assertions = m_totals.assertions;
+} // end namespace Catch
+// end catch_assertionresult.cpp
+// start catch_benchmark.cpp
 
-            return true;
-        }
-        bool testForMissingAssertions( Counts& assertions ) {
-            if( assertions.total() != 0 )
-                return false;
-            if( !m_config->warnAboutMissingAssertions() )
-                return false;
-            if( m_trackerContext.currentTracker().hasChildren() )
-                return false;
-            m_totals.assertions.failed++;
-            assertions.failed++;
+namespace Catch {
+
+    auto BenchmarkLooper::getResolution() -> uint64_t {
+        return getEstimatedClockResolution() * getCurrentContext().getConfig()->benchmarkResolutionMultiple();
+    }
+
+    void BenchmarkLooper::reportStart() {
+        getResultCapture().benchmarkStarting( { m_name } );
+    }
+    auto BenchmarkLooper::needsMoreIterations() -> bool {
+        auto elapsed = m_timer.getElapsedNanoseconds();
+
+        // Exponentially increasing iterations until we're confident in our timer resolution
+        if( elapsed < m_resolution ) {
+            m_iterationsToRun *= 10;
             return true;
         }
 
-        virtual void sectionEnded( SectionEndInfo const& endInfo ) {
-            Counts assertions = m_totals.assertions - endInfo.prevAssertions;
-            bool missingAssertions = testForMissingAssertions( assertions );
+        getResultCapture().benchmarkEnded( { { m_name }, m_count, elapsed } );
+        return false;
+    }
 
-            if( !m_activeSections.empty() ) {
-                m_activeSections.back()->close();
-                m_activeSections.pop_back();
-            }
+} // end namespace Catch
+// end catch_benchmark.cpp
+// start catch_capture_matchers.cpp
 
-            m_reporter->sectionEnded( SectionStats( endInfo.sectionInfo, assertions, endInfo.durationInSeconds, missingAssertions ) );
-            m_messages.clear();
-        }
+namespace Catch {
 
-        virtual void sectionEndedEarly( SectionEndInfo const& endInfo ) {
-            if( m_unfinishedSections.empty() )
-                m_activeSections.back()->fail();
-            else
-                m_activeSections.back()->close();
-            m_activeSections.pop_back();
+    using StringMatcher = Matchers::Impl::MatcherBase<std::string>;
 
-            m_unfinishedSections.push_back( endInfo );
-        }
+    // This is the general overload that takes a any string matcher
+    // There is another overload, in catch_assertinhandler.h/.cpp, that only takes a string and infers
+    // the Equals matcher (so the header does not mention matchers)
+    void handleExceptionMatchExpr( AssertionHandler& handler, StringMatcher const& matcher, StringRef matcherString  ) {
+        std::string exceptionMessage = Catch::translateActiveException();
+        MatchExpr<std::string, StringMatcher const&> expr( exceptionMessage, matcher, matcherString );
+        handler.handle( expr );
+    }
 
-        virtual void pushScopedMessage( MessageInfo const& message ) {
-            m_messages.push_back( message );
-        }
+} // namespace Catch
+// end catch_capture_matchers.cpp
+// start catch_commandline.cpp
 
-        virtual void popScopedMessage( MessageInfo const& message ) {
-            m_messages.erase( std::remove( m_messages.begin(), m_messages.end(), message ), m_messages.end() );
-        }
+// start catch_commandline.h
 
-        virtual std::string getCurrentTestName() const {
-            return m_activeTestCase
-                ? m_activeTestCase->getTestCaseInfo().name
-                : "";
-        }
+// start catch_clara.h
 
-        virtual const AssertionResult* getLastResult() const {
-            return &m_lastResult;
-        }
+// Use Catch's value for console width (store Clara's off to the side, if present)
+#ifdef CLARA_CONFIG_CONSOLE_WIDTH
+#define CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
+#undef CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
+#endif
+#define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH CATCH_CONFIG_CONSOLE_WIDTH-1
 
-        virtual void handleFatalErrorCondition( std::string const& message ) {
-            ResultBuilder resultBuilder = makeUnexpectedResultBuilder();
-            resultBuilder.setResultType( ResultWas::FatalErrorCondition );
-            resultBuilder << message;
-            resultBuilder.captureExpression();
+#ifdef __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wweak-vtables"
+#pragma clang diagnostic ignored "-Wexit-time-destructors"
+#pragma clang diagnostic ignored "-Wshadow"
+#endif
 
-            handleUnfinishedSections();
+// start clara.hpp
+// v1.0-develop.2
+// See https://github.com/philsquared/Clara
 
-            // Recreate section for test case (as we will lose the one that was in scope)
-            TestCaseInfo const& testCaseInfo = m_activeTestCase->getTestCaseInfo();
-            SectionInfo testCaseSection( testCaseInfo.lineInfo, testCaseInfo.name, testCaseInfo.description );
 
-            Counts assertions;
-            assertions.failed = 1;
-            SectionStats testCaseSectionStats( testCaseSection, assertions, 0, false );
-            m_reporter->sectionEnded( testCaseSectionStats );
+#ifndef CATCH_CLARA_CONFIG_CONSOLE_WIDTH
+#define CATCH_CLARA_CONFIG_CONSOLE_WIDTH 80
+#endif
 
-            TestCaseInfo testInfo = m_activeTestCase->getTestCaseInfo();
+#ifndef CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
+#define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH CATCH_CLARA_CONFIG_CONSOLE_WIDTH
+#endif
+
+// ----------- #included from clara_textflow.hpp -----------
+
+// TextFlowCpp
+//
+// A single-header library for wrapping and laying out basic text, by Phil Nash
+//
+// This work is licensed under the BSD 2-Clause license.
+// See the accompanying LICENSE file, or the one at https://opensource.org/licenses/BSD-2-Clause
+//
+// This project is hosted at https://github.com/philsquared/textflowcpp
 
-            Totals deltaTotals;
-            deltaTotals.testCases.failed = 1;
-            m_reporter->testCaseEnded( TestCaseStats(   testInfo,
-                                                        deltaTotals,
-                                                        "",
-                                                        "",
-                                                        false ) );
-            m_totals.testCases.failed++;
-            testGroupEnded( "", m_totals, 1, 1 );
-            m_reporter->testRunEnded( TestRunStats( m_runInfo, m_totals, false ) );
-        }
+
+#include <cassert>
+#include <ostream>
+#include <sstream>
+#include <vector>
+
+#ifndef CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
+#define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH 80
+#endif
+
+namespace Catch { namespace clara { namespace TextFlow {
+
+    inline auto isWhitespace( char c ) -> bool {
+        static std::string chars = " \t\n\r";
+        return chars.find( c ) != std::string::npos;
+    }
+    inline auto isBreakableBefore( char c ) -> bool {
+        static std::string chars = "[({<|";
+        return chars.find( c ) != std::string::npos;
+    }
+    inline auto isBreakableAfter( char c ) -> bool {
+        static std::string chars = "])}>.,:;*+-=&/\\";
+        return chars.find( c ) != std::string::npos;
+    }
+
+    class Columns;
+
+    class Column {
+        std::vector<std::string> m_strings;
+        size_t m_width = CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH;
+        size_t m_indent = 0;
+        size_t m_initialIndent = std::string::npos;
 
     public:
-        // !TBD We need to do this another way!
-        bool aborting() const {
-            return m_totals.assertions.failed == static_cast<std::size_t>( m_config->abortAfter() );
-        }
+        class iterator {
+            friend Column;
 
-    private:
+            Column const& m_column;
+            size_t m_stringIndex = 0;
+            size_t m_pos = 0;
+
+            size_t m_len = 0;
+            size_t m_end = 0;
+            bool m_suffix = false;
+
+            iterator( Column const& column, size_t stringIndex )
+            :   m_column( column ),
+                m_stringIndex( stringIndex )
+            {}
+
+            auto line() const -> std::string const& { return m_column.m_strings[m_stringIndex]; }
+
+            auto isBoundary( size_t at ) const -> bool {
+                assert( at > 0 );
+                assert( at <= line().size() );
+
+                return at == line().size() ||
+                       ( isWhitespace( line()[at] ) && !isWhitespace( line()[at-1] ) ) ||
+                       isBreakableBefore( line()[at] ) ||
+                       isBreakableAfter( line()[at-1] );
+            }
+
+            void calcLength() {
+                assert( m_stringIndex < m_column.m_strings.size() );
+
+                m_suffix = false;
+                auto width = m_column.m_width-indent();
+                m_end = m_pos;
+                while( m_end < line().size() && line()[m_end] != '\n' )
+                    ++m_end;
 
-        void runCurrentTest( std::string& redirectedCout, std::string& redirectedCerr ) {
-            TestCaseInfo const& testCaseInfo = m_activeTestCase->getTestCaseInfo();
-            SectionInfo testCaseSection( testCaseInfo.lineInfo, testCaseInfo.name, testCaseInfo.description );
-            m_reporter->sectionStarting( testCaseSection );
-            Counts prevAssertions = m_totals.assertions;
-            double duration = 0;
-            try {
-                m_lastAssertionInfo = AssertionInfo( "TEST_CASE", testCaseInfo.lineInfo, "", ResultDisposition::Normal );
-
-                seedRng( *m_config );
-
-                Timer timer;
-                timer.start();
-                if( m_reporter->getPreferences().shouldRedirectStdOut ) {
-                    StreamRedirect coutRedir( Catch::cout(), redirectedCout );
-                    StreamRedirect cerrRedir( Catch::cerr(), redirectedCerr );
-                    invokeActiveTestCase();
+                if( m_end < m_pos + width ) {
+                    m_len = m_end - m_pos;
                 }
                 else {
-                    invokeActiveTestCase();
+                    size_t len = width;
+                    while (len > 0 && !isBoundary(m_pos + len))
+                        --len;
+                    while (len > 0 && isWhitespace( line()[m_pos + len - 1] ))
+                        --len;
+
+                    if (len > 0) {
+                        m_len = len;
+                    } else {
+                        m_suffix = true;
+                        m_len = width - 1;
+                    }
                 }
-                duration = timer.getElapsedSeconds();
             }
-            catch( TestFailureException& ) {
-                // This just means the test was aborted due to failure
+
+            auto indent() const -> size_t {
+                auto initial = m_pos == 0 && m_stringIndex == 0 ? m_column.m_initialIndent : std::string::npos;
+                return initial == std::string::npos ? m_column.m_indent : initial;
             }
-            catch(...) {
-                makeUnexpectedResultBuilder().useActiveException();
+
+            auto addIndentAndSuffix(std::string const &plain) const -> std::string {
+                return std::string( indent(), ' ' ) + (m_suffix ? plain + "-" : plain);
             }
-            m_testCaseTracker->close();
-            handleUnfinishedSections();
-            m_messages.clear();
 
-            Counts assertions = m_totals.assertions - prevAssertions;
-            bool missingAssertions = testForMissingAssertions( assertions );
+        public:
+            explicit iterator( Column const& column ) : m_column( column ) {
+                assert( m_column.m_width > m_column.m_indent );
+                assert( m_column.m_initialIndent == std::string::npos || m_column.m_width > m_column.m_initialIndent );
+                calcLength();
+                if( m_len == 0 )
+                    m_stringIndex++; // Empty string
+            }
+
+            auto operator *() const -> std::string {
+                assert( m_stringIndex < m_column.m_strings.size() );
+                assert( m_pos <= m_end );
+                if( m_pos + m_column.m_width < m_end )
+                    return addIndentAndSuffix(line().substr(m_pos, m_len));
+                else
+                    return addIndentAndSuffix(line().substr(m_pos, m_end - m_pos));
+            }
 
-            if( testCaseInfo.okToFail() ) {
-                std::swap( assertions.failedButOk, assertions.failed );
-                m_totals.assertions.failed -= assertions.failedButOk;
-                m_totals.assertions.failedButOk += assertions.failedButOk;
+            auto operator ++() -> iterator& {
+                m_pos += m_len;
+                if( m_pos < line().size() && line()[m_pos] == '\n' )
+                    m_pos += 1;
+                else
+                    while( m_pos < line().size() && isWhitespace( line()[m_pos] ) )
+                        ++m_pos;
+
+                if( m_pos == line().size() ) {
+                    m_pos = 0;
+                    ++m_stringIndex;
+                }
+                if( m_stringIndex < m_column.m_strings.size() )
+                    calcLength();
+                return *this;
+            }
+            auto operator ++(int) -> iterator {
+                iterator prev( *this );
+                operator++();
+                return prev;
             }
 
-            SectionStats testCaseSectionStats( testCaseSection, assertions, duration, missingAssertions );
-            m_reporter->sectionEnded( testCaseSectionStats );
-        }
+            auto operator ==( iterator const& other ) const -> bool {
+                return
+                    m_pos == other.m_pos &&
+                    m_stringIndex == other.m_stringIndex &&
+                    &m_column == &other.m_column;
+            }
+            auto operator !=( iterator const& other ) const -> bool {
+                return !operator==( other );
+            }
+        };
+        using const_iterator = iterator;
 
-        void invokeActiveTestCase() {
-            FatalConditionHandler fatalConditionHandler; // Handle signals
-            m_activeTestCase->invoke();
-            fatalConditionHandler.reset();
+        explicit Column( std::string const& text ) { m_strings.push_back( text ); }
+
+        auto width( size_t newWidth ) -> Column& {
+            assert( newWidth > 0 );
+            m_width = newWidth;
+            return *this;
+        }
+        auto indent( size_t newIndent ) -> Column& {
+            m_indent = newIndent;
+            return *this;
+        }
+        auto initialIndent( size_t newIndent ) -> Column& {
+            m_initialIndent = newIndent;
+            return *this;
         }
 
-    private:
+        auto width() const -> size_t { return m_width; }
+        auto begin() const -> iterator { return iterator( *this ); }
+        auto end() const -> iterator { return { *this, m_strings.size() }; }
 
-        ResultBuilder makeUnexpectedResultBuilder() const {
-            return ResultBuilder(   m_lastAssertionInfo.macroName.c_str(),
-                                    m_lastAssertionInfo.lineInfo,
-                                    m_lastAssertionInfo.capturedExpression.c_str(),
-                                    m_lastAssertionInfo.resultDisposition );
+        inline friend std::ostream& operator << ( std::ostream& os, Column const& col ) {
+            bool first = true;
+            for( auto line : col ) {
+                if( first )
+                    first = false;
+                else
+                    os << "\n";
+                os <<  line;
+            }
+            return os;
         }
 
-        void handleUnfinishedSections() {
-            // If sections ended prematurely due to an exception we stored their
-            // infos here so we can tear them down outside the unwind process.
-            for( std::vector<SectionEndInfo>::const_reverse_iterator it = m_unfinishedSections.rbegin(),
-                        itEnd = m_unfinishedSections.rend();
-                    it != itEnd;
-                    ++it )
-                sectionEnded( *it );
-            m_unfinishedSections.clear();
+        auto operator + ( Column const& other ) -> Columns;
+
+        auto toString() const -> std::string {
+            std::ostringstream oss;
+            oss << *this;
+            return oss.str();
         }
+    };
 
-        TestRunInfo m_runInfo;
-        IMutableContext& m_context;
-        TestCase const* m_activeTestCase;
-        ITracker* m_testCaseTracker;
-        ITracker* m_currentSectionTracker;
-        AssertionResult m_lastResult;
+    class Spacer : public Column {
 
-        Ptr<IConfig const> m_config;
-        Totals m_totals;
-        Ptr<IStreamingReporter> m_reporter;
-        std::vector<MessageInfo> m_messages;
-        AssertionInfo m_lastAssertionInfo;
-        std::vector<SectionEndInfo> m_unfinishedSections;
-        std::vector<ITracker*> m_activeSections;
-        TrackerContext m_trackerContext;
+    public:
+        explicit Spacer( size_t spaceWidth ) : Column( "" ) {
+            width( spaceWidth );
+        }
     };
 
-    IResultCapture& getResultCapture() {
-        if( IResultCapture* capture = getCurrentContext().getResultCapture() )
-            return *capture;
-        else
-            throw std::logic_error( "No result capture instance" );
-    }
+    class Columns {
+        std::vector<Column> m_columns;
 
-} // end namespace Catch
+    public:
 
-// #included from: internal/catch_version.h
-#define TWOBLUECUBES_CATCH_VERSION_H_INCLUDED
+        class iterator {
+            friend Columns;
+            struct EndTag {};
 
-namespace Catch {
+            std::vector<Column> const& m_columns;
+            std::vector<Column::iterator> m_iterators;
+            size_t m_activeIterators;
 
-    // Versioning information
-    struct Version {
-        Version(    unsigned int _majorVersion,
-                    unsigned int _minorVersion,
-                    unsigned int _patchNumber,
-                    std::string const& _branchName,
-                    unsigned int _buildNumber );
+            iterator( Columns const& columns, EndTag )
+            :   m_columns( columns.m_columns ),
+                m_activeIterators( 0 )
+            {
+                m_iterators.reserve( m_columns.size() );
 
-        unsigned int const majorVersion;
-        unsigned int const minorVersion;
-        unsigned int const patchNumber;
+                for( auto const& col : m_columns )
+                    m_iterators.push_back( col.end() );
+            }
 
-        // buildNumber is only used if branchName is not null
-        std::string const branchName;
-        unsigned int const buildNumber;
+        public:
+            explicit iterator( Columns const& columns )
+            :   m_columns( columns.m_columns ),
+                m_activeIterators( m_columns.size() )
+            {
+                m_iterators.reserve( m_columns.size() );
 
-        friend std::ostream& operator << ( std::ostream& os, Version const& version );
+                for( auto const& col : m_columns )
+                    m_iterators.push_back( col.begin() );
+            }
 
-    private:
-        void operator=( Version const& );
-    };
+            auto operator ==( iterator const& other ) const -> bool {
+                return m_iterators == other.m_iterators;
+            }
+            auto operator !=( iterator const& other ) const -> bool {
+                return m_iterators != other.m_iterators;
+            }
+            auto operator *() const -> std::string {
+                std::string row, padding;
 
-    extern Version libraryVersion;
-}
+                for( size_t i = 0; i < m_columns.size(); ++i ) {
+                    auto width = m_columns[i].width();
+                    if( m_iterators[i] != m_columns[i].end() ) {
+                        std::string col = *m_iterators[i];
+                        row += padding + col;
+                        if( col.size() < width )
+                            padding = std::string( width - col.size(), ' ' );
+                        else
+                            padding = "";
+                    }
+                    else {
+                        padding += std::string( width, ' ' );
+                    }
+                }
+                return row;
+            }
+            auto operator ++() -> iterator& {
+                for( size_t i = 0; i < m_columns.size(); ++i ) {
+                    if (m_iterators[i] != m_columns[i].end())
+                        ++m_iterators[i];
+                }
+                return *this;
+            }
+            auto operator ++(int) -> iterator {
+                iterator prev( *this );
+                operator++();
+                return prev;
+            }
+        };
+        using const_iterator = iterator;
 
-#include <fstream>
-#include <stdlib.h>
-#include <limits>
+        auto begin() const -> iterator { return iterator( *this ); }
+        auto end() const -> iterator { return { *this, iterator::EndTag() }; }
 
-namespace Catch {
+        auto operator += ( Column const& col ) -> Columns& {
+            m_columns.push_back( col );
+            return *this;
+        }
+        auto operator + ( Column const& col ) -> Columns {
+            Columns combined = *this;
+            combined += col;
+            return combined;
+        }
+
+        inline friend std::ostream& operator << ( std::ostream& os, Columns const& cols ) {
 
-    Ptr<IStreamingReporter> createReporter( std::string const& reporterName, Ptr<Config> const& config ) {
-        Ptr<IStreamingReporter> reporter = getRegistryHub().getReporterRegistry().create( reporterName, config.get() );
-        if( !reporter ) {
+            bool first = true;
+            for( auto line : cols ) {
+                if( first )
+                    first = false;
+                else
+                    os << "\n";
+                os << line;
+            }
+            return os;
+        }
+
+        auto toString() const -> std::string {
             std::ostringstream oss;
-            oss << "No reporter registered with name: '" << reporterName << "'";
-            throw std::domain_error( oss.str() );
+            oss << *this;
+            return oss.str();
         }
-        return reporter;
+    };
+
+    inline auto Column::operator + ( Column const& other ) -> Columns {
+        Columns cols;
+        cols += *this;
+        cols += other;
+        return cols;
     }
+}}} // namespace Catch::clara::TextFlow
 
-    Ptr<IStreamingReporter> makeReporter( Ptr<Config> const& config ) {
-        std::vector<std::string> reporters = config->getReporterNames();
-        if( reporters.empty() )
-            reporters.push_back( "console" );
+// ----------- end of #include from clara_textflow.hpp -----------
+// ........... back in clara.hpp
 
-        Ptr<IStreamingReporter> reporter;
-        for( std::vector<std::string>::const_iterator it = reporters.begin(), itEnd = reporters.end();
-                it != itEnd;
-                ++it )
-            reporter = addReporter( reporter, createReporter( *it, config ) );
-        return reporter;
-    }
-    Ptr<IStreamingReporter> addListeners( Ptr<IConfig const> const& config, Ptr<IStreamingReporter> reporters ) {
-        IReporterRegistry::Listeners listeners = getRegistryHub().getReporterRegistry().getListeners();
-        for( IReporterRegistry::Listeners::const_iterator it = listeners.begin(), itEnd = listeners.end();
-                it != itEnd;
-                ++it )
-            reporters = addReporter(reporters, (*it)->create( ReporterConfig( config ) ) );
-        return reporters;
-    }
+#include <memory>
+#include <set>
+#include <algorithm>
 
-    Totals runTests( Ptr<Config> const& config ) {
+#if !defined(CATCH_PLATFORM_WINDOWS) && ( defined(WIN32) || defined(__WIN32__) || defined(_WIN32) || defined(_MSC_VER) )
+#define CATCH_PLATFORM_WINDOWS
+#endif
 
-        Ptr<IConfig const> iconfig = config.get();
+namespace Catch { namespace clara {
+namespace detail {
 
-        Ptr<IStreamingReporter> reporter = makeReporter( config );
-        reporter = addListeners( iconfig, reporter );
+    // Traits for extracting arg and return type of lambdas (for single argument lambdas)
+    template<typename L>
+    struct UnaryLambdaTraits : UnaryLambdaTraits<decltype( &L::operator() )> {};
 
-        RunContext context( iconfig, reporter );
+    template<typename ClassT, typename ReturnT, typename... Args>
+    struct UnaryLambdaTraits<ReturnT( ClassT::* )( Args... ) const> {
+        static const bool isValid = false;
+    };
 
-        Totals totals;
+    template<typename ClassT, typename ReturnT, typename ArgT>
+    struct UnaryLambdaTraits<ReturnT( ClassT::* )( ArgT ) const> {
+        static const bool isValid = true;
+        using ArgType = typename std::remove_const<typename std::remove_reference<ArgT>::type>::type;;
+        using ReturnType = ReturnT;
+    };
 
-        context.testGroupStarting( config->name(), 1, 1 );
+    class TokenStream;
 
-        TestSpec testSpec = config->testSpec();
-        if( !testSpec.hasFilters() )
-            testSpec = TestSpecParser( ITagAliasRegistry::get() ).parse( "~[.]" ).testSpec(); // All not hidden tests
-
-        std::vector<TestCase> const& allTestCases = getAllTestCasesSorted( *iconfig );
-        for( std::vector<TestCase>::const_iterator it = allTestCases.begin(), itEnd = allTestCases.end();
-                it != itEnd;
-                ++it ) {
-            if( !context.aborting() && matchTest( *it, testSpec, *iconfig ) )
-                totals += context.runTest( *it );
-            else
-                reporter->skipTest( *it );
+    // Transport for raw args (copied from main args, or supplied via init list for testing)
+    class Args {
+        friend TokenStream;
+        std::string m_exeName;
+        std::vector<std::string> m_args;
+
+    public:
+        Args( int argc, char *argv[] ) {
+            m_exeName = argv[0];
+            for( int i = 1; i < argc; ++i )
+                m_args.push_back( argv[i] );
         }
 
-        context.testGroupEnded( iconfig->name(), totals, 1, 1 );
-        return totals;
-    }
+        Args( std::initializer_list<std::string> args )
+        :   m_exeName( *args.begin() ),
+            m_args( args.begin()+1, args.end() )
+        {}
 
-    void applyFilenamesAsTags( IConfig const& config ) {
-        std::vector<TestCase> const& tests = getAllTestCasesSorted( config );
-        for(std::size_t i = 0; i < tests.size(); ++i ) {
-            TestCase& test = const_cast<TestCase&>( tests[i] );
-            std::set<std::string> tags = test.tags;
+        auto exeName() const -> std::string {
+            return m_exeName;
+        }
+    };
 
-            std::string filename = test.lineInfo.file;
-            std::string::size_type lastSlash = filename.find_last_of( "\\/" );
-            if( lastSlash != std::string::npos )
-                filename = filename.substr( lastSlash+1 );
+    // Wraps a token coming from a token stream. These may not directly correspond to strings as a single string
+    // may encode an option + its argument if the : or = form is used
+    enum class TokenType {
+        Option, Argument
+    };
+    struct Token {
+        TokenType type;
+        std::string token;
+    };
 
-            std::string::size_type lastDot = filename.find_last_of( "." );
-            if( lastDot != std::string::npos )
-                filename = filename.substr( 0, lastDot );
+    inline auto isOptPrefix( char c ) -> bool {
+        return c == '-'
+#ifdef CATCH_PLATFORM_WINDOWS
+            || c == '/'
+#endif
+        ;
+    }
+
+    // Abstracts iterators into args as a stream of tokens, with option arguments uniformly handled
+    class TokenStream {
+        using Iterator = std::vector<std::string>::const_iterator;
+        Iterator it;
+        Iterator itEnd;
+        std::vector<Token> m_tokenBuffer;
+
+        void loadBuffer() {
+            m_tokenBuffer.resize( 0 );
+
+            // Skip any empty strings
+            while( it != itEnd && it->empty() )
+                ++it;
+
+            if( it != itEnd ) {
+                auto const &next = *it;
+                if( isOptPrefix( next[0] ) ) {
+                    auto delimiterPos = next.find_first_of( " :=" );
+                    if( delimiterPos != std::string::npos ) {
+                        m_tokenBuffer.push_back( { TokenType::Option, next.substr( 0, delimiterPos ) } );
+                        m_tokenBuffer.push_back( { TokenType::Argument, next.substr( delimiterPos + 1 ) } );
+                    } else {
+                        if( next[1] != '-' && next.size() > 2 ) {
+                            std::string opt = "- ";
+                            for( size_t i = 1; i < next.size(); ++i ) {
+                                opt[1] = next[i];
+                                m_tokenBuffer.push_back( { TokenType::Option, opt } );
+                            }
+                        } else {
+                            m_tokenBuffer.push_back( { TokenType::Option, next } );
+                        }
+                    }
+                } else {
+                    m_tokenBuffer.push_back( { TokenType::Argument, next } );
+                }
+            }
+        }
+
+    public:
+        explicit TokenStream( Args const &args ) : TokenStream( args.m_args.begin(), args.m_args.end() ) {}
 
-            tags.insert( "#" + filename );
-            setTags( test, tags );
+        TokenStream( Iterator it, Iterator itEnd ) : it( it ), itEnd( itEnd ) {
+            loadBuffer();
         }
-    }
 
-    class Session : NonCopyable {
-        static bool alreadyInstantiated;
+        explicit operator bool() const {
+            return !m_tokenBuffer.empty() || it != itEnd;
+        }
 
-    public:
+        auto count() const -> size_t { return m_tokenBuffer.size() + (itEnd - it); }
 
-        struct OnUnusedOptions { enum DoWhat { Ignore, Fail }; };
+        auto operator*() const -> Token {
+            assert( !m_tokenBuffer.empty() );
+            return m_tokenBuffer.front();
+        }
 
-        Session()
-        : m_cli( makeCommandLineParser() ) {
-            if( alreadyInstantiated ) {
-                std::string msg = "Only one instance of Catch::Session can ever be used";
-                Catch::cerr() << msg << std::endl;
-                throw std::logic_error( msg );
-            }
-            alreadyInstantiated = true;
+        auto operator->() const -> Token const * {
+            assert( !m_tokenBuffer.empty() );
+            return &m_tokenBuffer.front();
         }
-        ~Session() {
-            Catch::cleanUp();
+
+        auto operator++() -> TokenStream & {
+            if( m_tokenBuffer.size() >= 2 ) {
+                m_tokenBuffer.erase( m_tokenBuffer.begin() );
+            } else {
+                if( it != itEnd )
+                    ++it;
+                loadBuffer();
+            }
+            return *this;
         }
+    };
+
+    class ResultBase {
+    public:
+        enum Type {
+            Ok, LogicError, RuntimeError
+        };
+
+    protected:
+        ResultBase( Type type ) : m_type( type ) {}
+        virtual ~ResultBase() = default;
 
-        void showHelp( std::string const& processName ) {
-            Catch::cout() << "\nCatch v" << libraryVersion << "\n";
+        virtual void enforceOk() const = 0;
 
-            m_cli.usage( Catch::cout(), processName );
-            Catch::cout() << "For more detail usage please see the project docs\n" << std::endl;
+        Type m_type;
+    };
+
+    template<typename T>
+    class ResultValueBase : public ResultBase {
+    public:
+        auto value() const -> T const & {
+            enforceOk();
+            return m_value;
         }
 
-        int applyCommandLine( int argc, char const* const* const argv, OnUnusedOptions::DoWhat unusedOptionBehaviour = OnUnusedOptions::Fail ) {
-            try {
-                m_cli.setThrowOnUnrecognisedTokens( unusedOptionBehaviour == OnUnusedOptions::Fail );
-                m_unusedTokens = m_cli.parseInto( Clara::argsToVector( argc, argv ), m_configData );
-                if( m_configData.showHelp )
-                    showHelp( m_configData.processName );
-                m_config.reset();
-            }
-            catch( std::exception& ex ) {
-                {
-                    Colour colourGuard( Colour::Red );
-                    Catch::cerr()
-                        << "\nError(s) in input:\n"
-                        << Text( ex.what(), TextAttributes().setIndent(2) )
-                        << "\n\n";
-                }
-                m_cli.usage( Catch::cout(), m_configData.processName );
-                return (std::numeric_limits<int>::max)();
-            }
-            return 0;
+    protected:
+        ResultValueBase( Type type ) : ResultBase( type ) {}
+
+        ResultValueBase( ResultValueBase const &other ) : ResultBase( other ) {
+            if( m_type == ResultBase::Ok )
+                new( &m_value ) T( other.m_value );
         }
 
-        void useConfigData( ConfigData const& _configData ) {
-            m_configData = _configData;
-            m_config.reset();
+        ResultValueBase( Type, T const &value ) : ResultBase( Ok ) {
+            new( &m_value ) T( value );
         }
 
-        int run( int argc, char const* const* const argv ) {
+        auto operator=( ResultValueBase const &other ) -> ResultValueBase & {
+            if( m_type == ResultBase::Ok )
+                m_value.~T();
+            ResultBase::operator=(other);
+            if( m_type == ResultBase::Ok )
+                new( &m_value ) T( other.m_value );
+            return *this;
+        }
 
-            int returnCode = applyCommandLine( argc, argv );
-            if( returnCode == 0 )
-                returnCode = run();
-            return returnCode;
+        ~ResultValueBase() {
+            if( m_type == Ok )
+                m_value.~T();
         }
 
-        int run() {
-            if( m_configData.showHelp )
-                return 0;
+        union {
+            T m_value;
+        };
+    };
 
-            try
-            {
-                config(); // Force config to be constructed
+    template<>
+    class ResultValueBase<void> : public ResultBase {
+    protected:
+        using ResultBase::ResultBase;
+    };
 
-                seedRng( *m_config );
+    template<typename T = void>
+    class BasicResult : public ResultValueBase<T> {
+    public:
+        template<typename U>
+        explicit BasicResult( BasicResult<U> const &other )
+        :   ResultValueBase<T>( other.type() ),
+            m_errorMessage( other.errorMessage() )
+        {
+            assert( type() != ResultBase::Ok );
+        }
 
-                if( m_configData.filenamesAsTags )
-                    applyFilenamesAsTags( *m_config );
+        template<typename U>
+        static auto ok( U const &value ) -> BasicResult { return { ResultBase::Ok, value }; }
+        static auto ok() -> BasicResult { return { ResultBase::Ok }; }
+        static auto logicError( std::string const &message ) -> BasicResult { return { ResultBase::LogicError, message }; }
+        static auto runtimeError( std::string const &message ) -> BasicResult { return { ResultBase::RuntimeError, message }; }
 
-                // Handle list request
-                if( Option<std::size_t> listed = list( config() ) )
-                    return static_cast<int>( *listed );
+        explicit operator bool() const { return m_type == ResultBase::Ok; }
+        auto type() const -> ResultBase::Type { return m_type; }
+        auto errorMessage() const -> std::string { return m_errorMessage; }
 
-                return static_cast<int>( runTests( m_config ).assertions.failed );
-            }
-            catch( std::exception& ex ) {
-                Catch::cerr() << ex.what() << std::endl;
-                return (std::numeric_limits<int>::max)();
+    protected:
+        virtual void enforceOk() const {
+            // !TBD: If no exceptions, std::terminate here or something
+            switch( m_type ) {
+                case ResultBase::LogicError:
+                    throw std::logic_error( m_errorMessage );
+                case ResultBase::RuntimeError:
+                    throw std::runtime_error( m_errorMessage );
+                case ResultBase::Ok:
+                    break;
             }
         }
 
-        Clara::CommandLine<ConfigData> const& cli() const {
-            return m_cli;
-        }
-        std::vector<Clara::Parser::Token> const& unusedTokens() const {
-            return m_unusedTokens;
-        }
-        ConfigData& configData() {
-            return m_configData;
-        }
-        Config& config() {
-            if( !m_config )
-                m_config = new Config( m_configData );
-            return *m_config;
+        std::string m_errorMessage; // Only populated if resultType is an error
+
+        BasicResult( ResultBase::Type type, std::string const &message )
+        :   ResultValueBase<T>(type),
+            m_errorMessage(message)
+        {
+            assert( m_type != ResultBase::Ok );
         }
-    private:
-        Clara::CommandLine<ConfigData> m_cli;
-        std::vector<Clara::Parser::Token> m_unusedTokens;
-        ConfigData m_configData;
-        Ptr<Config> m_config;
+
+        using ResultValueBase<T>::ResultValueBase;
+        using ResultBase::m_type;
     };
 
-    bool Session::alreadyInstantiated = false;
+    enum class ParseResultType {
+        Matched, NoMatch, ShortCircuitAll, ShortCircuitSame
+    };
 
-} // end namespace Catch
+    class ParseState {
+    public:
 
-// #included from: catch_registry_hub.hpp
-#define TWOBLUECUBES_CATCH_REGISTRY_HUB_HPP_INCLUDED
+        ParseState( ParseResultType type, TokenStream const &remainingTokens )
+        : m_type(type),
+          m_remainingTokens( remainingTokens )
+        {}
 
-// #included from: catch_test_case_registry_impl.hpp
-#define TWOBLUECUBES_CATCH_TEST_CASE_REGISTRY_IMPL_HPP_INCLUDED
+        auto type() const -> ParseResultType { return m_type; }
+        auto remainingTokens() const -> TokenStream { return m_remainingTokens; }
 
-#include <vector>
-#include <set>
-#include <sstream>
-#include <iostream>
-#include <algorithm>
+    private:
+        ParseResultType m_type;
+        TokenStream m_remainingTokens;
+    };
 
-namespace Catch {
+    using Result = BasicResult<void>;
+    using ParserResult = BasicResult<ParseResultType>;
+    using InternalParseResult = BasicResult<ParseState>;
 
-    struct LexSort {
-        bool operator() (TestCase i,TestCase j) const { return (i<j);}
+    struct HelpColumns {
+        std::string left;
+        std::string right;
     };
-    struct RandomNumberGenerator {
-        int operator()( int n ) const { return std::rand() % n; }
+
+    template<typename T>
+    inline auto convertInto( std::string const &source, T& target ) -> ParserResult {
+        std::stringstream ss;
+        ss << source;
+        ss >> target;
+        if( ss.fail() )
+            return ParserResult::runtimeError( "Unable to convert '" + source + "' to destination type" );
+        else
+            return ParserResult::ok( ParseResultType::Matched );
+    }
+    inline auto convertInto( std::string const &source, std::string& target ) -> ParserResult {
+        target = source;
+        return ParserResult::ok( ParseResultType::Matched );
+    }
+    inline auto convertInto( std::string const &source, bool &target ) -> ParserResult {
+        std::string srcLC = source;
+        std::transform( srcLC.begin(), srcLC.end(), srcLC.begin(), []( char c ) { return static_cast<char>( ::tolower(c) ); } );
+        if (srcLC == "y" || srcLC == "1" || srcLC == "true" || srcLC == "yes" || srcLC == "on")
+            target = true;
+        else if (srcLC == "n" || srcLC == "0" || srcLC == "false" || srcLC == "no" || srcLC == "off")
+            target = false;
+        else
+            return ParserResult::runtimeError( "Expected a boolean value but did not recognise: '" + source + "'" );
+        return ParserResult::ok( ParseResultType::Matched );
+    }
+
+    struct BoundRefBase {
+        BoundRefBase() = default;
+        BoundRefBase( BoundRefBase const & ) = delete;
+        BoundRefBase( BoundRefBase && ) = delete;
+        BoundRefBase &operator=( BoundRefBase const & ) = delete;
+        BoundRefBase &operator=( BoundRefBase && ) = delete;
+
+        virtual ~BoundRefBase() = default;
+
+        virtual auto isFlag() const -> bool = 0;
+        virtual auto isContainer() const -> bool { return false; }
+        virtual auto setValue( std::string const &arg ) -> ParserResult = 0;
+        virtual auto setFlag( bool flag ) -> ParserResult = 0;
     };
 
-    inline std::vector<TestCase> sortTests( IConfig const& config, std::vector<TestCase> const& unsortedTestCases ) {
+    struct BoundValueRefBase : BoundRefBase {
+        auto isFlag() const -> bool override { return false; }
 
-        std::vector<TestCase> sorted = unsortedTestCases;
+        auto setFlag( bool ) -> ParserResult override {
+            return ParserResult::logicError( "Flags can only be set on boolean fields" );
+        }
+    };
 
-        switch( config.runOrder() ) {
-            case RunTests::InLexicographicalOrder:
-                std::sort( sorted.begin(), sorted.end(), LexSort() );
-                break;
-            case RunTests::InRandomOrder:
-                {
-                    seedRng( config );
+    struct BoundFlagRefBase : BoundRefBase {
+        auto isFlag() const -> bool override { return true; }
 
-                    RandomNumberGenerator rng;
-                    std::random_shuffle( sorted.begin(), sorted.end(), rng );
-                }
-                break;
-            case RunTests::InDeclarationOrder:
-                // already in declaration order
-                break;
+        auto setValue( std::string const &arg ) -> ParserResult override {
+            bool flag;
+            auto result = convertInto( arg, flag );
+            if( result )
+                setFlag( flag );
+            return result;
         }
-        return sorted;
-    }
-    bool matchTest( TestCase const& testCase, TestSpec const& testSpec, IConfig const& config ) {
-        return testSpec.matches( testCase ) && ( config.allowThrows() || !testCase.throws() );
-    }
+    };
 
-    void enforceNoDuplicateTestCases( std::vector<TestCase> const& functions ) {
-        std::set<TestCase> seenFunctions;
-        for( std::vector<TestCase>::const_iterator it = functions.begin(), itEnd = functions.end();
-            it != itEnd;
-            ++it ) {
-            std::pair<std::set<TestCase>::const_iterator, bool> prev = seenFunctions.insert( *it );
-            if( !prev.second ){
-                Catch::cerr()
-                << Colour( Colour::Red )
-                << "error: TEST_CASE( \"" << it->name << "\" ) already defined.\n"
-                << "\tFirst seen at " << prev.first->getTestCaseInfo().lineInfo << "\n"
-                << "\tRedefined at " << it->getTestCaseInfo().lineInfo << std::endl;
-                exit(1);
-            }
+    template<typename T>
+    struct BoundRef : BoundValueRefBase {
+        T &m_ref;
+
+        explicit BoundRef( T &ref ) : m_ref( ref ) {}
+
+        auto setValue( std::string const &arg ) -> ParserResult override {
+            return convertInto( arg, m_ref );
         }
-    }
+    };
 
-    std::vector<TestCase> filterTests( std::vector<TestCase> const& testCases, TestSpec const& testSpec, IConfig const& config ) {
-        std::vector<TestCase> filtered;
-        filtered.reserve( testCases.size() );
-        for( std::vector<TestCase>::const_iterator it = testCases.begin(), itEnd = testCases.end();
-                it != itEnd;
-                ++it )
-            if( matchTest( *it, testSpec, config ) )
-                filtered.push_back( *it );
-        return filtered;
-    }
-    std::vector<TestCase> const& getAllTestCasesSorted( IConfig const& config ) {
-        return getRegistryHub().getTestCaseRegistry().getAllTestsSorted( config );
-    }
+    template<typename T>
+    struct BoundRef<std::vector<T>> : BoundValueRefBase {
+        std::vector<T> &m_ref;
 
-    class TestRegistry : public ITestCaseRegistry {
-    public:
-        TestRegistry()
-        :   m_currentSortOrder( RunTests::InDeclarationOrder ),
-            m_unnamedCount( 0 )
-        {}
-        virtual ~TestRegistry();
+        explicit BoundRef( std::vector<T> &ref ) : m_ref( ref ) {}
 
-        virtual void registerTest( TestCase const& testCase ) {
-            std::string name = testCase.getTestCaseInfo().name;
-            if( name == "" ) {
-                std::ostringstream oss;
-                oss << "Anonymous test case " << ++m_unnamedCount;
-                return registerTest( testCase.withName( oss.str() ) );
-            }
-            m_functions.push_back( testCase );
+        auto isContainer() const -> bool override { return true; }
+
+        auto setValue( std::string const &arg ) -> ParserResult override {
+            T temp;
+            auto result = convertInto( arg, temp );
+            if( result )
+                m_ref.push_back( temp );
+            return result;
         }
+    };
 
-        virtual std::vector<TestCase> const& getAllTests() const {
-            return m_functions;
+    struct BoundFlagRef : BoundFlagRefBase {
+        bool &m_ref;
+
+        explicit BoundFlagRef( bool &ref ) : m_ref( ref ) {}
+
+        auto setFlag( bool flag ) -> ParserResult override {
+            m_ref = flag;
+            return ParserResult::ok( ParseResultType::Matched );
         }
-        virtual std::vector<TestCase> const& getAllTestsSorted( IConfig const& config ) const {
-            if( m_sortedFunctions.empty() )
-                enforceNoDuplicateTestCases( m_functions );
+    };
 
-            if(  m_currentSortOrder != config.runOrder() || m_sortedFunctions.empty() ) {
-                m_sortedFunctions = sortTests( config, m_functions );
-                m_currentSortOrder = config.runOrder();
-            }
-            return m_sortedFunctions;
+    template<typename ReturnType>
+    struct LambdaInvoker {
+        static_assert( std::is_same<ReturnType, ParserResult>::value, "Lambda must return void or clara::ParserResult" );
+
+        template<typename L, typename ArgType>
+        static auto invoke( L const &lambda, ArgType const &arg ) -> ParserResult {
+            return lambda( arg );
         }
+    };
 
-    private:
-        std::vector<TestCase> m_functions;
-        mutable RunTests::InWhatOrder m_currentSortOrder;
-        mutable std::vector<TestCase> m_sortedFunctions;
-        size_t m_unnamedCount;
-        std::ios_base::Init m_ostreamInit; // Forces cout/ cerr to be initialised
+    template<>
+    struct LambdaInvoker<void> {
+        template<typename L, typename ArgType>
+        static auto invoke( L const &lambda, ArgType const &arg ) -> ParserResult {
+            lambda( arg );
+            return ParserResult::ok( ParseResultType::Matched );
+        }
     };
 
-    ///////////////////////////////////////////////////////////////////////////
+    template<typename ArgType, typename L>
+    inline auto invokeLambda( L const &lambda, std::string const &arg ) -> ParserResult {
+        ArgType temp;
+        auto result = convertInto( arg, temp );
+        return !result
+           ? result
+           : LambdaInvoker<typename UnaryLambdaTraits<L>::ReturnType>::invoke( lambda, temp );
+    };
 
-    class FreeFunctionTestCase : public SharedImpl<ITestCase> {
-    public:
+    template<typename L>
+    struct BoundLambda : BoundValueRefBase {
+        L m_lambda;
 
-        FreeFunctionTestCase( TestFunction fun ) : m_fun( fun ) {}
+        static_assert( UnaryLambdaTraits<L>::isValid, "Supplied lambda must take exactly one argument" );
+        explicit BoundLambda( L const &lambda ) : m_lambda( lambda ) {}
 
-        virtual void invoke() const {
-            m_fun();
+        auto setValue( std::string const &arg ) -> ParserResult override {
+            return invokeLambda<typename UnaryLambdaTraits<L>::ArgType>( m_lambda, arg );
         }
+    };
 
-    private:
-        virtual ~FreeFunctionTestCase();
+    template<typename L>
+    struct BoundFlagLambda : BoundFlagRefBase {
+        L m_lambda;
 
-        TestFunction m_fun;
-    };
+        static_assert( UnaryLambdaTraits<L>::isValid, "Supplied lambda must take exactly one argument" );
+        static_assert( std::is_same<typename UnaryLambdaTraits<L>::ArgType, bool>::value, "flags must be boolean" );
 
-    inline std::string extractClassName( std::string const& classOrQualifiedMethodName ) {
-        std::string className = classOrQualifiedMethodName;
-        if( startsWith( className, "&" ) )
-        {
-            std::size_t lastColons = className.rfind( "::" );
-            std::size_t penultimateColons = className.rfind( "::", lastColons-1 );
-            if( penultimateColons == std::string::npos )
-                penultimateColons = 1;
-            className = className.substr( penultimateColons, lastColons-penultimateColons );
+        explicit BoundFlagLambda( L const &lambda ) : m_lambda( lambda ) {}
+
+        auto setFlag( bool flag ) -> ParserResult override {
+            return LambdaInvoker<typename UnaryLambdaTraits<L>::ReturnType>::invoke( m_lambda, flag );
         }
-        return className;
-    }
+    };
 
-    void registerTestCase
-        (   ITestCase* testCase,
-            char const* classOrQualifiedMethodName,
-            NameAndDesc const& nameAndDesc,
-            SourceLineInfo const& lineInfo ) {
+    enum class Optionality { Optional, Required };
 
-        getMutableRegistryHub().registerTest
-            ( makeTestCase
-                (   testCase,
-                    extractClassName( classOrQualifiedMethodName ),
-                    nameAndDesc.name,
-                    nameAndDesc.description,
-                    lineInfo ) );
-    }
-    void registerTestCaseFunction
-        (   TestFunction function,
-            SourceLineInfo const& lineInfo,
-            NameAndDesc const& nameAndDesc ) {
-        registerTestCase( new FreeFunctionTestCase( function ), "", nameAndDesc, lineInfo );
-    }
+    struct Parser;
 
-    ///////////////////////////////////////////////////////////////////////////
+    class ParserBase {
+    public:
+        virtual ~ParserBase() = default;
+        virtual auto validate() const -> Result { return Result::ok(); }
+        virtual auto parse( std::string const& exeName, TokenStream const &tokens) const -> InternalParseResult  = 0;
+        virtual auto cardinality() const -> size_t { return 1; }
 
-    AutoReg::AutoReg
-        (   TestFunction function,
-            SourceLineInfo const& lineInfo,
-            NameAndDesc const& nameAndDesc ) {
-        registerTestCaseFunction( function, lineInfo, nameAndDesc );
-    }
+        auto parse( Args const &args ) const -> InternalParseResult {
+            return parse( args.exeName(), TokenStream( args ) );
+        }
+    };
 
-    AutoReg::~AutoReg() {}
+    template<typename DerivedT>
+    class ComposableParserImpl : public ParserBase {
+    public:
+        template<typename T>
+        auto operator|( T const &other ) const -> Parser;
+    };
 
-} // end namespace Catch
+    // Common code and state for Args and Opts
+    template<typename DerivedT>
+    class ParserRefImpl : public ComposableParserImpl<DerivedT> {
+    protected:
+        Optionality m_optionality = Optionality::Optional;
+        std::shared_ptr<BoundRefBase> m_ref;
+        std::string m_hint;
+        std::string m_description;
 
-// #included from: catch_reporter_registry.hpp
-#define TWOBLUECUBES_CATCH_REPORTER_REGISTRY_HPP_INCLUDED
+        explicit ParserRefImpl( std::shared_ptr<BoundRefBase> const &ref ) : m_ref( ref ) {}
 
-#include <map>
+    public:
+        template<typename T>
+        ParserRefImpl( T &ref, std::string const &hint )
+        :   m_ref( std::make_shared<BoundRef<T>>( ref ) ),
+            m_hint( hint )
+        {}
 
-namespace Catch {
+        template<typename LambdaT>
+        ParserRefImpl( LambdaT const &ref, std::string const &hint )
+        :   m_ref( std::make_shared<BoundLambda<LambdaT>>( ref ) ),
+            m_hint(hint)
+        {}
 
-    class ReporterRegistry : public IReporterRegistry {
+        auto operator()( std::string const &description ) -> DerivedT & {
+            m_description = description;
+            return static_cast<DerivedT &>( *this );
+        }
 
-    public:
+        auto optional() -> DerivedT & {
+            m_optionality = Optionality::Optional;
+            return static_cast<DerivedT &>( *this );
+        };
 
-        virtual ~ReporterRegistry() CATCH_OVERRIDE {}
+        auto required() -> DerivedT & {
+            m_optionality = Optionality::Required;
+            return static_cast<DerivedT &>( *this );
+        };
+
+        auto isOptional() const -> bool {
+            return m_optionality == Optionality::Optional;
+        }
 
-        virtual IStreamingReporter* create( std::string const& name, Ptr<IConfig const> const& config ) const CATCH_OVERRIDE {
-            FactoryMap::const_iterator it =  m_factories.find( name );
-            if( it == m_factories.end() )
-                return CATCH_NULL;
-            return it->second->create( ReporterConfig( config ) );
+        auto cardinality() const -> size_t override {
+            if( m_ref->isContainer() )
+                return 0;
+            else
+                return 1;
         }
 
-        void registerReporter( std::string const& name, Ptr<IReporterFactory> const& factory ) {
-            m_factories.insert( std::make_pair( name, factory ) );
+        auto hint() const -> std::string { return m_hint; }
+    };
+
+    class ExeName : public ComposableParserImpl<ExeName> {
+        std::shared_ptr<std::string> m_name;
+        std::shared_ptr<BoundRefBase> m_ref;
+
+        template<typename LambdaT>
+        static auto makeRef(LambdaT const &lambda) -> std::shared_ptr<BoundRefBase> {
+            return std::make_shared<BoundLambda<LambdaT>>( lambda) ;
         }
-        void registerListener( Ptr<IReporterFactory> const& factory ) {
-            m_listeners.push_back( factory );
+
+    public:
+        ExeName() : m_name( std::make_shared<std::string>( "<executable>" ) ) {}
+
+        explicit ExeName( std::string &ref ) : ExeName() {
+            m_ref = std::make_shared<BoundRef<std::string>>( ref );
         }
 
-        virtual FactoryMap const& getFactories() const CATCH_OVERRIDE {
-            return m_factories;
+        template<typename LambdaT>
+        explicit ExeName( LambdaT const& lambda ) : ExeName() {
+            m_ref = std::make_shared<BoundLambda<LambdaT>>( lambda );
         }
-        virtual Listeners const& getListeners() const CATCH_OVERRIDE {
-            return m_listeners;
+
+        // The exe name is not parsed out of the normal tokens, but is handled specially
+        auto parse( std::string const&, TokenStream const &tokens ) const -> InternalParseResult override {
+            return InternalParseResult::ok( ParseState( ParseResultType::NoMatch, tokens ) );
         }
 
-    private:
-        FactoryMap m_factories;
-        Listeners m_listeners;
+        auto name() const -> std::string { return *m_name; }
+        auto set( std::string const& newName ) -> ParserResult {
+
+            auto lastSlash = newName.find_last_of( "\\/" );
+            auto filename = ( lastSlash == std::string::npos )
+                    ? newName
+                    : newName.substr( lastSlash+1 );
+
+            *m_name = filename;
+            if( m_ref )
+                return m_ref->setValue( filename );
+            else
+                return ParserResult::ok( ParseResultType::Matched );
+        }
     };
-}
 
-// #included from: catch_exception_translator_registry.hpp
-#define TWOBLUECUBES_CATCH_EXCEPTION_TRANSLATOR_REGISTRY_HPP_INCLUDED
+    class Arg : public ParserRefImpl<Arg> {
+    public:
+        using ParserRefImpl::ParserRefImpl;
 
-#ifdef __OBJC__
-#import "Foundation/Foundation.h"
+        auto parse( std::string const &, TokenStream const &tokens ) const -> InternalParseResult override {
+            auto validationResult = validate();
+            if( !validationResult )
+                return InternalParseResult( validationResult );
+
+            auto remainingTokens = tokens;
+            auto const &token = *remainingTokens;
+            if( token.type != TokenType::Argument )
+                return InternalParseResult::ok( ParseState( ParseResultType::NoMatch, remainingTokens ) );
+
+            auto result = m_ref->setValue( remainingTokens->token );
+            if( !result )
+                return InternalParseResult( result );
+            else
+                return InternalParseResult::ok( ParseState( ParseResultType::Matched, ++remainingTokens ) );
+        }
+    };
+
+    inline auto normaliseOpt( std::string const &optName ) -> std::string {
+#ifdef CATCH_PLATFORM_WINDOWS
+        if( optName[0] == '/' )
+            return "-" + optName.substr( 1 );
+        else
 #endif
+            return optName;
+    }
 
-namespace Catch {
+    class Opt : public ParserRefImpl<Opt> {
+    protected:
+        std::vector<std::string> m_optNames;
 
-    class ExceptionTranslatorRegistry : public IExceptionTranslatorRegistry {
     public:
-        ~ExceptionTranslatorRegistry() {
-            deleteAll( m_translators );
+        template<typename LambdaT>
+        explicit Opt( LambdaT const &ref ) : ParserRefImpl( std::make_shared<BoundFlagLambda<LambdaT>>( ref ) ) {}
+
+        explicit Opt( bool &ref ) : ParserRefImpl( std::make_shared<BoundFlagRef>( ref ) ) {}
+
+        template<typename LambdaT>
+        Opt( LambdaT const &ref, std::string const &hint ) : ParserRefImpl( ref, hint ) {}
+
+        template<typename T>
+        Opt( T &ref, std::string const &hint ) : ParserRefImpl( ref, hint ) {}
+
+        auto operator[]( std::string const &optName ) -> Opt & {
+            m_optNames.push_back( optName );
+            return *this;
         }
 
-        virtual void registerTranslator( const IExceptionTranslator* translator ) {
-            m_translators.push_back( translator );
+        auto getHelpColumns() const -> std::vector<HelpColumns> {
+            std::ostringstream oss;
+            bool first = true;
+            for( auto const &opt : m_optNames ) {
+                if (first)
+                    first = false;
+                else
+                    oss << ", ";
+                oss << opt;
+            }
+            if( !m_hint.empty() )
+                oss << " <" << m_hint << ">";
+            return { { oss.str(), m_description } };
         }
 
-        virtual std::string translateActiveException() const {
-            try {
-#ifdef __OBJC__
-                // In Objective-C try objective-c exceptions first
-                @try {
-                    return tryTranslators();
-                }
-                @catch (NSException *exception) {
-                    return Catch::toString( [exception description] );
+        auto isMatch( std::string const &optToken ) const -> bool {
+            auto normalisedToken = normaliseOpt( optToken );
+            for( auto const &name : m_optNames ) {
+                if( normaliseOpt( name ) == normalisedToken )
+                    return true;
+            }
+            return false;
+        }
+
+        using ParserBase::parse;
+
+        auto parse( std::string const&, TokenStream const &tokens ) const -> InternalParseResult override {
+            auto validationResult = validate();
+            if( !validationResult )
+                return InternalParseResult( validationResult );
+
+            auto remainingTokens = tokens;
+            if( remainingTokens && remainingTokens->type == TokenType::Option ) {
+                auto const &token = *remainingTokens;
+                if( isMatch(token.token ) ) {
+                    if( m_ref->isFlag() ) {
+                        auto result = m_ref->setFlag( true );
+                        if( !result )
+                            return InternalParseResult( result );
+                        if( result.value() == ParseResultType::ShortCircuitAll )
+                            return InternalParseResult::ok( ParseState( result.value(), remainingTokens ) );
+                    } else {
+                        ++remainingTokens;
+                        if( !remainingTokens )
+                            return InternalParseResult::runtimeError( "Expected argument following " + token.token );
+                        auto const &argToken = *remainingTokens;
+                        if( argToken.type != TokenType::Argument )
+                            return InternalParseResult::runtimeError( "Expected argument following " + token.token );
+                        auto result = m_ref->setValue( argToken.token );
+                        if( !result )
+                            return InternalParseResult( result );
+                        if( result.value() == ParseResultType::ShortCircuitAll )
+                            return InternalParseResult::ok( ParseState( result.value(), remainingTokens ) );
+                    }
+                    return InternalParseResult::ok( ParseState( ParseResultType::Matched, ++remainingTokens ) );
                 }
+            }
+            return InternalParseResult::ok( ParseState( ParseResultType::NoMatch, remainingTokens ) );
+        }
+
+        auto validate() const -> Result override {
+            if( m_optNames.empty() )
+                return Result::logicError( "No options supplied to Opt" );
+            for( auto const &name : m_optNames ) {
+                if( name.empty() )
+                    return Result::logicError( "Option name cannot be empty" );
+#ifdef CATCH_PLATFORM_WINDOWS
+                if( name[0] != '-' && name[0] != '/' )
+                    return Result::logicError( "Option name must begin with '-' or '/'" );
 #else
-                return tryTranslators();
+                if( name[0] != '-' )
+                    return Result::logicError( "Option name must begin with '-'" );
 #endif
             }
-            catch( TestFailureException& ) {
-                throw;
-            }
-            catch( std::exception& ex ) {
-                return ex.what();
-            }
-            catch( std::string& msg ) {
-                return msg;
-            }
-            catch( const char* msg ) {
-                return msg;
-            }
-            catch(...) {
-                return "Unknown exception";
-            }
+            return ParserRefImpl::validate();
         }
+    };
 
-        std::string tryTranslators() const {
-            if( m_translators.empty() )
-                throw;
-            else
-                return m_translators[0]->translate( m_translators.begin()+1, m_translators.end() );
+    struct Help : Opt {
+        Help( bool &showHelpFlag )
+        :   Opt([&]( bool flag ) {
+                showHelpFlag = flag;
+                return ParserResult::ok( ParseResultType::ShortCircuitAll );
+            })
+        {
+            static_cast<Opt &>( *this )
+                    ("display usage information")
+                    ["-?"]["-h"]["--help"]
+                    .optional();
         }
-
-    private:
-        std::vector<const IExceptionTranslator*> m_translators;
     };
-}
 
-namespace Catch {
+    struct Parser : ParserBase {
 
-    namespace {
+        mutable ExeName m_exeName;
+        std::vector<Opt> m_options;
+        std::vector<Arg> m_args;
 
-        class RegistryHub : public IRegistryHub, public IMutableRegistryHub {
+        auto operator|=( ExeName const &exeName ) -> Parser & {
+            m_exeName = exeName;
+            return *this;
+        }
 
-            RegistryHub( RegistryHub const& );
-            void operator=( RegistryHub const& );
+        auto operator|=( Arg const &arg ) -> Parser & {
+            m_args.push_back(arg);
+            return *this;
+        }
 
-        public: // IRegistryHub
-            RegistryHub() {
-            }
-            virtual IReporterRegistry const& getReporterRegistry() const CATCH_OVERRIDE {
-                return m_reporterRegistry;
-            }
-            virtual ITestCaseRegistry const& getTestCaseRegistry() const CATCH_OVERRIDE {
-                return m_testCaseRegistry;
-            }
-            virtual IExceptionTranslatorRegistry& getExceptionTranslatorRegistry() CATCH_OVERRIDE {
-                return m_exceptionTranslatorRegistry;
+        auto operator|=( Opt const &opt ) -> Parser & {
+            m_options.push_back(opt);
+            return *this;
+        }
+
+        auto operator|=( Parser const &other ) -> Parser & {
+            m_options.insert(m_options.end(), other.m_options.begin(), other.m_options.end());
+            m_args.insert(m_args.end(), other.m_args.begin(), other.m_args.end());
+            return *this;
+        }
+
+        template<typename T>
+        auto operator|( T const &other ) const -> Parser {
+            return Parser( *this ) |= other;
+        }
+
+        auto getHelpColumns() const -> std::vector<HelpColumns> {
+            std::vector<HelpColumns> cols;
+            for (auto const &o : m_options) {
+                auto childCols = o.getHelpColumns();
+                cols.insert( cols.end(), childCols.begin(), childCols.end() );
             }
+            return cols;
+        }
 
-        public: // IMutableRegistryHub
-            virtual void registerReporter( std::string const& name, Ptr<IReporterFactory> const& factory ) CATCH_OVERRIDE {
-                m_reporterRegistry.registerReporter( name, factory );
+        void writeToStream( std::ostream &os ) const {
+            if (!m_exeName.name().empty()) {
+                os << "usage:\n" << "  " << m_exeName.name() << " ";
+                bool required = true, first = true;
+                for( auto const &arg : m_args ) {
+                    if (first)
+                        first = false;
+                    else
+                        os << " ";
+                    if( arg.isOptional() && required ) {
+                        os << "[";
+                        required = false;
+                    }
+                    os << "<" << arg.hint() << ">";
+                    if( arg.cardinality() == 0 )
+                        os << " ... ";
+                }
+                if( !required )
+                    os << "]";
+                if( !m_options.empty() )
+                    os << " options";
+                os << "\n\nwhere options are:" << std::endl;
             }
-            virtual void registerListener( Ptr<IReporterFactory> const& factory ) CATCH_OVERRIDE {
-                m_reporterRegistry.registerListener( factory );
+
+            auto rows = getHelpColumns();
+            size_t consoleWidth = CATCH_CLARA_CONFIG_CONSOLE_WIDTH;
+            size_t optWidth = 0;
+            for( auto const &cols : rows )
+                optWidth = (std::max)(optWidth, cols.left.size() + 2);
+
+            for( auto const &cols : rows ) {
+                auto row =
+                        TextFlow::Column( cols.left ).width( optWidth ).indent( 2 ) +
+                        TextFlow::Spacer(4) +
+                        TextFlow::Column( cols.right ).width( consoleWidth - 7 - optWidth );
+                os << row << std::endl;
             }
-            virtual void registerTest( TestCase const& testInfo ) CATCH_OVERRIDE {
-                m_testCaseRegistry.registerTest( testInfo );
+        }
+
+        friend auto operator<<( std::ostream &os, Parser const &parser ) -> std::ostream& {
+            parser.writeToStream( os );
+            return os;
+        }
+
+        auto validate() const -> Result override {
+            for( auto const &opt : m_options ) {
+                auto result = opt.validate();
+                if( !result )
+                    return result;
             }
-            virtual void registerTranslator( const IExceptionTranslator* translator ) CATCH_OVERRIDE {
-                m_exceptionTranslatorRegistry.registerTranslator( translator );
+            for( auto const &arg : m_args ) {
+                auto result = arg.validate();
+                if( !result )
+                    return result;
             }
+            return Result::ok();
+        }
 
-        private:
-            TestRegistry m_testCaseRegistry;
-            ReporterRegistry m_reporterRegistry;
-            ExceptionTranslatorRegistry m_exceptionTranslatorRegistry;
-        };
+        using ParserBase::parse;
 
-        // Single, global, instance
-        inline RegistryHub*& getTheRegistryHub() {
-            static RegistryHub* theRegistryHub = CATCH_NULL;
-            if( !theRegistryHub )
-                theRegistryHub = new RegistryHub();
-            return theRegistryHub;
+        auto parse( std::string const& exeName, TokenStream const &tokens ) const -> InternalParseResult override {
+
+            struct ParserInfo {
+                ParserBase const* parser = nullptr;
+                size_t count = 0;
+            };
+            const size_t totalParsers = m_options.size() + m_args.size();
+            assert( totalParsers < 512 );
+            // ParserInfo parseInfos[totalParsers]; // <-- this is what we really want to do
+            ParserInfo parseInfos[512];
+
+            {
+                size_t i = 0;
+                for (auto const &opt : m_options) parseInfos[i++].parser = &opt;
+                for (auto const &arg : m_args) parseInfos[i++].parser = &arg;
+            }
+
+            m_exeName.set( exeName );
+
+            auto result = InternalParseResult::ok( ParseState( ParseResultType::NoMatch, tokens ) );
+            while( result.value().remainingTokens() ) {
+                bool tokenParsed = false;
+
+                for( size_t i = 0; i < totalParsers; ++i ) {
+                    auto&  parseInfo = parseInfos[i];
+                    if( parseInfo.parser->cardinality() == 0 || parseInfo.count < parseInfo.parser->cardinality() ) {
+                        result = parseInfo.parser->parse(exeName, result.value().remainingTokens());
+                        if (!result)
+                            return result;
+                        if (result.value().type() != ParseResultType::NoMatch) {
+                            tokenParsed = true;
+                            ++parseInfo.count;
+                            break;
+                        }
+                    }
+                }
+
+                if( result.value().type() == ParseResultType::ShortCircuitAll )
+                    return result;
+                if( !tokenParsed )
+                    return InternalParseResult::runtimeError( "Unrecognised token: " + result.value().remainingTokens()->token );
+            }
+            // !TBD Check missing required options
+            return result;
         }
-    }
+    };
 
-    IRegistryHub& getRegistryHub() {
-        return *getTheRegistryHub();
-    }
-    IMutableRegistryHub& getMutableRegistryHub() {
-        return *getTheRegistryHub();
-    }
-    void cleanUp() {
-        delete getTheRegistryHub();
-        getTheRegistryHub() = CATCH_NULL;
-        cleanUpContext();
-    }
-    std::string translateActiveException() {
-        return getRegistryHub().getExceptionTranslatorRegistry().translateActiveException();
+    template<typename DerivedT>
+    template<typename T>
+    auto ComposableParserImpl<DerivedT>::operator|( T const &other ) const -> Parser {
+        return Parser() | static_cast<DerivedT const &>( *this ) | other;
     }
+} // namespace detail
 
-} // end namespace Catch
+// A Combined parser
+using detail::Parser;
 
-// #included from: catch_notimplemented_exception.hpp
-#define TWOBLUECUBES_CATCH_NOTIMPLEMENTED_EXCEPTION_HPP_INCLUDED
+// A parser for options
+using detail::Opt;
 
-#include <ostream>
+// A parser for arguments
+using detail::Arg;
 
-namespace Catch {
+// Wrapper for argc, argv from main()
+using detail::Args;
 
-    NotImplementedException::NotImplementedException( SourceLineInfo const& lineInfo )
-    :   m_lineInfo( lineInfo ) {
-        std::ostringstream oss;
-        oss << lineInfo << ": function ";
-        oss << "not implemented";
-        m_what = oss.str();
-    }
+// Specifies the name of the executable
+using detail::ExeName;
 
-    const char* NotImplementedException::what() const CATCH_NOEXCEPT {
-        return m_what.c_str();
-    }
+// Convenience wrapper for option parser that specifies the help option
+using detail::Help;
 
-} // end namespace Catch
+// enum of result types from a parse
+using detail::ParseResultType;
 
-// #included from: catch_context_impl.hpp
-#define TWOBLUECUBES_CATCH_CONTEXT_IMPL_HPP_INCLUDED
+// Result type for parser operation
+using detail::ParserResult;
 
-// #included from: catch_stream.hpp
-#define TWOBLUECUBES_CATCH_STREAM_HPP_INCLUDED
+}} // namespace Catch::clara
 
-#include <stdexcept>
-#include <cstdio>
-#include <iostream>
+// end clara.hpp
+#ifdef __clang__
+#pragma clang diagnostic pop
+#endif
+
+// Restore Clara's value for console width, if present
+#ifdef CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH
+#define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH
+#undef CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH
+#endif
 
+// end catch_clara.h
 namespace Catch {
 
-    template<typename WriterF, size_t bufferSize=256>
-    class StreamBufImpl : public StreamBufBase {
-        char data[bufferSize];
-        WriterF m_writer;
+    clara::Parser makeCommandLineParser( ConfigData& config );
 
-    public:
-        StreamBufImpl() {
-            setp( data, data + sizeof(data) );
-        }
+} // end namespace Catch
 
-        ~StreamBufImpl() CATCH_NOEXCEPT {
-            sync();
-        }
+// end catch_commandline.h
+#include <fstream>
+#include <ctime>
 
-    private:
-        int overflow( int c ) {
-            sync();
+namespace Catch {
 
-            if( c != EOF ) {
-                if( pbase() == epptr() )
-                    m_writer( std::string( 1, static_cast<char>( c ) ) );
-                else
-                    sputc( static_cast<char>( c ) );
-            }
-            return 0;
-        }
+    clara::Parser makeCommandLineParser( ConfigData& config ) {
 
-        int sync() {
-            if( pbase() != pptr() ) {
-                m_writer( std::string( pbase(), static_cast<std::string::size_type>( pptr() - pbase() ) ) );
-                setp( pbase(), epptr() );
-            }
-            return 0;
-        }
-    };
+        using namespace clara;
 
-    ///////////////////////////////////////////////////////////////////////////
+        auto const setWarning = [&]( std::string const& warning ) {
+                if( warning != "NoAssertions" )
+                    return ParserResult::runtimeError( "Unrecognised warning: '" + warning + "'" );
+                config.warnings = static_cast<WarnAbout::What>( config.warnings | WarnAbout::NoAssertions );
+                return ParserResult::ok( ParseResultType::Matched );
+            };
+        auto const loadTestNamesFromFile = [&]( std::string const& filename ) {
+                std::ifstream f( filename.c_str() );
+                if( !f.is_open() )
+                    return ParserResult::runtimeError( "Unable to load input file: '" + filename + "'" );
+
+                std::string line;
+                while( std::getline( f, line ) ) {
+                    line = trim(line);
+                    if( !line.empty() && !startsWith( line, '#' ) ) {
+                        if( !startsWith( line, '"' ) )
+                            line = '"' + line + '"';
+                        config.testsOrTags.push_back( line + ',' );
+                    }
+                }
+                return ParserResult::ok( ParseResultType::Matched );
+            };
+        auto const setTestOrder = [&]( std::string const& order ) {
+                if( startsWith( "declared", order ) )
+                    config.runOrder = RunTests::InDeclarationOrder;
+                else if( startsWith( "lexical", order ) )
+                    config.runOrder = RunTests::InLexicographicalOrder;
+                else if( startsWith( "random", order ) )
+                    config.runOrder = RunTests::InRandomOrder;
+                else
+                    return clara::ParserResult::runtimeError( "Unrecognised ordering: '" + order + "'" );
+                return ParserResult::ok( ParseResultType::Matched );
+            };
+        auto const setRngSeed = [&]( std::string const& seed ) {
+                if( seed != "time" )
+                    return clara::detail::convertInto( seed, config.rngSeed );
+                config.rngSeed = static_cast<unsigned int>( std::time(nullptr) );
+                return ParserResult::ok( ParseResultType::Matched );
+            };
+        auto const setColourUsage = [&]( std::string const& useColour ) {
+                    auto mode = toLower( useColour );
+
+                    if( mode == "yes" )
+                        config.useColour = UseColour::Yes;
+                    else if( mode == "no" )
+                        config.useColour = UseColour::No;
+                    else if( mode == "auto" )
+                        config.useColour = UseColour::Auto;
+                    else
+                        return ParserResult::runtimeError( "colour mode must be one of: auto, yes or no. '" + useColour + "' not recognised" );
+                return ParserResult::ok( ParseResultType::Matched );
+            };
+        auto const setWaitForKeypress = [&]( std::string const& keypress ) {
+                auto keypressLc = toLower( keypress );
+                if( keypressLc == "start" )
+                    config.waitForKeypress = WaitForKeypress::BeforeStart;
+                else if( keypressLc == "exit" )
+                    config.waitForKeypress = WaitForKeypress::BeforeExit;
+                else if( keypressLc == "both" )
+                    config.waitForKeypress = WaitForKeypress::BeforeStartAndExit;
+                else
+                    return ParserResult::runtimeError( "keypress argument must be one of: start, exit or both. '" + keypress + "' not recognised" );
+            return ParserResult::ok( ParseResultType::Matched );
+            };
+        auto const setVerbosity = [&]( std::string const& verbosity ) {
+            auto lcVerbosity = toLower( verbosity );
+            if( lcVerbosity == "quiet" )
+                config.verbosity = Verbosity::Quiet;
+            else if( lcVerbosity == "normal" )
+                config.verbosity = Verbosity::Normal;
+            else if( lcVerbosity == "high" )
+                config.verbosity = Verbosity::High;
+            else
+                return ParserResult::runtimeError( "Unrecognised verbosity, '" + verbosity + "'" );
+            return ParserResult::ok( ParseResultType::Matched );
+        };
 
-    FileStream::FileStream( std::string const& filename ) {
-        m_ofs.open( filename.c_str() );
-        if( m_ofs.fail() ) {
-            std::ostringstream oss;
-            oss << "Unable to open file: '" << filename << "'";
-            throw std::domain_error( oss.str() );
-        }
-    }
+        auto cli
+            = ExeName( config.processName )
+            | Help( config.showHelp )
+            | Opt( config.listTests )
+                ["-l"]["--list-tests"]
+                ( "list all/matching test cases" )
+            | Opt( config.listTags )
+                ["-t"]["--list-tags"]
+                ( "list all/matching tags" )
+            | Opt( config.showSuccessfulTests )
+                ["-s"]["--success"]
+                ( "include successful tests in output" )
+            | Opt( config.shouldDebugBreak )
+                ["-b"]["--break"]
+                ( "break into debugger on failure" )
+            | Opt( config.noThrow )
+                ["-e"]["--nothrow"]
+                ( "skip exception tests" )
+            | Opt( config.showInvisibles )
+                ["-i"]["--invisibles"]
+                ( "show invisibles (tabs, newlines)" )
+            | Opt( config.outputFilename, "filename" )
+                ["-o"]["--out"]
+                ( "output filename" )
+            | Opt( config.reporterNames, "name" )
+                ["-r"]["--reporter"]
+                ( "reporter to use (defaults to console)" )
+            | Opt( config.name, "name" )
+                ["-n"]["--name"]
+                ( "suite name" )
+            | Opt( [&]( bool ){ config.abortAfter = 1; } )
+                ["-a"]["--abort"]
+                ( "abort at first failure" )
+            | Opt( [&]( int x ){ config.abortAfter = x; }, "no. failures" )
+                ["-x"]["--abortx"]
+                ( "abort after x failures" )
+            | Opt( setWarning, "warning name" )
+                ["-w"]["--warn"]
+                ( "enable warnings" )
+            | Opt( [&]( bool flag ) { config.showDurations = flag ? ShowDurations::Always : ShowDurations::Never; }, "yes|no" )
+                ["-d"]["--durations"]
+                ( "show test durations" )
+            | Opt( loadTestNamesFromFile, "filename" )
+                ["-f"]["--input-file"]
+                ( "load test names to run from a file" )
+            | Opt( config.filenamesAsTags )
+                ["-#"]["--filenames-as-tags"]
+                ( "adds a tag for the filename" )
+            | Opt( config.sectionsToRun, "section name" )
+                ["-c"]["--section"]
+                ( "specify section to run" )
+            | Opt( setVerbosity, "quiet|normal|high" )
+                ["-v"]["--verbosity"]
+                ( "set output verbosity" )
+            | Opt( config.listTestNamesOnly )
+                ["--list-test-names-only"]
+                ( "list all/matching test cases names only" )
+            | Opt( config.listReporters )
+                ["--list-reporters"]
+                ( "list all reporters" )
+            | Opt( setTestOrder, "decl|lex|rand" )
+                ["--order"]
+                ( "test case order (defaults to decl)" )
+            | Opt( setRngSeed, "'time'|number" )
+                ["--rng-seed"]
+                ( "set a specific seed for random numbers" )
+            | Opt( setColourUsage, "yes|no" )
+                ["--use-colour"]
+                ( "should output be colourised" )
+            | Opt( config.libIdentify )
+                ["--libidentify"]
+                ( "report name and version according to libidentify standard" )
+            | Opt( setWaitForKeypress, "start|exit|both" )
+                ["--wait-for-keypress"]
+                ( "waits for a keypress before exiting" )
+            | Opt( config.benchmarkResolutionMultiple, "multiplier" )
+                ["--benchmark-resolution-multiple"]
+                ( "multiple of clock resolution to run benchmarks" )
+
+            | Arg( config.testsOrTags, "test name|pattern|tags" )
+                ( "which test or tests to use" );
 
-    std::ostream& FileStream::stream() const {
-        return m_ofs;
+        return cli;
     }
 
-    struct OutputDebugWriter {
-
-        void operator()( std::string const&str ) {
-            writeToDebugConsole( str );
-        }
-    };
+} // end namespace Catch
+// end catch_commandline.cpp
+// start catch_common.cpp
 
-    DebugOutStream::DebugOutStream()
-    :   m_streamBuf( new StreamBufImpl<OutputDebugWriter>() ),
-        m_os( m_streamBuf.get() )
-    {}
+#include <cstring>
+#include <ostream>
 
-    std::ostream& DebugOutStream::stream() const {
-        return m_os;
-    }
+namespace Catch {
 
-    // Store the streambuf from cout up-front because
-    // cout may get redirected when running tests
-    CoutStream::CoutStream()
-    :   m_os( Catch::cout().rdbuf() )
+    SourceLineInfo::SourceLineInfo( char const* _file, std::size_t _line ) noexcept
+    :   file( _file ),
+        line( _line )
     {}
-
-    std::ostream& CoutStream::stream() const {
-        return m_os;
+    bool SourceLineInfo::empty() const noexcept {
+        return file[0] == '\0';
     }
-
-#ifndef CATCH_CONFIG_NOSTDOUT // If you #define this you must implement these functions
-    std::ostream& cout() {
-        return std::cout;
+    bool SourceLineInfo::operator == ( SourceLineInfo const& other ) const noexcept {
+        return line == other.line && (file == other.file || std::strcmp(file, other.file) == 0);
     }
-    std::ostream& cerr() {
-        return std::cerr;
+    bool SourceLineInfo::operator < ( SourceLineInfo const& other ) const noexcept {
+        return line < other.line || ( line == other.line && (std::strcmp(file, other.file) < 0));
     }
+
+    std::ostream& operator << ( std::ostream& os, SourceLineInfo const& info ) {
+#ifndef __GNUG__
+        os << info.file << '(' << info.line << ')';
+#else
+        os << info.file << ':' << info.line;
 #endif
-}
+        return os;
+    }
 
-namespace Catch {
+    bool isTrue( bool value ){ return value; }
+    bool alwaysTrue() { return true; }
+    bool alwaysFalse() { return false; }
 
-    class Context : public IMutableContext {
+    std::string StreamEndStop::operator+() const {
+        return std::string();
+    }
 
-        Context() : m_config( CATCH_NULL ), m_runner( CATCH_NULL ), m_resultCapture( CATCH_NULL ) {}
-        Context( Context const& );
-        void operator=( Context const& );
+    NonCopyable::NonCopyable() = default;
+    NonCopyable::~NonCopyable() = default;
 
-    public: // IContext
-        virtual IResultCapture* getResultCapture() {
-            return m_resultCapture;
-        }
-        virtual IRunner* getRunner() {
-            return m_runner;
-        }
-        virtual size_t getGeneratorIndex( std::string const& fileInfo, size_t totalSize ) {
-            return getGeneratorsForCurrentTest()
-            .getGeneratorInfo( fileInfo, totalSize )
-            .getCurrentIndex();
-        }
-        virtual bool advanceGeneratorsForCurrentTest() {
-            IGeneratorsForTest* generators = findGeneratorsForCurrentTest();
-            return generators && generators->moveNext();
-        }
+}
+// end catch_common.cpp
+// start catch_config.cpp
 
-        virtual Ptr<IConfig const> getConfig() const {
-            return m_config;
-        }
+namespace Catch {
 
-    public: // IMutableContext
-        virtual void setResultCapture( IResultCapture* resultCapture ) {
-            m_resultCapture = resultCapture;
-        }
-        virtual void setRunner( IRunner* runner ) {
-            m_runner = runner;
-        }
-        virtual void setConfig( Ptr<IConfig const> const& config ) {
-            m_config = config;
+    Config::Config( ConfigData const& data )
+    :   m_data( data ),
+        m_stream( openStream() )
+    {
+        if( !data.testsOrTags.empty() ) {
+            TestSpecParser parser( ITagAliasRegistry::get() );
+            for( auto const& testOrTags : data.testsOrTags )
+                parser.parse( testOrTags );
+            m_testSpec = parser.testSpec();
+        }
+    }
+
+    std::string const& Config::getFilename() const {
+        return m_data.outputFilename ;
+    }
+
+    bool Config::listTests() const          { return m_data.listTests; }
+    bool Config::listTestNamesOnly() const  { return m_data.listTestNamesOnly; }
+    bool Config::listTags() const           { return m_data.listTags; }
+    bool Config::listReporters() const      { return m_data.listReporters; }
+
+    std::string Config::getProcessName() const { return m_data.processName; }
+
+    std::vector<std::string> const& Config::getReporterNames() const { return m_data.reporterNames; }
+    std::vector<std::string> const& Config::getSectionsToRun() const { return m_data.sectionsToRun; }
+
+    TestSpec const& Config::testSpec() const { return m_testSpec; }
+
+    bool Config::showHelp() const { return m_data.showHelp; }
+
+    // IConfig interface
+    bool Config::allowThrows() const                   { return !m_data.noThrow; }
+    std::ostream& Config::stream() const               { return m_stream->stream(); }
+    std::string Config::name() const                   { return m_data.name.empty() ? m_data.processName : m_data.name; }
+    bool Config::includeSuccessfulResults() const      { return m_data.showSuccessfulTests; }
+    bool Config::warnAboutMissingAssertions() const    { return m_data.warnings & WarnAbout::NoAssertions; }
+    ShowDurations::OrNot Config::showDurations() const { return m_data.showDurations; }
+    RunTests::InWhatOrder Config::runOrder() const     { return m_data.runOrder; }
+    unsigned int Config::rngSeed() const               { return m_data.rngSeed; }
+    int Config::benchmarkResolutionMultiple() const    { return m_data.benchmarkResolutionMultiple; }
+    UseColour::YesOrNo Config::useColour() const       { return m_data.useColour; }
+    bool Config::shouldDebugBreak() const              { return m_data.shouldDebugBreak; }
+    int Config::abortAfter() const                     { return m_data.abortAfter; }
+    bool Config::showInvisibles() const                { return m_data.showInvisibles; }
+    Verbosity Config::verbosity() const                { return m_data.verbosity; }
+
+    IStream const* Config::openStream() {
+        if( m_data.outputFilename.empty() )
+            return new CoutStream();
+        else if( m_data.outputFilename[0] == '%' ) {
+            if( m_data.outputFilename == "%debug" )
+                return new DebugOutStream();
+            else
+                CATCH_ERROR( "Unrecognised stream: '" << m_data.outputFilename << "'" );
         }
+        else
+            return new FileStream( m_data.outputFilename );
+    }
 
-        friend IMutableContext& getCurrentMutableContext();
+} // end namespace Catch
+// end catch_config.cpp
+// start catch_console_colour.cpp
 
-    private:
-        IGeneratorsForTest* findGeneratorsForCurrentTest() {
-            std::string testName = getResultCapture()->getCurrentTestName();
+#if defined(__clang__)
+#    pragma clang diagnostic push
+#    pragma clang diagnostic ignored "-Wexit-time-destructors"
+#endif
 
-            std::map<std::string, IGeneratorsForTest*>::const_iterator it =
-                m_generatorsByTestName.find( testName );
-            return it != m_generatorsByTestName.end()
-                ? it->second
-                : CATCH_NULL;
-        }
+// start catch_errno_guard.h
 
-        IGeneratorsForTest& getGeneratorsForCurrentTest() {
-            IGeneratorsForTest* generators = findGeneratorsForCurrentTest();
-            if( !generators ) {
-                std::string testName = getResultCapture()->getCurrentTestName();
-                generators = createGeneratorsForTest();
-                m_generatorsByTestName.insert( std::make_pair( testName, generators ) );
-            }
-            return *generators;
-        }
+namespace Catch {
 
+    class ErrnoGuard {
+    public:
+        ErrnoGuard();
+        ~ErrnoGuard();
     private:
-        Ptr<IConfig const> m_config;
-        IRunner* m_runner;
-        IResultCapture* m_resultCapture;
-        std::map<std::string, IGeneratorsForTest*> m_generatorsByTestName;
+        int m_oldErrno;
     };
 
-    namespace {
-        Context* currentContext = CATCH_NULL;
-    }
-    IMutableContext& getCurrentMutableContext() {
-        if( !currentContext )
-            currentContext = new Context();
-        return *currentContext;
-    }
-    IContext& getCurrentContext() {
-        return getCurrentMutableContext();
-    }
-
-    void cleanUpContext() {
-        delete currentContext;
-        currentContext = CATCH_NULL;
-    }
 }
 
-// #included from: catch_console_colour_impl.hpp
-#define TWOBLUECUBES_CATCH_CONSOLE_COLOUR_IMPL_HPP_INCLUDED
+// end catch_errno_guard.h
+// start catch_windows_h_proxy.h
+
+
+#if defined(CATCH_PLATFORM_WINDOWS)
+
+#if !defined(NOMINMAX) && !defined(CATCH_CONFIG_NO_NOMINMAX)
+#  define CATCH_DEFINED_NOMINMAX
+#  define NOMINMAX
+#endif
+#if !defined(WIN32_LEAN_AND_MEAN) && !defined(CATCH_CONFIG_NO_WIN32_LEAN_AND_MEAN)
+#  define CATCH_DEFINED_WIN32_LEAN_AND_MEAN
+#  define WIN32_LEAN_AND_MEAN
+#endif
+
+#ifdef __AFXDLL
+#include <AfxWin.h>
+#else
+#include <windows.h>
+#endif
+
+#ifdef CATCH_DEFINED_NOMINMAX
+#  undef NOMINMAX
+#endif
+#ifdef CATCH_DEFINED_WIN32_LEAN_AND_MEAN
+#  undef WIN32_LEAN_AND_MEAN
+#endif
+
+#endif // defined(CATCH_PLATFORM_WINDOWS)
 
+// end catch_windows_h_proxy.h
 namespace Catch {
     namespace {
 
         struct IColourImpl {
-            virtual ~IColourImpl() {}
+            virtual ~IColourImpl() = default;
             virtual void use( Colour::Code _colourCode ) = 0;
         };
 
@@ -7020,16 +5949,6 @@ namespace Catch {
 
 #if defined ( CATCH_CONFIG_COLOUR_WINDOWS ) /////////////////////////////////////////
 
-#ifndef NOMINMAX
-#define NOMINMAX
-#endif
-
-#ifdef __AFXDLL
-#include <AfxWin.h>
-#else
-#include <windows.h>
-#endif
-
 namespace Catch {
 namespace {
 
@@ -7043,7 +5962,7 @@ namespace {
             originalBackgroundAttributes = csbiInfo.wAttributes & ~( FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE | FOREGROUND_INTENSITY );
         }
 
-        virtual void use( Colour::Code _colourCode ) {
+        virtual void use( Colour::Code _colourCode ) override {
             switch( _colourCode ) {
                 case Colour::None:      return setTextAttribute( originalForegroundAttributes );
                 case Colour::White:     return setTextAttribute( FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE );
@@ -7059,7 +5978,7 @@ namespace {
                 case Colour::BrightGreen:   return setTextAttribute( FOREGROUND_INTENSITY | FOREGROUND_GREEN );
                 case Colour::BrightWhite:   return setTextAttribute( FOREGROUND_INTENSITY | FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE );
 
-                case Colour::Bright: throw std::logic_error( "not a colour" );
+                case Colour::Bright: CATCH_INTERNAL_ERROR( "not a colour" );
             }
         }
 
@@ -7075,14 +5994,12 @@ namespace {
     IColourImpl* platformColourInstance() {
         static Win32ColourImpl s_instance;
 
-        Ptr<IConfig const> config = getCurrentContext().getConfig();
+        IConfigPtr config = getCurrentContext().getConfig();
         UseColour::YesOrNo colourMode = config
             ? config->useColour()
             : UseColour::Auto;
         if( colourMode == UseColour::Auto )
-            colourMode = !isDebuggerActive()
-                ? UseColour::Yes
-                : UseColour::No;
+            colourMode = UseColour::Yes;
         return colourMode == UseColour::Yes
             ? &s_instance
             : NoColourImpl::instance();
@@ -7104,13 +6021,13 @@ namespace {
     // https://github.com/philsquared/Catch/pull/131
     class PosixColourImpl : public IColourImpl {
     public:
-        virtual void use( Colour::Code _colourCode ) {
+        virtual void use( Colour::Code _colourCode ) override {
             switch( _colourCode ) {
                 case Colour::None:
                 case Colour::White:     return setColour( "[0m" );
                 case Colour::Red:       return setColour( "[0;31m" );
                 case Colour::Green:     return setColour( "[0;32m" );
-                case Colour::Blue:      return setColour( "[0:34m" );
+                case Colour::Blue:      return setColour( "[0;34m" );
                 case Colour::Cyan:      return setColour( "[0;36m" );
                 case Colour::Yellow:    return setColour( "[0;33m" );
                 case Colour::Grey:      return setColour( "[1;30m" );
@@ -7120,7 +6037,7 @@ namespace {
                 case Colour::BrightGreen:   return setColour( "[1;32m" );
                 case Colour::BrightWhite:   return setColour( "[1;37m" );
 
-                case Colour::Bright: throw std::logic_error( "not a colour" );
+                case Colour::Bright: CATCH_INTERNAL_ERROR( "not a colour" );
             }
         }
         static IColourImpl* instance() {
@@ -7134,13 +6051,21 @@ namespace {
         }
     };
 
+    bool useColourOnPlatform() {
+        return
+#ifdef CATCH_PLATFORM_MAC
+            !isDebuggerActive() &&
+#endif
+            isatty(STDOUT_FILENO);
+    }
     IColourImpl* platformColourInstance() {
-        Ptr<IConfig const> config = getCurrentContext().getConfig();
+        ErrnoGuard guard;
+        IConfigPtr config = getCurrentContext().getConfig();
         UseColour::YesOrNo colourMode = config
             ? config->useColour()
             : UseColour::Auto;
         if( colourMode == UseColour::Auto )
-            colourMode = (!isDebuggerActive() && isatty(STDOUT_FILENO) )
+            colourMode = useColourOnPlatform()
                 ? UseColour::Yes
                 : UseColour::No;
         return colourMode == UseColour::Yes
@@ -7163,8 +6088,17 @@ namespace Catch {
 
 namespace Catch {
 
-    Colour::Colour( Code _colourCode ) : m_moved( false ) { use( _colourCode ); }
-    Colour::Colour( Colour const& _other ) : m_moved( false ) { const_cast<Colour&>( _other ).m_moved = true; }
+    Colour::Colour( Code _colourCode ) { use( _colourCode ); }
+    Colour::Colour( Colour&& rhs ) noexcept {
+        m_moved = rhs.m_moved;
+        rhs.m_moved = true;
+    }
+    Colour& Colour::operator=( Colour&& rhs ) noexcept {
+        m_moved = rhs.m_moved;
+        rhs.m_moved  = true;
+        return *this;
+    }
+
     Colour::~Colour(){ if( !m_moved ) use( None ); }
 
     void Colour::use( Code _colourCode ) {
@@ -7172,385 +6106,1053 @@ namespace Catch {
         impl->use( _colourCode );
     }
 
+    std::ostream& operator << ( std::ostream& os, Colour const& ) {
+        return os;
+    }
+
 } // end namespace Catch
 
-// #included from: catch_generators_impl.hpp
-#define TWOBLUECUBES_CATCH_GENERATORS_IMPL_HPP_INCLUDED
+#if defined(__clang__)
+#    pragma clang diagnostic pop
+#endif
 
-#include <vector>
-#include <string>
-#include <map>
+// end catch_console_colour.cpp
+// start catch_context.cpp
 
 namespace Catch {
 
-    struct GeneratorInfo : IGeneratorInfo {
+    class Context : public IMutableContext, NonCopyable {
 
-        GeneratorInfo( std::size_t size )
-        :   m_size( size ),
-            m_currentIndex( 0 )
-        {}
+    public: // IContext
+        virtual IResultCapture* getResultCapture() override {
+            return m_resultCapture;
+        }
+        virtual IRunner* getRunner() override {
+            return m_runner;
+        }
 
-        bool moveNext() {
-            if( ++m_currentIndex == m_size ) {
-                m_currentIndex = 0;
-                return false;
-            }
-            return true;
+        virtual IConfigPtr getConfig() const override {
+            return m_config;
         }
 
-        std::size_t getCurrentIndex() const {
-            return m_currentIndex;
+        virtual ~Context() override;
+
+    public: // IMutableContext
+        virtual void setResultCapture( IResultCapture* resultCapture ) override {
+            m_resultCapture = resultCapture;
+        }
+        virtual void setRunner( IRunner* runner ) override {
+            m_runner = runner;
         }
+        virtual void setConfig( IConfigPtr const& config ) override {
+            m_config = config;
+        }
+
+        friend IMutableContext& getCurrentMutableContext();
 
-        std::size_t m_size;
-        std::size_t m_currentIndex;
+    private:
+        IConfigPtr m_config;
+        IRunner* m_runner = nullptr;
+        IResultCapture* m_resultCapture = nullptr;
     };
 
-    ///////////////////////////////////////////////////////////////////////////
+    namespace {
+        Context* currentContext = nullptr;
+    }
+    IMutableContext& getCurrentMutableContext() {
+        if( !currentContext )
+            currentContext = new Context();
+        return *currentContext;
+    }
+    IContext& getCurrentContext() {
+        return getCurrentMutableContext();
+    }
 
-    class GeneratorsForTest : public IGeneratorsForTest {
+    void cleanUpContext() {
+        delete currentContext;
+        currentContext = nullptr;
+    }
+    IContext::~IContext() = default;
+    IMutableContext::~IMutableContext() = default;
+    Context::~Context() = default;
+}
+// end catch_context.cpp
+// start catch_debug_console.cpp
 
-    public:
-        ~GeneratorsForTest() {
-            deleteAll( m_generatorsInOrder );
+// start catch_debug_console.h
+
+#include <string>
+
+namespace Catch {
+    void writeToDebugConsole( std::string const& text );
+}
+
+// end catch_debug_console.h
+#ifdef CATCH_PLATFORM_WINDOWS
+
+    namespace Catch {
+        void writeToDebugConsole( std::string const& text ) {
+            ::OutputDebugStringA( text.c_str() );
         }
+    }
+#else
+    namespace Catch {
+        void writeToDebugConsole( std::string const& text ) {
+            // !TBD: Need a version for Mac/ XCode and other IDEs
+            Catch::cout() << text;
+        }
+    }
+#endif // Platform
+// end catch_debug_console.cpp
+// start catch_debugger.cpp
+
+#ifdef CATCH_PLATFORM_MAC
+
+    #include <assert.h>
+    #include <stdbool.h>
+    #include <sys/types.h>
+    #include <unistd.h>
+    #include <sys/sysctl.h>
+
+    namespace Catch {
+
+        // The following function is taken directly from the following technical note:
+        // http://developer.apple.com/library/mac/#qa/qa2004/qa1361.html
+
+        // Returns true if the current process is being debugged (either
+        // running under the debugger or has a debugger attached post facto).
+        bool isDebuggerActive(){
+
+            int                 mib[4];
+            struct kinfo_proc   info;
+            std::size_t         size;
+
+            // Initialize the flags so that, if sysctl fails for some bizarre
+            // reason, we get a predictable result.
+
+            info.kp_proc.p_flag = 0;
+
+            // Initialize mib, which tells sysctl the info we want, in this case
+            // we're looking for information about a specific process ID.
+
+            mib[0] = CTL_KERN;
+            mib[1] = KERN_PROC;
+            mib[2] = KERN_PROC_PID;
+            mib[3] = getpid();
+
+            // Call sysctl.
 
-        IGeneratorInfo& getGeneratorInfo( std::string const& fileInfo, std::size_t size ) {
-            std::map<std::string, IGeneratorInfo*>::const_iterator it = m_generatorsByName.find( fileInfo );
-            if( it == m_generatorsByName.end() ) {
-                IGeneratorInfo* info = new GeneratorInfo( size );
-                m_generatorsByName.insert( std::make_pair( fileInfo, info ) );
-                m_generatorsInOrder.push_back( info );
-                return *info;
+            size = sizeof(info);
+            if( sysctl(mib, sizeof(mib) / sizeof(*mib), &info, &size, nullptr, 0) != 0 ) {
+                Catch::cerr() << "\n** Call to sysctl failed - unable to determine if debugger is active **\n" << std::endl;
+                return false;
             }
-            return *it->second;
+
+            // We're being debugged if the P_TRACED flag is set.
+
+            return ( (info.kp_proc.p_flag & P_TRACED) != 0 );
         }
+    } // namespace Catch
 
-        bool moveNext() {
-            std::vector<IGeneratorInfo*>::const_iterator it = m_generatorsInOrder.begin();
-            std::vector<IGeneratorInfo*>::const_iterator itEnd = m_generatorsInOrder.end();
-            for(; it != itEnd; ++it ) {
-                if( (*it)->moveNext() )
-                    return true;
+#elif defined(CATCH_PLATFORM_LINUX)
+    #include <fstream>
+    #include <string>
+
+    namespace Catch{
+        // The standard POSIX way of detecting a debugger is to attempt to
+        // ptrace() the process, but this needs to be done from a child and not
+        // this process itself to still allow attaching to this process later
+        // if wanted, so is rather heavy. Under Linux we have the PID of the
+        // "debugger" (which doesn't need to be gdb, of course, it could also
+        // be strace, for example) in /proc/$PID/status, so just get it from
+        // there instead.
+        bool isDebuggerActive(){
+            // Libstdc++ has a bug, where std::ifstream sets errno to 0
+            // This way our users can properly assert over errno values
+            ErrnoGuard guard;
+            std::ifstream in("/proc/self/status");
+            for( std::string line; std::getline(in, line); ) {
+                static const int PREFIX_LEN = 11;
+                if( line.compare(0, PREFIX_LEN, "TracerPid:\t") == 0 ) {
+                    // We're traced if the PID is not 0 and no other PID starts
+                    // with 0 digit, so it's enough to check for just a single
+                    // character.
+                    return line.length() > PREFIX_LEN && line[PREFIX_LEN] != '0';
+                }
             }
+
             return false;
         }
+    } // namespace Catch
+#elif defined(_MSC_VER)
+    extern "C" __declspec(dllimport) int __stdcall IsDebuggerPresent();
+    namespace Catch {
+        bool isDebuggerActive() {
+            return IsDebuggerPresent() != 0;
+        }
+    }
+#elif defined(__MINGW32__)
+    extern "C" __declspec(dllimport) int __stdcall IsDebuggerPresent();
+    namespace Catch {
+        bool isDebuggerActive() {
+            return IsDebuggerPresent() != 0;
+        }
+    }
+#else
+    namespace Catch {
+       bool isDebuggerActive() { return false; }
+    }
+#endif // Platform
+// end catch_debugger.cpp
+// start catch_decomposer.cpp
 
-    private:
-        std::map<std::string, IGeneratorInfo*> m_generatorsByName;
-        std::vector<IGeneratorInfo*> m_generatorsInOrder;
-    };
+namespace Catch {
 
-    IGeneratorsForTest* createGeneratorsForTest()
-    {
-        return new GeneratorsForTest();
-    }
+    ITransientExpression::~ITransientExpression() = default;
 
-} // end namespace Catch
+    void formatReconstructedExpression( std::ostream &os, std::string const& lhs, StringRef op, std::string const& rhs ) {
+        if( lhs.size() + rhs.size() < 40 &&
+                lhs.find('\n') == std::string::npos &&
+                rhs.find('\n') == std::string::npos )
+            os << lhs << " " << op << " " << rhs;
+        else
+            os << lhs << "\n" << op << "\n" << rhs;
+    }
+}
+// end catch_decomposer.cpp
+// start catch_errno_guard.cpp
 
-// #included from: catch_assertionresult.hpp
-#define TWOBLUECUBES_CATCH_ASSERTIONRESULT_HPP_INCLUDED
+#include <cerrno>
 
 namespace Catch {
+        ErrnoGuard::ErrnoGuard():m_oldErrno(errno){}
+        ErrnoGuard::~ErrnoGuard() { errno = m_oldErrno; }
+}
+// end catch_errno_guard.cpp
+// start catch_exception_translator_registry.cpp
 
-    AssertionInfo::AssertionInfo(   std::string const& _macroName,
-                                    SourceLineInfo const& _lineInfo,
-                                    std::string const& _capturedExpression,
-                                    ResultDisposition::Flags _resultDisposition )
-    :   macroName( _macroName ),
-        lineInfo( _lineInfo ),
-        capturedExpression( _capturedExpression ),
-        resultDisposition( _resultDisposition )
-    {}
+// start catch_exception_translator_registry.h
 
-    AssertionResult::AssertionResult() {}
+#include <vector>
+#include <string>
+#include <memory>
 
-    AssertionResult::AssertionResult( AssertionInfo const& info, AssertionResultData const& data )
-    :   m_info( info ),
-        m_resultData( data )
-    {}
+namespace Catch {
 
-    AssertionResult::~AssertionResult() {}
+    class ExceptionTranslatorRegistry : public IExceptionTranslatorRegistry {
+    public:
+        ~ExceptionTranslatorRegistry();
+        virtual void registerTranslator( const IExceptionTranslator* translator );
+        virtual std::string translateActiveException() const override;
+        std::string tryTranslators() const;
 
-    // Result was a success
-    bool AssertionResult::succeeded() const {
-        return Catch::isOk( m_resultData.resultType );
-    }
+    private:
+        std::vector<std::unique_ptr<IExceptionTranslator const>> m_translators;
+    };
+}
 
-    // Result was a success, or failure is suppressed
-    bool AssertionResult::isOk() const {
-        return Catch::isOk( m_resultData.resultType ) || shouldSuppressFailure( m_info.resultDisposition );
-    }
+// end catch_exception_translator_registry.h
+#ifdef __OBJC__
+#import "Foundation/Foundation.h"
+#endif
 
-    ResultWas::OfType AssertionResult::getResultType() const {
-        return m_resultData.resultType;
-    }
+namespace Catch {
 
-    bool AssertionResult::hasExpression() const {
-        return !m_info.capturedExpression.empty();
+    ExceptionTranslatorRegistry::~ExceptionTranslatorRegistry() {
     }
 
-    bool AssertionResult::hasMessage() const {
-        return !m_resultData.message.empty();
+    void ExceptionTranslatorRegistry::registerTranslator( const IExceptionTranslator* translator ) {
+        m_translators.push_back( std::unique_ptr<const IExceptionTranslator>( translator ) );
     }
 
-    std::string AssertionResult::getExpression() const {
-        if( isFalseTest( m_info.resultDisposition ) )
-            return "!" + m_info.capturedExpression;
-        else
-            return m_info.capturedExpression;
+    std::string ExceptionTranslatorRegistry::translateActiveException() const {
+        try {
+#ifdef __OBJC__
+            // In Objective-C try objective-c exceptions first
+            @try {
+                return tryTranslators();
+            }
+            @catch (NSException *exception) {
+                return Catch::Detail::stringify( [exception description] );
+            }
+#else
+            return tryTranslators();
+#endif
+        }
+        catch( TestFailureException& ) {
+            std::rethrow_exception(std::current_exception());
+        }
+        catch( std::exception& ex ) {
+            return ex.what();
+        }
+        catch( std::string& msg ) {
+            return msg;
+        }
+        catch( const char* msg ) {
+            return msg;
+        }
+        catch(...) {
+            return "Unknown exception";
+        }
     }
-    std::string AssertionResult::getExpressionInMacro() const {
-        if( m_info.macroName.empty() )
-            return m_info.capturedExpression;
+
+    std::string ExceptionTranslatorRegistry::tryTranslators() const {
+        if( m_translators.empty() )
+            std::rethrow_exception(std::current_exception());
         else
-            return m_info.macroName + "( " + m_info.capturedExpression + " )";
+            return m_translators[0]->translate( m_translators.begin()+1, m_translators.end() );
     }
+}
+// end catch_exception_translator_registry.cpp
+// start catch_fatal_condition.cpp
 
-    bool AssertionResult::hasExpandedExpression() const {
-        return hasExpression() && getExpandedExpression() != getExpression();
-    }
+// start catch_fatal_condition.h
 
-    std::string AssertionResult::getExpandedExpression() const {
-        return m_resultData.reconstructedExpression;
-    }
+#include <string>
 
-    std::string AssertionResult::getMessage() const {
-        return m_resultData.message;
-    }
-    SourceLineInfo AssertionResult::getSourceInfo() const {
-        return m_info.lineInfo;
-    }
+#if defined ( CATCH_PLATFORM_WINDOWS ) /////////////////////////////////////////
 
-    std::string AssertionResult::getTestMacroName() const {
-        return m_info.macroName;
+#  if !defined ( CATCH_CONFIG_WINDOWS_SEH )
+
+namespace Catch {
+    struct FatalConditionHandler {
+        void reset();
+    };
+}
+
+#  else // CATCH_CONFIG_WINDOWS_SEH is defined
+
+namespace Catch {
+
+    struct FatalConditionHandler {
+
+        static LONG CALLBACK handleVectoredException(PEXCEPTION_POINTERS ExceptionInfo);
+        FatalConditionHandler();
+        static void reset();
+        ~FatalConditionHandler();
+
+    private:
+        static bool isSet;
+        static ULONG guaranteeSize;
+        static PVOID exceptionHandlerHandle;
+    };
+
+} // namespace Catch
+
+#  endif // CATCH_CONFIG_WINDOWS_SEH
+
+#else // Not Windows - assumed to be POSIX compatible //////////////////////////
+
+#  if !defined(CATCH_CONFIG_POSIX_SIGNALS)
+
+namespace Catch {
+    struct FatalConditionHandler {
+        void reset();
+    };
+}
+
+#  else // CATCH_CONFIG_POSIX_SIGNALS is defined
+
+#include <signal.h>
+
+namespace Catch {
+
+    struct FatalConditionHandler {
+
+        static bool isSet;
+        static struct sigaction oldSigActions[];// [sizeof(signalDefs) / sizeof(SignalDefs)];
+        static stack_t oldSigStack;
+        static char altStackMem[];
+
+        static void handleSignal( int sig );
+
+        FatalConditionHandler();
+        ~FatalConditionHandler();
+        static void reset();
+    };
+
+} // namespace Catch
+
+#  endif // CATCH_CONFIG_POSIX_SIGNALS
+
+#endif // not Windows
+
+// end catch_fatal_condition.h
+namespace {
+    // Report the error condition
+    void reportFatal( char const * const message ) {
+        Catch::getCurrentContext().getResultCapture()->handleFatalErrorCondition( message );
     }
+}
 
-} // end namespace Catch
+#if defined ( CATCH_PLATFORM_WINDOWS ) /////////////////////////////////////////
 
-// #included from: catch_test_case_info.hpp
-#define TWOBLUECUBES_CATCH_TEST_CASE_INFO_HPP_INCLUDED
+#  if !defined ( CATCH_CONFIG_WINDOWS_SEH )
 
 namespace Catch {
+    void FatalConditionHandler::reset() {}
+}
 
-    inline TestCaseInfo::SpecialProperties parseSpecialTag( std::string const& tag ) {
-        if( startsWith( tag, "." ) ||
-            tag == "hide" ||
-            tag == "!hide" )
-            return TestCaseInfo::IsHidden;
-        else if( tag == "!throws" )
-            return TestCaseInfo::Throws;
-        else if( tag == "!shouldfail" )
-            return TestCaseInfo::ShouldFail;
-        else if( tag == "!mayfail" )
-            return TestCaseInfo::MayFail;
-        else
-            return TestCaseInfo::None;
+#  else // CATCH_CONFIG_WINDOWS_SEH is defined
+
+namespace Catch {
+    struct SignalDefs { DWORD id; const char* name; };
+
+    // There is no 1-1 mapping between signals and windows exceptions.
+    // Windows can easily distinguish between SO and SigSegV,
+    // but SigInt, SigTerm, etc are handled differently.
+    static SignalDefs signalDefs[] = {
+        { EXCEPTION_ILLEGAL_INSTRUCTION,  "SIGILL - Illegal instruction signal" },
+        { EXCEPTION_STACK_OVERFLOW, "SIGSEGV - Stack overflow" },
+        { EXCEPTION_ACCESS_VIOLATION, "SIGSEGV - Segmentation violation signal" },
+        { EXCEPTION_INT_DIVIDE_BY_ZERO, "Divide by zero error" },
+    };
+
+    LONG CALLBACK FatalConditionHandler::handleVectoredException(PEXCEPTION_POINTERS ExceptionInfo) {
+        for (auto const& def : signalDefs) {
+            if (ExceptionInfo->ExceptionRecord->ExceptionCode == def.id) {
+                reportFatal(def.name);
+            }
+        }
+        // If its not an exception we care about, pass it along.
+        // This stops us from eating debugger breaks etc.
+        return EXCEPTION_CONTINUE_SEARCH;
     }
-    inline bool isReservedTag( std::string const& tag ) {
-        return parseSpecialTag( tag ) == TestCaseInfo::None && tag.size() > 0 && !isalnum( tag[0] );
+
+    FatalConditionHandler::FatalConditionHandler() {
+        isSet = true;
+        // 32k seems enough for Catch to handle stack overflow,
+        // but the value was found experimentally, so there is no strong guarantee
+        guaranteeSize = 32 * 1024;
+        exceptionHandlerHandle = nullptr;
+        // Register as first handler in current chain
+        exceptionHandlerHandle = AddVectoredExceptionHandler(1, handleVectoredException);
+        // Pass in guarantee size to be filled
+        SetThreadStackGuarantee(&guaranteeSize);
     }
-    inline void enforceNotReservedTag( std::string const& tag, SourceLineInfo const& _lineInfo ) {
-        if( isReservedTag( tag ) ) {
-            {
-                Colour colourGuard( Colour::Red );
-                Catch::cerr()
-                    << "Tag name [" << tag << "] not allowed.\n"
-                    << "Tag names starting with non alpha-numeric characters are reserved\n";
-            }
-            {
-                Colour colourGuard( Colour::FileName );
-                Catch::cerr() << _lineInfo << std::endl;
-            }
-            exit(1);
+
+    void FatalConditionHandler::reset() {
+        if (isSet) {
+            // Unregister handler and restore the old guarantee
+            RemoveVectoredExceptionHandler(exceptionHandlerHandle);
+            SetThreadStackGuarantee(&guaranteeSize);
+            exceptionHandlerHandle = nullptr;
+            isSet = false;
         }
     }
 
-    TestCase makeTestCase(  ITestCase* _testCase,
-                            std::string const& _className,
-                            std::string const& _name,
-                            std::string const& _descOrTags,
-                            SourceLineInfo const& _lineInfo )
-    {
-        bool isHidden( startsWith( _name, "./" ) ); // Legacy support
+    FatalConditionHandler::~FatalConditionHandler() {
+        reset();
+    }
 
-        // Parse out tags
-        std::set<std::string> tags;
-        std::string desc, tag;
-        bool inTag = false;
-        for( std::size_t i = 0; i < _descOrTags.size(); ++i ) {
-            char c = _descOrTags[i];
-            if( !inTag ) {
-                if( c == '[' )
-                    inTag = true;
-                else
-                    desc += c;
-            }
-            else {
-                if( c == ']' ) {
-                    TestCaseInfo::SpecialProperties prop = parseSpecialTag( tag );
-                    if( prop == TestCaseInfo::IsHidden )
-                        isHidden = true;
-                    else if( prop == TestCaseInfo::None )
-                        enforceNotReservedTag( tag, _lineInfo );
+bool FatalConditionHandler::isSet = false;
+ULONG FatalConditionHandler::guaranteeSize = 0;
+PVOID FatalConditionHandler::exceptionHandlerHandle = nullptr;
 
-                    tags.insert( tag );
-                    tag.clear();
-                    inTag = false;
-                }
-                else
-                    tag += c;
+} // namespace Catch
+
+#  endif // CATCH_CONFIG_WINDOWS_SEH
+
+#else // Not Windows - assumed to be POSIX compatible //////////////////////////
+
+#  if !defined(CATCH_CONFIG_POSIX_SIGNALS)
+
+namespace Catch {
+    void FatalConditionHandler::reset() {}
+}
+
+#  else // CATCH_CONFIG_POSIX_SIGNALS is defined
+
+#include <signal.h>
+
+namespace Catch {
+
+    struct SignalDefs {
+        int id;
+        const char* name;
+    };
+    static SignalDefs signalDefs[] = {
+        { SIGINT,  "SIGINT - Terminal interrupt signal" },
+        { SIGILL,  "SIGILL - Illegal instruction signal" },
+        { SIGFPE,  "SIGFPE - Floating point error signal" },
+        { SIGSEGV, "SIGSEGV - Segmentation violation signal" },
+        { SIGTERM, "SIGTERM - Termination request signal" },
+        { SIGABRT, "SIGABRT - Abort (abnormal termination) signal" }
+    };
+
+    void FatalConditionHandler::handleSignal( int sig ) {
+        char const * name = "<unknown signal>";
+        for (auto const& def : signalDefs) {
+            if (sig == def.id) {
+                name = def.name;
+                break;
             }
         }
-        if( isHidden ) {
-            tags.insert( "hide" );
-            tags.insert( "." );
-        }
+        reset();
+        reportFatal(name);
+        raise( sig );
+    }
 
-        TestCaseInfo info( _name, _className, desc, tags, _lineInfo );
-        return TestCase( _testCase, info );
+    FatalConditionHandler::FatalConditionHandler() {
+        isSet = true;
+        stack_t sigStack;
+        sigStack.ss_sp = altStackMem;
+        sigStack.ss_size = SIGSTKSZ;
+        sigStack.ss_flags = 0;
+        sigaltstack(&sigStack, &oldSigStack);
+        struct sigaction sa = { };
+
+        sa.sa_handler = handleSignal;
+        sa.sa_flags = SA_ONSTACK;
+        for (std::size_t i = 0; i < sizeof(signalDefs)/sizeof(SignalDefs); ++i) {
+            sigaction(signalDefs[i].id, &sa, &oldSigActions[i]);
+        }
     }
 
-    void setTags( TestCaseInfo& testCaseInfo, std::set<std::string> const& tags )
-    {
-        testCaseInfo.tags = tags;
-        testCaseInfo.lcaseTags.clear();
+    FatalConditionHandler::~FatalConditionHandler() {
+        reset();
+    }
 
-        std::ostringstream oss;
-        for( std::set<std::string>::const_iterator it = tags.begin(), itEnd = tags.end(); it != itEnd; ++it ) {
-            oss << "[" << *it << "]";
-            std::string lcaseTag = toLower( *it );
-            testCaseInfo.properties = static_cast<TestCaseInfo::SpecialProperties>( testCaseInfo.properties | parseSpecialTag( lcaseTag ) );
-            testCaseInfo.lcaseTags.insert( lcaseTag );
+    void FatalConditionHandler::reset() {
+        if( isSet ) {
+            // Set signals back to previous values -- hopefully nobody overwrote them in the meantime
+            for( std::size_t i = 0; i < sizeof(signalDefs)/sizeof(SignalDefs); ++i ) {
+                sigaction(signalDefs[i].id, &oldSigActions[i], nullptr);
+            }
+            // Return the old stack
+            sigaltstack(&oldSigStack, nullptr);
+            isSet = false;
         }
-        testCaseInfo.tagsAsString = oss.str();
     }
 
-    TestCaseInfo::TestCaseInfo( std::string const& _name,
-                                std::string const& _className,
-                                std::string const& _description,
-                                std::set<std::string> const& _tags,
-                                SourceLineInfo const& _lineInfo )
+    bool FatalConditionHandler::isSet = false;
+    struct sigaction FatalConditionHandler::oldSigActions[sizeof(signalDefs)/sizeof(SignalDefs)] = {};
+    stack_t FatalConditionHandler::oldSigStack = {};
+    char FatalConditionHandler::altStackMem[SIGSTKSZ] = {};
+
+} // namespace Catch
+
+#  endif // CATCH_CONFIG_POSIX_SIGNALS
+
+#endif // not Windows
+// end catch_fatal_condition.cpp
+// start catch_interfaces_capture.cpp
+
+namespace Catch {
+    IResultCapture::~IResultCapture() = default;
+}
+// end catch_interfaces_capture.cpp
+// start catch_interfaces_config.cpp
+
+namespace Catch {
+    IConfig::~IConfig() = default;
+}
+// end catch_interfaces_config.cpp
+// start catch_interfaces_exception.cpp
+
+namespace Catch {
+    IExceptionTranslator::~IExceptionTranslator() = default;
+    IExceptionTranslatorRegistry::~IExceptionTranslatorRegistry() = default;
+}
+// end catch_interfaces_exception.cpp
+// start catch_interfaces_registry_hub.cpp
+
+namespace Catch {
+    IRegistryHub::~IRegistryHub() = default;
+    IMutableRegistryHub::~IMutableRegistryHub() = default;
+}
+// end catch_interfaces_registry_hub.cpp
+// start catch_interfaces_reporter.cpp
+
+// start catch_reporter_multi.h
+
+namespace Catch {
+
+    class MultipleReporters : public IStreamingReporter {
+        using Reporters = std::vector<IStreamingReporterPtr>;
+        Reporters m_reporters;
+
+    public:
+        void add( IStreamingReporterPtr&& reporter );
+
+    public: // IStreamingReporter
+
+        ReporterPreferences getPreferences() const override;
+
+        void noMatchingTestCases( std::string const& spec ) override;
+
+        static std::set<Verbosity> getSupportedVerbosities();
+
+        void benchmarkStarting( BenchmarkInfo const& benchmarkInfo ) override;
+        void benchmarkEnded( BenchmarkStats const& benchmarkStats ) override;
+
+        void testRunStarting( TestRunInfo const& testRunInfo ) override;
+        void testGroupStarting( GroupInfo const& groupInfo ) override;
+        void testCaseStarting( TestCaseInfo const& testInfo ) override;
+        void sectionStarting( SectionInfo const& sectionInfo ) override;
+        void assertionStarting( AssertionInfo const& assertionInfo ) override;
+
+        // The return value indicates if the messages buffer should be cleared:
+        bool assertionEnded( AssertionStats const& assertionStats ) override;
+        void sectionEnded( SectionStats const& sectionStats ) override;
+        void testCaseEnded( TestCaseStats const& testCaseStats ) override;
+        void testGroupEnded( TestGroupStats const& testGroupStats ) override;
+        void testRunEnded( TestRunStats const& testRunStats ) override;
+
+        void skipTest( TestCaseInfo const& testInfo ) override;
+        bool isMulti() const override;
+
+    };
+
+} // end namespace Catch
+
+// end catch_reporter_multi.h
+namespace Catch {
+
+    ReporterConfig::ReporterConfig( IConfigPtr const& _fullConfig )
+    :   m_stream( &_fullConfig->stream() ), m_fullConfig( _fullConfig ) {}
+
+    ReporterConfig::ReporterConfig( IConfigPtr const& _fullConfig, std::ostream& _stream )
+    :   m_stream( &_stream ), m_fullConfig( _fullConfig ) {}
+
+    std::ostream& ReporterConfig::stream() const { return *m_stream; }
+    IConfigPtr ReporterConfig::fullConfig() const { return m_fullConfig; }
+
+    TestRunInfo::TestRunInfo( std::string const& _name ) : name( _name ) {}
+
+    GroupInfo::GroupInfo(  std::string const& _name,
+                           std::size_t _groupIndex,
+                           std::size_t _groupsCount )
     :   name( _name ),
-        className( _className ),
-        description( _description ),
-        lineInfo( _lineInfo ),
-        properties( None )
+        groupIndex( _groupIndex ),
+        groupsCounts( _groupsCount )
+    {}
+
+     AssertionStats::AssertionStats( AssertionResult const& _assertionResult,
+                                     std::vector<MessageInfo> const& _infoMessages,
+                                     Totals const& _totals )
+    :   assertionResult( _assertionResult ),
+        infoMessages( _infoMessages ),
+        totals( _totals )
     {
-        setTags( *this, _tags );
+        assertionResult.m_resultData.lazyExpression.m_transientExpression = _assertionResult.m_resultData.lazyExpression.m_transientExpression;
+
+        if( assertionResult.hasMessage() ) {
+            // Copy message into messages list.
+            // !TBD This should have been done earlier, somewhere
+            MessageBuilder builder( assertionResult.getTestMacroName(), assertionResult.getSourceInfo(), assertionResult.getResultType() );
+            builder << assertionResult.getMessage();
+            builder.m_info.message = builder.m_stream.str();
+
+            infoMessages.push_back( builder.m_info );
+        }
     }
 
-    TestCaseInfo::TestCaseInfo( TestCaseInfo const& other )
-    :   name( other.name ),
-        className( other.className ),
-        description( other.description ),
-        tags( other.tags ),
-        lcaseTags( other.lcaseTags ),
-        tagsAsString( other.tagsAsString ),
-        lineInfo( other.lineInfo ),
-        properties( other.properties )
+     AssertionStats::~AssertionStats() = default;
+
+    SectionStats::SectionStats(  SectionInfo const& _sectionInfo,
+                                 Counts const& _assertions,
+                                 double _durationInSeconds,
+                                 bool _missingAssertions )
+    :   sectionInfo( _sectionInfo ),
+        assertions( _assertions ),
+        durationInSeconds( _durationInSeconds ),
+        missingAssertions( _missingAssertions )
     {}
 
-    bool TestCaseInfo::isHidden() const {
-        return ( properties & IsHidden ) != 0;
-    }
-    bool TestCaseInfo::throws() const {
-        return ( properties & Throws ) != 0;
-    }
-    bool TestCaseInfo::okToFail() const {
-        return ( properties & (ShouldFail | MayFail ) ) != 0;
-    }
-    bool TestCaseInfo::expectedToFail() const {
-        return ( properties & (ShouldFail ) ) != 0;
-    }
+    SectionStats::~SectionStats() = default;
+
+    TestCaseStats::TestCaseStats(  TestCaseInfo const& _testInfo,
+                                   Totals const& _totals,
+                                   std::string const& _stdOut,
+                                   std::string const& _stdErr,
+                                   bool _aborting )
+    : testInfo( _testInfo ),
+        totals( _totals ),
+        stdOut( _stdOut ),
+        stdErr( _stdErr ),
+        aborting( _aborting )
+    {}
 
-    TestCase::TestCase( ITestCase* testCase, TestCaseInfo const& info ) : TestCaseInfo( info ), test( testCase ) {}
+    TestCaseStats::~TestCaseStats() = default;
 
-    TestCase::TestCase( TestCase const& other )
-    :   TestCaseInfo( other ),
-        test( other.test )
+    TestGroupStats::TestGroupStats( GroupInfo const& _groupInfo,
+                                    Totals const& _totals,
+                                    bool _aborting )
+    :   groupInfo( _groupInfo ),
+        totals( _totals ),
+        aborting( _aborting )
     {}
 
-    TestCase TestCase::withName( std::string const& _newName ) const {
-        TestCase other( *this );
-        other.name = _newName;
-        return other;
+    TestGroupStats::TestGroupStats( GroupInfo const& _groupInfo )
+    :   groupInfo( _groupInfo ),
+        aborting( false )
+    {}
+
+    TestGroupStats::~TestGroupStats() = default;
+
+    TestRunStats::TestRunStats(   TestRunInfo const& _runInfo,
+                    Totals const& _totals,
+                    bool _aborting )
+    :   runInfo( _runInfo ),
+        totals( _totals ),
+        aborting( _aborting )
+    {}
+
+    TestRunStats::~TestRunStats() = default;
+
+    void IStreamingReporter::fatalErrorEncountered( StringRef ) {}
+    bool IStreamingReporter::isMulti() const { return false; }
+
+    IReporterFactory::~IReporterFactory() = default;
+    IReporterRegistry::~IReporterRegistry() = default;
+
+    void addReporter( IStreamingReporterPtr& existingReporter, IStreamingReporterPtr&& additionalReporter ) {
+
+        if( !existingReporter ) {
+            existingReporter = std::move( additionalReporter );
+            return;
+        }
+
+        MultipleReporters* multi = nullptr;
+
+        if( existingReporter->isMulti() ) {
+            multi = static_cast<MultipleReporters*>( existingReporter.get() );
+        }
+        else {
+            auto newMulti = std::unique_ptr<MultipleReporters>( new MultipleReporters );
+            newMulti->add( std::move( existingReporter ) );
+            multi = newMulti.get();
+            existingReporter = std::move( newMulti );
+        }
+        multi->add( std::move( additionalReporter ) );
+    }
+
+} // end namespace Catch
+// end catch_interfaces_reporter.cpp
+// start catch_interfaces_runner.cpp
+
+namespace Catch {
+    IRunner::~IRunner() = default;
+}
+// end catch_interfaces_runner.cpp
+// start catch_interfaces_testcase.cpp
+
+namespace Catch {
+    ITestInvoker::~ITestInvoker() = default;
+    ITestCaseRegistry::~ITestCaseRegistry() = default;
+}
+// end catch_interfaces_testcase.cpp
+// start catch_leak_detector.cpp
+
+namespace Catch {
+
+#ifdef CATCH_CONFIG_WINDOWS_CRTDBG
+#include <crtdbg.h>
+
+	LeakDetector::LeakDetector() {
+		int flag = _CrtSetDbgFlag(_CRTDBG_REPORT_FLAG);
+		flag |= _CRTDBG_LEAK_CHECK_DF;
+		flag |= _CRTDBG_ALLOC_MEM_DF;
+		_CrtSetDbgFlag(flag);
+		_CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE | _CRTDBG_MODE_DEBUG);
+		_CrtSetReportFile(_CRT_WARN, _CRTDBG_FILE_STDERR);
+		// Change this to leaking allocation's number to break there
+		_CrtSetBreakAlloc(-1);
+	}
+
+#else
+
+    LeakDetector::LeakDetector(){}
+
+#endif
+
+}
+// end catch_leak_detector.cpp
+// start catch_list.cpp
+
+// start catch_list.h
+
+#include <set>
+
+namespace Catch {
+
+    std::size_t listTests( Config const& config );
+
+    std::size_t listTestsNamesOnly( Config const& config );
+
+    struct TagInfo {
+        void add( std::string const& spelling );
+        std::string all() const;
+
+        std::set<std::string> spellings;
+        std::size_t count = 0;
+    };
+
+    std::size_t listTags( Config const& config );
+
+    std::size_t listReporters( Config const& /*config*/ );
+
+    Option<std::size_t> list( Config const& config );
+
+} // end namespace Catch
+
+// end catch_list.h
+// start catch_text.h
+
+namespace Catch {
+    using namespace clara::TextFlow;
+}
+
+// end catch_text.h
+#include <limits>
+#include <algorithm>
+#include <iomanip>
+
+namespace Catch {
+
+    std::size_t listTests( Config const& config ) {
+        TestSpec testSpec = config.testSpec();
+        if( config.testSpec().hasFilters() )
+            Catch::cout() << "Matching test cases:\n";
+        else {
+            Catch::cout() << "All available test cases:\n";
+            testSpec = TestSpecParser( ITagAliasRegistry::get() ).parse( "*" ).testSpec();
+        }
+
+        auto matchedTestCases = filterTests( getAllTestCasesSorted( config ), testSpec, config );
+        for( auto const& testCaseInfo : matchedTestCases ) {
+            Colour::Code colour = testCaseInfo.isHidden()
+                ? Colour::SecondaryText
+                : Colour::None;
+            Colour colourGuard( colour );
+
+            Catch::cout() << Column( testCaseInfo.name ).initialIndent( 2 ).indent( 4 ) << "\n";
+            if( config.verbosity() >= Verbosity::High ) {
+                Catch::cout() << Column( Catch::Detail::stringify( testCaseInfo.lineInfo ) ).indent(4) << std::endl;
+                std::string description = testCaseInfo.description;
+                if( description.empty() )
+                    description = "(NO DESCRIPTION)";
+                Catch::cout() << Column( description ).indent(4) << std::endl;
+            }
+            if( !testCaseInfo.tags.empty() )
+                Catch::cout() << Column( testCaseInfo.tagsAsString() ).indent( 6 ) << "\n";
+        }
+
+        if( !config.testSpec().hasFilters() )
+            Catch::cout() << pluralise( matchedTestCases.size(), "test case" ) << '\n' << std::endl;
+        else
+            Catch::cout() << pluralise( matchedTestCases.size(), "matching test case" ) << '\n' << std::endl;
+        return matchedTestCases.size();
     }
 
-    void TestCase::swap( TestCase& other ) {
-        test.swap( other.test );
-        name.swap( other.name );
-        className.swap( other.className );
-        description.swap( other.description );
-        tags.swap( other.tags );
-        lcaseTags.swap( other.lcaseTags );
-        tagsAsString.swap( other.tagsAsString );
-        std::swap( TestCaseInfo::properties, static_cast<TestCaseInfo&>( other ).properties );
-        std::swap( lineInfo, other.lineInfo );
+    std::size_t listTestsNamesOnly( Config const& config ) {
+        TestSpec testSpec = config.testSpec();
+        if( !config.testSpec().hasFilters() )
+            testSpec = TestSpecParser( ITagAliasRegistry::get() ).parse( "*" ).testSpec();
+        std::size_t matchedTests = 0;
+        std::vector<TestCase> matchedTestCases = filterTests( getAllTestCasesSorted( config ), testSpec, config );
+        for( auto const& testCaseInfo : matchedTestCases ) {
+            matchedTests++;
+            if( startsWith( testCaseInfo.name, '#' ) )
+               Catch::cout() << '"' << testCaseInfo.name << '"';
+            else
+               Catch::cout() << testCaseInfo.name;
+            if ( config.verbosity() >= Verbosity::High )
+                Catch::cout() << "\t@" << testCaseInfo.lineInfo;
+            Catch::cout() << std::endl;
+        }
+        return matchedTests;
     }
 
-    void TestCase::invoke() const {
-        test->invoke();
+    void TagInfo::add( std::string const& spelling ) {
+        ++count;
+        spellings.insert( spelling );
     }
 
-    bool TestCase::operator == ( TestCase const& other ) const {
-        return  test.get() == other.test.get() &&
-                name == other.name &&
-                className == other.className;
+    std::string TagInfo::all() const {
+        std::string out;
+        for( auto const& spelling : spellings )
+            out += "[" + spelling + "]";
+        return out;
     }
 
-    bool TestCase::operator < ( TestCase const& other ) const {
-        return name < other.name;
+    std::size_t listTags( Config const& config ) {
+        TestSpec testSpec = config.testSpec();
+        if( config.testSpec().hasFilters() )
+            Catch::cout() << "Tags for matching test cases:\n";
+        else {
+            Catch::cout() << "All available tags:\n";
+            testSpec = TestSpecParser( ITagAliasRegistry::get() ).parse( "*" ).testSpec();
+        }
+
+        std::map<std::string, TagInfo> tagCounts;
+
+        std::vector<TestCase> matchedTestCases = filterTests( getAllTestCasesSorted( config ), testSpec, config );
+        for( auto const& testCase : matchedTestCases ) {
+            for( auto const& tagName : testCase.getTestCaseInfo().tags ) {
+                std::string lcaseTagName = toLower( tagName );
+                auto countIt = tagCounts.find( lcaseTagName );
+                if( countIt == tagCounts.end() )
+                    countIt = tagCounts.insert( std::make_pair( lcaseTagName, TagInfo() ) ).first;
+                countIt->second.add( tagName );
+            }
+        }
+
+        for( auto const& tagCount : tagCounts ) {
+            std::ostringstream oss;
+            oss << "  " << std::setw(2) << tagCount.second.count << "  ";
+            auto wrapper = Column( tagCount.second.all() )
+                                                    .initialIndent( 0 )
+                                                    .indent( oss.str().size() )
+                                                    .width( CATCH_CONFIG_CONSOLE_WIDTH-10 );
+            Catch::cout() << oss.str() << wrapper << '\n';
+        }
+        Catch::cout() << pluralise( tagCounts.size(), "tag" ) << '\n' << std::endl;
+        return tagCounts.size();
     }
-    TestCase& TestCase::operator = ( TestCase const& other ) {
-        TestCase temp( other );
-        swap( temp );
-        return *this;
+
+    std::size_t listReporters( Config const& /*config*/ ) {
+        Catch::cout() << "Available reporters:\n";
+        IReporterRegistry::FactoryMap const& factories = getRegistryHub().getReporterRegistry().getFactories();
+        std::size_t maxNameLen = 0;
+        for( auto const& factoryKvp : factories )
+            maxNameLen = (std::max)( maxNameLen, factoryKvp.first.size() );
+
+        for( auto const& factoryKvp : factories ) {
+            Catch::cout()
+                    << Column( factoryKvp.first + ":" )
+                            .indent(2)
+                            .width( 5+maxNameLen )
+                    +  Column( factoryKvp.second->getDescription() )
+                            .initialIndent(0)
+                            .indent(2)
+                            .width( CATCH_CONFIG_CONSOLE_WIDTH - maxNameLen-8 )
+                    << "\n";
+        }
+        Catch::cout() << std::endl;
+        return factories.size();
     }
 
-    TestCaseInfo const& TestCase::getTestCaseInfo() const
-    {
-        return *this;
+    Option<std::size_t> list( Config const& config ) {
+        Option<std::size_t> listedCount;
+        if( config.listTests() )
+            listedCount = listedCount.valueOr(0) + listTests( config );
+        if( config.listTestNamesOnly() )
+            listedCount = listedCount.valueOr(0) + listTestsNamesOnly( config );
+        if( config.listTags() )
+            listedCount = listedCount.valueOr(0) + listTags( config );
+        if( config.listReporters() )
+            listedCount = listedCount.valueOr(0) + listReporters( config );
+        return listedCount;
     }
 
 } // end namespace Catch
+// end catch_list.cpp
+// start catch_matchers.cpp
+
+namespace Catch {
+namespace Matchers {
+    namespace Impl {
 
-// #included from: catch_version.hpp
-#define TWOBLUECUBES_CATCH_VERSION_HPP_INCLUDED
+        std::string MatcherUntypedBase::toString() const {
+            if( m_cachedToString.empty() )
+                m_cachedToString = describe();
+            return m_cachedToString;
+        }
+
+        MatcherUntypedBase::~MatcherUntypedBase() = default;
+
+    } // namespace Impl
+} // namespace Matchers
+
+using namespace Matchers;
+using Matchers::Impl::MatcherBase;
+
+} // namespace Catch
+// end catch_matchers.cpp
+// start catch_matchers_string.cpp
 
 namespace Catch {
+namespace Matchers {
 
-    Version::Version
-        (   unsigned int _majorVersion,
-            unsigned int _minorVersion,
-            unsigned int _patchNumber,
-            std::string const& _branchName,
-            unsigned int _buildNumber )
-    :   majorVersion( _majorVersion ),
-        minorVersion( _minorVersion ),
-        patchNumber( _patchNumber ),
-        branchName( _branchName ),
-        buildNumber( _buildNumber )
-    {}
+    namespace StdString {
 
-    std::ostream& operator << ( std::ostream& os, Version const& version ) {
-        os  << version.majorVersion << "."
-            << version.minorVersion << "."
-            << version.patchNumber;
+        CasedString::CasedString( std::string const& str, CaseSensitive::Choice caseSensitivity )
+        :   m_caseSensitivity( caseSensitivity ),
+            m_str( adjustString( str ) )
+        {}
+        std::string CasedString::adjustString( std::string const& str ) const {
+            return m_caseSensitivity == CaseSensitive::No
+                   ? toLower( str )
+                   : str;
+        }
+        std::string CasedString::caseSensitivitySuffix() const {
+            return m_caseSensitivity == CaseSensitive::No
+                   ? " (case insensitive)"
+                   : std::string();
+        }
 
-        if( !version.branchName.empty() ) {
-            os  << "-" << version.branchName
-                << "." << version.buildNumber;
+        StringMatcherBase::StringMatcherBase( std::string const& operation, CasedString const& comparator )
+        : m_comparator( comparator ),
+          m_operation( operation ) {
         }
-        return os;
-    }
 
-    Version libraryVersion( 1, 5, 1, "", 0 );
+        std::string StringMatcherBase::describe() const {
+            std::string description;
+            description.reserve(5 + m_operation.size() + m_comparator.m_str.size() +
+                                        m_comparator.caseSensitivitySuffix().size());
+            description += m_operation;
+            description += ": \"";
+            description += m_comparator.m_str;
+            description += "\"";
+            description += m_comparator.caseSensitivitySuffix();
+            return description;
+        }
 
-}
+        EqualsMatcher::EqualsMatcher( CasedString const& comparator ) : StringMatcherBase( "equals", comparator ) {}
+
+        bool EqualsMatcher::match( std::string const& source ) const {
+            return m_comparator.adjustString( source ) == m_comparator.m_str;
+        }
+
+        ContainsMatcher::ContainsMatcher( CasedString const& comparator ) : StringMatcherBase( "contains", comparator ) {}
 
-// #included from: catch_message.hpp
-#define TWOBLUECUBES_CATCH_MESSAGE_HPP_INCLUDED
+        bool ContainsMatcher::match( std::string const& source ) const {
+            return contains( m_comparator.adjustString( source ), m_comparator.m_str );
+        }
+
+        StartsWithMatcher::StartsWithMatcher( CasedString const& comparator ) : StringMatcherBase( "starts with", comparator ) {}
+
+        bool StartsWithMatcher::match( std::string const& source ) const {
+            return startsWith( m_comparator.adjustString( source ), m_comparator.m_str );
+        }
+
+        EndsWithMatcher::EndsWithMatcher( CasedString const& comparator ) : StringMatcherBase( "ends with", comparator ) {}
+
+        bool EndsWithMatcher::match( std::string const& source ) const {
+            return endsWith( m_comparator.adjustString( source ), m_comparator.m_str );
+        }
+
+    } // namespace StdString
+
+    StdString::EqualsMatcher Equals( std::string const& str, CaseSensitive::Choice caseSensitivity ) {
+        return StdString::EqualsMatcher( StdString::CasedString( str, caseSensitivity) );
+    }
+    StdString::ContainsMatcher Contains( std::string const& str, CaseSensitive::Choice caseSensitivity ) {
+        return StdString::ContainsMatcher( StdString::CasedString( str, caseSensitivity) );
+    }
+    StdString::EndsWithMatcher EndsWith( std::string const& str, CaseSensitive::Choice caseSensitivity ) {
+        return StdString::EndsWithMatcher( StdString::CasedString( str, caseSensitivity) );
+    }
+    StdString::StartsWithMatcher StartsWith( std::string const& str, CaseSensitive::Choice caseSensitivity ) {
+        return StdString::StartsWithMatcher( StdString::CasedString( str, caseSensitivity) );
+    }
+
+} // namespace Matchers
+} // namespace Catch
+// end catch_matchers_string.cpp
+// start catch_message.cpp
 
 namespace Catch {
 
@@ -7563,318 +7165,818 @@ namespace Catch {
         sequence( ++globalCount )
     {}
 
+    bool MessageInfo::operator==( MessageInfo const& other ) const {
+        return sequence == other.sequence;
+    }
+
+    bool MessageInfo::operator<( MessageInfo const& other ) const {
+        return sequence < other.sequence;
+    }
+
     // This may need protecting if threading support is added
     unsigned int MessageInfo::globalCount = 0;
 
     ////////////////////////////////////////////////////////////////////////////
 
+    Catch::MessageBuilder::MessageBuilder( std::string const& macroName,
+                                           SourceLineInfo const& lineInfo,
+                                           ResultWas::OfType type )
+        :m_info(macroName, lineInfo, type) {}
+
+    ////////////////////////////////////////////////////////////////////////////
+
     ScopedMessage::ScopedMessage( MessageBuilder const& builder )
     : m_info( builder.m_info )
     {
         m_info.message = builder.m_stream.str();
         getResultCapture().pushScopedMessage( m_info );
     }
-    ScopedMessage::ScopedMessage( ScopedMessage const& other )
-    : m_info( other.m_info )
-    {}
 
     ScopedMessage::~ScopedMessage() {
-        getResultCapture().popScopedMessage( m_info );
+        if ( !std::uncaught_exception() ){
+            getResultCapture().popScopedMessage(m_info);
+        }
     }
 
 } // end namespace Catch
+// end catch_message.cpp
+// start catch_random_number_generator.cpp
 
-// #included from: catch_legacy_reporter_adapter.hpp
-#define TWOBLUECUBES_CATCH_LEGACY_REPORTER_ADAPTER_HPP_INCLUDED
+// start catch_random_number_generator.h
 
-// #included from: catch_legacy_reporter_adapter.h
-#define TWOBLUECUBES_CATCH_LEGACY_REPORTER_ADAPTER_H_INCLUDED
+#include <algorithm>
+
+namespace Catch {
+
+    struct IConfig;
+
+    void seedRng( IConfig const& config );
+
+    unsigned int rngSeed();
+
+    struct RandomNumberGenerator {
+        using result_type = unsigned int;
+
+        static constexpr result_type (min)() { return 0; }
+        static constexpr result_type (max)() { return 1000000; }
+
+        result_type operator()( result_type n ) const;
+        result_type operator()() const;
+
+        template<typename V>
+        static void shuffle( V& vector ) {
+            RandomNumberGenerator rng;
+            std::shuffle( vector.begin(), vector.end(), rng );
+        }
+    };
+
+}
+
+// end catch_random_number_generator.h
+#include <cstdlib>
+
+namespace Catch {
+
+    void seedRng( IConfig const& config ) {
+        if( config.rngSeed() != 0 )
+            std::srand( config.rngSeed() );
+    }
+    unsigned int rngSeed() {
+        return getCurrentContext().getConfig()->rngSeed();
+    }
+
+    RandomNumberGenerator::result_type RandomNumberGenerator::operator()( result_type n ) const {
+        return std::rand() % n;
+    }
+    RandomNumberGenerator::result_type RandomNumberGenerator::operator()() const {
+        return std::rand() % (max)();
+    }
+
+}
+// end catch_random_number_generator.cpp
+// start catch_registry_hub.cpp
+
+// start catch_test_case_registry_impl.h
+
+#include <vector>
+#include <set>
+#include <algorithm>
+#include <ios>
+
+namespace Catch {
+
+    class TestCase;
+    struct IConfig;
+
+    std::vector<TestCase> sortTests( IConfig const& config, std::vector<TestCase> const& unsortedTestCases );
+    bool matchTest( TestCase const& testCase, TestSpec const& testSpec, IConfig const& config );
+
+    void enforceNoDuplicateTestCases( std::vector<TestCase> const& functions );
+
+    std::vector<TestCase> filterTests( std::vector<TestCase> const& testCases, TestSpec const& testSpec, IConfig const& config );
+    std::vector<TestCase> const& getAllTestCasesSorted( IConfig const& config );
+
+    class TestRegistry : public ITestCaseRegistry {
+    public:
+        virtual ~TestRegistry() = default;
+
+        virtual void registerTest( TestCase const& testCase );
+
+        std::vector<TestCase> const& getAllTests() const override;
+        std::vector<TestCase> const& getAllTestsSorted( IConfig const& config ) const override;
+
+    private:
+        std::vector<TestCase> m_functions;
+        mutable RunTests::InWhatOrder m_currentSortOrder = RunTests::InDeclarationOrder;
+        mutable std::vector<TestCase> m_sortedFunctions;
+        std::size_t m_unnamedCount = 0;
+        std::ios_base::Init m_ostreamInit; // Forces cout/ cerr to be initialised
+    };
+
+    ///////////////////////////////////////////////////////////////////////////
+
+    class TestInvokerAsFunction : public ITestInvoker {
+        void(*m_testAsFunction)();
+    public:
+        TestInvokerAsFunction( void(*testAsFunction)() ) noexcept;
+
+        void invoke() const override;
+    };
+
+    std::string extractClassName( std::string const& classOrQualifiedMethodName );
+
+    ///////////////////////////////////////////////////////////////////////////
+
+} // end namespace Catch
+
+// end catch_test_case_registry_impl.h
+// start catch_reporter_registry.h
+
+#include <map>
+
+namespace Catch {
+
+    class ReporterRegistry : public IReporterRegistry {
 
-namespace Catch
-{
-    // Deprecated
-    struct IReporter : IShared {
-        virtual ~IReporter();
-
-        virtual bool shouldRedirectStdout() const = 0;
-
-        virtual void StartTesting() = 0;
-        virtual void EndTesting( Totals const& totals ) = 0;
-        virtual void StartGroup( std::string const& groupName ) = 0;
-        virtual void EndGroup( std::string const& groupName, Totals const& totals ) = 0;
-        virtual void StartTestCase( TestCaseInfo const& testInfo ) = 0;
-        virtual void EndTestCase( TestCaseInfo const& testInfo, Totals const& totals, std::string const& stdOut, std::string const& stdErr ) = 0;
-        virtual void StartSection( std::string const& sectionName, std::string const& description ) = 0;
-        virtual void EndSection( std::string const& sectionName, Counts const& assertions ) = 0;
-        virtual void NoAssertionsInSection( std::string const& sectionName ) = 0;
-        virtual void NoAssertionsInTestCase( std::string const& testName ) = 0;
-        virtual void Aborted() = 0;
-        virtual void Result( AssertionResult const& result ) = 0;
-    };
-
-    class LegacyReporterAdapter : public SharedImpl<IStreamingReporter>
-    {
     public:
-        LegacyReporterAdapter( Ptr<IReporter> const& legacyReporter );
-        virtual ~LegacyReporterAdapter();
-
-        virtual ReporterPreferences getPreferences() const;
-        virtual void noMatchingTestCases( std::string const& );
-        virtual void testRunStarting( TestRunInfo const& );
-        virtual void testGroupStarting( GroupInfo const& groupInfo );
-        virtual void testCaseStarting( TestCaseInfo const& testInfo );
-        virtual void sectionStarting( SectionInfo const& sectionInfo );
-        virtual void assertionStarting( AssertionInfo const& );
-        virtual bool assertionEnded( AssertionStats const& assertionStats );
-        virtual void sectionEnded( SectionStats const& sectionStats );
-        virtual void testCaseEnded( TestCaseStats const& testCaseStats );
-        virtual void testGroupEnded( TestGroupStats const& testGroupStats );
-        virtual void testRunEnded( TestRunStats const& testRunStats );
-        virtual void skipTest( TestCaseInfo const& );
+
+        ~ReporterRegistry() override;
+
+        IStreamingReporterPtr create( std::string const& name, IConfigPtr const& config ) const override;
+
+        void registerReporter( std::string const& name, IReporterFactoryPtr const& factory );
+        void registerListener( IReporterFactoryPtr const& factory );
+
+        FactoryMap const& getFactories() const override;
+        Listeners const& getListeners() const override;
 
     private:
-        Ptr<IReporter> m_legacyReporter;
+        FactoryMap m_factories;
+        Listeners m_listeners;
     };
 }
 
-namespace Catch
-{
-    LegacyReporterAdapter::LegacyReporterAdapter( Ptr<IReporter> const& legacyReporter )
-    :   m_legacyReporter( legacyReporter )
-    {}
-    LegacyReporterAdapter::~LegacyReporterAdapter() {}
+// end catch_reporter_registry.h
+// start catch_tag_alias_registry.h
+
+// start catch_tag_alias.h
+
+#include <string>
+
+namespace Catch {
+
+    struct TagAlias {
+        TagAlias(std::string const& _tag, SourceLineInfo _lineInfo);
+
+        std::string tag;
+        SourceLineInfo lineInfo;
+    };
+
+} // end namespace Catch
+
+// end catch_tag_alias.h
+#include <map>
+
+namespace Catch {
+
+    class TagAliasRegistry : public ITagAliasRegistry {
+    public:
+        ~TagAliasRegistry() override;
+        TagAlias const* find( std::string const& alias ) const override;
+        std::string expandAliases( std::string const& unexpandedTestSpec ) const override;
+        void add( std::string const& alias, std::string const& tag, SourceLineInfo const& lineInfo );
+
+    private:
+        std::map<std::string, TagAlias> m_registry;
+    };
+
+} // end namespace Catch
+
+// end catch_tag_alias_registry.h
+// start catch_startup_exception_registry.h
+
+#include <vector>
+#include <exception>
+
+namespace Catch {
+
+    class StartupExceptionRegistry {
+    public:
+        void add(std::exception_ptr const& exception) noexcept;
+        std::vector<std::exception_ptr> const& getExceptions() const noexcept;
+    private:
+        std::vector<std::exception_ptr> m_exceptions;
+    };
+
+} // end namespace Catch
+
+// end catch_startup_exception_registry.h
+namespace Catch {
+
+    namespace {
+
+        class RegistryHub : public IRegistryHub, public IMutableRegistryHub,
+                            private NonCopyable {
+
+        public: // IRegistryHub
+            RegistryHub() = default;
+            IReporterRegistry const& getReporterRegistry() const override {
+                return m_reporterRegistry;
+            }
+            ITestCaseRegistry const& getTestCaseRegistry() const override {
+                return m_testCaseRegistry;
+            }
+            IExceptionTranslatorRegistry& getExceptionTranslatorRegistry() override {
+                return m_exceptionTranslatorRegistry;
+            }
+            ITagAliasRegistry const& getTagAliasRegistry() const override {
+                return m_tagAliasRegistry;
+            }
+            StartupExceptionRegistry const& getStartupExceptionRegistry() const override {
+                return m_exceptionRegistry;
+            }
 
-    ReporterPreferences LegacyReporterAdapter::getPreferences() const {
-        ReporterPreferences prefs;
-        prefs.shouldRedirectStdOut = m_legacyReporter->shouldRedirectStdout();
-        return prefs;
+        public: // IMutableRegistryHub
+            void registerReporter( std::string const& name, IReporterFactoryPtr const& factory ) override {
+                m_reporterRegistry.registerReporter( name, factory );
+            }
+            void registerListener( IReporterFactoryPtr const& factory ) override {
+                m_reporterRegistry.registerListener( factory );
+            }
+            void registerTest( TestCase const& testInfo ) override {
+                m_testCaseRegistry.registerTest( testInfo );
+            }
+            void registerTranslator( const IExceptionTranslator* translator ) override {
+                m_exceptionTranslatorRegistry.registerTranslator( translator );
+            }
+            void registerTagAlias( std::string const& alias, std::string const& tag, SourceLineInfo const& lineInfo ) override {
+                m_tagAliasRegistry.add( alias, tag, lineInfo );
+            }
+            void registerStartupException() noexcept override {
+                m_exceptionRegistry.add(std::current_exception());
+            }
+
+        private:
+            TestRegistry m_testCaseRegistry;
+            ReporterRegistry m_reporterRegistry;
+            ExceptionTranslatorRegistry m_exceptionTranslatorRegistry;
+            TagAliasRegistry m_tagAliasRegistry;
+            StartupExceptionRegistry m_exceptionRegistry;
+        };
+
+        // Single, global, instance
+        RegistryHub*& getTheRegistryHub() {
+            static RegistryHub* theRegistryHub = nullptr;
+            if( !theRegistryHub )
+                theRegistryHub = new RegistryHub();
+            return theRegistryHub;
+        }
     }
 
-    void LegacyReporterAdapter::noMatchingTestCases( std::string const& ) {}
-    void LegacyReporterAdapter::testRunStarting( TestRunInfo const& ) {
-        m_legacyReporter->StartTesting();
+    IRegistryHub& getRegistryHub() {
+        return *getTheRegistryHub();
     }
-    void LegacyReporterAdapter::testGroupStarting( GroupInfo const& groupInfo ) {
-        m_legacyReporter->StartGroup( groupInfo.name );
+    IMutableRegistryHub& getMutableRegistryHub() {
+        return *getTheRegistryHub();
     }
-    void LegacyReporterAdapter::testCaseStarting( TestCaseInfo const& testInfo ) {
-        m_legacyReporter->StartTestCase( testInfo );
+    void cleanUp() {
+        delete getTheRegistryHub();
+        getTheRegistryHub() = nullptr;
+        cleanUpContext();
     }
-    void LegacyReporterAdapter::sectionStarting( SectionInfo const& sectionInfo ) {
-        m_legacyReporter->StartSection( sectionInfo.name, sectionInfo.description );
+    std::string translateActiveException() {
+        return getRegistryHub().getExceptionTranslatorRegistry().translateActiveException();
     }
-    void LegacyReporterAdapter::assertionStarting( AssertionInfo const& ) {
-        // Not on legacy interface
+
+} // end namespace Catch
+// end catch_registry_hub.cpp
+// start catch_reporter_registry.cpp
+
+namespace Catch {
+
+    ReporterRegistry::~ReporterRegistry() = default;
+
+    IStreamingReporterPtr ReporterRegistry::create( std::string const& name, IConfigPtr const& config ) const {
+        auto it =  m_factories.find( name );
+        if( it == m_factories.end() )
+            return nullptr;
+        return it->second->create( ReporterConfig( config ) );
     }
 
-    bool LegacyReporterAdapter::assertionEnded( AssertionStats const& assertionStats ) {
-        if( assertionStats.assertionResult.getResultType() != ResultWas::Ok ) {
-            for( std::vector<MessageInfo>::const_iterator it = assertionStats.infoMessages.begin(), itEnd = assertionStats.infoMessages.end();
-                    it != itEnd;
-                    ++it ) {
-                if( it->type == ResultWas::Info ) {
-                    ResultBuilder rb( it->macroName.c_str(), it->lineInfo, "", ResultDisposition::Normal );
-                    rb << it->message;
-                    rb.setResultType( ResultWas::Info );
-                    AssertionResult result = rb.build();
-                    m_legacyReporter->Result( result );
-                }
-            }
-        }
-        m_legacyReporter->Result( assertionStats.assertionResult );
-        return true;
+    void ReporterRegistry::registerReporter( std::string const& name, IReporterFactoryPtr const& factory ) {
+        m_factories.emplace(name, factory);
     }
-    void LegacyReporterAdapter::sectionEnded( SectionStats const& sectionStats ) {
-        if( sectionStats.missingAssertions )
-            m_legacyReporter->NoAssertionsInSection( sectionStats.sectionInfo.name );
-        m_legacyReporter->EndSection( sectionStats.sectionInfo.name, sectionStats.assertions );
+    void ReporterRegistry::registerListener( IReporterFactoryPtr const& factory ) {
+        m_listeners.push_back( factory );
     }
-    void LegacyReporterAdapter::testCaseEnded( TestCaseStats const& testCaseStats ) {
-        m_legacyReporter->EndTestCase
-            (   testCaseStats.testInfo,
-                testCaseStats.totals,
-                testCaseStats.stdOut,
-                testCaseStats.stdErr );
+
+    IReporterRegistry::FactoryMap const& ReporterRegistry::getFactories() const {
+        return m_factories;
     }
-    void LegacyReporterAdapter::testGroupEnded( TestGroupStats const& testGroupStats ) {
-        if( testGroupStats.aborting )
-            m_legacyReporter->Aborted();
-        m_legacyReporter->EndGroup( testGroupStats.groupInfo.name, testGroupStats.totals );
+    IReporterRegistry::Listeners const& ReporterRegistry::getListeners() const {
+        return m_listeners;
     }
-    void LegacyReporterAdapter::testRunEnded( TestRunStats const& testRunStats ) {
-        m_legacyReporter->EndTesting( testRunStats.totals );
+
+}
+// end catch_reporter_registry.cpp
+// start catch_result_type.cpp
+
+namespace Catch {
+
+    bool isOk( ResultWas::OfType resultType ) {
+        return ( resultType & ResultWas::FailureBit ) == 0;
     }
-    void LegacyReporterAdapter::skipTest( TestCaseInfo const& ) {
+    bool isJustInfo( int flags ) {
+        return flags == ResultWas::Info;
     }
-}
 
-// #included from: catch_timer.hpp
+    ResultDisposition::Flags operator | ( ResultDisposition::Flags lhs, ResultDisposition::Flags rhs ) {
+        return static_cast<ResultDisposition::Flags>( static_cast<int>( lhs ) | static_cast<int>( rhs ) );
+    }
 
-#ifdef __clang__
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wc++11-long-long"
-#endif
+    bool shouldContinueOnFailure( int flags )    { return ( flags & ResultDisposition::ContinueOnFailure ) != 0; }
+    bool isFalseTest( int flags )                { return ( flags & ResultDisposition::FalseTest ) != 0; }
+    bool shouldSuppressFailure( int flags )      { return ( flags & ResultDisposition::SuppressFail ) != 0; }
 
-#ifdef CATCH_PLATFORM_WINDOWS
-#include <windows.h>
-#else
-#include <sys/time.h>
-#endif
+} // end namespace Catch
+// end catch_result_type.cpp
+// start catch_run_context.cpp
+// start catch_run_context.h
+
+#include <string>
 
 namespace Catch {
 
-    namespace {
-#ifdef CATCH_PLATFORM_WINDOWS
-        uint64_t getCurrentTicks() {
-            static uint64_t hz=0, hzo=0;
-            if (!hz) {
-                QueryPerformanceFrequency( reinterpret_cast<LARGE_INTEGER*>( &hz ) );
-                QueryPerformanceCounter( reinterpret_cast<LARGE_INTEGER*>( &hzo ) );
-            }
-            uint64_t t;
-            QueryPerformanceCounter( reinterpret_cast<LARGE_INTEGER*>( &t ) );
-            return ((t-hzo)*1000000)/hz;
-        }
-#else
-        uint64_t getCurrentTicks() {
-            timeval t;
-            gettimeofday(&t,CATCH_NULL);
-            return static_cast<uint64_t>( t.tv_sec ) * 1000000ull + static_cast<uint64_t>( t.tv_usec );
-        }
-#endif
+    struct IMutableContext;
+
+    class StreamRedirect {
+
+    public:
+        StreamRedirect(std::ostream& stream, std::string& targetString);
+
+        ~StreamRedirect();
+
+    private:
+        std::ostream& m_stream;
+        std::streambuf* m_prevBuf;
+        std::ostringstream m_oss;
+        std::string& m_targetString;
+    };
+
+    // StdErr has two constituent streams in C++, std::cerr and std::clog
+    // This means that we need to redirect 2 streams into 1 to keep proper
+    // order of writes and cannot use StreamRedirect on its own
+    class StdErrRedirect {
+    public:
+        StdErrRedirect(std::string& targetString);
+        ~StdErrRedirect();
+    private:
+        std::streambuf* m_cerrBuf;
+        std::streambuf* m_clogBuf;
+        std::ostringstream m_oss;
+        std::string& m_targetString;
+    };
+
+    ///////////////////////////////////////////////////////////////////////////
+
+    class RunContext : public IResultCapture, public IRunner {
+
+    public:
+        RunContext( RunContext const& ) = delete;
+        RunContext& operator =( RunContext const& ) = delete;
+
+        explicit RunContext(IConfigPtr const& _config, IStreamingReporterPtr&& reporter);
+
+        virtual ~RunContext();
+
+        void testGroupStarting(std::string const& testSpec, std::size_t groupIndex, std::size_t groupsCount);
+        void testGroupEnded(std::string const& testSpec, Totals const& totals, std::size_t groupIndex, std::size_t groupsCount);
+
+        Totals runTest(TestCase const& testCase);
+
+        IConfigPtr config() const;
+        IStreamingReporter& reporter() const;
+
+    private: // IResultCapture
+
+        void assertionStarting(AssertionInfo const& info) override;
+        void assertionEnded(AssertionResult const& result) override;
+
+        bool sectionStarted( SectionInfo const& sectionInfo, Counts& assertions ) override;
+        bool testForMissingAssertions(Counts& assertions);
+
+        void sectionEnded(SectionEndInfo const& endInfo) override;
+        void sectionEndedEarly(SectionEndInfo const& endInfo) override;
+
+        void benchmarkStarting( BenchmarkInfo const& info ) override;
+        void benchmarkEnded( BenchmarkStats const& stats ) override;
+
+        void pushScopedMessage(MessageInfo const& message) override;
+        void popScopedMessage(MessageInfo const& message) override;
+
+        std::string getCurrentTestName() const override;
+
+        const AssertionResult* getLastResult() const override;
+
+        void exceptionEarlyReported() override;
+
+        void handleFatalErrorCondition( StringRef message ) override;
+
+        bool lastAssertionPassed() override;
+
+        void assertionPassed() override;
+
+        void assertionRun() override;
+
+    public:
+        // !TBD We need to do this another way!
+        bool aborting() const override;
+
+    private:
+
+        void runCurrentTest(std::string& redirectedCout, std::string& redirectedCerr);
+        void invokeActiveTestCase();
+
+    private:
+
+        void handleUnfinishedSections();
+
+        TestRunInfo m_runInfo;
+        IMutableContext& m_context;
+        TestCase const* m_activeTestCase = nullptr;
+        ITracker* m_testCaseTracker;
+        Option<AssertionResult> m_lastResult;
+
+        IConfigPtr m_config;
+        Totals m_totals;
+        IStreamingReporterPtr m_reporter;
+        std::vector<MessageInfo> m_messages;
+        AssertionInfo m_lastAssertionInfo;
+        std::vector<SectionEndInfo> m_unfinishedSections;
+        std::vector<ITracker*> m_activeSections;
+        TrackerContext m_trackerContext;
+        std::size_t m_prevPassed = 0;
+        bool m_shouldReportUnexpected = true;
+    };
+
+    IResultCapture& getResultCapture();
+
+} // end namespace Catch
+
+// end catch_run_context.h
+
+#include <cassert>
+#include <algorithm>
+
+namespace Catch {
+
+    StreamRedirect::StreamRedirect(std::ostream& stream, std::string& targetString)
+        : m_stream(stream),
+        m_prevBuf(stream.rdbuf()),
+        m_targetString(targetString) {
+        stream.rdbuf(m_oss.rdbuf());
     }
 
-    void Timer::start() {
-        m_ticks = getCurrentTicks();
+    StreamRedirect::~StreamRedirect() {
+        m_targetString += m_oss.str();
+        m_stream.rdbuf(m_prevBuf);
     }
-    unsigned int Timer::getElapsedMicroseconds() const {
-        return static_cast<unsigned int>(getCurrentTicks() - m_ticks);
+
+    StdErrRedirect::StdErrRedirect(std::string & targetString)
+        :m_cerrBuf(cerr().rdbuf()), m_clogBuf(clog().rdbuf()),
+        m_targetString(targetString) {
+        cerr().rdbuf(m_oss.rdbuf());
+        clog().rdbuf(m_oss.rdbuf());
     }
-    unsigned int Timer::getElapsedMilliseconds() const {
-        return static_cast<unsigned int>(getElapsedMicroseconds()/1000);
+
+    StdErrRedirect::~StdErrRedirect() {
+        m_targetString += m_oss.str();
+        cerr().rdbuf(m_cerrBuf);
+        clog().rdbuf(m_clogBuf);
     }
-    double Timer::getElapsedSeconds() const {
-        return getElapsedMicroseconds()/1000000.0;
+
+    RunContext::RunContext(IConfigPtr const& _config, IStreamingReporterPtr&& reporter)
+    :   m_runInfo(_config->name()),
+        m_context(getCurrentMutableContext()),
+        m_config(_config),
+        m_reporter(std::move(reporter)),
+        m_lastAssertionInfo{ "", SourceLineInfo("",0), "", ResultDisposition::Normal }
+    {
+        m_context.setRunner(this);
+        m_context.setConfig(m_config);
+        m_context.setResultCapture(this);
+        m_reporter->testRunStarting(m_runInfo);
     }
 
-} // namespace Catch
+    RunContext::~RunContext() {
+        m_reporter->testRunEnded(TestRunStats(m_runInfo, m_totals, aborting()));
+    }
 
-#ifdef __clang__
-#pragma clang diagnostic pop
-#endif
-// #included from: catch_common.hpp
-#define TWOBLUECUBES_CATCH_COMMON_HPP_INCLUDED
+    void RunContext::testGroupStarting(std::string const& testSpec, std::size_t groupIndex, std::size_t groupsCount) {
+        m_reporter->testGroupStarting(GroupInfo(testSpec, groupIndex, groupsCount));
+    }
 
-namespace Catch {
+    void RunContext::testGroupEnded(std::string const& testSpec, Totals const& totals, std::size_t groupIndex, std::size_t groupsCount) {
+        m_reporter->testGroupEnded(TestGroupStats(GroupInfo(testSpec, groupIndex, groupsCount), totals, aborting()));
+    }
 
-    bool startsWith( std::string const& s, std::string const& prefix ) {
-        return s.size() >= prefix.size() && s.substr( 0, prefix.size() ) == prefix;
+    Totals RunContext::runTest(TestCase const& testCase) {
+        Totals prevTotals = m_totals;
+
+        std::string redirectedCout;
+        std::string redirectedCerr;
+
+        TestCaseInfo testInfo = testCase.getTestCaseInfo();
+
+        m_reporter->testCaseStarting(testInfo);
+
+        m_activeTestCase = &testCase;
+
+        ITracker& rootTracker = m_trackerContext.startRun();
+        assert(rootTracker.isSectionTracker());
+        static_cast<SectionTracker&>(rootTracker).addInitialFilters(m_config->getSectionsToRun());
+        do {
+            m_trackerContext.startCycle();
+            m_testCaseTracker = &SectionTracker::acquire(m_trackerContext, TestCaseTracking::NameAndLocation(testInfo.name, testInfo.lineInfo));
+            runCurrentTest(redirectedCout, redirectedCerr);
+        } while (!m_testCaseTracker->isSuccessfullyCompleted() && !aborting());
+
+        Totals deltaTotals = m_totals.delta(prevTotals);
+        if (testInfo.expectedToFail() && deltaTotals.testCases.passed > 0) {
+            deltaTotals.assertions.failed++;
+            deltaTotals.testCases.passed--;
+            deltaTotals.testCases.failed++;
+        }
+        m_totals.testCases += deltaTotals.testCases;
+        m_reporter->testCaseEnded(TestCaseStats(testInfo,
+                                  deltaTotals,
+                                  redirectedCout,
+                                  redirectedCerr,
+                                  aborting()));
+
+        m_activeTestCase = nullptr;
+        m_testCaseTracker = nullptr;
+
+        return deltaTotals;
     }
-    bool endsWith( std::string const& s, std::string const& suffix ) {
-        return s.size() >= suffix.size() && s.substr( s.size()-suffix.size(), suffix.size() ) == suffix;
+
+    IConfigPtr RunContext::config() const {
+        return m_config;
     }
-    bool contains( std::string const& s, std::string const& infix ) {
-        return s.find( infix ) != std::string::npos;
+
+    IStreamingReporter& RunContext::reporter() const {
+        return *m_reporter;
     }
-    void toLowerInPlace( std::string& s ) {
-        std::transform( s.begin(), s.end(), s.begin(), ::tolower );
+
+    void RunContext::assertionStarting(AssertionInfo const& info) {
+        m_reporter->assertionStarting( info );
     }
-    std::string toLower( std::string const& s ) {
-        std::string lc = s;
-        toLowerInPlace( lc );
-        return lc;
+    void RunContext::assertionEnded(AssertionResult const & result) {
+        if (result.getResultType() == ResultWas::Ok) {
+            m_totals.assertions.passed++;
+        } else if (!result.isOk()) {
+            if( m_activeTestCase->getTestCaseInfo().okToFail() )
+                m_totals.assertions.failedButOk++;
+            else
+                m_totals.assertions.failed++;
+        }
+
+        // We have no use for the return value (whether messages should be cleared), because messages were made scoped
+        // and should be let to clear themselves out.
+        static_cast<void>(m_reporter->assertionEnded(AssertionStats(result, m_messages, m_totals)));
+
+        // Reset working state
+        m_lastAssertionInfo = { "", m_lastAssertionInfo.lineInfo, "{Unknown expression after the reported line}", m_lastAssertionInfo.resultDisposition };
+        m_lastResult = result;
     }
-    std::string trim( std::string const& str ) {
-        static char const* whitespaceChars = "\n\r\t ";
-        std::string::size_type start = str.find_first_not_of( whitespaceChars );
-        std::string::size_type end = str.find_last_not_of( whitespaceChars );
 
-        return start != std::string::npos ? str.substr( start, 1+end-start ) : "";
+    bool RunContext::sectionStarted(SectionInfo const & sectionInfo, Counts & assertions) {
+        ITracker& sectionTracker = SectionTracker::acquire(m_trackerContext, TestCaseTracking::NameAndLocation(sectionInfo.name, sectionInfo.lineInfo));
+        if (!sectionTracker.isOpen())
+            return false;
+        m_activeSections.push_back(&sectionTracker);
+
+        m_lastAssertionInfo.lineInfo = sectionInfo.lineInfo;
+
+        m_reporter->sectionStarting(sectionInfo);
+
+        assertions = m_totals.assertions;
+
+        return true;
     }
 
-    bool replaceInPlace( std::string& str, std::string const& replaceThis, std::string const& withThis ) {
-        bool replaced = false;
-        std::size_t i = str.find( replaceThis );
-        while( i != std::string::npos ) {
-            replaced = true;
-            str = str.substr( 0, i ) + withThis + str.substr( i+replaceThis.size() );
-            if( i < str.size()-withThis.size() )
-                i = str.find( replaceThis, i+withThis.size() );
-            else
-                i = std::string::npos;
+    bool RunContext::testForMissingAssertions(Counts& assertions) {
+        if (assertions.total() != 0)
+            return false;
+        if (!m_config->warnAboutMissingAssertions())
+            return false;
+        if (m_trackerContext.currentTracker().hasChildren())
+            return false;
+        m_totals.assertions.failed++;
+        assertions.failed++;
+        return true;
+    }
+
+    void RunContext::sectionEnded(SectionEndInfo const & endInfo) {
+        Counts assertions = m_totals.assertions - endInfo.prevAssertions;
+        bool missingAssertions = testForMissingAssertions(assertions);
+
+        if (!m_activeSections.empty()) {
+            m_activeSections.back()->close();
+            m_activeSections.pop_back();
         }
-        return replaced;
+
+        m_reporter->sectionEnded(SectionStats(endInfo.sectionInfo, assertions, endInfo.durationInSeconds, missingAssertions));
+        m_messages.clear();
     }
 
-    pluralise::pluralise( std::size_t count, std::string const& label )
-    :   m_count( count ),
-        m_label( label )
-    {}
+    void RunContext::sectionEndedEarly(SectionEndInfo const & endInfo) {
+        if (m_unfinishedSections.empty())
+            m_activeSections.back()->fail();
+        else
+            m_activeSections.back()->close();
+        m_activeSections.pop_back();
 
-    std::ostream& operator << ( std::ostream& os, pluralise const& pluraliser ) {
-        os << pluraliser.m_count << " " << pluraliser.m_label;
-        if( pluraliser.m_count != 1 )
-            os << "s";
-        return os;
+        m_unfinishedSections.push_back(endInfo);
+    }
+    void RunContext::benchmarkStarting( BenchmarkInfo const& info ) {
+        m_reporter->benchmarkStarting( info );
+    }
+    void RunContext::benchmarkEnded( BenchmarkStats const& stats ) {
+        m_reporter->benchmarkEnded( stats );
     }
 
-    SourceLineInfo::SourceLineInfo() : line( 0 ){}
-    SourceLineInfo::SourceLineInfo( char const* _file, std::size_t _line )
-    :   file( _file ),
-        line( _line )
-    {}
-    SourceLineInfo::SourceLineInfo( SourceLineInfo const& other )
-    :   file( other.file ),
-        line( other.line )
-    {}
-    bool SourceLineInfo::empty() const {
-        return file.empty();
+    void RunContext::pushScopedMessage(MessageInfo const & message) {
+        m_messages.push_back(message);
     }
-    bool SourceLineInfo::operator == ( SourceLineInfo const& other ) const {
-        return line == other.line && file == other.file;
+
+    void RunContext::popScopedMessage(MessageInfo const & message) {
+        m_messages.erase(std::remove(m_messages.begin(), m_messages.end(), message), m_messages.end());
     }
-    bool SourceLineInfo::operator < ( SourceLineInfo const& other ) const {
-        return line < other.line || ( line == other.line  && file < other.file );
+
+    std::string RunContext::getCurrentTestName() const {
+        return m_activeTestCase
+            ? m_activeTestCase->getTestCaseInfo().name
+            : std::string();
     }
 
-    void seedRng( IConfig const& config ) {
-        if( config.rngSeed() != 0 )
-            std::srand( config.rngSeed() );
+    const AssertionResult * RunContext::getLastResult() const {
+        return &(*m_lastResult);
     }
-    unsigned int rngSeed() {
-        return getCurrentContext().getConfig()->rngSeed();
+
+    void RunContext::exceptionEarlyReported() {
+        m_shouldReportUnexpected = false;
     }
 
-    std::ostream& operator << ( std::ostream& os, SourceLineInfo const& info ) {
-#ifndef __GNUG__
-        os << info.file << "(" << info.line << ")";
-#else
-        os << info.file << ":" << info.line;
-#endif
-        return os;
+    void RunContext::handleFatalErrorCondition( StringRef message ) {
+        // First notify reporter that bad things happened
+        m_reporter->fatalErrorEncountered(message);
+
+        // Don't rebuild the result -- the stringification itself can cause more fatal errors
+        // Instead, fake a result data.
+        AssertionResultData tempResult( ResultWas::FatalErrorCondition, { false } );
+        tempResult.message = message;
+        AssertionResult result(m_lastAssertionInfo, tempResult);
+
+        getResultCapture().assertionEnded(result);
+
+        handleUnfinishedSections();
+
+        // Recreate section for test case (as we will lose the one that was in scope)
+        auto const& testCaseInfo = m_activeTestCase->getTestCaseInfo();
+        SectionInfo testCaseSection(testCaseInfo.lineInfo, testCaseInfo.name, testCaseInfo.description);
+
+        Counts assertions;
+        assertions.failed = 1;
+        SectionStats testCaseSectionStats(testCaseSection, assertions, 0, false);
+        m_reporter->sectionEnded(testCaseSectionStats);
+
+        auto const& testInfo = m_activeTestCase->getTestCaseInfo();
+
+        Totals deltaTotals;
+        deltaTotals.testCases.failed = 1;
+        deltaTotals.assertions.failed = 1;
+        m_reporter->testCaseEnded(TestCaseStats(testInfo,
+                                  deltaTotals,
+                                  std::string(),
+                                  std::string(),
+                                  false));
+        m_totals.testCases.failed++;
+        testGroupEnded(std::string(), m_totals, 1, 1);
+        m_reporter->testRunEnded(TestRunStats(m_runInfo, m_totals, false));
     }
 
-    void throwLogicError( std::string const& message, SourceLineInfo const& locationInfo ) {
-        std::ostringstream oss;
-        oss << locationInfo << ": Internal Catch error: '" << message << "'";
-        if( alwaysTrue() )
-            throw std::logic_error( oss.str() );
+    bool RunContext::lastAssertionPassed() {
+         return m_totals.assertions.passed == (m_prevPassed + 1);
     }
-}
 
-// #included from: catch_section.hpp
-#define TWOBLUECUBES_CATCH_SECTION_HPP_INCLUDED
+    void RunContext::assertionPassed() {
+        ++m_totals.assertions.passed;
+        m_lastAssertionInfo.capturedExpression = "{Unknown expression after the reported line}";
+        m_lastAssertionInfo.macroName = "";
+    }
 
-namespace Catch {
+    void RunContext::assertionRun() {
+        m_prevPassed = m_totals.assertions.passed;
+    }
 
-    SectionInfo::SectionInfo
-        (   SourceLineInfo const& _lineInfo,
-            std::string const& _name,
-            std::string const& _description )
-    :   name( _name ),
-        description( _description ),
-        lineInfo( _lineInfo )
-    {}
+    bool RunContext::aborting() const {
+        return m_totals.assertions.failed == static_cast<std::size_t>(m_config->abortAfter());
+    }
+
+    void RunContext::runCurrentTest(std::string & redirectedCout, std::string & redirectedCerr) {
+        auto const& testCaseInfo = m_activeTestCase->getTestCaseInfo();
+        SectionInfo testCaseSection(testCaseInfo.lineInfo, testCaseInfo.name, testCaseInfo.description);
+        m_reporter->sectionStarting(testCaseSection);
+        Counts prevAssertions = m_totals.assertions;
+        double duration = 0;
+        m_shouldReportUnexpected = true;
+        try {
+            m_lastAssertionInfo = { "TEST_CASE", testCaseInfo.lineInfo, "", ResultDisposition::Normal };
+
+            seedRng(*m_config);
+
+            Timer timer;
+            timer.start();
+            if (m_reporter->getPreferences().shouldRedirectStdOut) {
+                StreamRedirect coutRedir(cout(), redirectedCout);
+                StdErrRedirect errRedir(redirectedCerr);
+                invokeActiveTestCase();
+            } else {
+                invokeActiveTestCase();
+            }
+            duration = timer.getElapsedSeconds();
+        } catch (TestFailureException&) {
+            // This just means the test was aborted due to failure
+        } catch (...) {
+            // Under CATCH_CONFIG_FAST_COMPILE, unexpected exceptions under REQUIRE assertions
+            // are reported without translation at the point of origin.
+            if (m_shouldReportUnexpected) {
+                AssertionHandler
+                    ( m_lastAssertionInfo.macroName,
+                      m_lastAssertionInfo.lineInfo,
+                      m_lastAssertionInfo.capturedExpression,
+                      m_lastAssertionInfo.resultDisposition ).useActiveException();
+            }
+        }
+        m_testCaseTracker->close();
+        handleUnfinishedSections();
+        m_messages.clear();
+
+        Counts assertions = m_totals.assertions - prevAssertions;
+        bool missingAssertions = testForMissingAssertions(assertions);
+        SectionStats testCaseSectionStats(testCaseSection, assertions, duration, missingAssertions);
+        m_reporter->sectionEnded(testCaseSectionStats);
+    }
+
+    void RunContext::invokeActiveTestCase() {
+        FatalConditionHandler fatalConditionHandler; // Handle signals
+        m_activeTestCase->invoke();
+        fatalConditionHandler.reset();
+    }
+
+    void RunContext::handleUnfinishedSections() {
+        // If sections ended prematurely due to an exception we stored their
+        // infos here so we can tear them down outside the unwind process.
+        for (auto it = m_unfinishedSections.rbegin(),
+             itEnd = m_unfinishedSections.rend();
+             it != itEnd;
+             ++it)
+            sectionEnded(*it);
+        m_unfinishedSections.clear();
+    }
+
+    IResultCapture& getResultCapture() {
+        if (auto* capture = getCurrentContext().getResultCapture())
+            return *capture;
+        else
+            CATCH_INTERNAL_ERROR("No result capture instance");
+    }
+}
+// end catch_run_context.cpp
+// start catch_section.cpp
+
+namespace Catch {
 
     Section::Section( SectionInfo const& info )
     :   m_info( info ),
@@ -7883,6 +7985,10 @@ namespace Catch {
         m_timer.start();
     }
 
+#if defined(_MSC_VER)
+#pragma warning(push)
+#pragma warning(disable:4996) // std::uncaught_exception is deprecated in C++17
+#endif
     Section::~Section() {
         if( m_sectionIncluded ) {
             SectionEndInfo endInfo( m_info, m_assertions, m_timer.getElapsedSeconds() );
@@ -7892,6 +7998,9 @@ namespace Catch {
                 getResultCapture().sectionEnded( endInfo );
         }
     }
+#if defined(_MSC_VER)
+#pragma warning(pop)
+#endif
 
     // This indicates whether the section should be executed or not
     Section::operator bool() const {
@@ -7899,1045 +8008,1887 @@ namespace Catch {
     }
 
 } // end namespace Catch
+// end catch_section.cpp
+// start catch_section_info.cpp
 
-// #included from: catch_debugger.hpp
-#define TWOBLUECUBES_CATCH_DEBUGGER_HPP_INCLUDED
+namespace Catch {
 
-#include <iostream>
+    SectionInfo::SectionInfo
+        (   SourceLineInfo const& _lineInfo,
+            std::string const& _name,
+            std::string const& _description )
+    :   name( _name ),
+        description( _description ),
+        lineInfo( _lineInfo )
+    {}
 
-#ifdef CATCH_PLATFORM_MAC
+    SectionEndInfo::SectionEndInfo( SectionInfo const& _sectionInfo, Counts const& _prevAssertions, double _durationInSeconds )
+    : sectionInfo( _sectionInfo ), prevAssertions( _prevAssertions ), durationInSeconds( _durationInSeconds )
+    {}
 
-    #include <assert.h>
-    #include <stdbool.h>
-    #include <sys/types.h>
-    #include <unistd.h>
-    #include <sys/sysctl.h>
+} // end namespace Catch
+// end catch_section_info.cpp
+// start catch_session.cpp
 
-    namespace Catch{
+// start catch_session.h
 
-        // The following function is taken directly from the following technical note:
-        // http://developer.apple.com/library/mac/#qa/qa2004/qa1361.html
+#include <memory>
 
-        // Returns true if the current process is being debugged (either
-        // running under the debugger or has a debugger attached post facto).
-        bool isDebuggerActive(){
+namespace Catch {
 
-            int                 mib[4];
-            struct kinfo_proc   info;
-            size_t              size;
+    class Session : NonCopyable {
+    public:
 
-            // Initialize the flags so that, if sysctl fails for some bizarre
-            // reason, we get a predictable result.
+        Session();
+        ~Session() override;
 
-            info.kp_proc.p_flag = 0;
+        void showHelp() const;
+        void libIdentify();
 
-            // Initialize mib, which tells sysctl the info we want, in this case
-            // we're looking for information about a specific process ID.
+        int applyCommandLine( int argc, char* argv[] );
 
-            mib[0] = CTL_KERN;
-            mib[1] = KERN_PROC;
-            mib[2] = KERN_PROC_PID;
-            mib[3] = getpid();
+        void useConfigData( ConfigData const& configData );
 
-            // Call sysctl.
+        int run( int argc, char* argv[] );
+    #if defined(WIN32) && defined(UNICODE)
+        int run( int argc, wchar_t* const argv[] );
+    #endif
+        int run();
 
-            size = sizeof(info);
-            if( sysctl(mib, sizeof(mib) / sizeof(*mib), &info, &size, CATCH_NULL, 0) != 0 ) {
-                Catch::cerr() << "\n** Call to sysctl failed - unable to determine if debugger is active **\n" << std::endl;
-                return false;
+        clara::Parser const& cli() const;
+        void cli( clara::Parser const& newParser );
+        ConfigData& configData();
+        Config& config();
+    private:
+        int runInternal();
+
+        clara::Parser m_cli;
+        ConfigData m_configData;
+        std::shared_ptr<Config> m_config;
+        bool m_startupExceptions = false;
+    };
+
+} // end namespace Catch
+
+// end catch_session.h
+// start catch_version.h
+
+#include <iosfwd>
+
+namespace Catch {
+
+    // Versioning information
+    struct Version {
+        Version( Version const& ) = delete;
+        Version& operator=( Version const& ) = delete;
+        Version(    unsigned int _majorVersion,
+                    unsigned int _minorVersion,
+                    unsigned int _patchNumber,
+                    char const * const _branchName,
+                    unsigned int _buildNumber );
+
+        unsigned int const majorVersion;
+        unsigned int const minorVersion;
+        unsigned int const patchNumber;
+
+        // buildNumber is only used if branchName is not null
+        char const * const branchName;
+        unsigned int const buildNumber;
+
+        friend std::ostream& operator << ( std::ostream& os, Version const& version );
+    };
+
+    Version const& libraryVersion();
+}
+
+// end catch_version.h
+#include <cstdlib>
+#include <iomanip>
+
+namespace {
+    const int MaxExitCode = 255;
+    using Catch::IStreamingReporterPtr;
+    using Catch::IConfigPtr;
+    using Catch::Config;
+
+    IStreamingReporterPtr createReporter(std::string const& reporterName, IConfigPtr const& config) {
+        auto reporter = Catch::getRegistryHub().getReporterRegistry().create(reporterName, config);
+        CATCH_ENFORCE(reporter, "No reporter registered with name: '" << reporterName << "'");
+
+        return reporter;
+    }
+
+#ifndef CATCH_CONFIG_DEFAULT_REPORTER
+#define CATCH_CONFIG_DEFAULT_REPORTER "console"
+#endif
+
+    IStreamingReporterPtr makeReporter(std::shared_ptr<Config> const& config) {
+        auto const& reporterNames = config->getReporterNames();
+        if (reporterNames.empty())
+            return createReporter(CATCH_CONFIG_DEFAULT_REPORTER, config);
+
+        IStreamingReporterPtr reporter;
+        for (auto const& name : reporterNames)
+            addReporter(reporter, createReporter(name, config));
+        return reporter;
+    }
+
+#undef CATCH_CONFIG_DEFAULT_REPORTER
+
+    void addListeners(IStreamingReporterPtr& reporters, IConfigPtr const& config) {
+        auto const& listeners = Catch::getRegistryHub().getReporterRegistry().getListeners();
+        for (auto const& listener : listeners)
+            addReporter(reporters, listener->create(Catch::ReporterConfig(config)));
+    }
+
+    Catch::Totals runTests(std::shared_ptr<Config> const& config) {
+        using namespace Catch;
+        IStreamingReporterPtr reporter = makeReporter(config);
+        addListeners(reporter, config);
+
+        RunContext context(config, std::move(reporter));
+
+        Totals totals;
+
+        context.testGroupStarting(config->name(), 1, 1);
+
+        TestSpec testSpec = config->testSpec();
+        if (!testSpec.hasFilters())
+            testSpec = TestSpecParser(ITagAliasRegistry::get()).parse("~[.]").testSpec(); // All not hidden tests
+
+        auto const& allTestCases = getAllTestCasesSorted(*config);
+        for (auto const& testCase : allTestCases) {
+            if (!context.aborting() && matchTest(testCase, testSpec, *config))
+                totals += context.runTest(testCase);
+            else
+                context.reporter().skipTest(testCase);
+        }
+
+        context.testGroupEnded(config->name(), totals, 1, 1);
+        return totals;
+    }
+
+    void applyFilenamesAsTags(Catch::IConfig const& config) {
+        using namespace Catch;
+        auto& tests = const_cast<std::vector<TestCase>&>(getAllTestCasesSorted(config));
+        for (auto& testCase : tests) {
+            auto tags = testCase.tags;
+
+            std::string filename = testCase.lineInfo.file;
+            auto lastSlash = filename.find_last_of("\\/");
+            if (lastSlash != std::string::npos) {
+                filename.erase(0, lastSlash);
+                filename[0] = '#';
             }
 
-            // We're being debugged if the P_TRACED flag is set.
+            auto lastDot = filename.find_last_of('.');
+            if (lastDot != std::string::npos) {
+                filename.erase(lastDot);
+            }
 
-            return ( (info.kp_proc.p_flag & P_TRACED) != 0 );
+            tags.push_back(std::move(filename));
+            setTags(testCase, tags);
         }
-    } // namespace Catch
+    }
 
-#elif defined(_MSC_VER)
-    extern "C" __declspec(dllimport) int __stdcall IsDebuggerPresent();
-    namespace Catch {
-        bool isDebuggerActive() {
-            return IsDebuggerPresent() != 0;
+}
+
+namespace Catch {
+
+    Session::Session() {
+        static bool alreadyInstantiated = false;
+        if( alreadyInstantiated ) {
+            try         { CATCH_INTERNAL_ERROR( "Only one instance of Catch::Session can ever be used" ); }
+            catch(...)  { getMutableRegistryHub().registerStartupException(); }
         }
+
+        const auto& exceptions = getRegistryHub().getStartupExceptionRegistry().getExceptions();
+        if ( !exceptions.empty() ) {
+            m_startupExceptions = true;
+            Colour colourGuard( Colour::Red );
+            Catch::cerr() << "Errors occured during startup!" << '\n';
+            // iterate over all exceptions and notify user
+            for ( const auto& ex_ptr : exceptions ) {
+                try {
+                    std::rethrow_exception(ex_ptr);
+                } catch ( std::exception const& ex ) {
+                    Catch::cerr() << Column( ex.what() ).indent(2) << '\n';
+                }
+            }
+        }
+
+        alreadyInstantiated = true;
+        m_cli = makeCommandLineParser( m_configData );
     }
-#elif defined(__MINGW32__)
-    extern "C" __declspec(dllimport) int __stdcall IsDebuggerPresent();
-    namespace Catch {
-        bool isDebuggerActive() {
-            return IsDebuggerPresent() != 0;
+    Session::~Session() {
+        Catch::cleanUp();
+    }
+
+    void Session::showHelp() const {
+        Catch::cout()
+                << "\nCatch v" << libraryVersion() << "\n"
+                << m_cli << std::endl
+                << "For more detailed usage please see the project docs\n" << std::endl;
+    }
+    void Session::libIdentify() {
+        Catch::cout()
+                << std::left << std::setw(16) << "description: " << "A Catch test executable\n"
+                << std::left << std::setw(16) << "category: " << "testframework\n"
+                << std::left << std::setw(16) << "framework: " << "Catch Test\n"
+                << std::left << std::setw(16) << "version: " << libraryVersion() << std::endl;
+    }
+
+    int Session::applyCommandLine( int argc, char* argv[] ) {
+        if( m_startupExceptions )
+            return 1;
+
+        auto result = m_cli.parse( clara::Args( argc, argv ) );
+        if( !result ) {
+            Catch::cerr()
+                << Colour( Colour::Red )
+                << "\nError(s) in input:\n"
+                << Column( result.errorMessage() ).indent( 2 )
+                << "\n\n";
+            Catch::cerr() << "Run with -? for usage\n" << std::endl;
+            return MaxExitCode;
         }
+
+        if( m_configData.showHelp )
+            showHelp();
+        if( m_configData.libIdentify )
+            libIdentify();
+        m_config.reset();
+        return 0;
     }
-#else
-    namespace Catch {
-       inline bool isDebuggerActive() { return false; }
+
+    void Session::useConfigData( ConfigData const& configData ) {
+        m_configData = configData;
+        m_config.reset();
     }
-#endif // Platform
 
-#ifdef CATCH_PLATFORM_WINDOWS
-    extern "C" __declspec(dllimport) void __stdcall OutputDebugStringA( const char* );
-    namespace Catch {
-        void writeToDebugConsole( std::string const& text ) {
-            ::OutputDebugStringA( text.c_str() );
+    int Session::run( int argc, char* argv[] ) {
+        if( m_startupExceptions )
+            return 1;
+        int returnCode = applyCommandLine( argc, argv );
+        if( returnCode == 0 )
+            returnCode = run();
+        return returnCode;
+    }
+
+#if defined(WIN32) && defined(UNICODE)
+    int Session::run( int argc, wchar_t* const argv[] ) {
+
+        char **utf8Argv = new char *[ argc ];
+
+        for ( int i = 0; i < argc; ++i ) {
+            int bufSize = WideCharToMultiByte( CP_UTF8, 0, argv[i], -1, NULL, 0, NULL, NULL );
+
+            utf8Argv[ i ] = new char[ bufSize ];
+
+            WideCharToMultiByte( CP_UTF8, 0, argv[i], -1, utf8Argv[i], bufSize, NULL, NULL );
         }
+
+        int returnCode = run( argc, utf8Argv );
+
+        for ( int i = 0; i < argc; ++i )
+            delete [] utf8Argv[ i ];
+
+        delete [] utf8Argv;
+
+        return returnCode;
     }
-#else
-    namespace Catch {
-        void writeToDebugConsole( std::string const& text ) {
-            // !TBD: Need a version for Mac/ XCode and other IDEs
-            Catch::cout() << text;
+#endif
+    int Session::run() {
+        if( ( m_configData.waitForKeypress & WaitForKeypress::BeforeStart ) != 0 ) {
+            Catch::cout() << "...waiting for enter/ return before starting" << std::endl;
+            static_cast<void>(std::getchar());
+        }
+        int exitCode = runInternal();
+        if( ( m_configData.waitForKeypress & WaitForKeypress::BeforeExit ) != 0 ) {
+            Catch::cout() << "...waiting for enter/ return before exiting, with code: " << exitCode << std::endl;
+            static_cast<void>(std::getchar());
         }
+        return exitCode;
     }
-#endif // Platform
 
-// #included from: catch_tostring.hpp
-#define TWOBLUECUBES_CATCH_TOSTRING_HPP_INCLUDED
+    clara::Parser const& Session::cli() const {
+        return m_cli;
+    }
+    void Session::cli( clara::Parser const& newParser ) {
+        m_cli = newParser;
+    }
+    ConfigData& Session::configData() {
+        return m_configData;
+    }
+    Config& Session::config() {
+        if( !m_config )
+            m_config = std::make_shared<Config>( m_configData );
+        return *m_config;
+    }
 
-namespace Catch {
+    int Session::runInternal() {
+        if( m_startupExceptions )
+            return 1;
 
-namespace Detail {
+        if( m_configData.showHelp || m_configData.libIdentify )
+            return 0;
 
-    const std::string unprintableString = "{?}";
+        try
+        {
+            config(); // Force config to be constructed
 
-    namespace {
-        const int hexThreshold = 255;
+            seedRng( *m_config );
 
-        struct Endianness {
-            enum Arch { Big, Little };
+            if( m_configData.filenamesAsTags )
+                applyFilenamesAsTags( *m_config );
 
-            static Arch which() {
-                union _{
-                    int asInt;
-                    char asChar[sizeof (int)];
-                } u;
+            // Handle list request
+            if( Option<std::size_t> listed = list( config() ) )
+                return static_cast<int>( *listed );
 
-                u.asInt = 1;
-                return ( u.asChar[sizeof(int)-1] == 1 ) ? Big : Little;
-            }
-        };
+            return (std::min)( MaxExitCode, static_cast<int>( runTests( m_config ).assertions.failed ) );
+        }
+        catch( std::exception& ex ) {
+            Catch::cerr() << ex.what() << std::endl;
+            return MaxExitCode;
+        }
     }
 
-    std::string rawMemoryToString( const void *object, std::size_t size )
-    {
-        // Reverse order for little endian architectures
-        int i = 0, end = static_cast<int>( size ), inc = 1;
-        if( Endianness::which() == Endianness::Little ) {
-            i = end-1;
-            end = inc = -1;
-        }
+} // end namespace Catch
+// end catch_session.cpp
+// start catch_startup_exception_registry.cpp
 
-        unsigned char const *bytes = static_cast<unsigned char const *>(object);
-        std::ostringstream os;
-        os << "0x" << std::setfill('0') << std::hex;
-        for( ; i != end; i += inc )
-             os << std::setw(2) << static_cast<unsigned>(bytes[i]);
-       return os.str();
+namespace Catch {
+    void StartupExceptionRegistry::add( std::exception_ptr const& exception ) noexcept {
+        try {
+            m_exceptions.push_back(exception);
+        }
+        catch(...) {
+            // If we run out of memory during start-up there's really not a lot more we can do about it
+            std::terminate();
+        }
     }
-}
 
-std::string toString( std::string const& value ) {
-    std::string s = value;
-    if( getCurrentContext().getConfig()->showInvisibles() ) {
-        for(size_t i = 0; i < s.size(); ++i ) {
-            std::string subs;
-            switch( s[i] ) {
-            case '\n': subs = "\\n"; break;
-            case '\t': subs = "\\t"; break;
-            default: break;
-            }
-            if( !subs.empty() ) {
-                s = s.substr( 0, i ) + subs + s.substr( i+1 );
-                ++i;
-            }
-        }
+    std::vector<std::exception_ptr> const& StartupExceptionRegistry::getExceptions() const noexcept {
+        return m_exceptions;
     }
-    return "\"" + s + "\"";
-}
-std::string toString( std::wstring const& value ) {
 
-    std::string s;
-    s.reserve( value.size() );
-    for(size_t i = 0; i < value.size(); ++i )
-        s += value[i] <= 0xff ? static_cast<char>( value[i] ) : '?';
-    return Catch::toString( s );
-}
+} // end namespace Catch
+// end catch_startup_exception_registry.cpp
+// start catch_stream.cpp
 
-std::string toString( const char* const value ) {
-    return value ? Catch::toString( std::string( value ) ) : std::string( "{null string}" );
-}
+#include <stdexcept>
+#include <cstdio>
+#include <iostream>
 
-std::string toString( char* const value ) {
-    return Catch::toString( static_cast<const char*>( value ) );
-}
+namespace Catch {
 
-std::string toString( const wchar_t* const value )
-{
-	return value ? Catch::toString( std::wstring(value) ) : std::string( "{null string}" );
-}
+    template<typename WriterF, std::size_t bufferSize=256>
+    class StreamBufImpl : public StreamBufBase {
+        char data[bufferSize];
+        WriterF m_writer;
 
-std::string toString( wchar_t* const value )
-{
-	return Catch::toString( static_cast<const wchar_t*>( value ) );
-}
+    public:
+        StreamBufImpl() {
+            setp( data, data + sizeof(data) );
+        }
 
-std::string toString( int value ) {
-    std::ostringstream oss;
-    oss << value;
-    if( value > Detail::hexThreshold )
-        oss << " (0x" << std::hex << value << ")";
-    return oss.str();
-}
+        ~StreamBufImpl() noexcept {
+            StreamBufImpl::sync();
+        }
 
-std::string toString( unsigned long value ) {
-    std::ostringstream oss;
-    oss << value;
-    if( value > Detail::hexThreshold )
-        oss << " (0x" << std::hex << value << ")";
-    return oss.str();
-}
+    private:
+        int overflow( int c ) override {
+            sync();
 
-std::string toString( unsigned int value ) {
-    return Catch::toString( static_cast<unsigned long>( value ) );
-}
+            if( c != EOF ) {
+                if( pbase() == epptr() )
+                    m_writer( std::string( 1, static_cast<char>( c ) ) );
+                else
+                    sputc( static_cast<char>( c ) );
+            }
+            return 0;
+        }
 
-template<typename T>
-std::string fpToString( T value, int precision ) {
-    std::ostringstream oss;
-    oss << std::setprecision( precision )
-        << std::fixed
-        << value;
-    std::string d = oss.str();
-    std::size_t i = d.find_last_not_of( '0' );
-    if( i != std::string::npos && i != d.size()-1 ) {
-        if( d[i] == '.' )
-            i++;
-        d = d.substr( 0, i+1 );
+        int sync() override {
+            if( pbase() != pptr() ) {
+                m_writer( std::string( pbase(), static_cast<std::string::size_type>( pptr() - pbase() ) ) );
+                setp( pbase(), epptr() );
+            }
+            return 0;
+        }
+    };
+
+    ///////////////////////////////////////////////////////////////////////////
+
+    Catch::IStream::~IStream() = default;
+
+    FileStream::FileStream( std::string const& filename ) {
+        m_ofs.open( filename.c_str() );
+        CATCH_ENFORCE( !m_ofs.fail(), "Unable to open file: '" << filename << "'" );
     }
-    return d;
-}
 
-std::string toString( const double value ) {
-    return fpToString( value, 10 );
-}
-std::string toString( const float value ) {
-    return fpToString( value, 5 ) + "f";
-}
+    std::ostream& FileStream::stream() const {
+        return m_ofs;
+    }
 
-std::string toString( bool value ) {
-    return value ? "true" : "false";
-}
+    struct OutputDebugWriter {
 
-std::string toString( char value ) {
-    return value < ' '
-        ? toString( static_cast<unsigned int>( value ) )
-        : Detail::makeString( value );
-}
+        void operator()( std::string const&str ) {
+            writeToDebugConsole( str );
+        }
+    };
 
-std::string toString( signed char value ) {
-    return toString( static_cast<char>( value ) );
-}
+    DebugOutStream::DebugOutStream()
+    :   m_streamBuf( new StreamBufImpl<OutputDebugWriter>() ),
+        m_os( m_streamBuf.get() )
+    {}
 
-std::string toString( unsigned char value ) {
-    return toString( static_cast<char>( value ) );
-}
+    std::ostream& DebugOutStream::stream() const {
+        return m_os;
+    }
 
-#ifdef CATCH_CONFIG_CPP11_LONG_LONG
-std::string toString( long long value ) {
-    std::ostringstream oss;
-    oss << value;
-    if( value > Detail::hexThreshold )
-        oss << " (0x" << std::hex << value << ")";
-    return oss.str();
-}
-std::string toString( unsigned long long value ) {
-    std::ostringstream oss;
-    oss << value;
-    if( value > Detail::hexThreshold )
-        oss << " (0x" << std::hex << value << ")";
-    return oss.str();
-}
-#endif
+    // Store the streambuf from cout up-front because
+    // cout may get redirected when running tests
+    CoutStream::CoutStream()
+    :   m_os( Catch::cout().rdbuf() )
+    {}
 
-#ifdef CATCH_CONFIG_CPP11_NULLPTR
-std::string toString( std::nullptr_t ) {
-    return "nullptr";
-}
-#endif
+    std::ostream& CoutStream::stream() const {
+        return m_os;
+    }
 
-#ifdef __OBJC__
-    std::string toString( NSString const * const& nsstring ) {
-        if( !nsstring )
-            return "nil";
-        return "@" + toString([nsstring UTF8String]);
+#ifndef CATCH_CONFIG_NOSTDOUT // If you #define this you must implement these functions
+    std::ostream& cout() {
+        return std::cout;
     }
-    std::string toString( NSString * CATCH_ARC_STRONG const& nsstring ) {
-        if( !nsstring )
-            return "nil";
-        return "@" + toString([nsstring UTF8String]);
+    std::ostream& cerr() {
+        return std::cerr;
     }
-    std::string toString( NSObject* const& nsObject ) {
-        return toString( [nsObject description] );
+    std::ostream& clog() {
+        return std::clog;
     }
 #endif
+}
+// end catch_stream.cpp
+// start catch_streambuf.cpp
 
-} // end namespace Catch
+namespace Catch {
+    StreamBufBase::~StreamBufBase() = default;
+}
+// end catch_streambuf.cpp
+// start catch_string_manip.cpp
 
-// #included from: catch_result_builder.hpp
-#define TWOBLUECUBES_CATCH_RESULT_BUILDER_HPP_INCLUDED
+#include <algorithm>
+#include <ostream>
+#include <cstring>
+#include <cctype>
 
 namespace Catch {
 
-    std::string capturedExpressionWithSecondArgument( std::string const& capturedExpression, std::string const& secondArg ) {
-        return secondArg.empty() || secondArg == "\"\""
-            ? capturedExpression
-            : capturedExpression + ", " + secondArg;
+    bool startsWith( std::string const& s, std::string const& prefix ) {
+        return s.size() >= prefix.size() && std::equal(prefix.begin(), prefix.end(), s.begin());
     }
-    ResultBuilder::ResultBuilder(   char const* macroName,
-                                    SourceLineInfo const& lineInfo,
-                                    char const* capturedExpression,
-                                    ResultDisposition::Flags resultDisposition,
-                                    char const* secondArg )
-    :   m_assertionInfo( macroName, lineInfo, capturedExpressionWithSecondArgument( capturedExpression, secondArg ), resultDisposition ),
-        m_shouldDebugBreak( false ),
-        m_shouldThrow( false )
-    {}
-
-    ResultBuilder& ResultBuilder::setResultType( ResultWas::OfType result ) {
-        m_data.resultType = result;
-        return *this;
+    bool startsWith( std::string const& s, char prefix ) {
+        return !s.empty() && s[0] == prefix;
     }
-    ResultBuilder& ResultBuilder::setResultType( bool result ) {
-        m_data.resultType = result ? ResultWas::Ok : ResultWas::ExpressionFailed;
-        return *this;
+    bool endsWith( std::string const& s, std::string const& suffix ) {
+        return s.size() >= suffix.size() && std::equal(suffix.rbegin(), suffix.rend(), s.rbegin());
     }
-    ResultBuilder& ResultBuilder::setLhs( std::string const& lhs ) {
-        m_exprComponents.lhs = lhs;
-        return *this;
+    bool endsWith( std::string const& s, char suffix ) {
+        return !s.empty() && s[s.size()-1] == suffix;
     }
-    ResultBuilder& ResultBuilder::setRhs( std::string const& rhs ) {
-        m_exprComponents.rhs = rhs;
-        return *this;
+    bool contains( std::string const& s, std::string const& infix ) {
+        return s.find( infix ) != std::string::npos;
     }
-    ResultBuilder& ResultBuilder::setOp( std::string const& op ) {
-        m_exprComponents.op = op;
-        return *this;
+    char toLowerCh(char c) {
+        return static_cast<char>( std::tolower( c ) );
     }
+    void toLowerInPlace( std::string& s ) {
+        std::transform( s.begin(), s.end(), s.begin(), toLowerCh );
+    }
+    std::string toLower( std::string const& s ) {
+        std::string lc = s;
+        toLowerInPlace( lc );
+        return lc;
+    }
+    std::string trim( std::string const& str ) {
+        static char const* whitespaceChars = "\n\r\t ";
+        std::string::size_type start = str.find_first_not_of( whitespaceChars );
+        std::string::size_type end = str.find_last_not_of( whitespaceChars );
 
-    void ResultBuilder::endExpression() {
-        m_exprComponents.testFalse = isFalseTest( m_assertionInfo.resultDisposition );
-        captureExpression();
+        return start != std::string::npos ? str.substr( start, 1+end-start ) : std::string();
     }
 
-    void ResultBuilder::useActiveException( ResultDisposition::Flags resultDisposition ) {
-        m_assertionInfo.resultDisposition = resultDisposition;
-        m_stream.oss << Catch::translateActiveException();
-        captureResult( ResultWas::ThrewException );
+    bool replaceInPlace( std::string& str, std::string const& replaceThis, std::string const& withThis ) {
+        bool replaced = false;
+        std::size_t i = str.find( replaceThis );
+        while( i != std::string::npos ) {
+            replaced = true;
+            str = str.substr( 0, i ) + withThis + str.substr( i+replaceThis.size() );
+            if( i < str.size()-withThis.size() )
+                i = str.find( replaceThis, i+withThis.size() );
+            else
+                i = std::string::npos;
+        }
+        return replaced;
     }
 
-    void ResultBuilder::captureResult( ResultWas::OfType resultType ) {
-        setResultType( resultType );
-        captureExpression();
+    pluralise::pluralise( std::size_t count, std::string const& label )
+    :   m_count( count ),
+        m_label( label )
+    {}
+
+    std::ostream& operator << ( std::ostream& os, pluralise const& pluraliser ) {
+        os << pluraliser.m_count << ' ' << pluraliser.m_label;
+        if( pluraliser.m_count != 1 )
+            os << 's';
+        return os;
     }
-    void ResultBuilder::captureExpectedException( std::string const& expectedMessage ) {
-        if( expectedMessage.empty() )
-            captureExpectedException( Matchers::Impl::Generic::AllOf<std::string>() );
-        else
-            captureExpectedException( Matchers::Equals( expectedMessage ) );
+
+}
+// end catch_string_manip.cpp
+// start catch_stringref.cpp
+
+#if defined(__clang__)
+#    pragma clang diagnostic push
+#    pragma clang diagnostic ignored "-Wexit-time-destructors"
+#endif
+
+#include <ostream>
+#include <cassert>
+#include <cstring>
+
+namespace Catch {
+
+    auto getEmptyStringRef() -> StringRef {
+        static StringRef s_emptyStringRef("");
+        return s_emptyStringRef;
     }
 
-    void ResultBuilder::captureExpectedException( Matchers::Impl::Matcher<std::string> const& matcher ) {
+    StringRef::StringRef() noexcept
+    :   StringRef( getEmptyStringRef() )
+    {}
 
-        assert( m_exprComponents.testFalse == false );
-        AssertionResultData data = m_data;
-        data.resultType = ResultWas::Ok;
-        data.reconstructedExpression = m_assertionInfo.capturedExpression;
+    StringRef::StringRef( StringRef const& other ) noexcept
+    :   m_start( other.m_start ),
+        m_size( other.m_size )
+    {}
 
-        std::string actualMessage = Catch::translateActiveException();
-        if( !matcher.match( actualMessage ) ) {
-            data.resultType = ResultWas::ExpressionFailed;
-            data.reconstructedExpression = actualMessage;
-        }
-        AssertionResult result( m_assertionInfo, data );
-        handleResult( result );
+    StringRef::StringRef( StringRef&& other ) noexcept
+    :   m_start( other.m_start ),
+        m_size( other.m_size ),
+        m_data( other.m_data )
+    {
+        other.m_data = nullptr;
     }
 
-    void ResultBuilder::captureExpression() {
-        AssertionResult result = build();
-        handleResult( result );
+    StringRef::StringRef( char const* rawChars ) noexcept
+    :   m_start( rawChars ),
+        m_size( static_cast<size_type>( std::strlen( rawChars ) ) )
+    {
+        assert( rawChars != nullptr );
     }
-    void ResultBuilder::handleResult( AssertionResult const& result )
+
+    StringRef::StringRef( char const* rawChars, size_type size ) noexcept
+    :   m_start( rawChars ),
+        m_size( size )
     {
-        getResultCapture().assertionEnded( result );
+        size_type rawSize = rawChars == nullptr ? 0 : static_cast<size_type>( std::strlen( rawChars ) );
+        if( rawSize < size )
+            m_size = rawSize;
+    }
 
-        if( !result.isOk() ) {
-            if( getCurrentContext().getConfig()->shouldDebugBreak() )
-                m_shouldDebugBreak = true;
-            if( getCurrentContext().getRunner()->aborting() || (m_assertionInfo.resultDisposition & ResultDisposition::Normal) )
-                m_shouldThrow = true;
-        }
+    StringRef::StringRef( std::string const& stdString ) noexcept
+    :   m_start( stdString.c_str() ),
+        m_size( stdString.size() )
+    {}
+
+    StringRef::~StringRef() noexcept {
+        delete[] m_data;
     }
-    void ResultBuilder::react() {
-        if( m_shouldThrow )
-            throw Catch::TestFailureException();
+
+    auto StringRef::operator = ( StringRef other ) noexcept -> StringRef& {
+        swap( other );
+        return *this;
+    }
+    StringRef::operator std::string() const {
+        return std::string( m_start, m_size );
     }
 
-    bool ResultBuilder::shouldDebugBreak() const { return m_shouldDebugBreak; }
-    bool ResultBuilder::allowThrows() const { return getCurrentContext().getConfig()->allowThrows(); }
+    void StringRef::swap( StringRef& other ) noexcept {
+        std::swap( m_start, other.m_start );
+        std::swap( m_size, other.m_size );
+        std::swap( m_data, other.m_data );
+    }
 
-    AssertionResult ResultBuilder::build() const
-    {
-        assert( m_data.resultType != ResultWas::Unknown );
+    auto StringRef::c_str() const -> char const* {
+        if( isSubstring() )
+           const_cast<StringRef*>( this )->takeOwnership();
+        return m_start;
+    }
+    auto StringRef::data() const noexcept -> char const* {
+        return m_start;
+    }
 
-        AssertionResultData data = m_data;
+    auto StringRef::isOwned() const noexcept -> bool {
+        return m_data != nullptr;
+    }
+    auto StringRef::isSubstring() const noexcept -> bool {
+        return m_start[m_size] != '\0';
+    }
 
-        // Flip bool results if testFalse is set
-        if( m_exprComponents.testFalse ) {
-            if( data.resultType == ResultWas::Ok )
-                data.resultType = ResultWas::ExpressionFailed;
-            else if( data.resultType == ResultWas::ExpressionFailed )
-                data.resultType = ResultWas::Ok;
+    void StringRef::takeOwnership() {
+        if( !isOwned() ) {
+            m_data = new char[m_size+1];
+            memcpy( m_data, m_start, m_size );
+            m_data[m_size] = '\0';
+            m_start = m_data;
         }
+    }
+    auto StringRef::substr( size_type start, size_type size ) const noexcept -> StringRef {
+        if( start < m_size )
+            return StringRef( m_start+start, size );
+        else
+            return StringRef();
+    }
+    auto StringRef::operator == ( StringRef const& other ) const noexcept -> bool {
+        return
+            size() == other.size() &&
+            (std::strncmp( m_start, other.m_start, size() ) == 0);
+    }
+    auto StringRef::operator != ( StringRef const& other ) const noexcept -> bool {
+        return !operator==( other );
+    }
 
-        data.message = m_stream.oss.str();
-        data.reconstructedExpression = reconstructExpression();
-        if( m_exprComponents.testFalse ) {
-            if( m_exprComponents.op == "" )
-                data.reconstructedExpression = "!" + data.reconstructedExpression;
-            else
-                data.reconstructedExpression = "!(" + data.reconstructedExpression + ")";
-        }
-        return AssertionResult( m_assertionInfo, data );
-    }
-    std::string ResultBuilder::reconstructExpression() const {
-        if( m_exprComponents.op == "" )
-            return m_exprComponents.lhs.empty() ? m_assertionInfo.capturedExpression : m_exprComponents.op + m_exprComponents.lhs;
-        else if( m_exprComponents.op == "matches" )
-            return m_exprComponents.lhs + " " + m_exprComponents.rhs;
-        else if( m_exprComponents.op != "!" ) {
-            if( m_exprComponents.lhs.size() + m_exprComponents.rhs.size() < 40 &&
-                m_exprComponents.lhs.find("\n") == std::string::npos &&
-                m_exprComponents.rhs.find("\n") == std::string::npos )
-                return m_exprComponents.lhs + " " + m_exprComponents.op + " " + m_exprComponents.rhs;
-            else
-                return m_exprComponents.lhs + "\n" + m_exprComponents.op + "\n" + m_exprComponents.rhs;
+    auto StringRef::operator[](size_type index) const noexcept -> char {
+        return m_start[index];
+    }
+
+    auto StringRef::empty() const noexcept -> bool {
+        return m_size == 0;
+    }
+
+    auto StringRef::size() const noexcept -> size_type {
+        return m_size;
+    }
+    auto StringRef::numberOfCharacters() const noexcept -> size_type {
+        size_type noChars = m_size;
+        // Make adjustments for uft encodings
+        for( size_type i=0; i < m_size; ++i ) {
+            char c = m_start[i];
+            if( ( c & 0b11000000 ) == 0b11000000 ) {
+                if( ( c & 0b11100000 ) == 0b11000000 )
+                    noChars--;
+                else if( ( c & 0b11110000 ) == 0b11100000 )
+                    noChars-=2;
+                else if( ( c & 0b11111000 ) == 0b11110000 )
+                    noChars-=3;
+            }
         }
-        else
-            return "{can't expand - use " + m_assertionInfo.macroName + "_FALSE( " + m_assertionInfo.capturedExpression.substr(1) + " ) instead of " + m_assertionInfo.macroName + "( " + m_assertionInfo.capturedExpression + " ) for better diagnostics}";
+        return noChars;
     }
 
-} // end namespace Catch
+    auto operator + ( StringRef const& lhs, StringRef const& rhs ) -> std::string {
+        std::string str;
+        str.reserve( lhs.size() + rhs.size() );
+        str += lhs;
+        str += rhs;
+        return str;
+    }
+    auto operator + ( StringRef const& lhs, const char* rhs ) -> std::string {
+        return std::string( lhs ) + std::string( rhs );
+    }
+    auto operator + ( char const* lhs, StringRef const& rhs ) -> std::string {
+        return std::string( lhs ) + std::string( rhs );
+    }
 
-// #included from: catch_tag_alias_registry.hpp
-#define TWOBLUECUBES_CATCH_TAG_ALIAS_REGISTRY_HPP_INCLUDED
+    auto operator << ( std::ostream& os, StringRef const& str ) -> std::ostream& {
+        return os << str.c_str();
+    }
 
-// #included from: catch_tag_alias_registry.h
-#define TWOBLUECUBES_CATCH_TAG_ALIAS_REGISTRY_H_INCLUDED
+} // namespace Catch
 
-#include <map>
+#if defined(__clang__)
+#    pragma clang diagnostic pop
+#endif
+// end catch_stringref.cpp
+// start catch_tag_alias.cpp
 
 namespace Catch {
+    TagAlias::TagAlias(std::string const & _tag, SourceLineInfo _lineInfo): tag(_tag), lineInfo(_lineInfo) {}
+}
+// end catch_tag_alias.cpp
+// start catch_tag_alias_autoregistrar.cpp
 
-    class TagAliasRegistry : public ITagAliasRegistry {
-    public:
-        virtual ~TagAliasRegistry();
-        virtual Option<TagAlias> find( std::string const& alias ) const;
-        virtual std::string expandAliases( std::string const& unexpandedTestSpec ) const;
-        void add( char const* alias, char const* tag, SourceLineInfo const& lineInfo );
-        static TagAliasRegistry& get();
-
-    private:
-        std::map<std::string, TagAlias> m_registry;
-    };
+namespace Catch {
 
-} // end namespace Catch
+    RegistrarForTagAliases::RegistrarForTagAliases(char const* alias, char const* tag, SourceLineInfo const& lineInfo) {
+        try {
+            getMutableRegistryHub().registerTagAlias(alias, tag, lineInfo);
+        } catch (...) {
+            // Do not throw when constructing global objects, instead register the exception to be processed later
+            getMutableRegistryHub().registerStartupException();
+        }
+    }
 
-#include <map>
-#include <iostream>
+}
+// end catch_tag_alias_autoregistrar.cpp
+// start catch_tag_alias_registry.cpp
 
 namespace Catch {
 
     TagAliasRegistry::~TagAliasRegistry() {}
 
-    Option<TagAlias> TagAliasRegistry::find( std::string const& alias ) const {
-        std::map<std::string, TagAlias>::const_iterator it = m_registry.find( alias );
+    TagAlias const* TagAliasRegistry::find( std::string const& alias ) const {
+        auto it = m_registry.find( alias );
         if( it != m_registry.end() )
-            return it->second;
+            return &(it->second);
         else
-            return Option<TagAlias>();
+            return nullptr;
     }
 
     std::string TagAliasRegistry::expandAliases( std::string const& unexpandedTestSpec ) const {
         std::string expandedTestSpec = unexpandedTestSpec;
-        for( std::map<std::string, TagAlias>::const_iterator it = m_registry.begin(), itEnd = m_registry.end();
-                it != itEnd;
-                ++it ) {
-            std::size_t pos = expandedTestSpec.find( it->first );
+        for( auto const& registryKvp : m_registry ) {
+            std::size_t pos = expandedTestSpec.find( registryKvp.first );
             if( pos != std::string::npos ) {
                 expandedTestSpec =  expandedTestSpec.substr( 0, pos ) +
-                                    it->second.tag +
-                                    expandedTestSpec.substr( pos + it->first.size() );
+                                    registryKvp.second.tag +
+                                    expandedTestSpec.substr( pos + registryKvp.first.size() );
             }
         }
         return expandedTestSpec;
     }
 
-    void TagAliasRegistry::add( char const* alias, char const* tag, SourceLineInfo const& lineInfo ) {
+    void TagAliasRegistry::add( std::string const& alias, std::string const& tag, SourceLineInfo const& lineInfo ) {
+        CATCH_ENFORCE( startsWith(alias, "[@") && endsWith(alias, ']'),
+                      "error: tag alias, '" << alias << "' is not of the form [@alias name].\n" << lineInfo );
 
-        if( !startsWith( alias, "[@" ) || !endsWith( alias, "]" ) ) {
-            std::ostringstream oss;
-            oss << "error: tag alias, \"" << alias << "\" is not of the form [@alias name].\n" << lineInfo;
-            throw std::domain_error( oss.str().c_str() );
+        CATCH_ENFORCE( m_registry.insert(std::make_pair(alias, TagAlias(tag, lineInfo))).second,
+                      "error: tag alias, '" << alias << "' already registered.\n"
+                      << "\tFirst seen at: " << find(alias)->lineInfo << "\n"
+                      << "\tRedefined at: " << lineInfo );
+    }
+
+    ITagAliasRegistry::~ITagAliasRegistry() {}
+
+    ITagAliasRegistry const& ITagAliasRegistry::get() {
+        return getRegistryHub().getTagAliasRegistry();
+    }
+
+} // end namespace Catch
+// end catch_tag_alias_registry.cpp
+// start catch_test_case_info.cpp
+
+#include <cctype>
+#include <exception>
+#include <algorithm>
+
+namespace Catch {
+
+    TestCaseInfo::SpecialProperties parseSpecialTag( std::string const& tag ) {
+        if( startsWith( tag, '.' ) ||
+            tag == "!hide" )
+            return TestCaseInfo::IsHidden;
+        else if( tag == "!throws" )
+            return TestCaseInfo::Throws;
+        else if( tag == "!shouldfail" )
+            return TestCaseInfo::ShouldFail;
+        else if( tag == "!mayfail" )
+            return TestCaseInfo::MayFail;
+        else if( tag == "!nonportable" )
+            return TestCaseInfo::NonPortable;
+        else if( tag == "!benchmark" )
+            return static_cast<TestCaseInfo::SpecialProperties>( TestCaseInfo::Benchmark | TestCaseInfo::IsHidden );
+        else
+            return TestCaseInfo::None;
+    }
+    bool isReservedTag( std::string const& tag ) {
+        return parseSpecialTag( tag ) == TestCaseInfo::None && tag.size() > 0 && !std::isalnum( tag[0] );
+    }
+    void enforceNotReservedTag( std::string const& tag, SourceLineInfo const& _lineInfo ) {
+        CATCH_ENFORCE( !isReservedTag(tag),
+                      "Tag name: [" << tag << "] is not allowed.\n"
+                      << "Tag names starting with non alpha-numeric characters are reserved\n"
+                      << _lineInfo );
+    }
+
+    TestCase makeTestCase(  ITestInvoker* _testCase,
+                            std::string const& _className,
+                            std::string const& _name,
+                            std::string const& _descOrTags,
+                            SourceLineInfo const& _lineInfo )
+    {
+        bool isHidden = false;
+
+        // Parse out tags
+        std::vector<std::string> tags;
+        std::string desc, tag;
+        bool inTag = false;
+        for (char c : _descOrTags) {
+            if( !inTag ) {
+                if( c == '[' )
+                    inTag = true;
+                else
+                    desc += c;
+            }
+            else {
+                if( c == ']' ) {
+                    TestCaseInfo::SpecialProperties prop = parseSpecialTag( tag );
+                    if( ( prop & TestCaseInfo::IsHidden ) != 0 )
+                        isHidden = true;
+                    else if( prop == TestCaseInfo::None )
+                        enforceNotReservedTag( tag, _lineInfo );
+
+                    tags.push_back( tag );
+                    tag.clear();
+                    inTag = false;
+                }
+                else
+                    tag += c;
+            }
         }
-        if( !m_registry.insert( std::make_pair( alias, TagAlias( tag, lineInfo ) ) ).second ) {
-            std::ostringstream oss;
-            oss << "error: tag alias, \"" << alias << "\" already registered.\n"
-                << "\tFirst seen at " << find(alias)->lineInfo << "\n"
-                << "\tRedefined at " << lineInfo;
-            throw std::domain_error( oss.str().c_str() );
+        if( isHidden ) {
+            tags.push_back( "." );
         }
+
+        TestCaseInfo info( _name, _className, desc, tags, _lineInfo );
+        return TestCase( _testCase, info );
     }
 
-    TagAliasRegistry& TagAliasRegistry::get() {
-        static TagAliasRegistry instance;
-        return instance;
+    void setTags( TestCaseInfo& testCaseInfo, std::vector<std::string> tags ) {
+        std::sort(begin(tags), end(tags));
+        tags.erase(std::unique(begin(tags), end(tags)), end(tags));
+        testCaseInfo.lcaseTags.clear();
 
+        for( auto const& tag : tags ) {
+            std::string lcaseTag = toLower( tag );
+            testCaseInfo.properties = static_cast<TestCaseInfo::SpecialProperties>( testCaseInfo.properties | parseSpecialTag( lcaseTag ) );
+            testCaseInfo.lcaseTags.push_back( lcaseTag );
+        }
+        testCaseInfo.tags = std::move(tags);
     }
 
-    ITagAliasRegistry::~ITagAliasRegistry() {}
-    ITagAliasRegistry const& ITagAliasRegistry::get() { return TagAliasRegistry::get(); }
+    TestCaseInfo::TestCaseInfo( std::string const& _name,
+                                std::string const& _className,
+                                std::string const& _description,
+                                std::vector<std::string> const& _tags,
+                                SourceLineInfo const& _lineInfo )
+    :   name( _name ),
+        className( _className ),
+        description( _description ),
+        lineInfo( _lineInfo ),
+        properties( None )
+    {
+        setTags( *this, _tags );
+    }
 
-    RegistrarForTagAliases::RegistrarForTagAliases( char const* alias, char const* tag, SourceLineInfo const& lineInfo ) {
-        try {
-            TagAliasRegistry::get().add( alias, tag, lineInfo );
+    bool TestCaseInfo::isHidden() const {
+        return ( properties & IsHidden ) != 0;
+    }
+    bool TestCaseInfo::throws() const {
+        return ( properties & Throws ) != 0;
+    }
+    bool TestCaseInfo::okToFail() const {
+        return ( properties & (ShouldFail | MayFail ) ) != 0;
+    }
+    bool TestCaseInfo::expectedToFail() const {
+        return ( properties & (ShouldFail ) ) != 0;
+    }
+
+    std::string TestCaseInfo::tagsAsString() const {
+        std::string ret;
+        // '[' and ']' per tag
+        std::size_t full_size = 2 * tags.size();
+        for (const auto& tag : tags) {
+            full_size += tag.size();
         }
-        catch( std::exception& ex ) {
-            Colour colourGuard( Colour::Red );
-            Catch::cerr() << ex.what() << std::endl;
-            exit(1);
+        ret.reserve(full_size);
+        for (const auto& tag : tags) {
+            ret.push_back('[');
+            ret.append(tag);
+            ret.push_back(']');
         }
+
+        return ret;
+    }
+
+    TestCase::TestCase( ITestInvoker* testCase, TestCaseInfo const& info ) : TestCaseInfo( info ), test( testCase ) {}
+
+    TestCase TestCase::withName( std::string const& _newName ) const {
+        TestCase other( *this );
+        other.name = _newName;
+        return other;
+    }
+
+    void TestCase::invoke() const {
+        test->invoke();
+    }
+
+    bool TestCase::operator == ( TestCase const& other ) const {
+        return  test.get() == other.test.get() &&
+                name == other.name &&
+                className == other.className;
+    }
+
+    bool TestCase::operator < ( TestCase const& other ) const {
+        return name < other.name;
+    }
+
+    TestCaseInfo const& TestCase::getTestCaseInfo() const
+    {
+        return *this;
     }
 
 } // end namespace Catch
+// end catch_test_case_info.cpp
+// start catch_test_case_registry_impl.cpp
 
-// #included from: ../reporters/catch_reporter_multi.hpp
-#define TWOBLUECUBES_CATCH_REPORTER_MULTI_HPP_INCLUDED
+#include <sstream>
 
 namespace Catch {
 
-class MultipleReporters : public SharedImpl<IStreamingReporter> {
-    typedef std::vector<Ptr<IStreamingReporter> > Reporters;
-    Reporters m_reporters;
+    std::vector<TestCase> sortTests( IConfig const& config, std::vector<TestCase> const& unsortedTestCases ) {
 
-public:
-    void add( Ptr<IStreamingReporter> const& reporter ) {
-        m_reporters.push_back( reporter );
-    }
+        std::vector<TestCase> sorted = unsortedTestCases;
 
-public: // IStreamingReporter
+        switch( config.runOrder() ) {
+            case RunTests::InLexicographicalOrder:
+                std::sort( sorted.begin(), sorted.end() );
+                break;
+            case RunTests::InRandomOrder:
+                seedRng( config );
+                RandomNumberGenerator::shuffle( sorted );
+                break;
+            case RunTests::InDeclarationOrder:
+                // already in declaration order
+                break;
+        }
+        return sorted;
+    }
+    bool matchTest( TestCase const& testCase, TestSpec const& testSpec, IConfig const& config ) {
+        return testSpec.matches( testCase ) && ( config.allowThrows() || !testCase.throws() );
+    }
 
-    virtual ReporterPreferences getPreferences() const CATCH_OVERRIDE {
-        return m_reporters[0]->getPreferences();
+    void enforceNoDuplicateTestCases( std::vector<TestCase> const& functions ) {
+        std::set<TestCase> seenFunctions;
+        for( auto const& function : functions ) {
+            auto prev = seenFunctions.insert( function );
+            CATCH_ENFORCE( prev.second,
+                    "error: TEST_CASE( \"" << function.name << "\" ) already defined.\n"
+                    << "\tFirst seen at " << prev.first->getTestCaseInfo().lineInfo << "\n"
+                    << "\tRedefined at " << function.getTestCaseInfo().lineInfo );
+        }
     }
 
-    virtual void noMatchingTestCases( std::string const& spec ) CATCH_OVERRIDE {
-        for( Reporters::const_iterator it = m_reporters.begin(), itEnd = m_reporters.end();
-                it != itEnd;
-                ++it )
-            (*it)->noMatchingTestCases( spec );
+    std::vector<TestCase> filterTests( std::vector<TestCase> const& testCases, TestSpec const& testSpec, IConfig const& config ) {
+        std::vector<TestCase> filtered;
+        filtered.reserve( testCases.size() );
+        for( auto const& testCase : testCases )
+            if( matchTest( testCase, testSpec, config ) )
+                filtered.push_back( testCase );
+        return filtered;
+    }
+    std::vector<TestCase> const& getAllTestCasesSorted( IConfig const& config ) {
+        return getRegistryHub().getTestCaseRegistry().getAllTestsSorted( config );
     }
 
-    virtual void testRunStarting( TestRunInfo const& testRunInfo ) CATCH_OVERRIDE {
-        for( Reporters::const_iterator it = m_reporters.begin(), itEnd = m_reporters.end();
-                it != itEnd;
-                ++it )
-            (*it)->testRunStarting( testRunInfo );
+    void TestRegistry::registerTest( TestCase const& testCase ) {
+        std::string name = testCase.getTestCaseInfo().name;
+        if( name.empty() ) {
+            std::ostringstream oss;
+            oss << "Anonymous test case " << ++m_unnamedCount;
+            return registerTest( testCase.withName( oss.str() ) );
+        }
+        m_functions.push_back( testCase );
     }
 
-    virtual void testGroupStarting( GroupInfo const& groupInfo ) CATCH_OVERRIDE {
-        for( Reporters::const_iterator it = m_reporters.begin(), itEnd = m_reporters.end();
-                it != itEnd;
-                ++it )
-            (*it)->testGroupStarting( groupInfo );
+    std::vector<TestCase> const& TestRegistry::getAllTests() const {
+        return m_functions;
     }
+    std::vector<TestCase> const& TestRegistry::getAllTestsSorted( IConfig const& config ) const {
+        if( m_sortedFunctions.empty() )
+            enforceNoDuplicateTestCases( m_functions );
 
-    virtual void testCaseStarting( TestCaseInfo const& testInfo ) CATCH_OVERRIDE {
-        for( Reporters::const_iterator it = m_reporters.begin(), itEnd = m_reporters.end();
-                it != itEnd;
-                ++it )
-            (*it)->testCaseStarting( testInfo );
+        if(  m_currentSortOrder != config.runOrder() || m_sortedFunctions.empty() ) {
+            m_sortedFunctions = sortTests( config, m_functions );
+            m_currentSortOrder = config.runOrder();
+        }
+        return m_sortedFunctions;
     }
 
-    virtual void sectionStarting( SectionInfo const& sectionInfo ) CATCH_OVERRIDE {
-        for( Reporters::const_iterator it = m_reporters.begin(), itEnd = m_reporters.end();
-                it != itEnd;
-                ++it )
-            (*it)->sectionStarting( sectionInfo );
+    ///////////////////////////////////////////////////////////////////////////
+    TestInvokerAsFunction::TestInvokerAsFunction( void(*testAsFunction)() ) noexcept : m_testAsFunction( testAsFunction ) {}
+
+    void TestInvokerAsFunction::invoke() const {
+        m_testAsFunction();
     }
 
-    virtual void assertionStarting( AssertionInfo const& assertionInfo ) CATCH_OVERRIDE {
-        for( Reporters::const_iterator it = m_reporters.begin(), itEnd = m_reporters.end();
-                it != itEnd;
-                ++it )
-            (*it)->assertionStarting( assertionInfo );
+    std::string extractClassName( std::string const& classOrQualifiedMethodName ) {
+        std::string className = classOrQualifiedMethodName;
+        if( startsWith( className, '&' ) )
+        {
+            std::size_t lastColons = className.rfind( "::" );
+            std::size_t penultimateColons = className.rfind( "::", lastColons-1 );
+            if( penultimateColons == std::string::npos )
+                penultimateColons = 1;
+            className = className.substr( penultimateColons, lastColons-penultimateColons );
+        }
+        return className;
     }
 
-    // The return value indicates if the messages buffer should be cleared:
-    virtual bool assertionEnded( AssertionStats const& assertionStats ) CATCH_OVERRIDE {
-        bool clearBuffer = false;
-        for( Reporters::const_iterator it = m_reporters.begin(), itEnd = m_reporters.end();
-                it != itEnd;
-                ++it )
-            clearBuffer |= (*it)->assertionEnded( assertionStats );
-        return clearBuffer;
+} // end namespace Catch
+// end catch_test_case_registry_impl.cpp
+// start catch_test_case_tracker.cpp
+
+#include <algorithm>
+#include <assert.h>
+#include <stdexcept>
+#include <memory>
+
+#if defined(__clang__)
+#    pragma clang diagnostic push
+#    pragma clang diagnostic ignored "-Wexit-time-destructors"
+#endif
+
+namespace Catch {
+namespace TestCaseTracking {
+
+    NameAndLocation::NameAndLocation( std::string const& _name, SourceLineInfo const& _location )
+    :   name( _name ),
+        location( _location )
+    {}
+
+    ITracker::~ITracker() = default;
+
+    TrackerContext& TrackerContext::instance() {
+        static TrackerContext s_instance;
+        return s_instance;
     }
 
-    virtual void sectionEnded( SectionStats const& sectionStats ) CATCH_OVERRIDE {
-        for( Reporters::const_iterator it = m_reporters.begin(), itEnd = m_reporters.end();
-                it != itEnd;
-                ++it )
-            (*it)->sectionEnded( sectionStats );
+    ITracker& TrackerContext::startRun() {
+        m_rootTracker = std::make_shared<SectionTracker>( NameAndLocation( "{root}", CATCH_INTERNAL_LINEINFO ), *this, nullptr );
+        m_currentTracker = nullptr;
+        m_runState = Executing;
+        return *m_rootTracker;
     }
 
-    virtual void testCaseEnded( TestCaseStats const& testCaseStats ) CATCH_OVERRIDE {
-        for( Reporters::const_iterator it = m_reporters.begin(), itEnd = m_reporters.end();
-                it != itEnd;
-                ++it )
-            (*it)->testCaseEnded( testCaseStats );
+    void TrackerContext::endRun() {
+        m_rootTracker.reset();
+        m_currentTracker = nullptr;
+        m_runState = NotStarted;
     }
 
-    virtual void testGroupEnded( TestGroupStats const& testGroupStats ) CATCH_OVERRIDE {
-        for( Reporters::const_iterator it = m_reporters.begin(), itEnd = m_reporters.end();
-                it != itEnd;
-                ++it )
-            (*it)->testGroupEnded( testGroupStats );
+    void TrackerContext::startCycle() {
+        m_currentTracker = m_rootTracker.get();
+        m_runState = Executing;
+    }
+    void TrackerContext::completeCycle() {
+        m_runState = CompletedCycle;
     }
 
-    virtual void testRunEnded( TestRunStats const& testRunStats ) CATCH_OVERRIDE {
-        for( Reporters::const_iterator it = m_reporters.begin(), itEnd = m_reporters.end();
-                it != itEnd;
-                ++it )
-            (*it)->testRunEnded( testRunStats );
+    bool TrackerContext::completedCycle() const {
+        return m_runState == CompletedCycle;
+    }
+    ITracker& TrackerContext::currentTracker() {
+        return *m_currentTracker;
+    }
+    void TrackerContext::setCurrentTracker( ITracker* tracker ) {
+        m_currentTracker = tracker;
     }
 
-    virtual void skipTest( TestCaseInfo const& testInfo ) CATCH_OVERRIDE {
-        for( Reporters::const_iterator it = m_reporters.begin(), itEnd = m_reporters.end();
-                it != itEnd;
-                ++it )
-            (*it)->skipTest( testInfo );
+    TrackerBase::TrackerHasName::TrackerHasName( NameAndLocation const& nameAndLocation ) : m_nameAndLocation( nameAndLocation ) {}
+    bool TrackerBase::TrackerHasName::operator ()( ITrackerPtr const& tracker ) const {
+        return
+            tracker->nameAndLocation().name == m_nameAndLocation.name &&
+            tracker->nameAndLocation().location == m_nameAndLocation.location;
     }
 
-    virtual MultipleReporters* tryAsMulti() CATCH_OVERRIDE {
-        return this;
+    TrackerBase::TrackerBase( NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent )
+    :   m_nameAndLocation( nameAndLocation ),
+        m_ctx( ctx ),
+        m_parent( parent )
+    {}
+
+    NameAndLocation const& TrackerBase::nameAndLocation() const {
+        return m_nameAndLocation;
+    }
+    bool TrackerBase::isComplete() const {
+        return m_runState == CompletedSuccessfully || m_runState == Failed;
+    }
+    bool TrackerBase::isSuccessfullyCompleted() const {
+        return m_runState == CompletedSuccessfully;
+    }
+    bool TrackerBase::isOpen() const {
+        return m_runState != NotStarted && !isComplete();
+    }
+    bool TrackerBase::hasChildren() const {
+        return !m_children.empty();
     }
 
-};
+    void TrackerBase::addChild( ITrackerPtr const& child ) {
+        m_children.push_back( child );
+    }
 
-Ptr<IStreamingReporter> addReporter( Ptr<IStreamingReporter> const& existingReporter, Ptr<IStreamingReporter> const& additionalReporter ) {
-    Ptr<IStreamingReporter> resultingReporter;
+    ITrackerPtr TrackerBase::findChild( NameAndLocation const& nameAndLocation ) {
+        auto it = std::find_if( m_children.begin(), m_children.end(), TrackerHasName( nameAndLocation ) );
+        return( it != m_children.end() )
+            ? *it
+            : nullptr;
+    }
+    ITracker& TrackerBase::parent() {
+        assert( m_parent ); // Should always be non-null except for root
+        return *m_parent;
+    }
 
-    if( existingReporter ) {
-        MultipleReporters* multi = existingReporter->tryAsMulti();
-        if( !multi ) {
-            multi = new MultipleReporters;
-            resultingReporter = Ptr<IStreamingReporter>( multi );
-            if( existingReporter )
-                multi->add( existingReporter );
+    void TrackerBase::openChild() {
+        if( m_runState != ExecutingChildren ) {
+            m_runState = ExecutingChildren;
+            if( m_parent )
+                m_parent->openChild();
         }
-        else
-            resultingReporter = existingReporter;
-        multi->add( additionalReporter );
     }
-    else
-        resultingReporter = additionalReporter;
 
-    return resultingReporter;
-}
+    bool TrackerBase::isSectionTracker() const { return false; }
+    bool TrackerBase::isIndexTracker() const { return false; }
 
-} // end namespace Catch
+    void TrackerBase::open() {
+        m_runState = Executing;
+        moveToThis();
+        if( m_parent )
+            m_parent->openChild();
+    }
 
-// #included from: ../reporters/catch_reporter_xml.hpp
-#define TWOBLUECUBES_CATCH_REPORTER_XML_HPP_INCLUDED
+    void TrackerBase::close() {
 
-// #included from: catch_reporter_bases.hpp
-#define TWOBLUECUBES_CATCH_REPORTER_BASES_HPP_INCLUDED
+        // Close any still open children (e.g. generators)
+        while( &m_ctx.currentTracker() != this )
+            m_ctx.currentTracker().close();
 
-#include <cstring>
+        switch( m_runState ) {
+            case NeedsAnotherRun:
+                break;
 
-namespace Catch {
+            case Executing:
+                m_runState = CompletedSuccessfully;
+                break;
+            case ExecutingChildren:
+                if( m_children.empty() || m_children.back()->isComplete() )
+                    m_runState = CompletedSuccessfully;
+                break;
 
-    struct StreamingReporterBase : SharedImpl<IStreamingReporter> {
+            case NotStarted:
+            case CompletedSuccessfully:
+            case Failed:
+                CATCH_INTERNAL_ERROR( "Illogical state: " << m_runState );
 
-        StreamingReporterBase( ReporterConfig const& _config )
-        :   m_config( _config.fullConfig() ),
-            stream( _config.stream() )
-        {
-            m_reporterPrefs.shouldRedirectStdOut = false;
+            default:
+                CATCH_INTERNAL_ERROR( "Unknown state: " << m_runState );
         }
+        moveToParent();
+        m_ctx.completeCycle();
+    }
+    void TrackerBase::fail() {
+        m_runState = Failed;
+        if( m_parent )
+            m_parent->markAsNeedingAnotherRun();
+        moveToParent();
+        m_ctx.completeCycle();
+    }
+    void TrackerBase::markAsNeedingAnotherRun() {
+        m_runState = NeedsAnotherRun;
+    }
 
-        virtual ReporterPreferences getPreferences() const CATCH_OVERRIDE {
-            return m_reporterPrefs;
+    void TrackerBase::moveToParent() {
+        assert( m_parent );
+        m_ctx.setCurrentTracker( m_parent );
+    }
+    void TrackerBase::moveToThis() {
+        m_ctx.setCurrentTracker( this );
+    }
+
+    SectionTracker::SectionTracker( NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent )
+    :   TrackerBase( nameAndLocation, ctx, parent )
+    {
+        if( parent ) {
+            while( !parent->isSectionTracker() )
+                parent = &parent->parent();
+
+            SectionTracker& parentSection = static_cast<SectionTracker&>( *parent );
+            addNextFilters( parentSection.m_filters );
         }
+    }
 
-        virtual ~StreamingReporterBase() CATCH_OVERRIDE;
+    bool SectionTracker::isSectionTracker() const { return true; }
 
-        virtual void noMatchingTestCases( std::string const& ) CATCH_OVERRIDE {}
+    SectionTracker& SectionTracker::acquire( TrackerContext& ctx, NameAndLocation const& nameAndLocation ) {
+        std::shared_ptr<SectionTracker> section;
 
-        virtual void testRunStarting( TestRunInfo const& _testRunInfo ) CATCH_OVERRIDE {
-            currentTestRunInfo = _testRunInfo;
+        ITracker& currentTracker = ctx.currentTracker();
+        if( ITrackerPtr childTracker = currentTracker.findChild( nameAndLocation ) ) {
+            assert( childTracker );
+            assert( childTracker->isSectionTracker() );
+            section = std::static_pointer_cast<SectionTracker>( childTracker );
         }
-        virtual void testGroupStarting( GroupInfo const& _groupInfo ) CATCH_OVERRIDE {
-            currentGroupInfo = _groupInfo;
+        else {
+            section = std::make_shared<SectionTracker>( nameAndLocation, ctx, &currentTracker );
+            currentTracker.addChild( section );
         }
+        if( !ctx.completedCycle() )
+            section->tryOpen();
+        return *section;
+    }
 
-        virtual void testCaseStarting( TestCaseInfo const& _testInfo ) CATCH_OVERRIDE {
-            currentTestCaseInfo = _testInfo;
-        }
-        virtual void sectionStarting( SectionInfo const& _sectionInfo ) CATCH_OVERRIDE {
-            m_sectionStack.push_back( _sectionInfo );
-        }
+    void SectionTracker::tryOpen() {
+        if( !isComplete() && (m_filters.empty() || m_filters[0].empty() ||  m_filters[0] == m_nameAndLocation.name ) )
+            open();
+    }
 
-        virtual void sectionEnded( SectionStats const& /* _sectionStats */ ) CATCH_OVERRIDE {
-            m_sectionStack.pop_back();
-        }
-        virtual void testCaseEnded( TestCaseStats const& /* _testCaseStats */ ) CATCH_OVERRIDE {
-            currentTestCaseInfo.reset();
+    void SectionTracker::addInitialFilters( std::vector<std::string> const& filters ) {
+        if( !filters.empty() ) {
+            m_filters.push_back(""); // Root - should never be consulted
+            m_filters.push_back(""); // Test Case - not a section filter
+            m_filters.insert( m_filters.end(), filters.begin(), filters.end() );
         }
-        virtual void testGroupEnded( TestGroupStats const& /* _testGroupStats */ ) CATCH_OVERRIDE {
-            currentGroupInfo.reset();
+    }
+    void SectionTracker::addNextFilters( std::vector<std::string> const& filters ) {
+        if( filters.size() > 1 )
+            m_filters.insert( m_filters.end(), ++filters.begin(), filters.end() );
+    }
+
+    IndexTracker::IndexTracker( NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent, int size )
+    :   TrackerBase( nameAndLocation, ctx, parent ),
+        m_size( size )
+    {}
+
+    bool IndexTracker::isIndexTracker() const { return true; }
+
+    IndexTracker& IndexTracker::acquire( TrackerContext& ctx, NameAndLocation const& nameAndLocation, int size ) {
+        std::shared_ptr<IndexTracker> tracker;
+
+        ITracker& currentTracker = ctx.currentTracker();
+        if( ITrackerPtr childTracker = currentTracker.findChild( nameAndLocation ) ) {
+            assert( childTracker );
+            assert( childTracker->isIndexTracker() );
+            tracker = std::static_pointer_cast<IndexTracker>( childTracker );
         }
-        virtual void testRunEnded( TestRunStats const& /* _testRunStats */ ) CATCH_OVERRIDE {
-            currentTestCaseInfo.reset();
-            currentGroupInfo.reset();
-            currentTestRunInfo.reset();
+        else {
+            tracker = std::make_shared<IndexTracker>( nameAndLocation, ctx, &currentTracker, size );
+            currentTracker.addChild( tracker );
         }
 
-        virtual void skipTest( TestCaseInfo const& ) CATCH_OVERRIDE {
-            // Don't do anything with this by default.
-            // It can optionally be overridden in the derived class.
+        if( !ctx.completedCycle() && !tracker->isComplete() ) {
+            if( tracker->m_runState != ExecutingChildren && tracker->m_runState != NeedsAnotherRun )
+                tracker->moveNext();
+            tracker->open();
         }
 
-        Ptr<IConfig const> m_config;
-        std::ostream& stream;
+        return *tracker;
+    }
 
-        LazyStat<TestRunInfo> currentTestRunInfo;
-        LazyStat<GroupInfo> currentGroupInfo;
-        LazyStat<TestCaseInfo> currentTestCaseInfo;
+    int IndexTracker::index() const { return m_index; }
 
-        std::vector<SectionInfo> m_sectionStack;
-        ReporterPreferences m_reporterPrefs;
-    };
+    void IndexTracker::moveNext() {
+        m_index++;
+        m_children.clear();
+    }
 
-    struct CumulativeReporterBase : SharedImpl<IStreamingReporter> {
-        template<typename T, typename ChildNodeT>
-        struct Node : SharedImpl<> {
-            explicit Node( T const& _value ) : value( _value ) {}
-            virtual ~Node() {}
+    void IndexTracker::close() {
+        TrackerBase::close();
+        if( m_runState == CompletedSuccessfully && m_index < m_size-1 )
+            m_runState = Executing;
+    }
 
-            typedef std::vector<Ptr<ChildNodeT> > ChildNodes;
-            T value;
-            ChildNodes children;
-        };
-        struct SectionNode : SharedImpl<> {
-            explicit SectionNode( SectionStats const& _stats ) : stats( _stats ) {}
-            virtual ~SectionNode();
+} // namespace TestCaseTracking
 
-            bool operator == ( SectionNode const& other ) const {
-                return stats.sectionInfo.lineInfo == other.stats.sectionInfo.lineInfo;
-            }
-            bool operator == ( Ptr<SectionNode> const& other ) const {
-                return operator==( *other );
-            }
+using TestCaseTracking::ITracker;
+using TestCaseTracking::TrackerContext;
+using TestCaseTracking::SectionTracker;
+using TestCaseTracking::IndexTracker;
 
-            SectionStats stats;
-            typedef std::vector<Ptr<SectionNode> > ChildSections;
-            typedef std::vector<AssertionStats> Assertions;
-            ChildSections childSections;
-            Assertions assertions;
-            std::string stdOut;
-            std::string stdErr;
-        };
+} // namespace Catch
 
-        struct BySectionInfo {
-            BySectionInfo( SectionInfo const& other ) : m_other( other ) {}
-			BySectionInfo( BySectionInfo const& other ) : m_other( other.m_other ) {}
-            bool operator() ( Ptr<SectionNode> const& node ) const {
-                return node->stats.sectionInfo.lineInfo == m_other.lineInfo;
-            }
-        private:
-			void operator=( BySectionInfo const& );
-            SectionInfo const& m_other;
-        };
+#if defined(__clang__)
+#    pragma clang diagnostic pop
+#endif
+// end catch_test_case_tracker.cpp
+// start catch_test_registry.cpp
+
+namespace Catch {
 
-        typedef Node<TestCaseStats, SectionNode> TestCaseNode;
-        typedef Node<TestGroupStats, TestCaseNode> TestGroupNode;
-        typedef Node<TestRunStats, TestGroupNode> TestRunNode;
+    auto makeTestInvoker( void(*testAsFunction)() ) noexcept -> ITestInvoker* {
+        return new(std::nothrow) TestInvokerAsFunction( testAsFunction );
+    }
 
-        CumulativeReporterBase( ReporterConfig const& _config )
-        :   m_config( _config.fullConfig() ),
-            stream( _config.stream() )
-        {
-            m_reporterPrefs.shouldRedirectStdOut = false;
+    NameAndTags::NameAndTags( StringRef name_ , StringRef tags_ ) noexcept : name( name_ ), tags( tags_ ) {}
+
+    AutoReg::AutoReg( ITestInvoker* invoker, SourceLineInfo const& lineInfo, StringRef classOrMethod, NameAndTags const& nameAndTags ) noexcept {
+        try {
+            getMutableRegistryHub()
+                    .registerTest(
+                        makeTestCase(
+                            invoker,
+                            extractClassName( classOrMethod ),
+                            nameAndTags.name,
+                            nameAndTags.tags,
+                            lineInfo));
+        } catch (...) {
+            // Do not throw when constructing global objects, instead register the exception to be processed later
+            getMutableRegistryHub().registerStartupException();
         }
-        ~CumulativeReporterBase();
+    }
 
-        virtual ReporterPreferences getPreferences() const CATCH_OVERRIDE {
-            return m_reporterPrefs;
+    AutoReg::~AutoReg() = default;
+}
+// end catch_test_registry.cpp
+// start catch_test_spec.cpp
+
+#include <algorithm>
+#include <string>
+#include <vector>
+#include <memory>
+
+namespace Catch {
+
+    TestSpec::Pattern::~Pattern() = default;
+    TestSpec::NamePattern::~NamePattern() = default;
+    TestSpec::TagPattern::~TagPattern() = default;
+    TestSpec::ExcludedPattern::~ExcludedPattern() = default;
+
+    TestSpec::NamePattern::NamePattern( std::string const& name )
+    : m_wildcardPattern( toLower( name ), CaseSensitive::No )
+    {}
+    bool TestSpec::NamePattern::matches( TestCaseInfo const& testCase ) const {
+        return m_wildcardPattern.matches( toLower( testCase.name ) );
+    }
+
+    TestSpec::TagPattern::TagPattern( std::string const& tag ) : m_tag( toLower( tag ) ) {}
+    bool TestSpec::TagPattern::matches( TestCaseInfo const& testCase ) const {
+        return std::find(begin(testCase.lcaseTags),
+                         end(testCase.lcaseTags),
+                         m_tag) != end(testCase.lcaseTags);
+    }
+
+    TestSpec::ExcludedPattern::ExcludedPattern( PatternPtr const& underlyingPattern ) : m_underlyingPattern( underlyingPattern ) {}
+    bool TestSpec::ExcludedPattern::matches( TestCaseInfo const& testCase ) const { return !m_underlyingPattern->matches( testCase ); }
+
+    bool TestSpec::Filter::matches( TestCaseInfo const& testCase ) const {
+        // All patterns in a filter must match for the filter to be a match
+        for( auto const& pattern : m_patterns ) {
+            if( !pattern->matches( testCase ) )
+                return false;
         }
+        return true;
+    }
 
-        virtual void testRunStarting( TestRunInfo const& ) CATCH_OVERRIDE {}
-        virtual void testGroupStarting( GroupInfo const& ) CATCH_OVERRIDE {}
+    bool TestSpec::hasFilters() const {
+        return !m_filters.empty();
+    }
+    bool TestSpec::matches( TestCaseInfo const& testCase ) const {
+        // A TestSpec matches if any filter matches
+        for( auto const& filter : m_filters )
+            if( filter.matches( testCase ) )
+                return true;
+        return false;
+    }
+}
+// end catch_test_spec.cpp
+// start catch_test_spec_parser.cpp
 
-        virtual void testCaseStarting( TestCaseInfo const& ) CATCH_OVERRIDE {}
+namespace Catch {
 
-        virtual void sectionStarting( SectionInfo const& sectionInfo ) CATCH_OVERRIDE {
-            SectionStats incompleteStats( sectionInfo, Counts(), 0, false );
-            Ptr<SectionNode> node;
-            if( m_sectionStack.empty() ) {
-                if( !m_rootSection )
-                    m_rootSection = new SectionNode( incompleteStats );
-                node = m_rootSection;
+    TestSpecParser::TestSpecParser( ITagAliasRegistry const& tagAliases ) : m_tagAliases( &tagAliases ) {}
+
+    TestSpecParser& TestSpecParser::parse( std::string const& arg ) {
+        m_mode = None;
+        m_exclusion = false;
+        m_start = std::string::npos;
+        m_arg = m_tagAliases->expandAliases( arg );
+        m_escapeChars.clear();
+        for( m_pos = 0; m_pos < m_arg.size(); ++m_pos )
+            visitChar( m_arg[m_pos] );
+        if( m_mode == Name )
+            addPattern<TestSpec::NamePattern>();
+        return *this;
+    }
+    TestSpec TestSpecParser::testSpec() {
+        addFilter();
+        return m_testSpec;
+    }
+
+    void TestSpecParser::visitChar( char c ) {
+        if( m_mode == None ) {
+            switch( c ) {
+            case ' ': return;
+            case '~': m_exclusion = true; return;
+            case '[': return startNewMode( Tag, ++m_pos );
+            case '"': return startNewMode( QuotedName, ++m_pos );
+            case '\\': return escape();
+            default: startNewMode( Name, m_pos ); break;
             }
-            else {
-                SectionNode& parentNode = *m_sectionStack.back();
-                SectionNode::ChildSections::const_iterator it =
-                    std::find_if(   parentNode.childSections.begin(),
-                                    parentNode.childSections.end(),
-                                    BySectionInfo( sectionInfo ) );
-                if( it == parentNode.childSections.end() ) {
-                    node = new SectionNode( incompleteStats );
-                    parentNode.childSections.push_back( node );
-                }
+        }
+        if( m_mode == Name ) {
+            if( c == ',' ) {
+                addPattern<TestSpec::NamePattern>();
+                addFilter();
+            }
+            else if( c == '[' ) {
+                if( subString() == "exclude:" )
+                    m_exclusion = true;
                 else
-                    node = *it;
+                    addPattern<TestSpec::NamePattern>();
+                startNewMode( Tag, ++m_pos );
             }
-            m_sectionStack.push_back( node );
-            m_deepestSection = node;
+            else if( c == '\\' )
+                escape();
         }
+        else if( m_mode == EscapedName )
+            m_mode = Name;
+        else if( m_mode == QuotedName && c == '"' )
+            addPattern<TestSpec::NamePattern>();
+        else if( m_mode == Tag && c == ']' )
+            addPattern<TestSpec::TagPattern>();
+    }
+    void TestSpecParser::startNewMode( Mode mode, std::size_t start ) {
+        m_mode = mode;
+        m_start = start;
+    }
+    void TestSpecParser::escape() {
+        if( m_mode == None )
+            m_start = m_pos;
+        m_mode = EscapedName;
+        m_escapeChars.push_back( m_pos );
+    }
+    std::string TestSpecParser::subString() const { return m_arg.substr( m_start, m_pos - m_start ); }
 
-        virtual void assertionStarting( AssertionInfo const& ) CATCH_OVERRIDE {}
-
-        virtual bool assertionEnded( AssertionStats const& assertionStats ) CATCH_OVERRIDE {
-            assert( !m_sectionStack.empty() );
-            SectionNode& sectionNode = *m_sectionStack.back();
-            sectionNode.assertions.push_back( assertionStats );
-            return true;
+    void TestSpecParser::addFilter() {
+        if( !m_currentFilter.m_patterns.empty() ) {
+            m_testSpec.m_filters.push_back( m_currentFilter );
+            m_currentFilter = TestSpec::Filter();
         }
-        virtual void sectionEnded( SectionStats const& sectionStats ) CATCH_OVERRIDE {
-            assert( !m_sectionStack.empty() );
-            SectionNode& node = *m_sectionStack.back();
-            node.stats = sectionStats;
-            m_sectionStack.pop_back();
-        }
-        virtual void testCaseEnded( TestCaseStats const& testCaseStats ) CATCH_OVERRIDE {
-            Ptr<TestCaseNode> node = new TestCaseNode( testCaseStats );
-            assert( m_sectionStack.size() == 0 );
-            node->children.push_back( m_rootSection );
-            m_testCases.push_back( node );
-            m_rootSection.reset();
+    }
 
-            assert( m_deepestSection );
-            m_deepestSection->stdOut = testCaseStats.stdOut;
-            m_deepestSection->stdErr = testCaseStats.stdErr;
-        }
-        virtual void testGroupEnded( TestGroupStats const& testGroupStats ) CATCH_OVERRIDE {
-            Ptr<TestGroupNode> node = new TestGroupNode( testGroupStats );
-            node->children.swap( m_testCases );
-            m_testGroups.push_back( node );
-        }
-        virtual void testRunEnded( TestRunStats const& testRunStats ) CATCH_OVERRIDE {
-            Ptr<TestRunNode> node = new TestRunNode( testRunStats );
-            node->children.swap( m_testGroups );
-            m_testRuns.push_back( node );
-            testRunEndedCumulative();
-        }
-        virtual void testRunEndedCumulative() = 0;
+    TestSpec parseTestSpec( std::string const& arg ) {
+        return TestSpecParser( ITagAliasRegistry::get() ).parse( arg ).testSpec();
+    }
 
-        virtual void skipTest( TestCaseInfo const& ) CATCH_OVERRIDE {}
+} // namespace Catch
+// end catch_test_spec_parser.cpp
+// start catch_timer.cpp
 
-        Ptr<IConfig const> m_config;
-        std::ostream& stream;
-        std::vector<AssertionStats> m_assertions;
-        std::vector<std::vector<Ptr<SectionNode> > > m_sections;
-        std::vector<Ptr<TestCaseNode> > m_testCases;
-        std::vector<Ptr<TestGroupNode> > m_testGroups;
+#include <chrono>
 
-        std::vector<Ptr<TestRunNode> > m_testRuns;
+namespace Catch {
 
-        Ptr<SectionNode> m_rootSection;
-        Ptr<SectionNode> m_deepestSection;
-        std::vector<Ptr<SectionNode> > m_sectionStack;
-        ReporterPreferences m_reporterPrefs;
+    auto getCurrentNanosecondsSinceEpoch() -> uint64_t {
+        return std::chrono::duration_cast<std::chrono::nanoseconds>( std::chrono::high_resolution_clock::now().time_since_epoch() ).count();
+    }
 
-    };
+    auto estimateClockResolution() -> uint64_t {
+        uint64_t sum = 0;
+        static const uint64_t iterations = 1000000;
 
-    template<char C>
-    char const* getLineOfChars() {
-        static char line[CATCH_CONFIG_CONSOLE_WIDTH] = {0};
-        if( !*line ) {
-            memset( line, C, CATCH_CONFIG_CONSOLE_WIDTH-1 );
-            line[CATCH_CONFIG_CONSOLE_WIDTH-1] = 0;
+        for( std::size_t i = 0; i < iterations; ++i ) {
+
+            uint64_t ticks;
+            uint64_t baseTicks = getCurrentNanosecondsSinceEpoch();
+            do {
+                ticks = getCurrentNanosecondsSinceEpoch();
+            }
+            while( ticks == baseTicks );
+
+            auto delta = ticks - baseTicks;
+            sum += delta;
         }
-        return line;
+
+        // We're just taking the mean, here. To do better we could take the std. dev and exclude outliers
+        // - and potentially do more iterations if there's a high variance.
+        return sum/iterations;
+    }
+    auto getEstimatedClockResolution() -> uint64_t {
+        static auto s_resolution = estimateClockResolution();
+        return s_resolution;
     }
 
-    struct TestEventListenerBase : StreamingReporterBase {
-        TestEventListenerBase( ReporterConfig const& _config )
-        :   StreamingReporterBase( _config )
-        {}
+    void Timer::start() {
+       m_nanoseconds = getCurrentNanosecondsSinceEpoch();
+    }
+    auto Timer::getElapsedNanoseconds() const -> unsigned int {
+        return static_cast<unsigned int>(getCurrentNanosecondsSinceEpoch() - m_nanoseconds);
+    }
+    auto Timer::getElapsedMicroseconds() const -> unsigned int {
+        return static_cast<unsigned int>(getElapsedNanoseconds()/1000);
+    }
+    auto Timer::getElapsedMilliseconds() const -> unsigned int {
+        return static_cast<unsigned int>(getElapsedMicroseconds()/1000);
+    }
+    auto Timer::getElapsedSeconds() const -> double {
+        return getElapsedMicroseconds()/1000000.0;
+    }
 
-        virtual void assertionStarting( AssertionInfo const& ) CATCH_OVERRIDE {}
-        virtual bool assertionEnded( AssertionStats const& ) CATCH_OVERRIDE {
-            return false;
-        }
-    };
+} // namespace Catch
+// end catch_timer.cpp
+// start catch_tostring.cpp
 
-} // end namespace Catch
+#if defined(__clang__)
+#    pragma clang diagnostic push
+#    pragma clang diagnostic ignored "-Wexit-time-destructors"
+#    pragma clang diagnostic ignored "-Wglobal-constructors"
+#endif
 
-// #included from: ../internal/catch_reporter_registrars.hpp
-#define TWOBLUECUBES_CATCH_REPORTER_REGISTRARS_HPP_INCLUDED
+#include <iomanip>
 
 namespace Catch {
 
-    template<typename T>
-    class LegacyReporterRegistrar {
+namespace Detail {
 
-        class ReporterFactory : public IReporterFactory {
-            virtual IStreamingReporter* create( ReporterConfig const& config ) const {
-                return new LegacyReporterAdapter( new T( config ) );
-            }
+    const std::string unprintableString = "{?}";
 
-            virtual std::string getDescription() const {
-                return T::getDescription();
+    namespace {
+        const int hexThreshold = 255;
+
+        struct Endianness {
+            enum Arch { Big, Little };
+
+            static Arch which() {
+                union _{
+                    int asInt;
+                    char asChar[sizeof (int)];
+                } u;
+
+                u.asInt = 1;
+                return ( u.asChar[sizeof(int)-1] == 1 ) ? Big : Little;
             }
         };
+    }
 
-    public:
-
-        LegacyReporterRegistrar( std::string const& name ) {
-            getMutableRegistryHub().registerReporter( name, new ReporterFactory() );
+    std::string rawMemoryToString( const void *object, std::size_t size ) {
+        // Reverse order for little endian architectures
+        int i = 0, end = static_cast<int>( size ), inc = 1;
+        if( Endianness::which() == Endianness::Little ) {
+            i = end-1;
+            end = inc = -1;
         }
-    };
 
-    template<typename T>
-    class ReporterRegistrar {
-
-        class ReporterFactory : public SharedImpl<IReporterFactory> {
+        unsigned char const *bytes = static_cast<unsigned char const *>(object);
+        std::ostringstream os;
+        os << "0x" << std::setfill('0') << std::hex;
+        for( ; i != end; i += inc )
+             os << std::setw(2) << static_cast<unsigned>(bytes[i]);
+       return os.str();
+    }
+}
 
-            // *** Please Note ***:
-            // - If you end up here looking at a compiler error because it's trying to register
-            // your custom reporter class be aware that the native reporter interface has changed
-            // to IStreamingReporter. The "legacy" interface, IReporter, is still supported via
-            // an adapter. Just use REGISTER_LEGACY_REPORTER to take advantage of the adapter.
-            // However please consider updating to the new interface as the old one is now
-            // deprecated and will probably be removed quite soon!
-            // Please contact me via github if you have any questions at all about this.
-            // In fact, ideally, please contact me anyway to let me know you've hit this - as I have
-            // no idea who is actually using custom reporters at all (possibly no-one!).
-            // The new interface is designed to minimise exposure to interface changes in the future.
-            virtual IStreamingReporter* create( ReporterConfig const& config ) const {
-                return new T( config );
-            }
+template<typename T>
+std::string fpToString( T value, int precision ) {
+    std::ostringstream oss;
+    oss << std::setprecision( precision )
+        << std::fixed
+        << value;
+    std::string d = oss.str();
+    std::size_t i = d.find_last_not_of( '0' );
+    if( i != std::string::npos && i != d.size()-1 ) {
+        if( d[i] == '.' )
+            i++;
+        d = d.substr( 0, i+1 );
+    }
+    return d;
+}
 
-            virtual std::string getDescription() const {
-                return T::getDescription();
-            }
-        };
+//// ======================================================= ////
+//
+//   Out-of-line defs for full specialization of StringMaker
+//
+//// ======================================================= ////
 
-    public:
+std::string StringMaker<std::string>::convert(const std::string& str) {
+    if (!getCurrentContext().getConfig()->showInvisibles()) {
+        return '"' + str + '"';
+    }
 
-        ReporterRegistrar( std::string const& name ) {
-            getMutableRegistryHub().registerReporter( name, new ReporterFactory() );
+    std::string s("\"");
+    for (char c : str) {
+        switch (c) {
+        case '\n':
+            s.append("\\n");
+            break;
+        case '\t':
+            s.append("\\t");
+            break;
+        default:
+            s.push_back(c);
+            break;
         }
-    };
+    }
+    s.append("\"");
+    return s;
+}
 
-    template<typename T>
-    class ListenerRegistrar {
+std::string StringMaker<std::wstring>::convert(const std::wstring& wstr) {
+    std::string s;
+    s.reserve(wstr.size());
+    for (auto c : wstr) {
+        s += (c <= 0xff) ? static_cast<char>(c) : '?';
+    }
+    return ::Catch::Detail::stringify(s);
+}
+
+std::string StringMaker<char const*>::convert(char const* str) {
+    if (str) {
+        return ::Catch::Detail::stringify(std::string{ str });
+    } else {
+        return{ "{null string}" };
+    }
+}
+std::string StringMaker<char*>::convert(char* str) {
+    if (str) {
+        return ::Catch::Detail::stringify(std::string{ str });
+    } else {
+        return{ "{null string}" };
+    }
+}
+std::string StringMaker<wchar_t const*>::convert(wchar_t const * str) {
+    if (str) {
+        return ::Catch::Detail::stringify(std::wstring{ str });
+    } else {
+        return{ "{null string}" };
+    }
+}
+std::string StringMaker<wchar_t *>::convert(wchar_t * str) {
+    if (str) {
+        return ::Catch::Detail::stringify(std::wstring{ str });
+    } else {
+        return{ "{null string}" };
+    }
+}
 
-        class ListenerFactory : public SharedImpl<IReporterFactory> {
+std::string StringMaker<int>::convert(int value) {
+    return ::Catch::Detail::stringify(static_cast<long long>(value));
+}
+std::string StringMaker<long>::convert(long value) {
+    return ::Catch::Detail::stringify(static_cast<long long>(value));
+}
+std::string StringMaker<long long>::convert(long long value) {
+    std::ostringstream oss;
+    oss << value;
+    if (value > Detail::hexThreshold) {
+        oss << " (0x" << std::hex << value << ')';
+    }
+    return oss.str();
+}
 
-            virtual IStreamingReporter* create( ReporterConfig const& config ) const {
-                return new T( config );
-            }
-            virtual std::string getDescription() const {
-                return "";
-            }
-        };
+std::string StringMaker<unsigned int>::convert(unsigned int value) {
+    return ::Catch::Detail::stringify(static_cast<unsigned long long>(value));
+}
+std::string StringMaker<unsigned long>::convert(unsigned long value) {
+    return ::Catch::Detail::stringify(static_cast<unsigned long long>(value));
+}
+std::string StringMaker<unsigned long long>::convert(unsigned long long value) {
+    std::ostringstream oss;
+    oss << value;
+    if (value > Detail::hexThreshold) {
+        oss << " (0x" << std::hex << value << ')';
+    }
+    return oss.str();
+}
 
-    public:
+std::string StringMaker<bool>::convert(bool b) {
+    return b ? "true" : "false";
+}
 
-        ListenerRegistrar() {
-            getMutableRegistryHub().registerListener( new ListenerFactory() );
-        }
-    };
+std::string StringMaker<char>::convert(char value) {
+    if (value == '\r') {
+        return "'\\r'";
+    } else if (value == '\f') {
+        return "'\\f'";
+    } else if (value == '\n') {
+        return "'\\n'";
+    } else if (value == '\t') {
+        return "'\\t'";
+    } else if ('\0' <= value && value < ' ') {
+        return ::Catch::Detail::stringify(static_cast<unsigned int>(value));
+    } else {
+        char chstr[] = "' '";
+        chstr[1] = value;
+        return chstr;
+    }
+}
+std::string StringMaker<signed char>::convert(signed char c) {
+    return ::Catch::Detail::stringify(static_cast<char>(c));
+}
+std::string StringMaker<unsigned char>::convert(unsigned char c) {
+    return ::Catch::Detail::stringify(static_cast<char>(c));
 }
 
-#define INTERNAL_CATCH_REGISTER_LEGACY_REPORTER( name, reporterType ) \
-    namespace{ Catch::LegacyReporterRegistrar<reporterType> catch_internal_RegistrarFor##reporterType( name ); }
+std::string StringMaker<std::nullptr_t>::convert(std::nullptr_t) {
+    return "nullptr";
+}
 
-#define INTERNAL_CATCH_REGISTER_REPORTER( name, reporterType ) \
-    namespace{ Catch::ReporterRegistrar<reporterType> catch_internal_RegistrarFor##reporterType( name ); }
+std::string StringMaker<float>::convert(float value) {
+    return fpToString(value, 5) + 'f';
+}
+std::string StringMaker<double>::convert(double value) {
+    return fpToString(value, 10);
+}
 
-#define INTERNAL_CATCH_REGISTER_LISTENER( listenerType ) \
-    namespace{ Catch::ListenerRegistrar<listenerType> catch_internal_RegistrarFor##listenerType; }
+} // end namespace Catch
 
-// #included from: ../internal/catch_xmlwriter.hpp
-#define TWOBLUECUBES_CATCH_XMLWRITER_HPP_INCLUDED
+#if defined(__clang__)
+#    pragma clang diagnostic pop
+#endif
 
-#include <sstream>
-#include <string>
-#include <vector>
-#include <iomanip>
+// end catch_tostring.cpp
+// start catch_totals.cpp
 
 namespace Catch {
 
-    class XmlEncode {
-    public:
-        enum ForWhat { ForTextNodes, ForAttributes };
+    Counts Counts::operator - ( Counts const& other ) const {
+        Counts diff;
+        diff.passed = passed - other.passed;
+        diff.failed = failed - other.failed;
+        diff.failedButOk = failedButOk - other.failedButOk;
+        return diff;
+    }
 
-        XmlEncode( std::string const& str, ForWhat forWhat = ForTextNodes )
-        :   m_str( str ),
-            m_forWhat( forWhat )
-        {}
+    Counts& Counts::operator += ( Counts const& other ) {
+        passed += other.passed;
+        failed += other.failed;
+        failedButOk += other.failedButOk;
+        return *this;
+    }
+
+    std::size_t Counts::total() const {
+        return passed + failed + failedButOk;
+    }
+    bool Counts::allPassed() const {
+        return failed == 0 && failedButOk == 0;
+    }
+    bool Counts::allOk() const {
+        return failed == 0;
+    }
 
-        void encodeTo( std::ostream& os ) const {
+    Totals Totals::operator - ( Totals const& other ) const {
+        Totals diff;
+        diff.assertions = assertions - other.assertions;
+        diff.testCases = testCases - other.testCases;
+        return diff;
+    }
 
-            // Apostrophe escaping not necessary if we always use " to write attributes
-            // (see: http://www.w3.org/TR/xml/#syntax)
+    Totals& Totals::operator += ( Totals const& other ) {
+        assertions += other.assertions;
+        testCases += other.testCases;
+        return *this;
+    }
 
-            for( std::size_t i = 0; i < m_str.size(); ++ i ) {
-                char c = m_str[i];
-                switch( c ) {
-                    case '<':   os << "&lt;"; break;
-                    case '&':   os << "&amp;"; break;
+    Totals Totals::delta( Totals const& prevTotals ) const {
+        Totals diff = *this - prevTotals;
+        if( diff.assertions.failed > 0 )
+            ++diff.testCases.failed;
+        else if( diff.assertions.failedButOk > 0 )
+            ++diff.testCases.failedButOk;
+        else
+            ++diff.testCases.passed;
+        return diff;
+    }
 
-                    case '>':
-                        // See: http://www.w3.org/TR/xml/#syntax
-                        if( i > 2 && m_str[i-1] == ']' && m_str[i-2] == ']' )
-                            os << "&gt;";
-                        else
-                            os << c;
-                        break;
+}
+// end catch_totals.cpp
+// start catch_version.cpp
 
-                    case '\"':
-                        if( m_forWhat == ForAttributes )
-                            os << "&quot;";
-                        else
-                            os << c;
-                        break;
+#include <ostream>
 
-                    default:
-                        // Escape control chars - based on contribution by @espenalb in PR #465
-                        if ( ( c < '\x09' ) || ( c > '\x0D' && c < '\x20') || c=='\x7F' )
-                            os << "&#x" << std::uppercase << std::hex << static_cast<int>( c );
-                        else
-                            os << c;
-                }
-            }
+namespace Catch {
+
+    Version::Version
+        (   unsigned int _majorVersion,
+            unsigned int _minorVersion,
+            unsigned int _patchNumber,
+            char const * const _branchName,
+            unsigned int _buildNumber )
+    :   majorVersion( _majorVersion ),
+        minorVersion( _minorVersion ),
+        patchNumber( _patchNumber ),
+        branchName( _branchName ),
+        buildNumber( _buildNumber )
+    {}
+
+    std::ostream& operator << ( std::ostream& os, Version const& version ) {
+        os  << version.majorVersion << '.'
+            << version.minorVersion << '.'
+            << version.patchNumber;
+        // branchName is never null -> 0th char is \0 if it is empty
+        if (version.branchName[0]) {
+            os << '-' << version.branchName
+               << '.' << version.buildNumber;
         }
+        return os;
+    }
 
-        friend std::ostream& operator << ( std::ostream& os, XmlEncode const& xmlEncode ) {
-            xmlEncode.encodeTo( os );
-            return os;
+    Version const& libraryVersion() {
+        static Version version( 2, 0, 1, "", 0 );
+        return version;
+    }
+
+}
+// end catch_version.cpp
+// start catch_wildcard_pattern.cpp
+
+namespace Catch {
+
+    WildcardPattern::WildcardPattern( std::string const& pattern,
+                                      CaseSensitive::Choice caseSensitivity )
+    :   m_caseSensitivity( caseSensitivity ),
+        m_pattern( adjustCase( pattern ) )
+    {
+        if( startsWith( m_pattern, '*' ) ) {
+            m_pattern = m_pattern.substr( 1 );
+            m_wildcard = WildcardAtStart;
+        }
+        if( endsWith( m_pattern, '*' ) ) {
+            m_pattern = m_pattern.substr( 0, m_pattern.size()-1 );
+            m_wildcard = static_cast<WildcardPosition>( m_wildcard | WildcardAtEnd );
+        }
+    }
+
+    bool WildcardPattern::matches( std::string const& str ) const {
+        switch( m_wildcard ) {
+            case NoWildcard:
+                return m_pattern == adjustCase( str );
+            case WildcardAtStart:
+                return endsWith( adjustCase( str ), m_pattern );
+            case WildcardAtEnd:
+                return startsWith( adjustCase( str ), m_pattern );
+            case WildcardAtBothEnds:
+                return contains( adjustCase( str ), m_pattern );
+            default:
+                CATCH_INTERNAL_ERROR( "Unknown enum" );
         }
+    }
+
+    std::string WildcardPattern::adjustCase( std::string const& str ) const {
+        return m_caseSensitivity == CaseSensitive::No ? toLower( str ) : str;
+    }
+}
+// end catch_wildcard_pattern.cpp
+// start catch_xmlwriter.cpp
+
+// start catch_xmlwriter.h
+
+#include <sstream>
+#include <vector>
+
+namespace Catch {
+
+    class XmlEncode {
+    public:
+        enum ForWhat { ForTextNodes, ForAttributes };
+
+        XmlEncode( std::string const& str, ForWhat forWhat = ForTextNodes );
+
+        void encodeTo( std::ostream& os ) const;
+
+        friend std::ostream& operator << ( std::ostream& os, XmlEncode const& xmlEncode );
 
     private:
         std::string m_str;
@@ -8949,24 +9900,14 @@ namespace Catch {
 
         class ScopedElement {
         public:
-            ScopedElement( XmlWriter* writer )
-            :   m_writer( writer )
-            {}
+            ScopedElement( XmlWriter* writer );
 
-            ScopedElement( ScopedElement const& other )
-            :   m_writer( other.m_writer ){
-                other.m_writer = CATCH_NULL;
-            }
+            ScopedElement( ScopedElement&& other ) noexcept;
+            ScopedElement& operator=( ScopedElement&& other ) noexcept;
 
-            ~ScopedElement() {
-                if( m_writer )
-                    m_writer->endElement();
-            }
+            ~ScopedElement();
 
-            ScopedElement& writeText( std::string const& text, bool indent = true ) {
-                m_writer->writeText( text, indent );
-                return *this;
-            }
+            ScopedElement& writeText( std::string const& text, bool indent = true );
 
             template<typename T>
             ScopedElement& writeAttribute( std::string const& name, T const& attribute ) {
@@ -8975,586 +9916,812 @@ namespace Catch {
             }
 
         private:
-            mutable XmlWriter* m_writer;
+            mutable XmlWriter* m_writer = nullptr;
         };
 
-        XmlWriter()
-        :   m_tagIsOpen( false ),
-            m_needsNewline( false ),
-            m_os( &Catch::cout() )
-        {}
+        XmlWriter( std::ostream& os = Catch::cout() );
+        ~XmlWriter();
 
-        XmlWriter( std::ostream& os )
-        :   m_tagIsOpen( false ),
-            m_needsNewline( false ),
-            m_os( &os )
-        {}
+        XmlWriter( XmlWriter const& ) = delete;
+        XmlWriter& operator=( XmlWriter const& ) = delete;
 
-        ~XmlWriter() {
-            while( !m_tags.empty() )
-                endElement();
-        }
+        XmlWriter& startElement( std::string const& name );
 
-        XmlWriter& startElement( std::string const& name ) {
-            ensureTagClosed();
-            newlineIfNecessary();
-            stream() << m_indent << "<" << name;
-            m_tags.push_back( name );
-            m_indent += "  ";
-            m_tagIsOpen = true;
-            return *this;
-        }
+        ScopedElement scopedElement( std::string const& name );
 
-        ScopedElement scopedElement( std::string const& name ) {
-            ScopedElement scoped( this );
-            startElement( name );
-            return scoped;
-        }
+        XmlWriter& endElement();
 
-        XmlWriter& endElement() {
-            newlineIfNecessary();
-            m_indent = m_indent.substr( 0, m_indent.size()-2 );
-            if( m_tagIsOpen ) {
-                stream() << "/>\n";
-                m_tagIsOpen = false;
-            }
-            else {
-                stream() << m_indent << "</" << m_tags.back() << ">\n";
-            }
-            m_tags.pop_back();
-            return *this;
-        }
+        XmlWriter& writeAttribute( std::string const& name, std::string const& attribute );
 
-        XmlWriter& writeAttribute( std::string const& name, std::string const& attribute ) {
-            if( !name.empty() && !attribute.empty() )
-                stream() << " " << name << "=\"" << XmlEncode( attribute, XmlEncode::ForAttributes ) << "\"";
-            return *this;
-        }
-
-        XmlWriter& writeAttribute( std::string const& name, bool attribute ) {
-            stream() << " " << name << "=\"" << ( attribute ? "true" : "false" ) << "\"";
-            return *this;
-        }
+        XmlWriter& writeAttribute( std::string const& name, bool attribute );
 
         template<typename T>
         XmlWriter& writeAttribute( std::string const& name, T const& attribute ) {
-            std::ostringstream oss;
-            oss << attribute;
-            return writeAttribute( name, oss.str() );
+            m_oss.clear();
+            m_oss.str(std::string());
+            m_oss << attribute;
+            return writeAttribute( name, m_oss.str() );
         }
 
-        XmlWriter& writeText( std::string const& text, bool indent = true ) {
-            if( !text.empty() ){
-                bool tagWasOpen = m_tagIsOpen;
-                ensureTagClosed();
-                if( tagWasOpen && indent )
-                    stream() << m_indent;
-                stream() << XmlEncode( text );
-                m_needsNewline = true;
-            }
-            return *this;
-        }
+        XmlWriter& writeText( std::string const& text, bool indent = true );
 
-        XmlWriter& writeComment( std::string const& text ) {
-            ensureTagClosed();
-            stream() << m_indent << "<!--" << text << "-->";
-            m_needsNewline = true;
-            return *this;
-        }
+        XmlWriter& writeComment( std::string const& text );
 
-        XmlWriter& writeBlankLine() {
-            ensureTagClosed();
-            stream() << "\n";
-            return *this;
-        }
+        void writeStylesheetRef( std::string const& url );
 
-        void setStream( std::ostream& os ) {
-            m_os = &os;
-        }
+        XmlWriter& writeBlankLine();
 
-    private:
-        XmlWriter( XmlWriter const& );
-        void operator=( XmlWriter const& );
+        void ensureTagClosed();
 
-        std::ostream& stream() {
-            return *m_os;
-        }
+    private:
 
-        void ensureTagClosed() {
-            if( m_tagIsOpen ) {
-                stream() << ">\n";
-                m_tagIsOpen = false;
-            }
-        }
+        void writeDeclaration();
 
-        void newlineIfNecessary() {
-            if( m_needsNewline ) {
-                stream() << "\n";
-                m_needsNewline = false;
-            }
-        }
+        void newlineIfNecessary();
 
-        bool m_tagIsOpen;
-        bool m_needsNewline;
+        bool m_tagIsOpen = false;
+        bool m_needsNewline = false;
         std::vector<std::string> m_tags;
         std::string m_indent;
-        std::ostream* m_os;
+        std::ostream& m_os;
+        std::ostringstream m_oss;
     };
 
 }
-// #included from: catch_reenable_warnings.h
-
-#define TWOBLUECUBES_CATCH_REENABLE_WARNINGS_H_INCLUDED
-
-#ifdef __clang__
-#    ifdef __ICC // icpc defines the __clang__ macro
-#        pragma warning(pop)
-#    else
-#        pragma clang diagnostic pop
-#    endif
-#elif defined __GNUC__
-#    pragma GCC diagnostic pop
-#endif
 
+// end catch_xmlwriter.h
+#include <iomanip>
 
 namespace Catch {
-    class XmlReporter : public StreamingReporterBase {
-    public:
-        XmlReporter( ReporterConfig const& _config )
-        :   StreamingReporterBase( _config ),
-            m_sectionDepth( 0 )
-        {
-            m_reporterPrefs.shouldRedirectStdOut = true;
-        }
-
-        virtual ~XmlReporter() CATCH_OVERRIDE;
-
-        static std::string getDescription() {
-            return "Reports test results as an XML document";
-        }
 
-    public: // StreamingReporterBase
+    XmlEncode::XmlEncode( std::string const& str, ForWhat forWhat )
+    :   m_str( str ),
+        m_forWhat( forWhat )
+    {}
 
-        virtual void noMatchingTestCases( std::string const& s ) CATCH_OVERRIDE {
-            StreamingReporterBase::noMatchingTestCases( s );
-        }
+    void XmlEncode::encodeTo( std::ostream& os ) const {
 
-        virtual void testRunStarting( TestRunInfo const& testInfo ) CATCH_OVERRIDE {
-            StreamingReporterBase::testRunStarting( testInfo );
-            m_xml.setStream( stream );
-            m_xml.startElement( "Catch" );
-            if( !m_config->name().empty() )
-                m_xml.writeAttribute( "name", m_config->name() );
-        }
+        // Apostrophe escaping not necessary if we always use " to write attributes
+        // (see: http://www.w3.org/TR/xml/#syntax)
 
-        virtual void testGroupStarting( GroupInfo const& groupInfo ) CATCH_OVERRIDE {
-            StreamingReporterBase::testGroupStarting( groupInfo );
-            m_xml.startElement( "Group" )
-                .writeAttribute( "name", groupInfo.name );
-        }
+        for( std::size_t i = 0; i < m_str.size(); ++ i ) {
+            char c = m_str[i];
+            switch( c ) {
+                case '<':   os << "&lt;"; break;
+                case '&':   os << "&amp;"; break;
 
-        virtual void testCaseStarting( TestCaseInfo const& testInfo ) CATCH_OVERRIDE {
-            StreamingReporterBase::testCaseStarting(testInfo);
-            m_xml.startElement( "TestCase" ).writeAttribute( "name", trim( testInfo.name ) );
+                case '>':
+                    // See: http://www.w3.org/TR/xml/#syntax
+                    if( i > 2 && m_str[i-1] == ']' && m_str[i-2] == ']' )
+                        os << "&gt;";
+                    else
+                        os << c;
+                    break;
 
-            if ( m_config->showDurations() == ShowDurations::Always )
-                m_testCaseTimer.start();
-        }
+                case '\"':
+                    if( m_forWhat == ForAttributes )
+                        os << "&quot;";
+                    else
+                        os << c;
+                    break;
 
-        virtual void sectionStarting( SectionInfo const& sectionInfo ) CATCH_OVERRIDE {
-            StreamingReporterBase::sectionStarting( sectionInfo );
-            if( m_sectionDepth++ > 0 ) {
-                m_xml.startElement( "Section" )
-                    .writeAttribute( "name", trim( sectionInfo.name ) )
-                    .writeAttribute( "description", sectionInfo.description );
+                default:
+                    // Escape control chars - based on contribution by @espenalb in PR #465 and
+                    // by @mrpi PR #588
+                    if ( ( c >= 0 && c < '\x09' ) || ( c > '\x0D' && c < '\x20') || c=='\x7F' ) {
+                        // see http://stackoverflow.com/questions/404107/why-are-control-characters-illegal-in-xml-1-0
+                        os << "\\x" << std::uppercase << std::hex << std::setfill('0') << std::setw(2)
+                           << static_cast<int>( c );
+                    }
+                    else
+                        os << c;
             }
         }
+    }
 
-        virtual void assertionStarting( AssertionInfo const& ) CATCH_OVERRIDE { }
+    std::ostream& operator << ( std::ostream& os, XmlEncode const& xmlEncode ) {
+        xmlEncode.encodeTo( os );
+        return os;
+    }
 
-        virtual bool assertionEnded( AssertionStats const& assertionStats ) CATCH_OVERRIDE {
-            const AssertionResult& assertionResult = assertionStats.assertionResult;
+    XmlWriter::ScopedElement::ScopedElement( XmlWriter* writer )
+    :   m_writer( writer )
+    {}
 
-            // Print any info messages in <Info> tags.
-            if( assertionStats.assertionResult.getResultType() != ResultWas::Ok ) {
-                for( std::vector<MessageInfo>::const_iterator it = assertionStats.infoMessages.begin(), itEnd = assertionStats.infoMessages.end();
-                        it != itEnd;
-                        ++it ) {
-                    if( it->type == ResultWas::Info ) {
-                        m_xml.scopedElement( "Info" )
-                            .writeText( it->message );
-                    } else if ( it->type == ResultWas::Warning ) {
-                        m_xml.scopedElement( "Warning" )
-                            .writeText( it->message );
-                    }
-                }
-            }
+    XmlWriter::ScopedElement::ScopedElement( ScopedElement&& other ) noexcept
+    :   m_writer( other.m_writer ){
+        other.m_writer = nullptr;
+    }
+    XmlWriter::ScopedElement& XmlWriter::ScopedElement::operator=( ScopedElement&& other ) noexcept {
+        if ( m_writer ) {
+            m_writer->endElement();
+        }
+        m_writer = other.m_writer;
+        other.m_writer = nullptr;
+        return *this;
+    }
 
-            // Drop out if result was successful but we're not printing them.
-            if( !m_config->includeSuccessfulResults() && isOk(assertionResult.getResultType()) )
-                return true;
+    XmlWriter::ScopedElement::~ScopedElement() {
+        if( m_writer )
+            m_writer->endElement();
+    }
 
-            // Print the expression if there is one.
-            if( assertionResult.hasExpression() ) {
-                m_xml.startElement( "Expression" )
-                    .writeAttribute( "success", assertionResult.succeeded() )
-					.writeAttribute( "type", assertionResult.getTestMacroName() )
-                    .writeAttribute( "filename", assertionResult.getSourceInfo().file )
-                    .writeAttribute( "line", assertionResult.getSourceInfo().line );
+    XmlWriter::ScopedElement& XmlWriter::ScopedElement::writeText( std::string const& text, bool indent ) {
+        m_writer->writeText( text, indent );
+        return *this;
+    }
 
-                m_xml.scopedElement( "Original" )
-                    .writeText( assertionResult.getExpression() );
-                m_xml.scopedElement( "Expanded" )
-                    .writeText( assertionResult.getExpandedExpression() );
-            }
+    XmlWriter::XmlWriter( std::ostream& os ) : m_os( os )
+    {
+        writeDeclaration();
+    }
 
-            // And... Print a result applicable to each result type.
-            switch( assertionResult.getResultType() ) {
-                case ResultWas::ThrewException:
-                    m_xml.scopedElement( "Exception" )
-                        .writeAttribute( "filename", assertionResult.getSourceInfo().file )
-                        .writeAttribute( "line", assertionResult.getSourceInfo().line )
-                        .writeText( assertionResult.getMessage() );
-                    break;
-                case ResultWas::FatalErrorCondition:
-                    m_xml.scopedElement( "Fatal Error Condition" )
-                        .writeAttribute( "filename", assertionResult.getSourceInfo().file )
-                        .writeAttribute( "line", assertionResult.getSourceInfo().line )
-                        .writeText( assertionResult.getMessage() );
-                    break;
-                case ResultWas::Info:
-                    m_xml.scopedElement( "Info" )
-                        .writeText( assertionResult.getMessage() );
-                    break;
-                case ResultWas::Warning:
-                    // Warning will already have been written
-                    break;
-                case ResultWas::ExplicitFailure:
-                    m_xml.scopedElement( "Failure" )
-                        .writeText( assertionResult.getMessage() );
-                    break;
-                default:
-                    break;
-            }
+    XmlWriter::~XmlWriter() {
+        while( !m_tags.empty() )
+            endElement();
+    }
 
-            if( assertionResult.hasExpression() )
-                m_xml.endElement();
+    XmlWriter& XmlWriter::startElement( std::string const& name ) {
+        ensureTagClosed();
+        newlineIfNecessary();
+        m_os << m_indent << '<' << name;
+        m_tags.push_back( name );
+        m_indent += "  ";
+        m_tagIsOpen = true;
+        return *this;
+    }
 
-            return true;
+    XmlWriter::ScopedElement XmlWriter::scopedElement( std::string const& name ) {
+        ScopedElement scoped( this );
+        startElement( name );
+        return scoped;
+    }
+
+    XmlWriter& XmlWriter::endElement() {
+        newlineIfNecessary();
+        m_indent = m_indent.substr( 0, m_indent.size()-2 );
+        if( m_tagIsOpen ) {
+            m_os << "/>";
+            m_tagIsOpen = false;
+        }
+        else {
+            m_os << m_indent << "</" << m_tags.back() << ">";
         }
+        m_os << std::endl;
+        m_tags.pop_back();
+        return *this;
+    }
 
-        virtual void sectionEnded( SectionStats const& sectionStats ) CATCH_OVERRIDE {
-            StreamingReporterBase::sectionEnded( sectionStats );
-            if( --m_sectionDepth > 0 ) {
-                XmlWriter::ScopedElement e = m_xml.scopedElement( "OverallResults" );
-                e.writeAttribute( "successes", sectionStats.assertions.passed );
-                e.writeAttribute( "failures", sectionStats.assertions.failed );
-                e.writeAttribute( "expectedFailures", sectionStats.assertions.failedButOk );
+    XmlWriter& XmlWriter::writeAttribute( std::string const& name, std::string const& attribute ) {
+        if( !name.empty() && !attribute.empty() )
+            m_os << ' ' << name << "=\"" << XmlEncode( attribute, XmlEncode::ForAttributes ) << '"';
+        return *this;
+    }
 
-                if ( m_config->showDurations() == ShowDurations::Always )
-                    e.writeAttribute( "durationInSeconds", sectionStats.durationInSeconds );
+    XmlWriter& XmlWriter::writeAttribute( std::string const& name, bool attribute ) {
+        m_os << ' ' << name << "=\"" << ( attribute ? "true" : "false" ) << '"';
+        return *this;
+    }
 
-                m_xml.endElement();
-            }
+    XmlWriter& XmlWriter::writeText( std::string const& text, bool indent ) {
+        if( !text.empty() ){
+            bool tagWasOpen = m_tagIsOpen;
+            ensureTagClosed();
+            if( tagWasOpen && indent )
+                m_os << m_indent;
+            m_os << XmlEncode( text );
+            m_needsNewline = true;
         }
+        return *this;
+    }
 
-        virtual void testCaseEnded( TestCaseStats const& testCaseStats ) CATCH_OVERRIDE {
-            StreamingReporterBase::testCaseEnded( testCaseStats );
-            XmlWriter::ScopedElement e = m_xml.scopedElement( "OverallResult" );
-            e.writeAttribute( "success", testCaseStats.totals.assertions.allOk() );
+    XmlWriter& XmlWriter::writeComment( std::string const& text ) {
+        ensureTagClosed();
+        m_os << m_indent << "<!--" << text << "-->";
+        m_needsNewline = true;
+        return *this;
+    }
 
-            if ( m_config->showDurations() == ShowDurations::Always )
-                e.writeAttribute( "durationInSeconds", m_testCaseTimer.getElapsedSeconds() );
+    void XmlWriter::writeStylesheetRef( std::string const& url ) {
+        m_os << "<?xml-stylesheet type=\"text/xsl\" href=\"" << url << "\"?>\n";
+    }
 
-            m_xml.endElement();
-        }
+    XmlWriter& XmlWriter::writeBlankLine() {
+        ensureTagClosed();
+        m_os << '\n';
+        return *this;
+    }
 
-        virtual void testGroupEnded( TestGroupStats const& testGroupStats ) CATCH_OVERRIDE {
-            StreamingReporterBase::testGroupEnded( testGroupStats );
-            // TODO: Check testGroupStats.aborting and act accordingly.
-            m_xml.scopedElement( "OverallResults" )
-                .writeAttribute( "successes", testGroupStats.totals.assertions.passed )
-                .writeAttribute( "failures", testGroupStats.totals.assertions.failed )
-                .writeAttribute( "expectedFailures", testGroupStats.totals.assertions.failedButOk );
-            m_xml.endElement();
+    void XmlWriter::ensureTagClosed() {
+        if( m_tagIsOpen ) {
+            m_os << ">" << std::endl;
+            m_tagIsOpen = false;
         }
+    }
 
-        virtual void testRunEnded( TestRunStats const& testRunStats ) CATCH_OVERRIDE {
-            StreamingReporterBase::testRunEnded( testRunStats );
-            m_xml.scopedElement( "OverallResults" )
-                .writeAttribute( "successes", testRunStats.totals.assertions.passed )
-                .writeAttribute( "failures", testRunStats.totals.assertions.failed )
-                .writeAttribute( "expectedFailures", testRunStats.totals.assertions.failedButOk );
-            m_xml.endElement();
+    void XmlWriter::writeDeclaration() {
+        m_os << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
+    }
+
+    void XmlWriter::newlineIfNecessary() {
+        if( m_needsNewline ) {
+            m_os << std::endl;
+            m_needsNewline = false;
         }
+    }
+}
+// end catch_xmlwriter.cpp
+// start catch_reporter_bases.cpp
 
-    private:
-        Timer m_testCaseTimer;
-        XmlWriter m_xml;
-        int m_sectionDepth;
-    };
+#include <cstring>
+#include <cfloat>
+#include <cstdio>
+#include <assert.h>
+#include <memory>
 
-     INTERNAL_CATCH_REGISTER_REPORTER( "xml", XmlReporter )
+namespace Catch {
+    void prepareExpandedExpression(AssertionResult& result) {
+        result.getExpandedExpression();
+    }
+
+    // Because formatting using c++ streams is stateful, drop down to C is required
+    // Alternatively we could use stringstream, but its performance is... not good.
+    std::string getFormattedDuration( double duration ) {
+        // Max exponent + 1 is required to represent the whole part
+        // + 1 for decimal point
+        // + 3 for the 3 decimal places
+        // + 1 for null terminator
+        const std::size_t maxDoubleSize = DBL_MAX_10_EXP + 1 + 1 + 3 + 1;
+        char buffer[maxDoubleSize];
+
+        // Save previous errno, to prevent sprintf from overwriting it
+        ErrnoGuard guard;
+#ifdef _MSC_VER
+        sprintf_s(buffer, "%.3f", duration);
+#else
+        sprintf(buffer, "%.3f", duration);
+#endif
+        return std::string(buffer);
+    }
 
-} // end namespace Catch
+    TestEventListenerBase::TestEventListenerBase(ReporterConfig const & _config)
+        :StreamingReporterBase(_config) {}
 
-// #included from: ../reporters/catch_reporter_junit.hpp
-#define TWOBLUECUBES_CATCH_REPORTER_JUNIT_HPP_INCLUDED
+    void TestEventListenerBase::assertionStarting(AssertionInfo const &) {}
 
-#include <assert.h>
+    bool TestEventListenerBase::assertionEnded(AssertionStats const &) {
+        return false;
+    }
 
-namespace Catch {
+} // end namespace Catch
+// end catch_reporter_bases.cpp
+// start catch_reporter_compact.cpp
 
-    class JunitReporter : public CumulativeReporterBase {
-    public:
-        JunitReporter( ReporterConfig const& _config )
-        :   CumulativeReporterBase( _config ),
-            xml( _config.stream() )
-        {
-            m_reporterPrefs.shouldRedirectStdOut = true;
-        }
+namespace {
 
-        virtual ~JunitReporter() CATCH_OVERRIDE;
+#ifdef CATCH_PLATFORM_MAC
+    const char* failedString() { return "FAILED"; }
+    const char* passedString() { return "PASSED"; }
+#else
+    const char* failedString() { return "failed"; }
+    const char* passedString() { return "passed"; }
+#endif
 
-        static std::string getDescription() {
-            return "Reports test results in an XML format that looks like Ant's junitreport target";
-        }
+    // Colour::LightGrey
+    Catch::Colour::Code dimColour() { return Catch::Colour::FileName; }
 
-        virtual void noMatchingTestCases( std::string const& /*spec*/ ) CATCH_OVERRIDE {}
+    std::string bothOrAll( std::size_t count ) {
+        return count == 1 ? std::string() :
+               count == 2 ? "both " : "all " ;
+    }
+}
 
-        virtual void testRunStarting( TestRunInfo const& runInfo ) CATCH_OVERRIDE {
-            CumulativeReporterBase::testRunStarting( runInfo );
-            xml.startElement( "testsuites" );
-        }
+namespace Catch {
 
-        virtual void testGroupStarting( GroupInfo const& groupInfo ) CATCH_OVERRIDE {
-            suiteTimer.start();
-            stdOutForSuite.str("");
-            stdErrForSuite.str("");
-            unexpectedExceptions = 0;
-            CumulativeReporterBase::testGroupStarting( groupInfo );
-        }
+    struct CompactReporter : StreamingReporterBase<CompactReporter> {
 
-        virtual bool assertionEnded( AssertionStats const& assertionStats ) CATCH_OVERRIDE {
-            if( assertionStats.assertionResult.getResultType() == ResultWas::ThrewException )
-                unexpectedExceptions++;
-            return CumulativeReporterBase::assertionEnded( assertionStats );
-        }
+        using StreamingReporterBase::StreamingReporterBase;
 
-        virtual void testCaseEnded( TestCaseStats const& testCaseStats ) CATCH_OVERRIDE {
-            stdOutForSuite << testCaseStats.stdOut;
-            stdErrForSuite << testCaseStats.stdErr;
-            CumulativeReporterBase::testCaseEnded( testCaseStats );
+        ~CompactReporter() override;
+
+        static std::string getDescription() {
+            return "Reports test results on a single line, suitable for IDEs";
         }
 
-        virtual void testGroupEnded( TestGroupStats const& testGroupStats ) CATCH_OVERRIDE {
-            double suiteTime = suiteTimer.getElapsedSeconds();
-            CumulativeReporterBase::testGroupEnded( testGroupStats );
-            writeGroup( *m_testGroups.back(), suiteTime );
+        ReporterPreferences getPreferences() const override {
+            ReporterPreferences prefs;
+            prefs.shouldRedirectStdOut = false;
+            return prefs;
         }
 
-        virtual void testRunEndedCumulative() CATCH_OVERRIDE {
-            xml.endElement();
+        void noMatchingTestCases( std::string const& spec ) override {
+            stream << "No test cases matched '" << spec << '\'' << std::endl;
         }
 
-        void writeGroup( TestGroupNode const& groupNode, double suiteTime ) {
-            XmlWriter::ScopedElement e = xml.scopedElement( "testsuite" );
-            TestGroupStats const& stats = groupNode.value;
-            xml.writeAttribute( "name", stats.groupInfo.name );
-            xml.writeAttribute( "errors", unexpectedExceptions );
-            xml.writeAttribute( "failures", stats.totals.assertions.failed-unexpectedExceptions );
-            xml.writeAttribute( "tests", stats.totals.assertions.total() );
-            xml.writeAttribute( "hostname", "tbd" ); // !TBD
-            if( m_config->showDurations() == ShowDurations::Never )
-                xml.writeAttribute( "time", "" );
-            else
-                xml.writeAttribute( "time", suiteTime );
-            xml.writeAttribute( "timestamp", "tbd" ); // !TBD
+        void assertionStarting( AssertionInfo const& ) override {}
 
-            // Write test cases
-            for( TestGroupNode::ChildNodes::const_iterator
-                    it = groupNode.children.begin(), itEnd = groupNode.children.end();
-                    it != itEnd;
-                    ++it )
-                writeTestCase( **it );
+        bool assertionEnded( AssertionStats const& _assertionStats ) override {
+            AssertionResult const& result = _assertionStats.assertionResult;
 
-            xml.scopedElement( "system-out" ).writeText( trim( stdOutForSuite.str() ), false );
-            xml.scopedElement( "system-err" ).writeText( trim( stdErrForSuite.str() ), false );
-        }
+            bool printInfoMessages = true;
 
-        void writeTestCase( TestCaseNode const& testCaseNode ) {
-            TestCaseStats const& stats = testCaseNode.value;
+            // Drop out if result was successful and we're not printing those
+            if( !m_config->includeSuccessfulResults() && result.isOk() ) {
+                if( result.getResultType() != ResultWas::Warning )
+                    return false;
+                printInfoMessages = false;
+            }
 
-            // All test cases have exactly one section - which represents the
-            // test case itself. That section may have 0-n nested sections
-            assert( testCaseNode.children.size() == 1 );
-            SectionNode const& rootSection = *testCaseNode.children.front();
+            AssertionPrinter printer( stream, _assertionStats, printInfoMessages );
+            printer.print();
 
-            std::string className = stats.testInfo.className;
+            stream << std::endl;
+            return true;
+        }
 
-            if( className.empty() ) {
-                if( rootSection.childSections.empty() )
-                    className = "global";
+        void sectionEnded(SectionStats const& _sectionStats) override {
+            if (m_config->showDurations() == ShowDurations::Always) {
+                stream << getFormattedDuration(_sectionStats.durationInSeconds) << " s: " << _sectionStats.sectionInfo.name << std::endl;
             }
-            writeSection( className, "", rootSection );
         }
 
-        void writeSection(  std::string const& className,
-                            std::string const& rootName,
-                            SectionNode const& sectionNode ) {
-            std::string name = trim( sectionNode.stats.sectionInfo.name );
-            if( !rootName.empty() )
-                name = rootName + "/" + name;
+        void testRunEnded( TestRunStats const& _testRunStats ) override {
+            printTotals( _testRunStats.totals );
+            stream << '\n' << std::endl;
+            StreamingReporterBase::testRunEnded( _testRunStats );
+        }
 
-            if( !sectionNode.assertions.empty() ||
-                !sectionNode.stdOut.empty() ||
-                !sectionNode.stdErr.empty() ) {
-                XmlWriter::ScopedElement e = xml.scopedElement( "testcase" );
-                if( className.empty() ) {
-                    xml.writeAttribute( "classname", name );
-                    xml.writeAttribute( "name", "root" );
-                }
-                else {
-                    xml.writeAttribute( "classname", className );
-                    xml.writeAttribute( "name", name );
-                }
-                xml.writeAttribute( "time", Catch::toString( sectionNode.stats.durationInSeconds ) );
+    private:
+        class AssertionPrinter {
+        public:
+            AssertionPrinter& operator= ( AssertionPrinter const& ) = delete;
+            AssertionPrinter( AssertionPrinter const& ) = delete;
+            AssertionPrinter( std::ostream& _stream, AssertionStats const& _stats, bool _printInfoMessages )
+            : stream( _stream )
+            , result( _stats.assertionResult )
+            , messages( _stats.infoMessages )
+            , itMessage( _stats.infoMessages.begin() )
+            , printInfoMessages( _printInfoMessages )
+            {}
 
-                writeAssertions( sectionNode );
+            void print() {
+                printSourceInfo();
 
-                if( !sectionNode.stdOut.empty() )
-                    xml.scopedElement( "system-out" ).writeText( trim( sectionNode.stdOut ), false );
-                if( !sectionNode.stdErr.empty() )
-                    xml.scopedElement( "system-err" ).writeText( trim( sectionNode.stdErr ), false );
-            }
-            for( SectionNode::ChildSections::const_iterator
-                    it = sectionNode.childSections.begin(),
-                    itEnd = sectionNode.childSections.end();
-                    it != itEnd;
-                    ++it )
-                if( className.empty() )
-                    writeSection( name, "", **it );
-                else
-                    writeSection( className, name, **it );
-        }
+                itMessage = messages.begin();
 
-        void writeAssertions( SectionNode const& sectionNode ) {
-            for( SectionNode::Assertions::const_iterator
-                    it = sectionNode.assertions.begin(), itEnd = sectionNode.assertions.end();
-                    it != itEnd;
-                    ++it )
-                writeAssertion( *it );
-        }
-        void writeAssertion( AssertionStats const& stats ) {
-            AssertionResult const& result = stats.assertionResult;
-            if( !result.isOk() ) {
-                std::string elementName;
                 switch( result.getResultType() ) {
-                    case ResultWas::ThrewException:
-                    case ResultWas::FatalErrorCondition:
-                        elementName = "error";
-                        break;
-                    case ResultWas::ExplicitFailure:
-                        elementName = "failure";
+                    case ResultWas::Ok:
+                        printResultType( Colour::ResultSuccess, passedString() );
+                        printOriginalExpression();
+                        printReconstructedExpression();
+                        if ( ! result.hasExpression() )
+                            printRemainingMessages( Colour::None );
+                        else
+                            printRemainingMessages();
                         break;
                     case ResultWas::ExpressionFailed:
-                        elementName = "failure";
+                        if( result.isOk() )
+                            printResultType( Colour::ResultSuccess, failedString() + std::string( " - but was ok" ) );
+                        else
+                            printResultType( Colour::Error, failedString() );
+                        printOriginalExpression();
+                        printReconstructedExpression();
+                        printRemainingMessages();
+                        break;
+                    case ResultWas::ThrewException:
+                        printResultType( Colour::Error, failedString() );
+                        printIssue( "unexpected exception with message:" );
+                        printMessage();
+                        printExpressionWas();
+                        printRemainingMessages();
+                        break;
+                    case ResultWas::FatalErrorCondition:
+                        printResultType( Colour::Error, failedString() );
+                        printIssue( "fatal error condition with message:" );
+                        printMessage();
+                        printExpressionWas();
+                        printRemainingMessages();
                         break;
                     case ResultWas::DidntThrowException:
-                        elementName = "failure";
+                        printResultType( Colour::Error, failedString() );
+                        printIssue( "expected exception, got none" );
+                        printExpressionWas();
+                        printRemainingMessages();
                         break;
-
-                    // We should never see these here:
                     case ResultWas::Info:
+                        printResultType( Colour::None, "info" );
+                        printMessage();
+                        printRemainingMessages();
+                        break;
                     case ResultWas::Warning:
-                    case ResultWas::Ok:
+                        printResultType( Colour::None, "warning" );
+                        printMessage();
+                        printRemainingMessages();
+                        break;
+                    case ResultWas::ExplicitFailure:
+                        printResultType( Colour::Error, failedString() );
+                        printIssue( "explicitly" );
+                        printRemainingMessages( Colour::None );
+                        break;
+                    // These cases are here to prevent compiler warnings
                     case ResultWas::Unknown:
                     case ResultWas::FailureBit:
                     case ResultWas::Exception:
-                        elementName = "internalError";
+                        printResultType( Colour::Error, "** internal error **" );
                         break;
                 }
+            }
 
-                XmlWriter::ScopedElement e = xml.scopedElement( elementName );
+        private:
+            void printSourceInfo() const {
+                Colour colourGuard( Colour::FileName );
+                stream << result.getSourceInfo() << ':';
+            }
 
-                xml.writeAttribute( "message", result.getExpandedExpression() );
-                xml.writeAttribute( "type", result.getTestMacroName() );
+            void printResultType( Colour::Code colour, std::string const& passOrFail ) const {
+                if( !passOrFail.empty() ) {
+                    {
+                        Colour colourGuard( colour );
+                        stream << ' ' << passOrFail;
+                    }
+                    stream << ':';
+                }
+            }
 
-                std::ostringstream oss;
-                if( !result.getMessage().empty() )
-                    oss << result.getMessage() << "\n";
-                for( std::vector<MessageInfo>::const_iterator
-                        it = stats.infoMessages.begin(),
-                        itEnd = stats.infoMessages.end();
-                            it != itEnd;
-                            ++it )
-                    if( it->type == ResultWas::Info )
-                        oss << it->message << "\n";
+            void printIssue( std::string const& issue ) const {
+                stream << ' ' << issue;
+            }
 
-                oss << "at " << result.getSourceInfo();
-                xml.writeText( oss.str(), false );
+            void printExpressionWas() {
+                if( result.hasExpression() ) {
+                    stream << ';';
+                    {
+                        Colour colour( dimColour() );
+                        stream << " expression was:";
+                    }
+                    printOriginalExpression();
+                }
             }
-        }
 
-        XmlWriter xml;
-        Timer suiteTimer;
-        std::ostringstream stdOutForSuite;
-        std::ostringstream stdErrForSuite;
-        unsigned int unexpectedExceptions;
+            void printOriginalExpression() const {
+                if( result.hasExpression() ) {
+                    stream << ' ' << result.getExpression();
+                }
+            }
+
+            void printReconstructedExpression() const {
+                if( result.hasExpandedExpression() ) {
+                    {
+                        Colour colour( dimColour() );
+                        stream << " for: ";
+                    }
+                    stream << result.getExpandedExpression();
+                }
+            }
+
+            void printMessage() {
+                if ( itMessage != messages.end() ) {
+                    stream << " '" << itMessage->message << '\'';
+                    ++itMessage;
+                }
+            }
+
+            void printRemainingMessages( Colour::Code colour = dimColour() ) {
+                if ( itMessage == messages.end() )
+                    return;
+
+                // using messages.end() directly yields (or auto) compilation error:
+                std::vector<MessageInfo>::const_iterator itEnd = messages.end();
+                const std::size_t N = static_cast<std::size_t>( std::distance( itMessage, itEnd ) );
+
+                {
+                    Colour colourGuard( colour );
+                    stream << " with " << pluralise( N, "message" ) << ':';
+                }
+
+                for(; itMessage != itEnd; ) {
+                    // If this assertion is a warning ignore any INFO messages
+                    if( printInfoMessages || itMessage->type != ResultWas::Info ) {
+                        stream << " '" << itMessage->message << '\'';
+                        if ( ++itMessage != itEnd ) {
+                            Colour colourGuard( dimColour() );
+                            stream << " and";
+                        }
+                    }
+                }
+            }
+
+        private:
+            std::ostream& stream;
+            AssertionResult const& result;
+            std::vector<MessageInfo> messages;
+            std::vector<MessageInfo>::const_iterator itMessage;
+            bool printInfoMessages;
+        };
+
+        // Colour, message variants:
+        // - white: No tests ran.
+        // -   red: Failed [both/all] N test cases, failed [both/all] M assertions.
+        // - white: Passed [both/all] N test cases (no assertions).
+        // -   red: Failed N tests cases, failed M assertions.
+        // - green: Passed [both/all] N tests cases with M assertions.
+
+        void printTotals( const Totals& totals ) const {
+            if( totals.testCases.total() == 0 ) {
+                stream << "No tests ran.";
+            }
+            else if( totals.testCases.failed == totals.testCases.total() ) {
+                Colour colour( Colour::ResultError );
+                const std::string qualify_assertions_failed =
+                    totals.assertions.failed == totals.assertions.total() ?
+                        bothOrAll( totals.assertions.failed ) : std::string();
+                stream <<
+                    "Failed " << bothOrAll( totals.testCases.failed )
+                              << pluralise( totals.testCases.failed, "test case"  ) << ", "
+                    "failed " << qualify_assertions_failed <<
+                                 pluralise( totals.assertions.failed, "assertion" ) << '.';
+            }
+            else if( totals.assertions.total() == 0 ) {
+                stream <<
+                    "Passed " << bothOrAll( totals.testCases.total() )
+                              << pluralise( totals.testCases.total(), "test case" )
+                              << " (no assertions).";
+            }
+            else if( totals.assertions.failed ) {
+                Colour colour( Colour::ResultError );
+                stream <<
+                    "Failed " << pluralise( totals.testCases.failed, "test case"  ) << ", "
+                    "failed " << pluralise( totals.assertions.failed, "assertion" ) << '.';
+            }
+            else {
+                Colour colour( Colour::ResultSuccess );
+                stream <<
+                    "Passed " << bothOrAll( totals.testCases.passed )
+                              << pluralise( totals.testCases.passed, "test case"  ) <<
+                    " with "  << pluralise( totals.assertions.passed, "assertion" ) << '.';
+            }
+        }
     };
 
-    INTERNAL_CATCH_REGISTER_REPORTER( "junit", JunitReporter )
+    CompactReporter::~CompactReporter() {}
+
+    CATCH_REGISTER_REPORTER( "compact", CompactReporter )
 
 } // end namespace Catch
+// end catch_reporter_compact.cpp
+// start catch_reporter_console.cpp
 
-// #included from: ../reporters/catch_reporter_console.hpp
-#define TWOBLUECUBES_CATCH_REPORTER_CONSOLE_HPP_INCLUDED
+#include <cfloat>
+#include <cstdio>
+
+#if defined(_MSC_VER)
+#pragma warning(push)
+#pragma warning(disable:4061) // Not all labels are EXPLICITLY handled in switch
+                              // Note that 4062 (not all labels are handled
+                              // and default is missing) is enabled
+#endif
 
 namespace Catch {
 
-    struct ConsoleReporter : StreamingReporterBase {
-        ConsoleReporter( ReporterConfig const& _config )
-        :   StreamingReporterBase( _config ),
-            m_headerPrinted( false )
-        {}
+    namespace {
+        std::size_t makeRatio( std::size_t number, std::size_t total ) {
+            std::size_t ratio = total > 0 ? CATCH_CONFIG_CONSOLE_WIDTH * number/ total : 0;
+            return ( ratio == 0 && number > 0 ) ? 1 : ratio;
+        }
+
+        std::size_t& findMax( std::size_t& i, std::size_t& j, std::size_t& k ) {
+            if( i > j && i > k )
+                return i;
+            else if( j > k )
+                return j;
+            else
+                return k;
+        }
+
+        struct ColumnInfo {
+            enum Justification { Left, Right };
+            std::string name;
+            int width;
+            Justification justification;
+        };
+        struct ColumnBreak {};
+        struct RowBreak {};
+
+        class TablePrinter {
+            std::ostream& m_os;
+            std::vector<ColumnInfo> m_columnInfos;
+            std::ostringstream m_oss;
+            int m_currentColumn = -1;
+            bool m_isOpen = false;
+
+        public:
+            TablePrinter( std::ostream& os, std::vector<ColumnInfo> const& columnInfos )
+            :   m_os( os ),
+                m_columnInfos( columnInfos )
+            {}
 
-        virtual ~ConsoleReporter() CATCH_OVERRIDE;
+            auto columnInfos() const -> std::vector<ColumnInfo> const& {
+                return m_columnInfos;
+            }
+
+            void open() {
+                if( !m_isOpen ) {
+                    m_isOpen = true;
+                    *this << RowBreak();
+                    for( auto const& info : m_columnInfos )
+                        *this << info.name << ColumnBreak();
+                    *this << RowBreak();
+                    m_os << Catch::getLineOfChars<'-'>() << "\n";
+                }
+            }
+            void close() {
+                if( m_isOpen ) {
+                    *this << RowBreak();
+                    m_os << std::endl;
+                    m_isOpen = false;
+                }
+            }
+
+            template<typename T>
+            friend TablePrinter& operator << ( TablePrinter& tp, T const& value ) {
+                tp.m_oss << value;
+                return tp;
+            }
+
+            friend TablePrinter& operator << ( TablePrinter& tp, ColumnBreak ) {
+                auto colStr = tp.m_oss.str();
+                // This takes account of utf8 encodings
+                auto strSize = Catch::StringRef( colStr ).numberOfCharacters();
+                tp.m_oss.str("");
+                tp.open();
+                if( tp.m_currentColumn == static_cast<int>(tp.m_columnInfos.size()-1) ) {
+                    tp.m_currentColumn = -1;
+                    tp.m_os << "\n";
+                }
+                tp.m_currentColumn++;
+
+                auto colInfo = tp.m_columnInfos[tp.m_currentColumn];
+                auto padding = ( strSize+2 < static_cast<std::size_t>( colInfo.width ) )
+                    ? std::string( colInfo.width-(strSize+2), ' ' )
+                    : std::string();
+                if( colInfo.justification == ColumnInfo::Left )
+                    tp.m_os << colStr << padding << " ";
+                else
+                    tp.m_os << padding << colStr << " ";
+                return tp;
+            }
+
+            friend TablePrinter& operator << ( TablePrinter& tp, RowBreak ) {
+                if( tp.m_currentColumn > 0 ) {
+                    tp.m_os << "\n";
+                    tp.m_currentColumn = -1;
+                }
+                return tp;
+            }
+        };
+
+        class Duration {
+            enum class Unit {
+                Auto,
+                Nanoseconds,
+                Microseconds,
+                Milliseconds,
+                Seconds,
+                Minutes
+            };
+            static const uint64_t s_nanosecondsInAMicrosecond = 1000;
+            static const uint64_t s_nanosecondsInAMillisecond = 1000*s_nanosecondsInAMicrosecond;
+            static const uint64_t s_nanosecondsInASecond = 1000*s_nanosecondsInAMillisecond;
+            static const uint64_t s_nanosecondsInAMinute = 60*s_nanosecondsInASecond;
+
+            uint64_t m_inNanoseconds;
+            Unit m_units;
+
+        public:
+            Duration( uint64_t inNanoseconds, Unit units = Unit::Auto )
+            :   m_inNanoseconds( inNanoseconds ),
+                m_units( units )
+            {
+                if( m_units == Unit::Auto ) {
+                    if( m_inNanoseconds < s_nanosecondsInAMicrosecond )
+                        m_units = Unit::Nanoseconds;
+                    else if( m_inNanoseconds < s_nanosecondsInAMillisecond )
+                        m_units = Unit::Microseconds;
+                    else if( m_inNanoseconds < s_nanosecondsInASecond )
+                        m_units = Unit::Milliseconds;
+                    else if( m_inNanoseconds < s_nanosecondsInAMinute )
+                        m_units = Unit::Seconds;
+                    else
+                        m_units = Unit::Minutes;
+                }
+
+            }
+
+            auto value() const -> double {
+                switch( m_units ) {
+                    case Unit::Microseconds:
+                        return m_inNanoseconds / static_cast<double>( s_nanosecondsInAMicrosecond );
+                    case Unit::Milliseconds:
+                        return m_inNanoseconds / static_cast<double>( s_nanosecondsInAMillisecond );
+                    case Unit::Seconds:
+                        return m_inNanoseconds / static_cast<double>( s_nanosecondsInASecond );
+                    case Unit::Minutes:
+                        return m_inNanoseconds / static_cast<double>( s_nanosecondsInAMinute );
+                    default:
+                        return static_cast<double>( m_inNanoseconds );
+                }
+            }
+            auto unitsAsString() const -> std::string {
+                switch( m_units ) {
+                    case Unit::Nanoseconds:
+                        return "ns";
+                    case Unit::Microseconds:
+                        return "µs";
+                    case Unit::Milliseconds:
+                        return "ms";
+                    case Unit::Seconds:
+                        return "s";
+                    case Unit::Minutes:
+                        return "m";
+                    default:
+                        return "** internal error **";
+                }
+
+            }
+            friend auto operator << ( std::ostream& os, Duration const& duration ) -> std::ostream& {
+                return os << duration.value() << " " << duration.unitsAsString();
+            }
+        };
+    } // end anon namespace
+
+    struct ConsoleReporter : StreamingReporterBase<ConsoleReporter> {
+        TablePrinter m_tablePrinter;
+
+        ConsoleReporter( ReporterConfig const& config )
+        :   StreamingReporterBase( config ),
+            m_tablePrinter( config.stream(),
+                            {
+                                { "benchmark name", CATCH_CONFIG_CONSOLE_WIDTH-32, ColumnInfo::Left },
+                                { "iters", 8, ColumnInfo::Right },
+                                { "elapsed ns", 14, ColumnInfo::Right },
+                                { "average", 14, ColumnInfo::Right }
+                            } )
+        {}
+        ~ConsoleReporter() override;
         static std::string getDescription() {
             return "Reports test results as plain lines of text";
         }
 
-        virtual void noMatchingTestCases( std::string const& spec ) CATCH_OVERRIDE {
-            stream << "No test cases matched '" << spec << "'" << std::endl;
+        void noMatchingTestCases( std::string const& spec ) override {
+            stream << "No test cases matched '" << spec << '\'' << std::endl;
         }
 
-        virtual void assertionStarting( AssertionInfo const& ) CATCH_OVERRIDE {
+        void assertionStarting( AssertionInfo const& ) override {
         }
 
-        virtual bool assertionEnded( AssertionStats const& _assertionStats ) CATCH_OVERRIDE {
+        bool assertionEnded( AssertionStats const& _assertionStats ) override {
             AssertionResult const& result = _assertionStats.assertionResult;
 
-            bool printInfoMessages = true;
+            bool includeResults = m_config->includeSuccessfulResults() || !result.isOk();
 
-            // Drop out if result was successful and we're not printing those
-            if( !m_config->includeSuccessfulResults() && result.isOk() ) {
-                if( result.getResultType() != ResultWas::Warning )
-                    return false;
-                printInfoMessages = false;
-            }
+            // Drop out if result was successful but we're not printing them.
+            if( !includeResults && result.getResultType() != ResultWas::Warning )
+                return false;
 
             lazyPrint();
 
-            AssertionPrinter printer( stream, _assertionStats, printInfoMessages );
+            AssertionPrinter printer( stream, _assertionStats, includeResults );
             printer.print();
             stream << std::endl;
             return true;
         }
 
-        virtual void sectionStarting( SectionInfo const& _sectionInfo ) CATCH_OVERRIDE {
+        void sectionStarting( SectionInfo const& _sectionInfo ) override {
             m_headerPrinted = false;
             StreamingReporterBase::sectionStarting( _sectionInfo );
         }
-        virtual void sectionEnded( SectionStats const& _sectionStats ) CATCH_OVERRIDE {
+        void sectionEnded( SectionStats const& _sectionStats ) override {
+            m_tablePrinter.close();
             if( _sectionStats.missingAssertions ) {
                 lazyPrint();
                 Colour colour( Colour::ResultError );
@@ -9564,32 +10731,53 @@ namespace Catch {
                     stream << "\nNo assertions in test case";
                 stream << " '" << _sectionStats.sectionInfo.name << "'\n" << std::endl;
             }
+            if( m_config->showDurations() == ShowDurations::Always ) {
+                stream << getFormattedDuration(_sectionStats.durationInSeconds) << " s: " << _sectionStats.sectionInfo.name << std::endl;
+            }
             if( m_headerPrinted ) {
-                if( m_config->showDurations() == ShowDurations::Always )
-                    stream << "Completed in " << _sectionStats.durationInSeconds << "s" << std::endl;
                 m_headerPrinted = false;
             }
-            else {
-                if( m_config->showDurations() == ShowDurations::Always )
-                    stream << _sectionStats.sectionInfo.name << " completed in " << _sectionStats.durationInSeconds << "s" << std::endl;
-            }
             StreamingReporterBase::sectionEnded( _sectionStats );
         }
 
-        virtual void testCaseEnded( TestCaseStats const& _testCaseStats ) CATCH_OVERRIDE {
+        void benchmarkStarting( BenchmarkInfo const& info ) override {
+            lazyPrintWithoutClosingBenchmarkTable();
+
+            auto nameCol = Column( info.name ).width( m_tablePrinter.columnInfos()[0].width-2 );
+
+            bool firstLine = true;
+            for( auto line : nameCol ) {
+                if( !firstLine )
+                    m_tablePrinter << ColumnBreak() << ColumnBreak() << ColumnBreak();
+                else
+                    firstLine = false;
+
+                m_tablePrinter << line << ColumnBreak();
+            }
+        }
+        void benchmarkEnded( BenchmarkStats const& stats ) override {
+            Duration average( stats.elapsedTimeInNanoseconds/stats.iterations );
+            m_tablePrinter
+                    << stats.iterations << ColumnBreak()
+                    << stats.elapsedTimeInNanoseconds << ColumnBreak()
+                    << average << ColumnBreak();
+        }
+
+        void testCaseEnded( TestCaseStats const& _testCaseStats ) override {
+            m_tablePrinter.close();
             StreamingReporterBase::testCaseEnded( _testCaseStats );
             m_headerPrinted = false;
         }
-        virtual void testGroupEnded( TestGroupStats const& _testGroupStats ) CATCH_OVERRIDE {
+        void testGroupEnded( TestGroupStats const& _testGroupStats ) override {
             if( currentGroupInfo.used ) {
                 printSummaryDivider();
                 stream << "Summary for group '" << _testGroupStats.groupInfo.name << "':\n";
                 printTotals( _testGroupStats.totals );
-                stream << "\n" << std::endl;
+                stream << '\n' << std::endl;
             }
             StreamingReporterBase::testGroupEnded( _testGroupStats );
         }
-        virtual void testRunEnded( TestRunStats const& _testRunStats ) CATCH_OVERRIDE {
+        void testRunEnded( TestRunStats const& _testRunStats ) override {
             printTotalsDivider( _testRunStats.totals );
             printTotals( _testRunStats.totals );
             stream << std::endl;
@@ -9599,8 +10787,9 @@ namespace Catch {
     private:
 
         class AssertionPrinter {
-            void operator= ( AssertionPrinter const& );
         public:
+            AssertionPrinter& operator= ( AssertionPrinter const& ) = delete;
+            AssertionPrinter( AssertionPrinter const& ) = delete;
             AssertionPrinter( std::ostream& _stream, AssertionStats const& _stats, bool _printInfoMessages )
             :   stream( _stream ),
                 stats( _stats ),
@@ -9637,7 +10826,11 @@ namespace Catch {
                     case ResultWas::ThrewException:
                         colour = Colour::Error;
                         passOrFail = "FAILED";
-                        messageLabel = "due to unexpected exception with message";
+                        messageLabel = "due to unexpected exception with ";
+                        if (_stats.infoMessages.size() == 1)
+                            messageLabel += "message";
+                        if (_stats.infoMessages.size() > 1)
+                            messageLabel += "messages";
                         break;
                     case ResultWas::FatalErrorCondition:
                         colour = Colour::Error;
@@ -9677,13 +10870,13 @@ namespace Catch {
                 printSourceInfo();
                 if( stats.totals.assertions.total() > 0 ) {
                     if( result.isOk() )
-                        stream << "\n";
+                        stream << '\n';
                     printResultType();
                     printOriginalExpression();
                     printReconstructedExpression();
                 }
                 else {
-                    stream << "\n";
+                    stream << '\n';
                 }
                 printMessage();
             }
@@ -9700,25 +10893,23 @@ namespace Catch {
                     Colour colourGuard( Colour::OriginalExpression );
                     stream  << "  ";
                     stream << result.getExpressionInMacro();
-                    stream << "\n";
+                    stream << '\n';
                 }
             }
             void printReconstructedExpression() const {
                 if( result.hasExpandedExpression() ) {
                     stream << "with expansion:\n";
                     Colour colourGuard( Colour::ReconstructedExpression );
-                    stream << Text( result.getExpandedExpression(), TextAttributes().setIndent(2) ) << "\n";
+                    stream << Column( result.getExpandedExpression() ).indent(2) << '\n';
                 }
             }
             void printMessage() const {
                 if( !messageLabel.empty() )
-                    stream << messageLabel << ":" << "\n";
-                for( std::vector<MessageInfo>::const_iterator it = messages.begin(), itEnd = messages.end();
-                        it != itEnd;
-                        ++it ) {
+                    stream << messageLabel << ':' << '\n';
+                for( auto const& msg : messages ) {
                     // If this assertion is a warning ignore any INFO messages
-                    if( printInfoMessages || it->type != ResultWas::Info )
-                        stream << Text( it->message, TextAttributes().setIndent(2) ) << "\n";
+                    if( printInfoMessages || msg.type != ResultWas::Info )
+                        stream << Column( msg.message ).indent(2) << '\n';
                 }
             }
             void printSourceInfo() const {
@@ -9739,6 +10930,12 @@ namespace Catch {
 
         void lazyPrint() {
 
+            m_tablePrinter.close();
+            lazyPrintWithoutClosingBenchmarkTable();
+        }
+
+        void lazyPrintWithoutClosingBenchmarkTable() {
+
             if( !currentTestRunInfo.used )
                 lazyPrintRunInfo();
             if( !currentGroupInfo.used )
@@ -9750,10 +10947,10 @@ namespace Catch {
             }
         }
         void lazyPrintRunInfo() {
-            stream  << "\n" << getLineOfChars<'~'>() << "\n";
+            stream  << '\n' << getLineOfChars<'~'>() << '\n';
             Colour colour( Colour::SecondaryText );
             stream  << currentTestRunInfo->name
-                    << " is a Catch v"  << libraryVersion << " host application.\n"
+                    << " is a Catch v"  << libraryVersion() << " host application.\n"
                     << "Run with -? for options\n\n";
 
             if( m_config->rngSeed() != 0 )
@@ -9774,29 +10971,29 @@ namespace Catch {
             if( m_sectionStack.size() > 1 ) {
                 Colour colourGuard( Colour::Headers );
 
-                std::vector<SectionInfo>::const_iterator
+                auto
                     it = m_sectionStack.begin()+1, // Skip first section (test case)
                     itEnd = m_sectionStack.end();
                 for( ; it != itEnd; ++it )
                     printHeaderString( it->name, 2 );
             }
 
-            SourceLineInfo lineInfo = m_sectionStack.front().lineInfo;
+            SourceLineInfo lineInfo = m_sectionStack.back().lineInfo;
 
             if( !lineInfo.empty() ){
-                stream << getLineOfChars<'-'>() << "\n";
+                stream << getLineOfChars<'-'>() << '\n';
                 Colour colourGuard( Colour::FileName );
-                stream << lineInfo << "\n";
+                stream << lineInfo << '\n';
             }
-            stream << getLineOfChars<'.'>() << "\n" << std::endl;
+            stream << getLineOfChars<'.'>() << '\n' << std::endl;
         }
 
         void printClosedHeader( std::string const& _name ) {
             printOpenHeader( _name );
-            stream << getLineOfChars<'.'>() << "\n";
+            stream << getLineOfChars<'.'>() << '\n';
         }
         void printOpenHeader( std::string const& _name ) {
-            stream  << getLineOfChars<'-'>() << "\n";
+            stream  << getLineOfChars<'-'>() << '\n';
             {
                 Colour colourGuard( Colour::Headers );
                 printHeaderString( _name );
@@ -9811,9 +11008,7 @@ namespace Catch {
                 i+=2;
             else
                 i = 0;
-            stream << Text( _string, TextAttributes()
-                                        .setIndent( indent+i)
-                                        .setInitialIndent( indent ) ) << "\n";
+            stream << Column( _string ).indent( indent+i ).initialIndent( indent ) << '\n';
         }
 
         struct SummaryColumn {
@@ -9826,11 +11021,11 @@ namespace Catch {
                 std::ostringstream oss;
                 oss << count;
                 std::string row = oss.str();
-                for( std::vector<std::string>::iterator it = rows.begin(); it != rows.end(); ++it ) {
-                    while( it->size() < row.size() )
-                        *it = " " + *it;
-                    while( it->size() > row.size() )
-                        row = " " + row;
+                for( auto& oldRow : rows ) {
+                    while( oldRow.size() < row.size() )
+                        oldRow = ' ' + oldRow;
+                    while( oldRow.size() > row.size() )
+                        row = ' ' + row;
                 }
                 rows.push_back( row );
                 return *this;
@@ -9850,8 +11045,8 @@ namespace Catch {
                 stream << Colour( Colour::ResultSuccess ) << "All tests passed";
                 stream << " ("
                         << pluralise( totals.assertions.passed, "assertion" ) << " in "
-                        << pluralise( totals.testCases.passed, "test case" ) << ")"
-                        << "\n";
+                        << pluralise( totals.testCases.passed, "test case" ) << ')'
+                        << '\n';
             }
             else {
 
@@ -9874,9 +11069,9 @@ namespace Catch {
             }
         }
         void printSummaryRow( std::string const& label, std::vector<SummaryColumn> const& cols, std::size_t row ) {
-            for( std::vector<SummaryColumn>::const_iterator it = cols.begin(); it != cols.end(); ++it ) {
-                std::string value = it->rows[row];
-                if( it->label.empty() ) {
+            for( auto col : cols ) {
+                std::string value = col.rows[row];
+                if( col.label.empty() ) {
                     stream << label << ": ";
                     if( value != "0" )
                         stream << value;
@@ -9885,24 +11080,11 @@ namespace Catch {
                 }
                 else if( value != "0" ) {
                     stream  << Colour( Colour::LightGrey ) << " | ";
-                    stream  << Colour( it->colour )
-                            << value << " " << it->label;
+                    stream  << Colour( col.colour )
+                            << value << ' ' << col.label;
                 }
             }
-            stream << "\n";
-        }
-
-        static std::size_t makeRatio( std::size_t number, std::size_t total ) {
-            std::size_t ratio = total > 0 ? CATCH_CONFIG_CONSOLE_WIDTH * number/ total : 0;
-            return ( ratio == 0 && number > 0 ) ? 1 : ratio;
-        }
-        static std::size_t& findMax( std::size_t& i, std::size_t& j, std::size_t& k ) {
-            if( i > j && i > k )
-                return i;
-            else if( j > k )
-                return j;
-            else
-                return k;
+            stream << '\n';
         }
 
         void printTotalsDivider( Totals const& totals ) {
@@ -9925,385 +11107,612 @@ namespace Catch {
             else {
                 stream << Colour( Colour::Warning ) << std::string( CATCH_CONFIG_CONSOLE_WIDTH-1, '=' );
             }
-            stream << "\n";
+            stream << '\n';
         }
         void printSummaryDivider() {
-            stream << getLineOfChars<'-'>() << "\n";
+            stream << getLineOfChars<'-'>() << '\n';
         }
 
     private:
-        bool m_headerPrinted;
+        bool m_headerPrinted = false;
     };
 
-    INTERNAL_CATCH_REGISTER_REPORTER( "console", ConsoleReporter )
+    CATCH_REGISTER_REPORTER( "console", ConsoleReporter )
+
+    ConsoleReporter::~ConsoleReporter() {}
 
 } // end namespace Catch
 
-// #included from: ../reporters/catch_reporter_compact.hpp
-#define TWOBLUECUBES_CATCH_REPORTER_COMPACT_HPP_INCLUDED
+#if defined(_MSC_VER)
+#pragma warning(pop)
+#endif
+// end catch_reporter_console.cpp
+// start catch_reporter_junit.cpp
+
+#include <assert.h>
+
+#include <ctime>
+#include <algorithm>
 
 namespace Catch {
 
-    struct CompactReporter : StreamingReporterBase {
+    namespace {
+        std::string getCurrentTimestamp() {
+            // Beware, this is not reentrant because of backward compatibility issues
+            // Also, UTC only, again because of backward compatibility (%z is C++11)
+            time_t rawtime;
+            std::time(&rawtime);
+            auto const timeStampSize = sizeof("2017-01-16T17:06:45Z");
 
-        CompactReporter( ReporterConfig const& _config )
-        : StreamingReporterBase( _config )
-        {}
+#ifdef _MSC_VER
+            std::tm timeInfo = {};
+            gmtime_s(&timeInfo, &rawtime);
+#else
+            std::tm* timeInfo;
+            timeInfo = std::gmtime(&rawtime);
+#endif
+
+            char timeStamp[timeStampSize];
+            const char * const fmt = "%Y-%m-%dT%H:%M:%SZ";
+
+#ifdef _MSC_VER
+            std::strftime(timeStamp, timeStampSize, fmt, &timeInfo);
+#else
+            std::strftime(timeStamp, timeStampSize, fmt, timeInfo);
+#endif
+            return std::string(timeStamp);
+        }
+
+        std::string fileNameTag(const std::vector<std::string> &tags) {
+            auto it = std::find_if(begin(tags),
+                                   end(tags),
+                                   [] (std::string const& tag) {return tag.front() == '#'; });
+            if (it != tags.end())
+                return it->substr(1);
+            return std::string();
+        }
+    }
+
+    class JunitReporter : public CumulativeReporterBase<JunitReporter> {
+    public:
+        JunitReporter( ReporterConfig const& _config )
+        :   CumulativeReporterBase( _config ),
+            xml( _config.stream() )
+        {
+            m_reporterPrefs.shouldRedirectStdOut = true;
+        }
 
-        virtual ~CompactReporter();
+        ~JunitReporter() override;
 
         static std::string getDescription() {
-            return "Reports test results on a single line, suitable for IDEs";
+            return "Reports test results in an XML format that looks like Ant's junitreport target";
         }
 
-        virtual ReporterPreferences getPreferences() const {
-            ReporterPreferences prefs;
-            prefs.shouldRedirectStdOut = false;
-            return prefs;
+        void noMatchingTestCases( std::string const& /*spec*/ ) override {}
+
+        void testRunStarting( TestRunInfo const& runInfo ) override {
+            CumulativeReporterBase::testRunStarting( runInfo );
+            xml.startElement( "testsuites" );
         }
 
-        virtual void noMatchingTestCases( std::string const& spec ) {
-            stream << "No test cases matched '" << spec << "'" << std::endl;
+        void testGroupStarting( GroupInfo const& groupInfo ) override {
+            suiteTimer.start();
+            stdOutForSuite.str("");
+            stdErrForSuite.str("");
+            unexpectedExceptions = 0;
+            CumulativeReporterBase::testGroupStarting( groupInfo );
         }
 
-        virtual void assertionStarting( AssertionInfo const& ) {
+        void testCaseStarting( TestCaseInfo const& testCaseInfo ) override {
+            m_okToFail = testCaseInfo.okToFail();
+        }
+        bool assertionEnded( AssertionStats const& assertionStats ) override {
+            if( assertionStats.assertionResult.getResultType() == ResultWas::ThrewException && !m_okToFail )
+                unexpectedExceptions++;
+            return CumulativeReporterBase::assertionEnded( assertionStats );
         }
 
-        virtual bool assertionEnded( AssertionStats const& _assertionStats ) {
-            AssertionResult const& result = _assertionStats.assertionResult;
+        void testCaseEnded( TestCaseStats const& testCaseStats ) override {
+            stdOutForSuite << testCaseStats.stdOut;
+            stdErrForSuite << testCaseStats.stdErr;
+            CumulativeReporterBase::testCaseEnded( testCaseStats );
+        }
 
-            bool printInfoMessages = true;
+        void testGroupEnded( TestGroupStats const& testGroupStats ) override {
+            double suiteTime = suiteTimer.getElapsedSeconds();
+            CumulativeReporterBase::testGroupEnded( testGroupStats );
+            writeGroup( *m_testGroups.back(), suiteTime );
+        }
 
-            // Drop out if result was successful and we're not printing those
-            if( !m_config->includeSuccessfulResults() && result.isOk() ) {
-                if( result.getResultType() != ResultWas::Warning )
-                    return false;
-                printInfoMessages = false;
-            }
+        void testRunEndedCumulative() override {
+            xml.endElement();
+        }
 
-            AssertionPrinter printer( stream, _assertionStats, printInfoMessages );
-            printer.print();
+        void writeGroup( TestGroupNode const& groupNode, double suiteTime ) {
+            XmlWriter::ScopedElement e = xml.scopedElement( "testsuite" );
+            TestGroupStats const& stats = groupNode.value;
+            xml.writeAttribute( "name", stats.groupInfo.name );
+            xml.writeAttribute( "errors", unexpectedExceptions );
+            xml.writeAttribute( "failures", stats.totals.assertions.failed-unexpectedExceptions );
+            xml.writeAttribute( "tests", stats.totals.assertions.total() );
+            xml.writeAttribute( "hostname", "tbd" ); // !TBD
+            if( m_config->showDurations() == ShowDurations::Never )
+                xml.writeAttribute( "time", "" );
+            else
+                xml.writeAttribute( "time", suiteTime );
+            xml.writeAttribute( "timestamp", getCurrentTimestamp() );
 
-            stream << std::endl;
-            return true;
+            // Write test cases
+            for( auto const& child : groupNode.children )
+                writeTestCase( *child );
+
+            xml.scopedElement( "system-out" ).writeText( trim( stdOutForSuite.str() ), false );
+            xml.scopedElement( "system-err" ).writeText( trim( stdErrForSuite.str() ), false );
         }
 
-        virtual void testRunEnded( TestRunStats const& _testRunStats ) {
-            printTotals( _testRunStats.totals );
-            stream << "\n" << std::endl;
-            StreamingReporterBase::testRunEnded( _testRunStats );
+        void writeTestCase( TestCaseNode const& testCaseNode ) {
+            TestCaseStats const& stats = testCaseNode.value;
+
+            // All test cases have exactly one section - which represents the
+            // test case itself. That section may have 0-n nested sections
+            assert( testCaseNode.children.size() == 1 );
+            SectionNode const& rootSection = *testCaseNode.children.front();
+
+            std::string className = stats.testInfo.className;
+
+            if( className.empty() ) {
+                className = fileNameTag(stats.testInfo.tags);
+                if ( className.empty() )
+                    className = "global";
+            }
+
+            if ( !m_config->name().empty() )
+                className = m_config->name() + "." + className;
+
+            writeSection( className, "", rootSection );
         }
 
-    private:
-        class AssertionPrinter {
-            void operator= ( AssertionPrinter const& );
-        public:
-            AssertionPrinter( std::ostream& _stream, AssertionStats const& _stats, bool _printInfoMessages )
-            : stream( _stream )
-            , stats( _stats )
-            , result( _stats.assertionResult )
-            , messages( _stats.infoMessages )
-            , itMessage( _stats.infoMessages.begin() )
-            , printInfoMessages( _printInfoMessages )
-            {}
+        void writeSection(  std::string const& className,
+                            std::string const& rootName,
+                            SectionNode const& sectionNode ) {
+            std::string name = trim( sectionNode.stats.sectionInfo.name );
+            if( !rootName.empty() )
+                name = rootName + '/' + name;
 
-            void print() {
-                printSourceInfo();
+            if( !sectionNode.assertions.empty() ||
+                !sectionNode.stdOut.empty() ||
+                !sectionNode.stdErr.empty() ) {
+                XmlWriter::ScopedElement e = xml.scopedElement( "testcase" );
+                if( className.empty() ) {
+                    xml.writeAttribute( "classname", name );
+                    xml.writeAttribute( "name", "root" );
+                }
+                else {
+                    xml.writeAttribute( "classname", className );
+                    xml.writeAttribute( "name", name );
+                }
+                xml.writeAttribute( "time", ::Catch::Detail::stringify( sectionNode.stats.durationInSeconds ) );
 
-                itMessage = messages.begin();
+                writeAssertions( sectionNode );
 
+                if( !sectionNode.stdOut.empty() )
+                    xml.scopedElement( "system-out" ).writeText( trim( sectionNode.stdOut ), false );
+                if( !sectionNode.stdErr.empty() )
+                    xml.scopedElement( "system-err" ).writeText( trim( sectionNode.stdErr ), false );
+            }
+            for( auto const& childNode : sectionNode.childSections )
+                if( className.empty() )
+                    writeSection( name, "", *childNode );
+                else
+                    writeSection( className, name, *childNode );
+        }
+
+        void writeAssertions( SectionNode const& sectionNode ) {
+            for( auto const& assertion : sectionNode.assertions )
+                writeAssertion( assertion );
+        }
+        void writeAssertion( AssertionStats const& stats ) {
+            AssertionResult const& result = stats.assertionResult;
+            if( !result.isOk() ) {
+                std::string elementName;
                 switch( result.getResultType() ) {
-                    case ResultWas::Ok:
-                        printResultType( Colour::ResultSuccess, passedString() );
-                        printOriginalExpression();
-                        printReconstructedExpression();
-                        if ( ! result.hasExpression() )
-                            printRemainingMessages( Colour::None );
-                        else
-                            printRemainingMessages();
-                        break;
-                    case ResultWas::ExpressionFailed:
-                        if( result.isOk() )
-                            printResultType( Colour::ResultSuccess, failedString() + std::string( " - but was ok" ) );
-                        else
-                            printResultType( Colour::Error, failedString() );
-                        printOriginalExpression();
-                        printReconstructedExpression();
-                        printRemainingMessages();
-                        break;
                     case ResultWas::ThrewException:
-                        printResultType( Colour::Error, failedString() );
-                        printIssue( "unexpected exception with message:" );
-                        printMessage();
-                        printExpressionWas();
-                        printRemainingMessages();
-                        break;
                     case ResultWas::FatalErrorCondition:
-                        printResultType( Colour::Error, failedString() );
-                        printIssue( "fatal error condition with message:" );
-                        printMessage();
-                        printExpressionWas();
-                        printRemainingMessages();
+                        elementName = "error";
+                        break;
+                    case ResultWas::ExplicitFailure:
+                        elementName = "failure";
+                        break;
+                    case ResultWas::ExpressionFailed:
+                        elementName = "failure";
                         break;
                     case ResultWas::DidntThrowException:
-                        printResultType( Colour::Error, failedString() );
-                        printIssue( "expected exception, got none" );
-                        printExpressionWas();
-                        printRemainingMessages();
+                        elementName = "failure";
                         break;
+
+                    // We should never see these here:
                     case ResultWas::Info:
-                        printResultType( Colour::None, "info" );
-                        printMessage();
-                        printRemainingMessages();
-                        break;
                     case ResultWas::Warning:
-                        printResultType( Colour::None, "warning" );
-                        printMessage();
-                        printRemainingMessages();
-                        break;
-                    case ResultWas::ExplicitFailure:
-                        printResultType( Colour::Error, failedString() );
-                        printIssue( "explicitly" );
-                        printRemainingMessages( Colour::None );
-                        break;
-                    // These cases are here to prevent compiler warnings
+                    case ResultWas::Ok:
                     case ResultWas::Unknown:
                     case ResultWas::FailureBit:
                     case ResultWas::Exception:
-                        printResultType( Colour::Error, "** internal error **" );
+                        elementName = "internalError";
                         break;
                 }
+
+                XmlWriter::ScopedElement e = xml.scopedElement( elementName );
+
+                xml.writeAttribute( "message", result.getExpandedExpression() );
+                xml.writeAttribute( "type", result.getTestMacroName() );
+
+                std::ostringstream oss;
+                if( !result.getMessage().empty() )
+                    oss << result.getMessage() << '\n';
+                for( auto const& msg : stats.infoMessages )
+                    if( msg.type == ResultWas::Info )
+                        oss << msg.message << '\n';
+
+                oss << "at " << result.getSourceInfo();
+                xml.writeText( oss.str(), false );
             }
+        }
 
-        private:
-            // Colour::LightGrey
+        XmlWriter xml;
+        Timer suiteTimer;
+        std::ostringstream stdOutForSuite;
+        std::ostringstream stdErrForSuite;
+        unsigned int unexpectedExceptions = 0;
+        bool m_okToFail = false;
+    };
+
+    JunitReporter::~JunitReporter() {}
+    CATCH_REGISTER_REPORTER( "junit", JunitReporter )
 
-            static Colour::Code dimColour() { return Colour::FileName; }
+} // end namespace Catch
+// end catch_reporter_junit.cpp
+// start catch_reporter_multi.cpp
 
-#ifdef CATCH_PLATFORM_MAC
-            static const char* failedString() { return "FAILED"; }
-            static const char* passedString() { return "PASSED"; }
-#else
-            static const char* failedString() { return "failed"; }
-            static const char* passedString() { return "passed"; }
+namespace Catch {
+
+    void MultipleReporters::add( IStreamingReporterPtr&& reporter ) {
+        m_reporters.push_back( std::move( reporter ) );
+    }
+
+    ReporterPreferences MultipleReporters::getPreferences() const {
+        return m_reporters[0]->getPreferences();
+    }
+
+    std::set<Verbosity> MultipleReporters::getSupportedVerbosities() {
+        return std::set<Verbosity>{ };
+    }
+
+    void MultipleReporters::noMatchingTestCases( std::string const& spec ) {
+        for( auto const& reporter : m_reporters )
+            reporter->noMatchingTestCases( spec );
+    }
+
+    void MultipleReporters::benchmarkStarting( BenchmarkInfo const& benchmarkInfo ) {
+        for( auto const& reporter : m_reporters )
+            reporter->benchmarkStarting( benchmarkInfo );
+    }
+    void MultipleReporters::benchmarkEnded( BenchmarkStats const& benchmarkStats ) {
+        for( auto const& reporter : m_reporters )
+            reporter->benchmarkEnded( benchmarkStats );
+    }
+
+    void MultipleReporters::testRunStarting( TestRunInfo const& testRunInfo ) {
+        for( auto const& reporter : m_reporters )
+            reporter->testRunStarting( testRunInfo );
+    }
+
+    void MultipleReporters::testGroupStarting( GroupInfo const& groupInfo ) {
+        for( auto const& reporter : m_reporters )
+            reporter->testGroupStarting( groupInfo );
+    }
+
+    void MultipleReporters::testCaseStarting( TestCaseInfo const& testInfo ) {
+        for( auto const& reporter : m_reporters )
+            reporter->testCaseStarting( testInfo );
+    }
+
+    void MultipleReporters::sectionStarting( SectionInfo const& sectionInfo ) {
+        for( auto const& reporter : m_reporters )
+            reporter->sectionStarting( sectionInfo );
+    }
+
+    void MultipleReporters::assertionStarting( AssertionInfo const& assertionInfo ) {
+        for( auto const& reporter : m_reporters )
+            reporter->assertionStarting( assertionInfo );
+    }
+
+    // The return value indicates if the messages buffer should be cleared:
+    bool MultipleReporters::assertionEnded( AssertionStats const& assertionStats ) {
+        bool clearBuffer = false;
+        for( auto const& reporter : m_reporters )
+            clearBuffer |= reporter->assertionEnded( assertionStats );
+        return clearBuffer;
+    }
+
+    void MultipleReporters::sectionEnded( SectionStats const& sectionStats ) {
+        for( auto const& reporter : m_reporters )
+            reporter->sectionEnded( sectionStats );
+    }
+
+    void MultipleReporters::testCaseEnded( TestCaseStats const& testCaseStats ) {
+        for( auto const& reporter : m_reporters )
+            reporter->testCaseEnded( testCaseStats );
+    }
+
+    void MultipleReporters::testGroupEnded( TestGroupStats const& testGroupStats ) {
+        for( auto const& reporter : m_reporters )
+            reporter->testGroupEnded( testGroupStats );
+    }
+
+    void MultipleReporters::testRunEnded( TestRunStats const& testRunStats ) {
+        for( auto const& reporter : m_reporters )
+            reporter->testRunEnded( testRunStats );
+    }
+
+    void MultipleReporters::skipTest( TestCaseInfo const& testInfo ) {
+        for( auto const& reporter : m_reporters )
+            reporter->skipTest( testInfo );
+    }
+
+    bool MultipleReporters::isMulti() const {
+        return true;
+    }
+
+} // end namespace Catch
+// end catch_reporter_multi.cpp
+// start catch_reporter_xml.cpp
+
+#if defined(_MSC_VER)
+#pragma warning(push)
+#pragma warning(disable:4061) // Not all labels are EXPLICITLY handled in switch
+                              // Note that 4062 (not all labels are handled
+                              // and default is missing) is enabled
 #endif
 
-            void printSourceInfo() const {
-                Colour colourGuard( Colour::FileName );
-                stream << result.getSourceInfo() << ":";
-            }
+namespace Catch {
+    class XmlReporter : public StreamingReporterBase<XmlReporter> {
+    public:
+        XmlReporter( ReporterConfig const& _config )
+        :   StreamingReporterBase( _config ),
+            m_xml(_config.stream())
+        {
+            m_reporterPrefs.shouldRedirectStdOut = true;
+        }
 
-            void printResultType( Colour::Code colour, std::string passOrFail ) const {
-                if( !passOrFail.empty() ) {
-                    {
-                        Colour colourGuard( colour );
-                        stream << " " << passOrFail;
-                    }
-                    stream << ":";
-                }
-            }
+        ~XmlReporter() override;
+
+        static std::string getDescription() {
+            return "Reports test results as an XML document";
+        }
+
+        virtual std::string getStylesheetRef() const {
+            return std::string();
+        }
+
+        void writeSourceInfo( SourceLineInfo const& sourceInfo ) {
+            m_xml
+                .writeAttribute( "filename", sourceInfo.file )
+                .writeAttribute( "line", sourceInfo.line );
+        }
 
-            void printIssue( std::string issue ) const {
-                stream << " " << issue;
+    public: // StreamingReporterBase
+
+        void noMatchingTestCases( std::string const& s ) override {
+            StreamingReporterBase::noMatchingTestCases( s );
+        }
+
+        void testRunStarting( TestRunInfo const& testInfo ) override {
+            StreamingReporterBase::testRunStarting( testInfo );
+            std::string stylesheetRef = getStylesheetRef();
+            if( !stylesheetRef.empty() )
+                m_xml.writeStylesheetRef( stylesheetRef );
+            m_xml.startElement( "Catch" );
+            if( !m_config->name().empty() )
+                m_xml.writeAttribute( "name", m_config->name() );
+        }
+
+        void testGroupStarting( GroupInfo const& groupInfo ) override {
+            StreamingReporterBase::testGroupStarting( groupInfo );
+            m_xml.startElement( "Group" )
+                .writeAttribute( "name", groupInfo.name );
+        }
+
+        void testCaseStarting( TestCaseInfo const& testInfo ) override {
+            StreamingReporterBase::testCaseStarting(testInfo);
+            m_xml.startElement( "TestCase" )
+                .writeAttribute( "name", trim( testInfo.name ) )
+                .writeAttribute( "description", testInfo.description )
+                .writeAttribute( "tags", testInfo.tagsAsString() );
+
+            writeSourceInfo( testInfo.lineInfo );
+
+            if ( m_config->showDurations() == ShowDurations::Always )
+                m_testCaseTimer.start();
+            m_xml.ensureTagClosed();
+        }
+
+        void sectionStarting( SectionInfo const& sectionInfo ) override {
+            StreamingReporterBase::sectionStarting( sectionInfo );
+            if( m_sectionDepth++ > 0 ) {
+                m_xml.startElement( "Section" )
+                    .writeAttribute( "name", trim( sectionInfo.name ) )
+                    .writeAttribute( "description", sectionInfo.description );
+                writeSourceInfo( sectionInfo.lineInfo );
+                m_xml.ensureTagClosed();
             }
+        }
 
-            void printExpressionWas() {
-                if( result.hasExpression() ) {
-                    stream << ";";
-                    {
-                        Colour colour( dimColour() );
-                        stream << " expression was:";
+        void assertionStarting( AssertionInfo const& ) override { }
+
+        bool assertionEnded( AssertionStats const& assertionStats ) override {
+
+            AssertionResult const& result = assertionStats.assertionResult;
+
+            bool includeResults = m_config->includeSuccessfulResults() || !result.isOk();
+
+            if( includeResults ) {
+                // Print any info messages in <Info> tags.
+                for( auto const& msg : assertionStats.infoMessages ) {
+                    if( msg.type == ResultWas::Info ) {
+                        m_xml.scopedElement( "Info" )
+                                .writeText( msg.message );
+                    } else if ( msg.type == ResultWas::Warning ) {
+                        m_xml.scopedElement( "Warning" )
+                                .writeText( msg.message );
                     }
-                    printOriginalExpression();
                 }
             }
 
-            void printOriginalExpression() const {
-                if( result.hasExpression() ) {
-                    stream << " " << result.getExpression();
-                }
-            }
+            // Drop out if result was successful but we're not printing them.
+            if( !includeResults && result.getResultType() != ResultWas::Warning )
+                return true;
 
-            void printReconstructedExpression() const {
-                if( result.hasExpandedExpression() ) {
-                    {
-                        Colour colour( dimColour() );
-                        stream << " for: ";
-                    }
-                    stream << result.getExpandedExpression();
-                }
+            // Print the expression if there is one.
+            if( result.hasExpression() ) {
+                m_xml.startElement( "Expression" )
+                    .writeAttribute( "success", result.succeeded() )
+                    .writeAttribute( "type", result.getTestMacroName() );
+
+                writeSourceInfo( result.getSourceInfo() );
+
+                m_xml.scopedElement( "Original" )
+                    .writeText( result.getExpression() );
+                m_xml.scopedElement( "Expanded" )
+                    .writeText( result.getExpandedExpression() );
             }
 
-            void printMessage() {
-                if ( itMessage != messages.end() ) {
-                    stream << " '" << itMessage->message << "'";
-                    ++itMessage;
-                }
+            // And... Print a result applicable to each result type.
+            switch( result.getResultType() ) {
+                case ResultWas::ThrewException:
+                    m_xml.startElement( "Exception" );
+                    writeSourceInfo( result.getSourceInfo() );
+                    m_xml.writeText( result.getMessage() );
+                    m_xml.endElement();
+                    break;
+                case ResultWas::FatalErrorCondition:
+                    m_xml.startElement( "FatalErrorCondition" );
+                    writeSourceInfo( result.getSourceInfo() );
+                    m_xml.writeText( result.getMessage() );
+                    m_xml.endElement();
+                    break;
+                case ResultWas::Info:
+                    m_xml.scopedElement( "Info" )
+                        .writeText( result.getMessage() );
+                    break;
+                case ResultWas::Warning:
+                    // Warning will already have been written
+                    break;
+                case ResultWas::ExplicitFailure:
+                    m_xml.startElement( "Failure" );
+                    writeSourceInfo( result.getSourceInfo() );
+                    m_xml.writeText( result.getMessage() );
+                    m_xml.endElement();
+                    break;
+                default:
+                    break;
             }
 
-            void printRemainingMessages( Colour::Code colour = dimColour() ) {
-                if ( itMessage == messages.end() )
-                    return;
+            if( result.hasExpression() )
+                m_xml.endElement();
 
-                // using messages.end() directly yields compilation error:
-                std::vector<MessageInfo>::const_iterator itEnd = messages.end();
-                const std::size_t N = static_cast<std::size_t>( std::distance( itMessage, itEnd ) );
+            return true;
+        }
 
-                {
-                    Colour colourGuard( colour );
-                    stream << " with " << pluralise( N, "message" ) << ":";
-                }
+        void sectionEnded( SectionStats const& sectionStats ) override {
+            StreamingReporterBase::sectionEnded( sectionStats );
+            if( --m_sectionDepth > 0 ) {
+                XmlWriter::ScopedElement e = m_xml.scopedElement( "OverallResults" );
+                e.writeAttribute( "successes", sectionStats.assertions.passed );
+                e.writeAttribute( "failures", sectionStats.assertions.failed );
+                e.writeAttribute( "expectedFailures", sectionStats.assertions.failedButOk );
 
-                for(; itMessage != itEnd; ) {
-                    // If this assertion is a warning ignore any INFO messages
-                    if( printInfoMessages || itMessage->type != ResultWas::Info ) {
-                        stream << " '" << itMessage->message << "'";
-                        if ( ++itMessage != itEnd ) {
-                            Colour colourGuard( dimColour() );
-                            stream << " and";
-                        }
-                    }
-                }
+                if ( m_config->showDurations() == ShowDurations::Always )
+                    e.writeAttribute( "durationInSeconds", sectionStats.durationInSeconds );
+
+                m_xml.endElement();
             }
+        }
 
-        private:
-            std::ostream& stream;
-            AssertionStats const& stats;
-            AssertionResult const& result;
-            std::vector<MessageInfo> messages;
-            std::vector<MessageInfo>::const_iterator itMessage;
-            bool printInfoMessages;
-        };
+        void testCaseEnded( TestCaseStats const& testCaseStats ) override {
+            StreamingReporterBase::testCaseEnded( testCaseStats );
+            XmlWriter::ScopedElement e = m_xml.scopedElement( "OverallResult" );
+            e.writeAttribute( "success", testCaseStats.totals.assertions.allOk() );
 
-        // Colour, message variants:
-        // - white: No tests ran.
-        // -   red: Failed [both/all] N test cases, failed [both/all] M assertions.
-        // - white: Passed [both/all] N test cases (no assertions).
-        // -   red: Failed N tests cases, failed M assertions.
-        // - green: Passed [both/all] N tests cases with M assertions.
+            if ( m_config->showDurations() == ShowDurations::Always )
+                e.writeAttribute( "durationInSeconds", m_testCaseTimer.getElapsedSeconds() );
 
-        std::string bothOrAll( std::size_t count ) const {
-            return count == 1 ? "" : count == 2 ? "both " : "all " ;
+            if( !testCaseStats.stdOut.empty() )
+                m_xml.scopedElement( "StdOut" ).writeText( trim( testCaseStats.stdOut ), false );
+            if( !testCaseStats.stdErr.empty() )
+                m_xml.scopedElement( "StdErr" ).writeText( trim( testCaseStats.stdErr ), false );
+
+            m_xml.endElement();
         }
 
-        void printTotals( const Totals& totals ) const {
-            if( totals.testCases.total() == 0 ) {
-                stream << "No tests ran.";
-            }
-            else if( totals.testCases.failed == totals.testCases.total() ) {
-                Colour colour( Colour::ResultError );
-                const std::string qualify_assertions_failed =
-                    totals.assertions.failed == totals.assertions.total() ?
-                        bothOrAll( totals.assertions.failed ) : "";
-                stream <<
-                    "Failed " << bothOrAll( totals.testCases.failed )
-                              << pluralise( totals.testCases.failed, "test case"  ) << ", "
-                    "failed " << qualify_assertions_failed <<
-                                 pluralise( totals.assertions.failed, "assertion" ) << ".";
-            }
-            else if( totals.assertions.total() == 0 ) {
-                stream <<
-                    "Passed " << bothOrAll( totals.testCases.total() )
-                              << pluralise( totals.testCases.total(), "test case" )
-                              << " (no assertions).";
-            }
-            else if( totals.assertions.failed ) {
-                Colour colour( Colour::ResultError );
-                stream <<
-                    "Failed " << pluralise( totals.testCases.failed, "test case"  ) << ", "
-                    "failed " << pluralise( totals.assertions.failed, "assertion" ) << ".";
-            }
-            else {
-                Colour colour( Colour::ResultSuccess );
-                stream <<
-                    "Passed " << bothOrAll( totals.testCases.passed )
-                              << pluralise( totals.testCases.passed, "test case"  ) <<
-                    " with "  << pluralise( totals.assertions.passed, "assertion" ) << ".";
-            }
+        void testGroupEnded( TestGroupStats const& testGroupStats ) override {
+            StreamingReporterBase::testGroupEnded( testGroupStats );
+            // TODO: Check testGroupStats.aborting and act accordingly.
+            m_xml.scopedElement( "OverallResults" )
+                .writeAttribute( "successes", testGroupStats.totals.assertions.passed )
+                .writeAttribute( "failures", testGroupStats.totals.assertions.failed )
+                .writeAttribute( "expectedFailures", testGroupStats.totals.assertions.failedButOk );
+            m_xml.endElement();
         }
+
+        void testRunEnded( TestRunStats const& testRunStats ) override {
+            StreamingReporterBase::testRunEnded( testRunStats );
+            m_xml.scopedElement( "OverallResults" )
+                .writeAttribute( "successes", testRunStats.totals.assertions.passed )
+                .writeAttribute( "failures", testRunStats.totals.assertions.failed )
+                .writeAttribute( "expectedFailures", testRunStats.totals.assertions.failedButOk );
+            m_xml.endElement();
+        }
+
+    private:
+        Timer m_testCaseTimer;
+        XmlWriter m_xml;
+        int m_sectionDepth = 0;
     };
 
-    INTERNAL_CATCH_REGISTER_REPORTER( "compact", CompactReporter )
+    XmlReporter::~XmlReporter() {}
+    CATCH_REGISTER_REPORTER( "xml", XmlReporter )
 
 } // end namespace Catch
 
+#if defined(_MSC_VER)
+#pragma warning(pop)
+#endif
+// end catch_reporter_xml.cpp
+
 namespace Catch {
-    // These are all here to avoid warnings about not having any out of line
-    // virtual methods
-    NonCopyable::~NonCopyable() {}
-    IShared::~IShared() {}
-    IStream::~IStream() CATCH_NOEXCEPT {}
-    FileStream::~FileStream() CATCH_NOEXCEPT {}
-    CoutStream::~CoutStream() CATCH_NOEXCEPT {}
-    DebugOutStream::~DebugOutStream() CATCH_NOEXCEPT {}
-    StreamBufBase::~StreamBufBase() CATCH_NOEXCEPT {}
-    IContext::~IContext() {}
-    IResultCapture::~IResultCapture() {}
-    ITestCase::~ITestCase() {}
-    ITestCaseRegistry::~ITestCaseRegistry() {}
-    IRegistryHub::~IRegistryHub() {}
-    IMutableRegistryHub::~IMutableRegistryHub() {}
-    IExceptionTranslator::~IExceptionTranslator() {}
-    IExceptionTranslatorRegistry::~IExceptionTranslatorRegistry() {}
-    IReporter::~IReporter() {}
-    IReporterFactory::~IReporterFactory() {}
-    IReporterRegistry::~IReporterRegistry() {}
-    IStreamingReporter::~IStreamingReporter() {}
-    AssertionStats::~AssertionStats() {}
-    SectionStats::~SectionStats() {}
-    TestCaseStats::~TestCaseStats() {}
-    TestGroupStats::~TestGroupStats() {}
-    TestRunStats::~TestRunStats() {}
-    CumulativeReporterBase::SectionNode::~SectionNode() {}
-    CumulativeReporterBase::~CumulativeReporterBase() {}
-
-    StreamingReporterBase::~StreamingReporterBase() {}
-    ConsoleReporter::~ConsoleReporter() {}
-    CompactReporter::~CompactReporter() {}
-    IRunner::~IRunner() {}
-    IMutableContext::~IMutableContext() {}
-    IConfig::~IConfig() {}
-    XmlReporter::~XmlReporter() {}
-    JunitReporter::~JunitReporter() {}
-    TestRegistry::~TestRegistry() {}
-    FreeFunctionTestCase::~FreeFunctionTestCase() {}
-    IGeneratorInfo::~IGeneratorInfo() {}
-    IGeneratorsForTest::~IGeneratorsForTest() {}
-    WildcardPattern::~WildcardPattern() {}
-    TestSpec::Pattern::~Pattern() {}
-    TestSpec::NamePattern::~NamePattern() {}
-    TestSpec::TagPattern::~TagPattern() {}
-    TestSpec::ExcludedPattern::~ExcludedPattern() {}
-
-    Matchers::Impl::StdString::Equals::~Equals() {}
-    Matchers::Impl::StdString::Contains::~Contains() {}
-    Matchers::Impl::StdString::StartsWith::~StartsWith() {}
-    Matchers::Impl::StdString::EndsWith::~EndsWith() {}
-
-    void Config::dummy() {}
-
-    namespace TestCaseTracking {
-        ITracker::~ITracker() {}
-        TrackerBase::~TrackerBase() {}
-        SectionTracker::~SectionTracker() {}
-        IndexTracker::~IndexTracker() {}
-    }
+    LeakDetector leakDetector;
 }
 
 #ifdef __clang__
 #pragma clang diagnostic pop
 #endif
 
+// end catch_impl.hpp
 #endif
 
 #ifdef CATCH_CONFIG_MAIN
-// #included from: internal/catch_default_main.hpp
-#define TWOBLUECUBES_CATCH_DEFAULT_MAIN_HPP_INCLUDED
+// start catch_default_main.hpp
 
 #ifndef __OBJC__
 
+#if defined(WIN32) && defined(_UNICODE) && !defined(DO_NOT_USE_WMAIN)
+// Standard C/C++ Win32 Unicode wmain entry point
+extern "C" int wmain (int argc, wchar_t * argv[], wchar_t * []) {
+#else
 // Standard C/C++ main entry point
 int main (int argc, char * argv[]) {
+#endif
+
     return Catch::Session().run( argc, argv );
 }
 
@@ -10316,7 +11725,7 @@ int main (int argc, char * const argv[]) {
 #endif
 
     Catch::registerTestMethods();
-    int result = Catch::Session().run( argc, (char* const*)argv );
+    int result = Catch::Session().run( argc, (char**)argv );
 
 #if !CATCH_ARC_ENABLED
     [pool drain];
@@ -10327,157 +11736,277 @@ int main (int argc, char * const argv[]) {
 
 #endif // __OBJC__
 
+// end catch_default_main.hpp
 #endif
 
 #ifdef CLARA_CONFIG_MAIN_NOT_DEFINED
 #  undef CLARA_CONFIG_MAIN
 #endif
 
+#if !defined(CATCH_CONFIG_DISABLE)
 //////
-
 // If this config identifier is defined then all CATCH macros are prefixed with CATCH_
 #ifdef CATCH_CONFIG_PREFIX_ALL
 
-#define CATCH_REQUIRE( expr ) INTERNAL_CATCH_TEST( expr, Catch::ResultDisposition::Normal, "CATCH_REQUIRE" )
-#define CATCH_REQUIRE_FALSE( expr ) INTERNAL_CATCH_TEST( expr, Catch::ResultDisposition::Normal | Catch::ResultDisposition::FalseTest, "CATCH_REQUIRE_FALSE" )
-
-#define CATCH_REQUIRE_THROWS( expr ) INTERNAL_CATCH_THROWS( expr, Catch::ResultDisposition::Normal, "", "CATCH_REQUIRE_THROWS" )
-#define CATCH_REQUIRE_THROWS_AS( expr, exceptionType ) INTERNAL_CATCH_THROWS_AS( expr, exceptionType, Catch::ResultDisposition::Normal, "CATCH_REQUIRE_THROWS_AS" )
-#define CATCH_REQUIRE_THROWS_WITH( expr, matcher ) INTERNAL_CATCH_THROWS( expr, Catch::ResultDisposition::Normal, matcher, "CATCH_REQUIRE_THROWS_WITH" )
-#define CATCH_REQUIRE_NOTHROW( expr ) INTERNAL_CATCH_NO_THROW( expr, Catch::ResultDisposition::Normal, "CATCH_REQUIRE_NOTHROW" )
-
-#define CATCH_CHECK( expr ) INTERNAL_CATCH_TEST( expr, Catch::ResultDisposition::ContinueOnFailure, "CATCH_CHECK" )
-#define CATCH_CHECK_FALSE( expr ) INTERNAL_CATCH_TEST( expr, Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::FalseTest, "CATCH_CHECK_FALSE" )
-#define CATCH_CHECKED_IF( expr ) INTERNAL_CATCH_IF( expr, Catch::ResultDisposition::ContinueOnFailure, "CATCH_CHECKED_IF" )
-#define CATCH_CHECKED_ELSE( expr ) INTERNAL_CATCH_ELSE( expr, Catch::ResultDisposition::ContinueOnFailure, "CATCH_CHECKED_ELSE" )
-#define CATCH_CHECK_NOFAIL( expr ) INTERNAL_CATCH_TEST( expr, Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::SuppressFail, "CATCH_CHECK_NOFAIL" )
-
-#define CATCH_CHECK_THROWS( expr )  INTERNAL_CATCH_THROWS( expr, Catch::ResultDisposition::ContinueOnFailure, "CATCH_CHECK_THROWS" )
-#define CATCH_CHECK_THROWS_AS( expr, exceptionType ) INTERNAL_CATCH_THROWS_AS( expr, exceptionType, Catch::ResultDisposition::ContinueOnFailure, "CATCH_CHECK_THROWS_AS" )
-#define CATCH_CHECK_THROWS_WITH( expr, matcher ) INTERNAL_CATCH_THROWS( expr, Catch::ResultDisposition::ContinueOnFailure, matcher, "CATCH_CHECK_THROWS_WITH" )
-#define CATCH_CHECK_NOTHROW( expr ) INTERNAL_CATCH_NO_THROW( expr, Catch::ResultDisposition::ContinueOnFailure, "CATCH_CHECK_NOTHROW" )
-
-#define CHECK_THAT( arg, matcher ) INTERNAL_CHECK_THAT( arg, matcher, Catch::ResultDisposition::ContinueOnFailure, "CATCH_CHECK_THAT" )
-#define CATCH_REQUIRE_THAT( arg, matcher ) INTERNAL_CHECK_THAT( arg, matcher, Catch::ResultDisposition::Normal, "CATCH_REQUIRE_THAT" )
-
-#define CATCH_INFO( msg ) INTERNAL_CATCH_INFO( msg, "CATCH_INFO" )
-#define CATCH_WARN( msg ) INTERNAL_CATCH_MSG( Catch::ResultWas::Warning, Catch::ResultDisposition::ContinueOnFailure, "CATCH_WARN", msg )
-#define CATCH_SCOPED_INFO( msg ) INTERNAL_CATCH_INFO( msg, "CATCH_INFO" )
-#define CATCH_CAPTURE( msg ) INTERNAL_CATCH_INFO( #msg " := " << msg, "CATCH_CAPTURE" )
-#define CATCH_SCOPED_CAPTURE( msg ) INTERNAL_CATCH_INFO( #msg " := " << msg, "CATCH_CAPTURE" )
-
-#ifdef CATCH_CONFIG_VARIADIC_MACROS
-    #define CATCH_TEST_CASE( ... ) INTERNAL_CATCH_TESTCASE( __VA_ARGS__ )
-    #define CATCH_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEST_CASE_METHOD( className, __VA_ARGS__ )
-    #define CATCH_METHOD_AS_TEST_CASE( method, ... ) INTERNAL_CATCH_METHOD_AS_TEST_CASE( method, __VA_ARGS__ )
-    #define CATCH_REGISTER_TEST_CASE( Function, ... ) INTERNAL_CATCH_REGISTER_TESTCASE( Function, __VA_ARGS__ )
-    #define CATCH_SECTION( ... ) INTERNAL_CATCH_SECTION( __VA_ARGS__ )
-    #define CATCH_FAIL( ... ) INTERNAL_CATCH_MSG( Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::Normal, "CATCH_FAIL", __VA_ARGS__ )
-    #define CATCH_SUCCEED( ... ) INTERNAL_CATCH_MSG( Catch::ResultWas::Ok, Catch::ResultDisposition::ContinueOnFailure, "CATCH_SUCCEED", __VA_ARGS__ )
-#else
-    #define CATCH_TEST_CASE( name, description ) INTERNAL_CATCH_TESTCASE( name, description )
-    #define CATCH_TEST_CASE_METHOD( className, name, description ) INTERNAL_CATCH_TEST_CASE_METHOD( className, name, description )
-    #define CATCH_METHOD_AS_TEST_CASE( method, name, description ) INTERNAL_CATCH_METHOD_AS_TEST_CASE( method, name, description )
-    #define CATCH_REGISTER_TEST_CASE( function, name, description ) INTERNAL_CATCH_REGISTER_TESTCASE( function, name, description )
-    #define CATCH_SECTION( name, description ) INTERNAL_CATCH_SECTION( name, description )
-    #define CATCH_FAIL( msg ) INTERNAL_CATCH_MSG( Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::Normal, "CATCH_FAIL", msg )
-    #define CATCH_SUCCEED( msg ) INTERNAL_CATCH_MSG( Catch::ResultWas::Ok, Catch::ResultDisposition::ContinueOnFailure, "CATCH_SUCCEED", msg )
-#endif
-#define CATCH_ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE( "", "" )
-
-#define CATCH_REGISTER_REPORTER( name, reporterType ) INTERNAL_CATCH_REGISTER_REPORTER( name, reporterType )
-#define CATCH_REGISTER_LEGACY_REPORTER( name, reporterType ) INTERNAL_CATCH_REGISTER_LEGACY_REPORTER( name, reporterType )
-
-#define CATCH_GENERATE( expr) INTERNAL_CATCH_GENERATE( expr )
+#define CATCH_REQUIRE( ... ) INTERNAL_CATCH_TEST( "CATCH_REQUIRE", Catch::ResultDisposition::Normal, __VA_ARGS__ )
+#define CATCH_REQUIRE_FALSE( ... ) INTERNAL_CATCH_TEST( "CATCH_REQUIRE_FALSE", Catch::ResultDisposition::Normal | Catch::ResultDisposition::FalseTest, __VA_ARGS__ )
+
+#define CATCH_REQUIRE_THROWS( ... ) INTERNAL_CATCH_THROWS( "CATCH_REQUIRE_THROWS", Catch::ResultDisposition::Normal, "", __VA_ARGS__ )
+#define CATCH_REQUIRE_THROWS_AS( expr, exceptionType ) INTERNAL_CATCH_THROWS_AS( "CATCH_REQUIRE_THROWS_AS", exceptionType, Catch::ResultDisposition::Normal, expr )
+#define CATCH_REQUIRE_THROWS_WITH( expr, matcher ) INTERNAL_CATCH_THROWS_STR_MATCHES( "CATCH_REQUIRE_THROWS_WITH", Catch::ResultDisposition::Normal, matcher, expr )
+#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
+#define CATCH_REQUIRE_THROWS_MATCHES( expr, exceptionType, matcher ) INTERNAL_CATCH_THROWS_MATCHES( "CATCH_REQUIRE_THROWS_MATCHES", exceptionType, Catch::ResultDisposition::Normal, matcher, expr )
+#endif// CATCH_CONFIG_DISABLE_MATCHERS
+#define CATCH_REQUIRE_NOTHROW( ... ) INTERNAL_CATCH_NO_THROW( "CATCH_REQUIRE_NOTHROW", Catch::ResultDisposition::Normal, __VA_ARGS__ )
+
+#define CATCH_CHECK( ... ) INTERNAL_CATCH_TEST( "CATCH_CHECK", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
+#define CATCH_CHECK_FALSE( ... ) INTERNAL_CATCH_TEST( "CATCH_CHECK_FALSE", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::FalseTest, __VA_ARGS__ )
+#define CATCH_CHECKED_IF( ... ) INTERNAL_CATCH_IF( "CATCH_CHECKED_IF", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
+#define CATCH_CHECKED_ELSE( ... ) INTERNAL_CATCH_ELSE( "CATCH_CHECKED_ELSE", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
+#define CATCH_CHECK_NOFAIL( ... ) INTERNAL_CATCH_TEST( "CATCH_CHECK_NOFAIL", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::SuppressFail, __VA_ARGS__ )
+
+#define CATCH_CHECK_THROWS( ... )  INTERNAL_CATCH_THROWS( "CATCH_CHECK_THROWS", Catch::ResultDisposition::ContinueOnFailure, "", __VA_ARGS__ )
+#define CATCH_CHECK_THROWS_AS( expr, exceptionType ) INTERNAL_CATCH_THROWS_AS( "CATCH_CHECK_THROWS_AS", exceptionType, Catch::ResultDisposition::ContinueOnFailure, expr )
+#define CATCH_CHECK_THROWS_WITH( expr, matcher ) INTERNAL_CATCH_THROWS_STR_MATCHES( "CATCH_CHECK_THROWS_WITH", Catch::ResultDisposition::ContinueOnFailure, matcher, expr )
+#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
+#define CATCH_CHECK_THROWS_MATCHES( expr, exceptionType, matcher ) INTERNAL_CATCH_THROWS_MATCHES( "CATCH_CHECK_THROWS_MATCHES", exceptionType, Catch::ResultDisposition::ContinueOnFailure, matcher, expr )
+#endif // CATCH_CONFIG_DISABLE_MATCHERS
+#define CATCH_CHECK_NOTHROW( ... ) INTERNAL_CATCH_NO_THROW( "CATCH_CHECK_NOTHROW", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
+
+#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
+#define CATCH_CHECK_THAT( arg, matcher ) INTERNAL_CHECK_THAT( "CATCH_CHECK_THAT", matcher, Catch::ResultDisposition::ContinueOnFailure, arg )
+
+#define CATCH_REQUIRE_THAT( arg, matcher ) INTERNAL_CHECK_THAT( "CATCH_REQUIRE_THAT", matcher, Catch::ResultDisposition::Normal, arg )
+#endif // CATCH_CONFIG_DISABLE_MATCHERS
+
+#define CATCH_INFO( msg ) INTERNAL_CATCH_INFO( "CATCH_INFO", msg )
+#define CATCH_WARN( msg ) INTERNAL_CATCH_MSG( "CATCH_WARN", Catch::ResultWas::Warning, Catch::ResultDisposition::ContinueOnFailure, msg )
+#define CATCH_CAPTURE( msg ) INTERNAL_CATCH_INFO( "CATCH_CAPTURE", #msg " := " << ::Catch::Detail::stringify(msg) )
+
+#define CATCH_TEST_CASE( ... ) INTERNAL_CATCH_TESTCASE( __VA_ARGS__ )
+#define CATCH_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEST_CASE_METHOD( className, __VA_ARGS__ )
+#define CATCH_METHOD_AS_TEST_CASE( method, ... ) INTERNAL_CATCH_METHOD_AS_TEST_CASE( method, __VA_ARGS__ )
+#define CATCH_REGISTER_TEST_CASE( Function, ... ) INTERNAL_CATCH_REGISTER_TESTCASE( Function, __VA_ARGS__ )
+#define CATCH_SECTION( ... ) INTERNAL_CATCH_SECTION( __VA_ARGS__ )
+#define CATCH_FAIL( ... ) INTERNAL_CATCH_MSG( "CATCH_FAIL", Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::Normal, __VA_ARGS__ )
+#define CATCH_FAIL_CHECK( ... ) INTERNAL_CATCH_MSG( "CATCH_FAIL_CHECK", Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
+#define CATCH_SUCCEED( ... ) INTERNAL_CATCH_MSG( "CATCH_SUCCEED", Catch::ResultWas::Ok, Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
+
+#define CATCH_ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE()
 
 // "BDD-style" convenience wrappers
-#ifdef CATCH_CONFIG_VARIADIC_MACROS
 #define CATCH_SCENARIO( ... ) CATCH_TEST_CASE( "Scenario: " __VA_ARGS__ )
 #define CATCH_SCENARIO_METHOD( className, ... ) INTERNAL_CATCH_TEST_CASE_METHOD( className, "Scenario: " __VA_ARGS__ )
-#else
-#define CATCH_SCENARIO( name, tags ) CATCH_TEST_CASE( "Scenario: " name, tags )
-#define CATCH_SCENARIO_METHOD( className, name, tags ) INTERNAL_CATCH_TEST_CASE_METHOD( className, "Scenario: " name, tags )
-#endif
-#define CATCH_GIVEN( desc )    CATCH_SECTION( std::string( "Given: ") + desc, "" )
-#define CATCH_WHEN( desc )     CATCH_SECTION( std::string( " When: ") + desc, "" )
-#define CATCH_AND_WHEN( desc ) CATCH_SECTION( std::string( "  And: ") + desc, "" )
-#define CATCH_THEN( desc )     CATCH_SECTION( std::string( " Then: ") + desc, "" )
-#define CATCH_AND_THEN( desc ) CATCH_SECTION( std::string( "  And: ") + desc, "" )
+#define CATCH_GIVEN( desc )    CATCH_SECTION( std::string( "Given: ") + desc )
+#define CATCH_WHEN( desc )     CATCH_SECTION( std::string( " When: ") + desc )
+#define CATCH_AND_WHEN( desc ) CATCH_SECTION( std::string( "  And: ") + desc )
+#define CATCH_THEN( desc )     CATCH_SECTION( std::string( " Then: ") + desc )
+#define CATCH_AND_THEN( desc ) CATCH_SECTION( std::string( "  And: ") + desc )
 
 // If CATCH_CONFIG_PREFIX_ALL is not defined then the CATCH_ prefix is not required
 #else
 
-#define REQUIRE( expr ) INTERNAL_CATCH_TEST( expr, Catch::ResultDisposition::Normal, "REQUIRE" )
-#define REQUIRE_FALSE( expr ) INTERNAL_CATCH_TEST( expr, Catch::ResultDisposition::Normal | Catch::ResultDisposition::FalseTest, "REQUIRE_FALSE" )
-
-#define REQUIRE_THROWS( expr ) INTERNAL_CATCH_THROWS( expr, Catch::ResultDisposition::Normal, "", "REQUIRE_THROWS" )
-#define REQUIRE_THROWS_AS( expr, exceptionType ) INTERNAL_CATCH_THROWS_AS( expr, exceptionType, Catch::ResultDisposition::Normal, "REQUIRE_THROWS_AS" )
-#define REQUIRE_THROWS_WITH( expr, matcher ) INTERNAL_CATCH_THROWS( expr, Catch::ResultDisposition::Normal, matcher, "REQUIRE_THROWS_WITH" )
-#define REQUIRE_NOTHROW( expr ) INTERNAL_CATCH_NO_THROW( expr, Catch::ResultDisposition::Normal, "REQUIRE_NOTHROW" )
-
-#define CHECK( expr ) INTERNAL_CATCH_TEST( expr, Catch::ResultDisposition::ContinueOnFailure, "CHECK" )
-#define CHECK_FALSE( expr ) INTERNAL_CATCH_TEST( expr, Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::FalseTest, "CHECK_FALSE" )
-#define CHECKED_IF( expr ) INTERNAL_CATCH_IF( expr, Catch::ResultDisposition::ContinueOnFailure, "CHECKED_IF" )
-#define CHECKED_ELSE( expr ) INTERNAL_CATCH_ELSE( expr, Catch::ResultDisposition::ContinueOnFailure, "CHECKED_ELSE" )
-#define CHECK_NOFAIL( expr ) INTERNAL_CATCH_TEST( expr, Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::SuppressFail, "CHECK_NOFAIL" )
-
-#define CHECK_THROWS( expr )  INTERNAL_CATCH_THROWS( expr, Catch::ResultDisposition::ContinueOnFailure, "", "CHECK_THROWS" )
-#define CHECK_THROWS_AS( expr, exceptionType ) INTERNAL_CATCH_THROWS_AS( expr, exceptionType, Catch::ResultDisposition::ContinueOnFailure, "CHECK_THROWS_AS" )
-#define CHECK_THROWS_WITH( expr, matcher ) INTERNAL_CATCH_THROWS( expr, Catch::ResultDisposition::ContinueOnFailure, matcher, "CHECK_THROWS_WITH" )
-#define CHECK_NOTHROW( expr ) INTERNAL_CATCH_NO_THROW( expr, Catch::ResultDisposition::ContinueOnFailure, "CHECK_NOTHROW" )
-
-#define CHECK_THAT( arg, matcher ) INTERNAL_CHECK_THAT( arg, matcher, Catch::ResultDisposition::ContinueOnFailure, "CHECK_THAT" )
-#define REQUIRE_THAT( arg, matcher ) INTERNAL_CHECK_THAT( arg, matcher, Catch::ResultDisposition::Normal, "REQUIRE_THAT" )
-
-#define INFO( msg ) INTERNAL_CATCH_INFO( msg, "INFO" )
-#define WARN( msg ) INTERNAL_CATCH_MSG( Catch::ResultWas::Warning, Catch::ResultDisposition::ContinueOnFailure, "WARN", msg )
-#define SCOPED_INFO( msg ) INTERNAL_CATCH_INFO( msg, "INFO" )
-#define CAPTURE( msg ) INTERNAL_CATCH_INFO( #msg " := " << msg, "CAPTURE" )
-#define SCOPED_CAPTURE( msg ) INTERNAL_CATCH_INFO( #msg " := " << msg, "CAPTURE" )
-
-#ifdef CATCH_CONFIG_VARIADIC_MACROS
-    #define TEST_CASE( ... ) INTERNAL_CATCH_TESTCASE( __VA_ARGS__ )
-    #define TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEST_CASE_METHOD( className, __VA_ARGS__ )
-    #define METHOD_AS_TEST_CASE( method, ... ) INTERNAL_CATCH_METHOD_AS_TEST_CASE( method, __VA_ARGS__ )
-    #define REGISTER_TEST_CASE( Function, ... ) INTERNAL_CATCH_REGISTER_TESTCASE( Function, __VA_ARGS__ )
-    #define SECTION( ... ) INTERNAL_CATCH_SECTION( __VA_ARGS__ )
-    #define FAIL( ... ) INTERNAL_CATCH_MSG( Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::Normal, "FAIL", __VA_ARGS__ )
-    #define SUCCEED( ... ) INTERNAL_CATCH_MSG( Catch::ResultWas::Ok, Catch::ResultDisposition::ContinueOnFailure, "SUCCEED", __VA_ARGS__ )
-#else
-    #define TEST_CASE( name, description ) INTERNAL_CATCH_TESTCASE( name, description )
-    #define TEST_CASE_METHOD( className, name, description ) INTERNAL_CATCH_TEST_CASE_METHOD( className, name, description )
-    #define METHOD_AS_TEST_CASE( method, name, description ) INTERNAL_CATCH_METHOD_AS_TEST_CASE( method, name, description )
-    #define REGISTER_TEST_CASE( method, name, description ) INTERNAL_CATCH_REGISTER_TESTCASE( method, name, description )
-    #define SECTION( name, description ) INTERNAL_CATCH_SECTION( name, description )
-    #define FAIL( msg ) INTERNAL_CATCH_MSG( Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::Normal, "FAIL", msg )
-    #define SUCCEED( msg ) INTERNAL_CATCH_MSG( Catch::ResultWas::Ok, Catch::ResultDisposition::ContinueOnFailure, "SUCCEED", msg )
-#endif
-#define ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE( "", "" )
-
-#define REGISTER_REPORTER( name, reporterType ) INTERNAL_CATCH_REGISTER_REPORTER( name, reporterType )
-#define REGISTER_LEGACY_REPORTER( name, reporterType ) INTERNAL_CATCH_REGISTER_LEGACY_REPORTER( name, reporterType )
-
-#define GENERATE( expr) INTERNAL_CATCH_GENERATE( expr )
+#define REQUIRE( ... ) INTERNAL_CATCH_TEST( "REQUIRE", Catch::ResultDisposition::Normal, __VA_ARGS__  )
+#define REQUIRE_FALSE( ... ) INTERNAL_CATCH_TEST( "REQUIRE_FALSE", Catch::ResultDisposition::Normal | Catch::ResultDisposition::FalseTest, __VA_ARGS__ )
+
+#define REQUIRE_THROWS( ... ) INTERNAL_CATCH_THROWS( "REQUIRE_THROWS", Catch::ResultDisposition::Normal, __VA_ARGS__ )
+#define REQUIRE_THROWS_AS( expr, exceptionType ) INTERNAL_CATCH_THROWS_AS( "REQUIRE_THROWS_AS", exceptionType, Catch::ResultDisposition::Normal, expr )
+#define REQUIRE_THROWS_WITH( expr, matcher ) INTERNAL_CATCH_THROWS_STR_MATCHES( "REQUIRE_THROWS_WITH", Catch::ResultDisposition::Normal, matcher, expr )
+#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
+#define REQUIRE_THROWS_MATCHES( expr, exceptionType, matcher ) INTERNAL_CATCH_THROWS_MATCHES( "REQUIRE_THROWS_MATCHES", exceptionType, Catch::ResultDisposition::Normal, matcher, expr )
+#endif // CATCH_CONFIG_DISABLE_MATCHERS
+#define REQUIRE_NOTHROW( ... ) INTERNAL_CATCH_NO_THROW( "REQUIRE_NOTHROW", Catch::ResultDisposition::Normal, __VA_ARGS__ )
+
+#define CHECK( ... ) INTERNAL_CATCH_TEST( "CHECK", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
+#define CHECK_FALSE( ... ) INTERNAL_CATCH_TEST( "CHECK_FALSE", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::FalseTest, __VA_ARGS__ )
+#define CHECKED_IF( ... ) INTERNAL_CATCH_IF( "CHECKED_IF", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
+#define CHECKED_ELSE( ... ) INTERNAL_CATCH_ELSE( "CHECKED_ELSE", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
+#define CHECK_NOFAIL( ... ) INTERNAL_CATCH_TEST( "CHECK_NOFAIL", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::SuppressFail, __VA_ARGS__ )
+
+#define CHECK_THROWS( ... )  INTERNAL_CATCH_THROWS( "CHECK_THROWS", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
+#define CHECK_THROWS_AS( expr, exceptionType ) INTERNAL_CATCH_THROWS_AS( "CHECK_THROWS_AS", exceptionType, Catch::ResultDisposition::ContinueOnFailure, expr )
+#define CHECK_THROWS_WITH( expr, matcher ) INTERNAL_CATCH_THROWS_STR_MATCHES( "CHECK_THROWS_WITH", Catch::ResultDisposition::ContinueOnFailure, matcher, expr )
+#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
+#define CHECK_THROWS_MATCHES( expr, exceptionType, matcher ) INTERNAL_CATCH_THROWS_MATCHES( "CHECK_THROWS_MATCHES", exceptionType, Catch::ResultDisposition::ContinueOnFailure, matcher, expr )
+#endif // CATCH_CONFIG_DISABLE_MATCHERS
+#define CHECK_NOTHROW( ... ) INTERNAL_CATCH_NO_THROW( "CHECK_NOTHROW", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
+
+#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
+#define CHECK_THAT( arg, matcher ) INTERNAL_CHECK_THAT( "CHECK_THAT", matcher, Catch::ResultDisposition::ContinueOnFailure, arg )
+
+#define REQUIRE_THAT( arg, matcher ) INTERNAL_CHECK_THAT( "REQUIRE_THAT", matcher, Catch::ResultDisposition::Normal, arg )
+#endif // CATCH_CONFIG_DISABLE_MATCHERS
+
+#define INFO( msg ) INTERNAL_CATCH_INFO( "INFO", msg )
+#define WARN( msg ) INTERNAL_CATCH_MSG( "WARN", Catch::ResultWas::Warning, Catch::ResultDisposition::ContinueOnFailure, msg )
+#define CAPTURE( msg ) INTERNAL_CATCH_INFO( "CAPTURE", #msg " := " << ::Catch::Detail::stringify(msg) )
+
+#define TEST_CASE( ... ) INTERNAL_CATCH_TESTCASE( __VA_ARGS__ )
+#define TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEST_CASE_METHOD( className, __VA_ARGS__ )
+#define METHOD_AS_TEST_CASE( method, ... ) INTERNAL_CATCH_METHOD_AS_TEST_CASE( method, __VA_ARGS__ )
+#define REGISTER_TEST_CASE( Function, ... ) INTERNAL_CATCH_REGISTER_TESTCASE( Function, __VA_ARGS__ )
+#define SECTION( ... ) INTERNAL_CATCH_SECTION( __VA_ARGS__ )
+#define FAIL( ... ) INTERNAL_CATCH_MSG( "FAIL", Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::Normal, __VA_ARGS__ )
+#define FAIL_CHECK( ... ) INTERNAL_CATCH_MSG( "FAIL_CHECK", Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
+#define SUCCEED( ... ) INTERNAL_CATCH_MSG( "SUCCEED", Catch::ResultWas::Ok, Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
+#define ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE()
 
 #endif
 
 #define CATCH_TRANSLATE_EXCEPTION( signature ) INTERNAL_CATCH_TRANSLATE_EXCEPTION( signature )
 
 // "BDD-style" convenience wrappers
-#ifdef CATCH_CONFIG_VARIADIC_MACROS
 #define SCENARIO( ... ) TEST_CASE( "Scenario: " __VA_ARGS__ )
 #define SCENARIO_METHOD( className, ... ) INTERNAL_CATCH_TEST_CASE_METHOD( className, "Scenario: " __VA_ARGS__ )
+
+#define GIVEN( desc )    SECTION( std::string("   Given: ") + desc )
+#define WHEN( desc )     SECTION( std::string("    When: ") + desc )
+#define AND_WHEN( desc ) SECTION( std::string("And when: ") + desc )
+#define THEN( desc )     SECTION( std::string("    Then: ") + desc )
+#define AND_THEN( desc ) SECTION( std::string("     And: ") + desc )
+
+using Catch::Detail::Approx;
+
+#else
+//////
+// If this config identifier is defined then all CATCH macros are prefixed with CATCH_
+#ifdef CATCH_CONFIG_PREFIX_ALL
+
+#define CATCH_REQUIRE( ... )        (void)(0)
+#define CATCH_REQUIRE_FALSE( ... )  (void)(0)
+
+#define CATCH_REQUIRE_THROWS( ... ) (void)(0)
+#define CATCH_REQUIRE_THROWS_AS( expr, exceptionType ) (void)(0)
+#define CATCH_REQUIRE_THROWS_WITH( expr, matcher )     (void)(0)
+#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
+#define CATCH_REQUIRE_THROWS_MATCHES( expr, exceptionType, matcher ) (void)(0)
+#endif// CATCH_CONFIG_DISABLE_MATCHERS
+#define CATCH_REQUIRE_NOTHROW( ... ) (void)(0)
+
+#define CATCH_CHECK( ... )         (void)(0)
+#define CATCH_CHECK_FALSE( ... )   (void)(0)
+#define CATCH_CHECKED_IF( ... )    if (__VA_ARGS__)
+#define CATCH_CHECKED_ELSE( ... )  if (!(__VA_ARGS__))
+#define CATCH_CHECK_NOFAIL( ... )  (void)(0)
+
+#define CATCH_CHECK_THROWS( ... )  (void)(0)
+#define CATCH_CHECK_THROWS_AS( expr, exceptionType ) (void)(0)
+#define CATCH_CHECK_THROWS_WITH( expr, matcher )     (void)(0)
+#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
+#define CATCH_CHECK_THROWS_MATCHES( expr, exceptionType, matcher ) (void)(0)
+#endif // CATCH_CONFIG_DISABLE_MATCHERS
+#define CATCH_CHECK_NOTHROW( ... ) (void)(0)
+
+#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
+#define CATCH_CHECK_THAT( arg, matcher )   (void)(0)
+
+#define CATCH_REQUIRE_THAT( arg, matcher ) (void)(0)
+#endif // CATCH_CONFIG_DISABLE_MATCHERS
+
+#define CATCH_INFO( msg )    (void)(0)
+#define CATCH_WARN( msg )    (void)(0)
+#define CATCH_CAPTURE( msg ) (void)(0)
+
+#define CATCH_TEST_CASE( ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ))
+#define CATCH_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ))
+#define CATCH_METHOD_AS_TEST_CASE( method, ... )
+#define CATCH_REGISTER_TEST_CASE( Function, ... ) (void)(0)
+#define CATCH_SECTION( ... )
+#define CATCH_FAIL( ... ) (void)(0)
+#define CATCH_FAIL_CHECK( ... ) (void)(0)
+#define CATCH_SUCCEED( ... ) (void)(0)
+
+#define CATCH_ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ))
+
+// "BDD-style" convenience wrappers
+#define CATCH_SCENARIO( ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ))
+#define CATCH_SCENARIO_METHOD( className, ... ) INTERNAL_CATCH_TESTCASE_METHOD_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ), className )
+#define CATCH_GIVEN( desc )
+#define CATCH_WHEN( desc )
+#define CATCH_AND_WHEN( desc )
+#define CATCH_THEN( desc )
+#define CATCH_AND_THEN( desc )
+
+// If CATCH_CONFIG_PREFIX_ALL is not defined then the CATCH_ prefix is not required
 #else
-#define SCENARIO( name, tags ) TEST_CASE( "Scenario: " name, tags )
-#define SCENARIO_METHOD( className, name, tags ) INTERNAL_CATCH_TEST_CASE_METHOD( className, "Scenario: " name, tags )
+
+#define REQUIRE( ... )       (void)(0)
+#define REQUIRE_FALSE( ... ) (void)(0)
+
+#define REQUIRE_THROWS( ... ) (void)(0)
+#define REQUIRE_THROWS_AS( expr, exceptionType ) (void)(0)
+#define REQUIRE_THROWS_WITH( expr, matcher ) (void)(0)
+#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
+#define REQUIRE_THROWS_MATCHES( expr, exceptionType, matcher ) (void)(0)
+#endif // CATCH_CONFIG_DISABLE_MATCHERS
+#define REQUIRE_NOTHROW( ... ) (void)(0)
+
+#define CHECK( ... ) (void)(0)
+#define CHECK_FALSE( ... ) (void)(0)
+#define CHECKED_IF( ... ) if (__VA_ARGS__)
+#define CHECKED_ELSE( ... ) if (!(__VA_ARGS__))
+#define CHECK_NOFAIL( ... ) (void)(0)
+
+#define CHECK_THROWS( ... )  (void)(0)
+#define CHECK_THROWS_AS( expr, exceptionType ) (void)(0)
+#define CHECK_THROWS_WITH( expr, matcher ) (void)(0)
+#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
+#define CHECK_THROWS_MATCHES( expr, exceptionType, matcher ) (void)(0)
+#endif // CATCH_CONFIG_DISABLE_MATCHERS
+#define CHECK_NOTHROW( ... ) (void)(0)
+
+#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
+#define CHECK_THAT( arg, matcher ) (void)(0)
+
+#define REQUIRE_THAT( arg, matcher ) (void)(0)
+#endif // CATCH_CONFIG_DISABLE_MATCHERS
+
+#define INFO( msg ) (void)(0)
+#define WARN( msg ) (void)(0)
+#define CAPTURE( msg ) (void)(0)
+
+#define TEST_CASE( ... )  INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ))
+#define TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ))
+#define METHOD_AS_TEST_CASE( method, ... )
+#define REGISTER_TEST_CASE( Function, ... ) (void)(0)
+#define SECTION( ... )
+#define FAIL( ... ) (void)(0)
+#define FAIL_CHECK( ... ) (void)(0)
+#define SUCCEED( ... ) (void)(0)
+#define ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ))
+
 #endif
-#define GIVEN( desc )    SECTION( std::string("   Given: ") + desc, "" )
-#define WHEN( desc )     SECTION( std::string("    When: ") + desc, "" )
-#define AND_WHEN( desc ) SECTION( std::string("And when: ") + desc, "" )
-#define THEN( desc )     SECTION( std::string("    Then: ") + desc, "" )
-#define AND_THEN( desc ) SECTION( std::string("     And: ") + desc, "" )
+
+#define CATCH_TRANSLATE_EXCEPTION( signature ) INTERNAL_CATCH_TRANSLATE_EXCEPTION_NO_REG( INTERNAL_CATCH_UNIQUE_NAME( catch_internal_ExceptionTranslator ), signature )
+
+// "BDD-style" convenience wrappers
+#define SCENARIO( ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ) )
+#define SCENARIO_METHOD( className, ... ) INTERNAL_CATCH_TESTCASE_METHOD_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ), className )
+
+#define GIVEN( desc )
+#define WHEN( desc )
+#define AND_WHEN( desc )
+#define THEN( desc )
+#define AND_THEN( desc )
 
 using Catch::Detail::Approx;
 
+#endif
+
+// start catch_reenable_warnings.h
+
+
+#ifdef __clang__
+#    ifdef __ICC // icpc defines the __clang__ macro
+#        pragma warning(pop)
+#    else
+#        pragma clang diagnostic pop
+#    endif
+#elif defined __GNUC__
+#    pragma GCC diagnostic pop
+#endif
+
+// end catch_reenable_warnings.h
+// end catch.hpp
 #endif // TWOBLUECUBES_SINGLE_INCLUDE_CATCH_HPP_INCLUDED