// Copyright (c) 2010, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// This header file defines << for wchar, which is necessary for google glog
// to correctly log strings that have that constituent type.
// See http://code.google.com/p/google-glog/issues/detail?id=4


#ifndef WCHAR_LOGGING_H_
#define WCHAR_LOGGING_H_

#include <wchar.h>

#include <iostream>
#include <string>

inline std::ostream& operator<<(std::ostream& out, const wchar_t* str) {
  size_t len;
  wcstombs_s(&len, NULL, 0, str, _TRUNCATE);
  char* buf = (char*)malloc(len + 1);
  buf[len] = 0;
  size_t converted;
  wcstombs_s(&converted, buf, len, str, _TRUNCATE);
  out << buf;
  free(buf);
  return out;
}

inline std::ostream& operator<<(std::ostream& out, const std::wstring& str) {
  return operator<<(out, str.c_str());
}

#endif  // WCHAR_LOGGING_H_