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#include <result.h>
enum ErrorX { one, two = 5, three, NoError };
// operator bool
static_assert(!(Result<int, ErrorX>{ErrorX::one}));
static_assert(!(Result<int, ErrorX>{ErrorX::two}));
static_assert((Result<int, ErrorX>{5}));
// error
static_assert((Result<int, ErrorX>{ErrorX::one}).error() == ErrorX::one);
static_assert((Result<int, ErrorX>{5}).error() == ErrorX::NoError);
// value
static_assert((Result<int, ErrorX>{ErrorX::one}).value() == int{});
static_assert((Result<int, ErrorX>{5}).value() == 5);
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