Catch2/include/internal/catch_compiler_capabilities.h

/*
 *  Created by Phil on 15/04/2013.
 *  Copyright 2013 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_CATCH_COMPILER_CAPABILITIES_HPP_INCLUDED
#define TWOBLUECUBES_CATCH_COMPILER_CAPABILITIES_HPP_INCLUDED

// Detect a number of compiler features - mostly C++11/14 conformance - 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_OR_GREATER : Is C++11 supported?

// CATCH_CONFIG_SFINAE : is basic (C++03) SFINAE supported?
// CATCH_CONFIG_VARIADIC_MACROS : are variadic macros supported?


// A lot of this code is based on Boost (1.53)

#ifdef __clang__

#  if __has_feature(cxx_nullptr)
#    define CATCH_CONFIG_CPP11_NULLPTR
#  endif

#  if __has_feature(cxx_noexcept)
#    define CATCH_CONFIG_CPP11_NOEXCEPT
#  endif

#endif // __clang__

////////////////////////////////////////////////////////////////////////////////
// Borland
#ifdef __BORLANDC__

#if (__BORLANDC__ > 0x582 )
//#define CATCH_CONFIG_SFINAE // Not confirmed
#endif

#endif // __BORLANDC__

////////////////////////////////////////////////////////////////////////////////
// EDG
#ifdef __EDG_VERSION__

#if (__EDG_VERSION__ > 238 )
//#define CATCH_CONFIG_SFINAE // Not confirmed
#endif

#endif // __EDG_VERSION__

////////////////////////////////////////////////////////////////////////////////
// Digital Mars
#ifdef __DMC__

#if (__DMC__ > 0x840 )
//#define CATCH_CONFIG_SFINAE // Not confirmed
#endif

#endif // __DMC__

////////////////////////////////////////////////////////////////////////////////
// GCC
#ifdef __GNUC__

#if __GNUC__ < 3

#if (__GNUC_MINOR__ >= 96 )
//#define CATCH_CONFIG_SFINAE
#endif

#elif __GNUC__ >= 3

// #define CATCH_CONFIG_SFINAE // Taking this out completely for now

#endif // __GNUC__ < 3

#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6 && defined(__GXX_EXPERIMENTAL_CXX0X__) )

#define CATCH_CONFIG_CPP11_NULLPTR
#endif


#endif // __GNUC__

////////////////////////////////////////////////////////////////////////////////
// Visual C++
#ifdef _MSC_VER

#if (_MSC_VER >= 1310 ) // (VC++ 7.0+)
//#define CATCH_CONFIG_SFINAE // Not confirmed
#endif

#if (_MSC_VER >= 1600)
#define CATCH_CONFIG_CPP11_NULLPTR
#endif

#if (_MSC_VER >= 1900 ) // (VC++ 13 (VS2015))
#define CATCH_CONFIG_CPP11_NOEXCEPT
#define CATCH_CONFIG_CPP11_GENERATED_METHODS
#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 )

#ifndef CATCH_CONFIG_NO_VARIADIC_MACROS
#define CATCH_CONFIG_VARIADIC_MACROS
#endif

#endif

////////////////////////////////////////////////////////////////////////////////
// C++ language feature support

// catch all support for C++11
#if (__cplusplus >= 201103L)

#  define CATCH_CPP11_OR_GREATER

#  ifndef CATCH_CONFIG_CPP11_NULLPTR
#    define CATCH_CONFIG_CPP11_NULLPTR
#  endif

#  ifndef CATCH_CONFIG_CPP11_NOEXCEPT
#    define CATCH_CONFIG_CPP11_NOEXCEPT
#  endif

#  ifndef CATCH_CONFIG_CPP11_GENERATED_METHODS
#    define CATCH_CONFIG_CPP11_GENERATED_METHODS
#  endif

#  ifndef CATCH_CONFIG_CPP11_IS_ENUM
#    define CATCH_CONFIG_CPP11_IS_ENUM
#  endif

#  ifndef CATCH_CONFIG_CPP11_TUPLE
#    define CATCH_CONFIG_CPP11_TUPLE
#  endif

#  ifndef CATCH_CONFIG_SFINAE
//#    define CATCH_CONFIG_SFINAE // Don't use, for now
#  endif

#  ifndef CATCH_CONFIG_VARIADIC_MACROS
#    define CATCH_CONFIG_VARIADIC_MACROS
#  endif

#endif // __cplusplus >= 201103L

// 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)
#endif

#endif // TWOBLUECUBES_CATCH_COMPILER_CAPABILITIES_HPP_INCLUDED