sol2/sol/feature_test.hpp

// sol2 

// The MIT License (MIT)

// Copyright (c) 2013-2018 Rapptz, ThePhD and contributors

// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:

// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

#ifndef SOL_FEATURE_TEST_HPP
#define SOL_FEATURE_TEST_HPP

#if (defined(__cplusplus) && __cplusplus == 201703L) || (defined(_MSC_VER) && _MSC_VER > 1900 && ((defined(_HAS_CXX17) && _HAS_CXX17 == 1) || (defined(_MSVC_LANG) && (_MSVC_LANG > 201402L))))
#ifndef SOL_CXX17_FEATURES
#define SOL_CXX17_FEATURES 1
#endif // C++17 features macro
#endif // C++17 features check

#if defined(SOL_CXX17_FEATURES) && SOL_CXX17_FEATURES
// TODO: there is a bug in the VC++ compiler??
// on /std:c++latest under x86 conditions (VS 15.5.2),
// compiler errors are tossed for noexcept markings being on function types
// that are identical in every other way to their non-noexcept marked types function types...
#if defined(__cpp_noexcept_function_type) || ((defined(_MSC_VER) && _MSC_VER > 1911) && (defined(_MSVC_LANG) && ((_MSVC_LANG >= 201403L))))
#ifndef SOL_NOEXCEPT_FUNCTION_TYPE
#define SOL_NOEXCEPT_FUNCTION_TYPE 1
#endif // noexcept is part of a function's type
#endif // compiler-specific checks
#if defined(__clang__) && defined(__APPLE__)
#if defined(__has_include)
#if __has_include(<variant>)
#define SOL_STD_VARIANT 1
#endif // has include nonsense
#endif // __has_include
#else
#define SOL_STD_VARIANT 1
#endif // Clang screws up variant
#endif // C++17 only

#include <sol/config.hpp>

#endif // SOL_FEATURE_TEST_HPP