200 lines
6.0 KiB
C++
200 lines
6.0 KiB
C++
/**
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* Predefined Symbols for C++
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* Nana C++ Library(http://www.nanapro.org)
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* Copyright(C) 2016 Jinhao(cnjinhao@hotmail.com)
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*
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* Distributed under the Boost Software License, Version 1.0.
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* (See accompanying file LICENSE_1_0.txt or copy at
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* http://www.boost.org/LICENSE_1_0.txt)
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*
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* @file nana/config.hpp
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*
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* @brief Provide switches to adapt to the target OS, use of external libraries or workarounds compiler errors or lack of std C++ support.
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*
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* To control target OS/compiler:
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* - NANA_WINDOWS
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* - NANA_MINGW
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* - NANA_POSIX
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* - NANA_LINUX
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* - NANA_MACOS
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* - NANA_X11
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*
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* External libraries:
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* - NANA_LIBPNG, USE_LIBPNG_FROM_OS
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* - NANA_LIBJPEG, USE_LIBJPEG_FROM_OS
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*
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* (see: Feature-testing recommendations for C++
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* in http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0096r0.html
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* for example: __cpp_lib_experimental_filesystem = 201406 in <experimental/filesystem)
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*
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* Workaround to known compiler errors, unnecessary warnings or lack of C++11/14/17 support:
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* - _SCL_SECURE_NO_WARNNGS, _CRT_SECURE_NO_DEPRECATE (VC)
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* - STD_CODECVT_NOT_SUPPORTED (VC RC, <codecvt> is a known issue on libstdc++, it works on libc++)
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* - STD_THREAD_NOT_SUPPORTED (GCC < 4.8.1)
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* - STD_put_time_NOT_SUPPORTED (GCC < 5)
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* - STD_NUMERIC_CONVERSIONS_NOT_SUPPORTED (MinGW with GCC < 4.8.1)
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* - STD_NUMERIC_CONVERSIONS_NOT_SUPPORTED (MinGW with GCC < 4.8.1)
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* - STD_TO_STRING_NOT_SUPPORTED (MinGW with GCC < 4.8)
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*/
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#ifndef NANA_CXX_DEFINES_INCLUDED
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#define NANA_CXX_DEFINES_INCLUDED
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#define STD_FILESYSTEM_NOT_SUPPORTED
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//C++ language
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#if defined(_MSC_VER)
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# undef STD_FILESYSTEM_NOT_SUPPORTED
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# if (_MSC_VER < 1900)
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# //Nana defines some macros for lack of support of keywords
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# define _ALLOW_KEYWORD_MACROS
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#
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# define CXX_NO_INLINE_NAMESPACE //no support of C++11 inline namespace until Visual C++ 2015
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# define noexcept //no support of noexcept until Visual C++ 2015
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# define constexpr //no support of constexpr until Visual C++ 2015
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# endif
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#elif defined(__GNUC__)
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# if (__GNUC__ == 4 && __GNUC_MINOR__ < 6)
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# define noexcept //no support of noexcept until GCC 4.6
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# endif
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#endif
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// Select platform ......
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#if defined(_WIN32) || defined(__WIN32__) || defined(WIN32) //Microsoft Windows
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#define NANA_WINDOWS
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// MINGW ...
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#if defined(__MINGW32__) || defined(__MINGW64__) || defined(MINGW)
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#define NANA_MINGW
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#endif // MINGW
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#elif defined(APPLE) //Mac OS X
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//Symbols for MACOS
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#define NANA_MACOS
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#define NANA_X11
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#elif (defined(linux) || defined(__linux) || defined(__linux__) || defined(__GNU__) || defined(__GLIBC__)) && !defined(_CRAYC) //Linux
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#define NANA_LINUX
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#define NANA_X11
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#else
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# static_assert(false, "Only Windows and Unix are supported now (Mac OS is experimental)");
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#endif
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//Define a symbol for POSIX operating system.
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#if defined(NANA_LINUX) || defined(NANA_MACOS)
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#define NANA_POSIX
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#endif
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// Select compiler ...
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#if defined(_MSC_VER) //Microsoft Visual C++
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#define _SCL_SECURE_NO_WARNNGS
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#define _CRT_SECURE_NO_DEPRECATE
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#pragma warning(disable : 4996)
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#if (_MSC_VER == 1900)
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// google: break any code that tries to use codecvt<char16_t> or codecvt<char32_t>.
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// google: It appears the C++ libs haven't been compiled with native char16_t/char32_t support.
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// google: Those definitions are for codecvt<wchar_t>::id, codecvt<unsigned short>::id and codecvt<char>::id respectively.
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// However, the codecvt<char16_t>::id and codecvt<char32_t>::id definitions aren't there, and indeed, if you look at locale0.cpp in the CRT source code you'll see they're not defined at all.
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// google: That's a known issue, tracked by an active bug (DevDiv#1060849). We were able to update the STL's headers in response to char16_t/char32_t, but we still need to update the separately compiled sources.
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#define STD_CODECVT_NOT_SUPPORTED
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#endif // _MSC_VER == 1900
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#elif defined(__clang__) //Clang
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#include <iosfwd> //Introduces some implement-specific flags of ISO C++ Library
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#if defined(__GLIBCPP__) || defined(__GLIBCXX__)
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//<codecvt> is a known issue on libstdc++, it works on libc++
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#define STD_CODECVT_NOT_SUPPORTED
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#ifndef STD_MAKE_UNIQUE_NOT_SUPPORTED
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#define STD_MAKE_UNIQUE_NOT_SUPPORTED
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#endif
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#endif
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#elif defined(__GNUC__) //GCC
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#include <iosfwd> //Introduces some implement-specific flags of ISO C++ Library
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#if defined(__GLIBCPP__) || defined(__GLIBCXX__)
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//<codecvt> is a known issue on libstdc++, it works on libc++
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#define STD_CODECVT_NOT_SUPPORTED
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//It's a known issue of libstdc++ on MinGW
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//introduce to_string/to_wstring workarounds for disabled capacity of stdlib
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#ifdef _GLIBCXX_HAVE_BROKEN_VSWPRINTF
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#if (__GNUC__ < 5)
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# define STD_TO_STRING_NOT_SUPPORTED
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#endif
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#define STD_TO_WSTRING_NOT_SUPPORTED
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#endif
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#endif
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#if ((__GNUC__ < 5) )
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# define STD_put_time_NOT_SUPPORTED
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#endif
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#if ((__GNUC__ > 5) || ((__GNUC__ == 5) && (__GNUC_MINOR__ >= 3 ) ) )
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# undef STD_FILESYSTEM_NOT_SUPPORTED
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#endif
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#if (__GNUC__ == 4)
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#if ((__GNUC_MINOR__ < 8) || (__GNUC_MINOR__ == 8 && __GNUC_PATCHLEVEL__ < 1))
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#define STD_THREAD_NOT_SUPPORTED
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#endif
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#if (__GNUC_MINOR__ < 9)
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#define STD_MAKE_UNIQUE_NOT_SUPPORTED
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#endif
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#if defined(NANA_MINGW)
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#ifndef __MINGW64_VERSION_MAJOR
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//It's a knonwn issue under MinGW(except MinGW-W64)
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#define STD_NUMERIC_CONVERSIONS_NOT_SUPPORTED
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#endif
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#endif
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#if (__GNUC_MINOR__ < 8)
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//introduce to_string/to_wstring workaround for lack of stdlib definitions
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#ifndef STD_TO_STRING_NOT_SUPPORTED
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# define STD_TO_STRING_NOT_SUPPORTED
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#endif
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#ifndef STD_TO_WSTRING_NOT_SUPPORTED
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# define STD_TO_WSTRING_NOT_SUPPORTED
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#endif
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#endif
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#endif
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#endif
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#if defined(NANA_WINDOWS)
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#ifndef _UNICODE
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#define _UNICODE
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#endif
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#ifndef UNICODE
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#define UNICODE
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#endif
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#endif
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// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0061r0.html
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# if __cpp_lib_experimental_filesystem
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# undef STD_FILESYSTEM_NOT_SUPPORTED
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# endif
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#ifdef __has_include
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# if __has_include(<filesystem>)
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# undef STD_FILESYSTEM_NOT_SUPPORTED
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# endif
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#endif
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#endif // NANA_CXX_DEFINES_INCLUDED
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