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Diffstat (limited to 'include/jsoncons/config/compiler_support.hpp')
| -rw-r--r-- | include/jsoncons/config/compiler_support.hpp | 389 |
1 files changed, 389 insertions, 0 deletions
diff --git a/include/jsoncons/config/compiler_support.hpp b/include/jsoncons/config/compiler_support.hpp new file mode 100644 index 0000000..15d30cf --- /dev/null +++ b/include/jsoncons/config/compiler_support.hpp @@ -0,0 +1,389 @@ +// Copyright 2013 Daniel Parker +// Distributed under the Boost license, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See https://github.com/danielaparker/jsoncons for latest version + +#ifndef JSONCONS_COMPILER_SUPPORT_HPP +#define JSONCONS_COMPILER_SUPPORT_HPP + +#include <stdexcept> +#include <string> +#include <cmath> +#include <exception> +#include <ostream> + +#if defined (__clang__) +#define JSONCONS_CLANG_VERSION (__clang_major__ * 10000 + __clang_minor__ * 100 + __clang_patchlevel__) +#endif + +// Uncomment the following line to suppress deprecated names (recommended for new code) +//#define JSONCONS_NO_DEPRECATED + +// The definitions below follow the definitions in compiler_support_p.h, https://github.com/01org/tinycbor +// MIT license + +// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54577 +#if defined(__GNUC__) && __GNUC__ == 4 && __GNUC_MINOR__ < 9 +#define JSONCONS_NO_VECTOR_ERASE_TAKES_CONST_ITERATOR 1 +#define JSONCONS_NO_MAP_CONS_TAKES_ALLOCATOR 1 +#endif + +#if defined(__clang__) +# define JSONCONS_FALLTHROUGH [[clang::fallthrough]] +#elif defined(__GNUC__) && ((__GNUC__ >= 7)) +# define JSONCONS_FALLTHROUGH __attribute__((fallthrough)) +#elif defined (__GNUC__) +# define JSONCONS_FALLTHROUGH // FALLTHRU +#else +# define JSONCONS_FALLTHROUGH +#endif + +#if defined(__GNUC__) || defined(__clang__) +#define JSONCONS_LIKELY(x) __builtin_expect(!!(x), 1) +#define JSONCONS_UNLIKELY(x) __builtin_expect(!!(x), 0) +#define JSONCONS_UNREACHABLE() __builtin_unreachable() +#elif defined(_MSC_VER) +#define JSONCONS_LIKELY(x) x +#define JSONCONS_UNLIKELY(x) x +#define JSONCONS_UNREACHABLE() __assume(0) +#else +#define JSONCONS_LIKELY(x) x +#define JSONCONS_UNLIKELY(x) x +#define JSONCONS_UNREACHABLE() do {} while (0) +#endif + +// Deprecated symbols markup +#if (defined(__cplusplus) && __cplusplus >= 201402L) +#define JSONCONS_DEPRECATED_MSG(msg) [[deprecated(msg)]] +#endif + +#if !defined(JSONCONS_DEPRECATED_MSG) && defined(__GNUC__) && defined(__has_extension) +#if __has_extension(attribute_deprecated_with_message) +#define JSONCONS_DEPRECATED_MSG(msg) __attribute__((deprecated(msg))) +#endif +#endif + +#if !defined(JSONCONS_DEPRECATED_MSG) && defined(_MSC_VER) +#if (_MSC_VER) >= 1920 +#define JSONCONS_DEPRECATED_MSG(msg) [[deprecated(msg)]] +#else +#define JSONCONS_DEPRECATED_MSG(msg) __declspec(deprecated(msg)) +#endif +#endif + +// Following boost/atomic/detail/config.hpp +#if !defined(JSONCONS_DEPRECATED_MSG) && (\ + (defined(__GNUC__) && ((__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0)) >= 405) ||\ + (defined(__SUNPRO_CC) && (__SUNPRO_CC + 0) >= 0x5130)) + #define JSONCONS_DEPRECATED_MSG(msg) __attribute__((deprecated(msg))) +#endif + +#if !defined(JSONCONS_DEPRECATED_MSG) && defined(__clang__) && defined(__has_extension) + #if __has_extension(attribute_deprecated_with_message) + #define JSONCONS_DEPRECATED_MSG(msg) __attribute__((deprecated(msg))) + #else + #define JSONCONS_DEPRECATED_MSG(msg) __attribute__((deprecated)) + #endif +#endif + +#if !defined(JSONCONS_DEPRECATED_MSG) +#define JSONCONS_DEPRECATED_MSG(msg) +#endif + +#if defined(ANDROID) || defined(__ANDROID__) +#if __ANDROID_API__ >= 21 +#define JSONCONS_HAS_STRTOLD_L +#else +#define JSONCONS_NO_LOCALECONV +#endif +#endif + +#if defined(_MSC_VER) +#define JSONCONS_HAS_MSC_STRTOD_L +#define JSONCONS_HAS_FOPEN_S +#endif + +#ifndef JSONCONS_HAS_CP14 + #if defined(_MSVC_LANG) + #if _MSVC_LANG >= 201402L + #define JSONCONS_HAS_CP14 + #endif + #elif __cplusplus >= 201402L + #define JSONCONS_HAS_CP14 + #endif +#endif + +#if !defined(JSONCONS_HAS_STD_FROM_CHARS) +# if defined(__GNUC__) +# if (__GNUC__ >= 11) +# if (__cplusplus >= 201703) +# define JSONCONS_HAS_STD_FROM_CHARS 1 +# endif // (__cplusplus >= 201703) +# endif // (__GNUC__ >= 11) +# endif // defined(__GNUC__) +# if defined(_MSC_VER) +# if (_MSC_VER >= 1924 && _MSVC_LANG >= 201703) +# define JSONCONS_HAS_STD_FROM_CHARS 1 +# endif // (_MSC_VER >= 1924 && MSVC_LANG >= 201703) +# endif // defined(_MSC_VER) +#endif +#if defined(JSONCONS_HAS_STD_FROM_CHARS) +#include <charconv> +#endif + +#if !defined(JSONCONS_HAS_2017) +# if defined(__clang__) +# if (__cplusplus >= 201703) +# define JSONCONS_HAS_2017 1 +# endif // (__cplusplus >= 201703) +# endif // defined(__clang__) +# if defined(__GNUC__) +# if (__GNUC__ >= 7) +# if (__cplusplus >= 201703) +# define JSONCONS_HAS_2017 1 +# endif // (__cplusplus >= 201703) +# endif // (__GNUC__ >= 7) +# endif // defined(__GNUC__) +# if defined(_MSC_VER) +# if (_MSC_VER >= 1910 && _MSVC_LANG >= 201703) +# define JSONCONS_HAS_2017 1 +# endif // (_MSC_VER >= 1910 && MSVC_LANG >= 201703) +# endif // defined(_MSC_VER) +#endif + +#if defined(JSONCONS_HAS_2017) + #define JSONCONS_NODISCARD [[nodiscard]] + #define JSONCONS_IF_CONSTEXPR if constexpr +#else + #define JSONCONS_NODISCARD + #define JSONCONS_IF_CONSTEXPR if +#endif + +#if !defined(JSONCONS_HAS_STD_STRING_VIEW) +# if (defined JSONCONS_HAS_2017) +# if defined(__clang__) +# if __has_include(<string_view>) +# define JSONCONS_HAS_STD_STRING_VIEW 1 +# endif // __has_include(<string_view>) +# else +# define JSONCONS_HAS_STD_STRING_VIEW 1 +# endif +# endif // defined(JSONCONS_HAS_2017) +#endif // !defined(JSONCONS_HAS_STD_STRING_VIEW) + +#if !defined(JSONCONS_HAS_STD_BYTE) +# if (defined JSONCONS_HAS_2017) +# define JSONCONS_HAS_STD_BYTE 1 +# endif // defined(JSONCONS_HAS_2017) +#endif // !defined(JSONCONS_HAS_STD_BYTE) + +#if !defined(JSONCONS_HAS_STD_OPTIONAL) +# if (defined JSONCONS_HAS_2017) +# if defined(__clang__) +# if __has_include(<optional>) +# define JSONCONS_HAS_STD_OPTIONAL 1 +# endif // __has_include(<string_view>) +# else +# define JSONCONS_HAS_STD_OPTIONAL 1 +# endif +# endif // defined(JSONCONS_HAS_2017) +#endif // !defined(JSONCONS_HAS_STD_OPTIONAL) + +#if !defined(JSONCONS_HAS_STD_VARIANT) +# if (defined JSONCONS_HAS_2017) +# if defined(__clang__) +# if defined(__APPLE__) +# if JSONCONS_CLANG_VERSION >= 100001 +# define JSONCONS_HAS_STD_VARIANT 1 +# endif +# elif __has_include(<variant>) +# define JSONCONS_HAS_STD_VARIANT 1 +# endif // __has_include(<variant>) +# else +# define JSONCONS_HAS_STD_VARIANT 1 +# endif +# endif // defined(JSONCONS_HAS_2017) +#endif // !defined(JSONCONS_HAS_STD_VARIANT) + +#if !defined(JSONCONS_HAS_FILESYSTEM) +# if (defined JSONCONS_HAS_2017) +# if defined(__clang__) +# if __has_include(<filesystem>) +# define JSONCONS_HAS_FILESYSTEM 1 +# endif // __has_include(<filesystem>) +# else +# define JSONCONS_HAS_FILESYSTEM 1 +# endif +# endif // defined(JSONCONS_HAS_2017) +#endif // !defined(JSONCONS_HAS_FILESYSTEM) + +#if (!defined(JSONCONS_NO_EXCEPTIONS)) +// Check if exceptions are disabled. +# if defined( __cpp_exceptions) && __cpp_exceptions == 0 +# define JSONCONS_NO_EXCEPTIONS 1 +# endif +#endif + +#if !defined(JSONCONS_NO_EXCEPTIONS) + +#if defined(__GNUC__) && !__EXCEPTIONS +# define JSONCONS_NO_EXCEPTIONS 1 +#elif _MSC_VER +#if defined(_HAS_EXCEPTIONS) && _HAS_EXCEPTIONS == 0 +# define JSONCONS_NO_EXCEPTIONS 1 +#elif !defined(_CPPUNWIND) +# define JSONCONS_NO_EXCEPTIONS 1 +#endif +#endif +#endif + +// allow to disable exceptions +#if !defined(JSONCONS_NO_EXCEPTIONS) + #define JSONCONS_THROW(exception) throw exception + #define JSONCONS_RETHROW throw + #define JSONCONS_TRY try + #define JSONCONS_CATCH(exception) catch(exception) +#else + #define JSONCONS_THROW(exception) std::terminate() + #define JSONCONS_RETHROW std::terminate() + #define JSONCONS_TRY if (true) + #define JSONCONS_CATCH(exception) if (false) +#endif + +#if !defined(JSONCONS_HAS_STD_MAKE_UNIQUE) + #if defined(__clang__) && defined(__cplusplus) + #if defined(__APPLE__) + #if __clang_major__ >= 6 && __cplusplus >= 201402L // Xcode 6 + #define JSONCONS_HAS_STD_MAKE_UNIQUE + #endif + #elif ((__clang_major__*100 +__clang_minor__) >= 340) && __cplusplus >= 201402L + #define JSONCONS_HAS_STD_MAKE_UNIQUE + #endif + #elif defined(__GNUC__) + #if (__GNUC__ * 100 + __GNUC_MINOR__) >= 409 && __cplusplus > 201103L + #define JSONCONS_HAS_STD_MAKE_UNIQUE + #endif + #elif defined(_MSC_VER) + #if _MSC_VER >= 1800 + #define JSONCONS_HAS_STD_MAKE_UNIQUE + #endif + #endif +#endif // !defined(JSONCONS_HAS_STD_MAKE_UNIQUE) + +#ifndef JSONCONS_HAS_CP14_CONSTEXPR + #if defined(_MSC_VER) + #if _MSC_VER >= 1910 + #define JSONCONS_HAS_CP14_CONSTEXPR + #endif + #elif defined(__GNUC__) + #if (__GNUC__ * 100 + __GNUC_MINOR__) >= 600 && __cplusplus >= 201402L + #define JSONCONS_HAS_CP14_CONSTEXPR + #endif + #endif +#endif + +#if defined(JSONCONS_HAS_CP14_CONSTEXPR) +# define JSONCONS_CPP14_CONSTEXPR constexpr +#else +# define JSONCONS_CPP14_CONSTEXPR +#endif + +// Follows boost + +// gcc and clang +#if (defined(__clang__) || defined(__GNUC__)) && defined(__cplusplus) +#if defined(__SIZEOF_INT128__) && !defined(_MSC_VER) +# define JSONCONS_HAS_INT128 +#endif + +#if (defined(linux) || defined(__linux) || defined(__linux__) || defined(__GNU__) || defined(__GLIBC__)) && !defined(_CRAYC) +#if (__clang_major__ >= 4) && defined(__has_include) +#if __has_include(<quadmath.h>) +# define JSONCONS_HAS_FLOAT128 +#endif +#endif +#endif +#endif + +#if defined(__GNUC__) +#if defined(_GLIBCXX_USE_FLOAT128) +# define JSONCONS_HAS_FLOAT128 +#endif +#endif + +#if defined(__clang__) +#if (defined(linux) || defined(__linux) || defined(__linux__) || defined(__GNU__) || defined(__GLIBC__)) && !defined(_CRAYC) +#if (__clang_major__ >= 4) && defined(__has_include) +#if __has_include(<quadmath.h>) +# define JSONCONS_HAS_FLOAT128 +#endif +#endif +#endif +#endif + +// Follows boost config/detail/suffix.hpp +#if defined(JSONCONS_HAS_INT128) && defined(__cplusplus) +namespace jsoncons{ +# ifdef __GNUC__ + __extension__ typedef __int128 int128_type; + __extension__ typedef unsigned __int128 uint128_type; +# else + typedef __int128 int128_type; + typedef unsigned __int128 uint128_type; +# endif +} +#endif +#if defined(JSONCONS_HAS_FLOAT128) && defined(__cplusplus) +namespace jsoncons { +# ifdef __GNUC__ + __extension__ typedef __float128 float128_type; +# else + typedef __float128 float128_type; +# endif +} +#endif + +#if defined(_MSC_VER) && _MSC_VER <= 1900 + #define JSONCONS_COPY(first,last,d_first) std::copy(first, last, stdext::make_checked_array_iterator(d_first, static_cast<std::size_t>(std::distance(first, last)))) +#else + #define JSONCONS_COPY(first,last,d_first) std::copy(first, last, d_first) +#endif + +#if defined(_MSC_VER) && _MSC_VER <= 1900 +#define JSONCONS_CONSTEXPR +#else +#define JSONCONS_CONSTEXPR constexpr +#endif + +namespace jsoncons { + + class assertion_error : public std::runtime_error + { + public: + assertion_error(const std::string& s) noexcept + : std::runtime_error(s) + { + } + const char* what() const noexcept override + { + return std::runtime_error::what(); + } + }; + +} // namespace jsoncons + +#define JSONCONS_STR2(x) #x +#define JSONCONS_STR(x) JSONCONS_STR2(x) + +#ifdef _DEBUG +#define JSONCONS_ASSERT(x) if (!(x)) { \ + JSONCONS_THROW(jsoncons::assertion_error("assertion '" #x "' failed at " __FILE__ ":" \ + JSONCONS_STR(__LINE__))); } +#else +#define JSONCONS_ASSERT(x) if (!(x)) { \ + JSONCONS_THROW(jsoncons::assertion_error("assertion '" #x "' failed at <> :" \ + JSONCONS_STR( 0 ))); } +#endif // _DEBUG + +#endif // JSONCONS_COMPILER_SUPPORT_HPP |