diff options
Diffstat (limited to 'clang-r353983e/include/c++/v1/__config')
| -rw-r--r-- | clang-r353983e/include/c++/v1/__config | 1443 |
1 files changed, 1443 insertions, 0 deletions
diff --git a/clang-r353983e/include/c++/v1/__config b/clang-r353983e/include/c++/v1/__config new file mode 100644 index 00000000..3ca66151 --- /dev/null +++ b/clang-r353983e/include/c++/v1/__config @@ -0,0 +1,1443 @@ +// -*- C++ -*- +//===--------------------------- __config ---------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP_CONFIG +#define _LIBCPP_CONFIG + +#if defined(_MSC_VER) && !defined(__clang__) +# if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) +# define _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER +# endif +#endif + +#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER +#pragma GCC system_header +#endif + +#ifdef __cplusplus + +#ifdef __GNUC__ +# define _GNUC_VER (__GNUC__ * 100 + __GNUC_MINOR__) +// The _GNUC_VER_NEW macro better represents the new GCC versioning scheme +// introduced in GCC 5.0. +# define _GNUC_VER_NEW (_GNUC_VER * 10 + __GNUC_PATCHLEVEL__) +#else +# define _GNUC_VER 0 +# define _GNUC_VER_NEW 0 +#endif + +#define _LIBCPP_VERSION 9000 + +#ifndef _LIBCPP_ABI_VERSION +# define _LIBCPP_ABI_VERSION 1 +#endif + +#ifndef _LIBCPP_STD_VER +# if __cplusplus <= 201103L +# define _LIBCPP_STD_VER 11 +# elif __cplusplus <= 201402L +# define _LIBCPP_STD_VER 14 +# elif __cplusplus <= 201703L +# define _LIBCPP_STD_VER 17 +# else +# define _LIBCPP_STD_VER 18 // current year, or date of c++2a ratification +# endif +#endif // _LIBCPP_STD_VER + +#if defined(__ELF__) +# define _LIBCPP_OBJECT_FORMAT_ELF 1 +#elif defined(__MACH__) +# define _LIBCPP_OBJECT_FORMAT_MACHO 1 +#elif defined(_WIN32) +# define _LIBCPP_OBJECT_FORMAT_COFF 1 +#elif defined(__wasm__) +# define _LIBCPP_OBJECT_FORMAT_WASM 1 +#else +# error Unknown object file format +#endif + +#if defined(_LIBCPP_ABI_UNSTABLE) || _LIBCPP_ABI_VERSION >= 2 +// Change short string representation so that string data starts at offset 0, +// improving its alignment in some cases. +# define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT +// Fix deque iterator type in order to support incomplete types. +# define _LIBCPP_ABI_INCOMPLETE_TYPES_IN_DEQUE +// Fix undefined behavior in how std::list stores its linked nodes. +# define _LIBCPP_ABI_LIST_REMOVE_NODE_POINTER_UB +// Fix undefined behavior in how __tree stores its end and parent nodes. +# define _LIBCPP_ABI_TREE_REMOVE_NODE_POINTER_UB +// Fix undefined behavior in how __hash_table stores its pointer types. +# define _LIBCPP_ABI_FIX_UNORDERED_NODE_POINTER_UB +# define _LIBCPP_ABI_FORWARD_LIST_REMOVE_NODE_POINTER_UB +# define _LIBCPP_ABI_FIX_UNORDERED_CONTAINER_SIZE_TYPE +// Don't use a nullptr_t simulation type in C++03 instead using C++11 nullptr +// provided under the alternate keyword __nullptr, which changes the mangling +// of nullptr_t. This option is ABI incompatible with GCC in C++03 mode. +# define _LIBCPP_ABI_ALWAYS_USE_CXX11_NULLPTR +// Define the `pointer_safety` enum as a C++11 strongly typed enumeration +// instead of as a class simulating an enum. If this option is enabled +// `pointer_safety` and `get_pointer_safety()` will no longer be available +// in C++03. +# define _LIBCPP_ABI_POINTER_SAFETY_ENUM_TYPE +// Define a key function for `bad_function_call` in the library, to centralize +// its vtable and typeinfo to libc++ rather than having all other libraries +// using that class define their own copies. +# define _LIBCPP_ABI_BAD_FUNCTION_CALL_KEY_FUNCTION +// Enable optimized version of __do_get_(un)signed which avoids redundant copies. +# define _LIBCPP_ABI_OPTIMIZED_LOCALE_NUM_GET +// Use the smallest possible integer type to represent the index of the variant. +// Previously libc++ used "unsigned int" exclusivly. +# define _LIBCPP_ABI_VARIANT_INDEX_TYPE_OPTIMIZATION +// Unstable attempt to provide a more optimized std::function +# define _LIBCPP_ABI_OPTIMIZED_FUNCTION +#elif _LIBCPP_ABI_VERSION == 1 +# if !defined(_LIBCPP_OBJECT_FORMAT_COFF) +// Enable compiling copies of now inline methods into the dylib to support +// applications compiled against older libraries. This is unnecessary with +// COFF dllexport semantics, since dllexport forces a non-inline definition +// of inline functions to be emitted anyway. Our own non-inline copy would +// conflict with the dllexport-emitted copy, so we disable it. +# define _LIBCPP_DEPRECATED_ABI_LEGACY_LIBRARY_DEFINITIONS_FOR_INLINE_FUNCTIONS +# endif +// Feature macros for disabling pre ABI v1 features. All of these options +// are deprecated. +# if defined(__FreeBSD__) +# define _LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR +# endif +#endif + +#ifdef _LIBCPP_TRIVIAL_PAIR_COPY_CTOR +#error "_LIBCPP_TRIVIAL_PAIR_COPY_CTOR" is no longer supported. \ + use _LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR instead +#endif + +#define _LIBCPP_CONCAT1(_LIBCPP_X,_LIBCPP_Y) _LIBCPP_X##_LIBCPP_Y +#define _LIBCPP_CONCAT(_LIBCPP_X,_LIBCPP_Y) _LIBCPP_CONCAT1(_LIBCPP_X,_LIBCPP_Y) + +#ifndef _LIBCPP_ABI_NAMESPACE +# define _LIBCPP_ABI_NAMESPACE _LIBCPP_CONCAT(__,_LIBCPP_ABI_VERSION) +#endif + +#if __cplusplus < 201103L +#define _LIBCPP_CXX03_LANG +#endif + +#ifndef __has_attribute +#define __has_attribute(__x) 0 +#endif + +#ifndef __has_builtin +#define __has_builtin(__x) 0 +#endif + +#ifndef __has_extension +#define __has_extension(__x) 0 +#endif + +#ifndef __has_feature +#define __has_feature(__x) 0 +#endif + +#ifndef __has_cpp_attribute +#define __has_cpp_attribute(__x) 0 +#endif + +// '__is_identifier' returns '0' if '__x' is a reserved identifier provided by +// the compiler and '1' otherwise. +#ifndef __is_identifier +#define __is_identifier(__x) 1 +#endif + +#ifndef __has_declspec_attribute +#define __has_declspec_attribute(__x) 0 +#endif + +#define __has_keyword(__x) !(__is_identifier(__x)) + +#ifndef __has_include +#define __has_include(...) 0 +#endif + +#if defined(__clang__) +# define _LIBCPP_COMPILER_CLANG +# ifndef __apple_build_version__ +# define _LIBCPP_CLANG_VER (__clang_major__ * 100 + __clang_minor__) +# endif +#elif defined(__GNUC__) +# define _LIBCPP_COMPILER_GCC +#elif defined(_MSC_VER) +# define _LIBCPP_COMPILER_MSVC +#elif defined(__IBMCPP__) +# define _LIBCPP_COMPILER_IBM +#endif + +#ifndef _LIBCPP_CLANG_VER +#define _LIBCPP_CLANG_VER 0 +#endif + +// FIXME: ABI detection should be done via compiler builtin macros. This +// is just a placeholder until Clang implements such macros. For now assume +// that Windows compilers pretending to be MSVC++ target the Microsoft ABI, +// and allow the user to explicitly specify the ABI to handle cases where this +// heuristic falls short. +#if defined(_LIBCPP_ABI_FORCE_ITANIUM) && defined(_LIBCPP_ABI_FORCE_MICROSOFT) +# error "Only one of _LIBCPP_ABI_FORCE_ITANIUM and _LIBCPP_ABI_FORCE_MICROSOFT can be defined" +#elif defined(_LIBCPP_ABI_FORCE_ITANIUM) +# define _LIBCPP_ABI_ITANIUM +#elif defined(_LIBCPP_ABI_FORCE_MICROSOFT) +# define _LIBCPP_ABI_MICROSOFT +#else +# if defined(_WIN32) && defined(_MSC_VER) +# define _LIBCPP_ABI_MICROSOFT +# else +# define _LIBCPP_ABI_ITANIUM +# endif +#endif + +// Need to detect which libc we're using if we're on Linux. +#if defined(__linux__) +# include <features.h> +# if defined(__GLIBC_PREREQ) +# define _LIBCPP_GLIBC_PREREQ(a, b) __GLIBC_PREREQ(a, b) +# else +# define _LIBCPP_GLIBC_PREREQ(a, b) 0 +# endif // defined(__GLIBC_PREREQ) +#endif // defined(__linux__) + +#ifdef __LITTLE_ENDIAN__ +# if __LITTLE_ENDIAN__ +# define _LIBCPP_LITTLE_ENDIAN +# endif // __LITTLE_ENDIAN__ +#endif // __LITTLE_ENDIAN__ + +#ifdef __BIG_ENDIAN__ +# if __BIG_ENDIAN__ +# define _LIBCPP_BIG_ENDIAN +# endif // __BIG_ENDIAN__ +#endif // __BIG_ENDIAN__ + +#ifdef __BYTE_ORDER__ +# if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ +# define _LIBCPP_LITTLE_ENDIAN +# elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ +# define _LIBCPP_BIG_ENDIAN +# endif // __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ +#endif // __BYTE_ORDER__ + +#ifdef __FreeBSD__ +# include <sys/endian.h> +# if _BYTE_ORDER == _LITTLE_ENDIAN +# define _LIBCPP_LITTLE_ENDIAN +# else // _BYTE_ORDER == _LITTLE_ENDIAN +# define _LIBCPP_BIG_ENDIAN +# endif // _BYTE_ORDER == _LITTLE_ENDIAN +# ifndef __LONG_LONG_SUPPORTED +# define _LIBCPP_HAS_NO_LONG_LONG +# endif // __LONG_LONG_SUPPORTED +#endif // __FreeBSD__ + +#ifdef __NetBSD__ +# include <sys/endian.h> +# if _BYTE_ORDER == _LITTLE_ENDIAN +# define _LIBCPP_LITTLE_ENDIAN +# else // _BYTE_ORDER == _LITTLE_ENDIAN +# define _LIBCPP_BIG_ENDIAN +# endif // _BYTE_ORDER == _LITTLE_ENDIAN +# define _LIBCPP_HAS_QUICK_EXIT +#endif // __NetBSD__ + +#if defined(_WIN32) +# define _LIBCPP_WIN32API +# define _LIBCPP_LITTLE_ENDIAN +# define _LIBCPP_SHORT_WCHAR 1 +// Both MinGW and native MSVC provide a "MSVC"-like enviroment +# define _LIBCPP_MSVCRT_LIKE +// If mingw not explicitly detected, assume using MS C runtime only if +// a MS compatibility version is specified. +# if defined(_MSC_VER) && !defined(__MINGW32__) +# define _LIBCPP_MSVCRT // Using Microsoft's C Runtime library +# endif +# if (defined(_M_AMD64) || defined(__x86_64__)) || (defined(_M_ARM) || defined(__arm__)) +# define _LIBCPP_HAS_BITSCAN64 +# endif +# define _LIBCPP_HAS_OPEN_WITH_WCHAR +# if defined(_LIBCPP_MSVCRT) +# define _LIBCPP_HAS_QUICK_EXIT +# endif + +// Some CRT APIs are unavailable to store apps +# if defined(WINAPI_FAMILY) +# include <winapifamily.h> +# if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) && \ + (!defined(WINAPI_PARTITION_SYSTEM) || \ + !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_SYSTEM)) +# define _LIBCPP_WINDOWS_STORE_APP +# endif +# endif +#endif // defined(_WIN32) + +#ifdef __sun__ +# include <sys/isa_defs.h> +# ifdef _LITTLE_ENDIAN +# define _LIBCPP_LITTLE_ENDIAN +# else +# define _LIBCPP_BIG_ENDIAN +# endif +#endif // __sun__ + +#if defined(__CloudABI__) + // Certain architectures provide arc4random(). Prefer using + // arc4random() over /dev/{u,}random to make it possible to obtain + // random data even when using sandboxing mechanisms such as chroots, + // Capsicum, etc. +# define _LIBCPP_USING_ARC4_RANDOM +#elif defined(__Fuchsia__) +# define _LIBCPP_USING_GETENTROPY +#elif defined(__native_client__) + // NaCl's sandbox (which PNaCl also runs in) doesn't allow filesystem access, + // including accesses to the special files under /dev. C++11's + // std::random_device is instead exposed through a NaCl syscall. +# define _LIBCPP_USING_NACL_RANDOM +#elif defined(_LIBCPP_WIN32API) +# define _LIBCPP_USING_WIN32_RANDOM +#else +# define _LIBCPP_USING_DEV_RANDOM +#endif + +#if !defined(_LIBCPP_LITTLE_ENDIAN) && !defined(_LIBCPP_BIG_ENDIAN) +# include <endian.h> +# if __BYTE_ORDER == __LITTLE_ENDIAN +# define _LIBCPP_LITTLE_ENDIAN +# elif __BYTE_ORDER == __BIG_ENDIAN +# define _LIBCPP_BIG_ENDIAN +# else // __BYTE_ORDER == __BIG_ENDIAN +# error unable to determine endian +# endif +#endif // !defined(_LIBCPP_LITTLE_ENDIAN) && !defined(_LIBCPP_BIG_ENDIAN) + +#if __has_attribute(__no_sanitize__) && !defined(_LIBCPP_COMPILER_GCC) +# define _LIBCPP_NO_CFI __attribute__((__no_sanitize__("cfi"))) +#else +# define _LIBCPP_NO_CFI +#endif + +#if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L +# if defined(__FreeBSD__) +# define _LIBCPP_HAS_QUICK_EXIT +# define _LIBCPP_HAS_C11_FEATURES +# elif defined(__Fuchsia__) +# define _LIBCPP_HAS_QUICK_EXIT +# define _LIBCPP_HAS_TIMESPEC_GET +# define _LIBCPP_HAS_C11_FEATURES +# elif defined(__linux__) +# if !defined(_LIBCPP_HAS_MUSL_LIBC) +# if _LIBCPP_GLIBC_PREREQ(2, 15) || defined(__BIONIC__) +# define _LIBCPP_HAS_QUICK_EXIT +# endif +# if _LIBCPP_GLIBC_PREREQ(2, 17) +# define _LIBCPP_HAS_C11_FEATURES +# define _LIBCPP_HAS_TIMESPEC_GET +# endif +# else // defined(_LIBCPP_HAS_MUSL_LIBC) +# define _LIBCPP_HAS_QUICK_EXIT +# define _LIBCPP_HAS_TIMESPEC_GET +# define _LIBCPP_HAS_C11_FEATURES +# endif +# endif // __linux__ +#endif + +#ifndef _LIBCPP_CXX03_LANG +# define _LIBCPP_ALIGNOF(_Tp) alignof(_Tp) +#elif defined(_LIBCPP_COMPILER_CLANG) +# define _LIBCPP_ALIGNOF(_Tp) _Alignof(_Tp) +#else +// This definition is potentially buggy, but it's only taken with GCC in C++03, +// which we barely support anyway. See llvm.org/PR39713 +# define _LIBCPP_ALIGNOF(_Tp) __alignof(_Tp) +#endif + +#define _LIBCPP_PREFERRED_ALIGNOF(_Tp) __alignof(_Tp) + +#if defined(_LIBCPP_COMPILER_CLANG) + +// _LIBCPP_ALTERNATE_STRING_LAYOUT is an old name for +// _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT left here for backward compatibility. +#if (defined(__APPLE__) && !defined(__i386__) && !defined(__x86_64__) && \ + (!defined(__arm__) || __ARM_ARCH_7K__ >= 2)) || \ + defined(_LIBCPP_ALTERNATE_STRING_LAYOUT) +#define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT +#endif + +#if __has_feature(cxx_alignas) +# define _ALIGNAS_TYPE(x) alignas(x) +# define _ALIGNAS(x) alignas(x) +#else +# define _ALIGNAS_TYPE(x) __attribute__((__aligned__(_LIBCPP_ALIGNOF(x)))) +# define _ALIGNAS(x) __attribute__((__aligned__(x))) +#endif + +#if __cplusplus < 201103L +typedef __char16_t char16_t; +typedef __char32_t char32_t; +#endif + +#if !(__has_feature(cxx_exceptions)) && !defined(_LIBCPP_NO_EXCEPTIONS) +#define _LIBCPP_NO_EXCEPTIONS +#endif + +#if !(__has_feature(cxx_rtti)) && !defined(_LIBCPP_NO_RTTI) +#define _LIBCPP_NO_RTTI +#endif + +#if !(__has_feature(cxx_strong_enums)) +#define _LIBCPP_HAS_NO_STRONG_ENUMS +#endif + +#if !(__has_feature(cxx_decltype)) +#define _LIBCPP_HAS_NO_DECLTYPE +#endif + +#if __has_feature(cxx_attributes) +# define _LIBCPP_NORETURN [[noreturn]] +#else +# define _LIBCPP_NORETURN __attribute__ ((noreturn)) +#endif + +#if !(__has_feature(cxx_lambdas)) +#define _LIBCPP_HAS_NO_LAMBDAS +#endif + +#if !(__has_feature(cxx_nullptr)) +# if (__has_extension(cxx_nullptr) || __has_keyword(__nullptr)) && defined(_LIBCPP_ABI_ALWAYS_USE_CXX11_NULLPTR) +# define nullptr __nullptr +# else +# define _LIBCPP_HAS_NO_NULLPTR +# endif +#endif + +#if !(__has_feature(cxx_rvalue_references)) +#define _LIBCPP_HAS_NO_RVALUE_REFERENCES +#endif + +#if !(__has_feature(cxx_auto_type)) +#define _LIBCPP_HAS_NO_AUTO_TYPE +#endif + +#if !(__has_feature(cxx_variadic_templates)) +#define _LIBCPP_HAS_NO_VARIADICS +#endif + +#if !(__has_feature(cxx_generalized_initializers)) +#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS +#endif + +#if __has_feature(is_base_of) +#define _LIBCPP_HAS_IS_BASE_OF +#endif + +#if __has_feature(is_final) +#define _LIBCPP_HAS_IS_FINAL +#endif + +// Objective-C++ features (opt-in) +#if __has_feature(objc_arc) +#define _LIBCPP_HAS_OBJC_ARC +#endif + +#if __has_feature(objc_arc_weak) +#define _LIBCPP_HAS_OBJC_ARC_WEAK +#endif + +#if !(__has_feature(cxx_constexpr)) +#define _LIBCPP_HAS_NO_CONSTEXPR +#endif + +#if !(__has_feature(cxx_relaxed_constexpr)) +#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR +#endif + +#if !(__has_feature(cxx_variable_templates)) +#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES +#endif + +#if !(__has_feature(cxx_noexcept)) +#define _LIBCPP_HAS_NO_NOEXCEPT +#endif + +#if __has_feature(underlying_type) +#define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T) +#endif + +#if __has_feature(is_literal) +#define _LIBCPP_IS_LITERAL(T) __is_literal(T) +#endif + +#if !defined(_LIBCPP_HAS_NO_ASAN) && !__has_feature(address_sanitizer) +#define _LIBCPP_HAS_NO_ASAN +#endif + +// Allow for build-time disabling of unsigned integer sanitization +#if !defined(_LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK) && __has_attribute(no_sanitize) +#define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK __attribute__((__no_sanitize__("unsigned-integer-overflow"))) +#endif + +#if __has_builtin(__builtin_launder) +#define _LIBCPP_COMPILER_HAS_BUILTIN_LAUNDER +#endif + +#if !__is_identifier(__has_unique_object_representations) +#define _LIBCPP_HAS_UNIQUE_OBJECT_REPRESENTATIONS +#endif + +#define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__)) + +// No apple compilers support ""d and ""y at this time. +#if _LIBCPP_CLANG_VER < 800 || defined(__apple_build_version__) +#define _LIBCPP_HAS_NO_CXX20_CHRONO_LITERALS +#endif + +#elif defined(_LIBCPP_COMPILER_GCC) + +#define _ALIGNAS(x) __attribute__((__aligned__(x))) +#define _ALIGNAS_TYPE(x) __attribute__((__aligned__(_LIBCPP_ALIGNOF(x)))) + +#define _LIBCPP_NORETURN __attribute__((noreturn)) + +#if _GNUC_VER >= 407 +#define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T) +#define _LIBCPP_IS_LITERAL(T) __is_literal_type(T) +#define _LIBCPP_HAS_IS_FINAL +#endif + +#if defined(__GNUC__) && _GNUC_VER >= 403 +#define _LIBCPP_HAS_IS_BASE_OF +#endif + +#if !__EXCEPTIONS && !defined(_LIBCPP_NO_EXCEPTIONS) +#define _LIBCPP_NO_EXCEPTIONS +#endif + +// constexpr was added to GCC in 4.6. +#if _GNUC_VER < 406 +# define _LIBCPP_HAS_NO_CONSTEXPR +// Can only use constexpr in c++11 mode. +#elif !defined(__GXX_EXPERIMENTAL_CXX0X__) && __cplusplus < 201103L +# define _LIBCPP_HAS_NO_CONSTEXPR +#endif + +// Determine if GCC supports relaxed constexpr +#if !defined(__cpp_constexpr) || __cpp_constexpr < 201304L +#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR +#endif + +// GCC 5 will support variable templates +#if !defined(__cpp_variable_templates) || __cpp_variable_templates < 201304L +#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES +#endif + +#ifndef __GXX_EXPERIMENTAL_CXX0X__ + +#define _LIBCPP_HAS_NO_DECLTYPE +#define _LIBCPP_HAS_NO_NULLPTR +#define _LIBCPP_HAS_NO_UNICODE_CHARS +#define _LIBCPP_HAS_NO_VARIADICS +#define _LIBCPP_HAS_NO_RVALUE_REFERENCES +#define _LIBCPP_HAS_NO_STRONG_ENUMS +#define _LIBCPP_HAS_NO_NOEXCEPT + +#else // __GXX_EXPERIMENTAL_CXX0X__ + +#if _GNUC_VER < 403 +#define _LIBCPP_HAS_NO_RVALUE_REFERENCES +#endif + + +#if _GNUC_VER < 404 +#define _LIBCPP_HAS_NO_DECLTYPE +#define _LIBCPP_HAS_NO_UNICODE_CHARS +#define _LIBCPP_HAS_NO_VARIADICS +#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS +#endif // _GNUC_VER < 404 + +#if _GNUC_VER < 406 +#define _LIBCPP_HAS_NO_NOEXCEPT +#define _LIBCPP_HAS_NO_NULLPTR +#endif + +#endif // __GXX_EXPERIMENTAL_CXX0X__ + +#if !defined(_LIBCPP_HAS_NO_ASAN) && !defined(__SANITIZE_ADDRESS__) +#define _LIBCPP_HAS_NO_ASAN +#endif + +#if _GNUC_VER >= 700 +#define _LIBCPP_COMPILER_HAS_BUILTIN_LAUNDER +#endif + +#if _GNUC_VER >= 700 +#define _LIBCPP_HAS_UNIQUE_OBJECT_REPRESENTATIONS +#endif + +#define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__)) + +#elif defined(_LIBCPP_COMPILER_MSVC) + +#define _LIBCPP_TOSTRING2(x) #x +#define _LIBCPP_TOSTRING(x) _LIBCPP_TOSTRING2(x) +#define _LIBCPP_WARNING(x) __pragma(message(__FILE__ "(" _LIBCPP_TOSTRING(__LINE__) ") : warning note: " x)) + +#if _MSC_VER < 1900 +#error "MSVC versions prior to Visual Studio 2015 are not supported" +#endif + +#define _LIBCPP_HAS_IS_BASE_OF +#define _LIBCPP_HAS_NO_CONSTEXPR +#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR +#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES +#define _LIBCPP_HAS_NO_NOEXCEPT +#define __alignof__ __alignof +#define _LIBCPP_NORETURN __declspec(noreturn) +#define _ALIGNAS(x) __declspec(align(x)) +#define _ALIGNAS_TYPE(x) alignas(x) +#define _LIBCPP_HAS_NO_VARIADICS + +#define _LIBCPP_WEAK + +#define _LIBCPP_HAS_NO_ASAN + +#define _LIBCPP_ALWAYS_INLINE __forceinline + +#define _LIBCPP_HAS_NO_VECTOR_EXTENSION + +#elif defined(_LIBCPP_COMPILER_IBM) + +#define _ALIGNAS(x) __attribute__((__aligned__(x))) +#define _ALIGNAS_TYPE(x) __attribute__((__aligned__(_LIBCPP_ALIGNOF(x)))) +#define _ATTRIBUTE(x) __attribute__((x)) +#define _LIBCPP_NORETURN __attribute__((noreturn)) + +#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS +#define _LIBCPP_HAS_NO_NOEXCEPT +#define _LIBCPP_HAS_NO_NULLPTR +#define _LIBCPP_HAS_NO_UNICODE_CHARS +#define _LIBCPP_HAS_IS_BASE_OF +#define _LIBCPP_HAS_IS_FINAL +#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES + +#if defined(_AIX) +#define __MULTILOCALE_API +#endif + +#define _LIBCPP_HAS_NO_ASAN + +#define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__)) + +#define _LIBCPP_HAS_NO_VECTOR_EXTENSION + +#endif // _LIBCPP_COMPILER_[CLANG|GCC|MSVC|IBM] + +#if defined(_LIBCPP_OBJECT_FORMAT_COFF) + +#ifdef _DLL +# define _LIBCPP_CRT_FUNC __declspec(dllimport) +#else +# define _LIBCPP_CRT_FUNC +#endif + +#if defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) +# define _LIBCPP_DLL_VIS +# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS +# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS +# define _LIBCPP_OVERRIDABLE_FUNC_VIS +# define _LIBCPP_EXPORTED_FROM_ABI +#elif defined(_LIBCPP_BUILDING_LIBRARY) +# define _LIBCPP_DLL_VIS __declspec(dllexport) +# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS +# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS _LIBCPP_DLL_VIS +# define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_DLL_VIS +# define _LIBCPP_EXPORTED_FROM_ABI __declspec(dllexport) +#else +# define _LIBCPP_DLL_VIS __declspec(dllimport) +# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS _LIBCPP_DLL_VIS +# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS +# define _LIBCPP_OVERRIDABLE_FUNC_VIS +# define _LIBCPP_EXPORTED_FROM_ABI __declspec(dllimport) +#endif + +#define _LIBCPP_TYPE_VIS _LIBCPP_DLL_VIS +#define _LIBCPP_FUNC_VIS _LIBCPP_DLL_VIS +#define _LIBCPP_EXCEPTION_ABI _LIBCPP_DLL_VIS +#define _LIBCPP_HIDDEN +#define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS +#define _LIBCPP_TEMPLATE_VIS +#define _LIBCPP_ENUM_VIS + +#endif // defined(_LIBCPP_OBJECT_FORMAT_COFF) + +#ifndef _LIBCPP_HIDDEN +# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) +# define _LIBCPP_HIDDEN __attribute__ ((__visibility__("hidden"))) +# else +# define _LIBCPP_HIDDEN +# endif +#endif + +#ifndef _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS +# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) +// The inline should be removed once PR32114 is resolved +# define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS inline _LIBCPP_HIDDEN +# else +# define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS +# endif +#endif + +#ifndef _LIBCPP_FUNC_VIS +# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) +# define _LIBCPP_FUNC_VIS __attribute__ ((__visibility__("default"))) +# else +# define _LIBCPP_FUNC_VIS +# endif +#endif + +#ifndef _LIBCPP_TYPE_VIS +# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) +# define _LIBCPP_TYPE_VIS __attribute__ ((__visibility__("default"))) +# else +# define _LIBCPP_TYPE_VIS +# endif +#endif + +#ifndef _LIBCPP_TEMPLATE_VIS +# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) +# if __has_attribute(__type_visibility__) +# define _LIBCPP_TEMPLATE_VIS __attribute__ ((__type_visibility__("default"))) +# else +# define _LIBCPP_TEMPLATE_VIS __attribute__ ((__visibility__("default"))) +# endif +# else +# define _LIBCPP_TEMPLATE_VIS +# endif +#endif + +#ifndef _LIBCPP_EXPORTED_FROM_ABI +# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) +# define _LIBCPP_EXPORTED_FROM_ABI __attribute__((__visibility__("default"))) +# else +# define _LIBCPP_EXPORTED_FROM_ABI +# endif +#endif + +#ifndef _LIBCPP_OVERRIDABLE_FUNC_VIS +#define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_FUNC_VIS +#endif + +#ifndef _LIBCPP_EXCEPTION_ABI +# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) +# define _LIBCPP_EXCEPTION_ABI __attribute__ ((__visibility__("default"))) +# else +# define _LIBCPP_EXCEPTION_ABI +# endif +#endif + +#ifndef _LIBCPP_ENUM_VIS +# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__) +# define _LIBCPP_ENUM_VIS __attribute__ ((__type_visibility__("default"))) +# else +# define _LIBCPP_ENUM_VIS +# endif +#endif + +#ifndef _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS +# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__) +# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS __attribute__ ((__visibility__("default"))) +# else +# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS +# endif +#endif + +#ifndef _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS +#define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS +#endif + +#if __has_attribute(internal_linkage) +# define _LIBCPP_INTERNAL_LINKAGE __attribute__ ((internal_linkage)) +#else +# define _LIBCPP_INTERNAL_LINKAGE _LIBCPP_ALWAYS_INLINE +#endif + +#if __has_attribute(exclude_from_explicit_instantiation) +# define _LIBCPP_EXCLUDE_FROM_EXPLICIT_INSTANTIATION __attribute__ ((__exclude_from_explicit_instantiation__)) +#else + // Try to approximate the effect of exclude_from_explicit_instantiation + // (which is that entities are not assumed to be provided by explicit + // template instantitations in the dylib) by always inlining those entities. +# define _LIBCPP_EXCLUDE_FROM_EXPLICIT_INSTANTIATION _LIBCPP_ALWAYS_INLINE +#endif + +#ifndef _LIBCPP_HIDE_FROM_ABI_PER_TU +# ifndef _LIBCPP_HIDE_FROM_ABI_PER_TU_BY_DEFAULT +# define _LIBCPP_HIDE_FROM_ABI_PER_TU 0 +# else +# define _LIBCPP_HIDE_FROM_ABI_PER_TU 1 +# endif +#endif + +#ifndef _LIBCPP_HIDE_FROM_ABI +# if _LIBCPP_HIDE_FROM_ABI_PER_TU +# define _LIBCPP_HIDE_FROM_ABI _LIBCPP_HIDDEN _LIBCPP_INTERNAL_LINKAGE +# else +# define _LIBCPP_HIDE_FROM_ABI _LIBCPP_HIDDEN _LIBCPP_EXCLUDE_FROM_EXPLICIT_INSTANTIATION +# endif +#endif + +#ifdef _LIBCPP_BUILDING_LIBRARY +# if _LIBCPP_ABI_VERSION > 1 +# define _LIBCPP_HIDE_FROM_ABI_AFTER_V1 _LIBCPP_HIDE_FROM_ABI +# else +# define _LIBCPP_HIDE_FROM_ABI_AFTER_V1 +# endif +#else +# define _LIBCPP_HIDE_FROM_ABI_AFTER_V1 _LIBCPP_HIDE_FROM_ABI +#endif + +// Just so we can migrate to the new macros gradually. +#define _LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI + +// Inline namespaces are available in Clang/GCC/MSVC regardless of C++ dialect. +#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { inline namespace _LIBCPP_ABI_NAMESPACE { +#define _LIBCPP_END_NAMESPACE_STD } } +#define _VSTD std::_LIBCPP_ABI_NAMESPACE +_LIBCPP_BEGIN_NAMESPACE_STD _LIBCPP_END_NAMESPACE_STD + +#if _LIBCPP_STD_VER >= 17 +#define _LIBCPP_BEGIN_NAMESPACE_FILESYSTEM \ + _LIBCPP_BEGIN_NAMESPACE_STD inline namespace __fs { namespace filesystem { +#else +#define _LIBCPP_BEGIN_NAMESPACE_FILESYSTEM \ + _LIBCPP_BEGIN_NAMESPACE_STD namespace __fs { namespace filesystem { +#endif + +#define _LIBCPP_END_NAMESPACE_FILESYSTEM \ + _LIBCPP_END_NAMESPACE_STD } } + +#define _VSTD_FS _VSTD::__fs::filesystem + +#ifndef _LIBCPP_PREFERRED_OVERLOAD +# if __has_attribute(__enable_if__) +# define _LIBCPP_PREFERRED_OVERLOAD __attribute__ ((__enable_if__(true, ""))) +# endif +#endif + +#ifndef _LIBCPP_HAS_NO_NOEXCEPT +# define _NOEXCEPT noexcept +# define _NOEXCEPT_(x) noexcept(x) +#else +# define _NOEXCEPT throw() +# define _NOEXCEPT_(x) +#endif + +#if defined(_LIBCPP_DEBUG_USE_EXCEPTIONS) +# if !defined(_LIBCPP_DEBUG) +# error cannot use _LIBCPP_DEBUG_USE_EXCEPTIONS unless _LIBCPP_DEBUG is defined +# endif +# ifdef _LIBCPP_HAS_NO_NOEXCEPT +# define _NOEXCEPT_DEBUG +# define _NOEXCEPT_DEBUG_(x) +# else +# define _NOEXCEPT_DEBUG noexcept(false) +# define _NOEXCEPT_DEBUG_(x) noexcept(false) +# endif +#else +# define _NOEXCEPT_DEBUG _NOEXCEPT +# define _NOEXCEPT_DEBUG_(x) _NOEXCEPT_(x) +#endif + +#ifdef _LIBCPP_HAS_NO_UNICODE_CHARS +typedef unsigned short char16_t; +typedef unsigned int char32_t; +#endif // _LIBCPP_HAS_NO_UNICODE_CHARS + +#ifndef __SIZEOF_INT128__ +#define _LIBCPP_HAS_NO_INT128 +#endif + +#ifdef _LIBCPP_CXX03_LANG +# if __has_extension(c_static_assert) +# define static_assert(__b, __m) _Static_assert(__b, __m) +# else +extern "C++" { +template <bool> struct __static_assert_test; +template <> struct __static_assert_test<true> {}; +template <unsigned> struct __static_assert_check {}; +} +# define static_assert(__b, __m) \ + typedef __static_assert_check<sizeof(__static_assert_test<(__b)>)> \ + _LIBCPP_CONCAT(__t, __LINE__) +# endif // __has_extension(c_static_assert) +#endif // _LIBCPP_CXX03_LANG + +#ifdef _LIBCPP_HAS_NO_DECLTYPE +// GCC 4.6 provides __decltype in all standard modes. +# if __has_keyword(__decltype) || _LIBCPP_CLANG_VER >= 304 || _GNUC_VER >= 406 +# define decltype(__x) __decltype(__x) +# else +# define decltype(__x) __typeof__(__x) +# endif +#endif + +#ifdef _LIBCPP_HAS_NO_CONSTEXPR +# define _LIBCPP_CONSTEXPR +#else +# define _LIBCPP_CONSTEXPR constexpr +#endif + +#ifdef _LIBCPP_CXX03_LANG +# define _LIBCPP_DEFAULT {} +#else +# define _LIBCPP_DEFAULT = default; +#endif + +#ifdef _LIBCPP_CXX03_LANG +# define _LIBCPP_EQUAL_DELETE +#else +# define _LIBCPP_EQUAL_DELETE = delete +#endif + +#ifdef __GNUC__ +# define _NOALIAS __attribute__((__malloc__)) +#else +# define _NOALIAS +#endif + +#if __has_feature(cxx_explicit_conversions) || defined(__IBMCPP__) || \ + (!defined(_LIBCPP_CXX03_LANG) && defined(__GNUC__)) // All supported GCC versions +# define _LIBCPP_EXPLICIT explicit +#else +# define _LIBCPP_EXPLICIT +#endif + +#if !__has_builtin(__builtin_operator_new) || !__has_builtin(__builtin_operator_delete) +#define _LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE +#endif + +#ifdef _LIBCPP_HAS_NO_STRONG_ENUMS +# define _LIBCPP_DECLARE_STRONG_ENUM(x) struct _LIBCPP_TYPE_VIS x { enum __lx +# define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) \ + __lx __v_; \ + _LIBCPP_INLINE_VISIBILITY x(__lx __v) : __v_(__v) {} \ + _LIBCPP_INLINE_VISIBILITY explicit x(int __v) : __v_(static_cast<__lx>(__v)) {} \ + _LIBCPP_INLINE_VISIBILITY operator int() const {return __v_;} \ + }; +#else // _LIBCPP_HAS_NO_STRONG_ENUMS +# define _LIBCPP_DECLARE_STRONG_ENUM(x) enum class _LIBCPP_ENUM_VIS x +# define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) +#endif // _LIBCPP_HAS_NO_STRONG_ENUMS + +#ifdef _LIBCPP_DEBUG +# if _LIBCPP_DEBUG == 0 +# define _LIBCPP_DEBUG_LEVEL 1 +# elif _LIBCPP_DEBUG == 1 +# define _LIBCPP_DEBUG_LEVEL 2 +# else +# error Supported values for _LIBCPP_DEBUG are 0 and 1 +# endif +# if !defined(_LIBCPP_BUILDING_LIBRARY) +# define _LIBCPP_EXTERN_TEMPLATE(...) +# endif +#endif + +#ifdef _LIBCPP_DISABLE_EXTERN_TEMPLATE +#define _LIBCPP_EXTERN_TEMPLATE(...) +#define _LIBCPP_EXTERN_TEMPLATE2(...) +#endif + +#ifndef _LIBCPP_EXTERN_TEMPLATE +#define _LIBCPP_EXTERN_TEMPLATE(...) extern template __VA_ARGS__; +#endif + +#ifndef _LIBCPP_EXTERN_TEMPLATE2 +#define _LIBCPP_EXTERN_TEMPLATE2(...) extern template __VA_ARGS__; +#endif + +#if defined(__APPLE__) && defined(__LP64__) && !defined(__x86_64__) +#define _LIBCPP_NONUNIQUE_RTTI_BIT (1ULL << 63) +#endif + +#if defined(__APPLE__) || defined(__FreeBSD__) || defined(_LIBCPP_MSVCRT_LIKE) || \ + defined(__sun__) || defined(__NetBSD__) || defined(__CloudABI__) +#define _LIBCPP_LOCALE__L_EXTENSIONS 1 +#endif + +#if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__)) +// Most unix variants have catopen. These are the specific ones that don't. +# if !defined(__BIONIC__) && !defined(_NEWLIB_VERSION) +# define _LIBCPP_HAS_CATOPEN 1 +# endif +#endif + +#ifdef __FreeBSD__ +#define _DECLARE_C99_LDBL_MATH 1 +#endif + +#if defined(_LIBCPP_ABI_MICROSOFT) && !defined(_LIBCPP_NO_VCRUNTIME) +# define _LIBCPP_DEFER_NEW_TO_VCRUNTIME +#endif + +// If we are getting operator new from the MSVC CRT, then allocation overloads +// for align_val_t were added in 19.12, aka VS 2017 version 15.3. +#if defined(_LIBCPP_MSVCRT) && defined(_MSC_VER) && _MSC_VER < 1912 +# define _LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION +#elif defined(_LIBCPP_DEFER_NEW_TO_VCRUNTIME) && !defined(__cpp_aligned_new) + // We're defering to Microsoft's STL to provide aligned new et al. We don't + // have it unless the language feature test macro is defined. +# define _LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION +#endif + +#if defined(__APPLE__) +# if !defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && \ + defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) +# define __MAC_OS_X_VERSION_MIN_REQUIRED __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ +# endif +#endif // defined(__APPLE__) + +#if !defined(_LIBCPP_HAS_NO_ALIGNED_ALLOCATION) && \ + (defined(_LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION) || \ + (!defined(__cpp_aligned_new) || __cpp_aligned_new < 201606)) +# define _LIBCPP_HAS_NO_ALIGNED_ALLOCATION +#endif + +#if defined(__APPLE__) || defined(__FreeBSD__) +#define _LIBCPP_HAS_DEFAULTRUNELOCALE +#endif + +#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__sun__) +#define _LIBCPP_WCTYPE_IS_MASK +#endif + +#if _LIBCPP_STD_VER <= 17 || !defined(__cpp_char8_t) +#define _LIBCPP_NO_HAS_CHAR8_T +#endif + +// Deprecation macros. +// Deprecations warnings are only enabled when _LIBCPP_ENABLE_DEPRECATION_WARNINGS is defined. +#if defined(_LIBCPP_ENABLE_DEPRECATION_WARNINGS) +# if __has_attribute(deprecated) +# define _LIBCPP_DEPRECATED __attribute__ ((deprecated)) +# elif _LIBCPP_STD_VER > 11 +# define _LIBCPP_DEPRECATED [[deprecated]] +# else +# define _LIBCPP_DEPRECATED +# endif +#else +# define _LIBCPP_DEPRECATED +#endif + +#if !defined(_LIBCPP_CXX03_LANG) +# define _LIBCPP_DEPRECATED_IN_CXX11 _LIBCPP_DEPRECATED +#else +# define _LIBCPP_DEPRECATED_IN_CXX11 +#endif + +#if _LIBCPP_STD_VER >= 14 +# define _LIBCPP_DEPRECATED_IN_CXX14 _LIBCPP_DEPRECATED +#else +# define _LIBCPP_DEPRECATED_IN_CXX14 +#endif + +#if _LIBCPP_STD_VER >= 17 +# define _LIBCPP_DEPRECATED_IN_CXX17 _LIBCPP_DEPRECATED +#else +# define _LIBCPP_DEPRECATED_IN_CXX17 +#endif + +#if _LIBCPP_STD_VER <= 11 +# define _LIBCPP_EXPLICIT_AFTER_CXX11 +#else +# define _LIBCPP_EXPLICIT_AFTER_CXX11 explicit +#endif + +#if _LIBCPP_STD_VER > 11 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR) +# define _LIBCPP_CONSTEXPR_AFTER_CXX11 constexpr +#else +# define _LIBCPP_CONSTEXPR_AFTER_CXX11 +#endif + +#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR) +# define _LIBCPP_CONSTEXPR_AFTER_CXX14 constexpr +#else +# define _LIBCPP_CONSTEXPR_AFTER_CXX14 +#endif + +#if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR) +# define _LIBCPP_CONSTEXPR_AFTER_CXX17 constexpr +#else +# define _LIBCPP_CONSTEXPR_AFTER_CXX17 +#endif + +// The _LIBCPP_NODISCARD_ATTRIBUTE should only be used to define other +// NODISCARD macros to the correct attribute. +#if __has_cpp_attribute(nodiscard) || defined(_LIBCPP_COMPILER_MSVC) +# define _LIBCPP_NODISCARD_ATTRIBUTE [[nodiscard]] +#elif defined(_LIBCPP_COMPILER_CLANG) && !defined(_LIBCPP_CXX03_LANG) +# define _LIBCPP_NODISCARD_ATTRIBUTE [[clang::warn_unused_result]] +#else +// We can't use GCC's [[gnu::warn_unused_result]] and +// __attribute__((warn_unused_result)), because GCC does not silence them via +// (void) cast. +# define _LIBCPP_NODISCARD_ATTRIBUTE +#endif + +// _LIBCPP_NODISCARD_EXT may be used to apply [[nodiscard]] to entities not +// specified as such as an extension. +#if defined(_LIBCPP_ENABLE_NODISCARD) && !defined(_LIBCPP_DISABLE_NODISCARD_EXT) +# define _LIBCPP_NODISCARD_EXT _LIBCPP_NODISCARD_ATTRIBUTE +#else +# define _LIBCPP_NODISCARD_EXT +#endif + +#if !defined(_LIBCPP_DISABLE_NODISCARD_AFTER_CXX17) && \ + (_LIBCPP_STD_VER > 17 || defined(_LIBCPP_ENABLE_NODISCARD)) +# define _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_NODISCARD_ATTRIBUTE +#else +# define _LIBCPP_NODISCARD_AFTER_CXX17 +#endif + +#if _LIBCPP_STD_VER > 14 && defined(__cpp_inline_variables) && (__cpp_inline_variables >= 201606L) +# define _LIBCPP_INLINE_VAR inline +#else +# define _LIBCPP_INLINE_VAR +#endif + +#ifdef _LIBCPP_HAS_NO_RVALUE_REFERENCES +# define _LIBCPP_EXPLICIT_MOVE(x) _VSTD::move(x) +#else +# define _LIBCPP_EXPLICIT_MOVE(x) (x) +#endif + +#ifndef _LIBCPP_CONSTEXPR_IF_NODEBUG +#if defined(_LIBCPP_DEBUG) || defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR) +#define _LIBCPP_CONSTEXPR_IF_NODEBUG +#else +#define _LIBCPP_CONSTEXPR_IF_NODEBUG constexpr +#endif +#endif + +#ifndef _LIBCPP_HAS_NO_ASAN +_LIBCPP_FUNC_VIS extern "C" void __sanitizer_annotate_contiguous_container( + const void *, const void *, const void *, const void *); +#endif + +// Try to find out if RTTI is disabled. +// g++ and cl.exe have RTTI on by default and define a macro when it is. +// g++ only defines the macro in 4.3.2 and onwards. +#if !defined(_LIBCPP_NO_RTTI) +# if defined(__GNUC__) && \ + ((__GNUC__ >= 5) || \ + (__GNUC__ == 4 && (__GNUC_MINOR__ >= 3 || __GNUC_PATCHLEVEL__ >= 2))) && \ + !defined(__GXX_RTTI) +# define _LIBCPP_NO_RTTI +# elif defined(_LIBCPP_COMPILER_MSVC) && !defined(_CPPRTTI) +# define _LIBCPP_NO_RTTI +# endif +#endif + +#ifndef _LIBCPP_WEAK +#define _LIBCPP_WEAK __attribute__((__weak__)) +#endif + +// Thread API +#if !defined(_LIBCPP_HAS_NO_THREADS) && \ + !defined(_LIBCPP_HAS_THREAD_API_PTHREAD) && \ + !defined(_LIBCPP_HAS_THREAD_API_WIN32) && \ + !defined(_LIBCPP_HAS_THREAD_API_EXTERNAL) +# if defined(__FreeBSD__) || \ + defined(__Fuchsia__) || \ + defined(__NetBSD__) || \ + defined(__linux__) || \ + defined(__GNU__) || \ + defined(__APPLE__) || \ + defined(__CloudABI__) || \ + defined(__sun__) || \ + (defined(__MINGW32__) && __has_include(<pthread.h>)) +# define _LIBCPP_HAS_THREAD_API_PTHREAD +# elif defined(_LIBCPP_WIN32API) +# define _LIBCPP_HAS_THREAD_API_WIN32 +# else +# error "No thread API" +# endif // _LIBCPP_HAS_THREAD_API +#endif // _LIBCPP_HAS_NO_THREADS + +#if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_PTHREAD) +#error _LIBCPP_HAS_THREAD_API_PTHREAD may only be defined when \ + _LIBCPP_HAS_NO_THREADS is not defined. +#endif + +#if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_EXTERNAL) +#error _LIBCPP_HAS_THREAD_API_EXTERNAL may not be defined when \ + _LIBCPP_HAS_NO_THREADS is defined. +#endif + +#if defined(_LIBCPP_HAS_NO_MONOTONIC_CLOCK) && !defined(_LIBCPP_HAS_NO_THREADS) +#error _LIBCPP_HAS_NO_MONOTONIC_CLOCK may only be defined when \ + _LIBCPP_HAS_NO_THREADS is defined. +#endif + +// Systems that use capability-based security (FreeBSD with Capsicum, +// Nuxi CloudABI) may only provide local filesystem access (using *at()). +// Functions like open(), rename(), unlink() and stat() should not be +// used, as they attempt to access the global filesystem namespace. +#ifdef __CloudABI__ +#define _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE +#endif + +// CloudABI is intended for running networked services. Processes do not +// have standard input and output channels. +#ifdef __CloudABI__ +#define _LIBCPP_HAS_NO_STDIN +#define _LIBCPP_HAS_NO_STDOUT +#endif + +#if defined(__BIONIC__) || defined(__CloudABI__) || \ + defined(__Fuchsia__) || defined(_LIBCPP_HAS_MUSL_LIBC) +#define _LIBCPP_PROVIDES_DEFAULT_RUNE_TABLE +#endif + +// Thread-unsafe functions such as strtok() and localtime() +// are not available. +#ifdef __CloudABI__ +#define _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS +#endif + +#if __has_feature(cxx_atomic) || __has_extension(c_atomic) || __has_keyword(_Atomic) +# define _LIBCPP_HAS_C_ATOMIC_IMP +#elif _GNUC_VER > 407 +# define _LIBCPP_HAS_GCC_ATOMIC_IMP +#endif + +#if (!defined(_LIBCPP_HAS_C_ATOMIC_IMP) && !defined(_LIBCPP_HAS_GCC_ATOMIC_IMP)) \ + || defined(_LIBCPP_HAS_NO_THREADS) +#define _LIBCPP_HAS_NO_ATOMIC_HEADER +#endif + +#ifndef _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK +#define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK +#endif + +#if defined(_LIBCPP_ENABLE_THREAD_SAFETY_ANNOTATIONS) +# if defined(__clang__) && __has_attribute(acquire_capability) +// Work around the attribute handling in clang. When both __declspec and +// __attribute__ are present, the processing goes awry preventing the definition +// of the types. +# if !defined(_LIBCPP_OBJECT_FORMAT_COFF) +# define _LIBCPP_HAS_THREAD_SAFETY_ANNOTATIONS +# endif +# endif +#endif + +#if __has_attribute(require_constant_initialization) +# define _LIBCPP_SAFE_STATIC __attribute__((__require_constant_initialization__)) +#else +# define _LIBCPP_SAFE_STATIC +#endif + +#if !__has_builtin(__builtin_addressof) && _GNUC_VER < 700 +#define _LIBCPP_HAS_NO_BUILTIN_ADDRESSOF +#endif + +#if !defined(_LIBCPP_HAS_NO_OFF_T_FUNCTIONS) +# if defined(_LIBCPP_MSVCRT) || defined(_NEWLIB_VERSION) +# define _LIBCPP_HAS_NO_OFF_T_FUNCTIONS +# endif +#endif + +#if __has_attribute(diagnose_if) && !defined(_LIBCPP_DISABLE_ADDITIONAL_DIAGNOSTICS) +# define _LIBCPP_DIAGNOSE_WARNING(...) \ + __attribute__((diagnose_if(__VA_ARGS__, "warning"))) +# define _LIBCPP_DIAGNOSE_ERROR(...) \ + __attribute__((diagnose_if(__VA_ARGS__, "error"))) +#else +# define _LIBCPP_DIAGNOSE_WARNING(...) +# define _LIBCPP_DIAGNOSE_ERROR(...) +#endif + +// Use a function like macro to imply that it must be followed by a semicolon +#if __cplusplus > 201402L && __has_cpp_attribute(fallthrough) +# define _LIBCPP_FALLTHROUGH() [[fallthrough]] +#elif __has_cpp_attribute(clang::fallthrough) +# define _LIBCPP_FALLTHROUGH() [[clang::fallthrough]] +#elif __has_attribute(fallthough) || _GNUC_VER >= 700 +# define _LIBCPP_FALLTHROUGH() __attribute__((__fallthrough__)) +#else +# define _LIBCPP_FALLTHROUGH() ((void)0) +#endif + +#if defined(_LIBCPP_ABI_MICROSOFT) && \ + (defined(_LIBCPP_COMPILER_MSVC) || __has_declspec_attribute(empty_bases)) +# define _LIBCPP_DECLSPEC_EMPTY_BASES __declspec(empty_bases) +#else +# define _LIBCPP_DECLSPEC_EMPTY_BASES +#endif + +#if defined(_LIBCPP_ENABLE_CXX17_REMOVED_FEATURES) +#define _LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR +#define _LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS +#define _LIBCPP_ENABLE_CXX17_REMOVED_RANDOM_SHUFFLE +#define _LIBCPP_ENABLE_CXX17_REMOVED_BINDERS +#endif // _LIBCPP_ENABLE_CXX17_REMOVED_FEATURES + +#if !defined(__cpp_deduction_guides) || __cpp_deduction_guides < 201611 +#define _LIBCPP_HAS_NO_DEDUCTION_GUIDES +#endif + +#if !__has_keyword(__is_aggregate) && (_GNUC_VER_NEW < 7001) +#define _LIBCPP_HAS_NO_IS_AGGREGATE +#endif + +#if !defined(__cpp_coroutines) || __cpp_coroutines < 201703L +#define _LIBCPP_HAS_NO_COROUTINES +#endif + +// FIXME: Correct this macro when either (A) a feature test macro for the +// spaceship operator is provided, or (B) a compiler provides a complete +// implementation. +#define _LIBCPP_HAS_NO_SPACESHIP_OPERATOR + +// Decide whether to use availability macros. +#if !defined(_LIBCPP_BUILDING_LIBRARY) && \ + !defined(_LIBCPP_DISABLE_AVAILABILITY) && \ + __has_feature(attribute_availability_with_strict) && \ + __has_feature(attribute_availability_in_templates) +# ifdef __APPLE__ +# define _LIBCPP_USE_AVAILABILITY_APPLE +# endif +#endif + +// Define availability macros. +#if defined(_LIBCPP_USE_AVAILABILITY_APPLE) +# define _LIBCPP_AVAILABILITY_SHARED_MUTEX \ + __attribute__((availability(macosx,strict,introduced=10.12))) \ + __attribute__((availability(ios,strict,introduced=10.0))) \ + __attribute__((availability(tvos,strict,introduced=10.0))) \ + __attribute__((availability(watchos,strict,introduced=3.0))) +# define _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS \ + __attribute__((availability(macosx,strict,introduced=10.14))) \ + __attribute__((availability(ios,strict,introduced=12.0))) \ + __attribute__((availability(tvos,strict,introduced=12.0))) \ + __attribute__((availability(watchos,strict,introduced=5.0))) +# define _LIBCPP_AVAILABILITY_BAD_VARIANT_ACCESS \ + _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS +# define _LIBCPP_AVAILABILITY_BAD_ANY_CAST \ + _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS +# define _LIBCPP_AVAILABILITY_UNCAUGHT_EXCEPTIONS \ + __attribute__((availability(macosx,strict,introduced=10.12))) \ + __attribute__((availability(ios,strict,introduced=10.0))) \ + __attribute__((availability(tvos,strict,introduced=10.0))) \ + __attribute__((availability(watchos,strict,introduced=3.0))) +# define _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE \ + __attribute__((availability(macosx,strict,introduced=10.12))) \ + __attribute__((availability(ios,strict,introduced=10.0))) \ + __attribute__((availability(tvos,strict,introduced=10.0))) \ + __attribute__((availability(watchos,strict,introduced=3.0))) +# define _LIBCPP_AVAILABILITY_FUTURE_ERROR \ + __attribute__((availability(ios,strict,introduced=6.0))) +# define _LIBCPP_AVAILABILITY_TYPEINFO_VTABLE \ + __attribute__((availability(macosx,strict,introduced=10.9))) \ + __attribute__((availability(ios,strict,introduced=7.0))) +# define _LIBCPP_AVAILABILITY_LOCALE_CATEGORY \ + __attribute__((availability(macosx,strict,introduced=10.9))) \ + __attribute__((availability(ios,strict,introduced=7.0))) +# define _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR \ + __attribute__((availability(macosx,strict,introduced=10.9))) \ + __attribute__((availability(ios,strict,introduced=7.0))) +#else +# define _LIBCPP_AVAILABILITY_SHARED_MUTEX +# define _LIBCPP_AVAILABILITY_BAD_VARIANT_ACCESS +# define _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS +# define _LIBCPP_AVAILABILITY_BAD_ANY_CAST +# define _LIBCPP_AVAILABILITY_UNCAUGHT_EXCEPTIONS +# define _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE +# define _LIBCPP_AVAILABILITY_FUTURE_ERROR +# define _LIBCPP_AVAILABILITY_TYPEINFO_VTABLE +# define _LIBCPP_AVAILABILITY_LOCALE_CATEGORY +# define _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR +#endif + +// Define availability that depends on _LIBCPP_NO_EXCEPTIONS. +#ifdef _LIBCPP_NO_EXCEPTIONS +# define _LIBCPP_AVAILABILITY_FUTURE +# define _LIBCPP_AVAILABILITY_THROW_BAD_ANY_CAST +# define _LIBCPP_AVAILABILITY_THROW_BAD_OPTIONAL_ACCESS +# define _LIBCPP_AVAILABILITY_THROW_BAD_VARIANT_ACCESS +#else +# define _LIBCPP_AVAILABILITY_FUTURE _LIBCPP_AVAILABILITY_FUTURE_ERROR +# define _LIBCPP_AVAILABILITY_THROW_BAD_ANY_CAST _LIBCPP_AVAILABILITY_BAD_ANY_CAST +# define _LIBCPP_AVAILABILITY_THROW_BAD_OPTIONAL_ACCESS _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS +# define _LIBCPP_AVAILABILITY_THROW_BAD_VARIANT_ACCESS _LIBCPP_AVAILABILITY_BAD_VARIANT_ACCESS +#endif + +// The stream API was dropped and re-added in the dylib shipped on macOS +// and iOS. We can only assume the dylib to provide these definitions for +// macosx >= 10.9 and ios >= 7.0. Otherwise, the definitions are available +// from the headers, but not from the dylib. Explicit instantiation +// declarations for streams exist conditionally to this; if we provide +// an explicit instantiation declaration and we try to deploy to a dylib +// that does not provide those symbols, we'll get a load-time error. +#if !defined(_LIBCPP_BUILDING_LIBRARY) && \ + ((defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && \ + __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 1090) || \ + (defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) && \ + __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ < 70000)) +# define _LIBCPP_DO_NOT_ASSUME_STREAMS_EXPLICIT_INSTANTIATION_IN_DYLIB +#endif + +#if defined(_LIBCPP_COMPILER_IBM) +#define _LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO +#endif + +#if defined(_LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO) +# define _LIBCPP_PUSH_MACROS +# define _LIBCPP_POP_MACROS +#else + // Don't warn about macro conflicts when we can restore them at the + // end of the header. +# ifndef _LIBCPP_DISABLE_MACRO_CONFLICT_WARNINGS +# define _LIBCPP_DISABLE_MACRO_CONFLICT_WARNINGS +# endif +# if defined(_LIBCPP_COMPILER_MSVC) +# define _LIBCPP_PUSH_MACROS \ + __pragma(push_macro("min")) \ + __pragma(push_macro("max")) +# define _LIBCPP_POP_MACROS \ + __pragma(pop_macro("min")) \ + __pragma(pop_macro("max")) +# else +# define _LIBCPP_PUSH_MACROS \ + _Pragma("push_macro(\"min\")") \ + _Pragma("push_macro(\"max\")") +# define _LIBCPP_POP_MACROS \ + _Pragma("pop_macro(\"min\")") \ + _Pragma("pop_macro(\"max\")") +# endif +#endif // defined(_LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO) + +#ifndef _LIBCPP_NO_AUTO_LINK +# if defined(_LIBCPP_ABI_MICROSOFT) && !defined(_LIBCPP_BUILDING_LIBRARY) +# if defined(_DLL) +# pragma comment(lib, "c++.lib") +# else +# pragma comment(lib, "libc++.lib") +# endif +# endif // defined(_LIBCPP_ABI_MICROSOFT) && !defined(_LIBCPP_BUILDING_LIBRARY) +#endif // _LIBCPP_NO_AUTO_LINK + +#define _LIBCPP_UNUSED_VAR(x) ((void)(x)) + +#endif // __cplusplus + +#endif // _LIBCPP_CONFIG |