// -*- C++ -*- //===----------------------------------------------------------------------===// // // 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 #include <__config_site> #ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER # pragma GCC system_header #endif #ifdef __cplusplus # include <__configuration/abi.h> # include <__configuration/attributes.h> # include <__configuration/availability.h> # include <__configuration/compiler.h> # include <__configuration/experimental.h> # include <__configuration/hardening.h> # include <__configuration/language.h> # include <__configuration/platform.h> // The attributes supported by clang are documented at https://clang.llvm.org/docs/AttributeReference.html // _LIBCPP_VERSION represents the version of libc++, which matches the version of LLVM. // Given a LLVM release LLVM XX.YY.ZZ (e.g. LLVM 17.0.1 == 17.00.01), _LIBCPP_VERSION is // defined to XXYYZZ. # define _LIBCPP_VERSION 230000 # define _LIBCPP_CONCAT_IMPL(_X, _Y) _X##_Y # define _LIBCPP_CONCAT(_X, _Y) _LIBCPP_CONCAT_IMPL(_X, _Y) # define _LIBCPP_CONCAT3(X, Y, Z) _LIBCPP_CONCAT(X, _LIBCPP_CONCAT(Y, Z)) # define _LIBCPP_TOSTRING2(x) #x # define _LIBCPP_TOSTRING(x) _LIBCPP_TOSTRING2(x) # ifndef __has_constexpr_builtin # define __has_constexpr_builtin(x) 0 # endif // This checks wheter a Clang module is built # ifndef __building_module # define __building_module(...) 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 # define __has_keyword(__x) !(__is_identifier(__x)) # ifndef __has_warning # define __has_warning(...) 0 # endif # if !defined(_LIBCPP_COMPILER_CLANG_BASED) && __cplusplus < 201103L # error "libc++ only supports C++03 with Clang-based compilers. Please enable C++11" # endif # if defined(_LIBCPP_ABI_MICROSOFT) && !defined(_LIBCPP_NO_VCRUNTIME) # define _LIBCPP_ABI_VCRUNTIME # endif # if defined(__MVS__) # include // for __NATIVE_ASCII_F # endif # if defined(_WIN32) # define _LIBCPP_WIN32API # define _LIBCPP_SHORT_WCHAR 1 // Both MinGW and native MSVC provide a "MSVC"-like environment # 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 1 # else # define _LIBCPP_HAS_BITSCAN64 0 # endif # define _LIBCPP_HAS_OPEN_WITH_WCHAR 1 # else # define _LIBCPP_HAS_OPEN_WITH_WCHAR 0 # define _LIBCPP_HAS_BITSCAN64 0 # endif // defined(_WIN32) # if defined(_AIX) && !defined(__64BIT__) // The size of wchar is 2 byte on 32-bit mode on AIX. # define _LIBCPP_SHORT_WCHAR 1 # endif // Libc++ supports various implementations of std::random_device. // // _LIBCPP_USING_DEV_RANDOM // Read entropy from the given file, by default `/dev/urandom`. // If a token is provided, it is assumed to be the path to a file // to read entropy from. This is the default behavior if nothing // else is specified. This implementation requires storing state // inside `std::random_device`. // // _LIBCPP_USING_ARC4_RANDOM // Use arc4random(). This allows obtaining random data even when // using sandboxing mechanisms. On some platforms like Apple, this // is the recommended source of entropy for user-space programs. // When this option is used, the token passed to `std::random_device`'s // constructor *must* be "/dev/urandom" -- anything else is an error. // // _LIBCPP_USING_GETENTROPY // Use getentropy(). // When this option is used, the token passed to `std::random_device`'s // constructor *must* be "/dev/urandom" -- anything else is an error. // // _LIBCPP_USING_FUCHSIA_CPRNG // Use Fuchsia's zx_cprng_draw() system call, which is specified to // deliver high-quality entropy and cannot fail. // When this option is used, the token passed to `std::random_device`'s // constructor *must* be "/dev/urandom" -- anything else is an error. // // _LIBCPP_USING_WIN32_RANDOM // Use rand_s(), for use on Windows. // When this option is used, the token passed to `std::random_device`'s // constructor *must* be "/dev/urandom" -- anything else is an error. # if defined(__APPLE__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || \ defined(__DragonFly__) # define _LIBCPP_USING_ARC4_RANDOM # elif defined(__wasi__) || defined(__EMSCRIPTEN__) # define _LIBCPP_USING_GETENTROPY # elif defined(__Fuchsia__) # define _LIBCPP_USING_FUCHSIA_CPRNG # elif defined(_LIBCPP_WIN32API) # define _LIBCPP_USING_WIN32_RANDOM # else # define _LIBCPP_USING_DEV_RANDOM # endif # ifndef _LIBCPP_CXX03_LANG # define _LIBCPP_ALIGNOF(...) alignof(__VA_ARGS__) # define _ALIGNAS_TYPE(x) alignas(x) # define _ALIGNAS(x) alignas(x) # define _NOEXCEPT noexcept # define _NOEXCEPT_(...) noexcept(__VA_ARGS__) # define _LIBCPP_CONSTEXPR constexpr # else # define _LIBCPP_ALIGNOF(...) _Alignof(__VA_ARGS__) # define _ALIGNAS_TYPE(x) __attribute__((__aligned__(_LIBCPP_ALIGNOF(x)))) # define _ALIGNAS(x) __attribute__((__aligned__(x))) # define nullptr __nullptr # define _NOEXCEPT throw() # define _NOEXCEPT_(...) # define static_assert(...) _Static_assert(__VA_ARGS__) # define decltype(...) __decltype(__VA_ARGS__) # define _LIBCPP_CONSTEXPR typedef __char16_t char16_t; typedef __char32_t char32_t; # endif # define _LIBCPP_PREFERRED_ALIGNOF(_Tp) __alignof(_Tp) # if __has_extension(blocks) && defined(__APPLE__) # define _LIBCPP_HAS_BLOCKS_RUNTIME 1 # else # define _LIBCPP_HAS_BLOCKS_RUNTIME 0 # endif # ifdef _LIBCPP_COMPILER_CLANG_BASED # define _LIBCPP_DIAGNOSTIC_PUSH _Pragma("clang diagnostic push") # define _LIBCPP_DIAGNOSTIC_POP _Pragma("clang diagnostic pop") # define _LIBCPP_CLANG_DIAGNOSTIC_IGNORED(str) _Pragma(_LIBCPP_TOSTRING(clang diagnostic ignored str)) # define _LIBCPP_GCC_DIAGNOSTIC_IGNORED(str) # elif defined(_LIBCPP_COMPILER_GCC) # define _LIBCPP_DIAGNOSTIC_PUSH _Pragma("GCC diagnostic push") # define _LIBCPP_DIAGNOSTIC_POP _Pragma("GCC diagnostic pop") # define _LIBCPP_CLANG_DIAGNOSTIC_IGNORED(str) # define _LIBCPP_GCC_DIAGNOSTIC_IGNORED(str) _Pragma(_LIBCPP_TOSTRING(GCC diagnostic ignored str)) # else # define _LIBCPP_DIAGNOSTIC_PUSH # define _LIBCPP_DIAGNOSTIC_POP # define _LIBCPP_CLANG_DIAGNOSTIC_IGNORED(str) # define _LIBCPP_GCC_DIAGNOSTIC_IGNORED(str) # endif // Macros to enter and leave a state where deprecation warnings are suppressed. # define _LIBCPP_SUPPRESS_DEPRECATED_PUSH \ _LIBCPP_DIAGNOSTIC_PUSH _LIBCPP_CLANG_DIAGNOSTIC_IGNORED("-Wdeprecated") \ _LIBCPP_GCC_DIAGNOSTIC_IGNORED("-Wdeprecated-declarations") # define _LIBCPP_SUPPRESS_DEPRECATED_POP _LIBCPP_DIAGNOSTIC_POP // Clang modules take a significant compile time hit when pushing and popping diagnostics. // Since all the headers are marked as system headers unless _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER is defined, we can // simply disable this pushing and popping when _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER isn't defined. # ifdef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER # define _LIBCPP_PUSH_EXTENSION_DIAGNOSTICS \ _LIBCPP_DIAGNOSTIC_PUSH \ _LIBCPP_CLANG_DIAGNOSTIC_IGNORED("-Wc++11-extensions") \ _LIBCPP_CLANG_DIAGNOSTIC_IGNORED("-Wc++14-extensions") \ _LIBCPP_CLANG_DIAGNOSTIC_IGNORED("-Wc++17-extensions") \ _LIBCPP_CLANG_DIAGNOSTIC_IGNORED("-Wc++20-extensions") \ _LIBCPP_CLANG_DIAGNOSTIC_IGNORED("-Wc++23-extensions") \ _LIBCPP_GCC_DIAGNOSTIC_IGNORED("-Wc++14-extensions") \ _LIBCPP_GCC_DIAGNOSTIC_IGNORED("-Wc++17-extensions") \ _LIBCPP_GCC_DIAGNOSTIC_IGNORED("-Wc++20-extensions") \ _LIBCPP_GCC_DIAGNOSTIC_IGNORED("-Wc++23-extensions") # define _LIBCPP_POP_EXTENSION_DIAGNOSTICS _LIBCPP_DIAGNOSTIC_POP # else # define _LIBCPP_PUSH_EXTENSION_DIAGNOSTICS # define _LIBCPP_POP_EXTENSION_DIAGNOSTICS # endif // clang-format off // The unversioned namespace is used when we want to be ABI compatible with other standard libraries in some way. There // are two main categories where that's the case: // - Historically, we have made exception types ABI compatible with libstdc++ to allow throwing them between libstdc++ // and libc++. This is not used anymore for new exception types, since there is no use-case for it anymore. // - Types and functions which are used by the compiler are in the unversioned namespace, since the compiler has to know // their mangling without the appropriate declaration in some cases. // If it's not clear whether using the unversioned namespace is the correct thing to do, it's not. The versioned // namespace (_LIBCPP_BEGIN_NAMESPACE_STD) should almost always be used. # define _LIBCPP_BEGIN_UNVERSIONED_NAMESPACE_STD \ _LIBCPP_PUSH_EXTENSION_DIAGNOSTICS namespace _LIBCPP_NAMESPACE_VISIBILITY std { # define _LIBCPP_END_UNVERSIONED_NAMESPACE_STD } _LIBCPP_POP_EXTENSION_DIAGNOSTICS # define _LIBCPP_BEGIN_NAMESPACE_STD _LIBCPP_BEGIN_UNVERSIONED_NAMESPACE_STD inline namespace _LIBCPP_ABI_NAMESPACE { # define _LIBCPP_END_NAMESPACE_STD } _LIBCPP_END_UNVERSIONED_NAMESPACE_STD // TODO: This should really be in the versioned namespace #define _LIBCPP_BEGIN_NAMESPACE_EXPERIMENTAL _LIBCPP_BEGIN_UNVERSIONED_NAMESPACE_STD namespace experimental { #define _LIBCPP_END_NAMESPACE_EXPERIMENTAL } _LIBCPP_END_UNVERSIONED_NAMESPACE_STD #define _LIBCPP_BEGIN_NAMESPACE_LFTS _LIBCPP_BEGIN_NAMESPACE_EXPERIMENTAL inline namespace fundamentals_v1 { #define _LIBCPP_END_NAMESPACE_LFTS } _LIBCPP_END_NAMESPACE_EXPERIMENTAL #define _LIBCPP_BEGIN_NAMESPACE_LFTS_V2 _LIBCPP_BEGIN_NAMESPACE_EXPERIMENTAL inline namespace fundamentals_v2 { #define _LIBCPP_END_NAMESPACE_LFTS_V2 } _LIBCPP_END_NAMESPACE_EXPERIMENTAL #ifdef _LIBCPP_ABI_NO_FILESYSTEM_INLINE_NAMESPACE # define _LIBCPP_BEGIN_NAMESPACE_FILESYSTEM _LIBCPP_BEGIN_NAMESPACE_STD namespace filesystem { # define _LIBCPP_END_NAMESPACE_FILESYSTEM } _LIBCPP_END_NAMESPACE_STD #else # define _LIBCPP_BEGIN_NAMESPACE_FILESYSTEM _LIBCPP_BEGIN_NAMESPACE_STD \ inline namespace __fs { namespace filesystem { # define _LIBCPP_END_NAMESPACE_FILESYSTEM }} _LIBCPP_END_NAMESPACE_STD #endif // clang-format on # if !defined(__SIZEOF_INT128__) || defined(_MSC_VER) # define _LIBCPP_HAS_INT128 0 # else # define _LIBCPP_HAS_INT128 1 # endif # ifdef _LIBCPP_CXX03_LANG # define _LIBCPP_DECLARE_STRONG_ENUM(x) \ struct _LIBCPP_EXPORTED_FROM_ABI x { \ enum __lx // clang-format off # define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) \ __lx __v_; \ _LIBCPP_HIDE_FROM_ABI x(__lx __v) : __v_(__v) {} \ _LIBCPP_HIDE_FROM_ABI explicit x(int __v) : __v_(static_cast<__lx>(__v)) {} \ _LIBCPP_HIDE_FROM_ABI operator int() const { return __v_; } \ }; // clang-format on # else // _LIBCPP_CXX03_LANG # define _LIBCPP_DECLARE_STRONG_ENUM(x) enum class x # define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) # endif // _LIBCPP_CXX03_LANG # ifdef __FreeBSD__ # define _DECLARE_C99_LDBL_MATH 1 # 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_LIBRARY_ALIGNED_ALLOCATION 0 # elif defined(_LIBCPP_ABI_VCRUNTIME) && !defined(__cpp_aligned_new) // We're deferring 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_LIBRARY_ALIGNED_ALLOCATION 0 # elif defined(__MVS__) # define _LIBCPP_HAS_LIBRARY_ALIGNED_ALLOCATION 0 # else # define _LIBCPP_HAS_LIBRARY_ALIGNED_ALLOCATION 1 # endif # if !_LIBCPP_HAS_LIBRARY_ALIGNED_ALLOCATION || (!defined(__cpp_aligned_new) || __cpp_aligned_new < 201606) # define _LIBCPP_HAS_ALIGNED_ALLOCATION 0 # else # define _LIBCPP_HAS_ALIGNED_ALLOCATION 1 # endif # if defined(__APPLE__) || defined(__FreeBSD__) # define _LIBCPP_WCTYPE_IS_MASK # endif // FIXME: using `#warning` causes diagnostics from system headers which include deprecated headers. This can only be // enabled again once https://github.com/llvm/llvm-project/pull/168041 (or a similar feature) has landed, since that // allows suppression in system headers. # if defined(__DEPRECATED) && __DEPRECATED && !defined(_LIBCPP_DISABLE_DEPRECATION_WARNINGS) && 0 # define _LIBCPP_DIAGNOSE_DEPRECATED_HEADERS 1 # else # define _LIBCPP_DIAGNOSE_DEPRECATED_HEADERS 0 # endif # if _LIBCPP_STD_VER <= 11 # define _LIBCPP_EXPLICIT_SINCE_CXX14 # else # define _LIBCPP_EXPLICIT_SINCE_CXX14 explicit # endif # if _LIBCPP_STD_VER >= 23 # define _LIBCPP_EXPLICIT_SINCE_CXX23 explicit # else # define _LIBCPP_EXPLICIT_SINCE_CXX23 # endif # if _LIBCPP_STD_VER >= 14 # define _LIBCPP_CONSTEXPR_SINCE_CXX14 constexpr # else # define _LIBCPP_CONSTEXPR_SINCE_CXX14 # endif # if _LIBCPP_STD_VER >= 17 # define _LIBCPP_CONSTEXPR_SINCE_CXX17 constexpr # else # define _LIBCPP_CONSTEXPR_SINCE_CXX17 # endif # if _LIBCPP_STD_VER >= 20 # define _LIBCPP_CONSTEXPR_SINCE_CXX20 constexpr # else # define _LIBCPP_CONSTEXPR_SINCE_CXX20 # endif # if _LIBCPP_STD_VER >= 23 # define _LIBCPP_CONSTEXPR_SINCE_CXX23 constexpr # else # define _LIBCPP_CONSTEXPR_SINCE_CXX23 # endif # if _LIBCPP_STD_VER >= 26 # define _LIBCPP_CONSTEXPR_SINCE_CXX26 constexpr # else # define _LIBCPP_CONSTEXPR_SINCE_CXX26 # endif // Thread API // clang-format off # if _LIBCPP_HAS_THREADS && \ !_LIBCPP_HAS_THREAD_API_PTHREAD && \ !_LIBCPP_HAS_THREAD_API_WIN32 && \ !_LIBCPP_HAS_THREAD_API_EXTERNAL # if defined(__FreeBSD__) || \ defined(__wasi__) || \ defined(__NetBSD__) || \ defined(__OpenBSD__) || \ defined(__NuttX__) || \ defined(__linux__) || \ defined(__GNU__) || \ defined(__APPLE__) || \ defined(__MVS__) || \ defined(_AIX) || \ defined(__EMSCRIPTEN__) // clang-format on # undef _LIBCPP_HAS_THREAD_API_PTHREAD # define _LIBCPP_HAS_THREAD_API_PTHREAD 1 # elif defined(__Fuchsia__) // TODO(44575): Switch to C11 thread API when possible. # undef _LIBCPP_HAS_THREAD_API_PTHREAD # define _LIBCPP_HAS_THREAD_API_PTHREAD 1 # elif defined(_LIBCPP_WIN32API) # undef _LIBCPP_HAS_THREAD_API_WIN32 # define _LIBCPP_HAS_THREAD_API_WIN32 1 # else # error "No thread API" # endif // _LIBCPP_HAS_THREAD_API # endif // _LIBCPP_HAS_THREADS # if !_LIBCPP_HAS_THREAD_API_PTHREAD # define _LIBCPP_HAS_COND_CLOCKWAIT 0 # elif (defined(__ANDROID__) && __ANDROID_API__ >= 30) || _LIBCPP_GLIBC_PREREQ(2, 30) # define _LIBCPP_HAS_COND_CLOCKWAIT 1 # else # define _LIBCPP_HAS_COND_CLOCKWAIT 0 # endif # if !_LIBCPP_HAS_THREADS && _LIBCPP_HAS_THREAD_API_PTHREAD # error _LIBCPP_HAS_THREAD_API_PTHREAD may only be true when _LIBCPP_HAS_THREADS is true. # endif # if !_LIBCPP_HAS_THREADS && _LIBCPP_HAS_THREAD_API_EXTERNAL # error _LIBCPP_HAS_THREAD_API_EXTERNAL may only be true when _LIBCPP_HAS_THREADS is true. # endif # if !_LIBCPP_HAS_MONOTONIC_CLOCK && _LIBCPP_HAS_THREADS # error _LIBCPP_HAS_MONOTONIC_CLOCK may only be false when _LIBCPP_HAS_THREADS is false. # endif # if _LIBCPP_HAS_THREADS && !defined(__STDCPP_THREADS__) # define __STDCPP_THREADS__ 1 # endif // The glibc and Bionic implementation of pthreads implements // pthread_mutex_destroy as nop for regular mutexes. Additionally, Win32 // mutexes have no destroy mechanism. // // This optimization can't be performed on Apple platforms, where // pthread_mutex_destroy can allow the kernel to release resources. // See https://llvm.org/D64298 for details. // // TODO(EricWF): Enable this optimization on Bionic after speaking to their // respective stakeholders. // clang-format off # if (_LIBCPP_HAS_THREAD_API_PTHREAD && defined(__GLIBC__)) || \ (_LIBCPP_HAS_THREAD_API_C11 && defined(__Fuchsia__)) || \ _LIBCPP_HAS_THREAD_API_WIN32 // clang-format on # define _LIBCPP_HAS_TRIVIAL_MUTEX_DESTRUCTION 1 # else # define _LIBCPP_HAS_TRIVIAL_MUTEX_DESTRUCTION 0 # endif // Destroying a condvar is a nop on Windows. // // This optimization can't be performed on Apple platforms, where // pthread_cond_destroy can allow the kernel to release resources. // See https://llvm.org/D64298 for details. // // TODO(EricWF): This is potentially true for some pthread implementations // as well. # if (_LIBCPP_HAS_THREAD_API_C11 && defined(__Fuchsia__)) || _LIBCPP_HAS_THREAD_API_WIN32 # define _LIBCPP_HAS_TRIVIAL_CONDVAR_DESTRUCTION 1 # else # define _LIBCPP_HAS_TRIVIAL_CONDVAR_DESTRUCTION 0 # endif # if defined(__BIONIC__) || defined(__NuttX__) || defined(__Fuchsia__) || defined(__wasi__) || \ _LIBCPP_HAS_MUSL_LIBC || defined(__OpenBSD__) || _LIBCPP_LIBC_LLVM_LIBC # define _LIBCPP_PROVIDES_DEFAULT_RUNE_TABLE # endif # if __has_feature(cxx_atomic) || __has_extension(c_atomic) || __has_keyword(_Atomic) # define _LIBCPP_HAS_C_ATOMIC_IMP 1 # define _LIBCPP_HAS_GCC_ATOMIC_IMP 0 # define _LIBCPP_HAS_EXTERNAL_ATOMIC_IMP 0 # elif defined(_LIBCPP_COMPILER_GCC) # define _LIBCPP_HAS_C_ATOMIC_IMP 0 # define _LIBCPP_HAS_GCC_ATOMIC_IMP 1 # define _LIBCPP_HAS_EXTERNAL_ATOMIC_IMP 0 # endif # if !_LIBCPP_HAS_C_ATOMIC_IMP && !_LIBCPP_HAS_GCC_ATOMIC_IMP && !_LIBCPP_HAS_EXTERNAL_ATOMIC_IMP # define _LIBCPP_HAS_ATOMIC_HEADER 0 # else # define _LIBCPP_HAS_ATOMIC_HEADER 1 # ifndef _LIBCPP_ATOMIC_FLAG_TYPE # define _LIBCPP_ATOMIC_FLAG_TYPE bool # endif # endif // We often repeat things just for handling wide characters in the library. // When wide characters are disabled, it can be useful to have a quick way of // disabling it without having to resort to #if-#endif, which has a larger // impact on readability. # if !_LIBCPP_HAS_WIDE_CHARACTERS # define _LIBCPP_IF_WIDE_CHARACTERS(...) # else # define _LIBCPP_IF_WIDE_CHARACTERS(...) __VA_ARGS__ # endif // clang-format off # define _LIBCPP_PUSH_MACROS _Pragma("push_macro(\"min\")") _Pragma("push_macro(\"max\")") _Pragma("push_macro(\"refresh\")") _Pragma("push_macro(\"move\")") _Pragma("push_macro(\"erase\")") # define _LIBCPP_POP_MACROS _Pragma("pop_macro(\"min\")") _Pragma("pop_macro(\"max\")") _Pragma("pop_macro(\"refresh\")") _Pragma("pop_macro(\"move\")") _Pragma("pop_macro(\"erase\")") // clang-format on # ifndef _LIBCPP_NO_AUTO_LINK # if defined(_LIBCPP_ABI_MICROSOFT) && !defined(_LIBCPP_BUILDING_LIBRARY) # if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) # 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 // Configures the fopen close-on-exec mode character, if any. This string will // be appended to any mode string used by fstream for fopen/fdopen. // // Not all platforms support this, but it helps avoid fd-leaks on platforms that // do. # if defined(__BIONIC__) # define _LIBCPP_FOPEN_CLOEXEC_MODE "e" # else # define _LIBCPP_FOPEN_CLOEXEC_MODE # endif // c8rtomb() and mbrtoc8() were added in C++20 and C23. Support for these // functions is gradually being added to existing C libraries. The conditions // below check for known C library versions and conditions under which these // functions are declared by the C library. // // GNU libc 2.36 and newer declare c8rtomb() and mbrtoc8() in C++ modes if // __cpp_char8_t is defined or if C2X extensions are enabled. Determining // the latter depends on internal GNU libc details that are not appropriate // to depend on here, so any declarations present when __cpp_char8_t is not // defined are ignored. # if _LIBCPP_GLIBC_PREREQ(2, 36) && defined(__cpp_char8_t) # define _LIBCPP_HAS_C8RTOMB_MBRTOC8 1 # else # define _LIBCPP_HAS_C8RTOMB_MBRTOC8 0 # endif // There are a handful of public standard library types that are intended to // support CTAD but don't need any explicit deduction guides to do so. This // macro is used to mark them as such, which suppresses the // '-Wctad-maybe-unsupported' compiler warning when CTAD is used in user code // with these classes. # if _LIBCPP_STD_VER >= 17 # ifdef _LIBCPP_COMPILER_CLANG_BASED # define _LIBCPP_CTAD_SUPPORTED_FOR_TYPE(_ClassName) \ template \ [[maybe_unused]] _ClassName(typename _Tag::__allow_ctad...)->_ClassName<_Tag...> # else # define _LIBCPP_CTAD_SUPPORTED_FOR_TYPE(ClassName) \ template \ ClassName(typename _Tag::__allow_ctad...)->ClassName<_Tag...> # endif # else # define _LIBCPP_CTAD_SUPPORTED_FOR_TYPE(_ClassName) static_assert(true, "") # endif # if defined(__OBJC__) && defined(_LIBCPP_APPLE_CLANG_VER) # define _LIBCPP_WORKAROUND_OBJCXX_COMPILER_INTRINSICS # endif # define _PSTL_PRAGMA(x) _Pragma(#x) // Enable SIMD for compilers that support OpenMP 4.0 # if (defined(_OPENMP) && _OPENMP >= 201307) # define _PSTL_UDR_PRESENT # define _PSTL_PRAGMA_SIMD _PSTL_PRAGMA(omp simd) # define _PSTL_PRAGMA_DECLARE_SIMD _PSTL_PRAGMA(omp declare simd) # define _PSTL_PRAGMA_SIMD_REDUCTION(PRM) _PSTL_PRAGMA(omp simd reduction(PRM)) # define _PSTL_PRAGMA_SIMD_SCAN(PRM) _PSTL_PRAGMA(omp simd reduction(inscan, PRM)) # define _PSTL_PRAGMA_SIMD_INCLUSIVE_SCAN(PRM) _PSTL_PRAGMA(omp scan inclusive(PRM)) # define _PSTL_PRAGMA_SIMD_EXCLUSIVE_SCAN(PRM) _PSTL_PRAGMA(omp scan exclusive(PRM)) // Declaration of reduction functor, where // NAME - the name of the functor // OP - type of the callable object with the reduction operation // omp_in - refers to the local partial result // omp_out - refers to the final value of the combiner operator // omp_priv - refers to the private copy of the initial value // omp_orig - refers to the original variable to be reduced # define _PSTL_PRAGMA_DECLARE_REDUCTION(NAME, OP) \ _PSTL_PRAGMA(omp declare reduction(NAME:OP : omp_out(omp_in)) initializer(omp_priv = omp_orig)) # elif defined(_LIBCPP_COMPILER_CLANG_BASED) # define _PSTL_PRAGMA_SIMD _Pragma("clang loop vectorize(enable) interleave(enable)") # define _PSTL_PRAGMA_DECLARE_SIMD # define _PSTL_PRAGMA_SIMD_REDUCTION(PRM) _Pragma("clang loop vectorize(enable) interleave(enable)") # define _PSTL_PRAGMA_SIMD_SCAN(PRM) _Pragma("clang loop vectorize(enable) interleave(enable)") # define _PSTL_PRAGMA_SIMD_INCLUSIVE_SCAN(PRM) # define _PSTL_PRAGMA_SIMD_EXCLUSIVE_SCAN(PRM) # define _PSTL_PRAGMA_DECLARE_REDUCTION(NAME, OP) # else // (defined(_OPENMP) && _OPENMP >= 201307) # define _PSTL_PRAGMA_SIMD # define _PSTL_PRAGMA_DECLARE_SIMD # define _PSTL_PRAGMA_SIMD_REDUCTION(PRM) # define _PSTL_PRAGMA_SIMD_SCAN(PRM) # define _PSTL_PRAGMA_SIMD_INCLUSIVE_SCAN(PRM) # define _PSTL_PRAGMA_SIMD_EXCLUSIVE_SCAN(PRM) # define _PSTL_PRAGMA_DECLARE_REDUCTION(NAME, OP) # endif // (defined(_OPENMP) && _OPENMP >= 201307) # define _PSTL_USE_NONTEMPORAL_STORES_IF_ALLOWED #endif // __cplusplus #endif // _LIBCPP___CONFIG