1// -*- C++ -*- 2//===--------------------------- __config ---------------------------------===// 3// 4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5// See https://llvm.org/LICENSE.txt for license information. 6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7// 8//===----------------------------------------------------------------------===// 9 10#ifndef _LIBCPP_CONFIG 11#define _LIBCPP_CONFIG 12 13#if defined(_MSC_VER) && !defined(__clang__) 14# if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 15# define _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER 16# endif 17#endif 18 19#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER 20#pragma GCC system_header 21#endif 22 23#ifdef __cplusplus 24 25#ifdef __GNUC__ 26# define _GNUC_VER (__GNUC__ * 100 + __GNUC_MINOR__) 27// The _GNUC_VER_NEW macro better represents the new GCC versioning scheme 28// introduced in GCC 5.0. 29# define _GNUC_VER_NEW (_GNUC_VER * 10 + __GNUC_PATCHLEVEL__) 30#else 31# define _GNUC_VER 0 32# define _GNUC_VER_NEW 0 33#endif 34 35#define _LIBCPP_VERSION 11000 36 37#ifndef _LIBCPP_ABI_VERSION 38# define _LIBCPP_ABI_VERSION 1 39#endif 40 41#ifndef __STDC_HOSTED__ 42# define _LIBCPP_FREESTANDING 43#endif 44 45#ifndef _LIBCPP_STD_VER 46# if __cplusplus <= 201103L 47# define _LIBCPP_STD_VER 11 48# elif __cplusplus <= 201402L 49# define _LIBCPP_STD_VER 14 50# elif __cplusplus <= 201703L 51# define _LIBCPP_STD_VER 17 52# else 53# define _LIBCPP_STD_VER 18 // current year, or date of c++2a ratification 54# endif 55#endif // _LIBCPP_STD_VER 56 57#if defined(__ELF__) 58# define _LIBCPP_OBJECT_FORMAT_ELF 1 59#elif defined(__MACH__) 60# define _LIBCPP_OBJECT_FORMAT_MACHO 1 61#elif defined(_WIN32) 62# define _LIBCPP_OBJECT_FORMAT_COFF 1 63#elif defined(__wasm__) 64# define _LIBCPP_OBJECT_FORMAT_WASM 1 65#else 66# error Unknown object file format 67#endif 68 69#if defined(_LIBCPP_ABI_UNSTABLE) || _LIBCPP_ABI_VERSION >= 2 70// Change short string representation so that string data starts at offset 0, 71// improving its alignment in some cases. 72# define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT 73// Fix deque iterator type in order to support incomplete types. 74# define _LIBCPP_ABI_INCOMPLETE_TYPES_IN_DEQUE 75// Fix undefined behavior in how std::list stores its linked nodes. 76# define _LIBCPP_ABI_LIST_REMOVE_NODE_POINTER_UB 77// Fix undefined behavior in how __tree stores its end and parent nodes. 78# define _LIBCPP_ABI_TREE_REMOVE_NODE_POINTER_UB 79// Fix undefined behavior in how __hash_table stores its pointer types. 80# define _LIBCPP_ABI_FIX_UNORDERED_NODE_POINTER_UB 81# define _LIBCPP_ABI_FORWARD_LIST_REMOVE_NODE_POINTER_UB 82# define _LIBCPP_ABI_FIX_UNORDERED_CONTAINER_SIZE_TYPE 83// Don't use a nullptr_t simulation type in C++03 instead using C++11 nullptr 84// provided under the alternate keyword __nullptr, which changes the mangling 85// of nullptr_t. This option is ABI incompatible with GCC in C++03 mode. 86# define _LIBCPP_ABI_ALWAYS_USE_CXX11_NULLPTR 87// Define the `pointer_safety` enum as a C++11 strongly typed enumeration 88// instead of as a class simulating an enum. If this option is enabled 89// `pointer_safety` and `get_pointer_safety()` will no longer be available 90// in C++03. 91# define _LIBCPP_ABI_POINTER_SAFETY_ENUM_TYPE 92// Define a key function for `bad_function_call` in the library, to centralize 93// its vtable and typeinfo to libc++ rather than having all other libraries 94// using that class define their own copies. 95# define _LIBCPP_ABI_BAD_FUNCTION_CALL_KEY_FUNCTION 96// Enable optimized version of __do_get_(un)signed which avoids redundant copies. 97# define _LIBCPP_ABI_OPTIMIZED_LOCALE_NUM_GET 98// Use the smallest possible integer type to represent the index of the variant. 99// Previously libc++ used "unsigned int" exclusively. 100# define _LIBCPP_ABI_VARIANT_INDEX_TYPE_OPTIMIZATION 101// Unstable attempt to provide a more optimized std::function 102# define _LIBCPP_ABI_OPTIMIZED_FUNCTION 103// All the regex constants must be distinct and nonzero. 104# define _LIBCPP_ABI_REGEX_CONSTANTS_NONZERO 105// Re-worked external template instantiations for std::string with a focus on 106// performance and fast-path inlining. 107# define _LIBCPP_ABI_STRING_OPTIMIZED_EXTERNAL_INSTANTIATION 108#elif _LIBCPP_ABI_VERSION == 1 109# if !defined(_LIBCPP_OBJECT_FORMAT_COFF) 110// Enable compiling copies of now inline methods into the dylib to support 111// applications compiled against older libraries. This is unnecessary with 112// COFF dllexport semantics, since dllexport forces a non-inline definition 113// of inline functions to be emitted anyway. Our own non-inline copy would 114// conflict with the dllexport-emitted copy, so we disable it. 115# define _LIBCPP_DEPRECATED_ABI_LEGACY_LIBRARY_DEFINITIONS_FOR_INLINE_FUNCTIONS 116# endif 117// Feature macros for disabling pre ABI v1 features. All of these options 118// are deprecated. 119# if defined(__FreeBSD__) 120# define _LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR 121# endif 122#endif 123 124#ifdef _LIBCPP_TRIVIAL_PAIR_COPY_CTOR 125#error "_LIBCPP_TRIVIAL_PAIR_COPY_CTOR" is no longer supported. \ 126 use _LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR instead 127#endif 128 129#define _LIBCPP_CONCAT1(_LIBCPP_X,_LIBCPP_Y) _LIBCPP_X##_LIBCPP_Y 130#define _LIBCPP_CONCAT(_LIBCPP_X,_LIBCPP_Y) _LIBCPP_CONCAT1(_LIBCPP_X,_LIBCPP_Y) 131 132#ifndef _LIBCPP_ABI_NAMESPACE 133# define _LIBCPP_ABI_NAMESPACE _LIBCPP_CONCAT(__,_LIBCPP_ABI_VERSION) 134#endif 135 136#if __cplusplus < 201103L 137#define _LIBCPP_CXX03_LANG 138#endif 139 140#ifndef __has_attribute 141#define __has_attribute(__x) 0 142#endif 143 144#ifndef __has_builtin 145#define __has_builtin(__x) 0 146#endif 147 148#ifndef __has_extension 149#define __has_extension(__x) 0 150#endif 151 152#ifndef __has_feature 153#define __has_feature(__x) 0 154#endif 155 156#ifndef __has_cpp_attribute 157#define __has_cpp_attribute(__x) 0 158#endif 159 160// '__is_identifier' returns '0' if '__x' is a reserved identifier provided by 161// the compiler and '1' otherwise. 162#ifndef __is_identifier 163#define __is_identifier(__x) 1 164#endif 165 166#ifndef __has_declspec_attribute 167#define __has_declspec_attribute(__x) 0 168#endif 169 170#define __has_keyword(__x) !(__is_identifier(__x)) 171 172#ifndef __has_include 173#define __has_include(...) 0 174#endif 175 176#if defined(__clang__) 177# define _LIBCPP_COMPILER_CLANG 178# ifndef __apple_build_version__ 179# define _LIBCPP_CLANG_VER (__clang_major__ * 100 + __clang_minor__) 180# endif 181#elif defined(__GNUC__) 182# define _LIBCPP_COMPILER_GCC 183#elif defined(_MSC_VER) 184# define _LIBCPP_COMPILER_MSVC 185#elif defined(__IBMCPP__) 186# define _LIBCPP_COMPILER_IBM 187#endif 188 189#if defined(_LIBCPP_COMPILER_GCC) && __cplusplus < 201103L 190#error "libc++ does not support using GCC with C++03. Please enable C++11" 191#endif 192 193// FIXME: ABI detection should be done via compiler builtin macros. This 194// is just a placeholder until Clang implements such macros. For now assume 195// that Windows compilers pretending to be MSVC++ target the Microsoft ABI, 196// and allow the user to explicitly specify the ABI to handle cases where this 197// heuristic falls short. 198#if defined(_LIBCPP_ABI_FORCE_ITANIUM) && defined(_LIBCPP_ABI_FORCE_MICROSOFT) 199# error "Only one of _LIBCPP_ABI_FORCE_ITANIUM and _LIBCPP_ABI_FORCE_MICROSOFT can be defined" 200#elif defined(_LIBCPP_ABI_FORCE_ITANIUM) 201# define _LIBCPP_ABI_ITANIUM 202#elif defined(_LIBCPP_ABI_FORCE_MICROSOFT) 203# define _LIBCPP_ABI_MICROSOFT 204#else 205# if defined(_WIN32) && defined(_MSC_VER) 206# define _LIBCPP_ABI_MICROSOFT 207# else 208# define _LIBCPP_ABI_ITANIUM 209# endif 210#endif 211 212#if defined(_LIBCPP_ABI_MICROSOFT) && !defined(_LIBCPP_NO_VCRUNTIME) 213# define _LIBCPP_ABI_VCRUNTIME 214#endif 215 216// Need to detect which libc we're using if we're on Linux. 217#if defined(__linux__) 218# include <features.h> 219# if defined(__GLIBC_PREREQ) 220# define _LIBCPP_GLIBC_PREREQ(a, b) __GLIBC_PREREQ(a, b) 221# else 222# define _LIBCPP_GLIBC_PREREQ(a, b) 0 223# endif // defined(__GLIBC_PREREQ) 224#endif // defined(__linux__) 225 226#ifdef __LITTLE_ENDIAN__ 227# if __LITTLE_ENDIAN__ 228# define _LIBCPP_LITTLE_ENDIAN 229# endif // __LITTLE_ENDIAN__ 230#endif // __LITTLE_ENDIAN__ 231 232#ifdef __BIG_ENDIAN__ 233# if __BIG_ENDIAN__ 234# define _LIBCPP_BIG_ENDIAN 235# endif // __BIG_ENDIAN__ 236#endif // __BIG_ENDIAN__ 237 238#ifdef __BYTE_ORDER__ 239# if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 240# define _LIBCPP_LITTLE_ENDIAN 241# elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 242# define _LIBCPP_BIG_ENDIAN 243# endif // __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 244#endif // __BYTE_ORDER__ 245 246#ifdef __FreeBSD__ 247# include <sys/endian.h> 248# include <osreldate.h> 249# if _BYTE_ORDER == _LITTLE_ENDIAN 250# define _LIBCPP_LITTLE_ENDIAN 251# else // _BYTE_ORDER == _LITTLE_ENDIAN 252# define _LIBCPP_BIG_ENDIAN 253# endif // _BYTE_ORDER == _LITTLE_ENDIAN 254# ifndef __LONG_LONG_SUPPORTED 255# define _LIBCPP_HAS_NO_LONG_LONG 256# endif // __LONG_LONG_SUPPORTED 257#endif // __FreeBSD__ 258 259#ifdef __NetBSD__ 260# include <sys/endian.h> 261# if _BYTE_ORDER == _LITTLE_ENDIAN 262# define _LIBCPP_LITTLE_ENDIAN 263# else // _BYTE_ORDER == _LITTLE_ENDIAN 264# define _LIBCPP_BIG_ENDIAN 265# endif // _BYTE_ORDER == _LITTLE_ENDIAN 266#endif // __NetBSD__ 267 268#ifdef __OpenBSD__ 269# include <sys/_endian.h> 270# if _BYTE_ORDER == _LITTLE_ENDIAN 271# define _LIBCPP_LITTLE_ENDIAN 272# else // _BYTE_ORDER == _LITTLE_ENDIAN 273# define _LIBCPP_BIG_ENDIAN 274# endif // _BYTE_ORDER == _LITTLE_ENDIAN 275#endif // __OpenBSD__ 276 277#if defined(_WIN32) 278# define _LIBCPP_WIN32API 279# define _LIBCPP_LITTLE_ENDIAN 280# define _LIBCPP_SHORT_WCHAR 1 281// Both MinGW and native MSVC provide a "MSVC"-like environment 282# define _LIBCPP_MSVCRT_LIKE 283// If mingw not explicitly detected, assume using MS C runtime only if 284// a MS compatibility version is specified. 285# if defined(_MSC_VER) && !defined(__MINGW32__) 286# define _LIBCPP_MSVCRT // Using Microsoft's C Runtime library 287# endif 288# if (defined(_M_AMD64) || defined(__x86_64__)) || (defined(_M_ARM) || defined(__arm__)) 289# define _LIBCPP_HAS_BITSCAN64 290# endif 291# define _LIBCPP_HAS_OPEN_WITH_WCHAR 292# if defined(_LIBCPP_MSVCRT) 293# define _LIBCPP_HAS_QUICK_EXIT 294# endif 295 296// Some CRT APIs are unavailable to store apps 297# if defined(WINAPI_FAMILY) 298# include <winapifamily.h> 299# if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) && \ 300 (!defined(WINAPI_PARTITION_SYSTEM) || \ 301 !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_SYSTEM)) 302# define _LIBCPP_WINDOWS_STORE_APP 303# endif 304# endif 305#endif // defined(_WIN32) 306 307#ifdef __sun__ 308# include <sys/isa_defs.h> 309# ifdef _LITTLE_ENDIAN 310# define _LIBCPP_LITTLE_ENDIAN 311# else 312# define _LIBCPP_BIG_ENDIAN 313# endif 314#endif // __sun__ 315 316#if defined(__CloudABI__) || defined(__OpenBSD__) 317 // Certain architectures provide arc4random(). Prefer using 318 // arc4random() over /dev/{u,}random to make it possible to obtain 319 // random data even when using sandboxing mechanisms such as chroots, 320 // Capsicum, etc. 321# define _LIBCPP_USING_ARC4_RANDOM 322#elif defined(__Fuchsia__) || defined(__wasi__) 323# define _LIBCPP_USING_GETENTROPY 324#elif defined(__native_client__) 325 // NaCl's sandbox (which PNaCl also runs in) doesn't allow filesystem access, 326 // including accesses to the special files under /dev. C++11's 327 // std::random_device is instead exposed through a NaCl syscall. 328# define _LIBCPP_USING_NACL_RANDOM 329#elif defined(_LIBCPP_WIN32API) 330# define _LIBCPP_USING_WIN32_RANDOM 331#else 332# define _LIBCPP_USING_DEV_RANDOM 333#endif 334 335#if !defined(_LIBCPP_LITTLE_ENDIAN) && !defined(_LIBCPP_BIG_ENDIAN) 336# include <endian.h> 337# if __BYTE_ORDER == __LITTLE_ENDIAN 338# define _LIBCPP_LITTLE_ENDIAN 339# elif __BYTE_ORDER == __BIG_ENDIAN 340# define _LIBCPP_BIG_ENDIAN 341# else // __BYTE_ORDER == __BIG_ENDIAN 342# error unable to determine endian 343# endif 344#endif // !defined(_LIBCPP_LITTLE_ENDIAN) && !defined(_LIBCPP_BIG_ENDIAN) 345 346#if __has_attribute(__no_sanitize__) && !defined(_LIBCPP_COMPILER_GCC) 347# define _LIBCPP_NO_CFI __attribute__((__no_sanitize__("cfi"))) 348#else 349# define _LIBCPP_NO_CFI 350#endif 351 352#if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L 353# if defined(__FreeBSD__) 354# define _LIBCPP_HAS_ALIGNED_ALLOC 355# define _LIBCPP_HAS_QUICK_EXIT 356# define _LIBCPP_HAS_C11_FEATURES 357# if __FreeBSD_version >= 1300064 || \ 358 (__FreeBSD_version >= 1201504 && __FreeBSD_version < 1300000) 359# define _LIBCPP_HAS_TIMESPEC_GET 360# endif 361# elif defined(__BIONIC__) 362# define _LIBCPP_HAS_C11_FEATURES 363# if __ANDROID_API__ >= 21 364# define _LIBCPP_HAS_QUICK_EXIT 365# endif 366# if __ANDROID_API__ >= 28 367# define _LIBCPP_HAS_ALIGNED_ALLOC 368# endif 369# if __ANDROID_API__ >= 29 370# define _LIBCPP_HAS_TIMESPEC_GET 371# endif 372# elif defined(__OpenBSD__) 373# define _LIBCPP_HAS_ALIGNED_ALLOC 374# define _LIBCPP_HAS_TIMESPEC_GET 375# define _LIBCPP_HAS_C11_FEATURES 376# elif defined(__Fuchsia__) || defined(__wasi__) || defined(__NetBSD__) 377# define _LIBCPP_HAS_ALIGNED_ALLOC 378# define _LIBCPP_HAS_QUICK_EXIT 379# define _LIBCPP_HAS_TIMESPEC_GET 380# define _LIBCPP_HAS_C11_FEATURES 381# elif defined(__linux__) 382# if !defined(_LIBCPP_HAS_MUSL_LIBC) 383# if _LIBCPP_GLIBC_PREREQ(2, 15) || defined(__BIONIC__) 384# define _LIBCPP_HAS_QUICK_EXIT 385# endif 386# if _LIBCPP_GLIBC_PREREQ(2, 17) 387# define _LIBCPP_HAS_ALIGNED_ALLOC 388# define _LIBCPP_HAS_C11_FEATURES 389# define _LIBCPP_HAS_TIMESPEC_GET 390# endif 391# else // defined(_LIBCPP_HAS_MUSL_LIBC) 392# define _LIBCPP_HAS_ALIGNED_ALLOC 393# define _LIBCPP_HAS_QUICK_EXIT 394# define _LIBCPP_HAS_TIMESPEC_GET 395# define _LIBCPP_HAS_C11_FEATURES 396# endif 397# endif // __linux__ 398#endif 399 400#ifndef _LIBCPP_CXX03_LANG 401# define _LIBCPP_ALIGNOF(_Tp) alignof(_Tp) 402#elif defined(_LIBCPP_COMPILER_CLANG) 403# define _LIBCPP_ALIGNOF(_Tp) _Alignof(_Tp) 404#else 405// This definition is potentially buggy, but it's only taken with GCC in C++03, 406// which we barely support anyway. See llvm.org/PR39713 407# define _LIBCPP_ALIGNOF(_Tp) __alignof(_Tp) 408#endif 409 410#define _LIBCPP_PREFERRED_ALIGNOF(_Tp) __alignof(_Tp) 411 412#if defined(_LIBCPP_COMPILER_CLANG) 413 414#if defined(_LIBCPP_ALTERNATE_STRING_LAYOUT) 415# error _LIBCPP_ALTERNATE_STRING_LAYOUT is deprecated, please use _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT instead 416#endif 417#if defined(__APPLE__) && !defined(__i386__) && !defined(__x86_64__) && \ 418 (!defined(__arm__) || __ARM_ARCH_7K__ >= 2) 419# define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT 420#endif 421 422#if __has_feature(cxx_alignas) 423# define _ALIGNAS_TYPE(x) alignas(x) 424# define _ALIGNAS(x) alignas(x) 425#else 426# define _ALIGNAS_TYPE(x) __attribute__((__aligned__(_LIBCPP_ALIGNOF(x)))) 427# define _ALIGNAS(x) __attribute__((__aligned__(x))) 428#endif 429 430#if __cplusplus < 201103L 431typedef __char16_t char16_t; 432typedef __char32_t char32_t; 433#endif 434 435#if !__has_feature(cxx_exceptions) 436# define _LIBCPP_NO_EXCEPTIONS 437#endif 438 439#if !(__has_feature(cxx_strong_enums)) 440#define _LIBCPP_HAS_NO_STRONG_ENUMS 441#endif 442 443#if __has_feature(cxx_attributes) 444# define _LIBCPP_NORETURN [[noreturn]] 445#else 446# define _LIBCPP_NORETURN __attribute__ ((noreturn)) 447#endif 448 449#if !(__has_feature(cxx_lambdas)) 450#define _LIBCPP_HAS_NO_LAMBDAS 451#endif 452 453#if !(__has_feature(cxx_nullptr)) 454# if (__has_extension(cxx_nullptr) || __has_keyword(__nullptr)) && defined(_LIBCPP_ABI_ALWAYS_USE_CXX11_NULLPTR) 455# define nullptr __nullptr 456# else 457# define _LIBCPP_HAS_NO_NULLPTR 458# endif 459#endif 460 461#if !(__has_feature(cxx_rvalue_references)) 462#define _LIBCPP_HAS_NO_RVALUE_REFERENCES 463#endif 464 465#if !(__has_feature(cxx_auto_type)) 466#define _LIBCPP_HAS_NO_AUTO_TYPE 467#endif 468 469#if !(__has_feature(cxx_variadic_templates)) 470#define _LIBCPP_HAS_NO_VARIADICS 471#endif 472 473// Objective-C++ features (opt-in) 474#if __has_feature(objc_arc) 475#define _LIBCPP_HAS_OBJC_ARC 476#endif 477 478#if __has_feature(objc_arc_weak) 479#define _LIBCPP_HAS_OBJC_ARC_WEAK 480#endif 481 482#if __has_extension(blocks) 483# define _LIBCPP_HAS_EXTENSION_BLOCKS 484#endif 485 486#if defined(_LIBCPP_HAS_EXTENSION_BLOCKS) && defined(__APPLE__) 487# define _LIBCPP_HAS_BLOCKS_RUNTIME 488#endif 489 490#if !(__has_feature(cxx_relaxed_constexpr)) 491#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR 492#endif 493 494#if !(__has_feature(cxx_variable_templates)) 495#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 496#endif 497 498#if !(__has_feature(cxx_noexcept)) 499#define _LIBCPP_HAS_NO_NOEXCEPT 500#endif 501 502#if !defined(_LIBCPP_HAS_NO_ASAN) && !__has_feature(address_sanitizer) 503#define _LIBCPP_HAS_NO_ASAN 504#endif 505 506// Allow for build-time disabling of unsigned integer sanitization 507#if !defined(_LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK) && __has_attribute(no_sanitize) 508#define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK __attribute__((__no_sanitize__("unsigned-integer-overflow"))) 509#endif 510 511#if __has_builtin(__builtin_launder) 512#define _LIBCPP_COMPILER_HAS_BUILTIN_LAUNDER 513#endif 514 515#if __has_builtin(__builtin_constant_p) 516#define _LIBCPP_COMPILER_HAS_BUILTIN_CONSTANT_P 517#endif 518 519#if !__is_identifier(__has_unique_object_representations) 520#define _LIBCPP_HAS_UNIQUE_OBJECT_REPRESENTATIONS 521#endif 522 523#define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__)) 524 525// Literal operators ""d and ""y are supported starting with LLVM Clang 8 and AppleClang 10.0.1 526#if (defined(_LIBCPP_CLANG_VER) && _LIBCPP_CLANG_VER < 800) || \ 527 (defined(__apple_build_version__) && __apple_build_version__ < 10010000) 528#define _LIBCPP_HAS_NO_CXX20_CHRONO_LITERALS 529#endif 530 531#define _LIBCPP_DISABLE_EXTENSION_WARNING __extension__ 532 533#elif defined(_LIBCPP_COMPILER_GCC) 534 535#define _ALIGNAS(x) __attribute__((__aligned__(x))) 536#define _ALIGNAS_TYPE(x) __attribute__((__aligned__(_LIBCPP_ALIGNOF(x)))) 537 538#define _LIBCPP_NORETURN __attribute__((noreturn)) 539 540#if !__EXCEPTIONS 541# define _LIBCPP_NO_EXCEPTIONS 542#endif 543 544// Determine if GCC supports relaxed constexpr 545#if !defined(__cpp_constexpr) || __cpp_constexpr < 201304L 546#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR 547#endif 548 549// GCC 5 supports variable templates 550#if !defined(__cpp_variable_templates) || __cpp_variable_templates < 201304L 551#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 552#endif 553 554#if !defined(_LIBCPP_HAS_NO_ASAN) && !defined(__SANITIZE_ADDRESS__) 555#define _LIBCPP_HAS_NO_ASAN 556#endif 557 558#if _GNUC_VER >= 700 559#define _LIBCPP_COMPILER_HAS_BUILTIN_LAUNDER 560#define _LIBCPP_COMPILER_HAS_BUILTIN_CONSTANT_P 561#define _LIBCPP_HAS_UNIQUE_OBJECT_REPRESENTATIONS 562#endif 563 564#define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__)) 565 566#define _LIBCPP_DISABLE_EXTENSION_WARNING __extension__ 567 568#elif defined(_LIBCPP_COMPILER_MSVC) 569 570#define _LIBCPP_TOSTRING2(x) #x 571#define _LIBCPP_TOSTRING(x) _LIBCPP_TOSTRING2(x) 572#define _LIBCPP_WARNING(x) __pragma(message(__FILE__ "(" _LIBCPP_TOSTRING(__LINE__) ") : warning note: " x)) 573 574#if _MSC_VER < 1900 575#error "MSVC versions prior to Visual Studio 2015 are not supported" 576#endif 577 578#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR 579#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 580#define __alignof__ __alignof 581#define _LIBCPP_NORETURN __declspec(noreturn) 582#define _ALIGNAS(x) __declspec(align(x)) 583#define _ALIGNAS_TYPE(x) alignas(x) 584 585#define _LIBCPP_WEAK 586 587#define _LIBCPP_HAS_NO_ASAN 588 589#define _LIBCPP_ALWAYS_INLINE __forceinline 590 591#define _LIBCPP_HAS_NO_VECTOR_EXTENSION 592 593#define _LIBCPP_DISABLE_EXTENSION_WARNING 594 595#elif defined(_LIBCPP_COMPILER_IBM) 596 597#define _ALIGNAS(x) __attribute__((__aligned__(x))) 598#define _ALIGNAS_TYPE(x) __attribute__((__aligned__(_LIBCPP_ALIGNOF(x)))) 599#define _ATTRIBUTE(x) __attribute__((x)) 600#define _LIBCPP_NORETURN __attribute__((noreturn)) 601 602#define _LIBCPP_HAS_NO_UNICODE_CHARS 603#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 604 605#if defined(_AIX) 606#define __MULTILOCALE_API 607#endif 608 609#define _LIBCPP_HAS_NO_ASAN 610 611#define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__)) 612 613#define _LIBCPP_HAS_NO_VECTOR_EXTENSION 614 615#define _LIBCPP_DISABLE_EXTENSION_WARNING 616 617#endif // _LIBCPP_COMPILER_[CLANG|GCC|MSVC|IBM] 618 619#if defined(_LIBCPP_OBJECT_FORMAT_COFF) 620 621#ifdef _DLL 622# define _LIBCPP_CRT_FUNC __declspec(dllimport) 623#else 624# define _LIBCPP_CRT_FUNC 625#endif 626 627#if defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 628# define _LIBCPP_DLL_VIS 629# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 630# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 631# define _LIBCPP_OVERRIDABLE_FUNC_VIS 632# define _LIBCPP_EXPORTED_FROM_ABI 633#elif defined(_LIBCPP_BUILDING_LIBRARY) 634# define _LIBCPP_DLL_VIS __declspec(dllexport) 635# if defined(__MINGW32__) 636# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS _LIBCPP_DLL_VIS 637# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 638# else 639# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 640# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS _LIBCPP_DLL_VIS 641# endif 642# define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_DLL_VIS 643# define _LIBCPP_EXPORTED_FROM_ABI __declspec(dllexport) 644#else 645# define _LIBCPP_DLL_VIS __declspec(dllimport) 646# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS _LIBCPP_DLL_VIS 647# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 648# define _LIBCPP_OVERRIDABLE_FUNC_VIS 649# define _LIBCPP_EXPORTED_FROM_ABI __declspec(dllimport) 650#endif 651 652#define _LIBCPP_TYPE_VIS _LIBCPP_DLL_VIS 653#define _LIBCPP_FUNC_VIS _LIBCPP_DLL_VIS 654#define _LIBCPP_EXCEPTION_ABI _LIBCPP_DLL_VIS 655#define _LIBCPP_HIDDEN 656#define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 657#define _LIBCPP_TEMPLATE_VIS 658#define _LIBCPP_ENUM_VIS 659 660#endif // defined(_LIBCPP_OBJECT_FORMAT_COFF) 661 662#ifndef _LIBCPP_HIDDEN 663# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 664# define _LIBCPP_HIDDEN __attribute__ ((__visibility__("hidden"))) 665# else 666# define _LIBCPP_HIDDEN 667# endif 668#endif 669 670#ifndef _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 671# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 672// The inline should be removed once PR32114 is resolved 673# define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS inline _LIBCPP_HIDDEN 674# else 675# define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 676# endif 677#endif 678 679#ifndef _LIBCPP_FUNC_VIS 680# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 681# define _LIBCPP_FUNC_VIS __attribute__ ((__visibility__("default"))) 682# else 683# define _LIBCPP_FUNC_VIS 684# endif 685#endif 686 687#ifndef _LIBCPP_TYPE_VIS 688# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 689# define _LIBCPP_TYPE_VIS __attribute__ ((__visibility__("default"))) 690# else 691# define _LIBCPP_TYPE_VIS 692# endif 693#endif 694 695#ifndef _LIBCPP_TEMPLATE_VIS 696# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 697# if __has_attribute(__type_visibility__) 698# define _LIBCPP_TEMPLATE_VIS __attribute__ ((__type_visibility__("default"))) 699# else 700# define _LIBCPP_TEMPLATE_VIS __attribute__ ((__visibility__("default"))) 701# endif 702# else 703# define _LIBCPP_TEMPLATE_VIS 704# endif 705#endif 706 707#ifndef _LIBCPP_EXPORTED_FROM_ABI 708# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 709# define _LIBCPP_EXPORTED_FROM_ABI __attribute__((__visibility__("default"))) 710# else 711# define _LIBCPP_EXPORTED_FROM_ABI 712# endif 713#endif 714 715#ifndef _LIBCPP_OVERRIDABLE_FUNC_VIS 716#define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_FUNC_VIS 717#endif 718 719#ifndef _LIBCPP_EXCEPTION_ABI 720# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 721# define _LIBCPP_EXCEPTION_ABI __attribute__ ((__visibility__("default"))) 722# else 723# define _LIBCPP_EXCEPTION_ABI 724# endif 725#endif 726 727#ifndef _LIBCPP_ENUM_VIS 728# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__) 729# define _LIBCPP_ENUM_VIS __attribute__ ((__type_visibility__("default"))) 730# else 731# define _LIBCPP_ENUM_VIS 732# endif 733#endif 734 735#ifndef _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 736# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__) 737# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS __attribute__ ((__visibility__("default"))) 738# else 739# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 740# endif 741#endif 742 743#ifndef _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 744#define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 745#endif 746 747#if __has_attribute(internal_linkage) 748# define _LIBCPP_INTERNAL_LINKAGE __attribute__ ((internal_linkage)) 749#else 750# define _LIBCPP_INTERNAL_LINKAGE _LIBCPP_ALWAYS_INLINE 751#endif 752 753#if __has_attribute(exclude_from_explicit_instantiation) 754# define _LIBCPP_EXCLUDE_FROM_EXPLICIT_INSTANTIATION __attribute__ ((__exclude_from_explicit_instantiation__)) 755#else 756 // Try to approximate the effect of exclude_from_explicit_instantiation 757 // (which is that entities are not assumed to be provided by explicit 758 // template instantiations in the dylib) by always inlining those entities. 759# define _LIBCPP_EXCLUDE_FROM_EXPLICIT_INSTANTIATION _LIBCPP_ALWAYS_INLINE 760#endif 761 762#ifndef _LIBCPP_HIDE_FROM_ABI_PER_TU 763# ifndef _LIBCPP_HIDE_FROM_ABI_PER_TU_BY_DEFAULT 764# define _LIBCPP_HIDE_FROM_ABI_PER_TU 0 765# else 766# define _LIBCPP_HIDE_FROM_ABI_PER_TU 1 767# endif 768#endif 769 770#ifndef _LIBCPP_TYPEINFO_COMPARISON_IMPLEMENTATION 771# ifdef _LIBCPP_OBJECT_FORMAT_COFF // Windows binaries can't merge typeinfos. 772# define _LIBCPP_TYPEINFO_COMPARISON_IMPLEMENTATION 2 773# else 774 // TODO: This isn't strictly correct on ELF platforms due to llvm.org/PR37398 775 // And we should consider defaulting to OFF. 776# define _LIBCPP_TYPEINFO_COMPARISON_IMPLEMENTATION 1 777# endif 778#endif 779 780#ifndef _LIBCPP_HIDE_FROM_ABI 781# if _LIBCPP_HIDE_FROM_ABI_PER_TU 782# define _LIBCPP_HIDE_FROM_ABI _LIBCPP_HIDDEN _LIBCPP_INTERNAL_LINKAGE 783# else 784# define _LIBCPP_HIDE_FROM_ABI _LIBCPP_HIDDEN _LIBCPP_EXCLUDE_FROM_EXPLICIT_INSTANTIATION 785# endif 786#endif 787 788#ifdef _LIBCPP_BUILDING_LIBRARY 789# if _LIBCPP_ABI_VERSION > 1 790# define _LIBCPP_HIDE_FROM_ABI_AFTER_V1 _LIBCPP_HIDE_FROM_ABI 791# else 792# define _LIBCPP_HIDE_FROM_ABI_AFTER_V1 793# endif 794#else 795# define _LIBCPP_HIDE_FROM_ABI_AFTER_V1 _LIBCPP_HIDE_FROM_ABI 796#endif 797 798// Just so we can migrate to the new macros gradually. 799#define _LIBCPP_INLINE_VISIBILITY _LIBCPP_HIDE_FROM_ABI 800 801// Inline namespaces are available in Clang/GCC/MSVC regardless of C++ dialect. 802#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { inline namespace _LIBCPP_ABI_NAMESPACE { 803#define _LIBCPP_END_NAMESPACE_STD } } 804#define _VSTD std::_LIBCPP_ABI_NAMESPACE 805_LIBCPP_BEGIN_NAMESPACE_STD _LIBCPP_END_NAMESPACE_STD 806 807#if _LIBCPP_STD_VER >= 17 808#define _LIBCPP_BEGIN_NAMESPACE_FILESYSTEM \ 809 _LIBCPP_BEGIN_NAMESPACE_STD inline namespace __fs { namespace filesystem { 810#else 811#define _LIBCPP_BEGIN_NAMESPACE_FILESYSTEM \ 812 _LIBCPP_BEGIN_NAMESPACE_STD namespace __fs { namespace filesystem { 813#endif 814 815#define _LIBCPP_END_NAMESPACE_FILESYSTEM \ 816 _LIBCPP_END_NAMESPACE_STD } } 817 818#define _VSTD_FS _VSTD::__fs::filesystem 819 820#ifndef _LIBCPP_PREFERRED_OVERLOAD 821# if __has_attribute(__enable_if__) 822# define _LIBCPP_PREFERRED_OVERLOAD __attribute__ ((__enable_if__(true, ""))) 823# endif 824#endif 825 826#ifndef _LIBCPP_HAS_NO_NOEXCEPT 827# define _NOEXCEPT noexcept 828# define _NOEXCEPT_(x) noexcept(x) 829#else 830# define _NOEXCEPT throw() 831# define _NOEXCEPT_(x) 832#endif 833 834#ifdef _LIBCPP_HAS_NO_UNICODE_CHARS 835typedef unsigned short char16_t; 836typedef unsigned int char32_t; 837#endif // _LIBCPP_HAS_NO_UNICODE_CHARS 838 839#ifndef __SIZEOF_INT128__ 840#define _LIBCPP_HAS_NO_INT128 841#endif 842 843#ifdef _LIBCPP_CXX03_LANG 844# define static_assert(...) _Static_assert(__VA_ARGS__) 845# define decltype(...) __decltype(__VA_ARGS__) 846#endif // _LIBCPP_CXX03_LANG 847 848#ifdef _LIBCPP_CXX03_LANG 849# define _LIBCPP_CONSTEXPR 850#else 851# define _LIBCPP_CONSTEXPR constexpr 852#endif 853 854#ifdef _LIBCPP_CXX03_LANG 855# define _LIBCPP_DEFAULT {} 856#else 857# define _LIBCPP_DEFAULT = default; 858#endif 859 860#ifdef _LIBCPP_CXX03_LANG 861# define _LIBCPP_EQUAL_DELETE 862#else 863# define _LIBCPP_EQUAL_DELETE = delete 864#endif 865 866#ifdef __GNUC__ 867# define _LIBCPP_NOALIAS __attribute__((__malloc__)) 868#else 869# define _LIBCPP_NOALIAS 870#endif 871 872#if __has_feature(cxx_explicit_conversions) || defined(__IBMCPP__) || \ 873 (!defined(_LIBCPP_CXX03_LANG) && defined(__GNUC__)) // All supported GCC versions 874# define _LIBCPP_EXPLICIT explicit 875#else 876# define _LIBCPP_EXPLICIT 877#endif 878 879#if !__has_builtin(__builtin_operator_new) || !__has_builtin(__builtin_operator_delete) 880#define _LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE 881#endif 882 883#ifdef _LIBCPP_HAS_NO_STRONG_ENUMS 884# define _LIBCPP_DECLARE_STRONG_ENUM(x) struct _LIBCPP_TYPE_VIS x { enum __lx 885# define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) \ 886 __lx __v_; \ 887 _LIBCPP_INLINE_VISIBILITY x(__lx __v) : __v_(__v) {} \ 888 _LIBCPP_INLINE_VISIBILITY explicit x(int __v) : __v_(static_cast<__lx>(__v)) {} \ 889 _LIBCPP_INLINE_VISIBILITY operator int() const {return __v_;} \ 890 }; 891#else // _LIBCPP_HAS_NO_STRONG_ENUMS 892# define _LIBCPP_DECLARE_STRONG_ENUM(x) enum class _LIBCPP_ENUM_VIS x 893# define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) 894#endif // _LIBCPP_HAS_NO_STRONG_ENUMS 895 896#ifdef _LIBCPP_DEBUG 897# if _LIBCPP_DEBUG == 0 898# define _LIBCPP_DEBUG_LEVEL 1 899# elif _LIBCPP_DEBUG == 1 900# define _LIBCPP_DEBUG_LEVEL 2 901# else 902# error Supported values for _LIBCPP_DEBUG are 0 and 1 903# endif 904# if !defined(_LIBCPP_BUILDING_LIBRARY) 905# define _LIBCPP_EXTERN_TEMPLATE(...) 906# endif 907#endif 908 909#ifndef _LIBCPP_DEBUG_LEVEL 910# define _LIBCPP_DEBUG_LEVEL 0 911#endif 912 913#ifdef _LIBCPP_DISABLE_EXTERN_TEMPLATE 914#define _LIBCPP_EXTERN_TEMPLATE(...) 915#define _LIBCPP_EXTERN_TEMPLATE2(...) 916#endif 917 918#ifndef _LIBCPP_EXTERN_TEMPLATE 919#define _LIBCPP_EXTERN_TEMPLATE(...) extern template __VA_ARGS__; 920#endif 921 922#ifndef _LIBCPP_EXTERN_TEMPLATE2 923#define _LIBCPP_EXTERN_TEMPLATE2(...) extern template __VA_ARGS__; 924#endif 925 926#ifndef _LIBCPP_EXTERN_TEMPLATE_DEFINE 927#define _LIBCPP_EXTERN_TEMPLATE_DEFINE(...) template __VA_ARGS__; 928#endif 929 930#if defined(__APPLE__) || defined(__FreeBSD__) || defined(_LIBCPP_MSVCRT_LIKE) || \ 931 defined(__sun__) || defined(__NetBSD__) || defined(__CloudABI__) 932#define _LIBCPP_LOCALE__L_EXTENSIONS 1 933#endif 934 935#if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__)) 936// Most unix variants have catopen. These are the specific ones that don't. 937# if !defined(__BIONIC__) && !defined(_NEWLIB_VERSION) 938# define _LIBCPP_HAS_CATOPEN 1 939# endif 940#endif 941 942#ifdef __FreeBSD__ 943#define _DECLARE_C99_LDBL_MATH 1 944#endif 945 946// If we are getting operator new from the MSVC CRT, then allocation overloads 947// for align_val_t were added in 19.12, aka VS 2017 version 15.3. 948#if defined(_LIBCPP_MSVCRT) && defined(_MSC_VER) && _MSC_VER < 1912 949# define _LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION 950#elif defined(_LIBCPP_ABI_VCRUNTIME) && !defined(__cpp_aligned_new) 951 // We're deferring to Microsoft's STL to provide aligned new et al. We don't 952 // have it unless the language feature test macro is defined. 953# define _LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION 954#endif 955 956#if defined(__APPLE__) 957# if !defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && \ 958 defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) 959# define __MAC_OS_X_VERSION_MIN_REQUIRED __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ 960# endif 961#endif // defined(__APPLE__) 962 963#if !defined(_LIBCPP_HAS_NO_ALIGNED_ALLOCATION) && \ 964 (defined(_LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION) || \ 965 (!defined(__cpp_aligned_new) || __cpp_aligned_new < 201606)) 966# define _LIBCPP_HAS_NO_ALIGNED_ALLOCATION 967#endif 968 969#if defined(__APPLE__) || defined(__FreeBSD__) 970#define _LIBCPP_HAS_DEFAULTRUNELOCALE 971#endif 972 973#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__sun__) 974#define _LIBCPP_WCTYPE_IS_MASK 975#endif 976 977#if _LIBCPP_STD_VER <= 17 || !defined(__cpp_char8_t) 978#define _LIBCPP_NO_HAS_CHAR8_T 979#endif 980 981// Deprecation macros. 982// 983// Deprecations warnings are always enabled, except when users explicitly opt-out 984// by defining _LIBCPP_DISABLE_DEPRECATION_WARNINGS. 985#if !defined(_LIBCPP_DISABLE_DEPRECATION_WARNINGS) 986# if __has_attribute(deprecated) 987# define _LIBCPP_DEPRECATED __attribute__ ((deprecated)) 988# elif _LIBCPP_STD_VER > 11 989# define _LIBCPP_DEPRECATED [[deprecated]] 990# else 991# define _LIBCPP_DEPRECATED 992# endif 993#else 994# define _LIBCPP_DEPRECATED 995#endif 996 997#if !defined(_LIBCPP_CXX03_LANG) 998# define _LIBCPP_DEPRECATED_IN_CXX11 _LIBCPP_DEPRECATED 999#else 1000# define _LIBCPP_DEPRECATED_IN_CXX11 1001#endif 1002 1003#if _LIBCPP_STD_VER >= 14 1004# define _LIBCPP_DEPRECATED_IN_CXX14 _LIBCPP_DEPRECATED 1005#else 1006# define _LIBCPP_DEPRECATED_IN_CXX14 1007#endif 1008 1009#if _LIBCPP_STD_VER >= 17 1010# define _LIBCPP_DEPRECATED_IN_CXX17 _LIBCPP_DEPRECATED 1011#else 1012# define _LIBCPP_DEPRECATED_IN_CXX17 1013#endif 1014 1015// Macros to enter and leave a state where deprecation warnings are suppressed. 1016#if !defined(_LIBCPP_SUPPRESS_DEPRECATED_PUSH) && \ 1017 (defined(_LIBCPP_COMPILER_CLANG) || defined(_LIBCPP_COMPILER_GCC)) 1018# define _LIBCPP_SUPPRESS_DEPRECATED_PUSH \ 1019 _Pragma("GCC diagnostic push") \ 1020 _Pragma("GCC diagnostic ignored \"-Wdeprecated\"") 1021# define _LIBCPP_SUPPRESS_DEPRECATED_POP \ 1022 _Pragma("GCC diagnostic pop") 1023#endif 1024#if !defined(_LIBCPP_SUPPRESS_DEPRECATED_PUSH) 1025# define _LIBCPP_SUPPRESS_DEPRECATED_PUSH 1026# define _LIBCPP_SUPPRESS_DEPRECATED_POP 1027#endif 1028 1029#if _LIBCPP_STD_VER <= 11 1030# define _LIBCPP_EXPLICIT_AFTER_CXX11 1031#else 1032# define _LIBCPP_EXPLICIT_AFTER_CXX11 explicit 1033#endif 1034 1035#if _LIBCPP_STD_VER > 11 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR) 1036# define _LIBCPP_CONSTEXPR_AFTER_CXX11 constexpr 1037#else 1038# define _LIBCPP_CONSTEXPR_AFTER_CXX11 1039#endif 1040 1041#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR) 1042# define _LIBCPP_CONSTEXPR_AFTER_CXX14 constexpr 1043#else 1044# define _LIBCPP_CONSTEXPR_AFTER_CXX14 1045#endif 1046 1047#if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR) 1048# define _LIBCPP_CONSTEXPR_AFTER_CXX17 constexpr 1049#else 1050# define _LIBCPP_CONSTEXPR_AFTER_CXX17 1051#endif 1052 1053#if _LIBCPP_STD_VER > 17 && \ 1054 !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR) && \ 1055 !defined(_LIBCPP_HAS_NO_BUILTIN_IS_CONSTANT_EVALUATED) 1056# define _LIBCPP_CONSTEXPR_AFTER_CXX17_WITH_IS_CONSTANT_EVALUATED constexpr 1057#else 1058# define _LIBCPP_CONSTEXPR_AFTER_CXX17_WITH_IS_CONSTANT_EVALUATED 1059#endif 1060 1061// The _LIBCPP_NODISCARD_ATTRIBUTE should only be used to define other 1062// NODISCARD macros to the correct attribute. 1063#if __has_cpp_attribute(nodiscard) || defined(_LIBCPP_COMPILER_MSVC) 1064# define _LIBCPP_NODISCARD_ATTRIBUTE [[nodiscard]] 1065#elif defined(_LIBCPP_COMPILER_CLANG) && !defined(_LIBCPP_CXX03_LANG) 1066# define _LIBCPP_NODISCARD_ATTRIBUTE [[clang::warn_unused_result]] 1067#else 1068// We can't use GCC's [[gnu::warn_unused_result]] and 1069// __attribute__((warn_unused_result)), because GCC does not silence them via 1070// (void) cast. 1071# define _LIBCPP_NODISCARD_ATTRIBUTE 1072#endif 1073 1074// _LIBCPP_NODISCARD_EXT may be used to apply [[nodiscard]] to entities not 1075// specified as such as an extension. 1076#if defined(_LIBCPP_ENABLE_NODISCARD) && !defined(_LIBCPP_DISABLE_NODISCARD_EXT) 1077# define _LIBCPP_NODISCARD_EXT _LIBCPP_NODISCARD_ATTRIBUTE 1078#else 1079# define _LIBCPP_NODISCARD_EXT 1080#endif 1081 1082#if !defined(_LIBCPP_DISABLE_NODISCARD_AFTER_CXX17) && \ 1083 (_LIBCPP_STD_VER > 17 || defined(_LIBCPP_ENABLE_NODISCARD)) 1084# define _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_NODISCARD_ATTRIBUTE 1085#else 1086# define _LIBCPP_NODISCARD_AFTER_CXX17 1087#endif 1088 1089#if _LIBCPP_STD_VER > 14 && defined(__cpp_inline_variables) && (__cpp_inline_variables >= 201606L) 1090# define _LIBCPP_INLINE_VAR inline 1091#else 1092# define _LIBCPP_INLINE_VAR 1093#endif 1094 1095#ifdef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1096# define _LIBCPP_EXPLICIT_MOVE(x) _VSTD::move(x) 1097#else 1098# define _LIBCPP_EXPLICIT_MOVE(x) (x) 1099#endif 1100 1101#ifndef _LIBCPP_CONSTEXPR_IF_NODEBUG 1102#if defined(_LIBCPP_DEBUG) || defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR) 1103#define _LIBCPP_CONSTEXPR_IF_NODEBUG 1104#else 1105#define _LIBCPP_CONSTEXPR_IF_NODEBUG constexpr 1106#endif 1107#endif 1108 1109#if __has_attribute(no_destroy) 1110# define _LIBCPP_NO_DESTROY __attribute__((__no_destroy__)) 1111#else 1112# define _LIBCPP_NO_DESTROY 1113#endif 1114 1115#ifndef _LIBCPP_HAS_NO_ASAN 1116_LIBCPP_FUNC_VIS extern "C" void __sanitizer_annotate_contiguous_container( 1117 const void *, const void *, const void *, const void *); 1118#endif 1119 1120// Try to find out if RTTI is disabled. 1121#if defined(_LIBCPP_COMPILER_CLANG) && !__has_feature(cxx_rtti) 1122# define _LIBCPP_NO_RTTI 1123#elif defined(__GNUC__) && !defined(__GXX_RTTI) 1124# define _LIBCPP_NO_RTTI 1125#elif defined(_LIBCPP_COMPILER_MSVC) && !defined(_CPPRTTI) 1126# define _LIBCPP_NO_RTTI 1127#endif 1128 1129#ifndef _LIBCPP_WEAK 1130#define _LIBCPP_WEAK __attribute__((__weak__)) 1131#endif 1132 1133// Thread API 1134#if !defined(_LIBCPP_HAS_NO_THREADS) && \ 1135 !defined(_LIBCPP_HAS_THREAD_API_PTHREAD) && \ 1136 !defined(_LIBCPP_HAS_THREAD_API_WIN32) && \ 1137 !defined(_LIBCPP_HAS_THREAD_API_EXTERNAL) 1138# if defined(__FreeBSD__) || \ 1139 defined(__wasi__) || \ 1140 defined(__NetBSD__) || \ 1141 defined(__linux__) || \ 1142 defined(__GNU__) || \ 1143 defined(__APPLE__) || \ 1144 defined(__CloudABI__) || \ 1145 defined(__sun__) || \ 1146 (defined(__MINGW32__) && __has_include(<pthread.h>)) || \ 1147 defined(__OpenBSD__) 1148# define _LIBCPP_HAS_THREAD_API_PTHREAD 1149# elif defined(__Fuchsia__) 1150 // TODO(44575): Switch to C11 thread API when possible. 1151# define _LIBCPP_HAS_THREAD_API_PTHREAD 1152# elif defined(_LIBCPP_WIN32API) 1153# define _LIBCPP_HAS_THREAD_API_WIN32 1154# else 1155# error "No thread API" 1156# endif // _LIBCPP_HAS_THREAD_API 1157#endif // _LIBCPP_HAS_NO_THREADS 1158 1159#if defined(_LIBCPP_HAS_THREAD_API_PTHREAD) 1160#if defined(__ANDROID__) && __ANDROID_API__ >= 30 1161#define _LIBCPP_HAS_COND_CLOCKWAIT 1162#elif defined(_LIBCPP_GLIBC_PREREQ) 1163#if _LIBCPP_GLIBC_PREREQ(2, 30) 1164#define _LIBCPP_HAS_COND_CLOCKWAIT 1165#endif 1166#endif 1167#endif 1168 1169#if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_PTHREAD) 1170#error _LIBCPP_HAS_THREAD_API_PTHREAD may only be defined when \ 1171 _LIBCPP_HAS_NO_THREADS is not defined. 1172#endif 1173 1174#if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_EXTERNAL) 1175#error _LIBCPP_HAS_THREAD_API_EXTERNAL may not be defined when \ 1176 _LIBCPP_HAS_NO_THREADS is defined. 1177#endif 1178 1179#if defined(_LIBCPP_HAS_NO_MONOTONIC_CLOCK) && !defined(_LIBCPP_HAS_NO_THREADS) 1180#error _LIBCPP_HAS_NO_MONOTONIC_CLOCK may only be defined when \ 1181 _LIBCPP_HAS_NO_THREADS is defined. 1182#endif 1183 1184#if defined(__STDCPP_THREADS__) && defined(_LIBCPP_HAS_NO_THREADS) 1185#error _LIBCPP_HAS_NO_THREADS cannot be set when __STDCPP_THREADS__ is set. 1186#endif 1187 1188#if !defined(_LIBCPP_HAS_NO_THREADS) && !defined(__STDCPP_THREADS__) 1189#define __STDCPP_THREADS__ 1 1190#endif 1191 1192// The glibc and Bionic implementation of pthreads implements 1193// pthread_mutex_destroy as nop for regular mutexes. Additionally, Win32 1194// mutexes have no destroy mechanism. 1195// 1196// This optimization can't be performed on Apple platforms, where 1197// pthread_mutex_destroy can allow the kernel to release resources. 1198// See https://llvm.org/D64298 for details. 1199// 1200// TODO(EricWF): Enable this optimization on Bionic after speaking to their 1201// respective stakeholders. 1202#if (defined(_LIBCPP_HAS_THREAD_API_PTHREAD) && defined(__GLIBC__)) \ 1203 || (defined(_LIBCPP_HAS_THREAD_API_C11) && defined(__Fuchsia__)) \ 1204 || defined(_LIBCPP_HAS_THREAD_API_WIN32) 1205# define _LIBCPP_HAS_TRIVIAL_MUTEX_DESTRUCTION 1206#endif 1207 1208// Destroying a condvar is a nop on Windows. 1209// 1210// This optimization can't be performed on Apple platforms, where 1211// pthread_cond_destroy can allow the kernel to release resources. 1212// See https://llvm.org/D64298 for details. 1213// 1214// TODO(EricWF): This is potentially true for some pthread implementations 1215// as well. 1216#if (defined(_LIBCPP_HAS_THREAD_API_C11) && defined(__Fuchsia__)) || \ 1217 defined(_LIBCPP_HAS_THREAD_API_WIN32) 1218# define _LIBCPP_HAS_TRIVIAL_CONDVAR_DESTRUCTION 1219#endif 1220 1221// Systems that use capability-based security (FreeBSD with Capsicum, 1222// Nuxi CloudABI) may only provide local filesystem access (using *at()). 1223// Functions like open(), rename(), unlink() and stat() should not be 1224// used, as they attempt to access the global filesystem namespace. 1225#ifdef __CloudABI__ 1226#define _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE 1227#endif 1228 1229// CloudABI is intended for running networked services. Processes do not 1230// have standard input and output channels. 1231#ifdef __CloudABI__ 1232#define _LIBCPP_HAS_NO_STDIN 1233#define _LIBCPP_HAS_NO_STDOUT 1234#endif 1235 1236// Some systems do not provide gets() in their C library, for security reasons. 1237#ifndef _LIBCPP_C_HAS_NO_GETS 1238# if defined(_LIBCPP_MSVCRT) || defined(__OpenBSD__) || \ 1239 (defined(__FreeBSD_version) && __FreeBSD_version >= 1300043) 1240# define _LIBCPP_C_HAS_NO_GETS 1241# endif 1242#endif 1243 1244#if defined(__BIONIC__) || defined(__CloudABI__) || defined(__OpenBSD__) || \ 1245 defined(__Fuchsia__) || defined(__wasi__) || defined(_LIBCPP_HAS_MUSL_LIBC) 1246#define _LIBCPP_PROVIDES_DEFAULT_RUNE_TABLE 1247#endif 1248 1249// Thread-unsafe functions such as strtok() and localtime() 1250// are not available. 1251#ifdef __CloudABI__ 1252#define _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS 1253#endif 1254 1255#if __has_feature(cxx_atomic) || __has_extension(c_atomic) || __has_keyword(_Atomic) 1256# define _LIBCPP_HAS_C_ATOMIC_IMP 1257#elif defined(_LIBCPP_COMPILER_GCC) 1258# define _LIBCPP_HAS_GCC_ATOMIC_IMP 1259#endif 1260 1261#if (!defined(_LIBCPP_HAS_C_ATOMIC_IMP) && \ 1262 !defined(_LIBCPP_HAS_GCC_ATOMIC_IMP) && \ 1263 !defined(_LIBCPP_HAS_EXTERNAL_ATOMIC_IMP)) \ 1264 || defined(_LIBCPP_HAS_NO_THREADS) 1265# define _LIBCPP_HAS_NO_ATOMIC_HEADER 1266#else 1267# ifndef _LIBCPP_ATOMIC_FLAG_TYPE 1268# define _LIBCPP_ATOMIC_FLAG_TYPE bool 1269# endif 1270# ifdef _LIBCPP_FREESTANDING 1271# define _LIBCPP_ATOMIC_ONLY_USE_BUILTINS 1272# endif 1273#endif 1274 1275#ifndef _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK 1276#define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK 1277#endif 1278 1279#if defined(_LIBCPP_ENABLE_THREAD_SAFETY_ANNOTATIONS) 1280# if defined(__clang__) && __has_attribute(acquire_capability) 1281// Work around the attribute handling in clang. When both __declspec and 1282// __attribute__ are present, the processing goes awry preventing the definition 1283// of the types. 1284# if !defined(_LIBCPP_OBJECT_FORMAT_COFF) 1285# define _LIBCPP_HAS_THREAD_SAFETY_ANNOTATIONS 1286# endif 1287# endif 1288#endif 1289 1290#ifndef _LIBCPP_THREAD_SAFETY_ANNOTATION 1291# ifdef _LIBCPP_HAS_THREAD_SAFETY_ANNOTATIONS 1292# define _LIBCPP_THREAD_SAFETY_ANNOTATION(x) __attribute__((x)) 1293# else 1294# define _LIBCPP_THREAD_SAFETY_ANNOTATION(x) 1295# endif 1296#endif // _LIBCPP_THREAD_SAFETY_ANNOTATION 1297 1298#if __has_attribute(require_constant_initialization) 1299# define _LIBCPP_SAFE_STATIC __attribute__((__require_constant_initialization__)) 1300#else 1301# define _LIBCPP_SAFE_STATIC 1302#endif 1303 1304#if !__has_builtin(__builtin_addressof) && _GNUC_VER < 700 1305#define _LIBCPP_HAS_NO_BUILTIN_ADDRESSOF 1306#endif 1307 1308#if !__has_builtin(__builtin_is_constant_evaluated) && _GNUC_VER < 900 1309#define _LIBCPP_HAS_NO_BUILTIN_IS_CONSTANT_EVALUATED 1310#endif 1311 1312#if !defined(_LIBCPP_HAS_NO_OFF_T_FUNCTIONS) 1313# if defined(_LIBCPP_MSVCRT) || defined(_NEWLIB_VERSION) 1314# define _LIBCPP_HAS_NO_OFF_T_FUNCTIONS 1315# endif 1316#endif 1317 1318#if __has_attribute(diagnose_if) && !defined(_LIBCPP_DISABLE_ADDITIONAL_DIAGNOSTICS) 1319# define _LIBCPP_DIAGNOSE_WARNING(...) \ 1320 __attribute__((diagnose_if(__VA_ARGS__, "warning"))) 1321# define _LIBCPP_DIAGNOSE_ERROR(...) \ 1322 __attribute__((diagnose_if(__VA_ARGS__, "error"))) 1323#else 1324# define _LIBCPP_DIAGNOSE_WARNING(...) 1325# define _LIBCPP_DIAGNOSE_ERROR(...) 1326#endif 1327 1328// Use a function like macro to imply that it must be followed by a semicolon 1329#if __cplusplus > 201402L && __has_cpp_attribute(fallthrough) 1330# define _LIBCPP_FALLTHROUGH() [[fallthrough]] 1331#elif __has_cpp_attribute(clang::fallthrough) 1332# define _LIBCPP_FALLTHROUGH() [[clang::fallthrough]] 1333#elif __has_attribute(fallthrough) || _GNUC_VER >= 700 1334# define _LIBCPP_FALLTHROUGH() __attribute__((__fallthrough__)) 1335#else 1336# define _LIBCPP_FALLTHROUGH() ((void)0) 1337#endif 1338 1339#if __has_attribute(__nodebug__) 1340#define _LIBCPP_NODEBUG __attribute__((__nodebug__)) 1341#else 1342#define _LIBCPP_NODEBUG 1343#endif 1344 1345#ifndef _LIBCPP_NODEBUG_TYPE 1346#if __has_attribute(__nodebug__) && \ 1347 (defined(_LIBCPP_CLANG_VER) && _LIBCPP_CLANG_VER >= 900) 1348#define _LIBCPP_NODEBUG_TYPE __attribute__((nodebug)) 1349#else 1350#define _LIBCPP_NODEBUG_TYPE 1351#endif 1352#endif // !defined(_LIBCPP_NODEBUG_TYPE) 1353 1354#if defined(_LIBCPP_ABI_MICROSOFT) && \ 1355 (defined(_LIBCPP_COMPILER_MSVC) || __has_declspec_attribute(empty_bases)) 1356# define _LIBCPP_DECLSPEC_EMPTY_BASES __declspec(empty_bases) 1357#else 1358# define _LIBCPP_DECLSPEC_EMPTY_BASES 1359#endif 1360 1361#if defined(_LIBCPP_ENABLE_CXX17_REMOVED_FEATURES) 1362#define _LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR 1363#define _LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS 1364#define _LIBCPP_ENABLE_CXX17_REMOVED_RANDOM_SHUFFLE 1365#define _LIBCPP_ENABLE_CXX17_REMOVED_BINDERS 1366#endif // _LIBCPP_ENABLE_CXX17_REMOVED_FEATURES 1367 1368#if !defined(__cpp_deduction_guides) || __cpp_deduction_guides < 201611 1369#define _LIBCPP_HAS_NO_DEDUCTION_GUIDES 1370#endif 1371 1372#if !__has_keyword(__is_aggregate) && (_GNUC_VER_NEW < 7001) 1373#define _LIBCPP_HAS_NO_IS_AGGREGATE 1374#endif 1375 1376#if !defined(__cpp_coroutines) || __cpp_coroutines < 201703L 1377#define _LIBCPP_HAS_NO_COROUTINES 1378#endif 1379 1380#if !defined(__cpp_impl_three_way_comparison) || __cpp_impl_three_way_comparison < 201907L 1381#define _LIBCPP_HAS_NO_SPACESHIP_OPERATOR 1382#endif 1383 1384// Decide whether to use availability macros. 1385#if !defined(_LIBCPP_BUILDING_LIBRARY) && \ 1386 !defined(_LIBCXXABI_BUILDING_LIBRARY) && \ 1387 !defined(_LIBCPP_DISABLE_AVAILABILITY) && \ 1388 __has_feature(attribute_availability_with_strict) && \ 1389 __has_feature(attribute_availability_in_templates) && \ 1390 __has_extension(pragma_clang_attribute_external_declaration) 1391# ifdef __APPLE__ 1392# define _LIBCPP_USE_AVAILABILITY_APPLE 1393# endif 1394#endif 1395 1396// Define availability macros. 1397#if defined(_LIBCPP_USE_AVAILABILITY_APPLE) 1398# define _LIBCPP_AVAILABILITY_SHARED_MUTEX \ 1399 __attribute__((availability(macosx,strict,introduced=10.12))) \ 1400 __attribute__((availability(ios,strict,introduced=10.0))) \ 1401 __attribute__((availability(tvos,strict,introduced=10.0))) \ 1402 __attribute__((availability(watchos,strict,introduced=3.0))) 1403# define _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS \ 1404 __attribute__((availability(macosx,strict,introduced=10.13))) \ 1405 __attribute__((availability(ios,strict,introduced=11.0))) \ 1406 __attribute__((availability(tvos,strict,introduced=11.0))) \ 1407 __attribute__((availability(watchos,strict,introduced=4.0))) 1408# define _LIBCPP_AVAILABILITY_BAD_VARIANT_ACCESS \ 1409 _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS 1410# define _LIBCPP_AVAILABILITY_BAD_ANY_CAST \ 1411 _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS 1412# define _LIBCPP_AVAILABILITY_UNCAUGHT_EXCEPTIONS \ 1413 __attribute__((availability(macosx,strict,introduced=10.12))) \ 1414 __attribute__((availability(ios,strict,introduced=10.0))) \ 1415 __attribute__((availability(tvos,strict,introduced=10.0))) \ 1416 __attribute__((availability(watchos,strict,introduced=3.0))) 1417# define _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE \ 1418 __attribute__((availability(macosx,strict,introduced=10.12))) \ 1419 __attribute__((availability(ios,strict,introduced=10.0))) \ 1420 __attribute__((availability(tvos,strict,introduced=10.0))) \ 1421 __attribute__((availability(watchos,strict,introduced=3.0))) 1422# define _LIBCPP_AVAILABILITY_FUTURE_ERROR \ 1423 __attribute__((availability(ios,strict,introduced=6.0))) 1424# define _LIBCPP_AVAILABILITY_TYPEINFO_VTABLE \ 1425 __attribute__((availability(macosx,strict,introduced=10.9))) \ 1426 __attribute__((availability(ios,strict,introduced=7.0))) 1427# define _LIBCPP_AVAILABILITY_LOCALE_CATEGORY \ 1428 __attribute__((availability(macosx,strict,introduced=10.9))) \ 1429 __attribute__((availability(ios,strict,introduced=7.0))) 1430# define _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR \ 1431 __attribute__((availability(macosx,strict,introduced=10.9))) \ 1432 __attribute__((availability(ios,strict,introduced=7.0))) 1433# define _LIBCPP_AVAILABILITY_FILESYSTEM \ 1434 __attribute__((availability(macosx,strict,introduced=10.15))) \ 1435 __attribute__((availability(ios,strict,introduced=13.0))) \ 1436 __attribute__((availability(tvos,strict,introduced=13.0))) \ 1437 __attribute__((availability(watchos,strict,introduced=6.0))) 1438# define _LIBCPP_AVAILABILITY_FILESYSTEM_PUSH \ 1439 _Pragma("clang attribute push(__attribute__((availability(macosx,strict,introduced=10.15))), apply_to=any(function,record))") \ 1440 _Pragma("clang attribute push(__attribute__((availability(ios,strict,introduced=13.0))), apply_to=any(function,record))") \ 1441 _Pragma("clang attribute push(__attribute__((availability(tvos,strict,introduced=13.0))), apply_to=any(function,record))") \ 1442 _Pragma("clang attribute push(__attribute__((availability(watchos,strict,introduced=6.0))), apply_to=any(function,record))") 1443# define _LIBCPP_AVAILABILITY_FILESYSTEM_POP \ 1444 _Pragma("clang attribute pop") \ 1445 _Pragma("clang attribute pop") \ 1446 _Pragma("clang attribute pop") \ 1447 _Pragma("clang attribute pop") 1448# define _LIBCPP_AVAILABILITY_TO_CHARS \ 1449 _LIBCPP_AVAILABILITY_FILESYSTEM 1450# define _LIBCPP_AVAILABILITY_SYNC \ 1451 __attribute__((unavailable)) 1452#else 1453# define _LIBCPP_AVAILABILITY_SHARED_MUTEX 1454# define _LIBCPP_AVAILABILITY_BAD_VARIANT_ACCESS 1455# define _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS 1456# define _LIBCPP_AVAILABILITY_BAD_ANY_CAST 1457# define _LIBCPP_AVAILABILITY_UNCAUGHT_EXCEPTIONS 1458# define _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE 1459# define _LIBCPP_AVAILABILITY_FUTURE_ERROR 1460# define _LIBCPP_AVAILABILITY_TYPEINFO_VTABLE 1461# define _LIBCPP_AVAILABILITY_LOCALE_CATEGORY 1462# define _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR 1463# define _LIBCPP_AVAILABILITY_FILESYSTEM 1464# define _LIBCPP_AVAILABILITY_FILESYSTEM_PUSH 1465# define _LIBCPP_AVAILABILITY_FILESYSTEM_POP 1466# define _LIBCPP_AVAILABILITY_TO_CHARS 1467# define _LIBCPP_AVAILABILITY_SYNC 1468#endif 1469 1470// Define availability that depends on _LIBCPP_NO_EXCEPTIONS. 1471#ifdef _LIBCPP_NO_EXCEPTIONS 1472# define _LIBCPP_AVAILABILITY_FUTURE 1473# define _LIBCPP_AVAILABILITY_THROW_BAD_ANY_CAST 1474# define _LIBCPP_AVAILABILITY_THROW_BAD_OPTIONAL_ACCESS 1475# define _LIBCPP_AVAILABILITY_THROW_BAD_VARIANT_ACCESS 1476#else 1477# define _LIBCPP_AVAILABILITY_FUTURE _LIBCPP_AVAILABILITY_FUTURE_ERROR 1478# define _LIBCPP_AVAILABILITY_THROW_BAD_ANY_CAST _LIBCPP_AVAILABILITY_BAD_ANY_CAST 1479# define _LIBCPP_AVAILABILITY_THROW_BAD_OPTIONAL_ACCESS _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS 1480# define _LIBCPP_AVAILABILITY_THROW_BAD_VARIANT_ACCESS _LIBCPP_AVAILABILITY_BAD_VARIANT_ACCESS 1481#endif 1482 1483// The stream API was dropped and re-added in the dylib shipped on macOS 1484// and iOS. We can only assume the dylib to provide these definitions for 1485// macosx >= 10.9 and ios >= 7.0. Otherwise, the definitions are available 1486// from the headers, but not from the dylib. Explicit instantiation 1487// declarations for streams exist conditionally to this; if we provide 1488// an explicit instantiation declaration and we try to deploy to a dylib 1489// that does not provide those symbols, we'll get a load-time error. 1490#if !defined(_LIBCPP_BUILDING_LIBRARY) && \ 1491 ((defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && \ 1492 __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 1090) || \ 1493 (defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) && \ 1494 __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ < 70000)) 1495# define _LIBCPP_DO_NOT_ASSUME_STREAMS_EXPLICIT_INSTANTIATION_IN_DYLIB 1496#endif 1497 1498#if defined(_LIBCPP_COMPILER_IBM) 1499#define _LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO 1500#endif 1501 1502#if defined(_LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO) 1503# define _LIBCPP_PUSH_MACROS 1504# define _LIBCPP_POP_MACROS 1505#else 1506 // Don't warn about macro conflicts when we can restore them at the 1507 // end of the header. 1508# ifndef _LIBCPP_DISABLE_MACRO_CONFLICT_WARNINGS 1509# define _LIBCPP_DISABLE_MACRO_CONFLICT_WARNINGS 1510# endif 1511# if defined(_LIBCPP_COMPILER_MSVC) 1512# define _LIBCPP_PUSH_MACROS \ 1513 __pragma(push_macro("min")) \ 1514 __pragma(push_macro("max")) 1515# define _LIBCPP_POP_MACROS \ 1516 __pragma(pop_macro("min")) \ 1517 __pragma(pop_macro("max")) 1518# else 1519# define _LIBCPP_PUSH_MACROS \ 1520 _Pragma("push_macro(\"min\")") \ 1521 _Pragma("push_macro(\"max\")") 1522# define _LIBCPP_POP_MACROS \ 1523 _Pragma("pop_macro(\"min\")") \ 1524 _Pragma("pop_macro(\"max\")") 1525# endif 1526#endif // defined(_LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO) 1527 1528#ifndef _LIBCPP_NO_AUTO_LINK 1529# if defined(_LIBCPP_ABI_MICROSOFT) && !defined(_LIBCPP_BUILDING_LIBRARY) 1530# if defined(_DLL) 1531# pragma comment(lib, "c++.lib") 1532# else 1533# pragma comment(lib, "libc++.lib") 1534# endif 1535# endif // defined(_LIBCPP_ABI_MICROSOFT) && !defined(_LIBCPP_BUILDING_LIBRARY) 1536#endif // _LIBCPP_NO_AUTO_LINK 1537 1538#define _LIBCPP_UNUSED_VAR(x) ((void)(x)) 1539 1540// Configures the fopen close-on-exec mode character, if any. This string will 1541// be appended to any mode string used by fstream for fopen/fdopen. 1542// 1543// Not all platforms support this, but it helps avoid fd-leaks on platforms that 1544// do. 1545#if defined(__BIONIC__) 1546# define _LIBCPP_FOPEN_CLOEXEC_MODE "e" 1547#else 1548# define _LIBCPP_FOPEN_CLOEXEC_MODE 1549#endif 1550 1551#ifdef _LIBCPP_COMPILER_HAS_BUILTIN_CONSTANT_P 1552#define _LIBCPP_BUILTIN_CONSTANT_P(x) __builtin_constant_p(x) 1553#else 1554#define _LIBCPP_BUILTIN_CONSTANT_P(x) false 1555#endif 1556 1557// Support for _FILE_OFFSET_BITS=64 landed gradually in Android, so the full set 1558// of functions used in cstdio may not be available for low API levels when 1559// using 64-bit file offsets on LP32. 1560#if defined(__BIONIC__) && defined(__USE_FILE_OFFSET64) && __ANDROID_API__ < 24 1561#define _LIBCPP_HAS_NO_FGETPOS_FSETPOS 1562#endif 1563 1564#endif // __cplusplus 1565 1566#endif // _LIBCPP_CONFIG 1567