1// -*- C++ -*- 2//===--------------------------- __config ---------------------------------===// 3// 4// The LLVM Compiler Infrastructure 5// 6// This file is dual licensed under the MIT and the University of Illinois Open 7// Source Licenses. See LICENSE.TXT for details. 8// 9//===----------------------------------------------------------------------===// 10 11#ifndef _LIBCPP_CONFIG 12#define _LIBCPP_CONFIG 13 14#if defined(_MSC_VER) && !defined(__clang__) 15#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 16#define _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER 17#endif 18#endif 19 20#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER 21#pragma GCC system_header 22#endif 23 24#ifdef __cplusplus 25 26#ifdef __GNUC__ 27#define _GNUC_VER (__GNUC__ * 100 + __GNUC_MINOR__) 28// The _GNUC_VER_NEW macro better represents the new GCC versioning scheme 29// introduced in GCC 5.0. 30#define _GNUC_VER_NEW (_GNUC_VER * 10 + __GNUC_PATCHLEVEL__) 31#else 32#define _GNUC_VER 0 33#define _GNUC_VER_NEW 0 34#endif 35 36#define _LIBCPP_VERSION 5000 37 38#ifndef _LIBCPP_ABI_VERSION 39#define _LIBCPP_ABI_VERSION 1 40#endif 41 42#if defined(__ELF__) 43#define _LIBCPP_OBJECT_FORMAT_ELF 1 44#elif defined(__MACH__) 45#define _LIBCPP_OBJECT_FORMAT_MACHO 1 46#elif defined(_WIN32) 47#define _LIBCPP_OBJECT_FORMAT_COFF 1 48#else 49#error Unknown object file format 50#endif 51 52#if defined(_LIBCPP_ABI_UNSTABLE) || _LIBCPP_ABI_VERSION >= 2 53// Change short string representation so that string data starts at offset 0, 54// improving its alignment in some cases. 55#define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT 56// Fix deque iterator type in order to support incomplete types. 57#define _LIBCPP_ABI_INCOMPLETE_TYPES_IN_DEQUE 58// Fix undefined behavior in how std::list stores it's linked nodes. 59#define _LIBCPP_ABI_LIST_REMOVE_NODE_POINTER_UB 60// Fix undefined behavior in how __tree stores its end and parent nodes. 61#define _LIBCPP_ABI_TREE_REMOVE_NODE_POINTER_UB 62// Fix undefined behavior in how __hash_table stores it's pointer types 63#define _LIBCPP_ABI_FIX_UNORDERED_NODE_POINTER_UB 64#define _LIBCPP_ABI_FORWARD_LIST_REMOVE_NODE_POINTER_UB 65#define _LIBCPP_ABI_FIX_UNORDERED_CONTAINER_SIZE_TYPE 66// Don't use a nullptr_t simulation type in C++03 instead using C++11 nullptr 67// provided under the alternate keyword __nullptr, which changes the mangling 68// of nullptr_t. This option is ABI incompatible with GCC in C++03 mode. 69#define _LIBCPP_ABI_ALWAYS_USE_CXX11_NULLPTR 70// Define the `pointer_safety` enum as a C++11 strongly typed enumeration 71// instead of as a class simulating an enum. If this option is enabled 72// `pointer_safety` and `get_pointer_safety()` will no longer be available 73// in C++03. 74#define _LIBCPP_ABI_POINTER_SAFETY_ENUM_TYPE 75// Define a key function for `bad_function_call` in the library, to centralize 76// its vtable and typeinfo to libc++ rather than having all other libraries 77// using that class define their own copies. 78#define _LIBCPP_ABI_BAD_FUNCTION_CALL_KEY_FUNCTION 79 80// Enable optimized version of __do_get_(un)signed which avoids redundant copies. 81#define _LIBCPP_ABI_OPTIMIZED_LOCALE_NUM_GET 82#elif _LIBCPP_ABI_VERSION == 1 83#if !defined(_LIBCPP_OBJECT_FORMAT_COFF) 84// Enable compiling copies of now inline methods into the dylib to support 85// applications compiled against older libraries. This is unnecessary with 86// COFF dllexport semantics, since dllexport forces a non-inline definition 87// of inline functions to be emitted anyway. Our own non-inline copy would 88// conflict with the dllexport-emitted copy, so we disable it. 89#define _LIBCPP_DEPRECATED_ABI_LEGACY_LIBRARY_DEFINITIONS_FOR_INLINE_FUNCTIONS 90#endif 91// Feature macros for disabling pre ABI v1 features. All of these options 92// are deprecated. 93#if defined(__FreeBSD__) 94#define _LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR 95#endif 96#endif 97 98#ifdef _LIBCPP_TRIVIAL_PAIR_COPY_CTOR 99#error "_LIBCPP_TRIVIAL_PAIR_COPY_CTOR" is no longer supported. \ 100 use _LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR instead 101#endif 102 103#define _LIBCPP_CONCAT1(_LIBCPP_X,_LIBCPP_Y) _LIBCPP_X##_LIBCPP_Y 104#define _LIBCPP_CONCAT(_LIBCPP_X,_LIBCPP_Y) _LIBCPP_CONCAT1(_LIBCPP_X,_LIBCPP_Y) 105 106#define _LIBCPP_NAMESPACE _LIBCPP_CONCAT(__,_LIBCPP_ABI_VERSION) 107 108#if __cplusplus < 201103L 109#define _LIBCPP_CXX03_LANG 110#endif 111 112#ifndef __has_attribute 113#define __has_attribute(__x) 0 114#endif 115#ifndef __has_builtin 116#define __has_builtin(__x) 0 117#endif 118#ifndef __has_extension 119#define __has_extension(__x) 0 120#endif 121#ifndef __has_feature 122#define __has_feature(__x) 0 123#endif 124// '__is_identifier' returns '0' if '__x' is a reserved identifier provided by 125// the compiler and '1' otherwise. 126#ifndef __is_identifier 127#define __is_identifier(__x) 1 128#endif 129#ifndef __has_declspec_attribute 130#define __has_declspec_attribute(__x) 0 131#endif 132 133#define __has_keyword(__x) !(__is_identifier(__x)) 134 135#ifdef __has_include 136#define __libcpp_has_include(__x) __has_include(__x) 137#else 138#define __libcpp_has_include(__x) 0 139#endif 140 141#if defined(__clang__) 142#define _LIBCPP_COMPILER_CLANG 143# ifndef __apple_build_version__ 144# define _LIBCPP_CLANG_VER (__clang_major__ * 100 + __clang_minor__) 145# endif 146#elif defined(__GNUC__) 147#define _LIBCPP_COMPILER_GCC 148#elif defined(_MSC_VER) 149#define _LIBCPP_COMPILER_MSVC 150#elif defined(__IBMCPP__) 151#define _LIBCPP_COMPILER_IBM 152#endif 153 154#ifndef _LIBCPP_CLANG_VER 155#define _LIBCPP_CLANG_VER 0 156#endif 157 158// FIXME: ABI detection should be done via compiler builtin macros. This 159// is just a placeholder until Clang implements such macros. For now assume 160// that Windows compilers pretending to be MSVC++ target the microsoft ABI. 161#if defined(_WIN32) && defined(_MSC_VER) 162# define _LIBCPP_ABI_MICROSOFT 163#else 164# define _LIBCPP_ABI_ITANIUM 165#endif 166 167// Need to detect which libc we're using if we're on Linux. 168#if defined(__linux__) 169#include <features.h> 170#if !defined(__GLIBC_PREREQ) 171#define __GLIBC_PREREQ(a, b) 0 172#endif // !defined(__GLIBC_PREREQ) 173#endif // defined(__linux__) 174 175#ifdef __LITTLE_ENDIAN__ 176#if __LITTLE_ENDIAN__ 177#define _LIBCPP_LITTLE_ENDIAN 1 178#define _LIBCPP_BIG_ENDIAN 0 179#endif // __LITTLE_ENDIAN__ 180#endif // __LITTLE_ENDIAN__ 181 182#ifdef __BIG_ENDIAN__ 183#if __BIG_ENDIAN__ 184#define _LIBCPP_LITTLE_ENDIAN 0 185#define _LIBCPP_BIG_ENDIAN 1 186#endif // __BIG_ENDIAN__ 187#endif // __BIG_ENDIAN__ 188 189#ifdef __BYTE_ORDER__ 190#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 191#define _LIBCPP_LITTLE_ENDIAN 1 192#define _LIBCPP_BIG_ENDIAN 0 193#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 194#define _LIBCPP_LITTLE_ENDIAN 0 195#define _LIBCPP_BIG_ENDIAN 1 196#endif // __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 197#endif // __BYTE_ORDER__ 198 199#ifdef __FreeBSD__ 200# include <sys/endian.h> 201# if _BYTE_ORDER == _LITTLE_ENDIAN 202# define _LIBCPP_LITTLE_ENDIAN 1 203# define _LIBCPP_BIG_ENDIAN 0 204# else // _BYTE_ORDER == _LITTLE_ENDIAN 205# define _LIBCPP_LITTLE_ENDIAN 0 206# define _LIBCPP_BIG_ENDIAN 1 207# endif // _BYTE_ORDER == _LITTLE_ENDIAN 208# ifndef __LONG_LONG_SUPPORTED 209# define _LIBCPP_HAS_NO_LONG_LONG 210# endif // __LONG_LONG_SUPPORTED 211#endif // __FreeBSD__ 212 213#ifdef __NetBSD__ 214# include <sys/endian.h> 215# if _BYTE_ORDER == _LITTLE_ENDIAN 216# define _LIBCPP_LITTLE_ENDIAN 1 217# define _LIBCPP_BIG_ENDIAN 0 218# else // _BYTE_ORDER == _LITTLE_ENDIAN 219# define _LIBCPP_LITTLE_ENDIAN 0 220# define _LIBCPP_BIG_ENDIAN 1 221# endif // _BYTE_ORDER == _LITTLE_ENDIAN 222# define _LIBCPP_HAS_QUICK_EXIT 223#endif // __NetBSD__ 224 225#if defined(_WIN32) 226# define _LIBCPP_WIN32API 227# define _LIBCPP_LITTLE_ENDIAN 1 228# define _LIBCPP_BIG_ENDIAN 0 229# define _LIBCPP_SHORT_WCHAR 1 230// Both MinGW and native MSVC provide a "MSVC"-like enviroment 231# define _LIBCPP_MSVCRT_LIKE 232// If mingw not explicitly detected, assume using MS C runtime only. 233# ifndef __MINGW32__ 234# define _LIBCPP_MSVCRT // Using Microsoft's C Runtime library 235# endif 236# if (defined(_M_AMD64) || defined(__x86_64__)) || (defined(_M_ARM) || defined(__arm__)) 237# define _LIBCPP_HAS_BITSCAN64 238# endif 239# if defined(_LIBCPP_MSVCRT) 240# define _LIBCPP_HAS_QUICK_EXIT 241# endif 242 243// Some CRT APIs are unavailable to store apps 244#if defined(WINAPI_FAMILY) 245#include <winapifamily.h> 246#if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) && \ 247 (!defined(WINAPI_PARTITION_SYSTEM) || \ 248 !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_SYSTEM)) 249#define _LIBCPP_WINDOWS_STORE_APP 250#endif 251#endif 252#endif // defined(_WIN32) 253 254#ifdef __sun__ 255# include <sys/isa_defs.h> 256# ifdef _LITTLE_ENDIAN 257# define _LIBCPP_LITTLE_ENDIAN 1 258# define _LIBCPP_BIG_ENDIAN 0 259# else 260# define _LIBCPP_LITTLE_ENDIAN 0 261# define _LIBCPP_BIG_ENDIAN 1 262# endif 263#endif // __sun__ 264 265#if defined(__CloudABI__) 266 // Certain architectures provide arc4random(). Prefer using 267 // arc4random() over /dev/{u,}random to make it possible to obtain 268 // random data even when using sandboxing mechanisms such as chroots, 269 // Capsicum, etc. 270# define _LIBCPP_USING_ARC4_RANDOM 271#elif defined(__native_client__) 272 // NaCl's sandbox (which PNaCl also runs in) doesn't allow filesystem access, 273 // including accesses to the special files under /dev. C++11's 274 // std::random_device is instead exposed through a NaCl syscall. 275# define _LIBCPP_USING_NACL_RANDOM 276#elif defined(_LIBCPP_WIN32API) 277# define _LIBCPP_USING_WIN32_RANDOM 278#else 279# define _LIBCPP_USING_DEV_RANDOM 280#endif 281 282#if !defined(_LIBCPP_LITTLE_ENDIAN) || !defined(_LIBCPP_BIG_ENDIAN) 283# include <endian.h> 284# if __BYTE_ORDER == __LITTLE_ENDIAN 285# define _LIBCPP_LITTLE_ENDIAN 1 286# define _LIBCPP_BIG_ENDIAN 0 287# elif __BYTE_ORDER == __BIG_ENDIAN 288# define _LIBCPP_LITTLE_ENDIAN 0 289# define _LIBCPP_BIG_ENDIAN 1 290# else // __BYTE_ORDER == __BIG_ENDIAN 291# error unable to determine endian 292# endif 293#endif // !defined(_LIBCPP_LITTLE_ENDIAN) || !defined(_LIBCPP_BIG_ENDIAN) 294 295#if __has_attribute(__no_sanitize__) && !defined(_LIBCPP_COMPILER_GCC) 296#define _LIBCPP_NO_CFI __attribute__((__no_sanitize__("cfi"))) 297#else 298#define _LIBCPP_NO_CFI 299#endif 300 301#if defined(_LIBCPP_COMPILER_CLANG) 302 303// _LIBCPP_ALTERNATE_STRING_LAYOUT is an old name for 304// _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT left here for backward compatibility. 305#if (defined(__APPLE__) && !defined(__i386__) && !defined(__x86_64__) && \ 306 (!defined(__arm__) || __ARM_ARCH_7K__ >= 2)) || \ 307 defined(_LIBCPP_ALTERNATE_STRING_LAYOUT) 308#define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT 309#endif 310 311#if __has_feature(cxx_alignas) 312# define _ALIGNAS_TYPE(x) alignas(x) 313# define _ALIGNAS(x) alignas(x) 314#else 315# define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x)))) 316# define _ALIGNAS(x) __attribute__((__aligned__(x))) 317#endif 318 319#if __cplusplus < 201103L 320typedef __char16_t char16_t; 321typedef __char32_t char32_t; 322#endif 323 324#if !(__has_feature(cxx_exceptions)) && !defined(_LIBCPP_NO_EXCEPTIONS) 325#define _LIBCPP_NO_EXCEPTIONS 326#endif 327 328#if !(__has_feature(cxx_rtti)) && !defined(_LIBCPP_NO_RTTI) 329#define _LIBCPP_NO_RTTI 330#endif 331 332#if !(__has_feature(cxx_strong_enums)) 333#define _LIBCPP_HAS_NO_STRONG_ENUMS 334#endif 335 336#if !(__has_feature(cxx_decltype)) 337#define _LIBCPP_HAS_NO_DECLTYPE 338#endif 339 340#if __has_feature(cxx_attributes) 341# define _LIBCPP_NORETURN [[noreturn]] 342#else 343# define _LIBCPP_NORETURN __attribute__ ((noreturn)) 344#endif 345 346#if !(__has_feature(cxx_lambdas)) 347#define _LIBCPP_HAS_NO_LAMBDAS 348#endif 349 350#if !(__has_feature(cxx_nullptr)) 351# if (__has_extension(cxx_nullptr) || __has_keyword(__nullptr)) && defined(_LIBCPP_ABI_ALWAYS_USE_CXX11_NULLPTR) 352# define nullptr __nullptr 353# else 354# define _LIBCPP_HAS_NO_NULLPTR 355# endif 356#endif 357 358#if !(__has_feature(cxx_rvalue_references)) 359#define _LIBCPP_HAS_NO_RVALUE_REFERENCES 360#endif 361 362#if !(__has_feature(cxx_auto_type)) 363#define _LIBCPP_HAS_NO_AUTO_TYPE 364#endif 365 366#if !(__has_feature(cxx_variadic_templates)) 367#define _LIBCPP_HAS_NO_VARIADICS 368#endif 369 370#if !(__has_feature(cxx_generalized_initializers)) 371#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 372#endif 373 374#if __has_feature(is_base_of) 375# define _LIBCPP_HAS_IS_BASE_OF 376#endif 377 378#if __has_feature(is_final) 379# define _LIBCPP_HAS_IS_FINAL 380#endif 381 382// Objective-C++ features (opt-in) 383#if __has_feature(objc_arc) 384#define _LIBCPP_HAS_OBJC_ARC 385#endif 386 387#if __has_feature(objc_arc_weak) 388#define _LIBCPP_HAS_OBJC_ARC_WEAK 389#endif 390 391#if !(__has_feature(cxx_constexpr)) 392#define _LIBCPP_HAS_NO_CONSTEXPR 393#endif 394 395#if !(__has_feature(cxx_relaxed_constexpr)) 396#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR 397#endif 398 399#if !(__has_feature(cxx_variable_templates)) 400#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 401#endif 402 403#if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L 404#if defined(__FreeBSD__) 405#define _LIBCPP_HAS_QUICK_EXIT 406#define _LIBCPP_HAS_C11_FEATURES 407#elif defined(__Fuchsia__) 408#define _LIBCPP_HAS_QUICK_EXIT 409#define _LIBCPP_HAS_C11_FEATURES 410#elif defined(__linux__) 411#if !defined(_LIBCPP_HAS_MUSL_LIBC) 412#if __GLIBC_PREREQ(2, 15) || defined(__BIONIC__) 413#define _LIBCPP_HAS_QUICK_EXIT 414#endif 415#if __GLIBC_PREREQ(2, 17) 416#define _LIBCPP_HAS_C11_FEATURES 417#endif 418#else // defined(_LIBCPP_HAS_MUSL_LIBC) 419#define _LIBCPP_HAS_QUICK_EXIT 420#define _LIBCPP_HAS_C11_FEATURES 421#endif 422#endif // __linux__ 423#endif 424 425#if !(__has_feature(cxx_noexcept)) 426#define _LIBCPP_HAS_NO_NOEXCEPT 427#endif 428 429#if __has_feature(underlying_type) 430# define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T) 431#endif 432 433#if __has_feature(is_literal) 434# define _LIBCPP_IS_LITERAL(T) __is_literal(T) 435#endif 436 437// Inline namespaces are available in Clang regardless of C++ dialect. 438#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE { 439#define _LIBCPP_END_NAMESPACE_STD } } 440#define _VSTD std::_LIBCPP_NAMESPACE 441 442namespace std { 443 inline namespace _LIBCPP_NAMESPACE { 444 } 445} 446 447#if !defined(_LIBCPP_HAS_NO_ASAN) && !__has_feature(address_sanitizer) 448#define _LIBCPP_HAS_NO_ASAN 449#endif 450 451// Allow for build-time disabling of unsigned integer sanitization 452#if !defined(_LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK) && __has_attribute(no_sanitize) 453#define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK __attribute__((__no_sanitize__("unsigned-integer-overflow"))) 454#endif 455 456#elif defined(_LIBCPP_COMPILER_GCC) 457 458#define _ALIGNAS(x) __attribute__((__aligned__(x))) 459#define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x)))) 460 461#define _LIBCPP_NORETURN __attribute__((noreturn)) 462 463#if _GNUC_VER >= 407 464#define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T) 465#define _LIBCPP_IS_LITERAL(T) __is_literal_type(T) 466#define _LIBCPP_HAS_IS_FINAL 467#endif 468 469#if defined(__GNUC__) && _GNUC_VER >= 403 470# define _LIBCPP_HAS_IS_BASE_OF 471#endif 472 473#if !__EXCEPTIONS 474#define _LIBCPP_NO_EXCEPTIONS 475#endif 476 477// constexpr was added to GCC in 4.6. 478#if _GNUC_VER < 406 479#define _LIBCPP_HAS_NO_CONSTEXPR 480// Can only use constexpr in c++11 mode. 481#elif !defined(__GXX_EXPERIMENTAL_CXX0X__) && __cplusplus < 201103L 482#define _LIBCPP_HAS_NO_CONSTEXPR 483#endif 484 485// Determine if GCC supports relaxed constexpr 486#if !defined(__cpp_constexpr) || __cpp_constexpr < 201304L 487#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR 488#endif 489 490// GCC 5 will support variable templates 491#if !defined(__cpp_variable_templates) || __cpp_variable_templates < 201304L 492#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 493#endif 494 495#ifndef __GXX_EXPERIMENTAL_CXX0X__ 496#define _LIBCPP_HAS_NO_DECLTYPE 497#define _LIBCPP_HAS_NO_NULLPTR 498#define _LIBCPP_HAS_NO_UNICODE_CHARS 499#define _LIBCPP_HAS_NO_VARIADICS 500#define _LIBCPP_HAS_NO_RVALUE_REFERENCES 501#define _LIBCPP_HAS_NO_STRONG_ENUMS 502#define _LIBCPP_HAS_NO_NOEXCEPT 503 504#else // __GXX_EXPERIMENTAL_CXX0X__ 505 506#if _GNUC_VER < 403 507#define _LIBCPP_HAS_NO_RVALUE_REFERENCES 508#endif 509 510 511#if _GNUC_VER < 404 512#define _LIBCPP_HAS_NO_DECLTYPE 513#define _LIBCPP_HAS_NO_UNICODE_CHARS 514#define _LIBCPP_HAS_NO_VARIADICS 515#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 516#endif // _GNUC_VER < 404 517 518#if _GNUC_VER < 406 519#define _LIBCPP_HAS_NO_NOEXCEPT 520#define _LIBCPP_HAS_NO_NULLPTR 521#endif 522 523#endif // __GXX_EXPERIMENTAL_CXX0X__ 524 525#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { inline namespace _LIBCPP_NAMESPACE { 526#define _LIBCPP_END_NAMESPACE_STD } } 527#define _VSTD std::_LIBCPP_NAMESPACE 528 529namespace std { 530 inline namespace _LIBCPP_NAMESPACE { 531 } 532} 533 534#if !defined(_LIBCPP_HAS_NO_ASAN) && !defined(__SANITIZE_ADDRESS__) 535#define _LIBCPP_HAS_NO_ASAN 536#endif 537 538#elif defined(_LIBCPP_COMPILER_MSVC) 539 540#define _LIBCPP_TOSTRING2(x) #x 541#define _LIBCPP_TOSTRING(x) _LIBCPP_TOSTRING2(x) 542#define _LIBCPP_WARNING(x) __pragma(message(__FILE__ "(" _LIBCPP_TOSTRING(__LINE__) ") : warning note: " x)) 543 544#if _MSC_VER < 1900 545#error "MSVC versions prior to Visual Studio 2015 are not supported" 546#endif 547 548#define _LIBCPP_HAS_IS_BASE_OF 549#define _LIBCPP_HAS_NO_CONSTEXPR 550#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR 551#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 552#if _MSC_VER <= 1800 553#define _LIBCPP_HAS_NO_UNICODE_CHARS 554#endif 555#define _LIBCPP_HAS_NO_NOEXCEPT 556#define __alignof__ __alignof 557#define _LIBCPP_NORETURN __declspec(noreturn) 558#define _ALIGNAS(x) __declspec(align(x)) 559#define _LIBCPP_HAS_NO_VARIADICS 560 561#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { 562#define _LIBCPP_END_NAMESPACE_STD } 563#define _VSTD std 564 565# define _LIBCPP_WEAK 566namespace std { 567} 568 569#define _LIBCPP_HAS_NO_ASAN 570 571#elif defined(_LIBCPP_COMPILER_IBM) 572 573#define _ALIGNAS(x) __attribute__((__aligned__(x))) 574#define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x)))) 575#define _ATTRIBUTE(x) __attribute__((x)) 576#define _LIBCPP_NORETURN __attribute__((noreturn)) 577 578#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 579#define _LIBCPP_HAS_NO_NOEXCEPT 580#define _LIBCPP_HAS_NO_NULLPTR 581#define _LIBCPP_HAS_NO_UNICODE_CHARS 582#define _LIBCPP_HAS_IS_BASE_OF 583#define _LIBCPP_HAS_IS_FINAL 584#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 585 586#if defined(_AIX) 587#define __MULTILOCALE_API 588#endif 589 590#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE { 591#define _LIBCPP_END_NAMESPACE_STD } } 592#define _VSTD std::_LIBCPP_NAMESPACE 593 594namespace std { 595 inline namespace _LIBCPP_NAMESPACE { 596 } 597} 598 599#define _LIBCPP_HAS_NO_ASAN 600 601#endif // _LIBCPP_COMPILER_[CLANG|GCC|MSVC|IBM] 602 603#if defined(_LIBCPP_OBJECT_FORMAT_COFF) 604#if defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 605# define _LIBCPP_DLL_VIS 606# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 607# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 608# define _LIBCPP_OVERRIDABLE_FUNC_VIS 609#elif defined(_LIBCPP_BUILDING_LIBRARY) 610# define _LIBCPP_DLL_VIS __declspec(dllexport) 611# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 612# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS _LIBCPP_DLL_VIS 613# define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_DLL_VIS 614#else 615# define _LIBCPP_DLL_VIS __declspec(dllimport) 616# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS _LIBCPP_DLL_VIS 617# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 618# define _LIBCPP_OVERRIDABLE_FUNC_VIS 619#endif 620 621#define _LIBCPP_TYPE_VIS _LIBCPP_DLL_VIS 622#define _LIBCPP_FUNC_VIS _LIBCPP_DLL_VIS 623#define _LIBCPP_EXTERN_VIS _LIBCPP_DLL_VIS 624#define _LIBCPP_EXCEPTION_ABI _LIBCPP_DLL_VIS 625#define _LIBCPP_HIDDEN 626#define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 627#define _LIBCPP_TEMPLATE_VIS 628#define _LIBCPP_FUNC_VIS_ONLY 629#define _LIBCPP_ENUM_VIS 630 631#if defined(_LIBCPP_COMPILER_MSVC) 632# define _LIBCPP_INLINE_VISIBILITY __forceinline 633# define _LIBCPP_ALWAYS_INLINE __forceinline 634# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __forceinline 635#else 636# define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__always_inline__)) 637# define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__)) 638# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__ ((__always_inline__)) 639#endif 640#endif // defined(_LIBCPP_OBJECT_FORMAT_COFF) 641 642#ifndef _LIBCPP_HIDDEN 643#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 644#define _LIBCPP_HIDDEN __attribute__ ((__visibility__("hidden"))) 645#else 646#define _LIBCPP_HIDDEN 647#endif 648#endif 649 650#ifndef _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 651#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 652// The inline should be removed once PR32114 is resolved 653#define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS inline _LIBCPP_HIDDEN 654#else 655#define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 656#endif 657#endif 658 659#ifndef _LIBCPP_FUNC_VIS 660#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 661#define _LIBCPP_FUNC_VIS __attribute__ ((__visibility__("default"))) 662#else 663#define _LIBCPP_FUNC_VIS 664#endif 665#endif 666 667#ifndef _LIBCPP_TYPE_VIS 668# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 669# define _LIBCPP_TYPE_VIS __attribute__ ((__visibility__("default"))) 670# else 671# define _LIBCPP_TYPE_VIS 672# endif 673#endif 674 675#ifndef _LIBCPP_TEMPLATE_VIS 676# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 677# if __has_attribute(__type_visibility__) 678# define _LIBCPP_TEMPLATE_VIS __attribute__ ((__type_visibility__("default"))) 679# else 680# define _LIBCPP_TEMPLATE_VIS __attribute__ ((__visibility__("default"))) 681# endif 682# else 683# define _LIBCPP_TEMPLATE_VIS 684# endif 685#endif 686 687#ifndef _LIBCPP_FUNC_VIS_ONLY 688# define _LIBCPP_FUNC_VIS_ONLY _LIBCPP_FUNC_VIS 689#endif 690 691#ifndef _LIBCPP_EXTERN_VIS 692# define _LIBCPP_EXTERN_VIS 693#endif 694 695#ifndef _LIBCPP_OVERRIDABLE_FUNC_VIS 696# define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_FUNC_VIS 697#endif 698 699#ifndef _LIBCPP_EXCEPTION_ABI 700#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 701#define _LIBCPP_EXCEPTION_ABI __attribute__ ((__visibility__("default"))) 702#else 703#define _LIBCPP_EXCEPTION_ABI 704#endif 705#endif 706 707#ifndef _LIBCPP_ENUM_VIS 708# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__) 709# define _LIBCPP_ENUM_VIS __attribute__ ((__type_visibility__("default"))) 710# else 711# define _LIBCPP_ENUM_VIS 712# endif 713#endif 714 715#ifndef _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 716# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__) 717# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS __attribute__ ((__visibility__("default"))) 718# else 719# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 720# endif 721#endif 722 723#ifndef _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 724# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 725#endif 726 727#ifndef _LIBCPP_INLINE_VISIBILITY 728#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 729#define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__visibility__("hidden"), __always_inline__)) 730#else 731#define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__always_inline__)) 732#endif 733#endif 734 735#ifndef _LIBCPP_ALWAYS_INLINE 736#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 737#define _LIBCPP_ALWAYS_INLINE __attribute__ ((__visibility__("hidden"), __always_inline__)) 738#else 739#define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__)) 740#endif 741#endif 742 743#ifndef _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY 744# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 745# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__((__visibility__("default"), __always_inline__)) 746# else 747# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__((__always_inline__)) 748# endif 749#endif 750 751#ifndef _LIBCPP_PREFERRED_OVERLOAD 752# if __has_attribute(__enable_if__) 753# define _LIBCPP_PREFERRED_OVERLOAD __attribute__ ((__enable_if__(true, ""))) 754# endif 755#endif 756 757#ifndef _LIBCPP_HAS_NO_NOEXCEPT 758# define _NOEXCEPT noexcept 759# define _NOEXCEPT_(x) noexcept(x) 760#else 761# define _NOEXCEPT throw() 762# define _NOEXCEPT_(x) 763#endif 764 765#if defined(_LIBCPP_DEBUG_USE_EXCEPTIONS) 766# if !defined(_LIBCPP_DEBUG) 767# error cannot use _LIBCPP_DEBUG_USE_EXCEPTIONS unless _LIBCPP_DEBUG is defined 768# endif 769# define _NOEXCEPT_DEBUG noexcept(false) 770# define _NOEXCEPT_DEBUG_(x) noexcept(false) 771#else 772# define _NOEXCEPT_DEBUG _NOEXCEPT 773# define _NOEXCEPT_DEBUG_(x) _NOEXCEPT_(x) 774#endif 775 776#ifdef _LIBCPP_HAS_NO_UNICODE_CHARS 777typedef unsigned short char16_t; 778typedef unsigned int char32_t; 779#endif // _LIBCPP_HAS_NO_UNICODE_CHARS 780 781#ifndef __SIZEOF_INT128__ 782#define _LIBCPP_HAS_NO_INT128 783#endif 784 785#ifdef _LIBCPP_CXX03_LANG 786# if __has_extension(c_static_assert) 787# define static_assert(__b, __m) _Static_assert(__b, __m) 788# else 789extern "C++" { 790template <bool> struct __static_assert_test; 791template <> struct __static_assert_test<true> {}; 792template <unsigned> struct __static_assert_check {}; 793} 794#define static_assert(__b, __m) \ 795 typedef __static_assert_check<sizeof(__static_assert_test<(__b)>)> \ 796 _LIBCPP_CONCAT(__t, __LINE__) 797# endif // __has_extension(c_static_assert) 798#endif // _LIBCPP_CXX03_LANG 799 800#ifdef _LIBCPP_HAS_NO_DECLTYPE 801// GCC 4.6 provides __decltype in all standard modes. 802#if __has_keyword(__decltype) || _LIBCPP_CLANG_VER >= 304 || _GNUC_VER >= 406 803# define decltype(__x) __decltype(__x) 804#else 805# define decltype(__x) __typeof__(__x) 806#endif 807#endif 808 809#ifdef _LIBCPP_HAS_NO_CONSTEXPR 810#define _LIBCPP_CONSTEXPR 811#else 812#define _LIBCPP_CONSTEXPR constexpr 813#endif 814 815#ifdef _LIBCPP_CXX03_LANG 816#define _LIBCPP_DEFAULT {} 817#else 818#define _LIBCPP_DEFAULT = default; 819#endif 820 821#ifdef _LIBCPP_CXX03_LANG 822#define _LIBCPP_EQUAL_DELETE 823#else 824#define _LIBCPP_EQUAL_DELETE = delete 825#endif 826 827#ifdef __GNUC__ 828#define _NOALIAS __attribute__((__malloc__)) 829#else 830#define _NOALIAS 831#endif 832 833#if __has_feature(cxx_explicit_conversions) || defined(__IBMCPP__) || \ 834 (!defined(_LIBCPP_CXX03_LANG) && defined(__GNUC__)) // All supported GCC versions 835# define _LIBCPP_EXPLICIT explicit 836#else 837# define _LIBCPP_EXPLICIT 838#endif 839 840#if !__has_builtin(__builtin_operator_new) || !__has_builtin(__builtin_operator_delete) 841# define _LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE 842#endif 843 844#ifdef _LIBCPP_HAS_NO_STRONG_ENUMS 845#define _LIBCPP_DECLARE_STRONG_ENUM(x) struct _LIBCPP_TYPE_VIS x { enum __lx 846#define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) \ 847 __lx __v_; \ 848 _LIBCPP_ALWAYS_INLINE x(__lx __v) : __v_(__v) {} \ 849 _LIBCPP_ALWAYS_INLINE explicit x(int __v) : __v_(static_cast<__lx>(__v)) {} \ 850 _LIBCPP_ALWAYS_INLINE operator int() const {return __v_;} \ 851 }; 852#else // _LIBCPP_HAS_NO_STRONG_ENUMS 853#define _LIBCPP_DECLARE_STRONG_ENUM(x) enum class _LIBCPP_ENUM_VIS x 854#define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) 855#endif // _LIBCPP_HAS_NO_STRONG_ENUMS 856 857#ifdef _LIBCPP_DEBUG 858# if _LIBCPP_DEBUG == 0 859# define _LIBCPP_DEBUG_LEVEL 1 860# elif _LIBCPP_DEBUG == 1 861# define _LIBCPP_DEBUG_LEVEL 2 862# else 863# error Supported values for _LIBCPP_DEBUG are 0 and 1 864# endif 865# if !defined(_LIBCPP_BUILDING_LIBRARY) 866# define _LIBCPP_EXTERN_TEMPLATE(...) 867# endif 868#endif 869 870#ifdef _LIBCPP_DISABLE_EXTERN_TEMPLATE 871#define _LIBCPP_EXTERN_TEMPLATE(...) 872#define _LIBCPP_EXTERN_TEMPLATE2(...) 873#endif 874 875#ifndef _LIBCPP_EXTERN_TEMPLATE 876#define _LIBCPP_EXTERN_TEMPLATE(...) extern template __VA_ARGS__; 877#endif 878 879#ifndef _LIBCPP_EXTERN_TEMPLATE2 880#define _LIBCPP_EXTERN_TEMPLATE2(...) extern template __VA_ARGS__; 881#endif 882 883#if defined(__APPLE__) && defined(__LP64__) && !defined(__x86_64__) 884#define _LIBCPP_NONUNIQUE_RTTI_BIT (1ULL << 63) 885#endif 886 887#if defined(__APPLE__) || defined(__FreeBSD__) || defined(_LIBCPP_MSVCRT) || \ 888 defined(__sun__) || defined(__NetBSD__) || defined(__CloudABI__) 889#define _LIBCPP_LOCALE__L_EXTENSIONS 1 890#endif 891 892#if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__)) 893// Most unix variants have catopen. These are the specific ones that don't. 894#if !defined(__BIONIC__) && !defined(_NEWLIB_VERSION) 895#define _LIBCPP_HAS_CATOPEN 1 896#endif 897#endif 898 899#ifdef __FreeBSD__ 900#define _DECLARE_C99_LDBL_MATH 1 901#endif 902 903#if defined(__APPLE__) 904# if !defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && \ 905 defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) 906# define __MAC_OS_X_VERSION_MIN_REQUIRED __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ 907# endif 908# if defined(__MAC_OS_X_VERSION_MIN_REQUIRED) 909# if __MAC_OS_X_VERSION_MIN_REQUIRED < 1060 910# define _LIBCPP_HAS_NO_ALIGNED_ALLOCATION 911# endif 912# endif 913#endif // defined(__APPLE__) 914 915#if defined(__APPLE__) || defined(__FreeBSD__) 916#define _LIBCPP_HAS_DEFAULTRUNELOCALE 917#endif 918 919#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__sun__) 920#define _LIBCPP_WCTYPE_IS_MASK 921#endif 922 923#ifndef _LIBCPP_STD_VER 924# if __cplusplus <= 201103L 925# define _LIBCPP_STD_VER 11 926# elif __cplusplus <= 201402L 927# define _LIBCPP_STD_VER 14 928# else 929# define _LIBCPP_STD_VER 16 // current year, or date of c++17 ratification 930# endif 931#endif // _LIBCPP_STD_VER 932 933#if _LIBCPP_STD_VER > 11 934#define _LIBCPP_DEPRECATED [[deprecated]] 935#else 936#define _LIBCPP_DEPRECATED 937#endif 938 939#if _LIBCPP_STD_VER <= 11 940#define _LIBCPP_EXPLICIT_AFTER_CXX11 941#define _LIBCPP_DEPRECATED_AFTER_CXX11 942#else 943#define _LIBCPP_EXPLICIT_AFTER_CXX11 explicit 944#define _LIBCPP_DEPRECATED_AFTER_CXX11 [[deprecated]] 945#endif 946 947#if _LIBCPP_STD_VER > 11 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR) 948#define _LIBCPP_CONSTEXPR_AFTER_CXX11 constexpr 949#else 950#define _LIBCPP_CONSTEXPR_AFTER_CXX11 951#endif 952 953#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR) 954#define _LIBCPP_CONSTEXPR_AFTER_CXX14 constexpr 955#else 956#define _LIBCPP_CONSTEXPR_AFTER_CXX14 957#endif 958 959// FIXME: Remove all usages of this macro once compilers catch up. 960#if !defined(__cpp_inline_variables) || (__cpp_inline_variables < 201606L) 961# define _LIBCPP_HAS_NO_INLINE_VARIABLES 962#endif 963 964#ifdef _LIBCPP_HAS_NO_RVALUE_REFERENCES 965# define _LIBCPP_EXPLICIT_MOVE(x) _VSTD::move(x) 966#else 967# define _LIBCPP_EXPLICIT_MOVE(x) (x) 968#endif 969 970#ifndef _LIBCPP_HAS_NO_ASAN 971_LIBCPP_FUNC_VIS extern "C" void __sanitizer_annotate_contiguous_container( 972 const void *, const void *, const void *, const void *); 973#endif 974 975// Try to find out if RTTI is disabled. 976// g++ and cl.exe have RTTI on by default and define a macro when it is. 977// g++ only defines the macro in 4.3.2 and onwards. 978#if !defined(_LIBCPP_NO_RTTI) 979# if defined(__GNUC__) && ((__GNUC__ >= 5) || (__GNUC__ == 4 && \ 980 (__GNUC_MINOR__ >= 3 || __GNUC_PATCHLEVEL__ >= 2))) && !defined(__GXX_RTTI) 981# define _LIBCPP_NO_RTTI 982# elif defined(_LIBCPP_COMPILER_MSVC) && !defined(_CPPRTTI) 983# define _LIBCPP_NO_RTTI 984# endif 985#endif 986 987#ifndef _LIBCPP_WEAK 988# define _LIBCPP_WEAK __attribute__((__weak__)) 989#endif 990 991// Thread API 992#if !defined(_LIBCPP_HAS_NO_THREADS) && \ 993 !defined(_LIBCPP_HAS_THREAD_API_PTHREAD) && \ 994 !defined(_LIBCPP_HAS_THREAD_API_WIN32) && \ 995 !defined(_LIBCPP_HAS_THREAD_API_EXTERNAL) 996# if defined(__FreeBSD__) || \ 997 defined(__Fuchsia__) || \ 998 defined(__NetBSD__) || \ 999 defined(__linux__) || \ 1000 defined(__APPLE__) || \ 1001 defined(__CloudABI__) || \ 1002 defined(__sun__) || \ 1003 (defined(__MINGW32__) && __libcpp_has_include(<pthread.h>)) 1004# define _LIBCPP_HAS_THREAD_API_PTHREAD 1005# elif defined(_LIBCPP_WIN32API) 1006# define _LIBCPP_HAS_THREAD_API_WIN32 1007# else 1008# error "No thread API" 1009# endif // _LIBCPP_HAS_THREAD_API 1010#endif // _LIBCPP_HAS_NO_THREADS 1011 1012#if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_PTHREAD) 1013# error _LIBCPP_HAS_THREAD_API_PTHREAD may only be defined when \ 1014 _LIBCPP_HAS_NO_THREADS is not defined. 1015#endif 1016 1017#if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_EXTERNAL) 1018# error _LIBCPP_HAS_THREAD_API_EXTERNAL may not be defined when \ 1019 _LIBCPP_HAS_NO_THREADS is defined. 1020#endif 1021 1022#if defined(_LIBCPP_HAS_NO_MONOTONIC_CLOCK) && !defined(_LIBCPP_HAS_NO_THREADS) 1023# error _LIBCPP_HAS_NO_MONOTONIC_CLOCK may only be defined when \ 1024 _LIBCPP_HAS_NO_THREADS is defined. 1025#endif 1026 1027// Systems that use capability-based security (FreeBSD with Capsicum, 1028// Nuxi CloudABI) may only provide local filesystem access (using *at()). 1029// Functions like open(), rename(), unlink() and stat() should not be 1030// used, as they attempt to access the global filesystem namespace. 1031#ifdef __CloudABI__ 1032#define _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE 1033#endif 1034 1035// CloudABI is intended for running networked services. Processes do not 1036// have standard input and output channels. 1037#ifdef __CloudABI__ 1038#define _LIBCPP_HAS_NO_STDIN 1039#define _LIBCPP_HAS_NO_STDOUT 1040#endif 1041 1042#if defined(__BIONIC__) || defined(__CloudABI__) || \ 1043 defined(__Fuchsia__) || defined(_LIBCPP_HAS_MUSL_LIBC) 1044#define _LIBCPP_PROVIDES_DEFAULT_RUNE_TABLE 1045#endif 1046 1047// Thread-unsafe functions such as strtok() and localtime() 1048// are not available. 1049#ifdef __CloudABI__ 1050#define _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS 1051#endif 1052 1053#if __has_feature(cxx_atomic) || __has_extension(c_atomic) || __has_keyword(_Atomic) 1054#define _LIBCPP_HAS_C_ATOMIC_IMP 1055#elif _GNUC_VER > 407 1056#define _LIBCPP_HAS_GCC_ATOMIC_IMP 1057#endif 1058 1059#if (!defined(_LIBCPP_HAS_C_ATOMIC_IMP) && !defined(_LIBCPP_HAS_GCC_ATOMIC_IMP)) \ 1060 || defined(_LIBCPP_HAS_NO_THREADS) 1061#define _LIBCPP_HAS_NO_ATOMIC_HEADER 1062#endif 1063 1064#ifndef _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK 1065#define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK 1066#endif 1067 1068#if defined(_LIBCPP_ENABLE_THREAD_SAFETY_ANNOTATIONS) 1069#if defined(__clang__) && __has_attribute(acquire_capability) 1070// Work around the attribute handling in clang. When both __declspec and 1071// __attribute__ are present, the processing goes awry preventing the definition 1072// of the types. 1073#if !defined(_LIBCPP_OBJECT_FORMAT_COFF) 1074#define _LIBCPP_HAS_THREAD_SAFETY_ANNOTATIONS 1075#endif 1076#endif 1077#endif 1078 1079#if __has_attribute(require_constant_initialization) 1080#define _LIBCPP_SAFE_STATIC __attribute__((__require_constant_initialization__)) 1081#else 1082#define _LIBCPP_SAFE_STATIC 1083#endif 1084 1085#if !__has_builtin(__builtin_addressof) && _GNUC_VER < 700 1086# define _LIBCPP_HAS_NO_BUILTIN_ADDRESSOF 1087#endif 1088 1089#if !defined(_LIBCPP_HAS_NO_OFF_T_FUNCTIONS) 1090#if defined(_LIBCPP_MSVCRT) || defined(_NEWLIB_VERSION) 1091#define _LIBCPP_HAS_NO_OFF_T_FUNCTIONS 1092#endif 1093#endif 1094 1095#if __has_attribute(diagnose_if) && !defined(_LIBCPP_DISABLE_ADDITIONAL_DIAGNOSTICS) 1096# define _LIBCPP_DIAGNOSE_WARNING(...) \ 1097 __attribute__((diagnose_if(__VA_ARGS__, "warning"))) 1098# define _LIBCPP_DIAGNOSE_ERROR(...) \ 1099 __attribute__((diagnose_if(__VA_ARGS__, "error"))) 1100#else 1101# define _LIBCPP_DIAGNOSE_WARNING(...) 1102# define _LIBCPP_DIAGNOSE_ERROR(...) 1103#endif 1104 1105#if __has_attribute(fallthough) || _GNUC_VER >= 700 1106// Use a function like macro to imply that it must be followed by a semicolon 1107#define _LIBCPP_FALLTHROUGH() __attribute__((__fallthrough__)) 1108#else 1109#define _LIBCPP_FALLTHROUGH() ((void)0) 1110#endif 1111 1112#if defined(_LIBCPP_ABI_MICROSOFT) && \ 1113 (defined(_LIBCPP_COMPILER_MSVC) || __has_declspec_attribute(empty_bases)) 1114# define _LIBCPP_DECLSPEC_EMPTY_BASES __declspec(empty_bases) 1115#else 1116# define _LIBCPP_DECLSPEC_EMPTY_BASES 1117#endif 1118 1119#if defined(_LIBCPP_ENABLE_CXX17_REMOVED_FEATURES) 1120# define _LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR 1121# define _LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS 1122# define _LIBCPP_ENABLE_CXX17_REMOVED_RANDOM_SHUFFLE 1123# define _LIBCPP_ENABLE_CXX17_REMOVED_BINDERS 1124#endif // _LIBCPP_ENABLE_CXX17_REMOVED_FEATURES 1125 1126#if !defined(__cpp_deduction_guides) || __cpp_deduction_guides < 201611 1127# define _LIBCPP_HAS_NO_DEDUCTION_GUIDES 1128#endif 1129 1130#if !__has_keyword(__is_aggregate) && (_GNUC_VER_NEW < 7001) 1131# define _LIBCPP_HAS_NO_IS_AGGREGATE 1132#endif 1133 1134#if !defined(__cpp_coroutines) || __cpp_coroutines < 201703L 1135# define _LIBCPP_HAS_NO_COROUTINES 1136#endif 1137 1138// Decide whether to use availability macros. 1139#if !defined(_LIBCPP_BUILDING_LIBRARY) && \ 1140 !defined(_LIBCPP_DISABLE_AVAILABILITY) && \ 1141 __has_feature(attribute_availability_with_strict) && \ 1142 __has_feature(attribute_availability_in_templates) 1143#ifdef __APPLE__ 1144#define _LIBCPP_USE_AVAILABILITY_APPLE 1145#endif 1146#endif 1147 1148// Define availability macros. 1149#if defined(_LIBCPP_USE_AVAILABILITY_APPLE) 1150#define _LIBCPP_AVAILABILITY_SHARED_MUTEX \ 1151 __attribute__((availability(macosx,strict,introduced=10.12))) \ 1152 __attribute__((availability(ios,strict,introduced=10.0))) \ 1153 __attribute__((availability(tvos,strict,introduced=10.0))) \ 1154 __attribute__((availability(watchos,strict,introduced=3.0))) 1155#define _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS __attribute__((unavailable)) 1156#define _LIBCPP_AVAILABILITY_BAD_ARRAY_LENGTH __attribute__((unavailable)) 1157#define _LIBCPP_AVAILABILITY_BAD_ANY_CAST __attribute__((unavailable)) 1158#define _LIBCPP_AVAILABILITY_UNCAUGHT_EXCEPTIONS \ 1159 __attribute__((availability(macosx,strict,introduced=10.12))) \ 1160 __attribute__((availability(ios,strict,introduced=10.0))) \ 1161 __attribute__((availability(tvos,strict,introduced=10.0))) \ 1162 __attribute__((availability(watchos,strict,introduced=3.0))) 1163#define _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE \ 1164 __attribute__((availability(macosx,strict,introduced=10.12))) \ 1165 __attribute__((availability(ios,strict,introduced=10.0))) \ 1166 __attribute__((availability(tvos,strict,introduced=10.0))) \ 1167 __attribute__((availability(watchos,strict,introduced=3.0))) 1168#define _LIBCPP_AVAILABILITY_FUTURE_ERROR \ 1169 __attribute__((availability(ios,strict,introduced=6.0))) 1170#define _LIBCPP_AVAILABILITY_TYPEINFO_VTABLE \ 1171 __attribute__((availability(macosx,strict,introduced=10.9))) \ 1172 __attribute__((availability(ios,strict,introduced=7.0))) 1173#define _LIBCPP_AVAILABILITY_LOCALE_CATEGORY \ 1174 __attribute__((availability(macosx,strict,introduced=10.9))) \ 1175 __attribute__((availability(ios,strict,introduced=7.0))) 1176#define _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR \ 1177 __attribute__((availability(macosx,strict,introduced=10.9))) \ 1178 __attribute__((availability(ios,strict,introduced=7.0))) 1179#define _LIBCPP_AVAILABILITY_ALIGNED_ALLOCATION \ 1180 __attribute__((availability(macosx,strict,introduced=10.13))) \ 1181 __attribute__((availability(ios,strict,introduced=11.0))) \ 1182 __attribute__((availability(tvos,strict,introduced=11.0))) \ 1183 __attribute__((availability(watchos,strict,introduced=4.0))) 1184#else 1185#define _LIBCPP_AVAILABILITY_SHARED_MUTEX 1186#define _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS 1187#define _LIBCPP_AVAILABILITY_BAD_ARRAY_LENGTH 1188#define _LIBCPP_AVAILABILITY_BAD_ANY_CAST 1189#define _LIBCPP_AVAILABILITY_UNCAUGHT_EXCEPTIONS 1190#define _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE 1191#define _LIBCPP_AVAILABILITY_FUTURE_ERROR 1192#define _LIBCPP_AVAILABILITY_TYPEINFO_VTABLE 1193#define _LIBCPP_AVAILABILITY_LOCALE_CATEGORY 1194#define _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR 1195#define _LIBCPP_AVAILABILITY_ALIGNED_ALLOCATION 1196#endif 1197 1198// Define availability that depends on _LIBCPP_NO_EXCEPTIONS. 1199#ifdef _LIBCPP_NO_EXCEPTIONS 1200#define _LIBCPP_AVAILABILITY_DYNARRAY 1201#define _LIBCPP_AVAILABILITY_FUTURE 1202#define _LIBCPP_AVAILABILITY_THROW_BAD_ANY_CAST 1203#else 1204#define _LIBCPP_AVAILABILITY_DYNARRAY _LIBCPP_AVAILABILITY_BAD_ARRAY_LENGTH 1205#define _LIBCPP_AVAILABILITY_FUTURE _LIBCPP_AVAILABILITY_FUTURE_ERROR 1206#define _LIBCPP_AVAILABILITY_THROW_BAD_ANY_CAST \ 1207 _LIBCPP_AVAILABILITY_BAD_ANY_CAST 1208#endif 1209 1210// Availability of stream API in the dylib got dropped and re-added. The 1211// extern template should effectively be available at: 1212// availability(macosx,introduced=10.9) 1213// availability(ios,introduced=7.0) 1214#if defined(_LIBCPP_USE_AVAILABILITY_APPLE) && \ 1215 ((defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && \ 1216 __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 1090) || \ 1217 (defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) && \ 1218 __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ < 70000)) 1219#define _LIBCPP_AVAILABILITY_NO_STREAMS_EXTERN_TEMPLATE 1220#endif 1221 1222#if defined(_LIBCPP_COMPILER_IBM) 1223#define _LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO 1224#endif 1225 1226#if defined(_LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO) 1227# define _LIBCPP_PUSH_MACROS 1228# define _LIBCPP_POP_MACROS 1229#else 1230 // Don't warn about macro conflicts when we can restore them at the 1231 // end of the header. 1232# ifndef _LIBCPP_DISABLE_MACRO_CONFLICT_WARNINGS 1233# define _LIBCPP_DISABLE_MACRO_CONFLICT_WARNINGS 1234# endif 1235# if defined(_LIBCPP_COMPILER_MSVC) 1236# define _LIBCPP_PUSH_MACROS \ 1237 __pragma(push_macro("min")) \ 1238 __pragma(push_macro("max")) 1239# define _LIBCPP_POP_MACROS \ 1240 __pragma(pop_macro("min")) \ 1241 __pragma(pop_macro("max")) 1242# else 1243# define _LIBCPP_PUSH_MACROS \ 1244 _Pragma("push_macro(\"min\")") \ 1245 _Pragma("push_macro(\"max\")") 1246# define _LIBCPP_POP_MACROS \ 1247 _Pragma("pop_macro(\"min\")") \ 1248 _Pragma("pop_macro(\"max\")") 1249# endif 1250#endif // defined(_LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO) 1251 1252 1253#endif // __cplusplus 1254 1255#endif // _LIBCPP_CONFIG 1256