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 if 233// a MS compatibility version is specified. 234# if defined(_MSC_VER) && !defined(__MINGW32__) 235# define _LIBCPP_MSVCRT // Using Microsoft's C Runtime library 236# endif 237# if (defined(_M_AMD64) || defined(__x86_64__)) || (defined(_M_ARM) || defined(__arm__)) 238# define _LIBCPP_HAS_BITSCAN64 239# endif 240# if defined(_LIBCPP_MSVCRT) 241# define _LIBCPP_HAS_QUICK_EXIT 242# endif 243 244// Some CRT APIs are unavailable to store apps 245#if defined(WINAPI_FAMILY) 246#include <winapifamily.h> 247#if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) && \ 248 (!defined(WINAPI_PARTITION_SYSTEM) || \ 249 !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_SYSTEM)) 250#define _LIBCPP_WINDOWS_STORE_APP 251#endif 252#endif 253#endif // defined(_WIN32) 254 255#ifdef __sun__ 256# include <sys/isa_defs.h> 257# ifdef _LITTLE_ENDIAN 258# define _LIBCPP_LITTLE_ENDIAN 1 259# define _LIBCPP_BIG_ENDIAN 0 260# else 261# define _LIBCPP_LITTLE_ENDIAN 0 262# define _LIBCPP_BIG_ENDIAN 1 263# endif 264#endif // __sun__ 265 266#if defined(__CloudABI__) 267 // Certain architectures provide arc4random(). Prefer using 268 // arc4random() over /dev/{u,}random to make it possible to obtain 269 // random data even when using sandboxing mechanisms such as chroots, 270 // Capsicum, etc. 271# define _LIBCPP_USING_ARC4_RANDOM 272#elif defined(__native_client__) 273 // NaCl's sandbox (which PNaCl also runs in) doesn't allow filesystem access, 274 // including accesses to the special files under /dev. C++11's 275 // std::random_device is instead exposed through a NaCl syscall. 276# define _LIBCPP_USING_NACL_RANDOM 277#elif defined(_LIBCPP_WIN32API) 278# define _LIBCPP_USING_WIN32_RANDOM 279#else 280# define _LIBCPP_USING_DEV_RANDOM 281#endif 282 283#if !defined(_LIBCPP_LITTLE_ENDIAN) || !defined(_LIBCPP_BIG_ENDIAN) 284# include <endian.h> 285# if __BYTE_ORDER == __LITTLE_ENDIAN 286# define _LIBCPP_LITTLE_ENDIAN 1 287# define _LIBCPP_BIG_ENDIAN 0 288# elif __BYTE_ORDER == __BIG_ENDIAN 289# define _LIBCPP_LITTLE_ENDIAN 0 290# define _LIBCPP_BIG_ENDIAN 1 291# else // __BYTE_ORDER == __BIG_ENDIAN 292# error unable to determine endian 293# endif 294#endif // !defined(_LIBCPP_LITTLE_ENDIAN) || !defined(_LIBCPP_BIG_ENDIAN) 295 296#if __has_attribute(__no_sanitize__) && !defined(_LIBCPP_COMPILER_GCC) 297#define _LIBCPP_NO_CFI __attribute__((__no_sanitize__("cfi"))) 298#else 299#define _LIBCPP_NO_CFI 300#endif 301 302#if defined(_LIBCPP_COMPILER_CLANG) 303 304// _LIBCPP_ALTERNATE_STRING_LAYOUT is an old name for 305// _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT left here for backward compatibility. 306#if (defined(__APPLE__) && !defined(__i386__) && !defined(__x86_64__) && \ 307 (!defined(__arm__) || __ARM_ARCH_7K__ >= 2)) || \ 308 defined(_LIBCPP_ALTERNATE_STRING_LAYOUT) 309#define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT 310#endif 311 312#if __has_feature(cxx_alignas) 313# define _ALIGNAS_TYPE(x) alignas(x) 314# define _ALIGNAS(x) alignas(x) 315#else 316# define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x)))) 317# define _ALIGNAS(x) __attribute__((__aligned__(x))) 318#endif 319 320#if __cplusplus < 201103L 321typedef __char16_t char16_t; 322typedef __char32_t char32_t; 323#endif 324 325#if !(__has_feature(cxx_exceptions)) && !defined(_LIBCPP_NO_EXCEPTIONS) 326#define _LIBCPP_NO_EXCEPTIONS 327#endif 328 329#if !(__has_feature(cxx_rtti)) && !defined(_LIBCPP_NO_RTTI) 330#define _LIBCPP_NO_RTTI 331#endif 332 333#if !(__has_feature(cxx_strong_enums)) 334#define _LIBCPP_HAS_NO_STRONG_ENUMS 335#endif 336 337#if !(__has_feature(cxx_decltype)) 338#define _LIBCPP_HAS_NO_DECLTYPE 339#endif 340 341#if __has_feature(cxx_attributes) 342# define _LIBCPP_NORETURN [[noreturn]] 343#else 344# define _LIBCPP_NORETURN __attribute__ ((noreturn)) 345#endif 346 347#if !(__has_feature(cxx_lambdas)) 348#define _LIBCPP_HAS_NO_LAMBDAS 349#endif 350 351#if !(__has_feature(cxx_nullptr)) 352# if (__has_extension(cxx_nullptr) || __has_keyword(__nullptr)) && defined(_LIBCPP_ABI_ALWAYS_USE_CXX11_NULLPTR) 353# define nullptr __nullptr 354# else 355# define _LIBCPP_HAS_NO_NULLPTR 356# endif 357#endif 358 359#if !(__has_feature(cxx_rvalue_references)) 360#define _LIBCPP_HAS_NO_RVALUE_REFERENCES 361#endif 362 363#if !(__has_feature(cxx_auto_type)) 364#define _LIBCPP_HAS_NO_AUTO_TYPE 365#endif 366 367#if !(__has_feature(cxx_variadic_templates)) 368#define _LIBCPP_HAS_NO_VARIADICS 369#endif 370 371#if !(__has_feature(cxx_generalized_initializers)) 372#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 373#endif 374 375#if __has_feature(is_base_of) 376# define _LIBCPP_HAS_IS_BASE_OF 377#endif 378 379#if __has_feature(is_final) 380# define _LIBCPP_HAS_IS_FINAL 381#endif 382 383// Objective-C++ features (opt-in) 384#if __has_feature(objc_arc) 385#define _LIBCPP_HAS_OBJC_ARC 386#endif 387 388#if __has_feature(objc_arc_weak) 389#define _LIBCPP_HAS_OBJC_ARC_WEAK 390#endif 391 392#if !(__has_feature(cxx_constexpr)) 393#define _LIBCPP_HAS_NO_CONSTEXPR 394#endif 395 396#if !(__has_feature(cxx_relaxed_constexpr)) 397#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR 398#endif 399 400#if !(__has_feature(cxx_variable_templates)) 401#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 402#endif 403 404#if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L 405#if defined(__FreeBSD__) 406#define _LIBCPP_HAS_QUICK_EXIT 407#define _LIBCPP_HAS_C11_FEATURES 408#elif defined(__Fuchsia__) 409#define _LIBCPP_HAS_QUICK_EXIT 410#define _LIBCPP_HAS_C11_FEATURES 411#elif defined(__linux__) 412#if !defined(_LIBCPP_HAS_MUSL_LIBC) 413#if __GLIBC_PREREQ(2, 15) || defined(__BIONIC__) 414#define _LIBCPP_HAS_QUICK_EXIT 415#endif 416#if __GLIBC_PREREQ(2, 17) 417#define _LIBCPP_HAS_C11_FEATURES 418#endif 419#else // defined(_LIBCPP_HAS_MUSL_LIBC) 420#define _LIBCPP_HAS_QUICK_EXIT 421#define _LIBCPP_HAS_C11_FEATURES 422#endif 423#endif // __linux__ 424#endif 425 426#if !(__has_feature(cxx_noexcept)) 427#define _LIBCPP_HAS_NO_NOEXCEPT 428#endif 429 430#if __has_feature(underlying_type) 431# define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T) 432#endif 433 434#if __has_feature(is_literal) 435# define _LIBCPP_IS_LITERAL(T) __is_literal(T) 436#endif 437 438// Inline namespaces are available in Clang regardless of C++ dialect. 439#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE { 440#define _LIBCPP_END_NAMESPACE_STD } } 441#define _VSTD std::_LIBCPP_NAMESPACE 442 443namespace std { 444 inline namespace _LIBCPP_NAMESPACE { 445 } 446} 447 448#if !defined(_LIBCPP_HAS_NO_ASAN) && !__has_feature(address_sanitizer) 449#define _LIBCPP_HAS_NO_ASAN 450#endif 451 452// Allow for build-time disabling of unsigned integer sanitization 453#if !defined(_LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK) && __has_attribute(no_sanitize) 454#define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK __attribute__((__no_sanitize__("unsigned-integer-overflow"))) 455#endif 456 457#elif defined(_LIBCPP_COMPILER_GCC) 458 459#define _ALIGNAS(x) __attribute__((__aligned__(x))) 460#define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x)))) 461 462#define _LIBCPP_NORETURN __attribute__((noreturn)) 463 464#if _GNUC_VER >= 407 465#define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T) 466#define _LIBCPP_IS_LITERAL(T) __is_literal_type(T) 467#define _LIBCPP_HAS_IS_FINAL 468#endif 469 470#if defined(__GNUC__) && _GNUC_VER >= 403 471# define _LIBCPP_HAS_IS_BASE_OF 472#endif 473 474#if !__EXCEPTIONS 475#define _LIBCPP_NO_EXCEPTIONS 476#endif 477 478// constexpr was added to GCC in 4.6. 479#if _GNUC_VER < 406 480#define _LIBCPP_HAS_NO_CONSTEXPR 481// Can only use constexpr in c++11 mode. 482#elif !defined(__GXX_EXPERIMENTAL_CXX0X__) && __cplusplus < 201103L 483#define _LIBCPP_HAS_NO_CONSTEXPR 484#endif 485 486// Determine if GCC supports relaxed constexpr 487#if !defined(__cpp_constexpr) || __cpp_constexpr < 201304L 488#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR 489#endif 490 491// GCC 5 will support variable templates 492#if !defined(__cpp_variable_templates) || __cpp_variable_templates < 201304L 493#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 494#endif 495 496#ifndef __GXX_EXPERIMENTAL_CXX0X__ 497#define _LIBCPP_HAS_NO_DECLTYPE 498#define _LIBCPP_HAS_NO_NULLPTR 499#define _LIBCPP_HAS_NO_UNICODE_CHARS 500#define _LIBCPP_HAS_NO_VARIADICS 501#define _LIBCPP_HAS_NO_RVALUE_REFERENCES 502#define _LIBCPP_HAS_NO_STRONG_ENUMS 503#define _LIBCPP_HAS_NO_NOEXCEPT 504 505#else // __GXX_EXPERIMENTAL_CXX0X__ 506 507#if _GNUC_VER < 403 508#define _LIBCPP_HAS_NO_RVALUE_REFERENCES 509#endif 510 511 512#if _GNUC_VER < 404 513#define _LIBCPP_HAS_NO_DECLTYPE 514#define _LIBCPP_HAS_NO_UNICODE_CHARS 515#define _LIBCPP_HAS_NO_VARIADICS 516#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 517#endif // _GNUC_VER < 404 518 519#if _GNUC_VER < 406 520#define _LIBCPP_HAS_NO_NOEXCEPT 521#define _LIBCPP_HAS_NO_NULLPTR 522#endif 523 524#endif // __GXX_EXPERIMENTAL_CXX0X__ 525 526#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { inline namespace _LIBCPP_NAMESPACE { 527#define _LIBCPP_END_NAMESPACE_STD } } 528#define _VSTD std::_LIBCPP_NAMESPACE 529 530namespace std { 531 inline namespace _LIBCPP_NAMESPACE { 532 } 533} 534 535#if !defined(_LIBCPP_HAS_NO_ASAN) && !defined(__SANITIZE_ADDRESS__) 536#define _LIBCPP_HAS_NO_ASAN 537#endif 538 539#elif defined(_LIBCPP_COMPILER_MSVC) 540 541#define _LIBCPP_TOSTRING2(x) #x 542#define _LIBCPP_TOSTRING(x) _LIBCPP_TOSTRING2(x) 543#define _LIBCPP_WARNING(x) __pragma(message(__FILE__ "(" _LIBCPP_TOSTRING(__LINE__) ") : warning note: " x)) 544 545#if _MSC_VER < 1900 546#error "MSVC versions prior to Visual Studio 2015 are not supported" 547#endif 548 549#define _LIBCPP_HAS_IS_BASE_OF 550#define _LIBCPP_HAS_NO_CONSTEXPR 551#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR 552#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 553#if _MSC_VER <= 1800 554#define _LIBCPP_HAS_NO_UNICODE_CHARS 555#endif 556#define _LIBCPP_HAS_NO_NOEXCEPT 557#define __alignof__ __alignof 558#define _LIBCPP_NORETURN __declspec(noreturn) 559#define _ALIGNAS(x) __declspec(align(x)) 560#define _LIBCPP_HAS_NO_VARIADICS 561 562#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { 563#define _LIBCPP_END_NAMESPACE_STD } 564#define _VSTD std 565 566# define _LIBCPP_WEAK 567namespace std { 568} 569 570#define _LIBCPP_HAS_NO_ASAN 571 572#elif defined(_LIBCPP_COMPILER_IBM) 573 574#define _ALIGNAS(x) __attribute__((__aligned__(x))) 575#define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x)))) 576#define _ATTRIBUTE(x) __attribute__((x)) 577#define _LIBCPP_NORETURN __attribute__((noreturn)) 578 579#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 580#define _LIBCPP_HAS_NO_NOEXCEPT 581#define _LIBCPP_HAS_NO_NULLPTR 582#define _LIBCPP_HAS_NO_UNICODE_CHARS 583#define _LIBCPP_HAS_IS_BASE_OF 584#define _LIBCPP_HAS_IS_FINAL 585#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 586 587#if defined(_AIX) 588#define __MULTILOCALE_API 589#endif 590 591#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE { 592#define _LIBCPP_END_NAMESPACE_STD } } 593#define _VSTD std::_LIBCPP_NAMESPACE 594 595namespace std { 596 inline namespace _LIBCPP_NAMESPACE { 597 } 598} 599 600#define _LIBCPP_HAS_NO_ASAN 601 602#endif // _LIBCPP_COMPILER_[CLANG|GCC|MSVC|IBM] 603 604#if defined(_LIBCPP_OBJECT_FORMAT_COFF) 605#if defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 606# define _LIBCPP_DLL_VIS 607# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 608# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 609# define _LIBCPP_OVERRIDABLE_FUNC_VIS 610#elif defined(_LIBCPP_BUILDING_LIBRARY) 611# define _LIBCPP_DLL_VIS __declspec(dllexport) 612# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 613# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS _LIBCPP_DLL_VIS 614# define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_DLL_VIS 615#else 616# define _LIBCPP_DLL_VIS __declspec(dllimport) 617# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS _LIBCPP_DLL_VIS 618# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 619# define _LIBCPP_OVERRIDABLE_FUNC_VIS 620#endif 621 622#define _LIBCPP_TYPE_VIS _LIBCPP_DLL_VIS 623#define _LIBCPP_FUNC_VIS _LIBCPP_DLL_VIS 624#define _LIBCPP_EXTERN_VIS _LIBCPP_DLL_VIS 625#define _LIBCPP_EXCEPTION_ABI _LIBCPP_DLL_VIS 626#define _LIBCPP_HIDDEN 627#define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 628#define _LIBCPP_TEMPLATE_VIS 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_EXTERN_VIS 688# define _LIBCPP_EXTERN_VIS 689#endif 690 691#ifndef _LIBCPP_OVERRIDABLE_FUNC_VIS 692# define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_FUNC_VIS 693#endif 694 695#ifndef _LIBCPP_EXCEPTION_ABI 696#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 697#define _LIBCPP_EXCEPTION_ABI __attribute__ ((__visibility__("default"))) 698#else 699#define _LIBCPP_EXCEPTION_ABI 700#endif 701#endif 702 703#ifndef _LIBCPP_ENUM_VIS 704# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__) 705# define _LIBCPP_ENUM_VIS __attribute__ ((__type_visibility__("default"))) 706# else 707# define _LIBCPP_ENUM_VIS 708# endif 709#endif 710 711#ifndef _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 712# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__) 713# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS __attribute__ ((__visibility__("default"))) 714# else 715# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 716# endif 717#endif 718 719#ifndef _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 720# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 721#endif 722 723#ifndef _LIBCPP_INLINE_VISIBILITY 724#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 725#define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__visibility__("hidden"), __always_inline__)) 726#else 727#define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__always_inline__)) 728#endif 729#endif 730 731#ifndef _LIBCPP_ALWAYS_INLINE 732#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 733#define _LIBCPP_ALWAYS_INLINE __attribute__ ((__visibility__("hidden"), __always_inline__)) 734#else 735#define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__)) 736#endif 737#endif 738 739#ifndef _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY 740# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 741# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__((__visibility__("default"), __always_inline__)) 742# else 743# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__((__always_inline__)) 744# endif 745#endif 746 747#ifndef _LIBCPP_PREFERRED_OVERLOAD 748# if __has_attribute(__enable_if__) 749# define _LIBCPP_PREFERRED_OVERLOAD __attribute__ ((__enable_if__(true, ""))) 750# endif 751#endif 752 753#ifndef _LIBCPP_HAS_NO_NOEXCEPT 754# define _NOEXCEPT noexcept 755# define _NOEXCEPT_(x) noexcept(x) 756#else 757# define _NOEXCEPT throw() 758# define _NOEXCEPT_(x) 759#endif 760 761#if defined(_LIBCPP_DEBUG_USE_EXCEPTIONS) 762# if !defined(_LIBCPP_DEBUG) 763# error cannot use _LIBCPP_DEBUG_USE_EXCEPTIONS unless _LIBCPP_DEBUG is defined 764# endif 765# define _NOEXCEPT_DEBUG noexcept(false) 766# define _NOEXCEPT_DEBUG_(x) noexcept(false) 767#else 768# define _NOEXCEPT_DEBUG _NOEXCEPT 769# define _NOEXCEPT_DEBUG_(x) _NOEXCEPT_(x) 770#endif 771 772#ifdef _LIBCPP_HAS_NO_UNICODE_CHARS 773typedef unsigned short char16_t; 774typedef unsigned int char32_t; 775#endif // _LIBCPP_HAS_NO_UNICODE_CHARS 776 777#ifndef __SIZEOF_INT128__ 778#define _LIBCPP_HAS_NO_INT128 779#endif 780 781#ifdef _LIBCPP_CXX03_LANG 782# if __has_extension(c_static_assert) 783# define static_assert(__b, __m) _Static_assert(__b, __m) 784# else 785extern "C++" { 786template <bool> struct __static_assert_test; 787template <> struct __static_assert_test<true> {}; 788template <unsigned> struct __static_assert_check {}; 789} 790#define static_assert(__b, __m) \ 791 typedef __static_assert_check<sizeof(__static_assert_test<(__b)>)> \ 792 _LIBCPP_CONCAT(__t, __LINE__) 793# endif // __has_extension(c_static_assert) 794#endif // _LIBCPP_CXX03_LANG 795 796#ifdef _LIBCPP_HAS_NO_DECLTYPE 797// GCC 4.6 provides __decltype in all standard modes. 798#if __has_keyword(__decltype) || _LIBCPP_CLANG_VER >= 304 || _GNUC_VER >= 406 799# define decltype(__x) __decltype(__x) 800#else 801# define decltype(__x) __typeof__(__x) 802#endif 803#endif 804 805#ifdef _LIBCPP_HAS_NO_CONSTEXPR 806#define _LIBCPP_CONSTEXPR 807#else 808#define _LIBCPP_CONSTEXPR constexpr 809#endif 810 811#ifdef _LIBCPP_CXX03_LANG 812#define _LIBCPP_DEFAULT {} 813#else 814#define _LIBCPP_DEFAULT = default; 815#endif 816 817#ifdef _LIBCPP_CXX03_LANG 818#define _LIBCPP_EQUAL_DELETE 819#else 820#define _LIBCPP_EQUAL_DELETE = delete 821#endif 822 823#ifdef __GNUC__ 824#define _NOALIAS __attribute__((__malloc__)) 825#else 826#define _NOALIAS 827#endif 828 829#if __has_feature(cxx_explicit_conversions) || defined(__IBMCPP__) || \ 830 (!defined(_LIBCPP_CXX03_LANG) && defined(__GNUC__)) // All supported GCC versions 831# define _LIBCPP_EXPLICIT explicit 832#else 833# define _LIBCPP_EXPLICIT 834#endif 835 836#if !__has_builtin(__builtin_operator_new) || !__has_builtin(__builtin_operator_delete) 837# define _LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE 838#endif 839 840#ifdef _LIBCPP_HAS_NO_STRONG_ENUMS 841#define _LIBCPP_DECLARE_STRONG_ENUM(x) struct _LIBCPP_TYPE_VIS x { enum __lx 842#define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) \ 843 __lx __v_; \ 844 _LIBCPP_ALWAYS_INLINE x(__lx __v) : __v_(__v) {} \ 845 _LIBCPP_ALWAYS_INLINE explicit x(int __v) : __v_(static_cast<__lx>(__v)) {} \ 846 _LIBCPP_ALWAYS_INLINE operator int() const {return __v_;} \ 847 }; 848#else // _LIBCPP_HAS_NO_STRONG_ENUMS 849#define _LIBCPP_DECLARE_STRONG_ENUM(x) enum class _LIBCPP_ENUM_VIS x 850#define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) 851#endif // _LIBCPP_HAS_NO_STRONG_ENUMS 852 853#ifdef _LIBCPP_DEBUG 854# if _LIBCPP_DEBUG == 0 855# define _LIBCPP_DEBUG_LEVEL 1 856# elif _LIBCPP_DEBUG == 1 857# define _LIBCPP_DEBUG_LEVEL 2 858# else 859# error Supported values for _LIBCPP_DEBUG are 0 and 1 860# endif 861# if !defined(_LIBCPP_BUILDING_LIBRARY) 862# define _LIBCPP_EXTERN_TEMPLATE(...) 863# endif 864#endif 865 866#ifdef _LIBCPP_DISABLE_EXTERN_TEMPLATE 867#define _LIBCPP_EXTERN_TEMPLATE(...) 868#define _LIBCPP_EXTERN_TEMPLATE2(...) 869#endif 870 871#ifndef _LIBCPP_EXTERN_TEMPLATE 872#define _LIBCPP_EXTERN_TEMPLATE(...) extern template __VA_ARGS__; 873#endif 874 875#ifndef _LIBCPP_EXTERN_TEMPLATE2 876#define _LIBCPP_EXTERN_TEMPLATE2(...) extern template __VA_ARGS__; 877#endif 878 879#if defined(__APPLE__) && defined(__LP64__) && !defined(__x86_64__) 880#define _LIBCPP_NONUNIQUE_RTTI_BIT (1ULL << 63) 881#endif 882 883#if defined(__APPLE__) || defined(__FreeBSD__) || defined(_LIBCPP_MSVCRT) || \ 884 defined(__sun__) || defined(__NetBSD__) || defined(__CloudABI__) 885#define _LIBCPP_LOCALE__L_EXTENSIONS 1 886#endif 887 888#if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__)) 889// Most unix variants have catopen. These are the specific ones that don't. 890#if !defined(__BIONIC__) && !defined(_NEWLIB_VERSION) 891#define _LIBCPP_HAS_CATOPEN 1 892#endif 893#endif 894 895#ifdef __FreeBSD__ 896#define _DECLARE_C99_LDBL_MATH 1 897#endif 898 899#if defined(__APPLE__) 900# if !defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && \ 901 defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) 902# define __MAC_OS_X_VERSION_MIN_REQUIRED __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ 903# endif 904# if defined(__MAC_OS_X_VERSION_MIN_REQUIRED) 905# if __MAC_OS_X_VERSION_MIN_REQUIRED < 1060 906# define _LIBCPP_HAS_NO_ALIGNED_ALLOCATION 907# endif 908# endif 909#endif // defined(__APPLE__) 910 911#if defined(__APPLE__) || defined(__FreeBSD__) 912#define _LIBCPP_HAS_DEFAULTRUNELOCALE 913#endif 914 915#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__sun__) 916#define _LIBCPP_WCTYPE_IS_MASK 917#endif 918 919#ifndef _LIBCPP_STD_VER 920# if __cplusplus <= 201103L 921# define _LIBCPP_STD_VER 11 922# elif __cplusplus <= 201402L 923# define _LIBCPP_STD_VER 14 924# elif __cplusplus <= 201703L 925# define _LIBCPP_STD_VER 17 926# else 927# define _LIBCPP_STD_VER 18 // current year, or date of c++2a ratification 928# endif 929#endif // _LIBCPP_STD_VER 930 931#if _LIBCPP_STD_VER > 11 932#define _LIBCPP_DEPRECATED [[deprecated]] 933#else 934#define _LIBCPP_DEPRECATED 935#endif 936 937#if _LIBCPP_STD_VER <= 11 938#define _LIBCPP_EXPLICIT_AFTER_CXX11 939#define _LIBCPP_DEPRECATED_AFTER_CXX11 940#else 941#define _LIBCPP_EXPLICIT_AFTER_CXX11 explicit 942#define _LIBCPP_DEPRECATED_AFTER_CXX11 [[deprecated]] 943#endif 944 945#if _LIBCPP_STD_VER > 11 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR) 946#define _LIBCPP_CONSTEXPR_AFTER_CXX11 constexpr 947#else 948#define _LIBCPP_CONSTEXPR_AFTER_CXX11 949#endif 950 951#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR) 952#define _LIBCPP_CONSTEXPR_AFTER_CXX14 constexpr 953#else 954#define _LIBCPP_CONSTEXPR_AFTER_CXX14 955#endif 956 957// FIXME: Remove all usages of this macro once compilers catch up. 958#if !defined(__cpp_inline_variables) || (__cpp_inline_variables < 201606L) 959# define _LIBCPP_HAS_NO_INLINE_VARIABLES 960#endif 961 962#ifdef _LIBCPP_HAS_NO_RVALUE_REFERENCES 963# define _LIBCPP_EXPLICIT_MOVE(x) _VSTD::move(x) 964#else 965# define _LIBCPP_EXPLICIT_MOVE(x) (x) 966#endif 967 968#ifndef _LIBCPP_HAS_NO_ASAN 969_LIBCPP_FUNC_VIS extern "C" void __sanitizer_annotate_contiguous_container( 970 const void *, const void *, const void *, const void *); 971#endif 972 973// Try to find out if RTTI is disabled. 974// g++ and cl.exe have RTTI on by default and define a macro when it is. 975// g++ only defines the macro in 4.3.2 and onwards. 976#if !defined(_LIBCPP_NO_RTTI) 977# if defined(__GNUC__) && ((__GNUC__ >= 5) || (__GNUC__ == 4 && \ 978 (__GNUC_MINOR__ >= 3 || __GNUC_PATCHLEVEL__ >= 2))) && !defined(__GXX_RTTI) 979# define _LIBCPP_NO_RTTI 980# elif defined(_LIBCPP_COMPILER_MSVC) && !defined(_CPPRTTI) 981# define _LIBCPP_NO_RTTI 982# endif 983#endif 984 985#ifndef _LIBCPP_WEAK 986# define _LIBCPP_WEAK __attribute__((__weak__)) 987#endif 988 989// Thread API 990#if !defined(_LIBCPP_HAS_NO_THREADS) && \ 991 !defined(_LIBCPP_HAS_THREAD_API_PTHREAD) && \ 992 !defined(_LIBCPP_HAS_THREAD_API_WIN32) && \ 993 !defined(_LIBCPP_HAS_THREAD_API_EXTERNAL) 994# if defined(__FreeBSD__) || \ 995 defined(__Fuchsia__) || \ 996 defined(__NetBSD__) || \ 997 defined(__linux__) || \ 998 defined(__APPLE__) || \ 999 defined(__CloudABI__) || \ 1000 defined(__sun__) || \ 1001 (defined(__MINGW32__) && __libcpp_has_include(<pthread.h>)) 1002# define _LIBCPP_HAS_THREAD_API_PTHREAD 1003# elif defined(_LIBCPP_WIN32API) 1004# define _LIBCPP_HAS_THREAD_API_WIN32 1005# else 1006# error "No thread API" 1007# endif // _LIBCPP_HAS_THREAD_API 1008#endif // _LIBCPP_HAS_NO_THREADS 1009 1010#if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_PTHREAD) 1011# error _LIBCPP_HAS_THREAD_API_PTHREAD may only be defined when \ 1012 _LIBCPP_HAS_NO_THREADS is not defined. 1013#endif 1014 1015#if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_EXTERNAL) 1016# error _LIBCPP_HAS_THREAD_API_EXTERNAL may not be defined when \ 1017 _LIBCPP_HAS_NO_THREADS is defined. 1018#endif 1019 1020#if defined(_LIBCPP_HAS_NO_MONOTONIC_CLOCK) && !defined(_LIBCPP_HAS_NO_THREADS) 1021# error _LIBCPP_HAS_NO_MONOTONIC_CLOCK may only be defined when \ 1022 _LIBCPP_HAS_NO_THREADS is defined. 1023#endif 1024 1025// Systems that use capability-based security (FreeBSD with Capsicum, 1026// Nuxi CloudABI) may only provide local filesystem access (using *at()). 1027// Functions like open(), rename(), unlink() and stat() should not be 1028// used, as they attempt to access the global filesystem namespace. 1029#ifdef __CloudABI__ 1030#define _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE 1031#endif 1032 1033// CloudABI is intended for running networked services. Processes do not 1034// have standard input and output channels. 1035#ifdef __CloudABI__ 1036#define _LIBCPP_HAS_NO_STDIN 1037#define _LIBCPP_HAS_NO_STDOUT 1038#endif 1039 1040#if defined(__BIONIC__) || defined(__CloudABI__) || \ 1041 defined(__Fuchsia__) || defined(_LIBCPP_HAS_MUSL_LIBC) 1042#define _LIBCPP_PROVIDES_DEFAULT_RUNE_TABLE 1043#endif 1044 1045// Thread-unsafe functions such as strtok() and localtime() 1046// are not available. 1047#ifdef __CloudABI__ 1048#define _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS 1049#endif 1050 1051#if __has_feature(cxx_atomic) || __has_extension(c_atomic) || __has_keyword(_Atomic) 1052#define _LIBCPP_HAS_C_ATOMIC_IMP 1053#elif _GNUC_VER > 407 1054#define _LIBCPP_HAS_GCC_ATOMIC_IMP 1055#endif 1056 1057#if (!defined(_LIBCPP_HAS_C_ATOMIC_IMP) && !defined(_LIBCPP_HAS_GCC_ATOMIC_IMP)) \ 1058 || defined(_LIBCPP_HAS_NO_THREADS) 1059#define _LIBCPP_HAS_NO_ATOMIC_HEADER 1060#endif 1061 1062#ifndef _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK 1063#define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK 1064#endif 1065 1066#if defined(_LIBCPP_ENABLE_THREAD_SAFETY_ANNOTATIONS) 1067#if defined(__clang__) && __has_attribute(acquire_capability) 1068// Work around the attribute handling in clang. When both __declspec and 1069// __attribute__ are present, the processing goes awry preventing the definition 1070// of the types. 1071#if !defined(_LIBCPP_OBJECT_FORMAT_COFF) 1072#define _LIBCPP_HAS_THREAD_SAFETY_ANNOTATIONS 1073#endif 1074#endif 1075#endif 1076 1077#if __has_attribute(require_constant_initialization) 1078#define _LIBCPP_SAFE_STATIC __attribute__((__require_constant_initialization__)) 1079#else 1080#define _LIBCPP_SAFE_STATIC 1081#endif 1082 1083#if !__has_builtin(__builtin_addressof) && _GNUC_VER < 700 1084# define _LIBCPP_HAS_NO_BUILTIN_ADDRESSOF 1085#endif 1086 1087#if !defined(_LIBCPP_HAS_NO_OFF_T_FUNCTIONS) 1088#if defined(_LIBCPP_MSVCRT) || defined(_NEWLIB_VERSION) 1089#define _LIBCPP_HAS_NO_OFF_T_FUNCTIONS 1090#endif 1091#endif 1092 1093#if __has_attribute(diagnose_if) && !defined(_LIBCPP_DISABLE_ADDITIONAL_DIAGNOSTICS) 1094# define _LIBCPP_DIAGNOSE_WARNING(...) \ 1095 __attribute__((diagnose_if(__VA_ARGS__, "warning"))) 1096# define _LIBCPP_DIAGNOSE_ERROR(...) \ 1097 __attribute__((diagnose_if(__VA_ARGS__, "error"))) 1098#else 1099# define _LIBCPP_DIAGNOSE_WARNING(...) 1100# define _LIBCPP_DIAGNOSE_ERROR(...) 1101#endif 1102 1103#if __has_attribute(fallthough) || _GNUC_VER >= 700 1104// Use a function like macro to imply that it must be followed by a semicolon 1105#define _LIBCPP_FALLTHROUGH() __attribute__((__fallthrough__)) 1106#else 1107#define _LIBCPP_FALLTHROUGH() ((void)0) 1108#endif 1109 1110#if defined(_LIBCPP_ABI_MICROSOFT) && \ 1111 (defined(_LIBCPP_COMPILER_MSVC) || __has_declspec_attribute(empty_bases)) 1112# define _LIBCPP_DECLSPEC_EMPTY_BASES __declspec(empty_bases) 1113#else 1114# define _LIBCPP_DECLSPEC_EMPTY_BASES 1115#endif 1116 1117#if defined(_LIBCPP_ENABLE_CXX17_REMOVED_FEATURES) 1118# define _LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR 1119# define _LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS 1120# define _LIBCPP_ENABLE_CXX17_REMOVED_RANDOM_SHUFFLE 1121# define _LIBCPP_ENABLE_CXX17_REMOVED_BINDERS 1122#endif // _LIBCPP_ENABLE_CXX17_REMOVED_FEATURES 1123 1124#if !defined(__cpp_deduction_guides) || __cpp_deduction_guides < 201611 1125# define _LIBCPP_HAS_NO_DEDUCTION_GUIDES 1126#endif 1127 1128#if !__has_keyword(__is_aggregate) && (_GNUC_VER_NEW < 7001) 1129# define _LIBCPP_HAS_NO_IS_AGGREGATE 1130#endif 1131 1132#if !defined(__cpp_coroutines) || __cpp_coroutines < 201703L 1133# define _LIBCPP_HAS_NO_COROUTINES 1134#endif 1135 1136// Decide whether to use availability macros. 1137#if !defined(_LIBCPP_BUILDING_LIBRARY) && \ 1138 !defined(_LIBCPP_DISABLE_AVAILABILITY) && \ 1139 __has_feature(attribute_availability_with_strict) && \ 1140 __has_feature(attribute_availability_in_templates) 1141#ifdef __APPLE__ 1142#define _LIBCPP_USE_AVAILABILITY_APPLE 1143#endif 1144#endif 1145 1146// Define availability macros. 1147#if defined(_LIBCPP_USE_AVAILABILITY_APPLE) 1148#define _LIBCPP_AVAILABILITY_SHARED_MUTEX \ 1149 __attribute__((availability(macosx,strict,introduced=10.12))) \ 1150 __attribute__((availability(ios,strict,introduced=10.0))) \ 1151 __attribute__((availability(tvos,strict,introduced=10.0))) \ 1152 __attribute__((availability(watchos,strict,introduced=3.0))) 1153#define _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS __attribute__((unavailable)) 1154#define _LIBCPP_AVAILABILITY_BAD_ARRAY_LENGTH __attribute__((unavailable)) 1155#define _LIBCPP_AVAILABILITY_BAD_ANY_CAST __attribute__((unavailable)) 1156#define _LIBCPP_AVAILABILITY_UNCAUGHT_EXCEPTIONS \ 1157 __attribute__((availability(macosx,strict,introduced=10.12))) \ 1158 __attribute__((availability(ios,strict,introduced=10.0))) \ 1159 __attribute__((availability(tvos,strict,introduced=10.0))) \ 1160 __attribute__((availability(watchos,strict,introduced=3.0))) 1161#define _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE \ 1162 __attribute__((availability(macosx,strict,introduced=10.12))) \ 1163 __attribute__((availability(ios,strict,introduced=10.0))) \ 1164 __attribute__((availability(tvos,strict,introduced=10.0))) \ 1165 __attribute__((availability(watchos,strict,introduced=3.0))) 1166#define _LIBCPP_AVAILABILITY_FUTURE_ERROR \ 1167 __attribute__((availability(ios,strict,introduced=6.0))) 1168#define _LIBCPP_AVAILABILITY_TYPEINFO_VTABLE \ 1169 __attribute__((availability(macosx,strict,introduced=10.9))) \ 1170 __attribute__((availability(ios,strict,introduced=7.0))) 1171#define _LIBCPP_AVAILABILITY_LOCALE_CATEGORY \ 1172 __attribute__((availability(macosx,strict,introduced=10.9))) \ 1173 __attribute__((availability(ios,strict,introduced=7.0))) 1174#define _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR \ 1175 __attribute__((availability(macosx,strict,introduced=10.9))) \ 1176 __attribute__((availability(ios,strict,introduced=7.0))) 1177#else 1178#define _LIBCPP_AVAILABILITY_SHARED_MUTEX 1179#define _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS 1180#define _LIBCPP_AVAILABILITY_BAD_ARRAY_LENGTH 1181#define _LIBCPP_AVAILABILITY_BAD_ANY_CAST 1182#define _LIBCPP_AVAILABILITY_UNCAUGHT_EXCEPTIONS 1183#define _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE 1184#define _LIBCPP_AVAILABILITY_FUTURE_ERROR 1185#define _LIBCPP_AVAILABILITY_TYPEINFO_VTABLE 1186#define _LIBCPP_AVAILABILITY_LOCALE_CATEGORY 1187#define _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR 1188#endif 1189 1190// Define availability that depends on _LIBCPP_NO_EXCEPTIONS. 1191#ifdef _LIBCPP_NO_EXCEPTIONS 1192#define _LIBCPP_AVAILABILITY_DYNARRAY 1193#define _LIBCPP_AVAILABILITY_FUTURE 1194#define _LIBCPP_AVAILABILITY_THROW_BAD_ANY_CAST 1195#else 1196#define _LIBCPP_AVAILABILITY_DYNARRAY _LIBCPP_AVAILABILITY_BAD_ARRAY_LENGTH 1197#define _LIBCPP_AVAILABILITY_FUTURE _LIBCPP_AVAILABILITY_FUTURE_ERROR 1198#define _LIBCPP_AVAILABILITY_THROW_BAD_ANY_CAST \ 1199 _LIBCPP_AVAILABILITY_BAD_ANY_CAST 1200#endif 1201 1202// Availability of stream API in the dylib got dropped and re-added. The 1203// extern template should effectively be available at: 1204// availability(macosx,introduced=10.9) 1205// availability(ios,introduced=7.0) 1206#if defined(_LIBCPP_USE_AVAILABILITY_APPLE) && \ 1207 ((defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && \ 1208 __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 1090) || \ 1209 (defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) && \ 1210 __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ < 70000)) 1211#define _LIBCPP_AVAILABILITY_NO_STREAMS_EXTERN_TEMPLATE 1212#endif 1213 1214#if defined(_LIBCPP_COMPILER_IBM) 1215#define _LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO 1216#endif 1217 1218#if defined(_LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO) 1219# define _LIBCPP_PUSH_MACROS 1220# define _LIBCPP_POP_MACROS 1221#else 1222 // Don't warn about macro conflicts when we can restore them at the 1223 // end of the header. 1224# ifndef _LIBCPP_DISABLE_MACRO_CONFLICT_WARNINGS 1225# define _LIBCPP_DISABLE_MACRO_CONFLICT_WARNINGS 1226# endif 1227# if defined(_LIBCPP_COMPILER_MSVC) 1228# define _LIBCPP_PUSH_MACROS \ 1229 __pragma(push_macro("min")) \ 1230 __pragma(push_macro("max")) 1231# define _LIBCPP_POP_MACROS \ 1232 __pragma(pop_macro("min")) \ 1233 __pragma(pop_macro("max")) 1234# else 1235# define _LIBCPP_PUSH_MACROS \ 1236 _Pragma("push_macro(\"min\")") \ 1237 _Pragma("push_macro(\"max\")") 1238# define _LIBCPP_POP_MACROS \ 1239 _Pragma("pop_macro(\"min\")") \ 1240 _Pragma("pop_macro(\"max\")") 1241# endif 1242#endif // defined(_LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO) 1243 1244 1245#endif // __cplusplus 1246 1247#endif // _LIBCPP_CONFIG 1248