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