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 224# define _LIBCPP_LITTLE_ENDIAN 1 225# define _LIBCPP_BIG_ENDIAN 0 226# define _LIBCPP_SHORT_WCHAR 1 227// Both MinGW and native MSVC provide a "MSVC"-like enviroment 228# define _LIBCPP_MSVCRT_LIKE 229// If mingw not explicitly detected, assume using MS C runtime only. 230# ifndef __MINGW32__ 231# define _LIBCPP_MSVCRT // Using Microsoft's C Runtime library 232# endif 233# if (defined(_M_AMD64) || defined(__x86_64__)) || (defined(_M_ARM) || defined(__arm__)) 234# define _LIBCPP_HAS_BITSCAN64 235# endif 236# if defined(_LIBCPP_MSVCRT) 237# define _LIBCPP_HAS_QUICK_EXIT 238# endif 239 240// Some CRT APIs are unavailable to store apps 241#if defined(WINAPI_FAMILY) 242#include <winapifamily.h> 243#if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) && \ 244 (!defined(WINAPI_PARTITION_SYSTEM) || \ 245 !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_SYSTEM)) 246#define _LIBCPP_WINDOWS_STORE_APP 247#endif 248#endif 249#endif // defined(_WIN32) 250 251#ifdef __sun__ 252# include <sys/isa_defs.h> 253# ifdef _LITTLE_ENDIAN 254# define _LIBCPP_LITTLE_ENDIAN 1 255# define _LIBCPP_BIG_ENDIAN 0 256# else 257# define _LIBCPP_LITTLE_ENDIAN 0 258# define _LIBCPP_BIG_ENDIAN 1 259# endif 260#endif // __sun__ 261 262#if defined(__CloudABI__) 263 // Certain architectures provide arc4random(). Prefer using 264 // arc4random() over /dev/{u,}random to make it possible to obtain 265 // random data even when using sandboxing mechanisms such as chroots, 266 // Capsicum, etc. 267# define _LIBCPP_USING_ARC4_RANDOM 268#elif defined(__native_client__) 269 // NaCl's sandbox (which PNaCl also runs in) doesn't allow filesystem access, 270 // including accesses to the special files under /dev. C++11's 271 // std::random_device is instead exposed through a NaCl syscall. 272# define _LIBCPP_USING_NACL_RANDOM 273#elif defined(_LIBCPP_WIN32API) 274# define _LIBCPP_USING_WIN32_RANDOM 275#else 276# define _LIBCPP_USING_DEV_RANDOM 277#endif 278 279#if !defined(_LIBCPP_LITTLE_ENDIAN) || !defined(_LIBCPP_BIG_ENDIAN) 280# include <endian.h> 281# if __BYTE_ORDER == __LITTLE_ENDIAN 282# define _LIBCPP_LITTLE_ENDIAN 1 283# define _LIBCPP_BIG_ENDIAN 0 284# elif __BYTE_ORDER == __BIG_ENDIAN 285# define _LIBCPP_LITTLE_ENDIAN 0 286# define _LIBCPP_BIG_ENDIAN 1 287# else // __BYTE_ORDER == __BIG_ENDIAN 288# error unable to determine endian 289# endif 290#endif // !defined(_LIBCPP_LITTLE_ENDIAN) || !defined(_LIBCPP_BIG_ENDIAN) 291 292#if __has_attribute(__no_sanitize__) 293#define _LIBCPP_NO_CFI __attribute__((__no_sanitize__("cfi"))) 294#else 295#define _LIBCPP_NO_CFI 296#endif 297 298#if defined(_LIBCPP_COMPILER_CLANG) 299 300// _LIBCPP_ALTERNATE_STRING_LAYOUT is an old name for 301// _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT left here for backward compatibility. 302#if (defined(__APPLE__) && !defined(__i386__) && !defined(__x86_64__) && \ 303 (!defined(__arm__) || __ARM_ARCH_7K__ >= 2)) || \ 304 defined(_LIBCPP_ALTERNATE_STRING_LAYOUT) 305#define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT 306#endif 307 308#if __has_feature(cxx_alignas) 309# define _ALIGNAS_TYPE(x) alignas(x) 310# define _ALIGNAS(x) alignas(x) 311#else 312# define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x)))) 313# define _ALIGNAS(x) __attribute__((__aligned__(x))) 314#endif 315 316#if __cplusplus < 201103L 317typedef __char16_t char16_t; 318typedef __char32_t char32_t; 319#endif 320 321#if !(__has_feature(cxx_exceptions)) && !defined(_LIBCPP_NO_EXCEPTIONS) 322#define _LIBCPP_NO_EXCEPTIONS 323#endif 324 325#if !(__has_feature(cxx_rtti)) && !defined(_LIBCPP_NO_RTTI) 326#define _LIBCPP_NO_RTTI 327#endif 328 329#if !(__has_feature(cxx_strong_enums)) 330#define _LIBCPP_HAS_NO_STRONG_ENUMS 331#endif 332 333#if !(__has_feature(cxx_decltype)) 334#define _LIBCPP_HAS_NO_DECLTYPE 335#endif 336 337#if __has_feature(cxx_attributes) 338# define _LIBCPP_NORETURN [[noreturn]] 339#else 340# define _LIBCPP_NORETURN __attribute__ ((noreturn)) 341#endif 342 343#if !(__has_feature(cxx_lambdas)) 344#define _LIBCPP_HAS_NO_LAMBDAS 345#endif 346 347#if !(__has_feature(cxx_nullptr)) 348# if (__has_extension(cxx_nullptr) || __has_keyword(__nullptr)) && defined(_LIBCPP_ABI_ALWAYS_USE_CXX11_NULLPTR) 349# define nullptr __nullptr 350# else 351# define _LIBCPP_HAS_NO_NULLPTR 352# endif 353#endif 354 355#if !(__has_feature(cxx_rvalue_references)) 356#define _LIBCPP_HAS_NO_RVALUE_REFERENCES 357#endif 358 359#if !(__has_feature(cxx_auto_type)) 360#define _LIBCPP_HAS_NO_AUTO_TYPE 361#endif 362 363#if !(__has_feature(cxx_variadic_templates)) 364#define _LIBCPP_HAS_NO_VARIADICS 365#endif 366 367#if !(__has_feature(cxx_generalized_initializers)) 368#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 369#endif 370 371#if __has_feature(is_base_of) 372# define _LIBCPP_HAS_IS_BASE_OF 373#endif 374 375#if __has_feature(is_final) 376# define _LIBCPP_HAS_IS_FINAL 377#endif 378 379// Objective-C++ features (opt-in) 380#if __has_feature(objc_arc) 381#define _LIBCPP_HAS_OBJC_ARC 382#endif 383 384#if __has_feature(objc_arc_weak) 385#define _LIBCPP_HAS_OBJC_ARC_WEAK 386#endif 387 388#if !(__has_feature(cxx_constexpr)) 389#define _LIBCPP_HAS_NO_CONSTEXPR 390#endif 391 392#if !(__has_feature(cxx_relaxed_constexpr)) 393#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR 394#endif 395 396#if !(__has_feature(cxx_variable_templates)) 397#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 398#endif 399 400#if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L 401#if defined(__FreeBSD__) 402#define _LIBCPP_HAS_QUICK_EXIT 403#define _LIBCPP_HAS_C11_FEATURES 404#elif defined(__Fuchsia__) 405#define _LIBCPP_HAS_QUICK_EXIT 406#define _LIBCPP_HAS_C11_FEATURES 407#elif defined(__linux__) 408#if !defined(_LIBCPP_HAS_MUSL_LIBC) 409#if __GLIBC_PREREQ(2, 15) || defined(__BIONIC__) 410#define _LIBCPP_HAS_QUICK_EXIT 411#endif 412#if __GLIBC_PREREQ(2, 17) 413#define _LIBCPP_HAS_C11_FEATURES 414#endif 415#else // defined(_LIBCPP_HAS_MUSL_LIBC) 416#define _LIBCPP_HAS_QUICK_EXIT 417#define _LIBCPP_HAS_C11_FEATURES 418#endif 419#endif // __linux__ 420#endif 421 422#if !(__has_feature(cxx_noexcept)) 423#define _LIBCPP_HAS_NO_NOEXCEPT 424#endif 425 426#if __has_feature(underlying_type) 427# define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T) 428#endif 429 430#if __has_feature(is_literal) 431# define _LIBCPP_IS_LITERAL(T) __is_literal(T) 432#endif 433 434// Inline namespaces are available in Clang regardless of C++ dialect. 435#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE { 436#define _LIBCPP_END_NAMESPACE_STD } } 437#define _VSTD std::_LIBCPP_NAMESPACE 438 439namespace std { 440 inline namespace _LIBCPP_NAMESPACE { 441 } 442} 443 444#if !defined(_LIBCPP_HAS_NO_ASAN) && !__has_feature(address_sanitizer) 445#define _LIBCPP_HAS_NO_ASAN 446#endif 447 448// Allow for build-time disabling of unsigned integer sanitization 449#if !defined(_LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK) && __has_attribute(no_sanitize) 450#define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK __attribute__((__no_sanitize__("unsigned-integer-overflow"))) 451#endif 452 453#elif defined(_LIBCPP_COMPILER_GCC) 454 455#define _ALIGNAS(x) __attribute__((__aligned__(x))) 456#define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x)))) 457 458#define _LIBCPP_NORETURN __attribute__((noreturn)) 459 460#if _GNUC_VER >= 407 461#define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T) 462#define _LIBCPP_IS_LITERAL(T) __is_literal_type(T) 463#define _LIBCPP_HAS_IS_FINAL 464#endif 465 466#if defined(__GNUC__) && _GNUC_VER >= 403 467# define _LIBCPP_HAS_IS_BASE_OF 468#endif 469 470#if !__EXCEPTIONS 471#define _LIBCPP_NO_EXCEPTIONS 472#endif 473 474// constexpr was added to GCC in 4.6. 475#if _GNUC_VER < 406 476#define _LIBCPP_HAS_NO_CONSTEXPR 477// Can only use constexpr in c++11 mode. 478#elif !defined(__GXX_EXPERIMENTAL_CXX0X__) && __cplusplus < 201103L 479#define _LIBCPP_HAS_NO_CONSTEXPR 480#endif 481 482// Determine if GCC supports relaxed constexpr 483#if !defined(__cpp_constexpr) || __cpp_constexpr < 201304L 484#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR 485#endif 486 487// GCC 5 will support variable templates 488#if !defined(__cpp_variable_templates) || __cpp_variable_templates < 201304L 489#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 490#endif 491 492#ifndef __GXX_EXPERIMENTAL_CXX0X__ 493#define _LIBCPP_HAS_NO_DECLTYPE 494#define _LIBCPP_HAS_NO_NULLPTR 495#define _LIBCPP_HAS_NO_UNICODE_CHARS 496#define _LIBCPP_HAS_NO_VARIADICS 497#define _LIBCPP_HAS_NO_RVALUE_REFERENCES 498#define _LIBCPP_HAS_NO_STRONG_ENUMS 499#define _LIBCPP_HAS_NO_NOEXCEPT 500 501#else // __GXX_EXPERIMENTAL_CXX0X__ 502 503#if _GNUC_VER < 403 504#define _LIBCPP_HAS_NO_RVALUE_REFERENCES 505#endif 506 507 508#if _GNUC_VER < 404 509#define _LIBCPP_HAS_NO_DECLTYPE 510#define _LIBCPP_HAS_NO_UNICODE_CHARS 511#define _LIBCPP_HAS_NO_VARIADICS 512#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 513#endif // _GNUC_VER < 404 514 515#if _GNUC_VER < 406 516#define _LIBCPP_HAS_NO_NOEXCEPT 517#define _LIBCPP_HAS_NO_NULLPTR 518#endif 519 520#endif // __GXX_EXPERIMENTAL_CXX0X__ 521 522#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { inline namespace _LIBCPP_NAMESPACE { 523#define _LIBCPP_END_NAMESPACE_STD } } 524#define _VSTD std::_LIBCPP_NAMESPACE 525 526namespace std { 527 inline namespace _LIBCPP_NAMESPACE { 528 } 529} 530 531#if !defined(_LIBCPP_HAS_NO_ASAN) && !defined(__SANITIZE_ADDRESS__) 532#define _LIBCPP_HAS_NO_ASAN 533#endif 534 535#elif defined(_LIBCPP_COMPILER_MSVC) 536 537#define _LIBCPP_TOSTRING2(x) #x 538#define _LIBCPP_TOSTRING(x) _LIBCPP_TOSTRING2(x) 539#define _LIBCPP_WARNING(x) __pragma(message(__FILE__ "(" _LIBCPP_TOSTRING(__LINE__) ") : warning note: " x)) 540 541#if _MSC_VER < 1900 542#error "MSVC versions prior to Visual Studio 2015 are not supported" 543#endif 544 545#define _LIBCPP_HAS_IS_BASE_OF 546#define _LIBCPP_HAS_NO_CONSTEXPR 547#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR 548#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 549#if _MSC_VER <= 1800 550#define _LIBCPP_HAS_NO_UNICODE_CHARS 551#endif 552#define _LIBCPP_HAS_NO_NOEXCEPT 553#define __alignof__ __alignof 554#define _LIBCPP_NORETURN __declspec(noreturn) 555#define _ALIGNAS(x) __declspec(align(x)) 556#define _LIBCPP_HAS_NO_VARIADICS 557 558#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { 559#define _LIBCPP_END_NAMESPACE_STD } 560#define _VSTD std 561 562# define _LIBCPP_WEAK 563namespace std { 564} 565 566#define _LIBCPP_HAS_NO_ASAN 567 568#elif defined(_LIBCPP_COMPILER_IBM) 569 570#define _ALIGNAS(x) __attribute__((__aligned__(x))) 571#define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x)))) 572#define _ATTRIBUTE(x) __attribute__((x)) 573#define _LIBCPP_NORETURN __attribute__((noreturn)) 574 575#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 576#define _LIBCPP_HAS_NO_NOEXCEPT 577#define _LIBCPP_HAS_NO_NULLPTR 578#define _LIBCPP_HAS_NO_UNICODE_CHARS 579#define _LIBCPP_HAS_IS_BASE_OF 580#define _LIBCPP_HAS_IS_FINAL 581#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 582 583#if defined(_AIX) 584#define __MULTILOCALE_API 585#endif 586 587#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE { 588#define _LIBCPP_END_NAMESPACE_STD } } 589#define _VSTD std::_LIBCPP_NAMESPACE 590 591namespace std { 592 inline namespace _LIBCPP_NAMESPACE { 593 } 594} 595 596#define _LIBCPP_HAS_NO_ASAN 597 598#endif // _LIBCPP_COMPILER_[CLANG|GCC|MSVC|IBM] 599 600#if defined(_LIBCPP_OBJECT_FORMAT_COFF) 601#if defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 602# define _LIBCPP_DLL_VIS 603# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 604# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 605# define _LIBCPP_OVERRIDABLE_FUNC_VIS 606#elif defined(_LIBCPP_BUILDING_LIBRARY) 607# define _LIBCPP_DLL_VIS __declspec(dllexport) 608# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 609# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS _LIBCPP_DLL_VIS 610# define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_DLL_VIS 611#else 612# define _LIBCPP_DLL_VIS __declspec(dllimport) 613# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS _LIBCPP_DLL_VIS 614# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 615# define _LIBCPP_OVERRIDABLE_FUNC_VIS 616#endif 617 618#define _LIBCPP_TYPE_VIS _LIBCPP_DLL_VIS 619#define _LIBCPP_FUNC_VIS _LIBCPP_DLL_VIS 620#define _LIBCPP_EXTERN_VIS _LIBCPP_DLL_VIS 621#define _LIBCPP_EXCEPTION_ABI _LIBCPP_DLL_VIS 622#define _LIBCPP_HIDDEN 623#define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 624#define _LIBCPP_TEMPLATE_VIS 625#define _LIBCPP_FUNC_VIS_ONLY 626#define _LIBCPP_ENUM_VIS 627 628#if defined(_LIBCPP_COMPILER_MSVC) 629# define _LIBCPP_INLINE_VISIBILITY __forceinline 630# define _LIBCPP_ALWAYS_INLINE __forceinline 631# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __forceinline 632#else 633# define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__always_inline__)) 634# define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__)) 635# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__ ((__always_inline__)) 636#endif 637#endif // defined(_LIBCPP_OBJECT_FORMAT_COFF) 638 639#ifndef _LIBCPP_HIDDEN 640#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 641#define _LIBCPP_HIDDEN __attribute__ ((__visibility__("hidden"))) 642#else 643#define _LIBCPP_HIDDEN 644#endif 645#endif 646 647#ifndef _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 648#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 649// The inline should be removed once PR32114 is resolved 650#define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS inline _LIBCPP_HIDDEN 651#else 652#define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 653#endif 654#endif 655 656#ifndef _LIBCPP_FUNC_VIS 657#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 658#define _LIBCPP_FUNC_VIS __attribute__ ((__visibility__("default"))) 659#else 660#define _LIBCPP_FUNC_VIS 661#endif 662#endif 663 664#ifndef _LIBCPP_TYPE_VIS 665# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 666# define _LIBCPP_TYPE_VIS __attribute__ ((__visibility__("default"))) 667# else 668# define _LIBCPP_TYPE_VIS 669# endif 670#endif 671 672#ifndef _LIBCPP_TEMPLATE_VIS 673# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 674# if __has_attribute(__type_visibility__) 675# define _LIBCPP_TEMPLATE_VIS __attribute__ ((__type_visibility__("default"))) 676# else 677# define _LIBCPP_TEMPLATE_VIS __attribute__ ((__visibility__("default"))) 678# endif 679# else 680# define _LIBCPP_TEMPLATE_VIS 681# endif 682#endif 683 684#ifndef _LIBCPP_FUNC_VIS_ONLY 685# define _LIBCPP_FUNC_VIS_ONLY _LIBCPP_FUNC_VIS 686#endif 687 688#ifndef _LIBCPP_EXTERN_VIS 689# define _LIBCPP_EXTERN_VIS 690#endif 691 692#ifndef _LIBCPP_OVERRIDABLE_FUNC_VIS 693# define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_FUNC_VIS 694#endif 695 696#ifndef _LIBCPP_EXCEPTION_ABI 697#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 698#define _LIBCPP_EXCEPTION_ABI __attribute__ ((__visibility__("default"))) 699#else 700#define _LIBCPP_EXCEPTION_ABI 701#endif 702#endif 703 704#ifndef _LIBCPP_ENUM_VIS 705# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__) 706# define _LIBCPP_ENUM_VIS __attribute__ ((__type_visibility__("default"))) 707# else 708# define _LIBCPP_ENUM_VIS 709# endif 710#endif 711 712#ifndef _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 713# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__) 714# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS __attribute__ ((__visibility__("default"))) 715# else 716# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 717# endif 718#endif 719 720#ifndef _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 721# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 722#endif 723 724#ifndef _LIBCPP_INLINE_VISIBILITY 725#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 726#define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__visibility__("hidden"), __always_inline__)) 727#else 728#define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__always_inline__)) 729#endif 730#endif 731 732#ifndef _LIBCPP_ALWAYS_INLINE 733#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 734#define _LIBCPP_ALWAYS_INLINE __attribute__ ((__visibility__("hidden"), __always_inline__)) 735#else 736#define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__)) 737#endif 738#endif 739 740#ifndef _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY 741# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 742# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__((__visibility__("default"), __always_inline__)) 743# else 744# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__((__always_inline__)) 745# endif 746#endif 747 748#ifndef _LIBCPP_PREFERRED_OVERLOAD 749# if __has_attribute(__enable_if__) 750# define _LIBCPP_PREFERRED_OVERLOAD __attribute__ ((__enable_if__(true, ""))) 751# endif 752#endif 753 754#ifndef _LIBCPP_HAS_NO_NOEXCEPT 755# define _NOEXCEPT noexcept 756# define _NOEXCEPT_(x) noexcept(x) 757#else 758# define _NOEXCEPT throw() 759# define _NOEXCEPT_(x) 760#endif 761 762#if defined(_LIBCPP_DEBUG_USE_EXCEPTIONS) 763# if !defined(_LIBCPP_DEBUG) 764# error cannot use _LIBCPP_DEBUG_USE_EXCEPTIONS unless _LIBCPP_DEBUG is defined 765# endif 766# define _NOEXCEPT_DEBUG noexcept(false) 767# define _NOEXCEPT_DEBUG_(x) noexcept(false) 768#else 769# define _NOEXCEPT_DEBUG _NOEXCEPT 770# define _NOEXCEPT_DEBUG_(x) _NOEXCEPT_(x) 771#endif 772 773#ifdef _LIBCPP_HAS_NO_UNICODE_CHARS 774typedef unsigned short char16_t; 775typedef unsigned int char32_t; 776#endif // _LIBCPP_HAS_NO_UNICODE_CHARS 777 778#ifndef __SIZEOF_INT128__ 779#define _LIBCPP_HAS_NO_INT128 780#endif 781 782#ifdef _LIBCPP_CXX03_LANG 783# if __has_extension(c_static_assert) 784# define static_assert(__b, __m) _Static_assert(__b, __m) 785# else 786extern "C++" { 787template <bool> struct __static_assert_test; 788template <> struct __static_assert_test<true> {}; 789template <unsigned> struct __static_assert_check {}; 790} 791#define static_assert(__b, __m) \ 792 typedef __static_assert_check<sizeof(__static_assert_test<(__b)>)> \ 793 _LIBCPP_CONCAT(__t, __LINE__) 794# endif // __has_extension(c_static_assert) 795#endif // _LIBCPP_CXX03_LANG 796 797#ifdef _LIBCPP_HAS_NO_DECLTYPE 798// GCC 4.6 provides __decltype in all standard modes. 799#if __has_keyword(__decltype) || _LIBCPP_CLANG_VER >= 304 || _GNUC_VER >= 406 800# define decltype(__x) __decltype(__x) 801#else 802# define decltype(__x) __typeof__(__x) 803#endif 804#endif 805 806#ifdef _LIBCPP_HAS_NO_CONSTEXPR 807#define _LIBCPP_CONSTEXPR 808#else 809#define _LIBCPP_CONSTEXPR constexpr 810#endif 811 812#ifdef _LIBCPP_CXX03_LANG 813#define _LIBCPP_DEFAULT {} 814#else 815#define _LIBCPP_DEFAULT = default; 816#endif 817 818#ifdef _LIBCPP_CXX03_LANG 819#define _LIBCPP_EQUAL_DELETE 820#else 821#define _LIBCPP_EQUAL_DELETE = delete 822#endif 823 824#ifdef __GNUC__ 825#define _NOALIAS __attribute__((__malloc__)) 826#else 827#define _NOALIAS 828#endif 829 830#if __has_feature(cxx_explicit_conversions) || defined(__IBMCPP__) || \ 831 (!defined(_LIBCPP_CXX03_LANG) && defined(__GNUC__)) // All supported GCC versions 832# define _LIBCPP_EXPLICIT explicit 833#else 834# define _LIBCPP_EXPLICIT 835#endif 836 837#if !__has_builtin(__builtin_operator_new) || !__has_builtin(__builtin_operator_delete) 838# define _LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE 839#endif 840 841#ifdef _LIBCPP_HAS_NO_STRONG_ENUMS 842#define _LIBCPP_DECLARE_STRONG_ENUM(x) struct _LIBCPP_TYPE_VIS x { enum __lx 843#define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) \ 844 __lx __v_; \ 845 _LIBCPP_ALWAYS_INLINE x(__lx __v) : __v_(__v) {} \ 846 _LIBCPP_ALWAYS_INLINE explicit x(int __v) : __v_(static_cast<__lx>(__v)) {} \ 847 _LIBCPP_ALWAYS_INLINE operator int() const {return __v_;} \ 848 }; 849#else // _LIBCPP_HAS_NO_STRONG_ENUMS 850#define _LIBCPP_DECLARE_STRONG_ENUM(x) enum class _LIBCPP_ENUM_VIS x 851#define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) 852#endif // _LIBCPP_HAS_NO_STRONG_ENUMS 853 854#ifdef _LIBCPP_DEBUG 855# if _LIBCPP_DEBUG == 0 856# define _LIBCPP_DEBUG_LEVEL 1 857# elif _LIBCPP_DEBUG == 1 858# define _LIBCPP_DEBUG_LEVEL 2 859# else 860# error Supported values for _LIBCPP_DEBUG are 0 and 1 861# endif 862# if !defined(_LIBCPP_BUILDING_LIBRARY) 863# define _LIBCPP_EXTERN_TEMPLATE(...) 864# endif 865#endif 866 867#ifdef _LIBCPP_DISABLE_EXTERN_TEMPLATE 868#define _LIBCPP_EXTERN_TEMPLATE(...) 869#define _LIBCPP_EXTERN_TEMPLATE2(...) 870#endif 871 872#ifndef _LIBCPP_EXTERN_TEMPLATE 873#define _LIBCPP_EXTERN_TEMPLATE(...) extern template __VA_ARGS__; 874#endif 875 876#ifndef _LIBCPP_EXTERN_TEMPLATE2 877#define _LIBCPP_EXTERN_TEMPLATE2(...) extern template __VA_ARGS__; 878#endif 879 880#if defined(__APPLE__) && defined(__LP64__) && !defined(__x86_64__) 881#define _LIBCPP_NONUNIQUE_RTTI_BIT (1ULL << 63) 882#endif 883 884#if defined(__APPLE__) || defined(__FreeBSD__) || defined(_LIBCPP_MSVCRT) || \ 885 defined(__sun__) || defined(__NetBSD__) || defined(__CloudABI__) 886#define _LIBCPP_LOCALE__L_EXTENSIONS 1 887#endif 888 889#if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__)) 890// Most unix variants have catopen. These are the specific ones that don't. 891#if !defined(__BIONIC__) && !defined(_NEWLIB_VERSION) 892#define _LIBCPP_HAS_CATOPEN 1 893#endif 894#endif 895 896#ifdef __FreeBSD__ 897#define _DECLARE_C99_LDBL_MATH 1 898#endif 899 900#if defined(__APPLE__) 901# if !defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && \ 902 defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) 903# define __MAC_OS_X_VERSION_MIN_REQUIRED __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ 904# endif 905# if defined(__MAC_OS_X_VERSION_MIN_REQUIRED) 906# if __MAC_OS_X_VERSION_MIN_REQUIRED < 1060 907# define _LIBCPP_HAS_NO_ALIGNED_ALLOCATION 908# endif 909# endif 910#endif // defined(__APPLE__) 911 912#if defined(__APPLE__) || defined(__FreeBSD__) 913#define _LIBCPP_HAS_DEFAULTRUNELOCALE 914#endif 915 916#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__sun__) 917#define _LIBCPP_WCTYPE_IS_MASK 918#endif 919 920#ifndef _LIBCPP_STD_VER 921# if __cplusplus <= 201103L 922# define _LIBCPP_STD_VER 11 923# elif __cplusplus <= 201402L 924# define _LIBCPP_STD_VER 14 925# else 926# define _LIBCPP_STD_VER 16 // current year, or date of c++17 ratification 927# endif 928#endif // _LIBCPP_STD_VER 929 930#if _LIBCPP_STD_VER > 11 931#define _LIBCPP_DEPRECATED [[deprecated]] 932#else 933#define _LIBCPP_DEPRECATED 934#endif 935 936#if _LIBCPP_STD_VER <= 11 937#define _LIBCPP_EXPLICIT_AFTER_CXX11 938#define _LIBCPP_DEPRECATED_AFTER_CXX11 939#else 940#define _LIBCPP_EXPLICIT_AFTER_CXX11 explicit 941#define _LIBCPP_DEPRECATED_AFTER_CXX11 [[deprecated]] 942#endif 943 944#if _LIBCPP_STD_VER > 11 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR) 945#define _LIBCPP_CONSTEXPR_AFTER_CXX11 constexpr 946#else 947#define _LIBCPP_CONSTEXPR_AFTER_CXX11 948#endif 949 950#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR) 951#define _LIBCPP_CONSTEXPR_AFTER_CXX14 constexpr 952#else 953#define _LIBCPP_CONSTEXPR_AFTER_CXX14 954#endif 955 956// FIXME: Remove all usages of this macro once compilers catch up. 957#if !defined(__cpp_inline_variables) || (__cpp_inline_variables < 201606L) 958# define _LIBCPP_HAS_NO_INLINE_VARIABLES 959#endif 960 961#ifdef _LIBCPP_HAS_NO_RVALUE_REFERENCES 962# define _LIBCPP_EXPLICIT_MOVE(x) _VSTD::move(x) 963#else 964# define _LIBCPP_EXPLICIT_MOVE(x) (x) 965#endif 966 967#ifndef _LIBCPP_HAS_NO_ASAN 968_LIBCPP_FUNC_VIS extern "C" void __sanitizer_annotate_contiguous_container( 969 const void *, const void *, const void *, const void *); 970#endif 971 972// Try to find out if RTTI is disabled. 973// g++ and cl.exe have RTTI on by default and define a macro when it is. 974// g++ only defines the macro in 4.3.2 and onwards. 975#if !defined(_LIBCPP_NO_RTTI) 976# if defined(__GNUC__) && ((__GNUC__ >= 5) || (__GNUC__ == 4 && \ 977 (__GNUC_MINOR__ >= 3 || __GNUC_PATCHLEVEL__ >= 2))) && !defined(__GXX_RTTI) 978# define _LIBCPP_NO_RTTI 979# elif defined(_LIBCPP_COMPILER_MSVC) && !defined(_CPPRTTI) 980# define _LIBCPP_NO_RTTI 981# endif 982#endif 983 984#ifndef _LIBCPP_WEAK 985# define _LIBCPP_WEAK __attribute__((__weak__)) 986#endif 987 988// Thread API 989#if !defined(_LIBCPP_HAS_NO_THREADS) && \ 990 !defined(_LIBCPP_HAS_THREAD_API_PTHREAD) && \ 991 !defined(_LIBCPP_HAS_THREAD_API_WIN32) && \ 992 !defined(_LIBCPP_HAS_THREAD_API_EXTERNAL) 993# if defined(__FreeBSD__) || \ 994 defined(__Fuchsia__) || \ 995 defined(__NetBSD__) || \ 996 defined(__linux__) || \ 997 defined(__APPLE__) || \ 998 defined(__CloudABI__) || \ 999 defined(__sun__) || \ 1000 (defined(__MINGW32__) && __libcpp_has_include(<pthread.h>)) 1001# define _LIBCPP_HAS_THREAD_API_PTHREAD 1002# elif defined(_LIBCPP_WIN32API) 1003# define _LIBCPP_HAS_THREAD_API_WIN32 1004# else 1005# error "No thread API" 1006# endif // _LIBCPP_HAS_THREAD_API 1007#endif // _LIBCPP_HAS_NO_THREADS 1008 1009#if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_PTHREAD) 1010# error _LIBCPP_HAS_THREAD_API_PTHREAD may only be defined when \ 1011 _LIBCPP_HAS_NO_THREADS is not defined. 1012#endif 1013 1014#if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_EXTERNAL) 1015# error _LIBCPP_HAS_THREAD_API_EXTERNAL may not be defined when \ 1016 _LIBCPP_HAS_NO_THREADS is defined. 1017#endif 1018 1019#if defined(_LIBCPP_HAS_NO_MONOTONIC_CLOCK) && !defined(_LIBCPP_HAS_NO_THREADS) 1020# error _LIBCPP_HAS_NO_MONOTONIC_CLOCK may only be defined when \ 1021 _LIBCPP_HAS_NO_THREADS is defined. 1022#endif 1023 1024// Systems that use capability-based security (FreeBSD with Capsicum, 1025// Nuxi CloudABI) may only provide local filesystem access (using *at()). 1026// Functions like open(), rename(), unlink() and stat() should not be 1027// used, as they attempt to access the global filesystem namespace. 1028#ifdef __CloudABI__ 1029#define _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE 1030#endif 1031 1032// CloudABI is intended for running networked services. Processes do not 1033// have standard input and output channels. 1034#ifdef __CloudABI__ 1035#define _LIBCPP_HAS_NO_STDIN 1036#define _LIBCPP_HAS_NO_STDOUT 1037#endif 1038 1039#if defined(__BIONIC__) || defined(__CloudABI__) || \ 1040 defined(__Fuchsia__) || defined(_LIBCPP_HAS_MUSL_LIBC) 1041#define _LIBCPP_PROVIDES_DEFAULT_RUNE_TABLE 1042#endif 1043 1044// Thread-unsafe functions such as strtok() and localtime() 1045// are not available. 1046#ifdef __CloudABI__ 1047#define _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS 1048#endif 1049 1050#if __has_feature(cxx_atomic) || __has_extension(c_atomic) || __has_keyword(_Atomic) 1051#define _LIBCPP_HAS_C_ATOMIC_IMP 1052#elif _GNUC_VER > 407 1053#define _LIBCPP_HAS_GCC_ATOMIC_IMP 1054#endif 1055 1056#if (!defined(_LIBCPP_HAS_C_ATOMIC_IMP) && !defined(_LIBCPP_HAS_GCC_ATOMIC_IMP)) \ 1057 || defined(_LIBCPP_HAS_NO_THREADS) 1058#define _LIBCPP_HAS_NO_ATOMIC_HEADER 1059#endif 1060 1061#ifndef _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK 1062#define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK 1063#endif 1064 1065#if defined(_LIBCPP_ENABLE_THREAD_SAFETY_ANNOTATIONS) 1066#if defined(__clang__) && __has_attribute(acquire_capability) 1067// Work around the attribute handling in clang. When both __declspec and 1068// __attribute__ are present, the processing goes awry preventing the definition 1069// of the types. 1070#if !defined(_LIBCPP_OBJECT_FORMAT_COFF) 1071#define _LIBCPP_HAS_THREAD_SAFETY_ANNOTATIONS 1072#endif 1073#endif 1074#endif 1075 1076#if __has_attribute(require_constant_initialization) 1077#define _LIBCPP_SAFE_STATIC __attribute__((__require_constant_initialization__)) 1078#else 1079#define _LIBCPP_SAFE_STATIC 1080#endif 1081 1082#if !__has_builtin(__builtin_addressof) && _GNUC_VER < 700 1083# define _LIBCPP_HAS_NO_BUILTIN_ADDRESSOF 1084#endif 1085 1086#if !defined(_LIBCPP_HAS_NO_OFF_T_FUNCTIONS) 1087#if defined(_LIBCPP_MSVCRT) || defined(_NEWLIB_VERSION) 1088#define _LIBCPP_HAS_NO_OFF_T_FUNCTIONS 1089#endif 1090#endif 1091 1092#if __has_attribute(diagnose_if) && !defined(_LIBCPP_DISABLE_ADDITIONAL_DIAGNOSTICS) 1093# define _LIBCPP_DIAGNOSE_WARNING(...) \ 1094 __attribute__((diagnose_if(__VA_ARGS__, "warning"))) 1095# define _LIBCPP_DIAGNOSE_ERROR(...) \ 1096 __attribute__((diagnose_if(__VA_ARGS__, "error"))) 1097#else 1098# define _LIBCPP_DIAGNOSE_WARNING(...) 1099# define _LIBCPP_DIAGNOSE_ERROR(...) 1100#endif 1101 1102#if __has_attribute(fallthough) || _GNUC_VER >= 700 1103// Use a function like macro to imply that it must be followed by a semicolon 1104#define _LIBCPP_FALLTHROUGH() __attribute__((__fallthrough__)) 1105#else 1106#define _LIBCPP_FALLTHROUGH() ((void)0) 1107#endif 1108 1109#if defined(_LIBCPP_ABI_MICROSOFT) && \ 1110 (defined(_LIBCPP_COMPILER_MSVC) || __has_declspec_attribute(empty_bases)) 1111# define _LIBCPP_DECLSPEC_EMPTY_BASES __declspec(empty_bases) 1112#else 1113# define _LIBCPP_DECLSPEC_EMPTY_BASES 1114#endif 1115 1116#if defined(_LIBCPP_ENABLE_CXX17_REMOVED_FEATURES) 1117# define _LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR 1118# define _LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS 1119# define _LIBCPP_ENABLE_CXX17_REMOVED_RANDOM_SHUFFLE 1120# define _LIBCPP_ENABLE_CXX17_REMOVED_BINDERS 1121#endif // _LIBCPP_ENABLE_CXX17_REMOVED_FEATURES 1122 1123#if !defined(__cpp_deduction_guides) || __cpp_deduction_guides < 201611 1124# define _LIBCPP_HAS_NO_DEDUCTION_GUIDES 1125#endif 1126 1127#if !__has_keyword(__is_aggregate) && (_GNUC_VER_NEW < 7001) 1128# define _LIBCPP_HAS_NO_IS_AGGREGATE 1129#endif 1130 1131#if !defined(__cpp_coroutines) || __cpp_coroutines < 201703L 1132# define _LIBCPP_HAS_NO_COROUTINES 1133#endif 1134 1135#endif // __cplusplus 1136 1137// Decide whether to use availability macros. 1138#if !defined(_LIBCPP_BUILDING_LIBRARY) && \ 1139 !defined(_LIBCPP_DISABLE_AVAILABILITY) && \ 1140 __has_feature(attribute_availability_with_strict) && \ 1141 __has_feature(attribute_availability_in_templates) 1142#ifdef __APPLE__ 1143#define _LIBCPP_USE_AVAILABILITY_APPLE 1144#endif 1145#endif 1146 1147// Define availability macros. 1148#if defined(_LIBCPP_USE_AVAILABILITY_APPLE) 1149#define _LIBCPP_AVAILABILITY_SHARED_MUTEX \ 1150 __attribute__((availability(macosx,strict,introduced=10.12))) \ 1151 __attribute__((availability(ios,strict,introduced=10.0))) \ 1152 __attribute__((availability(tvos,strict,introduced=10.0))) \ 1153 __attribute__((availability(watchos,strict,introduced=3.0))) 1154#define _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS __attribute__((unavailable)) 1155#define _LIBCPP_AVAILABILITY_BAD_ARRAY_LENGTH __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_UNCAUGHT_EXCEPTIONS 1182#define _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE 1183#define _LIBCPP_AVAILABILITY_FUTURE_ERROR 1184#define _LIBCPP_AVAILABILITY_TYPEINFO_VTABLE 1185#define _LIBCPP_AVAILABILITY_LOCALE_CATEGORY 1186#define _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR 1187#endif 1188 1189// Define availability that depends on _LIBCPP_NO_EXCEPTIONS. 1190#ifdef _LIBCPP_NO_EXCEPTIONS 1191#define _LIBCPP_AVAILABILITY_DYNARRAY 1192#define _LIBCPP_AVAILABILITY_FUTURE 1193#else 1194#define _LIBCPP_AVAILABILITY_DYNARRAY _LIBCPP_AVAILABILITY_BAD_ARRAY_LENGTH 1195#define _LIBCPP_AVAILABILITY_FUTURE _LIBCPP_AVAILABILITY_FUTURE_ERROR 1196#endif 1197 1198// Availability of stream API in the dylib got dropped and re-added. The 1199// extern template should effectively be available at: 1200// availability(macosx,introduced=10.9) 1201// availability(ios,introduced=7.0) 1202#if defined(_LIBCPP_USE_AVAILABILITY_APPLE) && \ 1203 ((defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && \ 1204 __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ <= 1090) || \ 1205 (defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) && \ 1206 __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ <= 70000)) 1207#define _LIBCPP_AVAILABILITY_NO_STREAMS_EXTERN_TEMPLATE 1208#endif 1209 1210#if defined(_LIBCPP_COMPILER_IBM) 1211#define _LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO 1212#endif 1213 1214#if defined(_LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO) 1215# define _LIBCPP_PUSH_MACROS 1216# define _LIBCPP_POP_MACROS 1217#else 1218 // Don't warn about macro conflicts when we can restore them at the 1219 // end of the header. 1220# ifndef _LIBCPP_DISABLE_MACRO_CONFLICT_WARNINGS 1221# define _LIBCPP_DISABLE_MACRO_CONFLICT_WARNINGS 1222# endif 1223# if defined(_LIBCPP_COMPILER_MSVC) 1224# define _LIBCPP_PUSH_MACROS \ 1225 __pragma(push_macro("min")) \ 1226 __pragma(push_macro("max")) 1227# define _LIBCPP_POP_MACROS \ 1228 __pragma(pop_macro("min")) \ 1229 __pragma(pop_macro("max")) 1230# else 1231# define _LIBCPP_PUSH_MACROS \ 1232 _Pragma("push_macro(\"min\")") \ 1233 _Pragma("push_macro(\"max\")") 1234# define _LIBCPP_POP_MACROS \ 1235 _Pragma("pop_macro(\"min\")") \ 1236 _Pragma("pop_macro(\"max\")") 1237# endif 1238#endif // defined(_LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO) 1239 1240#endif // _LIBCPP_CONFIG 1241