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#define _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER 16#endif 17 18#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER 19#pragma GCC system_header 20#endif 21 22#ifdef __cplusplus 23 24#ifdef __GNUC__ 25#define _GNUC_VER (__GNUC__ * 100 + __GNUC_MINOR__) 26#else 27#define _GNUC_VER 0 28#endif 29 30#define _LIBCPP_VERSION 4000 31 32#ifndef _LIBCPP_ABI_VERSION 33#define _LIBCPP_ABI_VERSION 1 34#endif 35 36#if defined(_LIBCPP_ABI_UNSTABLE) || _LIBCPP_ABI_VERSION >= 2 37// Change short string representation so that string data starts at offset 0, 38// improving its alignment in some cases. 39#define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT 40// Fix deque iterator type in order to support incomplete types. 41#define _LIBCPP_ABI_INCOMPLETE_TYPES_IN_DEQUE 42// Fix undefined behavior in how std::list stores it's linked nodes. 43#define _LIBCPP_ABI_LIST_REMOVE_NODE_POINTER_UB 44// Fix undefined behavior in how __tree stores its end and parent nodes. 45#define _LIBCPP_ABI_TREE_REMOVE_NODE_POINTER_UB 46// Fix undefined behavior in how __hash_table stores it's pointer types 47#define _LIBCPP_ABI_FIX_UNORDERED_NODE_POINTER_UB 48#define _LIBCPP_ABI_FORWARD_LIST_REMOVE_NODE_POINTER_UB 49#define _LIBCPP_ABI_FIX_UNORDERED_CONTAINER_SIZE_TYPE 50#define _LIBCPP_ABI_VARIADIC_LOCK_GUARD 51#elif _LIBCPP_ABI_VERSION == 1 52// Feature macros for disabling pre ABI v1 features. All of these options 53// are deprecated. 54#if defined(__FreeBSD__) 55#define _LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR 56#endif 57#endif 58 59#ifdef _LIBCPP_TRIVIAL_PAIR_COPY_CTOR 60#error "_LIBCPP_TRIVIAL_PAIR_COPY_CTOR" is no longer supported. \ 61 use _LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR instead 62#endif 63 64#define _LIBCPP_CONCAT1(_LIBCPP_X,_LIBCPP_Y) _LIBCPP_X##_LIBCPP_Y 65#define _LIBCPP_CONCAT(_LIBCPP_X,_LIBCPP_Y) _LIBCPP_CONCAT1(_LIBCPP_X,_LIBCPP_Y) 66 67#define _LIBCPP_NAMESPACE _LIBCPP_CONCAT(__,_LIBCPP_ABI_VERSION) 68 69#if __cplusplus < 201103L 70#define _LIBCPP_CXX03_LANG 71#endif 72 73#ifndef __has_attribute 74#define __has_attribute(__x) 0 75#endif 76#ifndef __has_builtin 77#define __has_builtin(__x) 0 78#endif 79#ifndef __has_extension 80#define __has_extension(__x) 0 81#endif 82#ifndef __has_feature 83#define __has_feature(__x) 0 84#endif 85// '__is_identifier' returns '0' if '__x' is a reserved identifier provided by 86// the compiler and '1' otherwise. 87#ifndef __is_identifier 88#define __is_identifier(__x) 1 89#endif 90 91// Need to detect which libc we're using if we're on Linux. 92#if defined(__linux__) 93#include <features.h> 94#if !defined(__GLIBC_PREREQ) 95#define __GLIBC_PREREQ(a, b) 0 96#endif // !defined(__GLIBC_PREREQ) 97#endif // defined(__linux__) 98 99#ifdef __LITTLE_ENDIAN__ 100#if __LITTLE_ENDIAN__ 101#define _LIBCPP_LITTLE_ENDIAN 1 102#define _LIBCPP_BIG_ENDIAN 0 103#endif // __LITTLE_ENDIAN__ 104#endif // __LITTLE_ENDIAN__ 105 106#ifdef __BIG_ENDIAN__ 107#if __BIG_ENDIAN__ 108#define _LIBCPP_LITTLE_ENDIAN 0 109#define _LIBCPP_BIG_ENDIAN 1 110#endif // __BIG_ENDIAN__ 111#endif // __BIG_ENDIAN__ 112 113#ifdef __BYTE_ORDER__ 114#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 115#define _LIBCPP_LITTLE_ENDIAN 1 116#define _LIBCPP_BIG_ENDIAN 0 117#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 118#define _LIBCPP_LITTLE_ENDIAN 0 119#define _LIBCPP_BIG_ENDIAN 1 120#endif // __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 121#endif // __BYTE_ORDER__ 122 123#ifdef __FreeBSD__ 124# include <sys/endian.h> 125# if _BYTE_ORDER == _LITTLE_ENDIAN 126# define _LIBCPP_LITTLE_ENDIAN 1 127# define _LIBCPP_BIG_ENDIAN 0 128# else // _BYTE_ORDER == _LITTLE_ENDIAN 129# define _LIBCPP_LITTLE_ENDIAN 0 130# define _LIBCPP_BIG_ENDIAN 1 131# endif // _BYTE_ORDER == _LITTLE_ENDIAN 132# ifndef __LONG_LONG_SUPPORTED 133# define _LIBCPP_HAS_NO_LONG_LONG 134# endif // __LONG_LONG_SUPPORTED 135#endif // __FreeBSD__ 136 137#ifdef __NetBSD__ 138# include <sys/endian.h> 139# if _BYTE_ORDER == _LITTLE_ENDIAN 140# define _LIBCPP_LITTLE_ENDIAN 1 141# define _LIBCPP_BIG_ENDIAN 0 142# else // _BYTE_ORDER == _LITTLE_ENDIAN 143# define _LIBCPP_LITTLE_ENDIAN 0 144# define _LIBCPP_BIG_ENDIAN 1 145# endif // _BYTE_ORDER == _LITTLE_ENDIAN 146# define _LIBCPP_HAS_QUICK_EXIT 147#endif // __NetBSD__ 148 149#ifdef _WIN32 150# define _LIBCPP_LITTLE_ENDIAN 1 151# define _LIBCPP_BIG_ENDIAN 0 152// Compiler intrinsics (MSVC) 153#if defined(_MSC_VER) && _MSC_VER >= 1400 154# define _LIBCPP_HAS_IS_BASE_OF 155# endif 156# if defined(_MSC_VER) && !defined(__clang__) 157# define _LIBCPP_MSVC // Using Microsoft Visual C++ compiler 158# define _LIBCPP_TOSTRING2(x) #x 159# define _LIBCPP_TOSTRING(x) _LIBCPP_TOSTRING2(x) 160# define _LIBCPP_WARNING(x) __pragma(message(__FILE__ "(" _LIBCPP_TOSTRING(__LINE__) ") : warning note: " x)) 161# endif 162# // If mingw not explicitly detected, assume using MS C runtime only. 163# ifndef __MINGW32__ 164# define _LIBCPP_MSVCRT // Using Microsoft's C Runtime library 165# endif 166#endif // _WIN32 167 168#ifdef __sun__ 169# include <sys/isa_defs.h> 170# ifdef _LITTLE_ENDIAN 171# define _LIBCPP_LITTLE_ENDIAN 1 172# define _LIBCPP_BIG_ENDIAN 0 173# else 174# define _LIBCPP_LITTLE_ENDIAN 0 175# define _LIBCPP_BIG_ENDIAN 1 176# endif 177#endif // __sun__ 178 179#if defined(__CloudABI__) 180 // Certain architectures provide arc4random(). Prefer using 181 // arc4random() over /dev/{u,}random to make it possible to obtain 182 // random data even when using sandboxing mechanisms such as chroots, 183 // Capsicum, etc. 184# define _LIBCPP_USING_ARC4_RANDOM 185#elif defined(__native_client__) 186 // NaCl's sandbox (which PNaCl also runs in) doesn't allow filesystem access, 187 // including accesses to the special files under /dev. C++11's 188 // std::random_device is instead exposed through a NaCl syscall. 189# define _LIBCPP_USING_NACL_RANDOM 190#elif defined(_WIN32) 191# define _LIBCPP_USING_WIN32_RANDOM 192#else 193# define _LIBCPP_USING_DEV_RANDOM 194#endif 195 196#if !defined(_LIBCPP_LITTLE_ENDIAN) || !defined(_LIBCPP_BIG_ENDIAN) 197# include <endian.h> 198# if __BYTE_ORDER == __LITTLE_ENDIAN 199# define _LIBCPP_LITTLE_ENDIAN 1 200# define _LIBCPP_BIG_ENDIAN 0 201# elif __BYTE_ORDER == __BIG_ENDIAN 202# define _LIBCPP_LITTLE_ENDIAN 0 203# define _LIBCPP_BIG_ENDIAN 1 204# else // __BYTE_ORDER == __BIG_ENDIAN 205# error unable to determine endian 206# endif 207#endif // !defined(_LIBCPP_LITTLE_ENDIAN) || !defined(_LIBCPP_BIG_ENDIAN) 208 209#if __has_attribute(__no_sanitize__) 210#define _LIBCPP_NO_CFI __attribute__((__no_sanitize__("cfi"))) 211#else 212#define _LIBCPP_NO_CFI 213#endif 214 215#if defined(__clang__) 216 217// _LIBCPP_ALTERNATE_STRING_LAYOUT is an old name for 218// _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT left here for backward compatibility. 219#if (defined(__APPLE__) && !defined(__i386__) && !defined(__x86_64__) && \ 220 !defined(__arm__)) || \ 221 defined(_LIBCPP_ALTERNATE_STRING_LAYOUT) 222#define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT 223#endif 224 225#if __has_feature(cxx_alignas) 226# define _ALIGNAS_TYPE(x) alignas(x) 227# define _ALIGNAS(x) alignas(x) 228#else 229# define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x)))) 230# define _ALIGNAS(x) __attribute__((__aligned__(x))) 231#endif 232 233#if __cplusplus < 201103L 234typedef __char16_t char16_t; 235typedef __char32_t char32_t; 236#endif 237 238#if !(__has_feature(cxx_exceptions)) && !defined(_LIBCPP_NO_EXCEPTIONS) 239#define _LIBCPP_NO_EXCEPTIONS 240#endif 241 242#if !(__has_feature(cxx_rtti)) 243#define _LIBCPP_NO_RTTI 244#endif 245 246#if !(__has_feature(cxx_strong_enums)) 247#define _LIBCPP_HAS_NO_STRONG_ENUMS 248#endif 249 250#if !(__has_feature(cxx_decltype)) 251#define _LIBCPP_HAS_NO_DECLTYPE 252#endif 253 254#if __has_feature(cxx_attributes) 255# define _LIBCPP_NORETURN [[noreturn]] 256#else 257# define _LIBCPP_NORETURN __attribute__ ((noreturn)) 258#endif 259 260#if !(__has_feature(cxx_deleted_functions)) 261#define _LIBCPP_HAS_NO_DELETED_FUNCTIONS 262#endif // !(__has_feature(cxx_deleted_functions)) 263 264#if !(__has_feature(cxx_lambdas)) 265#define _LIBCPP_HAS_NO_LAMBDAS 266#endif 267 268#if !(__has_feature(cxx_nullptr)) 269#define _LIBCPP_HAS_NO_NULLPTR 270#endif 271 272#if !(__has_feature(cxx_rvalue_references)) 273#define _LIBCPP_HAS_NO_RVALUE_REFERENCES 274#endif 275 276#if !(__has_feature(cxx_auto_type)) 277#define _LIBCPP_HAS_NO_AUTO_TYPE 278#endif 279 280#if !(__has_feature(cxx_variadic_templates)) 281#define _LIBCPP_HAS_NO_VARIADICS 282#endif 283 284#if !(__has_feature(cxx_generalized_initializers)) 285#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 286#endif 287 288#if __has_feature(is_base_of) 289# define _LIBCPP_HAS_IS_BASE_OF 290#endif 291 292#if __has_feature(is_final) 293# define _LIBCPP_HAS_IS_FINAL 294#endif 295 296// Objective-C++ features (opt-in) 297#if __has_feature(objc_arc) 298#define _LIBCPP_HAS_OBJC_ARC 299#endif 300 301#if __has_feature(objc_arc_weak) 302#define _LIBCPP_HAS_OBJC_ARC_WEAK 303#define _LIBCPP_HAS_NO_STRONG_ENUMS 304#endif 305 306#if !(__has_feature(cxx_constexpr)) 307#define _LIBCPP_HAS_NO_CONSTEXPR 308#endif 309 310#if !(__has_feature(cxx_relaxed_constexpr)) 311#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR 312#endif 313 314#if !(__has_feature(cxx_variable_templates)) 315#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 316#endif 317 318#if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L 319#if defined(__FreeBSD__) 320#define _LIBCPP_HAS_QUICK_EXIT 321#define _LIBCPP_HAS_C11_FEATURES 322#elif defined(__Fuchsia__) 323#define _LIBCPP_HAS_QUICK_EXIT 324#define _LIBCPP_HAS_C11_FEATURES 325#elif defined(__linux__) 326#if !defined(_LIBCPP_HAS_MUSL_LIBC) 327#if __GLIBC_PREREQ(2, 15) || defined(__BIONIC__) 328#define _LIBCPP_HAS_QUICK_EXIT 329#endif 330#if __GLIBC_PREREQ(2, 17) 331#define _LIBCPP_HAS_C11_FEATURES 332#endif 333#else // defined(_LIBCPP_HAS_MUSL_LIBC) 334#define _LIBCPP_HAS_QUICK_EXIT 335#define _LIBCPP_HAS_C11_FEATURES 336#endif 337#endif // __linux__ 338#endif 339 340#if !(__has_feature(cxx_noexcept)) 341#define _LIBCPP_HAS_NO_NOEXCEPT 342#endif 343 344#if __has_feature(underlying_type) 345# define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T) 346#endif 347 348#if __has_feature(is_literal) 349# define _LIBCPP_IS_LITERAL(T) __is_literal(T) 350#endif 351 352// Inline namespaces are available in Clang regardless of C++ dialect. 353#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE { 354#define _LIBCPP_END_NAMESPACE_STD } } 355#define _VSTD std::_LIBCPP_NAMESPACE 356 357namespace std { 358 inline namespace _LIBCPP_NAMESPACE { 359 } 360} 361 362#if !defined(_LIBCPP_HAS_NO_ASAN) && !__has_feature(address_sanitizer) 363#define _LIBCPP_HAS_NO_ASAN 364#endif 365 366// Allow for build-time disabling of unsigned integer sanitization 367#if !defined(_LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK) && __has_attribute(no_sanitize) 368#define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK __attribute__((__no_sanitize__("unsigned-integer-overflow"))) 369#endif 370 371#elif defined(__GNUC__) 372 373#define _ALIGNAS(x) __attribute__((__aligned__(x))) 374#define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x)))) 375 376#define _LIBCPP_NORETURN __attribute__((noreturn)) 377 378#if _GNUC_VER >= 407 379#define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T) 380#define _LIBCPP_IS_LITERAL(T) __is_literal_type(T) 381#define _LIBCPP_HAS_IS_FINAL 382#endif 383 384#if defined(__GNUC__) && _GNUC_VER >= 403 385# define _LIBCPP_HAS_IS_BASE_OF 386#endif 387 388#if !__EXCEPTIONS 389#define _LIBCPP_NO_EXCEPTIONS 390#endif 391 392// constexpr was added to GCC in 4.6. 393#if _GNUC_VER < 406 394#define _LIBCPP_HAS_NO_CONSTEXPR 395// Can only use constexpr in c++11 mode. 396#elif !defined(__GXX_EXPERIMENTAL_CXX0X__) && __cplusplus < 201103L 397#define _LIBCPP_HAS_NO_CONSTEXPR 398#endif 399 400// Determine if GCC supports relaxed constexpr 401#if !defined(__cpp_constexpr) || __cpp_constexpr < 201304L 402#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR 403#endif 404 405// GCC 5 will support variable templates 406#if !defined(__cpp_variable_templates) || __cpp_variable_templates < 201304L 407#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 408#endif 409 410#ifndef __GXX_EXPERIMENTAL_CXX0X__ 411#define _LIBCPP_HAS_NO_DECLTYPE 412#define _LIBCPP_HAS_NO_DELETED_FUNCTIONS 413#define _LIBCPP_HAS_NO_NULLPTR 414#define _LIBCPP_HAS_NO_UNICODE_CHARS 415#define _LIBCPP_HAS_NO_VARIADICS 416#define _LIBCPP_HAS_NO_RVALUE_REFERENCES 417#define _LIBCPP_HAS_NO_STRONG_ENUMS 418#define _LIBCPP_HAS_NO_NOEXCEPT 419 420#else // __GXX_EXPERIMENTAL_CXX0X__ 421 422#if _GNUC_VER < 403 423#define _LIBCPP_HAS_NO_RVALUE_REFERENCES 424#endif 425 426 427#if _GNUC_VER < 404 428#define _LIBCPP_HAS_NO_DECLTYPE 429#define _LIBCPP_HAS_NO_DELETED_FUNCTIONS 430#define _LIBCPP_HAS_NO_UNICODE_CHARS 431#define _LIBCPP_HAS_NO_VARIADICS 432#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 433#endif // _GNUC_VER < 404 434 435#if _GNUC_VER < 406 436#define _LIBCPP_HAS_NO_NOEXCEPT 437#define _LIBCPP_HAS_NO_NULLPTR 438#endif 439 440#endif // __GXX_EXPERIMENTAL_CXX0X__ 441 442#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { namespace _LIBCPP_NAMESPACE { 443#define _LIBCPP_END_NAMESPACE_STD } } 444#define _VSTD std::_LIBCPP_NAMESPACE 445 446namespace std { 447namespace _LIBCPP_NAMESPACE { 448} 449using namespace _LIBCPP_NAMESPACE __attribute__((__strong__)); 450} 451 452#if !defined(_LIBCPP_HAS_NO_ASAN) && !defined(__SANITIZE_ADDRESS__) 453#define _LIBCPP_HAS_NO_ASAN 454#endif 455 456#elif defined(_LIBCPP_MSVC) 457 458#define _LIBCPP_HAS_NO_CONSTEXPR 459#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR 460#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 461#define _LIBCPP_HAS_NO_UNICODE_CHARS 462#define _LIBCPP_HAS_NO_DELETED_FUNCTIONS 463#define _LIBCPP_HAS_NO_NOEXCEPT 464#define __alignof__ __alignof 465#define _LIBCPP_NORETURN __declspec(noreturn) 466#define _ALIGNAS(x) __declspec(align(x)) 467#define _LIBCPP_HAS_NO_VARIADICS 468 469#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { 470#define _LIBCPP_END_NAMESPACE_STD } 471#define _VSTD std 472 473# define _LIBCPP_WEAK 474namespace std { 475} 476 477#define _LIBCPP_HAS_NO_ASAN 478 479#elif defined(__IBMCPP__) 480 481#define _ALIGNAS(x) __attribute__((__aligned__(x))) 482#define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x)))) 483#define _ATTRIBUTE(x) __attribute__((x)) 484#define _LIBCPP_NORETURN __attribute__((noreturn)) 485 486#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 487#define _LIBCPP_HAS_NO_NOEXCEPT 488#define _LIBCPP_HAS_NO_NULLPTR 489#define _LIBCPP_HAS_NO_UNICODE_CHARS 490#define _LIBCPP_HAS_IS_BASE_OF 491#define _LIBCPP_HAS_IS_FINAL 492#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 493 494#if defined(_AIX) 495#define __MULTILOCALE_API 496#endif 497 498#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE { 499#define _LIBCPP_END_NAMESPACE_STD } } 500#define _VSTD std::_LIBCPP_NAMESPACE 501 502namespace std { 503 inline namespace _LIBCPP_NAMESPACE { 504 } 505} 506 507#define _LIBCPP_HAS_NO_ASAN 508 509#endif // __clang__ || __GNUC__ || _MSC_VER || __IBMCPP__ 510 511 512#ifdef _WIN32 513#if defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 514# define _LIBCPP_DLL_VIS 515# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 516# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 517# define _LIBCPP_OVERRIDABLE_FUNC_VIS 518#elif defined(_LIBCPP_BUILDING_LIBRARY) 519# define _LIBCPP_DLL_VIS __declspec(dllexport) 520# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 521# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS _LIBCPP_DLL_VIS 522# define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_DLL_VIS 523#else 524# define _LIBCPP_DLL_VIS __declspec(dllimport) 525# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS _LIBCPP_DLL_VIS 526# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 527# define _LIBCPP_OVERRIDABLE_FUNC_VIS 528#endif 529 530#define _LIBCPP_TYPE_VIS _LIBCPP_DLL_VIS 531#define _LIBCPP_FUNC_VIS _LIBCPP_DLL_VIS 532#define _LIBCPP_EXCEPTION_ABI _LIBCPP_DLL_VIS 533#define _LIBCPP_HIDDEN 534#define _LIBCPP_TYPE_VIS_ONLY 535#define _LIBCPP_FUNC_VIS_ONLY 536#define _LIBCPP_ENUM_VIS 537#if defined(_LIBCPP_MSVC) 538# define _LIBCPP_INLINE_VISIBILITY __forceinline 539# define _LIBCPP_ALWAYS_INLINE __forceinline 540# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __forceinline 541#else 542# define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__always_inline__)) 543# define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__)) 544# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__ ((__always_inline__)) 545#endif 546#endif // _WIN32 547 548#ifndef _LIBCPP_HIDDEN 549#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 550#define _LIBCPP_HIDDEN __attribute__ ((__visibility__("hidden"))) 551#else 552#define _LIBCPP_HIDDEN 553#endif 554#endif 555 556#ifndef _LIBCPP_FUNC_VIS 557#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 558#define _LIBCPP_FUNC_VIS __attribute__ ((__visibility__("default"))) 559#else 560#define _LIBCPP_FUNC_VIS 561#endif 562#endif 563 564#ifndef _LIBCPP_TYPE_VIS 565# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 566# if __has_attribute(__type_visibility__) 567# define _LIBCPP_TYPE_VIS __attribute__ ((__type_visibility__("default"))) 568# else 569# define _LIBCPP_TYPE_VIS __attribute__ ((__visibility__("default"))) 570# endif 571# else 572# define _LIBCPP_TYPE_VIS 573# endif 574#endif 575 576#ifndef _LIBCPP_TYPE_VIS_ONLY 577# define _LIBCPP_TYPE_VIS_ONLY _LIBCPP_TYPE_VIS 578#endif 579 580#ifndef _LIBCPP_FUNC_VIS_ONLY 581# define _LIBCPP_FUNC_VIS_ONLY _LIBCPP_FUNC_VIS 582#endif 583 584#ifndef _LIBCPP_OVERRIDABLE_FUNC_VIS 585# define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_FUNC_VIS 586#endif 587 588#ifndef _LIBCPP_EXCEPTION_ABI 589#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 590#define _LIBCPP_EXCEPTION_ABI __attribute__ ((__visibility__("default"))) 591#else 592#define _LIBCPP_EXCEPTION_ABI 593#endif 594#endif 595 596#ifndef _LIBCPP_ENUM_VIS 597# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__) 598# define _LIBCPP_ENUM_VIS __attribute__ ((__type_visibility__("default"))) 599# else 600# define _LIBCPP_ENUM_VIS 601# endif 602#endif 603 604#ifndef _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 605# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__) 606# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS __attribute__ ((__type_visibility__("default"))) 607# else 608# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 609# endif 610#endif 611 612#ifndef _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 613# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 614#endif 615 616#ifndef _LIBCPP_INLINE_VISIBILITY 617#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 618#define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__visibility__("hidden"), __always_inline__)) 619#else 620#define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__always_inline__)) 621#endif 622#endif 623 624#ifndef _LIBCPP_ALWAYS_INLINE 625#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 626#define _LIBCPP_ALWAYS_INLINE __attribute__ ((__visibility__("hidden"), __always_inline__)) 627#else 628#define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__)) 629#endif 630#endif 631 632#ifndef _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY 633# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 634# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__((__visibility__("default"), __always_inline__)) 635# else 636# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__((__always_inline__)) 637# endif 638#endif 639 640#ifndef _LIBCPP_PREFERRED_OVERLOAD 641# if __has_attribute(__enable_if__) 642# define _LIBCPP_PREFERRED_OVERLOAD __attribute__ ((__enable_if__(true, ""))) 643# endif 644#endif 645 646#ifndef _LIBCPP_HAS_NO_NOEXCEPT 647# define _NOEXCEPT noexcept 648# define _NOEXCEPT_(x) noexcept(x) 649#else 650# define _NOEXCEPT throw() 651# define _NOEXCEPT_(x) 652#endif 653 654#ifdef _LIBCPP_HAS_NO_UNICODE_CHARS 655typedef unsigned short char16_t; 656typedef unsigned int char32_t; 657#endif // _LIBCPP_HAS_NO_UNICODE_CHARS 658 659#ifndef __SIZEOF_INT128__ 660#define _LIBCPP_HAS_NO_INT128 661#endif 662 663#ifdef _LIBCPP_CXX03_LANG 664# if __has_extension(c_static_assert) 665# define static_assert(__b, __m) _Static_assert(__b, __m) 666# else 667extern "C++" { 668template <bool> struct __static_assert_test; 669template <> struct __static_assert_test<true> {}; 670template <unsigned> struct __static_assert_check {}; 671} 672#define static_assert(__b, __m) \ 673 typedef __static_assert_check<sizeof(__static_assert_test<(__b)>)> \ 674 _LIBCPP_CONCAT(__t, __LINE__) 675# endif // __has_extension(c_static_assert) 676#endif // _LIBCPP_CXX03_LANG 677 678#ifdef _LIBCPP_HAS_NO_DECLTYPE 679// GCC 4.6 provides __decltype in all standard modes. 680#if !__is_identifier(__decltype) || _GNUC_VER >= 406 681# define decltype(__x) __decltype(__x) 682#else 683# define decltype(__x) __typeof__(__x) 684#endif 685#endif 686 687#ifdef _LIBCPP_HAS_NO_CONSTEXPR 688#define _LIBCPP_CONSTEXPR 689#else 690#define _LIBCPP_CONSTEXPR constexpr 691#endif 692 693#ifdef _LIBCPP_CXX03_LANG 694#define _LIBCPP_DEFAULT {} 695#else 696#define _LIBCPP_DEFAULT = default; 697#endif 698 699#ifdef _LIBCPP_HAS_NO_DELETED_FUNCTIONS 700#define _LIBCPP_EQUAL_DELETE 701#else 702#define _LIBCPP_EQUAL_DELETE = delete 703#endif 704 705#ifdef __GNUC__ 706#define _NOALIAS __attribute__((__malloc__)) 707#else 708#define _NOALIAS 709#endif 710 711#if __has_feature(cxx_explicit_conversions) || defined(__IBMCPP__) 712# define _LIBCPP_EXPLICIT explicit 713#else 714# define _LIBCPP_EXPLICIT 715#endif 716 717#if !__has_builtin(__builtin_operator_new) || !__has_builtin(__builtin_operator_delete) 718# define _LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE 719#endif 720 721#ifdef _LIBCPP_HAS_NO_STRONG_ENUMS 722#define _LIBCPP_DECLARE_STRONG_ENUM(x) struct _LIBCPP_TYPE_VIS x { enum __lx 723#define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) \ 724 __lx __v_; \ 725 _LIBCPP_ALWAYS_INLINE x(__lx __v) : __v_(__v) {} \ 726 _LIBCPP_ALWAYS_INLINE explicit x(int __v) : __v_(static_cast<__lx>(__v)) {} \ 727 _LIBCPP_ALWAYS_INLINE operator int() const {return __v_;} \ 728 }; 729#else // _LIBCPP_HAS_NO_STRONG_ENUMS 730#define _LIBCPP_DECLARE_STRONG_ENUM(x) enum class _LIBCPP_ENUM_VIS x 731#define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) 732#endif // _LIBCPP_HAS_NO_STRONG_ENUMS 733 734#ifdef _LIBCPP_DEBUG 735# if _LIBCPP_DEBUG == 0 736# define _LIBCPP_DEBUG_LEVEL 1 737# elif _LIBCPP_DEBUG == 1 738# define _LIBCPP_DEBUG_LEVEL 2 739# else 740# error Supported values for _LIBCPP_DEBUG are 0 and 1 741# endif 742# define _LIBCPP_EXTERN_TEMPLATE(...) 743#endif 744 745#ifndef _LIBCPP_EXTERN_TEMPLATE 746#define _LIBCPP_EXTERN_TEMPLATE(...) extern template __VA_ARGS__; 747#endif 748 749#ifndef _LIBCPP_EXTERN_TEMPLATE2 750#define _LIBCPP_EXTERN_TEMPLATE2(...) extern template __VA_ARGS__; 751#endif 752 753#if defined(__APPLE__) && defined(__LP64__) && !defined(__x86_64__) 754#define _LIBCPP_NONUNIQUE_RTTI_BIT (1ULL << 63) 755#endif 756 757#if defined(__APPLE__) || defined(__FreeBSD__) || defined(_WIN32) || \ 758 defined(__sun__) || defined(__NetBSD__) || defined(__CloudABI__) 759#define _LIBCPP_LOCALE__L_EXTENSIONS 1 760#endif 761 762#if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__)) 763// Most unix variants have catopen. These are the specific ones that don't. 764#if !defined(_WIN32) && !defined(__BIONIC__) && !defined(_NEWLIB_VERSION) 765#define _LIBCPP_HAS_CATOPEN 1 766#endif 767#endif 768 769#ifdef __FreeBSD__ 770#define _DECLARE_C99_LDBL_MATH 1 771#endif 772 773#if defined(__APPLE__) || defined(__FreeBSD__) 774#define _LIBCPP_HAS_DEFAULTRUNELOCALE 775#endif 776 777#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__sun__) 778#define _LIBCPP_WCTYPE_IS_MASK 779#endif 780 781#ifndef _LIBCPP_STD_VER 782# if __cplusplus <= 201103L 783# define _LIBCPP_STD_VER 11 784# elif __cplusplus <= 201402L 785# define _LIBCPP_STD_VER 14 786# else 787# define _LIBCPP_STD_VER 16 // current year, or date of c++17 ratification 788# endif 789#endif // _LIBCPP_STD_VER 790 791#if _LIBCPP_STD_VER > 11 792#define _LIBCPP_DEPRECATED [[deprecated]] 793#else 794#define _LIBCPP_DEPRECATED 795#endif 796 797#if _LIBCPP_STD_VER <= 11 798#define _LIBCPP_EXPLICIT_AFTER_CXX11 799#define _LIBCPP_DEPRECATED_AFTER_CXX11 800#else 801#define _LIBCPP_EXPLICIT_AFTER_CXX11 explicit 802#define _LIBCPP_DEPRECATED_AFTER_CXX11 [[deprecated]] 803#endif 804 805#if _LIBCPP_STD_VER > 11 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR) 806#define _LIBCPP_CONSTEXPR_AFTER_CXX11 constexpr 807#else 808#define _LIBCPP_CONSTEXPR_AFTER_CXX11 809#endif 810 811#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR) 812#define _LIBCPP_CONSTEXPR_AFTER_CXX14 constexpr 813#else 814#define _LIBCPP_CONSTEXPR_AFTER_CXX14 815#endif 816 817// FIXME: Remove all usages of this macro once compilers catch up. 818#if !defined(__cpp_inline_variables) || (__cpp_inline_variables < 201606L) 819# define _LIBCPP_HAS_NO_INLINE_VARIABLES 820#endif 821 822#ifdef _LIBCPP_HAS_NO_RVALUE_REFERENCES 823# define _LIBCPP_EXPLICIT_MOVE(x) _VSTD::move(x) 824#else 825# define _LIBCPP_EXPLICIT_MOVE(x) (x) 826#endif 827 828#ifndef _LIBCPP_HAS_NO_ASAN 829extern "C" void __sanitizer_annotate_contiguous_container( 830 const void *, const void *, const void *, const void *); 831#endif 832 833// Try to find out if RTTI is disabled. 834// g++ and cl.exe have RTTI on by default and define a macro when it is. 835// g++ only defines the macro in 4.3.2 and onwards. 836#if !defined(_LIBCPP_NO_RTTI) 837# if defined(__GNUC__) && ((__GNUC__ >= 5) || (__GNUC__ == 4 && \ 838 (__GNUC_MINOR__ >= 3 || __GNUC_PATCHLEVEL__ >= 2))) && !defined(__GXX_RTTI) 839# define _LIBCPP_NO_RTTI 840# elif (defined(_MSC_VER) && !defined(__clang__)) && !defined(_CPPRTTI) 841# define _LIBCPP_NO_RTTI 842# endif 843#endif 844 845#ifndef _LIBCPP_WEAK 846# define _LIBCPP_WEAK __attribute__((__weak__)) 847#endif 848 849// Thread API 850#if !defined(_LIBCPP_HAS_NO_THREADS) && \ 851 !defined(_LIBCPP_HAS_THREAD_API_PTHREAD) && \ 852 !defined(_LIBCPP_HAS_THREAD_API_EXTERNAL) 853# if defined(__FreeBSD__) || \ 854 defined(__Fuchsia__) || \ 855 defined(__NetBSD__) || \ 856 defined(__linux__) || \ 857 defined(__APPLE__) || \ 858 defined(__CloudABI__) || \ 859 defined(__sun__) 860# define _LIBCPP_HAS_THREAD_API_PTHREAD 861# else 862# error "No thread API" 863# endif // _LIBCPP_HAS_THREAD_API 864#endif // _LIBCPP_HAS_NO_THREADS 865 866#if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_PTHREAD) 867# error _LIBCPP_HAS_THREAD_API_PTHREAD may only be defined when \ 868 _LIBCPP_HAS_NO_THREADS is not defined. 869#endif 870 871#if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_EXTERNAL) 872# error _LIBCPP_HAS_EXTERNAL_THREAD_API may not be defined when \ 873 _LIBCPP_HAS_NO_THREADS is defined. 874#endif 875 876#if defined(_LIBCPP_HAS_NO_MONOTONIC_CLOCK) && !defined(_LIBCPP_HAS_NO_THREADS) 877# error _LIBCPP_HAS_NO_MONOTONIC_CLOCK may only be defined when \ 878 _LIBCPP_HAS_NO_THREADS is defined. 879#endif 880 881// Systems that use capability-based security (FreeBSD with Capsicum, 882// Nuxi CloudABI) may only provide local filesystem access (using *at()). 883// Functions like open(), rename(), unlink() and stat() should not be 884// used, as they attempt to access the global filesystem namespace. 885#ifdef __CloudABI__ 886#define _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE 887#endif 888 889// CloudABI is intended for running networked services. Processes do not 890// have standard input and output channels. 891#ifdef __CloudABI__ 892#define _LIBCPP_HAS_NO_STDIN 893#define _LIBCPP_HAS_NO_STDOUT 894#endif 895 896#if defined(__BIONIC__) || defined(__CloudABI__) || \ 897 defined(_LIBCPP_HAS_MUSL_LIBC) 898#define _LIBCPP_PROVIDES_DEFAULT_RUNE_TABLE 899#endif 900 901// Thread-unsafe functions such as strtok(), mbtowc() and localtime() 902// are not available. 903#ifdef __CloudABI__ 904#define _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS 905#endif 906 907#if __has_feature(cxx_atomic) || __has_extension(c_atomic) 908#define _LIBCPP_HAS_C_ATOMIC_IMP 909#elif _GNUC_VER > 407 910#define _LIBCPP_HAS_GCC_ATOMIC_IMP 911#endif 912 913#if (!defined(_LIBCPP_HAS_C_ATOMIC_IMP) && !defined(_LIBCPP_HAS_GCC_ATOMIC_IMP)) \ 914 || defined(_LIBCPP_HAS_NO_THREADS) 915#define _LIBCPP_HAS_NO_ATOMIC_HEADER 916#endif 917 918#ifndef _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK 919#define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK 920#endif 921 922#if (defined(_LIBCPP_ENABLE_THREAD_SAFETY_ANNOTATIONS) && defined(__clang__) \ 923 && __has_attribute(acquire_capability)) 924#define _LIBCPP_HAS_THREAD_SAFETY_ANNOTATIONS 925#endif 926 927#if __has_attribute(require_constant_initialization) 928#define _LIBCPP_SAFE_STATIC __attribute__((__require_constant_initialization__)) 929#else 930#define _LIBCPP_SAFE_STATIC 931#endif 932 933#if !__has_builtin(__builtin_addressof) && _GNUC_VER < 700 934#define _LIBCPP_HAS_NO_BUILTIN_ADDRESSOF 935#endif 936 937#if !defined(_LIBCPP_HAS_NO_OFF_T_FUNCTIONS) 938#if defined(_WIN32) || defined(_NEWLIB_VERSION) 939#define _LIBCPP_HAS_NO_OFF_T_FUNCTIONS 940#endif 941#endif 942 943#endif // __cplusplus 944 945#endif // _LIBCPP_CONFIG 946