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 3800 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 represention 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#endif 45 46#define _LIBCPP_CONCAT1(_LIBCPP_X,_LIBCPP_Y) _LIBCPP_X##_LIBCPP_Y 47#define _LIBCPP_CONCAT(_LIBCPP_X,_LIBCPP_Y) _LIBCPP_CONCAT1(_LIBCPP_X,_LIBCPP_Y) 48 49#define _LIBCPP_NAMESPACE _LIBCPP_CONCAT(__,_LIBCPP_ABI_VERSION) 50 51 52#ifndef __has_attribute 53#define __has_attribute(__x) 0 54#endif 55#ifndef __has_builtin 56#define __has_builtin(__x) 0 57#endif 58#ifndef __has_extension 59#define __has_extension(__x) 0 60#endif 61#ifndef __has_feature 62#define __has_feature(__x) 0 63#endif 64// '__is_identifier' returns '0' if '__x' is a reserved identifier provided by 65// the compiler and '1' otherwise. 66#ifndef __is_identifier 67#define __is_identifier(__x) 1 68#endif 69 70 71#ifdef __LITTLE_ENDIAN__ 72#if __LITTLE_ENDIAN__ 73#define _LIBCPP_LITTLE_ENDIAN 1 74#define _LIBCPP_BIG_ENDIAN 0 75#endif // __LITTLE_ENDIAN__ 76#endif // __LITTLE_ENDIAN__ 77 78#ifdef __BIG_ENDIAN__ 79#if __BIG_ENDIAN__ 80#define _LIBCPP_LITTLE_ENDIAN 0 81#define _LIBCPP_BIG_ENDIAN 1 82#endif // __BIG_ENDIAN__ 83#endif // __BIG_ENDIAN__ 84 85#ifdef __BYTE_ORDER__ 86#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 87#define _LIBCPP_LITTLE_ENDIAN 1 88#define _LIBCPP_BIG_ENDIAN 0 89#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 90#define _LIBCPP_LITTLE_ENDIAN 0 91#define _LIBCPP_BIG_ENDIAN 1 92#endif // __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 93#endif // __BYTE_ORDER__ 94 95#ifdef __FreeBSD__ 96# include <sys/endian.h> 97# if _BYTE_ORDER == _LITTLE_ENDIAN 98# define _LIBCPP_LITTLE_ENDIAN 1 99# define _LIBCPP_BIG_ENDIAN 0 100# else // _BYTE_ORDER == _LITTLE_ENDIAN 101# define _LIBCPP_LITTLE_ENDIAN 0 102# define _LIBCPP_BIG_ENDIAN 1 103# endif // _BYTE_ORDER == _LITTLE_ENDIAN 104# ifndef __LONG_LONG_SUPPORTED 105# define _LIBCPP_HAS_NO_LONG_LONG 106# endif // __LONG_LONG_SUPPORTED 107#endif // __FreeBSD__ 108 109#ifdef __NetBSD__ 110# include <sys/endian.h> 111# if _BYTE_ORDER == _LITTLE_ENDIAN 112# define _LIBCPP_LITTLE_ENDIAN 1 113# define _LIBCPP_BIG_ENDIAN 0 114# else // _BYTE_ORDER == _LITTLE_ENDIAN 115# define _LIBCPP_LITTLE_ENDIAN 0 116# define _LIBCPP_BIG_ENDIAN 1 117# endif // _BYTE_ORDER == _LITTLE_ENDIAN 118# define _LIBCPP_HAS_QUICK_EXIT 119#endif // __NetBSD__ 120 121#ifdef _WIN32 122# define _LIBCPP_LITTLE_ENDIAN 1 123# define _LIBCPP_BIG_ENDIAN 0 124// Compiler intrinsics (MSVC) 125#if defined(_MSC_VER) && _MSC_VER >= 1400 126# define _LIBCPP_HAS_IS_BASE_OF 127# endif 128# if defined(_MSC_VER) && !defined(__clang__) 129# define _LIBCPP_MSVC // Using Microsoft Visual C++ compiler 130# define _LIBCPP_TOSTRING2(x) #x 131# define _LIBCPP_TOSTRING(x) _LIBCPP_TOSTRING2(x) 132# define _LIBCPP_WARNING(x) __pragma(message(__FILE__ "(" _LIBCPP_TOSTRING(__LINE__) ") : warning note: " x)) 133# endif 134# // If mingw not explicitly detected, assume using MS C runtime only. 135# ifndef __MINGW32__ 136# define _LIBCPP_MSVCRT // Using Microsoft's C Runtime library 137# endif 138#endif // _WIN32 139 140#ifdef __sun__ 141# include <sys/isa_defs.h> 142# ifdef _LITTLE_ENDIAN 143# define _LIBCPP_LITTLE_ENDIAN 1 144# define _LIBCPP_BIG_ENDIAN 0 145# else 146# define _LIBCPP_LITTLE_ENDIAN 0 147# define _LIBCPP_BIG_ENDIAN 1 148# endif 149#endif // __sun__ 150 151#if defined(__CloudABI__) 152 // Certain architectures provide arc4random(). Prefer using 153 // arc4random() over /dev/{u,}random to make it possible to obtain 154 // random data even when using sandboxing mechanisms such as chroots, 155 // Capsicum, etc. 156# define _LIBCPP_USING_ARC4_RANDOM 157#elif defined(__native_client__) 158 // NaCl's sandbox (which PNaCl also runs in) doesn't allow filesystem access, 159 // including accesses to the special files under /dev. C++11's 160 // std::random_device is instead exposed through a NaCl syscall. 161# define _LIBCPP_USING_NACL_RANDOM 162#elif defined(_WIN32) 163# define _LIBCPP_USING_WIN32_RANDOM 164#else 165# define _LIBCPP_USING_DEV_RANDOM 166#endif 167 168#if !defined(_LIBCPP_LITTLE_ENDIAN) || !defined(_LIBCPP_BIG_ENDIAN) 169# include <endian.h> 170# if __BYTE_ORDER == __LITTLE_ENDIAN 171# define _LIBCPP_LITTLE_ENDIAN 1 172# define _LIBCPP_BIG_ENDIAN 0 173# elif __BYTE_ORDER == __BIG_ENDIAN 174# define _LIBCPP_LITTLE_ENDIAN 0 175# define _LIBCPP_BIG_ENDIAN 1 176# else // __BYTE_ORDER == __BIG_ENDIAN 177# error unable to determine endian 178# endif 179#endif // !defined(_LIBCPP_LITTLE_ENDIAN) || !defined(_LIBCPP_BIG_ENDIAN) 180 181#ifdef _WIN32 182 183// only really useful for a DLL 184#ifdef _LIBCPP_DLL // this should be a compiler builtin define ideally... 185# ifdef cxx_EXPORTS 186# define _LIBCPP_HIDDEN 187# define _LIBCPP_FUNC_VIS __declspec(dllexport) 188# define _LIBCPP_TYPE_VIS __declspec(dllexport) 189# else 190# define _LIBCPP_HIDDEN 191# define _LIBCPP_FUNC_VIS __declspec(dllimport) 192# define _LIBCPP_TYPE_VIS __declspec(dllimport) 193# endif 194#else 195# define _LIBCPP_HIDDEN 196# define _LIBCPP_FUNC_VIS 197# define _LIBCPP_TYPE_VIS 198#endif 199 200#define _LIBCPP_TYPE_VIS_ONLY 201#define _LIBCPP_FUNC_VIS_ONLY 202 203#ifndef _LIBCPP_INLINE_VISIBILITY 204# ifdef _LIBCPP_MSVC 205# define _LIBCPP_INLINE_VISIBILITY __forceinline 206# else // MinGW GCC and Clang 207# define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__always_inline__)) 208# endif 209#endif 210 211#ifndef _LIBCPP_EXCEPTION_ABI 212#define _LIBCPP_EXCEPTION_ABI _LIBCPP_TYPE_VIS 213#endif 214 215#ifndef _LIBCPP_ALWAYS_INLINE 216# ifdef _LIBCPP_MSVC 217# define _LIBCPP_ALWAYS_INLINE __forceinline 218# endif 219#endif 220 221#endif // _WIN32 222 223#ifndef _LIBCPP_HIDDEN 224#define _LIBCPP_HIDDEN __attribute__ ((__visibility__("hidden"))) 225#endif 226 227#ifndef _LIBCPP_FUNC_VIS 228#define _LIBCPP_FUNC_VIS __attribute__ ((__visibility__("default"))) 229#endif 230 231#ifndef _LIBCPP_TYPE_VIS 232# if __has_attribute(__type_visibility__) 233# define _LIBCPP_TYPE_VIS __attribute__ ((__type_visibility__("default"))) 234# else 235# define _LIBCPP_TYPE_VIS __attribute__ ((__visibility__("default"))) 236# endif 237#endif 238 239#ifndef _LIBCPP_TYPE_VIS_ONLY 240# define _LIBCPP_TYPE_VIS_ONLY _LIBCPP_TYPE_VIS 241#endif 242 243#ifndef _LIBCPP_FUNC_VIS_ONLY 244# define _LIBCPP_FUNC_VIS_ONLY _LIBCPP_FUNC_VIS 245#endif 246 247#ifndef _LIBCPP_INLINE_VISIBILITY 248#define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__visibility__("hidden"), __always_inline__)) 249#endif 250 251#ifndef _LIBCPP_EXCEPTION_ABI 252#define _LIBCPP_EXCEPTION_ABI __attribute__ ((__visibility__("default"))) 253#endif 254 255#ifndef _LIBCPP_ALWAYS_INLINE 256#define _LIBCPP_ALWAYS_INLINE __attribute__ ((__visibility__("hidden"), __always_inline__)) 257#endif 258 259#if defined(__clang__) 260 261// _LIBCPP_ALTERNATE_STRING_LAYOUT is an old name for 262// _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT left here for backward compatibility. 263#if (defined(__APPLE__) && !defined(__i386__) && !defined(__x86_64__) && \ 264 !defined(__arm__)) || \ 265 defined(_LIBCPP_ALTERNATE_STRING_LAYOUT) 266#define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT 267#endif 268 269#if __has_feature(cxx_alignas) 270# define _ALIGNAS_TYPE(x) alignas(x) 271# define _ALIGNAS(x) alignas(x) 272#else 273# define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x)))) 274# define _ALIGNAS(x) __attribute__((__aligned__(x))) 275#endif 276 277#if !__has_feature(cxx_alias_templates) 278#define _LIBCPP_HAS_NO_TEMPLATE_ALIASES 279#endif 280 281#if __cplusplus < 201103L 282typedef __char16_t char16_t; 283typedef __char32_t char32_t; 284#endif 285 286#if !(__has_feature(cxx_exceptions)) 287#define _LIBCPP_NO_EXCEPTIONS 288#endif 289 290#if !(__has_feature(cxx_rtti)) 291#define _LIBCPP_NO_RTTI 292#endif 293 294#if !(__has_feature(cxx_strong_enums)) 295#define _LIBCPP_HAS_NO_STRONG_ENUMS 296#endif 297 298#if !(__has_feature(cxx_decltype)) 299#define _LIBCPP_HAS_NO_DECLTYPE 300#endif 301 302#if __has_feature(cxx_attributes) 303# define _LIBCPP_NORETURN [[noreturn]] 304#else 305# define _LIBCPP_NORETURN __attribute__ ((noreturn)) 306#endif 307 308#define _LIBCPP_UNUSED __attribute__((__unused__)) 309 310#if !(__has_feature(cxx_default_function_template_args)) 311#define _LIBCPP_HAS_NO_DEFAULT_FUNCTION_TEMPLATE_ARGS 312#endif 313 314#if !(__has_feature(cxx_defaulted_functions)) 315#define _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS 316#endif // !(__has_feature(cxx_defaulted_functions)) 317 318#if !(__has_feature(cxx_deleted_functions)) 319#define _LIBCPP_HAS_NO_DELETED_FUNCTIONS 320#endif // !(__has_feature(cxx_deleted_functions)) 321 322#if !(__has_feature(cxx_lambdas)) 323#define _LIBCPP_HAS_NO_LAMBDAS 324#endif 325 326#if !(__has_feature(cxx_nullptr)) 327#define _LIBCPP_HAS_NO_NULLPTR 328#endif 329 330#if !(__has_feature(cxx_rvalue_references)) 331#define _LIBCPP_HAS_NO_RVALUE_REFERENCES 332#endif 333 334#if !(__has_feature(cxx_static_assert)) 335#define _LIBCPP_HAS_NO_STATIC_ASSERT 336#endif 337 338#if !(__has_feature(cxx_auto_type)) 339#define _LIBCPP_HAS_NO_AUTO_TYPE 340#endif 341 342#if !(__has_feature(cxx_access_control_sfinae)) || !__has_feature(cxx_trailing_return) 343#define _LIBCPP_HAS_NO_ADVANCED_SFINAE 344#endif 345 346#if !(__has_feature(cxx_variadic_templates)) 347#define _LIBCPP_HAS_NO_VARIADICS 348#endif 349 350#if !(__has_feature(cxx_trailing_return)) 351#define _LIBCPP_HAS_NO_TRAILING_RETURN 352#endif 353 354#if !(__has_feature(cxx_generalized_initializers)) 355#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 356#endif 357 358#if __has_feature(is_base_of) 359# define _LIBCPP_HAS_IS_BASE_OF 360#endif 361 362#if __has_feature(is_final) 363# define _LIBCPP_HAS_IS_FINAL 364#endif 365 366// Objective-C++ features (opt-in) 367#if __has_feature(objc_arc) 368#define _LIBCPP_HAS_OBJC_ARC 369#endif 370 371#if __has_feature(objc_arc_weak) 372#define _LIBCPP_HAS_OBJC_ARC_WEAK 373#define _LIBCPP_HAS_NO_STRONG_ENUMS 374#endif 375 376#if !(__has_feature(cxx_constexpr)) 377#define _LIBCPP_HAS_NO_CONSTEXPR 378#endif 379 380#if !(__has_feature(cxx_relaxed_constexpr)) 381#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR 382#endif 383 384#if !(__has_feature(cxx_variable_templates)) 385#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 386#endif 387 388#if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L 389#if defined(__FreeBSD__) 390#define _LIBCPP_HAS_QUICK_EXIT 391#define _LIBCPP_HAS_C11_FEATURES 392#elif defined(__ANDROID__) 393#define _LIBCPP_HAS_QUICK_EXIT 394#elif defined(__linux__) 395#if !defined(_LIBCPP_HAS_MUSL_LIBC) 396# include <features.h> 397#if __GLIBC_PREREQ(2, 15) 398#define _LIBCPP_HAS_QUICK_EXIT 399#endif 400#if __GLIBC_PREREQ(2, 17) 401#define _LIBCPP_HAS_C11_FEATURES 402#endif 403#else // defined(_LIBCPP_HAS_MUSL_LIBC) 404#define _LIBCPP_HAS_QUICK_EXIT 405#define _LIBCPP_HAS_C11_FEATURES 406#endif 407#endif // __linux__ 408#endif 409 410#if !(__has_feature(cxx_noexcept)) 411#define _LIBCPP_HAS_NO_NOEXCEPT 412#endif 413 414#if __has_feature(underlying_type) 415# define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T) 416#endif 417 418#if __has_feature(is_literal) 419# define _LIBCPP_IS_LITERAL(T) __is_literal(T) 420#endif 421 422// Inline namespaces are available in Clang regardless of C++ dialect. 423#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE { 424#define _LIBCPP_END_NAMESPACE_STD } } 425#define _VSTD std::_LIBCPP_NAMESPACE 426 427namespace std { 428 inline namespace _LIBCPP_NAMESPACE { 429 } 430} 431 432#if !defined(_LIBCPP_HAS_NO_ASAN) && !__has_feature(address_sanitizer) 433#define _LIBCPP_HAS_NO_ASAN 434#endif 435 436// Allow for build-time disabling of unsigned integer sanitization 437#ifndef _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK 438#define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK __attribute((no_sanitize("unsigned-integer-overflow"))) 439#endif 440 441#elif defined(__GNUC__) 442 443#define _ALIGNAS(x) __attribute__((__aligned__(x))) 444#define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x)))) 445 446#define _LIBCPP_NORETURN __attribute__((noreturn)) 447 448#define _LIBCPP_UNUSED __attribute__((__unused__)) 449 450#if _GNUC_VER >= 407 451#define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T) 452#define _LIBCPP_IS_LITERAL(T) __is_literal_type(T) 453#define _LIBCPP_HAS_IS_FINAL 454#endif 455 456#if defined(__GNUC__) && _GNUC_VER >= 403 457# define _LIBCPP_HAS_IS_BASE_OF 458#endif 459 460#if !__EXCEPTIONS 461#define _LIBCPP_NO_EXCEPTIONS 462#endif 463 464#define _LIBCPP_HAS_NO_TEMPLATE_ALIASES 465 466// constexpr was added to GCC in 4.6. 467#if _GNUC_VER < 406 468#define _LIBCPP_HAS_NO_CONSTEXPR 469// Can only use constexpr in c++11 mode. 470#elif !defined(__GXX_EXPERIMENTAL_CXX0X__) && __cplusplus < 201103L 471#define _LIBCPP_HAS_NO_CONSTEXPR 472#endif 473 474// Determine if GCC supports relaxed constexpr 475#if !defined(__cpp_constexpr) || __cpp_constexpr < 201304L 476#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR 477#endif 478 479// GCC 5 will support variable templates 480#if !defined(__cpp_variable_templates) || __cpp_variable_templates < 201304L 481#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 482#endif 483 484#ifndef __GXX_EXPERIMENTAL_CXX0X__ 485 486#define _LIBCPP_HAS_NO_ADVANCED_SFINAE 487#define _LIBCPP_HAS_NO_DECLTYPE 488#define _LIBCPP_HAS_NO_DEFAULT_FUNCTION_TEMPLATE_ARGS 489#define _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS 490#define _LIBCPP_HAS_NO_DELETED_FUNCTIONS 491#define _LIBCPP_HAS_NO_NULLPTR 492#define _LIBCPP_HAS_NO_STATIC_ASSERT 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_DEFAULT_FUNCTION_TEMPLATE_ARGS 503#define _LIBCPP_HAS_NO_RVALUE_REFERENCES 504#define _LIBCPP_HAS_NO_STATIC_ASSERT 505#endif 506 507 508#if _GNUC_VER < 404 509#define _LIBCPP_HAS_NO_DECLTYPE 510#define _LIBCPP_HAS_NO_DELETED_FUNCTIONS 511#define _LIBCPP_HAS_NO_TRAILING_RETURN 512#define _LIBCPP_HAS_NO_UNICODE_CHARS 513#define _LIBCPP_HAS_NO_VARIADICS 514#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 515#endif // _GNUC_VER < 404 516 517#if _GNUC_VER < 406 518#define _LIBCPP_HAS_NO_NOEXCEPT 519#define _LIBCPP_HAS_NO_NULLPTR 520#endif 521 522#if _GNUC_VER < 407 523#define _LIBCPP_HAS_NO_ADVANCED_SFINAE 524#define _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS 525#endif 526 527#endif // __GXX_EXPERIMENTAL_CXX0X__ 528 529#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { namespace _LIBCPP_NAMESPACE { 530#define _LIBCPP_END_NAMESPACE_STD } } 531#define _VSTD std::_LIBCPP_NAMESPACE 532 533namespace std { 534namespace _LIBCPP_NAMESPACE { 535} 536using namespace _LIBCPP_NAMESPACE __attribute__((__strong__)); 537} 538 539#if !defined(_LIBCPP_HAS_NO_ASAN) && !defined(__SANITIZE_ADDRESS__) 540#define _LIBCPP_HAS_NO_ASAN 541#endif 542 543#elif defined(_LIBCPP_MSVC) 544 545#define _LIBCPP_HAS_NO_TEMPLATE_ALIASES 546#define _LIBCPP_HAS_NO_CONSTEXPR 547#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR 548#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 549#define _LIBCPP_HAS_NO_UNICODE_CHARS 550#define _LIBCPP_HAS_NO_DELETED_FUNCTIONS 551#define _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS 552#define _LIBCPP_HAS_NO_NOEXCEPT 553#define __alignof__ __alignof 554#define _LIBCPP_NORETURN __declspec(noreturn) 555#define _LIBCPP_UNUSED 556#define _ALIGNAS(x) __declspec(align(x)) 557#define _LIBCPP_HAS_NO_VARIADICS 558 559 560 561#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { 562#define _LIBCPP_END_NAMESPACE_STD } 563#define _VSTD std 564 565# define _LIBCPP_WEAK 566namespace std { 567} 568 569#define _LIBCPP_HAS_NO_ASAN 570 571#elif defined(__IBMCPP__) 572 573#define _ALIGNAS(x) __attribute__((__aligned__(x))) 574#define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x)))) 575#define _ATTRIBUTE(x) __attribute__((x)) 576#define _LIBCPP_NORETURN __attribute__((noreturn)) 577#define _LIBCPP_UNUSED 578 579#define _LIBCPP_HAS_NO_DEFAULT_FUNCTION_TEMPLATE_ARGS 580#define _LIBCPP_HAS_NO_TEMPLATE_ALIASES 581#define _LIBCPP_HAS_NO_ADVANCED_SFINAE 582#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 583#define _LIBCPP_HAS_NO_NOEXCEPT 584#define _LIBCPP_HAS_NO_NULLPTR 585#define _LIBCPP_HAS_NO_UNICODE_CHARS 586#define _LIBCPP_HAS_IS_BASE_OF 587#define _LIBCPP_HAS_IS_FINAL 588#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 589 590#if defined(_AIX) 591#define __MULTILOCALE_API 592#endif 593 594#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE { 595#define _LIBCPP_END_NAMESPACE_STD } } 596#define _VSTD std::_LIBCPP_NAMESPACE 597 598namespace std { 599 inline namespace _LIBCPP_NAMESPACE { 600 } 601} 602 603#define _LIBCPP_HAS_NO_ASAN 604 605#endif // __clang__ || __GNUC__ || _MSC_VER || __IBMCPP__ 606 607#ifndef _LIBCPP_HAS_NO_NOEXCEPT 608# define _NOEXCEPT noexcept 609# define _NOEXCEPT_(x) noexcept(x) 610#else 611# define _NOEXCEPT throw() 612# define _NOEXCEPT_(x) 613#endif 614 615#ifdef _LIBCPP_HAS_NO_UNICODE_CHARS 616typedef unsigned short char16_t; 617typedef unsigned int char32_t; 618#endif // _LIBCPP_HAS_NO_UNICODE_CHARS 619 620#ifndef __SIZEOF_INT128__ 621#define _LIBCPP_HAS_NO_INT128 622#endif 623 624#ifdef _LIBCPP_HAS_NO_STATIC_ASSERT 625 626extern "C++" { 627template <bool> struct __static_assert_test; 628template <> struct __static_assert_test<true> {}; 629template <unsigned> struct __static_assert_check {}; 630} 631#define static_assert(__b, __m) \ 632 typedef __static_assert_check<sizeof(__static_assert_test<(__b)>)> \ 633 _LIBCPP_CONCAT(__t, __LINE__) 634 635#endif // _LIBCPP_HAS_NO_STATIC_ASSERT 636 637#ifdef _LIBCPP_HAS_NO_DECLTYPE 638// GCC 4.6 provides __decltype in all standard modes. 639#if !__is_identifier(__decltype) || _GNUC_VER >= 406 640# define decltype(__x) __decltype(__x) 641#else 642# define decltype(__x) __typeof__(__x) 643#endif 644#endif 645 646#ifdef _LIBCPP_HAS_NO_CONSTEXPR 647#define _LIBCPP_CONSTEXPR 648#else 649#define _LIBCPP_CONSTEXPR constexpr 650#endif 651 652#ifdef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS 653#define _LIBCPP_DEFAULT {} 654#else 655#define _LIBCPP_DEFAULT = default; 656#endif 657 658#ifdef __GNUC__ 659#define _NOALIAS __attribute__((__malloc__)) 660#else 661#define _NOALIAS 662#endif 663 664#if __has_feature(cxx_explicit_conversions) || defined(__IBMCPP__) 665# define _LIBCPP_EXPLICIT explicit 666#else 667# define _LIBCPP_EXPLICIT 668#endif 669 670#if !__has_builtin(__builtin_operator_new) || !__has_builtin(__builtin_operator_delete) 671# define _LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE 672#endif 673 674#ifdef _LIBCPP_HAS_NO_STRONG_ENUMS 675#define _LIBCPP_DECLARE_STRONG_ENUM(x) struct _LIBCPP_TYPE_VIS x { enum __lx 676#define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) \ 677 __lx __v_; \ 678 _LIBCPP_ALWAYS_INLINE x(__lx __v) : __v_(__v) {} \ 679 _LIBCPP_ALWAYS_INLINE explicit x(int __v) : __v_(static_cast<__lx>(__v)) {} \ 680 _LIBCPP_ALWAYS_INLINE operator int() const {return __v_;} \ 681 }; 682#else // _LIBCPP_HAS_NO_STRONG_ENUMS 683#define _LIBCPP_DECLARE_STRONG_ENUM(x) enum class _LIBCPP_TYPE_VIS x 684#define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) 685#endif // _LIBCPP_HAS_NO_STRONG_ENUMS 686 687#ifdef _LIBCPP_DEBUG 688# if _LIBCPP_DEBUG == 0 689# define _LIBCPP_DEBUG_LEVEL 1 690# elif _LIBCPP_DEBUG == 1 691# define _LIBCPP_DEBUG_LEVEL 2 692# else 693# error Supported values for _LIBCPP_DEBUG are 0 and 1 694# endif 695# define _LIBCPP_EXTERN_TEMPLATE(...) 696#endif 697 698#ifndef _LIBCPP_EXTERN_TEMPLATE 699#define _LIBCPP_EXTERN_TEMPLATE(...) extern template __VA_ARGS__; 700#endif 701 702#ifndef _LIBCPP_EXTERN_TEMPLATE2 703#define _LIBCPP_EXTERN_TEMPLATE2(...) extern template __VA_ARGS__; 704#endif 705 706#if defined(__APPLE__) && defined(__LP64__) && !defined(__x86_64__) 707#define _LIBCPP_NONUNIQUE_RTTI_BIT (1ULL << 63) 708#endif 709 710#if defined(__APPLE__) || defined(__FreeBSD__) || defined(_WIN32) || \ 711 defined(__sun__) || defined(__NetBSD__) || defined(__CloudABI__) 712#define _LIBCPP_LOCALE__L_EXTENSIONS 1 713#endif 714 715#if !defined(_WIN32) && !defined(__ANDROID__) && !defined(_NEWLIB_VERSION) && \ 716 !defined(__CloudABI__) 717#define _LIBCPP_HAS_CATOPEN 1 718#endif 719 720#ifdef __FreeBSD__ 721#define _DECLARE_C99_LDBL_MATH 1 722#endif 723 724#if defined(__APPLE__) || defined(__FreeBSD__) 725#define _LIBCPP_HAS_DEFAULTRUNELOCALE 726#endif 727 728#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__sun__) 729#define _LIBCPP_WCTYPE_IS_MASK 730#endif 731 732#ifndef _LIBCPP_TRIVIAL_PAIR_COPY_CTOR 733# if defined(__FreeBSD__) 734// Making the std::pair copy constructor trivial breaks ABI compatibility with 735// earlier versions of libc++ shipped by FreeBSD, so turn it off by default. 736// See also http://svnweb.freebsd.org/changeset/base/261801 737# define _LIBCPP_TRIVIAL_PAIR_COPY_CTOR 0 738# else 739# define _LIBCPP_TRIVIAL_PAIR_COPY_CTOR 1 740# endif 741#endif 742 743#ifndef _LIBCPP_STD_VER 744# if __cplusplus <= 201103L 745# define _LIBCPP_STD_VER 11 746# elif __cplusplus <= 201402L 747# define _LIBCPP_STD_VER 14 748# else 749# define _LIBCPP_STD_VER 15 // current year, or date of c++17 ratification 750# endif 751#endif // _LIBCPP_STD_VER 752 753#if _LIBCPP_STD_VER > 11 754#define _LIBCPP_DEPRECATED [[deprecated]] 755#else 756#define _LIBCPP_DEPRECATED 757#endif 758 759#if _LIBCPP_STD_VER <= 11 760#define _LIBCPP_EXPLICIT_AFTER_CXX11 761#define _LIBCPP_DEPRECATED_AFTER_CXX11 762#else 763#define _LIBCPP_EXPLICIT_AFTER_CXX11 explicit 764#define _LIBCPP_DEPRECATED_AFTER_CXX11 [[deprecated]] 765#endif 766 767#if _LIBCPP_STD_VER > 11 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR) 768#define _LIBCPP_CONSTEXPR_AFTER_CXX11 constexpr 769#else 770#define _LIBCPP_CONSTEXPR_AFTER_CXX11 771#endif 772 773#ifdef _LIBCPP_HAS_NO_RVALUE_REFERENCES 774# define _LIBCPP_EXPLICIT_MOVE(x) _VSTD::move(x) 775#else 776# define _LIBCPP_EXPLICIT_MOVE(x) (x) 777#endif 778 779#ifndef _LIBCPP_HAS_NO_ASAN 780extern "C" void __sanitizer_annotate_contiguous_container( 781 const void *, const void *, const void *, const void *); 782#endif 783 784// Try to find out if RTTI is disabled. 785// g++ and cl.exe have RTTI on by default and define a macro when it is. 786// g++ only defines the macro in 4.3.2 and onwards. 787#if !defined(_LIBCPP_NO_RTTI) 788# if defined(__GNUC__) && ((__GNUC__ >= 5) || (__GNUC__ == 4 && \ 789 (__GNUC_MINOR__ >= 3 || __GNUC_PATCHLEVEL__ >= 2))) && !defined(__GXX_RTTI) 790# define _LIBCPP_NO_RTTI 791# elif (defined(_MSC_VER) && !defined(__clang__)) && !defined(_CPPRTTI) 792# define _LIBCPP_NO_RTTI 793# endif 794#endif 795 796#ifndef _LIBCPP_WEAK 797# define _LIBCPP_WEAK __attribute__((__weak__)) 798#endif 799 800#if defined(_LIBCPP_HAS_NO_MONOTONIC_CLOCK) && !defined(_LIBCPP_HAS_NO_THREADS) 801# error _LIBCPP_HAS_NO_MONOTONIC_CLOCK may only be defined when \ 802 _LIBCPP_HAS_NO_THREADS is defined. 803#endif 804 805// Systems that use capability-based security (FreeBSD with Capsicum, 806// Nuxi CloudABI) may only provide local filesystem access (using *at()). 807// Functions like open(), rename(), unlink() and stat() should not be 808// used, as they attempt to access the global filesystem namespace. 809#ifdef __CloudABI__ 810#define _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE 811#endif 812 813// CloudABI is intended for running networked services. Processes do not 814// have standard input and output channels. 815#ifdef __CloudABI__ 816#define _LIBCPP_HAS_NO_STDIN 817#define _LIBCPP_HAS_NO_STDOUT 818#endif 819 820#if defined(__ANDROID__) || defined(__CloudABI__) || defined(_LIBCPP_HAS_MUSL_LIBC) 821#define _LIBCPP_PROVIDES_DEFAULT_RUNE_TABLE 822#endif 823 824// Thread-unsafe functions such as strtok(), mbtowc() and localtime() 825// are not available. 826#ifdef __CloudABI__ 827#define _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS 828#endif 829 830#if __has_feature(cxx_atomic) || __has_extension(c_atomic) 831#define _LIBCPP_HAS_C_ATOMIC_IMP 832#elif _GNUC_VER > 407 833#define _LIBCPP_HAS_GCC_ATOMIC_IMP 834#endif 835 836#if (!defined(_LIBCPP_HAS_C_ATOMIC_IMP) && !defined(_LIBCPP_HAS_GCC_ATOMIC_IMP)) \ 837 || defined(_LIBCPP_HAS_NO_THREADS) 838#define _LIBCPP_HAS_NO_ATOMIC_HEADER 839#endif 840 841#ifndef _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK 842#define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK 843#endif 844 845#endif // __cplusplus 846 847#endif // _LIBCPP_CONFIG 848