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