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// Don't use a nullptr_t simulation type in C++03 instead using C++11 nullptr 52// provided under the alternate keyword __nullptr, which changes the mangling 53// of nullptr_t. This option is ABI incompatible with GCC in C++03 mode. 54#define _LIBCPP_ABI_ALWAYS_USE_CXX11_NULLPTR 55// Define the `pointer_safety` enum as a C++11 strongly typed enumeration 56// instead of as a class simulating an enum. If this option is enabled 57// `pointer_safety` and `get_pointer_safety()` will no longer be available 58// in C++03. 59#define _LIBCPP_ABI_POINTER_SAFETY_ENUM_TYPE 60#elif _LIBCPP_ABI_VERSION == 1 61#if !defined(_WIN32) 62// Enable compiling a definition of error_category() into the libc++ dylib. 63#define _LIBCPP_DEPRECATED_ABI_EXTERNAL_ERROR_CATEGORY_CONSTRUCTOR 64#endif 65// Feature macros for disabling pre ABI v1 features. All of these options 66// are deprecated. 67#if defined(__FreeBSD__) 68#define _LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR 69#endif 70#endif 71 72#ifdef _LIBCPP_TRIVIAL_PAIR_COPY_CTOR 73#error "_LIBCPP_TRIVIAL_PAIR_COPY_CTOR" is no longer supported. \ 74 use _LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR instead 75#endif 76 77#define _LIBCPP_CONCAT1(_LIBCPP_X,_LIBCPP_Y) _LIBCPP_X##_LIBCPP_Y 78#define _LIBCPP_CONCAT(_LIBCPP_X,_LIBCPP_Y) _LIBCPP_CONCAT1(_LIBCPP_X,_LIBCPP_Y) 79 80#define _LIBCPP_NAMESPACE _LIBCPP_CONCAT(__,_LIBCPP_ABI_VERSION) 81 82#if __cplusplus < 201103L 83#define _LIBCPP_CXX03_LANG 84#endif 85 86#ifndef __has_attribute 87#define __has_attribute(__x) 0 88#endif 89#ifndef __has_builtin 90#define __has_builtin(__x) 0 91#endif 92#ifndef __has_extension 93#define __has_extension(__x) 0 94#endif 95#ifndef __has_feature 96#define __has_feature(__x) 0 97#endif 98// '__is_identifier' returns '0' if '__x' is a reserved identifier provided by 99// the compiler and '1' otherwise. 100#ifndef __is_identifier 101#define __is_identifier(__x) 1 102#endif 103 104#if defined(__clang__) 105#define _LIBCPP_COMPILER_CLANG 106#elif defined(__GNUC__) 107#define _LIBCPP_COMPILER_GCC 108#elif defined(_MSC_VER) 109#define _LIBCPP_COMPILER_MSVC 110#elif defined(__IBMCPP__) 111#define _LIBCPP_COMPILER_IBM 112#endif 113 114// FIXME: ABI detection should be done via compiler builtin macros. This 115// is just a placeholder until Clang implements such macros. For now assume 116// that Windows compilers pretending to be MSVC++ target the microsoft ABI. 117#if defined(_WIN32) && defined(_MSC_VER) 118# define _LIBCPP_ABI_MICROSOFT 119#else 120# define _LIBCPP_ABI_ITANIUM 121#endif 122 123// Need to detect which libc we're using if we're on Linux. 124#if defined(__linux__) 125#include <features.h> 126#if !defined(__GLIBC_PREREQ) 127#define __GLIBC_PREREQ(a, b) 0 128#endif // !defined(__GLIBC_PREREQ) 129#endif // defined(__linux__) 130 131#ifdef __LITTLE_ENDIAN__ 132#if __LITTLE_ENDIAN__ 133#define _LIBCPP_LITTLE_ENDIAN 1 134#define _LIBCPP_BIG_ENDIAN 0 135#endif // __LITTLE_ENDIAN__ 136#endif // __LITTLE_ENDIAN__ 137 138#ifdef __BIG_ENDIAN__ 139#if __BIG_ENDIAN__ 140#define _LIBCPP_LITTLE_ENDIAN 0 141#define _LIBCPP_BIG_ENDIAN 1 142#endif // __BIG_ENDIAN__ 143#endif // __BIG_ENDIAN__ 144 145#ifdef __BYTE_ORDER__ 146#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 147#define _LIBCPP_LITTLE_ENDIAN 1 148#define _LIBCPP_BIG_ENDIAN 0 149#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 150#define _LIBCPP_LITTLE_ENDIAN 0 151#define _LIBCPP_BIG_ENDIAN 1 152#endif // __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 153#endif // __BYTE_ORDER__ 154 155#ifdef __FreeBSD__ 156# include <sys/endian.h> 157# if _BYTE_ORDER == _LITTLE_ENDIAN 158# define _LIBCPP_LITTLE_ENDIAN 1 159# define _LIBCPP_BIG_ENDIAN 0 160# else // _BYTE_ORDER == _LITTLE_ENDIAN 161# define _LIBCPP_LITTLE_ENDIAN 0 162# define _LIBCPP_BIG_ENDIAN 1 163# endif // _BYTE_ORDER == _LITTLE_ENDIAN 164# ifndef __LONG_LONG_SUPPORTED 165# define _LIBCPP_HAS_NO_LONG_LONG 166# endif // __LONG_LONG_SUPPORTED 167#endif // __FreeBSD__ 168 169#ifdef __NetBSD__ 170# include <sys/endian.h> 171# if _BYTE_ORDER == _LITTLE_ENDIAN 172# define _LIBCPP_LITTLE_ENDIAN 1 173# define _LIBCPP_BIG_ENDIAN 0 174# else // _BYTE_ORDER == _LITTLE_ENDIAN 175# define _LIBCPP_LITTLE_ENDIAN 0 176# define _LIBCPP_BIG_ENDIAN 1 177# endif // _BYTE_ORDER == _LITTLE_ENDIAN 178# define _LIBCPP_HAS_QUICK_EXIT 179#endif // __NetBSD__ 180 181#if defined(_WIN32) 182# define _LIBCPP_WIN32API 1 183# define _LIBCPP_LITTLE_ENDIAN 1 184# define _LIBCPP_BIG_ENDIAN 0 185# define _LIBCPP_SHORT_WCHAR 1 186 187// If mingw not explicitly detected, assume using MS C runtime only. 188# ifndef __MINGW32__ 189# define _LIBCPP_MSVCRT // Using Microsoft's C Runtime library 190# endif 191# if (defined(_M_AMD64) || defined(__x86_64__)) || (defined(_M_ARM) || defined(__arm__)) 192# define _LIBCPP_HAS_BITSCAN64 193# endif 194#endif // defined(_WIN32) 195 196#ifdef __sun__ 197# include <sys/isa_defs.h> 198# ifdef _LITTLE_ENDIAN 199# define _LIBCPP_LITTLE_ENDIAN 1 200# define _LIBCPP_BIG_ENDIAN 0 201# else 202# define _LIBCPP_LITTLE_ENDIAN 0 203# define _LIBCPP_BIG_ENDIAN 1 204# endif 205#endif // __sun__ 206 207#if defined(__CloudABI__) 208 // Certain architectures provide arc4random(). Prefer using 209 // arc4random() over /dev/{u,}random to make it possible to obtain 210 // random data even when using sandboxing mechanisms such as chroots, 211 // Capsicum, etc. 212# define _LIBCPP_USING_ARC4_RANDOM 213#elif defined(__native_client__) 214 // NaCl's sandbox (which PNaCl also runs in) doesn't allow filesystem access, 215 // including accesses to the special files under /dev. C++11's 216 // std::random_device is instead exposed through a NaCl syscall. 217# define _LIBCPP_USING_NACL_RANDOM 218#elif defined(_LIBCPP_WIN32API) 219# define _LIBCPP_USING_WIN32_RANDOM 220#else 221# define _LIBCPP_USING_DEV_RANDOM 222#endif 223 224#if !defined(_LIBCPP_LITTLE_ENDIAN) || !defined(_LIBCPP_BIG_ENDIAN) 225# include <endian.h> 226# if __BYTE_ORDER == __LITTLE_ENDIAN 227# define _LIBCPP_LITTLE_ENDIAN 1 228# define _LIBCPP_BIG_ENDIAN 0 229# elif __BYTE_ORDER == __BIG_ENDIAN 230# define _LIBCPP_LITTLE_ENDIAN 0 231# define _LIBCPP_BIG_ENDIAN 1 232# else // __BYTE_ORDER == __BIG_ENDIAN 233# error unable to determine endian 234# endif 235#endif // !defined(_LIBCPP_LITTLE_ENDIAN) || !defined(_LIBCPP_BIG_ENDIAN) 236 237#if __has_attribute(__no_sanitize__) 238#define _LIBCPP_NO_CFI __attribute__((__no_sanitize__("cfi"))) 239#else 240#define _LIBCPP_NO_CFI 241#endif 242 243#if defined(_LIBCPP_COMPILER_CLANG) 244 245// _LIBCPP_ALTERNATE_STRING_LAYOUT is an old name for 246// _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT left here for backward compatibility. 247#if (defined(__APPLE__) && !defined(__i386__) && !defined(__x86_64__) && \ 248 !defined(__arm__)) || \ 249 defined(_LIBCPP_ALTERNATE_STRING_LAYOUT) 250#define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT 251#endif 252 253#if __has_feature(cxx_alignas) 254# define _ALIGNAS_TYPE(x) alignas(x) 255# define _ALIGNAS(x) alignas(x) 256#else 257# define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x)))) 258# define _ALIGNAS(x) __attribute__((__aligned__(x))) 259#endif 260 261#if __cplusplus < 201103L 262typedef __char16_t char16_t; 263typedef __char32_t char32_t; 264#endif 265 266#if !(__has_feature(cxx_exceptions)) && !defined(_LIBCPP_NO_EXCEPTIONS) 267#define _LIBCPP_NO_EXCEPTIONS 268#endif 269 270#if !(__has_feature(cxx_rtti)) 271#define _LIBCPP_NO_RTTI 272#endif 273 274#if !(__has_feature(cxx_strong_enums)) 275#define _LIBCPP_HAS_NO_STRONG_ENUMS 276#endif 277 278#if !(__has_feature(cxx_decltype)) 279#define _LIBCPP_HAS_NO_DECLTYPE 280#endif 281 282#if __has_feature(cxx_attributes) 283# define _LIBCPP_NORETURN [[noreturn]] 284#else 285# define _LIBCPP_NORETURN __attribute__ ((noreturn)) 286#endif 287 288#if !(__has_feature(cxx_lambdas)) 289#define _LIBCPP_HAS_NO_LAMBDAS 290#endif 291 292#if !(__has_feature(cxx_nullptr)) 293# if __has_extension(cxx_nullptr) && defined(_LIBCPP_ABI_ALWAYS_USE_CXX11_NULLPTR) 294# define nullptr __nullptr 295# else 296# define _LIBCPP_HAS_NO_NULLPTR 297# endif 298#endif 299 300#if !(__has_feature(cxx_rvalue_references)) 301#define _LIBCPP_HAS_NO_RVALUE_REFERENCES 302#endif 303 304#if !(__has_feature(cxx_auto_type)) 305#define _LIBCPP_HAS_NO_AUTO_TYPE 306#endif 307 308#if !(__has_feature(cxx_variadic_templates)) 309#define _LIBCPP_HAS_NO_VARIADICS 310#endif 311 312#if !(__has_feature(cxx_generalized_initializers)) 313#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 314#endif 315 316#if __has_feature(is_base_of) 317# define _LIBCPP_HAS_IS_BASE_OF 318#endif 319 320#if __has_feature(is_final) 321# define _LIBCPP_HAS_IS_FINAL 322#endif 323 324// Objective-C++ features (opt-in) 325#if __has_feature(objc_arc) 326#define _LIBCPP_HAS_OBJC_ARC 327#endif 328 329#if __has_feature(objc_arc_weak) 330#define _LIBCPP_HAS_OBJC_ARC_WEAK 331#define _LIBCPP_HAS_NO_STRONG_ENUMS 332#endif 333 334#if !(__has_feature(cxx_constexpr)) 335#define _LIBCPP_HAS_NO_CONSTEXPR 336#endif 337 338#if !(__has_feature(cxx_relaxed_constexpr)) 339#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR 340#endif 341 342#if !(__has_feature(cxx_variable_templates)) 343#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 344#endif 345 346#if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L 347#if defined(__FreeBSD__) 348#define _LIBCPP_HAS_QUICK_EXIT 349#define _LIBCPP_HAS_C11_FEATURES 350#elif defined(__Fuchsia__) 351#define _LIBCPP_HAS_QUICK_EXIT 352#define _LIBCPP_HAS_C11_FEATURES 353#elif defined(__linux__) 354#if !defined(_LIBCPP_HAS_MUSL_LIBC) 355#if __GLIBC_PREREQ(2, 15) || defined(__BIONIC__) 356#define _LIBCPP_HAS_QUICK_EXIT 357#endif 358#if __GLIBC_PREREQ(2, 17) 359#define _LIBCPP_HAS_C11_FEATURES 360#endif 361#else // defined(_LIBCPP_HAS_MUSL_LIBC) 362#define _LIBCPP_HAS_QUICK_EXIT 363#define _LIBCPP_HAS_C11_FEATURES 364#endif 365#endif // __linux__ 366#endif 367 368#if !(__has_feature(cxx_noexcept)) 369#define _LIBCPP_HAS_NO_NOEXCEPT 370#endif 371 372#if __has_feature(underlying_type) 373# define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T) 374#endif 375 376#if __has_feature(is_literal) 377# define _LIBCPP_IS_LITERAL(T) __is_literal(T) 378#endif 379 380// Inline namespaces are available in Clang regardless of C++ dialect. 381#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE { 382#define _LIBCPP_END_NAMESPACE_STD } } 383#define _VSTD std::_LIBCPP_NAMESPACE 384 385namespace std { 386 inline namespace _LIBCPP_NAMESPACE { 387 } 388} 389 390#if !defined(_LIBCPP_HAS_NO_ASAN) && !__has_feature(address_sanitizer) 391#define _LIBCPP_HAS_NO_ASAN 392#endif 393 394// Allow for build-time disabling of unsigned integer sanitization 395#if !defined(_LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK) && __has_attribute(no_sanitize) 396#define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK __attribute__((__no_sanitize__("unsigned-integer-overflow"))) 397#endif 398 399// A constexpr version of __builtin_memcmp was added in clang 4.0 400#if __has_builtin(__builtin_memcmp) 401# ifdef __apple_build_version__ 402// No shipping version of Apple's clang has constexpr __builtin_memcmp 403# elif __clang_major__ > 3 404# define _LIBCPP_BUILTIN_MEMCMP_ISCONSTEXPR 405# endif 406#endif 407 408#elif defined(_LIBCPP_COMPILER_GCC) 409 410#define _ALIGNAS(x) __attribute__((__aligned__(x))) 411#define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x)))) 412 413#define _LIBCPP_NORETURN __attribute__((noreturn)) 414 415#if _GNUC_VER >= 407 416#define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T) 417#define _LIBCPP_IS_LITERAL(T) __is_literal_type(T) 418#define _LIBCPP_HAS_IS_FINAL 419#endif 420 421#if defined(__GNUC__) && _GNUC_VER >= 403 422# define _LIBCPP_HAS_IS_BASE_OF 423#endif 424 425#if !__EXCEPTIONS 426#define _LIBCPP_NO_EXCEPTIONS 427#endif 428 429// constexpr was added to GCC in 4.6. 430#if _GNUC_VER < 406 431#define _LIBCPP_HAS_NO_CONSTEXPR 432// Can only use constexpr in c++11 mode. 433#elif !defined(__GXX_EXPERIMENTAL_CXX0X__) && __cplusplus < 201103L 434#define _LIBCPP_HAS_NO_CONSTEXPR 435#endif 436 437// Determine if GCC supports relaxed constexpr 438#if !defined(__cpp_constexpr) || __cpp_constexpr < 201304L 439#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR 440#endif 441 442// GCC 5 will support variable templates 443#if !defined(__cpp_variable_templates) || __cpp_variable_templates < 201304L 444#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 445#endif 446 447#ifndef __GXX_EXPERIMENTAL_CXX0X__ 448#define _LIBCPP_HAS_NO_DECLTYPE 449#define _LIBCPP_HAS_NO_NULLPTR 450#define _LIBCPP_HAS_NO_UNICODE_CHARS 451#define _LIBCPP_HAS_NO_VARIADICS 452#define _LIBCPP_HAS_NO_RVALUE_REFERENCES 453#define _LIBCPP_HAS_NO_STRONG_ENUMS 454#define _LIBCPP_HAS_NO_NOEXCEPT 455 456#else // __GXX_EXPERIMENTAL_CXX0X__ 457 458#if _GNUC_VER < 403 459#define _LIBCPP_HAS_NO_RVALUE_REFERENCES 460#endif 461 462 463#if _GNUC_VER < 404 464#define _LIBCPP_HAS_NO_DECLTYPE 465#define _LIBCPP_HAS_NO_UNICODE_CHARS 466#define _LIBCPP_HAS_NO_VARIADICS 467#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 468#endif // _GNUC_VER < 404 469 470#if _GNUC_VER < 406 471#define _LIBCPP_HAS_NO_NOEXCEPT 472#define _LIBCPP_HAS_NO_NULLPTR 473#endif 474 475#endif // __GXX_EXPERIMENTAL_CXX0X__ 476 477#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { namespace _LIBCPP_NAMESPACE { 478#define _LIBCPP_END_NAMESPACE_STD } } 479#define _VSTD std::_LIBCPP_NAMESPACE 480 481namespace std { 482namespace _LIBCPP_NAMESPACE { 483} 484using namespace _LIBCPP_NAMESPACE __attribute__((__strong__)); 485} 486 487#if !defined(_LIBCPP_HAS_NO_ASAN) && !defined(__SANITIZE_ADDRESS__) 488#define _LIBCPP_HAS_NO_ASAN 489#endif 490 491#elif defined(_LIBCPP_COMPILER_MSVC) 492 493#define _LIBCPP_TOSTRING2(x) #x 494#define _LIBCPP_TOSTRING(x) _LIBCPP_TOSTRING2(x) 495#define _LIBCPP_WARNING(x) __pragma(message(__FILE__ "(" _LIBCPP_TOSTRING(__LINE__) ") : warning note: " x)) 496 497#if _MSC_VER < 1900 498#error "MSVC versions prior to Visual Studio 2015 are not supported" 499#endif 500 501#define _LIBCPP_HAS_IS_BASE_OF 502#define _LIBCPP_HAS_NO_CONSTEXPR 503#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR 504#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 505#if _MSC_VER <= 1800 506#define _LIBCPP_HAS_NO_UNICODE_CHARS 507#endif 508#define _LIBCPP_HAS_NO_NOEXCEPT 509#define __alignof__ __alignof 510#define _LIBCPP_NORETURN __declspec(noreturn) 511#define _ALIGNAS(x) __declspec(align(x)) 512#define _LIBCPP_HAS_NO_VARIADICS 513 514#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { 515#define _LIBCPP_END_NAMESPACE_STD } 516#define _VSTD std 517 518# define _LIBCPP_WEAK 519namespace std { 520} 521 522#define _LIBCPP_HAS_NO_ASAN 523 524#elif defined(_LIBCPP_COMPILER_IBM) 525 526#define _ALIGNAS(x) __attribute__((__aligned__(x))) 527#define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x)))) 528#define _ATTRIBUTE(x) __attribute__((x)) 529#define _LIBCPP_NORETURN __attribute__((noreturn)) 530 531#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 532#define _LIBCPP_HAS_NO_NOEXCEPT 533#define _LIBCPP_HAS_NO_NULLPTR 534#define _LIBCPP_HAS_NO_UNICODE_CHARS 535#define _LIBCPP_HAS_IS_BASE_OF 536#define _LIBCPP_HAS_IS_FINAL 537#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 538 539#if defined(_AIX) 540#define __MULTILOCALE_API 541#endif 542 543#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE { 544#define _LIBCPP_END_NAMESPACE_STD } } 545#define _VSTD std::_LIBCPP_NAMESPACE 546 547namespace std { 548 inline namespace _LIBCPP_NAMESPACE { 549 } 550} 551 552#define _LIBCPP_HAS_NO_ASAN 553 554#endif // _LIBCPP_COMPILER_[CLANG|GCC|MSVC|IBM] 555 556#if defined(__ELF__) 557#define _LIBCPP_OBJECT_FORMAT_ELF 1 558#elif defined(__MACH__) 559#define _LIBCPP_OBJECT_FORMAT_MACHO 1 560#else 561#define _LIBCPP_OBJECT_FORMAT_COFF 1 562#endif 563 564#if defined(_LIBCPP_OBJECT_FORMAT_COFF) 565#if defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 566# define _LIBCPP_DLL_VIS 567# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 568# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 569# define _LIBCPP_OVERRIDABLE_FUNC_VIS 570#elif defined(_LIBCPP_BUILDING_LIBRARY) 571# define _LIBCPP_DLL_VIS __declspec(dllexport) 572# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 573# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS _LIBCPP_DLL_VIS 574# define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_DLL_VIS 575#else 576# define _LIBCPP_DLL_VIS __declspec(dllimport) 577# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS _LIBCPP_DLL_VIS 578# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 579# define _LIBCPP_OVERRIDABLE_FUNC_VIS 580#endif 581 582#define _LIBCPP_TYPE_VIS _LIBCPP_DLL_VIS 583#define _LIBCPP_FUNC_VIS _LIBCPP_DLL_VIS 584#define _LIBCPP_EXCEPTION_ABI _LIBCPP_DLL_VIS 585#define _LIBCPP_HIDDEN 586#define _LIBCPP_TEMPLATE_VIS 587#define _LIBCPP_FUNC_VIS_ONLY 588#define _LIBCPP_ENUM_VIS 589 590#if defined(_LIBCPP_COMPILER_MSVC) 591# define _LIBCPP_INLINE_VISIBILITY __forceinline 592# define _LIBCPP_ALWAYS_INLINE __forceinline 593# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __forceinline 594#else 595# define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__always_inline__)) 596# define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__)) 597# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__ ((__always_inline__)) 598#endif 599#endif // defined(_LIBCPP_OBJECT_FORMAT_COFF) 600 601#ifndef _LIBCPP_HIDDEN 602#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 603#define _LIBCPP_HIDDEN __attribute__ ((__visibility__("hidden"))) 604#else 605#define _LIBCPP_HIDDEN 606#endif 607#endif 608 609#ifndef _LIBCPP_FUNC_VIS 610#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 611#define _LIBCPP_FUNC_VIS __attribute__ ((__visibility__("default"))) 612#else 613#define _LIBCPP_FUNC_VIS 614#endif 615#endif 616 617#ifndef _LIBCPP_TYPE_VIS 618# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 619# if __has_attribute(__type_visibility__) 620# define _LIBCPP_TYPE_VIS __attribute__ ((__type_visibility__("default"))) 621# else 622# define _LIBCPP_TYPE_VIS __attribute__ ((__visibility__("default"))) 623# endif 624# else 625# define _LIBCPP_TYPE_VIS 626# endif 627#endif 628 629#ifndef _LIBCPP_TEMPLATE_VIS 630# define _LIBCPP_TEMPLATE_VIS _LIBCPP_TYPE_VIS 631#endif 632 633#ifndef _LIBCPP_FUNC_VIS_ONLY 634# define _LIBCPP_FUNC_VIS_ONLY _LIBCPP_FUNC_VIS 635#endif 636 637#ifndef _LIBCPP_OVERRIDABLE_FUNC_VIS 638# define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_FUNC_VIS 639#endif 640 641#ifndef _LIBCPP_EXCEPTION_ABI 642#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 643#define _LIBCPP_EXCEPTION_ABI __attribute__ ((__visibility__("default"))) 644#else 645#define _LIBCPP_EXCEPTION_ABI 646#endif 647#endif 648 649#ifndef _LIBCPP_ENUM_VIS 650# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__) 651# define _LIBCPP_ENUM_VIS __attribute__ ((__type_visibility__("default"))) 652# else 653# define _LIBCPP_ENUM_VIS 654# endif 655#endif 656 657#ifndef _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 658# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__) 659# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS __attribute__ ((__type_visibility__("default"))) 660# else 661# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 662# endif 663#endif 664 665#ifndef _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 666# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 667#endif 668 669#ifndef _LIBCPP_INLINE_VISIBILITY 670#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 671#define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__visibility__("hidden"), __always_inline__)) 672#else 673#define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__always_inline__)) 674#endif 675#endif 676 677#ifndef _LIBCPP_ALWAYS_INLINE 678#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 679#define _LIBCPP_ALWAYS_INLINE __attribute__ ((__visibility__("hidden"), __always_inline__)) 680#else 681#define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__)) 682#endif 683#endif 684 685#ifndef _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY 686# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 687# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__((__visibility__("default"), __always_inline__)) 688# else 689# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__((__always_inline__)) 690# endif 691#endif 692 693#ifndef _LIBCPP_PREFERRED_OVERLOAD 694# if __has_attribute(__enable_if__) 695# define _LIBCPP_PREFERRED_OVERLOAD __attribute__ ((__enable_if__(true, ""))) 696# endif 697#endif 698 699#ifndef _LIBCPP_HAS_NO_NOEXCEPT 700# define _NOEXCEPT noexcept 701# define _NOEXCEPT_(x) noexcept(x) 702#else 703# define _NOEXCEPT throw() 704# define _NOEXCEPT_(x) 705#endif 706 707#if defined(_LIBCPP_DEBUG_USE_EXCEPTIONS) 708# if !defined(_LIBCPP_DEBUG) 709# error cannot use _LIBCPP_DEBUG_USE_EXCEPTIONS unless _LIBCPP_DEBUG is defined 710# endif 711# define _NOEXCEPT_DEBUG noexcept(false) 712# define _NOEXCEPT_DEBUG_(x) noexcept(false) 713#else 714# define _NOEXCEPT_DEBUG _NOEXCEPT 715# define _NOEXCEPT_DEBUG_(x) _NOEXCEPT_(x) 716#endif 717 718#ifdef _LIBCPP_HAS_NO_UNICODE_CHARS 719typedef unsigned short char16_t; 720typedef unsigned int char32_t; 721#endif // _LIBCPP_HAS_NO_UNICODE_CHARS 722 723#ifndef __SIZEOF_INT128__ 724#define _LIBCPP_HAS_NO_INT128 725#endif 726 727#ifdef _LIBCPP_CXX03_LANG 728# if __has_extension(c_static_assert) 729# define static_assert(__b, __m) _Static_assert(__b, __m) 730# else 731extern "C++" { 732template <bool> struct __static_assert_test; 733template <> struct __static_assert_test<true> {}; 734template <unsigned> struct __static_assert_check {}; 735} 736#define static_assert(__b, __m) \ 737 typedef __static_assert_check<sizeof(__static_assert_test<(__b)>)> \ 738 _LIBCPP_CONCAT(__t, __LINE__) 739# endif // __has_extension(c_static_assert) 740#endif // _LIBCPP_CXX03_LANG 741 742#ifdef _LIBCPP_HAS_NO_DECLTYPE 743// GCC 4.6 provides __decltype in all standard modes. 744#if !__is_identifier(__decltype) || _GNUC_VER >= 406 745# define decltype(__x) __decltype(__x) 746#else 747# define decltype(__x) __typeof__(__x) 748#endif 749#endif 750 751#ifdef _LIBCPP_HAS_NO_CONSTEXPR 752#define _LIBCPP_CONSTEXPR 753#else 754#define _LIBCPP_CONSTEXPR constexpr 755#endif 756 757#ifdef _LIBCPP_CXX03_LANG 758#define _LIBCPP_DEFAULT {} 759#else 760#define _LIBCPP_DEFAULT = default; 761#endif 762 763#ifdef _LIBCPP_CXX03_LANG 764#define _LIBCPP_EQUAL_DELETE 765#else 766#define _LIBCPP_EQUAL_DELETE = delete 767#endif 768 769#ifdef __GNUC__ 770#define _NOALIAS __attribute__((__malloc__)) 771#else 772#define _NOALIAS 773#endif 774 775#if __has_extension(cxx_explicit_conversions) || defined(__IBMCPP__) || \ 776 (!defined(_LIBCPP_CXX03_LANG) && defined(__GNUC__)) // All supported GCC versions 777# define _LIBCPP_EXPLICIT explicit 778#else 779# define _LIBCPP_EXPLICIT 780#endif 781 782#if !__has_builtin(__builtin_operator_new) || !__has_builtin(__builtin_operator_delete) 783# define _LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE 784#endif 785 786#ifdef _LIBCPP_HAS_NO_STRONG_ENUMS 787#define _LIBCPP_DECLARE_STRONG_ENUM(x) struct _LIBCPP_TYPE_VIS x { enum __lx 788#define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) \ 789 __lx __v_; \ 790 _LIBCPP_ALWAYS_INLINE x(__lx __v) : __v_(__v) {} \ 791 _LIBCPP_ALWAYS_INLINE explicit x(int __v) : __v_(static_cast<__lx>(__v)) {} \ 792 _LIBCPP_ALWAYS_INLINE operator int() const {return __v_;} \ 793 }; 794#else // _LIBCPP_HAS_NO_STRONG_ENUMS 795#define _LIBCPP_DECLARE_STRONG_ENUM(x) enum class _LIBCPP_ENUM_VIS x 796#define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) 797#endif // _LIBCPP_HAS_NO_STRONG_ENUMS 798 799#ifdef _LIBCPP_DEBUG 800# if _LIBCPP_DEBUG == 0 801# define _LIBCPP_DEBUG_LEVEL 1 802# elif _LIBCPP_DEBUG == 1 803# define _LIBCPP_DEBUG_LEVEL 2 804# else 805# error Supported values for _LIBCPP_DEBUG are 0 and 1 806# endif 807# define _LIBCPP_EXTERN_TEMPLATE(...) 808#endif 809 810#ifndef _LIBCPP_EXTERN_TEMPLATE 811#define _LIBCPP_EXTERN_TEMPLATE(...) extern template __VA_ARGS__; 812#endif 813 814#ifndef _LIBCPP_EXTERN_TEMPLATE2 815#define _LIBCPP_EXTERN_TEMPLATE2(...) extern template __VA_ARGS__; 816#endif 817 818#if defined(__APPLE__) && defined(__LP64__) && !defined(__x86_64__) 819#define _LIBCPP_NONUNIQUE_RTTI_BIT (1ULL << 63) 820#endif 821 822#if defined(__APPLE__) || defined(__FreeBSD__) || defined(_LIBCPP_MSVCRT) || \ 823 defined(__sun__) || defined(__NetBSD__) || defined(__CloudABI__) 824#define _LIBCPP_LOCALE__L_EXTENSIONS 1 825#endif 826 827#if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__)) 828// Most unix variants have catopen. These are the specific ones that don't. 829#if !defined(__BIONIC__) && !defined(_NEWLIB_VERSION) 830#define _LIBCPP_HAS_CATOPEN 1 831#endif 832#endif 833 834#ifdef __FreeBSD__ 835#define _DECLARE_C99_LDBL_MATH 1 836#endif 837 838#if defined(__APPLE__) || defined(__FreeBSD__) 839#define _LIBCPP_HAS_DEFAULTRUNELOCALE 840#endif 841 842#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__sun__) 843#define _LIBCPP_WCTYPE_IS_MASK 844#endif 845 846#ifndef _LIBCPP_STD_VER 847# if __cplusplus <= 201103L 848# define _LIBCPP_STD_VER 11 849# elif __cplusplus <= 201402L 850# define _LIBCPP_STD_VER 14 851# else 852# define _LIBCPP_STD_VER 16 // current year, or date of c++17 ratification 853# endif 854#endif // _LIBCPP_STD_VER 855 856#if _LIBCPP_STD_VER > 11 857#define _LIBCPP_DEPRECATED [[deprecated]] 858#else 859#define _LIBCPP_DEPRECATED 860#endif 861 862#if _LIBCPP_STD_VER <= 11 863#define _LIBCPP_EXPLICIT_AFTER_CXX11 864#define _LIBCPP_DEPRECATED_AFTER_CXX11 865#else 866#define _LIBCPP_EXPLICIT_AFTER_CXX11 explicit 867#define _LIBCPP_DEPRECATED_AFTER_CXX11 [[deprecated]] 868#endif 869 870#if _LIBCPP_STD_VER > 11 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR) 871#define _LIBCPP_CONSTEXPR_AFTER_CXX11 constexpr 872#else 873#define _LIBCPP_CONSTEXPR_AFTER_CXX11 874#endif 875 876#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR) 877#define _LIBCPP_CONSTEXPR_AFTER_CXX14 constexpr 878#else 879#define _LIBCPP_CONSTEXPR_AFTER_CXX14 880#endif 881 882// FIXME: Remove all usages of this macro once compilers catch up. 883#if !defined(__cpp_inline_variables) || (__cpp_inline_variables < 201606L) 884# define _LIBCPP_HAS_NO_INLINE_VARIABLES 885#endif 886 887#ifdef _LIBCPP_HAS_NO_RVALUE_REFERENCES 888# define _LIBCPP_EXPLICIT_MOVE(x) _VSTD::move(x) 889#else 890# define _LIBCPP_EXPLICIT_MOVE(x) (x) 891#endif 892 893#ifndef _LIBCPP_HAS_NO_ASAN 894_LIBCPP_FUNC_VIS extern "C" void __sanitizer_annotate_contiguous_container( 895 const void *, const void *, const void *, const void *); 896#endif 897 898// Try to find out if RTTI is disabled. 899// g++ and cl.exe have RTTI on by default and define a macro when it is. 900// g++ only defines the macro in 4.3.2 and onwards. 901#if !defined(_LIBCPP_NO_RTTI) 902# if defined(__GNUC__) && ((__GNUC__ >= 5) || (__GNUC__ == 4 && \ 903 (__GNUC_MINOR__ >= 3 || __GNUC_PATCHLEVEL__ >= 2))) && !defined(__GXX_RTTI) 904# define _LIBCPP_NO_RTTI 905# elif (defined(_MSC_VER) && !defined(__clang__)) && !defined(_CPPRTTI) 906# define _LIBCPP_NO_RTTI 907# endif 908#endif 909 910#ifndef _LIBCPP_WEAK 911# define _LIBCPP_WEAK __attribute__((__weak__)) 912#endif 913 914// Thread API 915#if !defined(_LIBCPP_HAS_NO_THREADS) && \ 916 !defined(_LIBCPP_HAS_THREAD_API_PTHREAD) 917# if defined(__FreeBSD__) || \ 918 defined(__Fuchsia__) || \ 919 defined(__NetBSD__) || \ 920 defined(__linux__) || \ 921 defined(__APPLE__) || \ 922 defined(__CloudABI__) || \ 923 defined(__sun__) 924# define _LIBCPP_HAS_THREAD_API_PTHREAD 925# elif defined(_LIBCPP_WIN32API) 926# define _LIBCPP_HAS_THREAD_API_WIN32 927# else 928# error "No thread API" 929# endif // _LIBCPP_HAS_THREAD_API 930#endif // _LIBCPP_HAS_NO_THREADS 931 932#if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_PTHREAD) 933# error _LIBCPP_HAS_THREAD_API_PTHREAD may only be defined when \ 934 _LIBCPP_HAS_NO_THREADS is not defined. 935#endif 936 937#if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_EXTERNAL) 938# error _LIBCPP_HAS_EXTERNAL_THREAD_API may not be defined when \ 939 _LIBCPP_HAS_NO_THREADS is defined. 940#endif 941 942#if defined(_LIBCPP_HAS_NO_MONOTONIC_CLOCK) && !defined(_LIBCPP_HAS_NO_THREADS) 943# error _LIBCPP_HAS_NO_MONOTONIC_CLOCK may only be defined when \ 944 _LIBCPP_HAS_NO_THREADS is defined. 945#endif 946 947// Systems that use capability-based security (FreeBSD with Capsicum, 948// Nuxi CloudABI) may only provide local filesystem access (using *at()). 949// Functions like open(), rename(), unlink() and stat() should not be 950// used, as they attempt to access the global filesystem namespace. 951#ifdef __CloudABI__ 952#define _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE 953#endif 954 955// CloudABI is intended for running networked services. Processes do not 956// have standard input and output channels. 957#ifdef __CloudABI__ 958#define _LIBCPP_HAS_NO_STDIN 959#define _LIBCPP_HAS_NO_STDOUT 960#endif 961 962#if defined(__BIONIC__) || defined(__CloudABI__) || \ 963 defined(_LIBCPP_HAS_MUSL_LIBC) 964#define _LIBCPP_PROVIDES_DEFAULT_RUNE_TABLE 965#endif 966 967// Thread-unsafe functions such as strtok() and localtime() 968// are not available. 969#ifdef __CloudABI__ 970#define _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS 971#endif 972 973#if __has_feature(cxx_atomic) || __has_extension(c_atomic) 974#define _LIBCPP_HAS_C_ATOMIC_IMP 975#elif _GNUC_VER > 407 976#define _LIBCPP_HAS_GCC_ATOMIC_IMP 977#endif 978 979#if (!defined(_LIBCPP_HAS_C_ATOMIC_IMP) && !defined(_LIBCPP_HAS_GCC_ATOMIC_IMP)) \ 980 || defined(_LIBCPP_HAS_NO_THREADS) 981#define _LIBCPP_HAS_NO_ATOMIC_HEADER 982#endif 983 984#ifndef _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK 985#define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK 986#endif 987 988#if (defined(_LIBCPP_ENABLE_THREAD_SAFETY_ANNOTATIONS) && defined(__clang__) \ 989 && __has_attribute(acquire_capability)) 990#define _LIBCPP_HAS_THREAD_SAFETY_ANNOTATIONS 991#endif 992 993#if __has_attribute(require_constant_initialization) 994#define _LIBCPP_SAFE_STATIC __attribute__((__require_constant_initialization__)) 995#else 996#define _LIBCPP_SAFE_STATIC 997#endif 998 999#if !__has_builtin(__builtin_addressof) && _GNUC_VER < 700 1000#define _LIBCPP_HAS_NO_BUILTIN_ADDRESSOF 1001#endif 1002 1003#if !defined(_LIBCPP_HAS_NO_OFF_T_FUNCTIONS) 1004#if defined(_LIBCPP_MSVCRT) || defined(_NEWLIB_VERSION) 1005#define _LIBCPP_HAS_NO_OFF_T_FUNCTIONS 1006#endif 1007#endif 1008 1009#endif // __cplusplus 1010 1011#endif // _LIBCPP_CONFIG 1012