1 // -*- C++ -*- 2 //===--------------------------- __config ---------------------------------===// 3 // 4 // The LLVM Compiler Infrastructure 5 // 6 // This file is dual licensed under the MIT and the University of Illinois Open 7 // Source Licenses. See LICENSE.TXT for details. 8 // 9 //===----------------------------------------------------------------------===// 10 11 #ifndef _LIBCPP_CONFIG 12 #define _LIBCPP_CONFIG 13 14 #if defined(_MSC_VER) && !defined(__clang__) 15 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 16 #define _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER 17 #endif 18 #endif 19 20 #ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER 21 #pragma GCC system_header 22 #endif 23 24 #ifdef __cplusplus 25 26 #ifdef __GNUC__ 27 #define _GNUC_VER (__GNUC__ * 100 + __GNUC_MINOR__) 28 // The _GNUC_VER_NEW macro better represents the new GCC versioning scheme 29 // introduced in GCC 5.0. 30 #define _GNUC_VER_NEW (_GNUC_VER * 10 + __GNUC_PATCHLEVEL__) 31 #else 32 #define _GNUC_VER 0 33 #define _GNUC_VER_NEW 0 34 #endif 35 36 #define _LIBCPP_VERSION 7000 37 38 #ifndef _LIBCPP_ABI_VERSION 39 #define _LIBCPP_ABI_VERSION 1 40 #endif 41 42 #if defined(__ELF__) 43 #define _LIBCPP_OBJECT_FORMAT_ELF 1 44 #elif defined(__MACH__) 45 #define _LIBCPP_OBJECT_FORMAT_MACHO 1 46 #elif defined(_WIN32) 47 #define _LIBCPP_OBJECT_FORMAT_COFF 1 48 #elif defined(__wasm__) 49 #define _LIBCPP_OBJECT_FORMAT_WASM 1 50 #else 51 #error Unknown object file format 52 #endif 53 54 #if defined(_LIBCPP_ABI_UNSTABLE) || _LIBCPP_ABI_VERSION >= 2 55 // Change short string representation so that string data starts at offset 0, 56 // improving its alignment in some cases. 57 #define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT 58 // Fix deque iterator type in order to support incomplete types. 59 #define _LIBCPP_ABI_INCOMPLETE_TYPES_IN_DEQUE 60 // Fix undefined behavior in how std::list stores its linked nodes. 61 #define _LIBCPP_ABI_LIST_REMOVE_NODE_POINTER_UB 62 // Fix undefined behavior in how __tree stores its end and parent nodes. 63 #define _LIBCPP_ABI_TREE_REMOVE_NODE_POINTER_UB 64 // Fix undefined behavior in how __hash_table stores its pointer types. 65 #define _LIBCPP_ABI_FIX_UNORDERED_NODE_POINTER_UB 66 #define _LIBCPP_ABI_FORWARD_LIST_REMOVE_NODE_POINTER_UB 67 #define _LIBCPP_ABI_FIX_UNORDERED_CONTAINER_SIZE_TYPE 68 // Don't use a nullptr_t simulation type in C++03 instead using C++11 nullptr 69 // provided under the alternate keyword __nullptr, which changes the mangling 70 // of nullptr_t. This option is ABI incompatible with GCC in C++03 mode. 71 #define _LIBCPP_ABI_ALWAYS_USE_CXX11_NULLPTR 72 // Define the `pointer_safety` enum as a C++11 strongly typed enumeration 73 // instead of as a class simulating an enum. If this option is enabled 74 // `pointer_safety` and `get_pointer_safety()` will no longer be available 75 // in C++03. 76 #define _LIBCPP_ABI_POINTER_SAFETY_ENUM_TYPE 77 // Define a key function for `bad_function_call` in the library, to centralize 78 // its vtable and typeinfo to libc++ rather than having all other libraries 79 // using that class define their own copies. 80 #define _LIBCPP_ABI_BAD_FUNCTION_CALL_KEY_FUNCTION 81 // Enable optimized version of __do_get_(un)signed which avoids redundant copies. 82 #define _LIBCPP_ABI_OPTIMIZED_LOCALE_NUM_GET 83 // Use the smallest possible integer type to represent the index of the variant. 84 // Previously libc++ used "unsigned int" exclusivly. 85 #define _LIBCPP_ABI_VARIANT_INDEX_TYPE_OPTIMIZATION 86 #elif _LIBCPP_ABI_VERSION == 1 87 #if !defined(_LIBCPP_OBJECT_FORMAT_COFF) 88 // Enable compiling copies of now inline methods into the dylib to support 89 // applications compiled against older libraries. This is unnecessary with 90 // COFF dllexport semantics, since dllexport forces a non-inline definition 91 // of inline functions to be emitted anyway. Our own non-inline copy would 92 // conflict with the dllexport-emitted copy, so we disable it. 93 #define _LIBCPP_DEPRECATED_ABI_LEGACY_LIBRARY_DEFINITIONS_FOR_INLINE_FUNCTIONS 94 #endif 95 // Feature macros for disabling pre ABI v1 features. All of these options 96 // are deprecated. 97 #if defined(__FreeBSD__) 98 #define _LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR 99 #endif 100 #endif 101 102 #ifdef _LIBCPP_TRIVIAL_PAIR_COPY_CTOR 103 #error "_LIBCPP_TRIVIAL_PAIR_COPY_CTOR" is no longer supported. \ 104 use _LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR instead 105 #endif 106 107 #define _LIBCPP_CONCAT1(_LIBCPP_X,_LIBCPP_Y) _LIBCPP_X##_LIBCPP_Y 108 #define _LIBCPP_CONCAT(_LIBCPP_X,_LIBCPP_Y) _LIBCPP_CONCAT1(_LIBCPP_X,_LIBCPP_Y) 109 110 #define _LIBCPP_NAMESPACE _LIBCPP_CONCAT(__,_LIBCPP_ABI_VERSION) 111 112 #if __cplusplus < 201103L 113 #define _LIBCPP_CXX03_LANG 114 #endif 115 116 #ifndef __has_attribute 117 #define __has_attribute(__x) 0 118 #endif 119 #ifndef __has_builtin 120 #define __has_builtin(__x) 0 121 #endif 122 #ifndef __has_extension 123 #define __has_extension(__x) 0 124 #endif 125 #ifndef __has_feature 126 #define __has_feature(__x) 0 127 #endif 128 #ifndef __has_cpp_attribute 129 #define __has_cpp_attribute(__x) 0 130 #endif 131 // '__is_identifier' returns '0' if '__x' is a reserved identifier provided by 132 // the compiler and '1' otherwise. 133 #ifndef __is_identifier 134 #define __is_identifier(__x) 1 135 #endif 136 #ifndef __has_declspec_attribute 137 #define __has_declspec_attribute(__x) 0 138 #endif 139 140 #define __has_keyword(__x) !(__is_identifier(__x)) 141 142 #ifdef __has_include 143 #define __libcpp_has_include(__x) __has_include(__x) 144 #else 145 #define __libcpp_has_include(__x) 0 146 #endif 147 148 #if defined(__clang__) 149 #define _LIBCPP_COMPILER_CLANG 150 # ifndef __apple_build_version__ 151 # define _LIBCPP_CLANG_VER (__clang_major__ * 100 + __clang_minor__) 152 # endif 153 #elif defined(__GNUC__) 154 #define _LIBCPP_COMPILER_GCC 155 #elif defined(_MSC_VER) 156 #define _LIBCPP_COMPILER_MSVC 157 #elif defined(__IBMCPP__) 158 #define _LIBCPP_COMPILER_IBM 159 #endif 160 161 #ifndef _LIBCPP_CLANG_VER 162 #define _LIBCPP_CLANG_VER 0 163 #endif 164 165 // FIXME: ABI detection should be done via compiler builtin macros. This 166 // is just a placeholder until Clang implements such macros. For now assume 167 // that Windows compilers pretending to be MSVC++ target the Microsoft ABI, 168 // and allow the user to explicitly specify the ABI to handle cases where this 169 // heuristic falls short. 170 #if defined(_LIBCPP_ABI_FORCE_ITANIUM) && defined(_LIBCPP_ABI_FORCE_MICROSOFT) 171 # error "Only one of _LIBCPP_ABI_FORCE_ITANIUM and _LIBCPP_ABI_FORCE_MICROSOFT can be defined" 172 #elif defined(_LIBCPP_ABI_FORCE_ITANIUM) 173 # define _LIBCPP_ABI_ITANIUM 174 #elif defined(_LIBCPP_ABI_FORCE_MICROSOFT) 175 # define _LIBCPP_ABI_MICROSOFT 176 #else 177 # if defined(_WIN32) && defined(_MSC_VER) 178 # define _LIBCPP_ABI_MICROSOFT 179 # else 180 # define _LIBCPP_ABI_ITANIUM 181 # endif 182 #endif 183 184 // Need to detect which libc we're using if we're on Linux. 185 #if defined(__linux__) 186 #include <features.h> 187 #if defined(__GLIBC_PREREQ) 188 #define _LIBCPP_GLIBC_PREREQ(a, b) __GLIBC_PREREQ(a, b) 189 #else 190 #define _LIBCPP_GLIBC_PREREQ(a, b) 0 191 #endif // defined(__GLIBC_PREREQ) 192 #endif // defined(__linux__) 193 194 #ifdef __LITTLE_ENDIAN__ 195 #if __LITTLE_ENDIAN__ 196 #define _LIBCPP_LITTLE_ENDIAN 197 #endif // __LITTLE_ENDIAN__ 198 #endif // __LITTLE_ENDIAN__ 199 200 #ifdef __BIG_ENDIAN__ 201 #if __BIG_ENDIAN__ 202 #define _LIBCPP_BIG_ENDIAN 203 #endif // __BIG_ENDIAN__ 204 #endif // __BIG_ENDIAN__ 205 206 #ifdef __BYTE_ORDER__ 207 #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 208 #define _LIBCPP_LITTLE_ENDIAN 209 #elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 210 #define _LIBCPP_BIG_ENDIAN 211 #endif // __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 212 #endif // __BYTE_ORDER__ 213 214 #ifdef __FreeBSD__ 215 # include <sys/endian.h> 216 # if _BYTE_ORDER == _LITTLE_ENDIAN 217 # define _LIBCPP_LITTLE_ENDIAN 218 # else // _BYTE_ORDER == _LITTLE_ENDIAN 219 # define _LIBCPP_BIG_ENDIAN 220 # endif // _BYTE_ORDER == _LITTLE_ENDIAN 221 # ifndef __LONG_LONG_SUPPORTED 222 # define _LIBCPP_HAS_NO_LONG_LONG 223 # endif // __LONG_LONG_SUPPORTED 224 #endif // __FreeBSD__ 225 226 #ifdef __NetBSD__ 227 # include <sys/endian.h> 228 # if _BYTE_ORDER == _LITTLE_ENDIAN 229 # define _LIBCPP_LITTLE_ENDIAN 230 # else // _BYTE_ORDER == _LITTLE_ENDIAN 231 # define _LIBCPP_BIG_ENDIAN 232 # endif // _BYTE_ORDER == _LITTLE_ENDIAN 233 # define _LIBCPP_HAS_QUICK_EXIT 234 #endif // __NetBSD__ 235 236 #if defined(_WIN32) 237 # define _LIBCPP_WIN32API 238 # define _LIBCPP_LITTLE_ENDIAN 239 # define _LIBCPP_SHORT_WCHAR 1 240 // Both MinGW and native MSVC provide a "MSVC"-like enviroment 241 # define _LIBCPP_MSVCRT_LIKE 242 // If mingw not explicitly detected, assume using MS C runtime only if 243 // a MS compatibility version is specified. 244 # if defined(_MSC_VER) && !defined(__MINGW32__) 245 # define _LIBCPP_MSVCRT // Using Microsoft's C Runtime library 246 # endif 247 # if (defined(_M_AMD64) || defined(__x86_64__)) || (defined(_M_ARM) || defined(__arm__)) 248 # define _LIBCPP_HAS_BITSCAN64 249 # endif 250 # define _LIBCPP_HAS_OPEN_WITH_WCHAR 251 # if defined(_LIBCPP_MSVCRT) 252 # define _LIBCPP_HAS_QUICK_EXIT 253 # endif 254 255 // Some CRT APIs are unavailable to store apps 256 #if defined(WINAPI_FAMILY) 257 #include <winapifamily.h> 258 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) && \ 259 (!defined(WINAPI_PARTITION_SYSTEM) || \ 260 !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_SYSTEM)) 261 #define _LIBCPP_WINDOWS_STORE_APP 262 #endif 263 #endif 264 #endif // defined(_WIN32) 265 266 #ifdef __sun__ 267 # include <sys/isa_defs.h> 268 # ifdef _LITTLE_ENDIAN 269 # define _LIBCPP_LITTLE_ENDIAN 270 # else 271 # define _LIBCPP_BIG_ENDIAN 272 # endif 273 #endif // __sun__ 274 275 #if defined(__CloudABI__) 276 // Certain architectures provide arc4random(). Prefer using 277 // arc4random() over /dev/{u,}random to make it possible to obtain 278 // random data even when using sandboxing mechanisms such as chroots, 279 // Capsicum, etc. 280 # define _LIBCPP_USING_ARC4_RANDOM 281 #elif defined(__Fuchsia__) 282 # define _LIBCPP_USING_GETENTROPY 283 #elif defined(__native_client__) 284 // NaCl's sandbox (which PNaCl also runs in) doesn't allow filesystem access, 285 // including accesses to the special files under /dev. C++11's 286 // std::random_device is instead exposed through a NaCl syscall. 287 # define _LIBCPP_USING_NACL_RANDOM 288 #elif defined(_LIBCPP_WIN32API) 289 # define _LIBCPP_USING_WIN32_RANDOM 290 #else 291 # define _LIBCPP_USING_DEV_RANDOM 292 #endif 293 294 #if !defined(_LIBCPP_LITTLE_ENDIAN) && !defined(_LIBCPP_BIG_ENDIAN) 295 # include <endian.h> 296 # if __BYTE_ORDER == __LITTLE_ENDIAN 297 # define _LIBCPP_LITTLE_ENDIAN 298 # elif __BYTE_ORDER == __BIG_ENDIAN 299 # define _LIBCPP_BIG_ENDIAN 300 # else // __BYTE_ORDER == __BIG_ENDIAN 301 # error unable to determine endian 302 # endif 303 #endif // !defined(_LIBCPP_LITTLE_ENDIAN) && !defined(_LIBCPP_BIG_ENDIAN) 304 305 #if __has_attribute(__no_sanitize__) && !defined(_LIBCPP_COMPILER_GCC) 306 #define _LIBCPP_NO_CFI __attribute__((__no_sanitize__("cfi"))) 307 #else 308 #define _LIBCPP_NO_CFI 309 #endif 310 311 #if defined(_LIBCPP_COMPILER_CLANG) 312 313 // _LIBCPP_ALTERNATE_STRING_LAYOUT is an old name for 314 // _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT left here for backward compatibility. 315 #if (defined(__APPLE__) && !defined(__i386__) && !defined(__x86_64__) && \ 316 (!defined(__arm__) || __ARM_ARCH_7K__ >= 2)) || \ 317 defined(_LIBCPP_ALTERNATE_STRING_LAYOUT) 318 #define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT 319 #endif 320 321 #if __has_feature(cxx_alignas) 322 # define _ALIGNAS_TYPE(x) alignas(x) 323 # define _ALIGNAS(x) alignas(x) 324 #else 325 # define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x)))) 326 # define _ALIGNAS(x) __attribute__((__aligned__(x))) 327 #endif 328 329 #if __cplusplus < 201103L 330 typedef __char16_t char16_t; 331 typedef __char32_t char32_t; 332 #endif 333 334 #if !(__has_feature(cxx_exceptions)) && !defined(_LIBCPP_NO_EXCEPTIONS) 335 #define _LIBCPP_NO_EXCEPTIONS 336 #endif 337 338 #if !(__has_feature(cxx_rtti)) && !defined(_LIBCPP_NO_RTTI) 339 #define _LIBCPP_NO_RTTI 340 #endif 341 342 #if !(__has_feature(cxx_strong_enums)) 343 #define _LIBCPP_HAS_NO_STRONG_ENUMS 344 #endif 345 346 #if !(__has_feature(cxx_decltype)) 347 #define _LIBCPP_HAS_NO_DECLTYPE 348 #endif 349 350 #if __has_feature(cxx_attributes) 351 # define _LIBCPP_NORETURN [[noreturn]] 352 #else 353 # define _LIBCPP_NORETURN __attribute__ ((noreturn)) 354 #endif 355 356 #if !(__has_feature(cxx_lambdas)) 357 #define _LIBCPP_HAS_NO_LAMBDAS 358 #endif 359 360 #if !(__has_feature(cxx_nullptr)) 361 # if (__has_extension(cxx_nullptr) || __has_keyword(__nullptr)) && defined(_LIBCPP_ABI_ALWAYS_USE_CXX11_NULLPTR) 362 # define nullptr __nullptr 363 # else 364 # define _LIBCPP_HAS_NO_NULLPTR 365 # endif 366 #endif 367 368 #if !(__has_feature(cxx_rvalue_references)) 369 #define _LIBCPP_HAS_NO_RVALUE_REFERENCES 370 #endif 371 372 #if !(__has_feature(cxx_auto_type)) 373 #define _LIBCPP_HAS_NO_AUTO_TYPE 374 #endif 375 376 #if !(__has_feature(cxx_variadic_templates)) 377 #define _LIBCPP_HAS_NO_VARIADICS 378 #endif 379 380 #if !(__has_feature(cxx_generalized_initializers)) 381 #define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 382 #endif 383 384 #if __has_feature(is_base_of) 385 # define _LIBCPP_HAS_IS_BASE_OF 386 #endif 387 388 #if __has_feature(is_final) 389 # define _LIBCPP_HAS_IS_FINAL 390 #endif 391 392 // Objective-C++ features (opt-in) 393 #if __has_feature(objc_arc) 394 #define _LIBCPP_HAS_OBJC_ARC 395 #endif 396 397 #if __has_feature(objc_arc_weak) 398 #define _LIBCPP_HAS_OBJC_ARC_WEAK 399 #endif 400 401 #if !(__has_feature(cxx_constexpr)) 402 #define _LIBCPP_HAS_NO_CONSTEXPR 403 #endif 404 405 #if !(__has_feature(cxx_relaxed_constexpr)) 406 #define _LIBCPP_HAS_NO_CXX14_CONSTEXPR 407 #endif 408 409 #if !(__has_feature(cxx_variable_templates)) 410 #define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 411 #endif 412 413 #if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L 414 #if defined(__FreeBSD__) 415 #define _LIBCPP_HAS_QUICK_EXIT 416 #define _LIBCPP_HAS_C11_FEATURES 417 #elif defined(__Fuchsia__) 418 #define _LIBCPP_HAS_QUICK_EXIT 419 #define _LIBCPP_HAS_C11_FEATURES 420 #elif defined(__linux__) 421 #if !defined(_LIBCPP_HAS_MUSL_LIBC) 422 #if _LIBCPP_GLIBC_PREREQ(2, 15) || defined(__BIONIC__) 423 #define _LIBCPP_HAS_QUICK_EXIT 424 #endif 425 #if _LIBCPP_GLIBC_PREREQ(2, 17) 426 #define _LIBCPP_HAS_C11_FEATURES 427 #endif 428 #else // defined(_LIBCPP_HAS_MUSL_LIBC) 429 #define _LIBCPP_HAS_QUICK_EXIT 430 #define _LIBCPP_HAS_C11_FEATURES 431 #endif 432 #endif // __linux__ 433 #endif 434 435 #if !(__has_feature(cxx_noexcept)) 436 #define _LIBCPP_HAS_NO_NOEXCEPT 437 #endif 438 439 #if __has_feature(underlying_type) 440 # define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T) 441 #endif 442 443 #if __has_feature(is_literal) 444 # define _LIBCPP_IS_LITERAL(T) __is_literal(T) 445 #endif 446 447 // Inline namespaces are available in Clang regardless of C++ dialect. 448 #define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE { 449 #define _LIBCPP_END_NAMESPACE_STD } } 450 #define _VSTD std::_LIBCPP_NAMESPACE 451 452 namespace std { 453 inline namespace _LIBCPP_NAMESPACE { 454 } 455 } 456 457 #if !defined(_LIBCPP_HAS_NO_ASAN) && !__has_feature(address_sanitizer) 458 #define _LIBCPP_HAS_NO_ASAN 459 #endif 460 461 // Allow for build-time disabling of unsigned integer sanitization 462 #if !defined(_LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK) && __has_attribute(no_sanitize) 463 #define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK __attribute__((__no_sanitize__("unsigned-integer-overflow"))) 464 #endif 465 466 #if __has_builtin(__builtin_launder) 467 #define _LIBCPP_COMPILER_HAS_BUILTIN_LAUNDER 468 #endif 469 470 #if !__is_identifier(__has_unique_object_representations) 471 #define _LIBCPP_HAS_UNIQUE_OBJECT_REPRESENTATIONS 472 #endif 473 474 #elif defined(_LIBCPP_COMPILER_GCC) 475 476 #define _ALIGNAS(x) __attribute__((__aligned__(x))) 477 #define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x)))) 478 479 #define _LIBCPP_NORETURN __attribute__((noreturn)) 480 481 #if _GNUC_VER >= 407 482 #define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T) 483 #define _LIBCPP_IS_LITERAL(T) __is_literal_type(T) 484 #define _LIBCPP_HAS_IS_FINAL 485 #endif 486 487 #if defined(__GNUC__) && _GNUC_VER >= 403 488 # define _LIBCPP_HAS_IS_BASE_OF 489 #endif 490 491 #if !__EXCEPTIONS 492 #define _LIBCPP_NO_EXCEPTIONS 493 #endif 494 495 // constexpr was added to GCC in 4.6. 496 #if _GNUC_VER < 406 497 #define _LIBCPP_HAS_NO_CONSTEXPR 498 // Can only use constexpr in c++11 mode. 499 #elif !defined(__GXX_EXPERIMENTAL_CXX0X__) && __cplusplus < 201103L 500 #define _LIBCPP_HAS_NO_CONSTEXPR 501 #endif 502 503 // Determine if GCC supports relaxed constexpr 504 #if !defined(__cpp_constexpr) || __cpp_constexpr < 201304L 505 #define _LIBCPP_HAS_NO_CXX14_CONSTEXPR 506 #endif 507 508 // GCC 5 will support variable templates 509 #if !defined(__cpp_variable_templates) || __cpp_variable_templates < 201304L 510 #define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 511 #endif 512 513 #ifndef __GXX_EXPERIMENTAL_CXX0X__ 514 #define _LIBCPP_HAS_NO_DECLTYPE 515 #define _LIBCPP_HAS_NO_NULLPTR 516 #define _LIBCPP_HAS_NO_UNICODE_CHARS 517 #define _LIBCPP_HAS_NO_VARIADICS 518 #define _LIBCPP_HAS_NO_RVALUE_REFERENCES 519 #define _LIBCPP_HAS_NO_STRONG_ENUMS 520 #define _LIBCPP_HAS_NO_NOEXCEPT 521 522 #else // __GXX_EXPERIMENTAL_CXX0X__ 523 524 #if _GNUC_VER < 403 525 #define _LIBCPP_HAS_NO_RVALUE_REFERENCES 526 #endif 527 528 529 #if _GNUC_VER < 404 530 #define _LIBCPP_HAS_NO_DECLTYPE 531 #define _LIBCPP_HAS_NO_UNICODE_CHARS 532 #define _LIBCPP_HAS_NO_VARIADICS 533 #define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 534 #endif // _GNUC_VER < 404 535 536 #if _GNUC_VER < 406 537 #define _LIBCPP_HAS_NO_NOEXCEPT 538 #define _LIBCPP_HAS_NO_NULLPTR 539 #endif 540 541 #endif // __GXX_EXPERIMENTAL_CXX0X__ 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 546 547 namespace std { 548 inline namespace _LIBCPP_NAMESPACE { 549 } 550 } 551 552 #if !defined(_LIBCPP_HAS_NO_ASAN) && !defined(__SANITIZE_ADDRESS__) 553 #define _LIBCPP_HAS_NO_ASAN 554 #endif 555 556 #if _GNUC_VER >= 700 557 #define _LIBCPP_COMPILER_HAS_BUILTIN_LAUNDER 558 #endif 559 560 #if _GNUC_VER >= 700 561 #define _LIBCPP_HAS_UNIQUE_OBJECT_REPRESENTATIONS 562 #endif 563 564 #elif defined(_LIBCPP_COMPILER_MSVC) 565 566 #define _LIBCPP_TOSTRING2(x) #x 567 #define _LIBCPP_TOSTRING(x) _LIBCPP_TOSTRING2(x) 568 #define _LIBCPP_WARNING(x) __pragma(message(__FILE__ "(" _LIBCPP_TOSTRING(__LINE__) ") : warning note: " x)) 569 570 #if _MSC_VER < 1900 571 #error "MSVC versions prior to Visual Studio 2015 are not supported" 572 #endif 573 574 #define _LIBCPP_HAS_IS_BASE_OF 575 #define _LIBCPP_HAS_NO_CONSTEXPR 576 #define _LIBCPP_HAS_NO_CXX14_CONSTEXPR 577 #define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 578 #if _MSC_VER <= 1800 579 #define _LIBCPP_HAS_NO_UNICODE_CHARS 580 #endif 581 #define _LIBCPP_HAS_NO_NOEXCEPT 582 #define __alignof__ __alignof 583 #define _LIBCPP_NORETURN __declspec(noreturn) 584 #define _ALIGNAS(x) __declspec(align(x)) 585 #define _LIBCPP_HAS_NO_VARIADICS 586 587 #define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { 588 #define _LIBCPP_END_NAMESPACE_STD } 589 #define _VSTD std 590 591 # define _LIBCPP_WEAK 592 namespace std { 593 } 594 595 #define _LIBCPP_HAS_NO_ASAN 596 597 #elif defined(_LIBCPP_COMPILER_IBM) 598 599 #define _ALIGNAS(x) __attribute__((__aligned__(x))) 600 #define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x)))) 601 #define _ATTRIBUTE(x) __attribute__((x)) 602 #define _LIBCPP_NORETURN __attribute__((noreturn)) 603 604 #define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 605 #define _LIBCPP_HAS_NO_NOEXCEPT 606 #define _LIBCPP_HAS_NO_NULLPTR 607 #define _LIBCPP_HAS_NO_UNICODE_CHARS 608 #define _LIBCPP_HAS_IS_BASE_OF 609 #define _LIBCPP_HAS_IS_FINAL 610 #define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 611 612 #if defined(_AIX) 613 #define __MULTILOCALE_API 614 #endif 615 616 #define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE { 617 #define _LIBCPP_END_NAMESPACE_STD } } 618 #define _VSTD std::_LIBCPP_NAMESPACE 619 620 namespace std { 621 inline namespace _LIBCPP_NAMESPACE { 622 } 623 } 624 625 #define _LIBCPP_HAS_NO_ASAN 626 627 #endif // _LIBCPP_COMPILER_[CLANG|GCC|MSVC|IBM] 628 629 #if defined(_LIBCPP_OBJECT_FORMAT_COFF) 630 #ifdef _DLL 631 # define _LIBCPP_CRT_FUNC __declspec(dllimport) 632 #else 633 # define _LIBCPP_CRT_FUNC 634 #endif 635 636 #if defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 637 # define _LIBCPP_DLL_VIS 638 # define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 639 # define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 640 # define _LIBCPP_OVERRIDABLE_FUNC_VIS 641 #elif defined(_LIBCPP_BUILDING_LIBRARY) 642 # define _LIBCPP_DLL_VIS __declspec(dllexport) 643 # define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 644 # define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS _LIBCPP_DLL_VIS 645 # define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_DLL_VIS 646 #else 647 # define _LIBCPP_DLL_VIS __declspec(dllimport) 648 # define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS _LIBCPP_DLL_VIS 649 # define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 650 # define _LIBCPP_OVERRIDABLE_FUNC_VIS 651 #endif 652 653 #define _LIBCPP_TYPE_VIS _LIBCPP_DLL_VIS 654 #define _LIBCPP_FUNC_VIS _LIBCPP_DLL_VIS 655 #define _LIBCPP_EXTERN_VIS _LIBCPP_DLL_VIS 656 #define _LIBCPP_EXCEPTION_ABI _LIBCPP_DLL_VIS 657 #define _LIBCPP_HIDDEN 658 #define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 659 #define _LIBCPP_TEMPLATE_VIS 660 #define _LIBCPP_ENUM_VIS 661 662 #if defined(_LIBCPP_COMPILER_MSVC) 663 # define _LIBCPP_INLINE_VISIBILITY __forceinline 664 # define _LIBCPP_ALWAYS_INLINE __forceinline 665 # define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __forceinline 666 #else 667 # define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__always_inline__)) 668 # define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__)) 669 # define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__ ((__always_inline__)) 670 #endif 671 #endif // defined(_LIBCPP_OBJECT_FORMAT_COFF) 672 673 #ifndef _LIBCPP_HIDDEN 674 #if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 675 #define _LIBCPP_HIDDEN __attribute__ ((__visibility__("hidden"))) 676 #else 677 #define _LIBCPP_HIDDEN 678 #endif 679 #endif 680 681 #ifndef _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 682 #if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 683 // The inline should be removed once PR32114 is resolved 684 #define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS inline _LIBCPP_HIDDEN 685 #else 686 #define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 687 #endif 688 #endif 689 690 #ifndef _LIBCPP_FUNC_VIS 691 #if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 692 #define _LIBCPP_FUNC_VIS __attribute__ ((__visibility__("default"))) 693 #else 694 #define _LIBCPP_FUNC_VIS 695 #endif 696 #endif 697 698 #ifndef _LIBCPP_TYPE_VIS 699 # if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 700 # define _LIBCPP_TYPE_VIS __attribute__ ((__visibility__("default"))) 701 # else 702 # define _LIBCPP_TYPE_VIS 703 # endif 704 #endif 705 706 #ifndef _LIBCPP_TEMPLATE_VIS 707 # if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 708 # if __has_attribute(__type_visibility__) 709 # define _LIBCPP_TEMPLATE_VIS __attribute__ ((__type_visibility__("default"))) 710 # else 711 # define _LIBCPP_TEMPLATE_VIS __attribute__ ((__visibility__("default"))) 712 # endif 713 # else 714 # define _LIBCPP_TEMPLATE_VIS 715 # endif 716 #endif 717 718 #ifndef _LIBCPP_EXTERN_VIS 719 # define _LIBCPP_EXTERN_VIS 720 #endif 721 722 #ifndef _LIBCPP_OVERRIDABLE_FUNC_VIS 723 # define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_FUNC_VIS 724 #endif 725 726 #ifndef _LIBCPP_EXCEPTION_ABI 727 #if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 728 #define _LIBCPP_EXCEPTION_ABI __attribute__ ((__visibility__("default"))) 729 #else 730 #define _LIBCPP_EXCEPTION_ABI 731 #endif 732 #endif 733 734 #ifndef _LIBCPP_ENUM_VIS 735 # if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__) 736 # define _LIBCPP_ENUM_VIS __attribute__ ((__type_visibility__("default"))) 737 # else 738 # define _LIBCPP_ENUM_VIS 739 # endif 740 #endif 741 742 #ifndef _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 743 # if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__) 744 # define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS __attribute__ ((__visibility__("default"))) 745 # else 746 # define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 747 # endif 748 #endif 749 750 #ifndef _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 751 # define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 752 #endif 753 754 #ifndef _LIBCPP_INLINE_VISIBILITY 755 #if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 756 #define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__visibility__("hidden"), __always_inline__)) 757 #else 758 #define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__always_inline__)) 759 #endif 760 #endif 761 762 #ifndef _LIBCPP_ALWAYS_INLINE 763 #if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 764 #define _LIBCPP_ALWAYS_INLINE __attribute__ ((__visibility__("hidden"), __always_inline__)) 765 #else 766 #define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__)) 767 #endif 768 #endif 769 770 #ifndef _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY 771 # if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 772 # define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__((__visibility__("default"), __always_inline__)) 773 # else 774 # define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__((__always_inline__)) 775 # endif 776 #endif 777 778 #ifndef _LIBCPP_PREFERRED_OVERLOAD 779 # if __has_attribute(__enable_if__) 780 # define _LIBCPP_PREFERRED_OVERLOAD __attribute__ ((__enable_if__(true, ""))) 781 # endif 782 #endif 783 784 #ifndef _LIBCPP_HAS_NO_NOEXCEPT 785 # define _NOEXCEPT noexcept 786 # define _NOEXCEPT_(x) noexcept(x) 787 #else 788 # define _NOEXCEPT throw() 789 # define _NOEXCEPT_(x) 790 #endif 791 792 #if defined(_LIBCPP_DEBUG_USE_EXCEPTIONS) 793 # if !defined(_LIBCPP_DEBUG) 794 # error cannot use _LIBCPP_DEBUG_USE_EXCEPTIONS unless _LIBCPP_DEBUG is defined 795 # endif 796 # ifdef _LIBCPP_HAS_NO_NOEXCEPT 797 # define _NOEXCEPT_DEBUG 798 # define _NOEXCEPT_DEBUG_(x) 799 # else 800 # define _NOEXCEPT_DEBUG noexcept(false) 801 # define _NOEXCEPT_DEBUG_(x) noexcept(false) 802 #endif 803 #else 804 # define _NOEXCEPT_DEBUG _NOEXCEPT 805 # define _NOEXCEPT_DEBUG_(x) _NOEXCEPT_(x) 806 #endif 807 808 #ifdef _LIBCPP_HAS_NO_UNICODE_CHARS 809 typedef unsigned short char16_t; 810 typedef unsigned int char32_t; 811 #endif // _LIBCPP_HAS_NO_UNICODE_CHARS 812 813 #ifndef __SIZEOF_INT128__ 814 #define _LIBCPP_HAS_NO_INT128 815 #endif 816 817 #ifdef _LIBCPP_CXX03_LANG 818 # if __has_extension(c_static_assert) 819 # define static_assert(__b, __m) _Static_assert(__b, __m) 820 # else 821 extern "C++" { 822 template <bool> struct __static_assert_test; 823 template <> struct __static_assert_test<true> {}; 824 template <unsigned> struct __static_assert_check {}; 825 } 826 #define static_assert(__b, __m) \ 827 typedef __static_assert_check<sizeof(__static_assert_test<(__b)>)> \ 828 _LIBCPP_CONCAT(__t, __LINE__) 829 # endif // __has_extension(c_static_assert) 830 #endif // _LIBCPP_CXX03_LANG 831 832 #ifdef _LIBCPP_HAS_NO_DECLTYPE 833 // GCC 4.6 provides __decltype in all standard modes. 834 #if __has_keyword(__decltype) || _LIBCPP_CLANG_VER >= 304 || _GNUC_VER >= 406 835 # define decltype(__x) __decltype(__x) 836 #else 837 # define decltype(__x) __typeof__(__x) 838 #endif 839 #endif 840 841 #ifdef _LIBCPP_HAS_NO_CONSTEXPR 842 #define _LIBCPP_CONSTEXPR 843 #else 844 #define _LIBCPP_CONSTEXPR constexpr 845 #endif 846 847 #ifdef _LIBCPP_CXX03_LANG 848 #define _LIBCPP_DEFAULT {} 849 #else 850 #define _LIBCPP_DEFAULT = default; 851 #endif 852 853 #ifdef _LIBCPP_CXX03_LANG 854 #define _LIBCPP_EQUAL_DELETE 855 #else 856 #define _LIBCPP_EQUAL_DELETE = delete 857 #endif 858 859 #ifdef __GNUC__ 860 #define _NOALIAS __attribute__((__malloc__)) 861 #else 862 #define _NOALIAS 863 #endif 864 865 #if __has_feature(cxx_explicit_conversions) || defined(__IBMCPP__) || \ 866 (!defined(_LIBCPP_CXX03_LANG) && defined(__GNUC__)) // All supported GCC versions 867 # define _LIBCPP_EXPLICIT explicit 868 #else 869 # define _LIBCPP_EXPLICIT 870 #endif 871 872 #if !__has_builtin(__builtin_operator_new) || !__has_builtin(__builtin_operator_delete) 873 # define _LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE 874 #endif 875 876 #ifdef _LIBCPP_HAS_NO_STRONG_ENUMS 877 #define _LIBCPP_DECLARE_STRONG_ENUM(x) struct _LIBCPP_TYPE_VIS x { enum __lx 878 #define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) \ 879 __lx __v_; \ 880 _LIBCPP_ALWAYS_INLINE x(__lx __v) : __v_(__v) {} \ 881 _LIBCPP_ALWAYS_INLINE explicit x(int __v) : __v_(static_cast<__lx>(__v)) {} \ 882 _LIBCPP_ALWAYS_INLINE operator int() const {return __v_;} \ 883 }; 884 #else // _LIBCPP_HAS_NO_STRONG_ENUMS 885 #define _LIBCPP_DECLARE_STRONG_ENUM(x) enum class _LIBCPP_ENUM_VIS x 886 #define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) 887 #endif // _LIBCPP_HAS_NO_STRONG_ENUMS 888 889 #ifdef _LIBCPP_DEBUG 890 # if _LIBCPP_DEBUG == 0 891 # define _LIBCPP_DEBUG_LEVEL 1 892 # elif _LIBCPP_DEBUG == 1 893 # define _LIBCPP_DEBUG_LEVEL 2 894 # else 895 # error Supported values for _LIBCPP_DEBUG are 0 and 1 896 # endif 897 # if !defined(_LIBCPP_BUILDING_LIBRARY) 898 # define _LIBCPP_EXTERN_TEMPLATE(...) 899 # endif 900 #endif 901 902 #ifdef _LIBCPP_DISABLE_EXTERN_TEMPLATE 903 #define _LIBCPP_EXTERN_TEMPLATE(...) 904 #define _LIBCPP_EXTERN_TEMPLATE2(...) 905 #endif 906 907 #ifndef _LIBCPP_EXTERN_TEMPLATE 908 #define _LIBCPP_EXTERN_TEMPLATE(...) extern template __VA_ARGS__; 909 #endif 910 911 #ifndef _LIBCPP_EXTERN_TEMPLATE2 912 #define _LIBCPP_EXTERN_TEMPLATE2(...) extern template __VA_ARGS__; 913 #endif 914 915 #if defined(__APPLE__) && defined(__LP64__) && !defined(__x86_64__) 916 #define _LIBCPP_NONUNIQUE_RTTI_BIT (1ULL << 63) 917 #endif 918 919 #if defined(__APPLE__) || defined(__FreeBSD__) || defined(_LIBCPP_MSVCRT_LIKE) || \ 920 defined(__sun__) || defined(__NetBSD__) || defined(__CloudABI__) 921 #define _LIBCPP_LOCALE__L_EXTENSIONS 1 922 #endif 923 924 #if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__)) 925 // Most unix variants have catopen. These are the specific ones that don't. 926 #if !defined(__BIONIC__) && !defined(_NEWLIB_VERSION) 927 #define _LIBCPP_HAS_CATOPEN 1 928 #endif 929 #endif 930 931 #ifdef __FreeBSD__ 932 #define _DECLARE_C99_LDBL_MATH 1 933 #endif 934 935 #if defined(__APPLE__) 936 # if !defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && \ 937 defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) 938 # define __MAC_OS_X_VERSION_MIN_REQUIRED __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ 939 # endif 940 # if defined(__MAC_OS_X_VERSION_MIN_REQUIRED) 941 # if __MAC_OS_X_VERSION_MIN_REQUIRED < 1060 942 # define _LIBCPP_HAS_NO_ALIGNED_ALLOCATION 943 # endif 944 # endif 945 #endif // defined(__APPLE__) 946 947 #if defined(__APPLE__) || defined(__FreeBSD__) 948 #define _LIBCPP_HAS_DEFAULTRUNELOCALE 949 #endif 950 951 #if defined(__APPLE__) || defined(__FreeBSD__) || defined(__sun__) 952 #define _LIBCPP_WCTYPE_IS_MASK 953 #endif 954 955 #ifndef _LIBCPP_STD_VER 956 # if __cplusplus <= 201103L 957 # define _LIBCPP_STD_VER 11 958 # elif __cplusplus <= 201402L 959 # define _LIBCPP_STD_VER 14 960 # elif __cplusplus <= 201703L 961 # define _LIBCPP_STD_VER 17 962 # else 963 # define _LIBCPP_STD_VER 18 // current year, or date of c++2a ratification 964 # endif 965 #endif // _LIBCPP_STD_VER 966 967 #if _LIBCPP_STD_VER > 11 968 #define _LIBCPP_DEPRECATED [[deprecated]] 969 #else 970 #define _LIBCPP_DEPRECATED 971 #endif 972 973 #if _LIBCPP_STD_VER <= 11 974 #define _LIBCPP_EXPLICIT_AFTER_CXX11 975 #define _LIBCPP_DEPRECATED_AFTER_CXX11 976 #else 977 #define _LIBCPP_EXPLICIT_AFTER_CXX11 explicit 978 #define _LIBCPP_DEPRECATED_AFTER_CXX11 [[deprecated]] 979 #endif 980 981 #if _LIBCPP_STD_VER > 11 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR) 982 #define _LIBCPP_CONSTEXPR_AFTER_CXX11 constexpr 983 #else 984 #define _LIBCPP_CONSTEXPR_AFTER_CXX11 985 #endif 986 987 #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR) 988 #define _LIBCPP_CONSTEXPR_AFTER_CXX14 constexpr 989 #else 990 #define _LIBCPP_CONSTEXPR_AFTER_CXX14 991 #endif 992 993 #if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR) 994 #define _LIBCPP_CONSTEXPR_AFTER_CXX17 constexpr 995 #else 996 #define _LIBCPP_CONSTEXPR_AFTER_CXX17 997 #endif 998 999 #if __has_cpp_attribute(nodiscard) && _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_DISABLE_NODISCARD_AFTER_CXX17) 1000 #define _LIBCPP_NODISCARD_AFTER_CXX17 [[nodiscard]] 1001 #else 1002 #define _LIBCPP_NODISCARD_AFTER_CXX17 1003 #endif 1004 1005 #if _LIBCPP_STD_VER > 14 && defined(__cpp_inline_variables) && (__cpp_inline_variables >= 201606L) 1006 # define _LIBCPP_INLINE_VAR inline 1007 #else 1008 # define _LIBCPP_INLINE_VAR 1009 #endif 1010 1011 #ifdef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1012 # define _LIBCPP_EXPLICIT_MOVE(x) _VSTD::move(x) 1013 #else 1014 # define _LIBCPP_EXPLICIT_MOVE(x) (x) 1015 #endif 1016 1017 #ifndef _LIBCPP_HAS_NO_ASAN 1018 _LIBCPP_FUNC_VIS extern "C" void __sanitizer_annotate_contiguous_container( 1019 const void *, const void *, const void *, const void *); 1020 #endif 1021 1022 // Try to find out if RTTI is disabled. 1023 // g++ and cl.exe have RTTI on by default and define a macro when it is. 1024 // g++ only defines the macro in 4.3.2 and onwards. 1025 #if !defined(_LIBCPP_NO_RTTI) 1026 # if defined(__GNUC__) && ((__GNUC__ >= 5) || (__GNUC__ == 4 && \ 1027 (__GNUC_MINOR__ >= 3 || __GNUC_PATCHLEVEL__ >= 2))) && !defined(__GXX_RTTI) 1028 # define _LIBCPP_NO_RTTI 1029 # elif defined(_LIBCPP_COMPILER_MSVC) && !defined(_CPPRTTI) 1030 # define _LIBCPP_NO_RTTI 1031 # endif 1032 #endif 1033 1034 #ifndef _LIBCPP_WEAK 1035 # define _LIBCPP_WEAK __attribute__((__weak__)) 1036 #endif 1037 1038 // Thread API 1039 #if !defined(_LIBCPP_HAS_NO_THREADS) && \ 1040 !defined(_LIBCPP_HAS_THREAD_API_PTHREAD) && \ 1041 !defined(_LIBCPP_HAS_THREAD_API_WIN32) && \ 1042 !defined(_LIBCPP_HAS_THREAD_API_EXTERNAL) 1043 # if defined(__FreeBSD__) || \ 1044 defined(__Fuchsia__) || \ 1045 defined(__NetBSD__) || \ 1046 defined(__linux__) || \ 1047 defined(__APPLE__) || \ 1048 defined(__CloudABI__) || \ 1049 defined(__sun__) || \ 1050 (defined(__MINGW32__) && __libcpp_has_include(<pthread.h>)) 1051 # define _LIBCPP_HAS_THREAD_API_PTHREAD 1052 # elif defined(_LIBCPP_WIN32API) 1053 # define _LIBCPP_HAS_THREAD_API_WIN32 1054 # else 1055 # error "No thread API" 1056 # endif // _LIBCPP_HAS_THREAD_API 1057 #endif // _LIBCPP_HAS_NO_THREADS 1058 1059 #if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_PTHREAD) 1060 # error _LIBCPP_HAS_THREAD_API_PTHREAD may only be defined when \ 1061 _LIBCPP_HAS_NO_THREADS is not defined. 1062 #endif 1063 1064 #if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_EXTERNAL) 1065 # error _LIBCPP_HAS_THREAD_API_EXTERNAL may not be defined when \ 1066 _LIBCPP_HAS_NO_THREADS is defined. 1067 #endif 1068 1069 #if defined(_LIBCPP_HAS_NO_MONOTONIC_CLOCK) && !defined(_LIBCPP_HAS_NO_THREADS) 1070 # error _LIBCPP_HAS_NO_MONOTONIC_CLOCK may only be defined when \ 1071 _LIBCPP_HAS_NO_THREADS is defined. 1072 #endif 1073 1074 // Systems that use capability-based security (FreeBSD with Capsicum, 1075 // Nuxi CloudABI) may only provide local filesystem access (using *at()). 1076 // Functions like open(), rename(), unlink() and stat() should not be 1077 // used, as they attempt to access the global filesystem namespace. 1078 #ifdef __CloudABI__ 1079 #define _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE 1080 #endif 1081 1082 // CloudABI is intended for running networked services. Processes do not 1083 // have standard input and output channels. 1084 #ifdef __CloudABI__ 1085 #define _LIBCPP_HAS_NO_STDIN 1086 #define _LIBCPP_HAS_NO_STDOUT 1087 #endif 1088 1089 #if defined(__BIONIC__) || defined(__CloudABI__) || \ 1090 defined(__Fuchsia__) || defined(_LIBCPP_HAS_MUSL_LIBC) 1091 #define _LIBCPP_PROVIDES_DEFAULT_RUNE_TABLE 1092 #endif 1093 1094 // Thread-unsafe functions such as strtok() and localtime() 1095 // are not available. 1096 #ifdef __CloudABI__ 1097 #define _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS 1098 #endif 1099 1100 #if __has_feature(cxx_atomic) || __has_extension(c_atomic) || __has_keyword(_Atomic) 1101 #define _LIBCPP_HAS_C_ATOMIC_IMP 1102 #elif _GNUC_VER > 407 1103 #define _LIBCPP_HAS_GCC_ATOMIC_IMP 1104 #endif 1105 1106 #if (!defined(_LIBCPP_HAS_C_ATOMIC_IMP) && !defined(_LIBCPP_HAS_GCC_ATOMIC_IMP)) \ 1107 || defined(_LIBCPP_HAS_NO_THREADS) 1108 #define _LIBCPP_HAS_NO_ATOMIC_HEADER 1109 #endif 1110 1111 #ifndef _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK 1112 #define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK 1113 #endif 1114 1115 #if defined(_LIBCPP_ENABLE_THREAD_SAFETY_ANNOTATIONS) 1116 #if defined(__clang__) && __has_attribute(acquire_capability) 1117 // Work around the attribute handling in clang. When both __declspec and 1118 // __attribute__ are present, the processing goes awry preventing the definition 1119 // of the types. 1120 #if !defined(_LIBCPP_OBJECT_FORMAT_COFF) 1121 #define _LIBCPP_HAS_THREAD_SAFETY_ANNOTATIONS 1122 #endif 1123 #endif 1124 #endif 1125 1126 #if __has_attribute(require_constant_initialization) 1127 #define _LIBCPP_SAFE_STATIC __attribute__((__require_constant_initialization__)) 1128 #else 1129 #define _LIBCPP_SAFE_STATIC 1130 #endif 1131 1132 #if !__has_builtin(__builtin_addressof) && _GNUC_VER < 700 1133 # define _LIBCPP_HAS_NO_BUILTIN_ADDRESSOF 1134 #endif 1135 1136 #if !defined(_LIBCPP_HAS_NO_OFF_T_FUNCTIONS) 1137 #if defined(_LIBCPP_MSVCRT) || defined(_NEWLIB_VERSION) 1138 #define _LIBCPP_HAS_NO_OFF_T_FUNCTIONS 1139 #endif 1140 #endif 1141 1142 #if __has_attribute(diagnose_if) && !defined(_LIBCPP_DISABLE_ADDITIONAL_DIAGNOSTICS) 1143 # define _LIBCPP_DIAGNOSE_WARNING(...) \ 1144 __attribute__((diagnose_if(__VA_ARGS__, "warning"))) 1145 # define _LIBCPP_DIAGNOSE_ERROR(...) \ 1146 __attribute__((diagnose_if(__VA_ARGS__, "error"))) 1147 #else 1148 # define _LIBCPP_DIAGNOSE_WARNING(...) 1149 # define _LIBCPP_DIAGNOSE_ERROR(...) 1150 #endif 1151 1152 #if __has_attribute(fallthough) || _GNUC_VER >= 700 1153 // Use a function like macro to imply that it must be followed by a semicolon 1154 #define _LIBCPP_FALLTHROUGH() __attribute__((__fallthrough__)) 1155 #else 1156 #define _LIBCPP_FALLTHROUGH() ((void)0) 1157 #endif 1158 1159 #if defined(_LIBCPP_ABI_MICROSOFT) && \ 1160 (defined(_LIBCPP_COMPILER_MSVC) || __has_declspec_attribute(empty_bases)) 1161 # define _LIBCPP_DECLSPEC_EMPTY_BASES __declspec(empty_bases) 1162 #else 1163 # define _LIBCPP_DECLSPEC_EMPTY_BASES 1164 #endif 1165 1166 #if defined(_LIBCPP_ENABLE_CXX17_REMOVED_FEATURES) 1167 # define _LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR 1168 # define _LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS 1169 # define _LIBCPP_ENABLE_CXX17_REMOVED_RANDOM_SHUFFLE 1170 # define _LIBCPP_ENABLE_CXX17_REMOVED_BINDERS 1171 #endif // _LIBCPP_ENABLE_CXX17_REMOVED_FEATURES 1172 1173 #if !defined(__cpp_deduction_guides) || __cpp_deduction_guides < 201611 1174 # define _LIBCPP_HAS_NO_DEDUCTION_GUIDES 1175 #endif 1176 1177 #if !__has_keyword(__is_aggregate) && (_GNUC_VER_NEW < 7001) 1178 # define _LIBCPP_HAS_NO_IS_AGGREGATE 1179 #endif 1180 1181 #if !defined(__cpp_coroutines) || __cpp_coroutines < 201703L 1182 # define _LIBCPP_HAS_NO_COROUTINES 1183 #endif 1184 1185 // Decide whether to use availability macros. 1186 #if !defined(_LIBCPP_BUILDING_LIBRARY) && \ 1187 !defined(_LIBCPP_DISABLE_AVAILABILITY) && \ 1188 __has_feature(attribute_availability_with_strict) && \ 1189 __has_feature(attribute_availability_in_templates) 1190 #ifdef __APPLE__ 1191 #define _LIBCPP_USE_AVAILABILITY_APPLE 1192 #endif 1193 #endif 1194 1195 // Define availability macros. 1196 #if defined(_LIBCPP_USE_AVAILABILITY_APPLE) 1197 #define _LIBCPP_AVAILABILITY_SHARED_MUTEX \ 1198 __attribute__((availability(macosx,strict,introduced=10.12))) \ 1199 __attribute__((availability(ios,strict,introduced=10.0))) \ 1200 __attribute__((availability(tvos,strict,introduced=10.0))) \ 1201 __attribute__((availability(watchos,strict,introduced=3.0))) 1202 #define _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS __attribute__((unavailable)) 1203 #define _LIBCPP_AVAILABILITY_BAD_ARRAY_LENGTH __attribute__((unavailable)) 1204 #define _LIBCPP_AVAILABILITY_BAD_ANY_CAST __attribute__((unavailable)) 1205 #define _LIBCPP_AVAILABILITY_UNCAUGHT_EXCEPTIONS \ 1206 __attribute__((availability(macosx,strict,introduced=10.12))) \ 1207 __attribute__((availability(ios,strict,introduced=10.0))) \ 1208 __attribute__((availability(tvos,strict,introduced=10.0))) \ 1209 __attribute__((availability(watchos,strict,introduced=3.0))) 1210 #define _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE \ 1211 __attribute__((availability(macosx,strict,introduced=10.12))) \ 1212 __attribute__((availability(ios,strict,introduced=10.0))) \ 1213 __attribute__((availability(tvos,strict,introduced=10.0))) \ 1214 __attribute__((availability(watchos,strict,introduced=3.0))) 1215 #define _LIBCPP_AVAILABILITY_FUTURE_ERROR \ 1216 __attribute__((availability(ios,strict,introduced=6.0))) 1217 #define _LIBCPP_AVAILABILITY_TYPEINFO_VTABLE \ 1218 __attribute__((availability(macosx,strict,introduced=10.9))) \ 1219 __attribute__((availability(ios,strict,introduced=7.0))) 1220 #define _LIBCPP_AVAILABILITY_LOCALE_CATEGORY \ 1221 __attribute__((availability(macosx,strict,introduced=10.9))) \ 1222 __attribute__((availability(ios,strict,introduced=7.0))) 1223 #define _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR \ 1224 __attribute__((availability(macosx,strict,introduced=10.9))) \ 1225 __attribute__((availability(ios,strict,introduced=7.0))) 1226 #else 1227 #define _LIBCPP_AVAILABILITY_SHARED_MUTEX 1228 #define _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS 1229 #define _LIBCPP_AVAILABILITY_BAD_ARRAY_LENGTH 1230 #define _LIBCPP_AVAILABILITY_BAD_ANY_CAST 1231 #define _LIBCPP_AVAILABILITY_UNCAUGHT_EXCEPTIONS 1232 #define _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE 1233 #define _LIBCPP_AVAILABILITY_FUTURE_ERROR 1234 #define _LIBCPP_AVAILABILITY_TYPEINFO_VTABLE 1235 #define _LIBCPP_AVAILABILITY_LOCALE_CATEGORY 1236 #define _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR 1237 #endif 1238 1239 // Define availability that depends on _LIBCPP_NO_EXCEPTIONS. 1240 #ifdef _LIBCPP_NO_EXCEPTIONS 1241 #define _LIBCPP_AVAILABILITY_DYNARRAY 1242 #define _LIBCPP_AVAILABILITY_FUTURE 1243 #define _LIBCPP_AVAILABILITY_THROW_BAD_ANY_CAST 1244 #else 1245 #define _LIBCPP_AVAILABILITY_DYNARRAY _LIBCPP_AVAILABILITY_BAD_ARRAY_LENGTH 1246 #define _LIBCPP_AVAILABILITY_FUTURE _LIBCPP_AVAILABILITY_FUTURE_ERROR 1247 #define _LIBCPP_AVAILABILITY_THROW_BAD_ANY_CAST \ 1248 _LIBCPP_AVAILABILITY_BAD_ANY_CAST 1249 #endif 1250 1251 // Availability of stream API in the dylib got dropped and re-added. The 1252 // extern template should effectively be available at: 1253 // availability(macosx,introduced=10.9) 1254 // availability(ios,introduced=7.0) 1255 #if defined(_LIBCPP_USE_AVAILABILITY_APPLE) && \ 1256 ((defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && \ 1257 __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 1090) || \ 1258 (defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) && \ 1259 __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ < 70000)) 1260 #define _LIBCPP_AVAILABILITY_NO_STREAMS_EXTERN_TEMPLATE 1261 #endif 1262 1263 #if defined(_LIBCPP_COMPILER_IBM) 1264 #define _LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO 1265 #endif 1266 1267 #if defined(_LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO) 1268 # define _LIBCPP_PUSH_MACROS 1269 # define _LIBCPP_POP_MACROS 1270 #else 1271 // Don't warn about macro conflicts when we can restore them at the 1272 // end of the header. 1273 # ifndef _LIBCPP_DISABLE_MACRO_CONFLICT_WARNINGS 1274 # define _LIBCPP_DISABLE_MACRO_CONFLICT_WARNINGS 1275 # endif 1276 # if defined(_LIBCPP_COMPILER_MSVC) 1277 # define _LIBCPP_PUSH_MACROS \ 1278 __pragma(push_macro("min")) \ 1279 __pragma(push_macro("max")) 1280 # define _LIBCPP_POP_MACROS \ 1281 __pragma(pop_macro("min")) \ 1282 __pragma(pop_macro("max")) 1283 # else 1284 # define _LIBCPP_PUSH_MACROS \ 1285 _Pragma("push_macro(\"min\")") \ 1286 _Pragma("push_macro(\"max\")") 1287 # define _LIBCPP_POP_MACROS \ 1288 _Pragma("pop_macro(\"min\")") \ 1289 _Pragma("pop_macro(\"max\")") 1290 # endif 1291 #endif // defined(_LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO) 1292 1293 #ifndef _LIBCPP_NO_AUTO_LINK 1294 # if defined(_LIBCPP_ABI_MICROSOFT) && !defined(_LIBCPP_BUILDING_LIBRARY) 1295 # if defined(_DLL) 1296 # pragma comment(lib, "c++.lib") 1297 # else 1298 # pragma comment(lib, "libc++.lib") 1299 # endif 1300 # endif // defined(_LIBCPP_ABI_MICROSOFT) && !defined(_LIBCPP_BUILDING_LIBRARY) 1301 #endif // _LIBCPP_NO_AUTO_LINK 1302 1303 #endif // __cplusplus 1304 1305 #endif // _LIBCPP_CONFIG 1306
