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 #else 29 #define _GNUC_VER 0 30 #endif 31 32 #define _LIBCPP_VERSION 5000 33 34 #ifndef _LIBCPP_ABI_VERSION 35 #define _LIBCPP_ABI_VERSION 1 36 #endif 37 38 #if defined(_LIBCPP_ABI_UNSTABLE) || _LIBCPP_ABI_VERSION >= 2 39 // Change short string representation so that string data starts at offset 0, 40 // improving its alignment in some cases. 41 #define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT 42 // Fix deque iterator type in order to support incomplete types. 43 #define _LIBCPP_ABI_INCOMPLETE_TYPES_IN_DEQUE 44 // Fix undefined behavior in how std::list stores it's linked nodes. 45 #define _LIBCPP_ABI_LIST_REMOVE_NODE_POINTER_UB 46 // Fix undefined behavior in how __tree stores its end and parent nodes. 47 #define _LIBCPP_ABI_TREE_REMOVE_NODE_POINTER_UB 48 // Fix undefined behavior in how __hash_table stores it's pointer types 49 #define _LIBCPP_ABI_FIX_UNORDERED_NODE_POINTER_UB 50 #define _LIBCPP_ABI_FORWARD_LIST_REMOVE_NODE_POINTER_UB 51 #define _LIBCPP_ABI_FIX_UNORDERED_CONTAINER_SIZE_TYPE 52 #define _LIBCPP_ABI_VARIADIC_LOCK_GUARD 53 // Don't use a nullptr_t simulation type in C++03 instead using C++11 nullptr 54 // provided under the alternate keyword __nullptr, which changes the mangling 55 // of nullptr_t. This option is ABI incompatible with GCC in C++03 mode. 56 #define _LIBCPP_ABI_ALWAYS_USE_CXX11_NULLPTR 57 // Define the `pointer_safety` enum as a C++11 strongly typed enumeration 58 // instead of as a class simulating an enum. If this option is enabled 59 // `pointer_safety` and `get_pointer_safety()` will no longer be available 60 // in C++03. 61 #define _LIBCPP_ABI_POINTER_SAFETY_ENUM_TYPE 62 #elif _LIBCPP_ABI_VERSION == 1 63 #if !defined(_WIN32) 64 // Enable compiling copies of now inline methods into the dylib to support 65 // applications compiled against older libraries. 66 #define _LIBCPP_DEPRECATED_ABI_LEGACY_LIBRARY_DEFINITIONS_FOR_INLINE_FUNCTIONS 67 #endif 68 // Feature macros for disabling pre ABI v1 features. All of these options 69 // are deprecated. 70 #if defined(__FreeBSD__) 71 #define _LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR 72 #endif 73 #endif 74 75 #ifdef _LIBCPP_TRIVIAL_PAIR_COPY_CTOR 76 #error "_LIBCPP_TRIVIAL_PAIR_COPY_CTOR" is no longer supported. \ 77 use _LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR instead 78 #endif 79 80 #define _LIBCPP_CONCAT1(_LIBCPP_X,_LIBCPP_Y) _LIBCPP_X##_LIBCPP_Y 81 #define _LIBCPP_CONCAT(_LIBCPP_X,_LIBCPP_Y) _LIBCPP_CONCAT1(_LIBCPP_X,_LIBCPP_Y) 82 83 #define _LIBCPP_NAMESPACE _LIBCPP_CONCAT(__,_LIBCPP_ABI_VERSION) 84 85 #if __cplusplus < 201103L 86 #define _LIBCPP_CXX03_LANG 87 #endif 88 89 #ifndef __has_attribute 90 #define __has_attribute(__x) 0 91 #endif 92 #ifndef __has_builtin 93 #define __has_builtin(__x) 0 94 #endif 95 #ifndef __has_extension 96 #define __has_extension(__x) 0 97 #endif 98 #ifndef __has_feature 99 #define __has_feature(__x) 0 100 #endif 101 // '__is_identifier' returns '0' if '__x' is a reserved identifier provided by 102 // the compiler and '1' otherwise. 103 #ifndef __is_identifier 104 #define __is_identifier(__x) 1 105 #endif 106 #ifndef __has_declspec_attribute 107 #define __has_declspec_attribute(__x) 0 108 #endif 109 110 #define __has_keyword(__x) !(__is_identifier(__x)) 111 112 #if defined(__clang__) 113 #define _LIBCPP_COMPILER_CLANG 114 # ifndef __apple_build_version__ 115 # define _LIBCPP_CLANG_VER (__clang_major__ * 100 + __clang_minor__) 116 # endif 117 #elif defined(__GNUC__) 118 #define _LIBCPP_COMPILER_GCC 119 #elif defined(_MSC_VER) 120 #define _LIBCPP_COMPILER_MSVC 121 #elif defined(__IBMCPP__) 122 #define _LIBCPP_COMPILER_IBM 123 #endif 124 125 #ifndef _LIBCPP_CLANG_VER 126 #define _LIBCPP_CLANG_VER 0 127 #endif 128 129 // FIXME: ABI detection should be done via compiler builtin macros. This 130 // is just a placeholder until Clang implements such macros. For now assume 131 // that Windows compilers pretending to be MSVC++ target the microsoft ABI. 132 #if defined(_WIN32) && defined(_MSC_VER) 133 # define _LIBCPP_ABI_MICROSOFT 134 #else 135 # define _LIBCPP_ABI_ITANIUM 136 #endif 137 138 // Need to detect which libc we're using if we're on Linux. 139 #if defined(__linux__) 140 #include <features.h> 141 #if !defined(__GLIBC_PREREQ) 142 #define __GLIBC_PREREQ(a, b) 0 143 #endif // !defined(__GLIBC_PREREQ) 144 #endif // defined(__linux__) 145 146 #ifdef __LITTLE_ENDIAN__ 147 #if __LITTLE_ENDIAN__ 148 #define _LIBCPP_LITTLE_ENDIAN 1 149 #define _LIBCPP_BIG_ENDIAN 0 150 #endif // __LITTLE_ENDIAN__ 151 #endif // __LITTLE_ENDIAN__ 152 153 #ifdef __BIG_ENDIAN__ 154 #if __BIG_ENDIAN__ 155 #define _LIBCPP_LITTLE_ENDIAN 0 156 #define _LIBCPP_BIG_ENDIAN 1 157 #endif // __BIG_ENDIAN__ 158 #endif // __BIG_ENDIAN__ 159 160 #ifdef __BYTE_ORDER__ 161 #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 162 #define _LIBCPP_LITTLE_ENDIAN 1 163 #define _LIBCPP_BIG_ENDIAN 0 164 #elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 165 #define _LIBCPP_LITTLE_ENDIAN 0 166 #define _LIBCPP_BIG_ENDIAN 1 167 #endif // __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 168 #endif // __BYTE_ORDER__ 169 170 #ifdef __FreeBSD__ 171 # include <sys/endian.h> 172 # if _BYTE_ORDER == _LITTLE_ENDIAN 173 # define _LIBCPP_LITTLE_ENDIAN 1 174 # define _LIBCPP_BIG_ENDIAN 0 175 # else // _BYTE_ORDER == _LITTLE_ENDIAN 176 # define _LIBCPP_LITTLE_ENDIAN 0 177 # define _LIBCPP_BIG_ENDIAN 1 178 # endif // _BYTE_ORDER == _LITTLE_ENDIAN 179 # ifndef __LONG_LONG_SUPPORTED 180 # define _LIBCPP_HAS_NO_LONG_LONG 181 # endif // __LONG_LONG_SUPPORTED 182 #endif // __FreeBSD__ 183 184 #ifdef __NetBSD__ 185 # include <sys/endian.h> 186 # if _BYTE_ORDER == _LITTLE_ENDIAN 187 # define _LIBCPP_LITTLE_ENDIAN 1 188 # define _LIBCPP_BIG_ENDIAN 0 189 # else // _BYTE_ORDER == _LITTLE_ENDIAN 190 # define _LIBCPP_LITTLE_ENDIAN 0 191 # define _LIBCPP_BIG_ENDIAN 1 192 # endif // _BYTE_ORDER == _LITTLE_ENDIAN 193 # define _LIBCPP_HAS_QUICK_EXIT 194 #endif // __NetBSD__ 195 196 #if defined(_WIN32) 197 # define _LIBCPP_WIN32API 1 198 # define _LIBCPP_LITTLE_ENDIAN 1 199 # define _LIBCPP_BIG_ENDIAN 0 200 # define _LIBCPP_SHORT_WCHAR 1 201 // If mingw not explicitly detected, assume using MS C runtime only. 202 # ifndef __MINGW32__ 203 # define _LIBCPP_MSVCRT // Using Microsoft's C Runtime library 204 # endif 205 # if (defined(_M_AMD64) || defined(__x86_64__)) || (defined(_M_ARM) || defined(__arm__)) 206 # define _LIBCPP_HAS_BITSCAN64 207 # endif 208 # if defined(_LIBCPP_MSVCRT) 209 # define _LIBCPP_HAS_QUICK_EXIT 210 # endif 211 #endif // defined(_WIN32) 212 213 #ifdef __sun__ 214 # include <sys/isa_defs.h> 215 # ifdef _LITTLE_ENDIAN 216 # define _LIBCPP_LITTLE_ENDIAN 1 217 # define _LIBCPP_BIG_ENDIAN 0 218 # else 219 # define _LIBCPP_LITTLE_ENDIAN 0 220 # define _LIBCPP_BIG_ENDIAN 1 221 # endif 222 #endif // __sun__ 223 224 #if defined(__CloudABI__) 225 // Certain architectures provide arc4random(). Prefer using 226 // arc4random() over /dev/{u,}random to make it possible to obtain 227 // random data even when using sandboxing mechanisms such as chroots, 228 // Capsicum, etc. 229 # define _LIBCPP_USING_ARC4_RANDOM 230 #elif defined(__native_client__) 231 // NaCl's sandbox (which PNaCl also runs in) doesn't allow filesystem access, 232 // including accesses to the special files under /dev. C++11's 233 // std::random_device is instead exposed through a NaCl syscall. 234 # define _LIBCPP_USING_NACL_RANDOM 235 #elif defined(_LIBCPP_WIN32API) 236 # define _LIBCPP_USING_WIN32_RANDOM 237 #else 238 # define _LIBCPP_USING_DEV_RANDOM 239 #endif 240 241 #if !defined(_LIBCPP_LITTLE_ENDIAN) || !defined(_LIBCPP_BIG_ENDIAN) 242 # include <endian.h> 243 # if __BYTE_ORDER == __LITTLE_ENDIAN 244 # define _LIBCPP_LITTLE_ENDIAN 1 245 # define _LIBCPP_BIG_ENDIAN 0 246 # elif __BYTE_ORDER == __BIG_ENDIAN 247 # define _LIBCPP_LITTLE_ENDIAN 0 248 # define _LIBCPP_BIG_ENDIAN 1 249 # else // __BYTE_ORDER == __BIG_ENDIAN 250 # error unable to determine endian 251 # endif 252 #endif // !defined(_LIBCPP_LITTLE_ENDIAN) || !defined(_LIBCPP_BIG_ENDIAN) 253 254 #if __has_attribute(__no_sanitize__) 255 #define _LIBCPP_NO_CFI __attribute__((__no_sanitize__("cfi"))) 256 #else 257 #define _LIBCPP_NO_CFI 258 #endif 259 260 #if defined(_LIBCPP_COMPILER_CLANG) 261 262 // _LIBCPP_ALTERNATE_STRING_LAYOUT is an old name for 263 // _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT left here for backward compatibility. 264 #if (defined(__APPLE__) && !defined(__i386__) && !defined(__x86_64__) && \ 265 !defined(__arm__)) || \ 266 defined(_LIBCPP_ALTERNATE_STRING_LAYOUT) 267 #define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT 268 #endif 269 270 #if __has_feature(cxx_alignas) 271 # define _ALIGNAS_TYPE(x) alignas(x) 272 # define _ALIGNAS(x) alignas(x) 273 #else 274 # define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x)))) 275 # define _ALIGNAS(x) __attribute__((__aligned__(x))) 276 #endif 277 278 #if __cplusplus < 201103L 279 typedef __char16_t char16_t; 280 typedef __char32_t char32_t; 281 #endif 282 283 #if !(__has_feature(cxx_exceptions)) && !defined(_LIBCPP_NO_EXCEPTIONS) 284 #define _LIBCPP_NO_EXCEPTIONS 285 #endif 286 287 #if !(__has_feature(cxx_rtti)) 288 #define _LIBCPP_NO_RTTI 289 #endif 290 291 #if !(__has_feature(cxx_strong_enums)) 292 #define _LIBCPP_HAS_NO_STRONG_ENUMS 293 #endif 294 295 #if !(__has_feature(cxx_decltype)) 296 #define _LIBCPP_HAS_NO_DECLTYPE 297 #endif 298 299 #if __has_feature(cxx_attributes) 300 # define _LIBCPP_NORETURN [[noreturn]] 301 #else 302 # define _LIBCPP_NORETURN __attribute__ ((noreturn)) 303 #endif 304 305 #if !(__has_feature(cxx_lambdas)) 306 #define _LIBCPP_HAS_NO_LAMBDAS 307 #endif 308 309 #if !(__has_feature(cxx_nullptr)) 310 # if (__has_extension(cxx_nullptr) || __has_keyword(__nullptr)) && defined(_LIBCPP_ABI_ALWAYS_USE_CXX11_NULLPTR) 311 # define nullptr __nullptr 312 # else 313 # define _LIBCPP_HAS_NO_NULLPTR 314 # endif 315 #endif 316 317 #if !(__has_feature(cxx_rvalue_references)) 318 #define _LIBCPP_HAS_NO_RVALUE_REFERENCES 319 #endif 320 321 #if !(__has_feature(cxx_auto_type)) 322 #define _LIBCPP_HAS_NO_AUTO_TYPE 323 #endif 324 325 #if !(__has_feature(cxx_variadic_templates)) 326 #define _LIBCPP_HAS_NO_VARIADICS 327 #endif 328 329 #if !(__has_feature(cxx_generalized_initializers)) 330 #define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 331 #endif 332 333 #if __has_feature(is_base_of) 334 # define _LIBCPP_HAS_IS_BASE_OF 335 #endif 336 337 #if __has_feature(is_final) 338 # define _LIBCPP_HAS_IS_FINAL 339 #endif 340 341 // Objective-C++ features (opt-in) 342 #if __has_feature(objc_arc) 343 #define _LIBCPP_HAS_OBJC_ARC 344 #endif 345 346 #if __has_feature(objc_arc_weak) 347 #define _LIBCPP_HAS_OBJC_ARC_WEAK 348 #define _LIBCPP_HAS_NO_STRONG_ENUMS 349 #endif 350 351 #if !(__has_feature(cxx_constexpr)) 352 #define _LIBCPP_HAS_NO_CONSTEXPR 353 #endif 354 355 #if !(__has_feature(cxx_relaxed_constexpr)) 356 #define _LIBCPP_HAS_NO_CXX14_CONSTEXPR 357 #endif 358 359 #if !(__has_feature(cxx_variable_templates)) 360 #define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 361 #endif 362 363 #if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L 364 #if defined(__FreeBSD__) 365 #define _LIBCPP_HAS_QUICK_EXIT 366 #define _LIBCPP_HAS_C11_FEATURES 367 #elif defined(__Fuchsia__) 368 #define _LIBCPP_HAS_QUICK_EXIT 369 #define _LIBCPP_HAS_C11_FEATURES 370 #elif defined(__linux__) 371 #if !defined(_LIBCPP_HAS_MUSL_LIBC) 372 #if __GLIBC_PREREQ(2, 15) || defined(__BIONIC__) 373 #define _LIBCPP_HAS_QUICK_EXIT 374 #endif 375 #if __GLIBC_PREREQ(2, 17) 376 #define _LIBCPP_HAS_C11_FEATURES 377 #endif 378 #else // defined(_LIBCPP_HAS_MUSL_LIBC) 379 #define _LIBCPP_HAS_QUICK_EXIT 380 #define _LIBCPP_HAS_C11_FEATURES 381 #endif 382 #endif // __linux__ 383 #endif 384 385 #if !(__has_feature(cxx_noexcept)) 386 #define _LIBCPP_HAS_NO_NOEXCEPT 387 #endif 388 389 #if __has_feature(underlying_type) 390 # define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T) 391 #endif 392 393 #if __has_feature(is_literal) 394 # define _LIBCPP_IS_LITERAL(T) __is_literal(T) 395 #endif 396 397 // Inline namespaces are available in Clang regardless of C++ dialect. 398 #define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE { 399 #define _LIBCPP_END_NAMESPACE_STD } } 400 #define _VSTD std::_LIBCPP_NAMESPACE 401 402 namespace std { 403 inline namespace _LIBCPP_NAMESPACE { 404 } 405 } 406 407 #if !defined(_LIBCPP_HAS_NO_ASAN) && !__has_feature(address_sanitizer) 408 #define _LIBCPP_HAS_NO_ASAN 409 #endif 410 411 // Allow for build-time disabling of unsigned integer sanitization 412 #if !defined(_LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK) && __has_attribute(no_sanitize) 413 #define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK __attribute__((__no_sanitize__("unsigned-integer-overflow"))) 414 #endif 415 416 #elif defined(_LIBCPP_COMPILER_GCC) 417 418 #define _ALIGNAS(x) __attribute__((__aligned__(x))) 419 #define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x)))) 420 421 #define _LIBCPP_NORETURN __attribute__((noreturn)) 422 423 #if _GNUC_VER >= 407 424 #define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T) 425 #define _LIBCPP_IS_LITERAL(T) __is_literal_type(T) 426 #define _LIBCPP_HAS_IS_FINAL 427 #endif 428 429 #if defined(__GNUC__) && _GNUC_VER >= 403 430 # define _LIBCPP_HAS_IS_BASE_OF 431 #endif 432 433 #if !__EXCEPTIONS 434 #define _LIBCPP_NO_EXCEPTIONS 435 #endif 436 437 // constexpr was added to GCC in 4.6. 438 #if _GNUC_VER < 406 439 #define _LIBCPP_HAS_NO_CONSTEXPR 440 // Can only use constexpr in c++11 mode. 441 #elif !defined(__GXX_EXPERIMENTAL_CXX0X__) && __cplusplus < 201103L 442 #define _LIBCPP_HAS_NO_CONSTEXPR 443 #endif 444 445 // Determine if GCC supports relaxed constexpr 446 #if !defined(__cpp_constexpr) || __cpp_constexpr < 201304L 447 #define _LIBCPP_HAS_NO_CXX14_CONSTEXPR 448 #endif 449 450 // GCC 5 will support variable templates 451 #if !defined(__cpp_variable_templates) || __cpp_variable_templates < 201304L 452 #define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 453 #endif 454 455 #ifndef __GXX_EXPERIMENTAL_CXX0X__ 456 #define _LIBCPP_HAS_NO_DECLTYPE 457 #define _LIBCPP_HAS_NO_NULLPTR 458 #define _LIBCPP_HAS_NO_UNICODE_CHARS 459 #define _LIBCPP_HAS_NO_VARIADICS 460 #define _LIBCPP_HAS_NO_RVALUE_REFERENCES 461 #define _LIBCPP_HAS_NO_STRONG_ENUMS 462 #define _LIBCPP_HAS_NO_NOEXCEPT 463 464 #else // __GXX_EXPERIMENTAL_CXX0X__ 465 466 #if _GNUC_VER < 403 467 #define _LIBCPP_HAS_NO_RVALUE_REFERENCES 468 #endif 469 470 471 #if _GNUC_VER < 404 472 #define _LIBCPP_HAS_NO_DECLTYPE 473 #define _LIBCPP_HAS_NO_UNICODE_CHARS 474 #define _LIBCPP_HAS_NO_VARIADICS 475 #define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 476 #endif // _GNUC_VER < 404 477 478 #if _GNUC_VER < 406 479 #define _LIBCPP_HAS_NO_NOEXCEPT 480 #define _LIBCPP_HAS_NO_NULLPTR 481 #endif 482 483 #endif // __GXX_EXPERIMENTAL_CXX0X__ 484 485 #define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { inline namespace _LIBCPP_NAMESPACE { 486 #define _LIBCPP_END_NAMESPACE_STD } } 487 #define _VSTD std::_LIBCPP_NAMESPACE 488 489 namespace std { 490 inline namespace _LIBCPP_NAMESPACE { 491 } 492 } 493 494 #if !defined(_LIBCPP_HAS_NO_ASAN) && !defined(__SANITIZE_ADDRESS__) 495 #define _LIBCPP_HAS_NO_ASAN 496 #endif 497 498 #elif defined(_LIBCPP_COMPILER_MSVC) 499 500 #define _LIBCPP_TOSTRING2(x) #x 501 #define _LIBCPP_TOSTRING(x) _LIBCPP_TOSTRING2(x) 502 #define _LIBCPP_WARNING(x) __pragma(message(__FILE__ "(" _LIBCPP_TOSTRING(__LINE__) ") : warning note: " x)) 503 504 #if _MSC_VER < 1900 505 #error "MSVC versions prior to Visual Studio 2015 are not supported" 506 #endif 507 508 #define _LIBCPP_HAS_IS_BASE_OF 509 #define _LIBCPP_HAS_NO_CONSTEXPR 510 #define _LIBCPP_HAS_NO_CXX14_CONSTEXPR 511 #define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 512 #if _MSC_VER <= 1800 513 #define _LIBCPP_HAS_NO_UNICODE_CHARS 514 #endif 515 #define _LIBCPP_HAS_NO_NOEXCEPT 516 #define __alignof__ __alignof 517 #define _LIBCPP_NORETURN __declspec(noreturn) 518 #define _ALIGNAS(x) __declspec(align(x)) 519 #define _LIBCPP_HAS_NO_VARIADICS 520 521 #define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { 522 #define _LIBCPP_END_NAMESPACE_STD } 523 #define _VSTD std 524 525 # define _LIBCPP_WEAK 526 namespace std { 527 } 528 529 #define _LIBCPP_HAS_NO_ASAN 530 531 #elif defined(_LIBCPP_COMPILER_IBM) 532 533 #define _ALIGNAS(x) __attribute__((__aligned__(x))) 534 #define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x)))) 535 #define _ATTRIBUTE(x) __attribute__((x)) 536 #define _LIBCPP_NORETURN __attribute__((noreturn)) 537 538 #define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 539 #define _LIBCPP_HAS_NO_NOEXCEPT 540 #define _LIBCPP_HAS_NO_NULLPTR 541 #define _LIBCPP_HAS_NO_UNICODE_CHARS 542 #define _LIBCPP_HAS_IS_BASE_OF 543 #define _LIBCPP_HAS_IS_FINAL 544 #define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES 545 546 #if defined(_AIX) 547 #define __MULTILOCALE_API 548 #endif 549 550 #define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE { 551 #define _LIBCPP_END_NAMESPACE_STD } } 552 #define _VSTD std::_LIBCPP_NAMESPACE 553 554 namespace std { 555 inline namespace _LIBCPP_NAMESPACE { 556 } 557 } 558 559 #define _LIBCPP_HAS_NO_ASAN 560 561 #endif // _LIBCPP_COMPILER_[CLANG|GCC|MSVC|IBM] 562 563 #if defined(__ELF__) 564 #define _LIBCPP_OBJECT_FORMAT_ELF 1 565 #elif defined(__MACH__) 566 #define _LIBCPP_OBJECT_FORMAT_MACHO 1 567 #else 568 #define _LIBCPP_OBJECT_FORMAT_COFF 1 569 #endif 570 571 #if defined(_LIBCPP_OBJECT_FORMAT_COFF) 572 #if defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 573 # define _LIBCPP_DLL_VIS 574 # define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 575 # define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 576 # define _LIBCPP_OVERRIDABLE_FUNC_VIS 577 #elif defined(_LIBCPP_BUILDING_LIBRARY) 578 # define _LIBCPP_DLL_VIS __declspec(dllexport) 579 # define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 580 # define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS _LIBCPP_DLL_VIS 581 # define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_DLL_VIS 582 #else 583 # define _LIBCPP_DLL_VIS __declspec(dllimport) 584 # define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS _LIBCPP_DLL_VIS 585 # define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 586 # define _LIBCPP_OVERRIDABLE_FUNC_VIS 587 #endif 588 589 #define _LIBCPP_TYPE_VIS _LIBCPP_DLL_VIS 590 #define _LIBCPP_FUNC_VIS _LIBCPP_DLL_VIS 591 #define _LIBCPP_EXTERN_VIS _LIBCPP_DLL_VIS 592 #define _LIBCPP_EXCEPTION_ABI _LIBCPP_DLL_VIS 593 #define _LIBCPP_HIDDEN 594 #define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 595 #define _LIBCPP_TEMPLATE_VIS 596 #define _LIBCPP_FUNC_VIS_ONLY 597 #define _LIBCPP_ENUM_VIS 598 599 #if defined(_LIBCPP_COMPILER_MSVC) 600 # define _LIBCPP_INLINE_VISIBILITY __forceinline 601 # define _LIBCPP_ALWAYS_INLINE __forceinline 602 # define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __forceinline 603 #else 604 # define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__always_inline__)) 605 # define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__)) 606 # define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__ ((__always_inline__)) 607 #endif 608 #endif // defined(_LIBCPP_OBJECT_FORMAT_COFF) 609 610 #ifndef _LIBCPP_HIDDEN 611 #if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 612 #define _LIBCPP_HIDDEN __attribute__ ((__visibility__("hidden"))) 613 #else 614 #define _LIBCPP_HIDDEN 615 #endif 616 #endif 617 618 #ifndef _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 619 #if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 620 // The inline should be removed once PR32114 is resolved 621 #define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS inline _LIBCPP_HIDDEN 622 #else 623 #define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS 624 #endif 625 #endif 626 627 #ifndef _LIBCPP_FUNC_VIS 628 #if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 629 #define _LIBCPP_FUNC_VIS __attribute__ ((__visibility__("default"))) 630 #else 631 #define _LIBCPP_FUNC_VIS 632 #endif 633 #endif 634 635 #ifndef _LIBCPP_TYPE_VIS 636 # if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 637 # define _LIBCPP_TYPE_VIS __attribute__ ((__visibility__("default"))) 638 # else 639 # define _LIBCPP_TYPE_VIS 640 # endif 641 #endif 642 643 #ifndef _LIBCPP_TEMPLATE_VIS 644 # if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 645 # if __has_attribute(__type_visibility__) 646 # define _LIBCPP_TEMPLATE_VIS __attribute__ ((__type_visibility__("default"))) 647 # else 648 # define _LIBCPP_TEMPLATE_VIS __attribute__ ((__visibility__("default"))) 649 # endif 650 # else 651 # define _LIBCPP_TEMPLATE_VIS 652 # endif 653 #endif 654 655 #ifndef _LIBCPP_FUNC_VIS_ONLY 656 # define _LIBCPP_FUNC_VIS_ONLY _LIBCPP_FUNC_VIS 657 #endif 658 659 #ifndef _LIBCPP_EXTERN_VIS 660 # define _LIBCPP_EXTERN_VIS 661 #endif 662 663 #ifndef _LIBCPP_OVERRIDABLE_FUNC_VIS 664 # define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_FUNC_VIS 665 #endif 666 667 #ifndef _LIBCPP_EXCEPTION_ABI 668 #if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 669 #define _LIBCPP_EXCEPTION_ABI __attribute__ ((__visibility__("default"))) 670 #else 671 #define _LIBCPP_EXCEPTION_ABI 672 #endif 673 #endif 674 675 #ifndef _LIBCPP_ENUM_VIS 676 # if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__) 677 # define _LIBCPP_ENUM_VIS __attribute__ ((__type_visibility__("default"))) 678 # else 679 # define _LIBCPP_ENUM_VIS 680 # endif 681 #endif 682 683 #ifndef _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 684 # if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__) 685 # define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS __attribute__ ((__visibility__("default"))) 686 # else 687 # define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS 688 # endif 689 #endif 690 691 #ifndef _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 692 # define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS 693 #endif 694 695 #ifndef _LIBCPP_INLINE_VISIBILITY 696 #if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 697 #define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__visibility__("hidden"), __always_inline__)) 698 #else 699 #define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__always_inline__)) 700 #endif 701 #endif 702 703 #ifndef _LIBCPP_ALWAYS_INLINE 704 #if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 705 #define _LIBCPP_ALWAYS_INLINE __attribute__ ((__visibility__("hidden"), __always_inline__)) 706 #else 707 #define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__)) 708 #endif 709 #endif 710 711 #ifndef _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY 712 # if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) 713 # define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__((__visibility__("default"), __always_inline__)) 714 # else 715 # define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__((__always_inline__)) 716 # endif 717 #endif 718 719 #ifndef _LIBCPP_PREFERRED_OVERLOAD 720 # if __has_attribute(__enable_if__) 721 # define _LIBCPP_PREFERRED_OVERLOAD __attribute__ ((__enable_if__(true, ""))) 722 # endif 723 #endif 724 725 #ifndef _LIBCPP_HAS_NO_NOEXCEPT 726 # define _NOEXCEPT noexcept 727 # define _NOEXCEPT_(x) noexcept(x) 728 #else 729 # define _NOEXCEPT throw() 730 # define _NOEXCEPT_(x) 731 #endif 732 733 #if defined(_LIBCPP_DEBUG_USE_EXCEPTIONS) 734 # if !defined(_LIBCPP_DEBUG) 735 # error cannot use _LIBCPP_DEBUG_USE_EXCEPTIONS unless _LIBCPP_DEBUG is defined 736 # endif 737 # define _NOEXCEPT_DEBUG noexcept(false) 738 # define _NOEXCEPT_DEBUG_(x) noexcept(false) 739 #else 740 # define _NOEXCEPT_DEBUG _NOEXCEPT 741 # define _NOEXCEPT_DEBUG_(x) _NOEXCEPT_(x) 742 #endif 743 744 #ifdef _LIBCPP_HAS_NO_UNICODE_CHARS 745 typedef unsigned short char16_t; 746 typedef unsigned int char32_t; 747 #endif // _LIBCPP_HAS_NO_UNICODE_CHARS 748 749 #ifndef __SIZEOF_INT128__ 750 #define _LIBCPP_HAS_NO_INT128 751 #endif 752 753 #ifdef _LIBCPP_CXX03_LANG 754 # if __has_extension(c_static_assert) 755 # define static_assert(__b, __m) _Static_assert(__b, __m) 756 # else 757 extern "C++" { 758 template <bool> struct __static_assert_test; 759 template <> struct __static_assert_test<true> {}; 760 template <unsigned> struct __static_assert_check {}; 761 } 762 #define static_assert(__b, __m) \ 763 typedef __static_assert_check<sizeof(__static_assert_test<(__b)>)> \ 764 _LIBCPP_CONCAT(__t, __LINE__) 765 # endif // __has_extension(c_static_assert) 766 #endif // _LIBCPP_CXX03_LANG 767 768 #ifdef _LIBCPP_HAS_NO_DECLTYPE 769 // GCC 4.6 provides __decltype in all standard modes. 770 #if __has_keyword(__decltype) || _LIBCPP_CLANG_VER >= 304 || _GNUC_VER >= 406 771 # define decltype(__x) __decltype(__x) 772 #else 773 # define decltype(__x) __typeof__(__x) 774 #endif 775 #endif 776 777 #ifdef _LIBCPP_HAS_NO_CONSTEXPR 778 #define _LIBCPP_CONSTEXPR 779 #else 780 #define _LIBCPP_CONSTEXPR constexpr 781 #endif 782 783 #ifdef _LIBCPP_CXX03_LANG 784 #define _LIBCPP_DEFAULT {} 785 #else 786 #define _LIBCPP_DEFAULT = default; 787 #endif 788 789 #ifdef _LIBCPP_CXX03_LANG 790 #define _LIBCPP_EQUAL_DELETE 791 #else 792 #define _LIBCPP_EQUAL_DELETE = delete 793 #endif 794 795 #ifdef __GNUC__ 796 #define _NOALIAS __attribute__((__malloc__)) 797 #else 798 #define _NOALIAS 799 #endif 800 801 #if __has_feature(cxx_explicit_conversions) || defined(__IBMCPP__) || \ 802 (!defined(_LIBCPP_CXX03_LANG) && defined(__GNUC__)) // All supported GCC versions 803 # define _LIBCPP_EXPLICIT explicit 804 #else 805 # define _LIBCPP_EXPLICIT 806 #endif 807 808 #if !__has_builtin(__builtin_operator_new) || !__has_builtin(__builtin_operator_delete) 809 # define _LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE 810 #endif 811 812 #ifdef _LIBCPP_HAS_NO_STRONG_ENUMS 813 #define _LIBCPP_DECLARE_STRONG_ENUM(x) struct _LIBCPP_TYPE_VIS x { enum __lx 814 #define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) \ 815 __lx __v_; \ 816 _LIBCPP_ALWAYS_INLINE x(__lx __v) : __v_(__v) {} \ 817 _LIBCPP_ALWAYS_INLINE explicit x(int __v) : __v_(static_cast<__lx>(__v)) {} \ 818 _LIBCPP_ALWAYS_INLINE operator int() const {return __v_;} \ 819 }; 820 #else // _LIBCPP_HAS_NO_STRONG_ENUMS 821 #define _LIBCPP_DECLARE_STRONG_ENUM(x) enum class _LIBCPP_ENUM_VIS x 822 #define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) 823 #endif // _LIBCPP_HAS_NO_STRONG_ENUMS 824 825 #ifdef _LIBCPP_DEBUG 826 # if _LIBCPP_DEBUG == 0 827 # define _LIBCPP_DEBUG_LEVEL 1 828 # elif _LIBCPP_DEBUG == 1 829 # define _LIBCPP_DEBUG_LEVEL 2 830 # else 831 # error Supported values for _LIBCPP_DEBUG are 0 and 1 832 # endif 833 # if !defined(_LIBCPP_BUILDING_LIBRARY) 834 # define _LIBCPP_EXTERN_TEMPLATE(...) 835 # endif 836 #endif 837 838 #ifndef _LIBCPP_EXTERN_TEMPLATE 839 #define _LIBCPP_EXTERN_TEMPLATE(...) 840 #endif 841 842 #ifndef _LIBCPP_EXTERN_TEMPLATE2 843 #define _LIBCPP_EXTERN_TEMPLATE2(...) extern template __VA_ARGS__; 844 #endif 845 846 #if defined(__APPLE__) && defined(__LP64__) && !defined(__x86_64__) 847 #define _LIBCPP_NONUNIQUE_RTTI_BIT (1ULL << 63) 848 #endif 849 850 #if defined(__APPLE__) || defined(__FreeBSD__) || defined(_LIBCPP_MSVCRT) || \ 851 defined(__sun__) || defined(__NetBSD__) || defined(__CloudABI__) 852 #define _LIBCPP_LOCALE__L_EXTENSIONS 1 853 #endif 854 855 #if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__)) 856 // Most unix variants have catopen. These are the specific ones that don't. 857 #if !defined(__BIONIC__) && !defined(_NEWLIB_VERSION) 858 #define _LIBCPP_HAS_CATOPEN 1 859 #endif 860 #endif 861 862 #ifdef __FreeBSD__ 863 #define _DECLARE_C99_LDBL_MATH 1 864 #endif 865 866 #if defined(__APPLE__) 867 # if !defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && \ 868 defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) 869 # define __MAC_OS_X_VERSION_MIN_REQUIRED __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ 870 # endif 871 # if defined(__MAC_OS_X_VERSION_MIN_REQUIRED) 872 # if __MAC_OS_X_VERSION_MIN_REQUIRED < 1060 873 # define _LIBCPP_HAS_NO_ALIGNED_ALLOCATION 874 # endif 875 # endif 876 #endif // defined(__APPLE__) 877 878 #if defined(__APPLE__) || defined(__FreeBSD__) 879 #define _LIBCPP_HAS_DEFAULTRUNELOCALE 880 #endif 881 882 #if defined(__APPLE__) || defined(__FreeBSD__) || defined(__sun__) 883 #define _LIBCPP_WCTYPE_IS_MASK 884 #endif 885 886 #ifndef _LIBCPP_STD_VER 887 # if __cplusplus <= 201103L 888 # define _LIBCPP_STD_VER 11 889 # elif __cplusplus <= 201402L 890 # define _LIBCPP_STD_VER 14 891 # else 892 # define _LIBCPP_STD_VER 16 // current year, or date of c++17 ratification 893 # endif 894 #endif // _LIBCPP_STD_VER 895 896 #if _LIBCPP_STD_VER > 11 897 #define _LIBCPP_DEPRECATED [[deprecated]] 898 #else 899 #define _LIBCPP_DEPRECATED 900 #endif 901 902 #if _LIBCPP_STD_VER <= 11 903 #define _LIBCPP_EXPLICIT_AFTER_CXX11 904 #define _LIBCPP_DEPRECATED_AFTER_CXX11 905 #else 906 #define _LIBCPP_EXPLICIT_AFTER_CXX11 explicit 907 #define _LIBCPP_DEPRECATED_AFTER_CXX11 [[deprecated]] 908 #endif 909 910 #if _LIBCPP_STD_VER > 11 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR) 911 #define _LIBCPP_CONSTEXPR_AFTER_CXX11 constexpr 912 #else 913 #define _LIBCPP_CONSTEXPR_AFTER_CXX11 914 #endif 915 916 #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR) 917 #define _LIBCPP_CONSTEXPR_AFTER_CXX14 constexpr 918 #else 919 #define _LIBCPP_CONSTEXPR_AFTER_CXX14 920 #endif 921 922 // FIXME: Remove all usages of this macro once compilers catch up. 923 #if !defined(__cpp_inline_variables) || (__cpp_inline_variables < 201606L) 924 # define _LIBCPP_HAS_NO_INLINE_VARIABLES 925 #endif 926 927 #ifdef _LIBCPP_HAS_NO_RVALUE_REFERENCES 928 # define _LIBCPP_EXPLICIT_MOVE(x) _VSTD::move(x) 929 #else 930 # define _LIBCPP_EXPLICIT_MOVE(x) (x) 931 #endif 932 933 #ifndef _LIBCPP_HAS_NO_ASAN 934 _LIBCPP_FUNC_VIS extern "C" void __sanitizer_annotate_contiguous_container( 935 const void *, const void *, const void *, const void *); 936 #endif 937 938 // Try to find out if RTTI is disabled. 939 // g++ and cl.exe have RTTI on by default and define a macro when it is. 940 // g++ only defines the macro in 4.3.2 and onwards. 941 #if !defined(_LIBCPP_NO_RTTI) 942 # if defined(__GNUC__) && ((__GNUC__ >= 5) || (__GNUC__ == 4 && \ 943 (__GNUC_MINOR__ >= 3 || __GNUC_PATCHLEVEL__ >= 2))) && !defined(__GXX_RTTI) 944 # define _LIBCPP_NO_RTTI 945 # elif defined(_LIBCPP_MSVC) && !defined(_CPPRTTI) 946 # define _LIBCPP_NO_RTTI 947 # endif 948 #endif 949 950 #ifndef _LIBCPP_WEAK 951 # define _LIBCPP_WEAK __attribute__((__weak__)) 952 #endif 953 954 // Thread API 955 #if !defined(_LIBCPP_HAS_NO_THREADS) && \ 956 !defined(_LIBCPP_HAS_THREAD_API_PTHREAD) && \ 957 !defined(_LIBCPP_HAS_THREAD_API_EXTERNAL) 958 # if defined(__FreeBSD__) || \ 959 defined(__Fuchsia__) || \ 960 defined(__NetBSD__) || \ 961 defined(__linux__) || \ 962 defined(__APPLE__) || \ 963 defined(__CloudABI__) || \ 964 defined(__sun__) 965 # define _LIBCPP_HAS_THREAD_API_PTHREAD 966 # elif defined(_LIBCPP_WIN32API) 967 # define _LIBCPP_HAS_THREAD_API_WIN32 968 # else 969 # error "No thread API" 970 # endif // _LIBCPP_HAS_THREAD_API 971 #endif // _LIBCPP_HAS_NO_THREADS 972 973 #if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_PTHREAD) 974 # error _LIBCPP_HAS_THREAD_API_PTHREAD may only be defined when \ 975 _LIBCPP_HAS_NO_THREADS is not defined. 976 #endif 977 978 #if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_EXTERNAL) 979 # error _LIBCPP_HAS_THREAD_API_EXTERNAL may not be defined when \ 980 _LIBCPP_HAS_NO_THREADS is defined. 981 #endif 982 983 #if defined(_LIBCPP_HAS_NO_MONOTONIC_CLOCK) && !defined(_LIBCPP_HAS_NO_THREADS) 984 # error _LIBCPP_HAS_NO_MONOTONIC_CLOCK may only be defined when \ 985 _LIBCPP_HAS_NO_THREADS is defined. 986 #endif 987 988 // Systems that use capability-based security (FreeBSD with Capsicum, 989 // Nuxi CloudABI) may only provide local filesystem access (using *at()). 990 // Functions like open(), rename(), unlink() and stat() should not be 991 // used, as they attempt to access the global filesystem namespace. 992 #ifdef __CloudABI__ 993 #define _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE 994 #endif 995 996 // CloudABI is intended for running networked services. Processes do not 997 // have standard input and output channels. 998 #ifdef __CloudABI__ 999 #define _LIBCPP_HAS_NO_STDIN 1000 #define _LIBCPP_HAS_NO_STDOUT 1001 #endif 1002 1003 #if defined(__BIONIC__) || defined(__CloudABI__) || \ 1004 defined(_LIBCPP_HAS_MUSL_LIBC) 1005 #define _LIBCPP_PROVIDES_DEFAULT_RUNE_TABLE 1006 #endif 1007 1008 // Thread-unsafe functions such as strtok() and localtime() 1009 // are not available. 1010 #ifdef __CloudABI__ 1011 #define _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS 1012 #endif 1013 1014 #if __has_feature(cxx_atomic) || __has_extension(c_atomic) || __has_keyword(_Atomic) 1015 #define _LIBCPP_HAS_C_ATOMIC_IMP 1016 #elif _GNUC_VER > 407 1017 #define _LIBCPP_HAS_GCC_ATOMIC_IMP 1018 #endif 1019 1020 #if (!defined(_LIBCPP_HAS_C_ATOMIC_IMP) && !defined(_LIBCPP_HAS_GCC_ATOMIC_IMP)) \ 1021 || defined(_LIBCPP_HAS_NO_THREADS) 1022 #define _LIBCPP_HAS_NO_ATOMIC_HEADER 1023 #endif 1024 1025 #ifndef _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK 1026 #define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK 1027 #endif 1028 1029 #if defined(_LIBCPP_ENABLE_THREAD_SAFETY_ANNOTATIONS) 1030 #if defined(__clang__) && __has_attribute(acquire_capability) 1031 // Work around the attribute handling in clang. When both __declspec and 1032 // __attribute__ are present, the processing goes awry preventing the definition 1033 // of the types. 1034 #if !defined(_LIBCPP_OBJECT_FORMAT_COFF) 1035 #define _LIBCPP_HAS_THREAD_SAFETY_ANNOTATIONS 1036 #endif 1037 #endif 1038 #endif 1039 1040 #if __has_attribute(require_constant_initialization) 1041 #define _LIBCPP_SAFE_STATIC __attribute__((__require_constant_initialization__)) 1042 #else 1043 #define _LIBCPP_SAFE_STATIC 1044 #endif 1045 1046 #if !__has_builtin(__builtin_addressof) && _GNUC_VER < 700 1047 #define _LIBCPP_HAS_NO_BUILTIN_ADDRESSOF 1048 #endif 1049 1050 #if !defined(_LIBCPP_HAS_NO_OFF_T_FUNCTIONS) 1051 #if defined(_LIBCPP_MSVCRT) || defined(_NEWLIB_VERSION) 1052 #define _LIBCPP_HAS_NO_OFF_T_FUNCTIONS 1053 #endif 1054 #endif 1055 1056 #if __has_attribute(diagnose_if) && !defined(_LIBCPP_DISABLE_ADDITIONAL_DIAGNOSTICS) 1057 # define _LIBCPP_DIAGNOSE_WARNING(...) \ 1058 __attribute__((diagnose_if(__VA_ARGS__, "warning"))) 1059 # define _LIBCPP_DIAGNOSE_ERROR(...) \ 1060 __attribute__((diagnose_if(__VA_ARGS__, "error"))) 1061 #else 1062 # define _LIBCPP_DIAGNOSE_WARNING(...) 1063 # define _LIBCPP_DIAGNOSE_ERROR(...) 1064 #endif 1065 1066 #if defined(_LIBCPP_ABI_MICROSOFT) && \ 1067 (defined(_LIBCPP_COMPILER_MSVC) || __has_declspec_attribute(empty_bases)) 1068 # define _LIBCPP_DECLSPEC_EMPTY_BASES __declspec(empty_bases) 1069 #else 1070 # define _LIBCPP_DECLSPEC_EMPTY_BASES 1071 #endif 1072 1073 #if defined(_LIBCPP_ENABLE_CXX17_REMOVED_FEATURES) 1074 # define _LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR 1075 # define _LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS 1076 #endif // _LIBCPP_ENABLE_CXX17_REMOVED_FEATURES 1077 1078 #endif // __cplusplus 1079 1080 #endif // _LIBCPP_CONFIG 1081
