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 #pragma GCC system_header 16 #endif 17 18 #ifdef __GNUC__ 19 #define _GNUC_VER (__GNUC__ * 100 + __GNUC_MINOR__) 20 #endif 21 22 #define _LIBCPP_VERSION 1101 23 24 #define _LIBCPP_ABI_VERSION 1 25 26 #define _LIBCPP_CONCAT1(_LIBCPP_X,_LIBCPP_Y) _LIBCPP_X##_LIBCPP_Y 27 #define _LIBCPP_CONCAT(_LIBCPP_X,_LIBCPP_Y) _LIBCPP_CONCAT1(_LIBCPP_X,_LIBCPP_Y) 28 29 #define _LIBCPP_NAMESPACE _LIBCPP_CONCAT(__,_LIBCPP_ABI_VERSION) 30 31 #ifdef __LITTLE_ENDIAN__ 32 #if __LITTLE_ENDIAN__ 33 #define _LIBCPP_LITTLE_ENDIAN 1 34 #define _LIBCPP_BIG_ENDIAN 0 35 #endif // __LITTLE_ENDIAN__ 36 #endif // __LITTLE_ENDIAN__ 37 38 #ifdef __BIG_ENDIAN__ 39 #if __BIG_ENDIAN__ 40 #define _LIBCPP_LITTLE_ENDIAN 0 41 #define _LIBCPP_BIG_ENDIAN 1 42 #endif // __BIG_ENDIAN__ 43 #endif // __BIG_ENDIAN__ 44 45 #ifdef __FreeBSD__ 46 # include <sys/endian.h> 47 # if _BYTE_ORDER == _LITTLE_ENDIAN 48 # define _LIBCPP_LITTLE_ENDIAN 1 49 # define _LIBCPP_BIG_ENDIAN 0 50 # else // _BYTE_ORDER == _LITTLE_ENDIAN 51 # define _LIBCPP_LITTLE_ENDIAN 0 52 # define _LIBCPP_BIG_ENDIAN 1 53 # endif // _BYTE_ORDER == _LITTLE_ENDIAN 54 # ifndef __LONG_LONG_SUPPORTED 55 # define _LIBCPP_HAS_NO_LONG_LONG 56 # endif // __LONG_LONG_SUPPORTED 57 #endif // __FreeBSD__ 58 59 #ifdef __NetBSD__ 60 # include <sys/endian.h> 61 # if _BYTE_ORDER == _LITTLE_ENDIAN 62 # define _LIBCPP_LITTLE_ENDIAN 1 63 # define _LIBCPP_BIG_ENDIAN 0 64 # else // _BYTE_ORDER == _LITTLE_ENDIAN 65 # define _LIBCPP_LITTLE_ENDIAN 0 66 # define _LIBCPP_BIG_ENDIAN 1 67 # endif // _BYTE_ORDER == _LITTLE_ENDIAN 68 # define _LIBCPP_HAS_QUICK_EXIT 69 #endif // __NetBSD__ 70 71 #ifdef _WIN32 72 # define _LIBCPP_LITTLE_ENDIAN 1 73 # define _LIBCPP_BIG_ENDIAN 0 74 // Compiler intrinsics (GCC or MSVC) 75 # if defined(__clang__) \ 76 || (defined(_MSC_VER) && _MSC_VER >= 1400) \ 77 || (defined(__GNUC__) && _GNUC_VER > 403) 78 # define _LIBCPP_HAS_IS_BASE_OF 79 # endif 80 # if defined(_MSC_VER) && !defined(__clang__) 81 # define _LIBCPP_MSVC // Using Microsoft Visual C++ compiler 82 # define _LIBCPP_TOSTRING2(x) #x 83 # define _LIBCPP_TOSTRING(x) _LIBCPP_TOSTRING2(x) 84 # define _LIBCPP_WARNING(x) __pragma(message(__FILE__ "(" _LIBCPP_TOSTRING(__LINE__) ") : warning note: " x)) 85 # endif 86 # // If mingw not explicitly detected, assume using MS C runtime only. 87 # ifndef __MINGW32__ 88 # define _LIBCPP_MSVCRT // Using Microsoft's C Runtime library 89 # endif 90 #endif // _WIN32 91 92 #ifdef __linux__ 93 # if defined(__GNUC__) && _GNUC_VER >= 403 94 # define _LIBCPP_HAS_IS_BASE_OF 95 # endif 96 #endif 97 98 #ifdef __sun__ 99 # include <sys/isa_defs.h> 100 # ifdef _LITTLE_ENDIAN 101 # define _LIBCPP_LITTLE_ENDIAN 1 102 # define _LIBCPP_BIG_ENDIAN 0 103 # else 104 # define _LIBCPP_LITTLE_ENDIAN 0 105 # define _LIBCPP_BIG_ENDIAN 1 106 # endif 107 #endif // __sun__ 108 109 #if !defined(_LIBCPP_LITTLE_ENDIAN) || !defined(_LIBCPP_BIG_ENDIAN) 110 # include <endian.h> 111 # if __BYTE_ORDER == __LITTLE_ENDIAN 112 # define _LIBCPP_LITTLE_ENDIAN 1 113 # define _LIBCPP_BIG_ENDIAN 0 114 # elif __BYTE_ORDER == __BIG_ENDIAN 115 # define _LIBCPP_LITTLE_ENDIAN 0 116 # define _LIBCPP_BIG_ENDIAN 1 117 # else // __BYTE_ORDER == __BIG_ENDIAN 118 # error unable to determine endian 119 # endif 120 #endif // !defined(_LIBCPP_LITTLE_ENDIAN) || !defined(_LIBCPP_BIG_ENDIAN) 121 122 #ifdef _WIN32 123 124 // only really useful for a DLL 125 #ifdef _LIBCPP_DLL // this should be a compiler builtin define ideally... 126 # ifdef cxx_EXPORTS 127 # define _LIBCPP_HIDDEN 128 # define _LIBCPP_FUNC_VIS __declspec(dllexport) 129 # define _LIBCPP_TYPE_VIS __declspec(dllexport) 130 # else 131 # define _LIBCPP_HIDDEN 132 # define _LIBCPP_FUNC_VIS __declspec(dllimport) 133 # define _LIBCPP_TYPE_VIS __declspec(dllimport) 134 # endif 135 #else 136 # define _LIBCPP_HIDDEN 137 # define _LIBCPP_FUNC_VIS 138 # define _LIBCPP_TYPE_VIS 139 #endif 140 141 #define _LIBCPP_TYPE_VIS_ONLY 142 #define _LIBCPP_FUNC_VIS_ONLY 143 144 #ifndef _LIBCPP_INLINE_VISIBILITY 145 # ifdef _LIBCPP_MSVC 146 # define _LIBCPP_INLINE_VISIBILITY __forceinline 147 # else // MinGW GCC and Clang 148 # define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__always_inline__)) 149 # endif 150 #endif 151 152 #ifndef _LIBCPP_EXCEPTION_ABI 153 #define _LIBCPP_EXCEPTION_ABI _LIBCPP_TYPE_VIS 154 #endif 155 156 #ifndef _LIBCPP_ALWAYS_INLINE 157 # ifdef _LIBCPP_MSVC 158 # define _LIBCPP_ALWAYS_INLINE __forceinline 159 # endif 160 #endif 161 162 #endif // _WIN32 163 164 #ifndef __has_attribute 165 #define __has_attribute(__x) 0 166 #endif 167 168 #ifndef _LIBCPP_HIDDEN 169 #define _LIBCPP_HIDDEN __attribute__ ((__visibility__("hidden"))) 170 #endif 171 172 #ifndef _LIBCPP_FUNC_VIS 173 #define _LIBCPP_FUNC_VIS __attribute__ ((__visibility__("default"))) 174 #endif 175 176 #ifndef _LIBCPP_TYPE_VIS 177 # if __has_attribute(__type_visibility__) 178 # define _LIBCPP_TYPE_VIS __attribute__ ((__type_visibility__("default"))) 179 # else 180 # define _LIBCPP_TYPE_VIS __attribute__ ((__visibility__("default"))) 181 # endif 182 #endif 183 184 #ifndef _LIBCPP_TYPE_VIS_ONLY 185 # define _LIBCPP_TYPE_VIS_ONLY _LIBCPP_TYPE_VIS 186 #endif 187 188 #ifndef _LIBCPP_FUNC_VIS_ONLY 189 # define _LIBCPP_FUNC_VIS_ONLY _LIBCPP_FUNC_VIS 190 #endif 191 192 #ifndef _LIBCPP_INLINE_VISIBILITY 193 #define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__visibility__("hidden"), __always_inline__)) 194 #define _LIBCPP_INLINE_VISIBILITY_EXCEPT_GCC49 _LIBCPP_INLINE_VISIBILITY 195 #endif 196 197 #ifndef _LIBCPP_EXCEPTION_ABI 198 #define _LIBCPP_EXCEPTION_ABI __attribute__ ((__visibility__("default"))) 199 #endif 200 201 #ifndef _LIBCPP_ALWAYS_INLINE 202 #define _LIBCPP_ALWAYS_INLINE __attribute__ ((__visibility__("hidden"), __always_inline__)) 203 #define _LIBCPP_ALWAYS_INLINE_EXCEPT_GCC49 _LIBCPP_ALWAYS_INLINE 204 #endif 205 206 #if defined(__clang__) 207 208 #if defined(__APPLE__) && !defined(__i386__) && !defined(__x86_64__) && \ 209 !defined(__arm__) 210 #define _LIBCPP_ALTERNATE_STRING_LAYOUT 211 #endif 212 213 #if __has_feature(cxx_alignas) 214 # define _ALIGNAS_TYPE(x) alignas(x) 215 # define _ALIGNAS(x) alignas(x) 216 #else 217 # define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x)))) 218 # define _ALIGNAS(x) __attribute__((__aligned__(x))) 219 #endif 220 221 #if !__has_feature(cxx_alias_templates) 222 #define _LIBCPP_HAS_NO_TEMPLATE_ALIASES 223 #endif 224 225 #if __cplusplus < 201103L 226 #ifdef __linux__ 227 #define _LIBCPP_HAS_NO_UNICODE_CHARS 228 #else 229 typedef __char16_t char16_t; 230 typedef __char32_t char32_t; 231 #endif 232 #endif 233 234 #if !(__has_feature(cxx_exceptions)) 235 #define _LIBCPP_NO_EXCEPTIONS 236 #endif 237 238 #if !(__has_feature(cxx_rtti)) 239 #define _LIBCPP_NO_RTTI 240 #endif 241 242 #if !(__has_feature(cxx_strong_enums)) 243 #define _LIBCPP_HAS_NO_STRONG_ENUMS 244 #endif 245 246 #if !(__has_feature(cxx_decltype)) 247 #define _LIBCPP_HAS_NO_DECLTYPE 248 #endif 249 250 #if __has_feature(cxx_attributes) 251 # define _LIBCPP_NORETURN [[noreturn]] 252 #else 253 # define _LIBCPP_NORETURN __attribute__ ((noreturn)) 254 #endif 255 256 #if !(__has_feature(cxx_defaulted_functions)) 257 #define _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS 258 #endif // !(__has_feature(cxx_defaulted_functions)) 259 260 #if !(__has_feature(cxx_deleted_functions)) 261 #define _LIBCPP_HAS_NO_DELETED_FUNCTIONS 262 #endif // !(__has_feature(cxx_deleted_functions)) 263 264 #if !(__has_feature(cxx_lambdas)) 265 #define _LIBCPP_HAS_NO_LAMBDAS 266 #endif 267 268 #if !(__has_feature(cxx_nullptr)) 269 #define _LIBCPP_HAS_NO_NULLPTR 270 #endif 271 272 #if !(__has_feature(cxx_rvalue_references)) 273 #define _LIBCPP_HAS_NO_RVALUE_REFERENCES 274 #endif 275 276 #if !(__has_feature(cxx_static_assert)) 277 #define _LIBCPP_HAS_NO_STATIC_ASSERT 278 #endif 279 280 #if !(__has_feature(cxx_auto_type)) 281 #define _LIBCPP_HAS_NO_AUTO_TYPE 282 #endif 283 284 #if !(__has_feature(cxx_access_control_sfinae)) || !__has_feature(cxx_trailing_return) 285 #define _LIBCPP_HAS_NO_ADVANCED_SFINAE 286 #endif 287 288 #if !(__has_feature(cxx_variadic_templates)) 289 #define _LIBCPP_HAS_NO_VARIADICS 290 #endif 291 292 #if !(__has_feature(cxx_trailing_return)) 293 #define _LIBCPP_HAS_NO_TRAILING_RETURN 294 #endif 295 296 #if !(__has_feature(cxx_generalized_initializers)) 297 #define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 298 #endif 299 300 #if __has_feature(is_base_of) 301 # define _LIBCPP_HAS_IS_BASE_OF 302 #endif 303 304 // Objective-C++ features (opt-in) 305 #if __has_feature(objc_arc) 306 #define _LIBCPP_HAS_OBJC_ARC 307 #endif 308 309 #if __has_feature(objc_arc_weak) 310 #define _LIBCPP_HAS_OBJC_ARC_WEAK 311 #define _LIBCPP_HAS_NO_STRONG_ENUMS 312 #endif 313 314 #if !(__has_feature(cxx_constexpr)) 315 #define _LIBCPP_HAS_NO_CONSTEXPR 316 #endif 317 318 #if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L 319 #if defined(__FreeBSD__) 320 #define _LIBCPP_HAS_QUICK_EXIT 321 #define _LIBCPP_HAS_C11_FEATURES 322 #elif defined(__linux__) && defined(__GLIBC__) 323 #include <features.h> 324 #if __GLIBC_PREREQ(2, 15) 325 #define _LIBCPP_HAS_QUICK_EXIT 326 #endif 327 #if __GLIBC_PREREQ(2, 17) 328 #define _LIBCPP_HAS_C11_FEATURES 329 #endif 330 #endif 331 #endif 332 333 #if (__has_feature(cxx_noexcept)) 334 # define _NOEXCEPT noexcept 335 # define _NOEXCEPT_(x) noexcept(x) 336 # define _NOEXCEPT_OR_FALSE(x) noexcept(x) 337 #else 338 # define _NOEXCEPT throw() 339 # define _NOEXCEPT_(x) 340 # define _NOEXCEPT_OR_FALSE(x) false 341 #endif 342 343 #if __has_feature(underlying_type) 344 # define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T) 345 #endif 346 347 #if __has_feature(is_literal) 348 # define _LIBCPP_IS_LITERAL(T) __is_literal(T) 349 #endif 350 351 // Inline namespaces are available in Clang regardless of C++ dialect. 352 #define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE { 353 #define _LIBCPP_END_NAMESPACE_STD } } 354 #define _VSTD std::_LIBCPP_NAMESPACE 355 356 namespace std { 357 inline namespace _LIBCPP_NAMESPACE { 358 } 359 } 360 361 #if !defined(_LIBCPP_HAS_NO_ASAN) && !__has_feature(address_sanitizer) 362 #define _LIBCPP_HAS_NO_ASAN 363 #endif 364 365 #elif defined(__GNUC__) 366 367 // FixME: GCC4.9 fails some always_inline cases 368 # if (_GNUC_VER == 409) 369 #undef _LIBCPP_ALWAYS_INLINE_EXCEPT_GCC49 370 #define _LIBCPP_ALWAYS_INLINE_EXCEPT_GCC49 inline 371 #undef _LIBCPP_INLINE_VISIBILITY_EXCEPT_GCC49 372 #define _LIBCPP_INLINE_VISIBILITY_EXCEPT_GCC49 373 #endif 374 375 #define _ALIGNAS(x) __attribute__((__aligned__(x))) 376 #define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x)))) 377 378 #define _LIBCPP_NORETURN __attribute__((noreturn)) 379 380 #if _GNUC_VER >= 407 381 #define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T) 382 #define _LIBCPP_IS_LITERAL(T) __is_literal_type(T) 383 #endif 384 385 #if !__EXCEPTIONS 386 #define _LIBCPP_NO_EXCEPTIONS 387 #endif 388 389 #define _LIBCPP_HAS_NO_TEMPLATE_ALIASES 390 391 // constexpr was added to GCC in 4.6 392 #if _GNUC_VER < 406 393 #define _LIBCPP_HAS_NO_CONSTEXPR 394 // Can only use constexpr in c++11 mode. 395 #elif !defined(__GXX_EXPERIMENTAL_CXX0X__) && __cplusplus < 201103L 396 #define _LIBCPP_HAS_NO_CONSTEXPR 397 #endif 398 399 #define _NOEXCEPT throw() 400 #define _NOEXCEPT_(x) 401 #define _NOEXCEPT_OR_FALSE(x) false 402 403 #ifndef __GXX_EXPERIMENTAL_CXX0X__ 404 405 #define _LIBCPP_HAS_NO_ADVANCED_SFINAE 406 #define _LIBCPP_HAS_NO_DECLTYPE 407 #define _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS 408 #define _LIBCPP_HAS_NO_DELETED_FUNCTIONS 409 #define _LIBCPP_HAS_NO_NULLPTR 410 #define _LIBCPP_HAS_NO_STATIC_ASSERT 411 #define _LIBCPP_HAS_NO_UNICODE_CHARS 412 #define _LIBCPP_HAS_NO_VARIADICS 413 #define _LIBCPP_HAS_NO_RVALUE_REFERENCES 414 #define _LIBCPP_HAS_NO_ALWAYS_INLINE_VARIADICS 415 #define _LIBCPP_HAS_NO_STRONG_ENUMS 416 417 #else // __GXX_EXPERIMENTAL_CXX0X__ 418 419 #define _LIBCPP_HAS_NO_TRAILING_RETURN 420 #define _LIBCPP_HAS_NO_ALWAYS_INLINE_VARIADICS 421 422 #if _GNUC_VER < 403 423 #define _LIBCPP_HAS_NO_RVALUE_REFERENCES 424 #endif 425 426 #if _GNUC_VER < 403 427 #define _LIBCPP_HAS_NO_STATIC_ASSERT 428 #endif 429 430 #if _GNUC_VER < 404 431 #define _LIBCPP_HAS_NO_DECLTYPE 432 #define _LIBCPP_HAS_NO_DELETED_FUNCTIONS 433 #define _LIBCPP_HAS_NO_UNICODE_CHARS 434 #define _LIBCPP_HAS_NO_VARIADICS 435 #define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 436 #endif // _GNUC_VER < 404 437 438 #if _GNUC_VER < 406 439 #define _LIBCPP_HAS_NO_NULLPTR 440 #endif 441 442 #if _GNUC_VER < 407 443 #define _LIBCPP_HAS_NO_ADVANCED_SFINAE 444 #define _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS 445 #endif 446 447 #endif // __GXX_EXPERIMENTAL_CXX0X__ 448 449 #define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { namespace _LIBCPP_NAMESPACE { 450 #define _LIBCPP_END_NAMESPACE_STD } } 451 #define _VSTD std::_LIBCPP_NAMESPACE 452 453 namespace std { 454 namespace _LIBCPP_NAMESPACE { 455 } 456 using namespace _LIBCPP_NAMESPACE __attribute__((__strong__)); 457 } 458 459 #if !defined(_LIBCPP_HAS_NO_ASAN) && !defined(__SANITIZE_ADDRESS__) 460 #define _LIBCPP_HAS_NO_ASAN 461 #endif 462 463 // Emulation of clang's __has_feature() for GCC on known cases 464 #undef __has_feature 465 #define __has_feature(__x) __gxx__ ## __x 466 467 #define __gxx__cxx_access_control_sfinae !defined(_LIBCPP_HAS_NO_TRAILING_RETURN) || !defined(_LIBCPP_HAS_NO_ADVANCED_SFINAE) // Also see usage in 7 tests 468 #define __gxx__cxx_alias_templates !defined(_LIBCPP_HAS_NO_TEMPLATE_ALIASES) 469 #define __gxx__cxx_address_sanitizer !defined(_LIBCPP_HAS_NO_ASAN) 470 #define __gxx__cxx_alignas 0 // Not sure, doesn't matter. 471 #define __gxx__cxx_atomic (_GNUC_VER >= 407) 472 #define __gxx__cxx_attributes 0 // Not sure. Also see usage in libcxx/test/utilities/meta/meta.unary/meta.unary.prop/is_polymorphic.pass.cpp 473 #define __gxx__cxx_auto_type !defined(_LIBCPP_HAS_NO_AUTO_TYPE) 474 #define __gxx__cxx_constexpr !defined(_LIBCPP_HAS_NO_CONSTEXPR) 475 #define __gxx__cxx_decltype !defined(_LIBCPP_HAS_NO_DECLTYPE) 476 #define __gxx__cxx_defaulted_functions !defined(_LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS) // libcxx/test/utilities/meta/meta.unary/meta.unary.prop/is_trivially_move_constructible.pass.cpp 477 #define __gxx__cxx_deleted_functions !defined(_LIBCPP_HAS_NO_DELETED_FUNCTIONS) 478 #define __gxx__cxx_exceptions !defined(_LIBCPP_NO_EXCEPTIONS) 479 #define __gxx__cxx_explicit_conversions (_GNUC_VER >= 405) 480 #define __gxx__cxx_generalized_initializers !defined(_LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS) 481 #define __gxx__cxx_lambdas !defined(_LIBCPP_HAS_NO_LAMBDAS) 482 #define __gxx__cxx_noexcept 0 // Not sure, doesn't matter. 483 #define __gxx__cxx_nullptr !defined(_LIBCPP_HAS_NO_NULLPTR) 484 #define __gxx__cxx_reference_qualified_functions (_GNUC_VER >= 408) // Since 4.8.1 485 #ifdef _LIBCPP_NO_RTTI 486 #define __gxx__cxx_rtti 0 487 #else 488 #define __gxx__cxx_rtti __GXX_RTTI 489 #endif 490 #define __gxx__cxx_rvalue_references !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) 491 #define __gxx__cxx_static_assert !defined(_LIBCPP_HAS_NO_STATIC_ASSERT) 492 #define __gxx__cxx_strong_enums !defined(_LIBCPP_HAS_NO_STRONG_ENUMS) // See usage in libcxx/test/utilities/meta/meta.trans/meta.trans.other/underlying_type.pass.cpp 493 #define __gxx__cxx_trailing_return !defined(_LIBCPP_HAS_NO_TRAILING_RETURN) 494 #define __gxx__cxx_unrestricted_unions 1 // Not sure. Also See usage in libcxx/test/utilities/meta/meta.unary/meta.unary.prop/is_nothrow_destructible.pass.cpp 495 #define __gxx__cxx_variadic_templates !defined(_LIBCPP_HAS_NO_VARIADICS) 496 #define __gxx__has_nothrow_assign (_GNUC_VER >= 403) // See usage in libcxx/include/type_traits 497 #define __gxx__has_nothrow_constructor (_GNUC_VER >= 403) // See usage in libcxx/include/type_traits 498 #define __gxx__has_nothrow_copy (_GNUC_VER >= 403) // See usage in libcxx/include/type_traits 499 #define __gxx__has_trivial_constructor (_GNUC_VER >= 403) // See usage in libcxx/include/type_traits 500 #define __gxx__has_trivial_destructor (_GNUC_VER >= 403) // See usage in libcxx/include/type_traits 501 #define __gxx__has_virtual_destructor (_GNUC_VER >= 403) // See usage in libcxx/include/type_traits 502 #define __gxx__is_base_of !defined(_LIBCPP_HAS_IS_BASE_OF) // See usage in libcxx/include/type_traits 503 #define __gxx__is_class (_GNUC_VER >= 403) // See usage in libcxx/include/type_traits 504 #define __gxx__is_convertible_to 0 // Not supported in GCC 4.8. Also see usage in libcxx/include/type_traits 505 #define __gxx__is_empty 1 // Not sure. Also see usage in libcxx/include/type_traits 506 #define __gxx__is_enum (_GNUC_VER >= 403) // See usage in libcxx/include/type_traits 507 #define __gxx__is_final (_GNUC_VER >= 408) // Not if 4.7 work. 4.6 certainly not. Also see usage in libcxx/include/unordered_map,tuple,ext/hash_map,map,memory 508 #define __gxx__is_literal defined(_LIBCPP_IS_LITERAL) 509 #define __gxx__is_pod (_GNUC_VER >= 403) // See usage in libcxx/include/type_traits 510 #define __gxx__is_polymorphic 1 // Not sure. Also see usage in libcxx/include/type_traits 511 #define __gxx__is_standard_layout 1 // Not sure. Also see usage in libcxx/include/type_traits 512 #define __gxx__is_trivial 0 // Not supported in GCC 4.8. Also see usage in libcxx/include/type_traits 513 #define __gxx__is_trivially_constructible 0 // Not supported in GCC 4.8. Also see usage in libcxx/include/type_traits 514 #define __gxx__is_trivially_copyable 0 // Not supported in GCC 4.8. Also see usage in libcxx/include/type_traits 515 #define __gxx__is_union (_GNUC_VER >= 403) // See usage in libcxx/include/type_traits 516 #define __gxx__objc_arc defined(_LIBCPP_HAS_OBJC_ARC) 517 #define __gxx__objc_arc_weak defined(_LIBCPP_HAS_OBJC_ARC_WEAK) 518 #define __gxx__underlying_type defined(_LIBCPP_UNDERLYING_TYPE) 519 520 521 #elif defined(_LIBCPP_MSVC) 522 523 #define _LIBCPP_HAS_NO_TEMPLATE_ALIASES 524 #define _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER 525 #define _LIBCPP_HAS_NO_CONSTEXPR 526 #define _LIBCPP_HAS_NO_UNICODE_CHARS 527 #define _LIBCPP_HAS_NO_DELETED_FUNCTIONS 528 #define _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS 529 #define __alignof__ __alignof 530 #define _LIBCPP_NORETURN __declspec(noreturn) 531 #define _ALIGNAS(x) __declspec(align(x)) 532 #define _LIBCPP_HAS_NO_VARIADICS 533 534 #define _NOEXCEPT throw () 535 #define _NOEXCEPT_(x) 536 #define _NOEXCEPT_OR_FALSE(x) false 537 538 #define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { 539 #define _LIBCPP_END_NAMESPACE_STD } 540 #define _VSTD std 541 542 # define _LIBCPP_WEAK 543 namespace std { 544 } 545 546 #define _LIBCPP_HAS_NO_ASAN 547 548 #elif defined(__IBMCPP__) 549 550 #define _ALIGNAS(x) __attribute__((__aligned__(x))) 551 #define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x)))) 552 #define _ATTRIBUTE(x) __attribute__((x)) 553 #define _LIBCPP_NORETURN __attribute__((noreturn)) 554 555 #define _NOEXCEPT throw() 556 #define _NOEXCEPT_(x) 557 #define _NOEXCEPT_OR_FALSE(x) false 558 559 #define _LIBCPP_HAS_NO_TEMPLATE_ALIASES 560 #define _LIBCPP_HAS_NO_ADVANCED_SFINAE 561 #define _LIBCPP_HAS_NO_ALWAYS_INLINE_VARIADICS 562 #define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 563 #define _LIBCPP_HAS_NO_NULLPTR 564 #define _LIBCPP_HAS_NO_UNICODE_CHARS 565 #define _LIBCPP_HAS_IS_BASE_OF 566 567 #if defined(_AIX) 568 #define __MULTILOCALE_API 569 #endif 570 571 #define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE { 572 #define _LIBCPP_END_NAMESPACE_STD } } 573 #define _VSTD std::_LIBCPP_NAMESPACE 574 575 namespace std { 576 inline namespace _LIBCPP_NAMESPACE { 577 } 578 } 579 580 #define _LIBCPP_HAS_NO_ASAN 581 582 #endif // __clang__ || __GNUC__ || _MSC_VER || __IBMCPP__ 583 584 #ifdef _LIBCPP_HAS_NO_UNICODE_CHARS 585 typedef unsigned short char16_t; 586 typedef unsigned int char32_t; 587 #endif // _LIBCPP_HAS_NO_UNICODE_CHARS 588 589 #ifndef __SIZEOF_INT128__ 590 #define _LIBCPP_HAS_NO_INT128 591 #endif 592 593 #ifdef _LIBCPP_HAS_NO_STATIC_ASSERT 594 595 template <bool> struct __static_assert_test; 596 template <> struct __static_assert_test<true> {}; 597 template <unsigned> struct __static_assert_check {}; 598 #define static_assert(__b, __m) \ 599 typedef __static_assert_check<sizeof(__static_assert_test<(__b)>)> \ 600 _LIBCPP_CONCAT(__t, __LINE__) 601 602 #endif // _LIBCPP_HAS_NO_STATIC_ASSERT 603 604 #ifdef _LIBCPP_HAS_NO_DECLTYPE 605 #define decltype(x) __typeof__(x) 606 #endif 607 608 #ifdef _LIBCPP_HAS_NO_CONSTEXPR 609 #define _LIBCPP_CONSTEXPR 610 #else 611 #define _LIBCPP_CONSTEXPR constexpr 612 #endif 613 614 #ifdef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS 615 #define _LIBCPP_DEFAULT {} 616 #else 617 #define _LIBCPP_DEFAULT = default; 618 #endif 619 620 #ifdef __GNUC__ 621 #define _NOALIAS __attribute__((__malloc__)) 622 #else 623 #define _NOALIAS 624 #endif 625 626 #ifndef __has_feature 627 #define __has_feature(__x) 0 628 #endif 629 630 #if __has_feature(cxx_explicit_conversions) || defined(__IBMCPP__) 631 # define _LIBCPP_EXPLICIT explicit 632 #else 633 # define _LIBCPP_EXPLICIT 634 #endif 635 636 #ifdef _LIBCPP_HAS_NO_STRONG_ENUMS 637 #define _LIBCPP_DECLARE_STRONG_ENUM(x) struct _LIBCPP_TYPE_VIS x { enum __lx 638 #define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) \ 639 __lx __v_; \ 640 _LIBCPP_ALWAYS_INLINE x(__lx __v) : __v_(__v) {} \ 641 _LIBCPP_ALWAYS_INLINE explicit x(int __v) : __v_(static_cast<__lx>(__v)) {} \ 642 _LIBCPP_ALWAYS_INLINE operator int() const {return __v_;} \ 643 }; 644 #else // _LIBCPP_HAS_NO_STRONG_ENUMS 645 #define _LIBCPP_DECLARE_STRONG_ENUM(x) enum class _LIBCPP_TYPE_VIS x 646 #define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) 647 #endif // _LIBCPP_HAS_NO_STRONG_ENUMS 648 649 #ifdef _LIBCPP_DEBUG 650 # if _LIBCPP_DEBUG == 0 651 # define _LIBCPP_DEBUG_LEVEL 1 652 # elif _LIBCPP_DEBUG == 1 653 # define _LIBCPP_DEBUG_LEVEL 2 654 # else 655 # error Supported values for _LIBCPP_DEBUG are 0 and 1 656 # endif 657 # define _LIBCPP_EXTERN_TEMPLATE(...) 658 #endif 659 660 #ifndef _LIBCPP_EXTERN_TEMPLATE 661 #define _LIBCPP_EXTERN_TEMPLATE(...) 662 #endif 663 664 #ifndef _LIBCPP_EXTERN_TEMPLATE2 665 #define _LIBCPP_EXTERN_TEMPLATE2(...) extern template __VA_ARGS__; 666 #endif 667 668 #if defined(__APPLE__) && defined(__LP64__) && !defined(__x86_64__) 669 #define _LIBCPP_NONUNIQUE_RTTI_BIT (1ULL << 63) 670 #endif 671 672 #if defined(__APPLE__) || defined(__FreeBSD__) || defined(_WIN32) || defined(__sun__) || defined(__NetBSD__) 673 #define _LIBCPP_LOCALE__L_EXTENSIONS 1 674 #endif 675 676 #ifdef __FreeBSD__ 677 #define _DECLARE_C99_LDBL_MATH 1 678 #endif 679 680 #if defined(__APPLE__) || defined(__FreeBSD__) 681 #define _LIBCPP_HAS_DEFAULTRUNELOCALE 682 #endif 683 684 #if defined(__APPLE__) || defined(__FreeBSD__) || defined(__sun__) 685 #define _LIBCPP_WCTYPE_IS_MASK 686 #endif 687 688 #ifndef _LIBCPP_TRIVIAL_PAIR_COPY_CTOR 689 # define _LIBCPP_TRIVIAL_PAIR_COPY_CTOR 1 690 #endif 691 692 #ifndef _LIBCPP_STD_VER 693 # if __cplusplus <= 201103L 694 # define _LIBCPP_STD_VER 11 695 # else 696 # define _LIBCPP_STD_VER 13 // current year, or date of c++14 ratification 697 # endif 698 #endif // _LIBCPP_STD_VER 699 700 #if _LIBCPP_STD_VER > 11 701 #define _LIBCPP_DEPRECATED [[deprecated]] 702 #else 703 #define _LIBCPP_DEPRECATED 704 #endif 705 706 #if _LIBCPP_STD_VER <= 11 707 #define _LIBCPP_CONSTEXPR_AFTER_CXX11 708 #define _LIBCPP_EXPLICIT_AFTER_CXX11 709 #define _LIBCPP_DEPRECATED_AFTER_CXX11 710 #else 711 #define _LIBCPP_CONSTEXPR_AFTER_CXX11 constexpr 712 #define _LIBCPP_EXPLICIT_AFTER_CXX11 explicit 713 #define _LIBCPP_DEPRECATED_AFTER_CXX11 [[deprecated]] 714 #endif 715 716 #ifndef _LIBCPP_HAS_NO_ASAN 717 extern "C" void __sanitizer_annotate_contiguous_container( 718 const void *, const void *, const void *, const void *); 719 #endif 720 721 // Try to find out if RTTI is disabled. 722 // g++ and cl.exe have RTTI on by default and define a macro when it is. 723 // g++ only defines the macro in 4.3.2 and onwards. 724 #if !defined(_LIBCPP_NO_RTTI) 725 # if defined(__GNUG__) && (__GNUC__ >= 4 && \ 726 (__GNUC_MINOR__ >= 3 || __GNUC_PATCHLEVEL__ >= 2)) && !defined(__GXX_RTTI) 727 # define _LIBCPP_NO_RTTI 728 # elif (defined(_MSC_VER) && !defined(__clang__)) && !defined(_CPPRTTI) 729 # define _LIBCPP_NO_RTTI 730 # endif 731 #endif 732 733 #ifndef _LIBCPP_WEAK 734 # define _LIBCPP_WEAK __attribute__((__weak__)) 735 #endif 736 737 #endif // _LIBCPP_CONFIG 738
