2 //===--------------------------- __config ---------------------------------===//
4 // The LLVM Compiler Infrastructure
6 // This file is dual licensed under the MIT and the University of Illinois Open
7 // Source Licenses. See LICENSE.TXT for details.
9 //===----------------------------------------------------------------------===//
11 #ifndef _LIBCPP_CONFIG
12 #define _LIBCPP_CONFIG
14 #if defined(_MSC_VER) && !defined(__clang__)
15 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
16 #define _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER
20 #ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER
21 #pragma GCC system_header
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__)
33 #define _GNUC_VER_NEW 0
36 #define _LIBCPP_VERSION 5000
38 #ifndef _LIBCPP_ABI_VERSION
39 #define _LIBCPP_ABI_VERSION 1
43 #define _LIBCPP_OBJECT_FORMAT_ELF 1
44 #elif defined(__MACH__)
45 #define _LIBCPP_OBJECT_FORMAT_MACHO 1
47 #define _LIBCPP_OBJECT_FORMAT_COFF 1
49 #error Unknown object file format
52 #if defined(_LIBCPP_ABI_UNSTABLE) || _LIBCPP_ABI_VERSION >= 2
53 // Change short string representation so that string data starts at offset 0,
54 // improving its alignment in some cases.
55 #define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT
56 // Fix deque iterator type in order to support incomplete types.
57 #define _LIBCPP_ABI_INCOMPLETE_TYPES_IN_DEQUE
58 // Fix undefined behavior in how std::list stores it's linked nodes.
59 #define _LIBCPP_ABI_LIST_REMOVE_NODE_POINTER_UB
60 // Fix undefined behavior in how __tree stores its end and parent nodes.
61 #define _LIBCPP_ABI_TREE_REMOVE_NODE_POINTER_UB
62 // Fix undefined behavior in how __hash_table stores it's pointer types
63 #define _LIBCPP_ABI_FIX_UNORDERED_NODE_POINTER_UB
64 #define _LIBCPP_ABI_FORWARD_LIST_REMOVE_NODE_POINTER_UB
65 #define _LIBCPP_ABI_FIX_UNORDERED_CONTAINER_SIZE_TYPE
66 // Don't use a nullptr_t simulation type in C++03 instead using C++11 nullptr
67 // provided under the alternate keyword __nullptr, which changes the mangling
68 // of nullptr_t. This option is ABI incompatible with GCC in C++03 mode.
69 #define _LIBCPP_ABI_ALWAYS_USE_CXX11_NULLPTR
70 // Define the `pointer_safety` enum as a C++11 strongly typed enumeration
71 // instead of as a class simulating an enum. If this option is enabled
72 // `pointer_safety` and `get_pointer_safety()` will no longer be available
74 #define _LIBCPP_ABI_POINTER_SAFETY_ENUM_TYPE
75 // Define a key function for `bad_function_call` in the library, to centralize
76 // its vtable and typeinfo to libc++ rather than having all other libraries
77 // using that class define their own copies.
78 #define _LIBCPP_ABI_BAD_FUNCTION_CALL_KEY_FUNCTION
79 #elif _LIBCPP_ABI_VERSION == 1
80 #if !defined(_LIBCPP_OBJECT_FORMAT_COFF)
81 // Enable compiling copies of now inline methods into the dylib to support
82 // applications compiled against older libraries. This is unnecessary with
83 // COFF dllexport semantics, since dllexport forces a non-inline definition
84 // of inline functions to be emitted anyway. Our own non-inline copy would
85 // conflict with the dllexport-emitted copy, so we disable it.
86 #define _LIBCPP_DEPRECATED_ABI_LEGACY_LIBRARY_DEFINITIONS_FOR_INLINE_FUNCTIONS
88 // Feature macros for disabling pre ABI v1 features. All of these options
90 #if defined(__FreeBSD__)
91 #define _LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR
95 #ifdef _LIBCPP_TRIVIAL_PAIR_COPY_CTOR
96 #error "_LIBCPP_TRIVIAL_PAIR_COPY_CTOR" is no longer supported. \
97 use _LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR instead
100 #define _LIBCPP_CONCAT1(_LIBCPP_X,_LIBCPP_Y) _LIBCPP_X##_LIBCPP_Y
101 #define _LIBCPP_CONCAT(_LIBCPP_X,_LIBCPP_Y) _LIBCPP_CONCAT1(_LIBCPP_X,_LIBCPP_Y)
103 #define _LIBCPP_NAMESPACE _LIBCPP_CONCAT(__,_LIBCPP_ABI_VERSION)
105 #if __cplusplus < 201103L
106 #define _LIBCPP_CXX03_LANG
109 #ifndef __has_attribute
110 #define __has_attribute(__x) 0
112 #ifndef __has_builtin
113 #define __has_builtin(__x) 0
115 #ifndef __has_extension
116 #define __has_extension(__x) 0
118 #ifndef __has_feature
119 #define __has_feature(__x) 0
121 // '__is_identifier' returns '0' if '__x' is a reserved identifier provided by
122 // the compiler and '1' otherwise.
123 #ifndef __is_identifier
124 #define __is_identifier(__x) 1
126 #ifndef __has_declspec_attribute
127 #define __has_declspec_attribute(__x) 0
130 #define __has_keyword(__x) !(__is_identifier(__x))
133 #define __libcpp_has_include(__x) __has_include(__x)
135 #define __libcpp_has_include(__x) 0
138 #if defined(__clang__)
139 #define _LIBCPP_COMPILER_CLANG
140 # ifndef __apple_build_version__
141 # define _LIBCPP_CLANG_VER (__clang_major__ * 100 + __clang_minor__)
143 #elif defined(__GNUC__)
144 #define _LIBCPP_COMPILER_GCC
145 #elif defined(_MSC_VER)
146 #define _LIBCPP_COMPILER_MSVC
147 #elif defined(__IBMCPP__)
148 #define _LIBCPP_COMPILER_IBM
151 #ifndef _LIBCPP_CLANG_VER
152 #define _LIBCPP_CLANG_VER 0
155 // FIXME: ABI detection should be done via compiler builtin macros. This
156 // is just a placeholder until Clang implements such macros. For now assume
157 // that Windows compilers pretending to be MSVC++ target the microsoft ABI.
158 #if defined(_WIN32) && defined(_MSC_VER)
159 # define _LIBCPP_ABI_MICROSOFT
161 # define _LIBCPP_ABI_ITANIUM
164 // Need to detect which libc we're using if we're on Linux.
165 #if defined(__linux__)
166 #include <features.h>
167 #if !defined(__GLIBC_PREREQ)
168 #define __GLIBC_PREREQ(a, b) 0
169 #endif // !defined(__GLIBC_PREREQ)
170 #endif // defined(__linux__)
172 #ifdef __LITTLE_ENDIAN__
173 #if __LITTLE_ENDIAN__
174 #define _LIBCPP_LITTLE_ENDIAN 1
175 #define _LIBCPP_BIG_ENDIAN 0
176 #endif // __LITTLE_ENDIAN__
177 #endif // __LITTLE_ENDIAN__
179 #ifdef __BIG_ENDIAN__
181 #define _LIBCPP_LITTLE_ENDIAN 0
182 #define _LIBCPP_BIG_ENDIAN 1
183 #endif // __BIG_ENDIAN__
184 #endif // __BIG_ENDIAN__
186 #ifdef __BYTE_ORDER__
187 #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
188 #define _LIBCPP_LITTLE_ENDIAN 1
189 #define _LIBCPP_BIG_ENDIAN 0
190 #elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
191 #define _LIBCPP_LITTLE_ENDIAN 0
192 #define _LIBCPP_BIG_ENDIAN 1
193 #endif // __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
194 #endif // __BYTE_ORDER__
197 # include <sys/endian.h>
198 # if _BYTE_ORDER == _LITTLE_ENDIAN
199 # define _LIBCPP_LITTLE_ENDIAN 1
200 # define _LIBCPP_BIG_ENDIAN 0
201 # else // _BYTE_ORDER == _LITTLE_ENDIAN
202 # define _LIBCPP_LITTLE_ENDIAN 0
203 # define _LIBCPP_BIG_ENDIAN 1
204 # endif // _BYTE_ORDER == _LITTLE_ENDIAN
205 # ifndef __LONG_LONG_SUPPORTED
206 # define _LIBCPP_HAS_NO_LONG_LONG
207 # endif // __LONG_LONG_SUPPORTED
208 #endif // __FreeBSD__
211 # include <sys/endian.h>
212 # if _BYTE_ORDER == _LITTLE_ENDIAN
213 # define _LIBCPP_LITTLE_ENDIAN 1
214 # define _LIBCPP_BIG_ENDIAN 0
215 # else // _BYTE_ORDER == _LITTLE_ENDIAN
216 # define _LIBCPP_LITTLE_ENDIAN 0
217 # define _LIBCPP_BIG_ENDIAN 1
218 # endif // _BYTE_ORDER == _LITTLE_ENDIAN
219 # define _LIBCPP_HAS_QUICK_EXIT
223 # define _LIBCPP_WIN32API
224 # define _LIBCPP_LITTLE_ENDIAN 1
225 # define _LIBCPP_BIG_ENDIAN 0
226 # define _LIBCPP_SHORT_WCHAR 1
227 // Both MinGW and native MSVC provide a "MSVC"-like enviroment
228 # define _LIBCPP_MSVCRT_LIKE
229 // If mingw not explicitly detected, assume using MS C runtime only.
231 # define _LIBCPP_MSVCRT // Using Microsoft's C Runtime library
233 # if (defined(_M_AMD64) || defined(__x86_64__)) || (defined(_M_ARM) || defined(__arm__))
234 # define _LIBCPP_HAS_BITSCAN64
236 # if defined(_LIBCPP_MSVCRT)
237 # define _LIBCPP_HAS_QUICK_EXIT
240 // Some CRT APIs are unavailable to store apps
241 #if defined(WINAPI_FAMILY)
242 #include <winapifamily.h>
243 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) && \
244 (!defined(WINAPI_PARTITION_SYSTEM) || \
245 !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_SYSTEM))
246 #define _LIBCPP_WINDOWS_STORE_APP
249 #endif // defined(_WIN32)
252 # include <sys/isa_defs.h>
253 # ifdef _LITTLE_ENDIAN
254 # define _LIBCPP_LITTLE_ENDIAN 1
255 # define _LIBCPP_BIG_ENDIAN 0
257 # define _LIBCPP_LITTLE_ENDIAN 0
258 # define _LIBCPP_BIG_ENDIAN 1
262 #if defined(__CloudABI__)
263 // Certain architectures provide arc4random(). Prefer using
264 // arc4random() over /dev/{u,}random to make it possible to obtain
265 // random data even when using sandboxing mechanisms such as chroots,
267 # define _LIBCPP_USING_ARC4_RANDOM
268 #elif defined(__native_client__)
269 // NaCl's sandbox (which PNaCl also runs in) doesn't allow filesystem access,
270 // including accesses to the special files under /dev. C++11's
271 // std::random_device is instead exposed through a NaCl syscall.
272 # define _LIBCPP_USING_NACL_RANDOM
273 #elif defined(_LIBCPP_WIN32API)
274 # define _LIBCPP_USING_WIN32_RANDOM
276 # define _LIBCPP_USING_DEV_RANDOM
279 #if !defined(_LIBCPP_LITTLE_ENDIAN) || !defined(_LIBCPP_BIG_ENDIAN)
281 # if __BYTE_ORDER == __LITTLE_ENDIAN
282 # define _LIBCPP_LITTLE_ENDIAN 1
283 # define _LIBCPP_BIG_ENDIAN 0
284 # elif __BYTE_ORDER == __BIG_ENDIAN
285 # define _LIBCPP_LITTLE_ENDIAN 0
286 # define _LIBCPP_BIG_ENDIAN 1
287 # else // __BYTE_ORDER == __BIG_ENDIAN
288 # error unable to determine endian
290 #endif // !defined(_LIBCPP_LITTLE_ENDIAN) || !defined(_LIBCPP_BIG_ENDIAN)
292 #if __has_attribute(__no_sanitize__)
293 #define _LIBCPP_NO_CFI __attribute__((__no_sanitize__("cfi")))
295 #define _LIBCPP_NO_CFI
298 #if defined(_LIBCPP_COMPILER_CLANG)
300 // _LIBCPP_ALTERNATE_STRING_LAYOUT is an old name for
301 // _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT left here for backward compatibility.
302 #if (defined(__APPLE__) && !defined(__i386__) && !defined(__x86_64__) && \
303 (!defined(__arm__) || __ARM_ARCH_7K__ >= 2)) || \
304 defined(_LIBCPP_ALTERNATE_STRING_LAYOUT)
305 #define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT
308 #if __has_feature(cxx_alignas)
309 # define _ALIGNAS_TYPE(x) alignas(x)
310 # define _ALIGNAS(x) alignas(x)
312 # define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x))))
313 # define _ALIGNAS(x) __attribute__((__aligned__(x)))
316 #if __cplusplus < 201103L
317 typedef __char16_t char16_t;
318 typedef __char32_t char32_t;
321 #if !(__has_feature(cxx_exceptions)) && !defined(_LIBCPP_NO_EXCEPTIONS)
322 #define _LIBCPP_NO_EXCEPTIONS
325 #if !(__has_feature(cxx_rtti)) && !defined(_LIBCPP_NO_RTTI)
326 #define _LIBCPP_NO_RTTI
329 #if !(__has_feature(cxx_strong_enums))
330 #define _LIBCPP_HAS_NO_STRONG_ENUMS
333 #if !(__has_feature(cxx_decltype))
334 #define _LIBCPP_HAS_NO_DECLTYPE
337 #if __has_feature(cxx_attributes)
338 # define _LIBCPP_NORETURN [[noreturn]]
340 # define _LIBCPP_NORETURN __attribute__ ((noreturn))
343 #if !(__has_feature(cxx_lambdas))
344 #define _LIBCPP_HAS_NO_LAMBDAS
347 #if !(__has_feature(cxx_nullptr))
348 # if (__has_extension(cxx_nullptr) || __has_keyword(__nullptr)) && defined(_LIBCPP_ABI_ALWAYS_USE_CXX11_NULLPTR)
349 # define nullptr __nullptr
351 # define _LIBCPP_HAS_NO_NULLPTR
355 #if !(__has_feature(cxx_rvalue_references))
356 #define _LIBCPP_HAS_NO_RVALUE_REFERENCES
359 #if !(__has_feature(cxx_auto_type))
360 #define _LIBCPP_HAS_NO_AUTO_TYPE
363 #if !(__has_feature(cxx_variadic_templates))
364 #define _LIBCPP_HAS_NO_VARIADICS
367 #if !(__has_feature(cxx_generalized_initializers))
368 #define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
371 #if __has_feature(is_base_of)
372 # define _LIBCPP_HAS_IS_BASE_OF
375 #if __has_feature(is_final)
376 # define _LIBCPP_HAS_IS_FINAL
379 // Objective-C++ features (opt-in)
380 #if __has_feature(objc_arc)
381 #define _LIBCPP_HAS_OBJC_ARC
384 #if __has_feature(objc_arc_weak)
385 #define _LIBCPP_HAS_OBJC_ARC_WEAK
388 #if !(__has_feature(cxx_constexpr))
389 #define _LIBCPP_HAS_NO_CONSTEXPR
392 #if !(__has_feature(cxx_relaxed_constexpr))
393 #define _LIBCPP_HAS_NO_CXX14_CONSTEXPR
396 #if !(__has_feature(cxx_variable_templates))
397 #define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES
400 #if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L
401 #if defined(__FreeBSD__)
402 #define _LIBCPP_HAS_QUICK_EXIT
403 #define _LIBCPP_HAS_C11_FEATURES
404 #elif defined(__Fuchsia__)
405 #define _LIBCPP_HAS_QUICK_EXIT
406 #define _LIBCPP_HAS_C11_FEATURES
407 #elif defined(__linux__)
408 #if !defined(_LIBCPP_HAS_MUSL_LIBC)
409 #if __GLIBC_PREREQ(2, 15) || defined(__BIONIC__)
410 #define _LIBCPP_HAS_QUICK_EXIT
412 #if __GLIBC_PREREQ(2, 17)
413 #define _LIBCPP_HAS_C11_FEATURES
415 #else // defined(_LIBCPP_HAS_MUSL_LIBC)
416 #define _LIBCPP_HAS_QUICK_EXIT
417 #define _LIBCPP_HAS_C11_FEATURES
422 #if !(__has_feature(cxx_noexcept))
423 #define _LIBCPP_HAS_NO_NOEXCEPT
426 #if __has_feature(underlying_type)
427 # define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T)
430 #if __has_feature(is_literal)
431 # define _LIBCPP_IS_LITERAL(T) __is_literal(T)
434 // Inline namespaces are available in Clang regardless of C++ dialect.
435 #define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE {
436 #define _LIBCPP_END_NAMESPACE_STD } }
437 #define _VSTD std::_LIBCPP_NAMESPACE
440 inline namespace _LIBCPP_NAMESPACE {
444 #if !defined(_LIBCPP_HAS_NO_ASAN) && !__has_feature(address_sanitizer)
445 #define _LIBCPP_HAS_NO_ASAN
448 // Allow for build-time disabling of unsigned integer sanitization
449 #if !defined(_LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK) && __has_attribute(no_sanitize)
450 #define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK __attribute__((__no_sanitize__("unsigned-integer-overflow")))
453 #elif defined(_LIBCPP_COMPILER_GCC)
455 #define _ALIGNAS(x) __attribute__((__aligned__(x)))
456 #define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x))))
458 #define _LIBCPP_NORETURN __attribute__((noreturn))
461 #define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T)
462 #define _LIBCPP_IS_LITERAL(T) __is_literal_type(T)
463 #define _LIBCPP_HAS_IS_FINAL
466 #if defined(__GNUC__) && _GNUC_VER >= 403
467 # define _LIBCPP_HAS_IS_BASE_OF
471 #define _LIBCPP_NO_EXCEPTIONS
474 // constexpr was added to GCC in 4.6.
476 #define _LIBCPP_HAS_NO_CONSTEXPR
477 // Can only use constexpr in c++11 mode.
478 #elif !defined(__GXX_EXPERIMENTAL_CXX0X__) && __cplusplus < 201103L
479 #define _LIBCPP_HAS_NO_CONSTEXPR
482 // Determine if GCC supports relaxed constexpr
483 #if !defined(__cpp_constexpr) || __cpp_constexpr < 201304L
484 #define _LIBCPP_HAS_NO_CXX14_CONSTEXPR
487 // GCC 5 will support variable templates
488 #if !defined(__cpp_variable_templates) || __cpp_variable_templates < 201304L
489 #define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES
492 #ifndef __GXX_EXPERIMENTAL_CXX0X__
493 #define _LIBCPP_HAS_NO_DECLTYPE
494 #define _LIBCPP_HAS_NO_NULLPTR
495 #define _LIBCPP_HAS_NO_UNICODE_CHARS
496 #define _LIBCPP_HAS_NO_VARIADICS
497 #define _LIBCPP_HAS_NO_RVALUE_REFERENCES
498 #define _LIBCPP_HAS_NO_STRONG_ENUMS
499 #define _LIBCPP_HAS_NO_NOEXCEPT
501 #else // __GXX_EXPERIMENTAL_CXX0X__
504 #define _LIBCPP_HAS_NO_RVALUE_REFERENCES
509 #define _LIBCPP_HAS_NO_DECLTYPE
510 #define _LIBCPP_HAS_NO_UNICODE_CHARS
511 #define _LIBCPP_HAS_NO_VARIADICS
512 #define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
513 #endif // _GNUC_VER < 404
516 #define _LIBCPP_HAS_NO_NOEXCEPT
517 #define _LIBCPP_HAS_NO_NULLPTR
520 #endif // __GXX_EXPERIMENTAL_CXX0X__
522 #define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { inline namespace _LIBCPP_NAMESPACE {
523 #define _LIBCPP_END_NAMESPACE_STD } }
524 #define _VSTD std::_LIBCPP_NAMESPACE
527 inline namespace _LIBCPP_NAMESPACE {
531 #if !defined(_LIBCPP_HAS_NO_ASAN) && !defined(__SANITIZE_ADDRESS__)
532 #define _LIBCPP_HAS_NO_ASAN
535 #elif defined(_LIBCPP_COMPILER_MSVC)
537 #define _LIBCPP_TOSTRING2(x) #x
538 #define _LIBCPP_TOSTRING(x) _LIBCPP_TOSTRING2(x)
539 #define _LIBCPP_WARNING(x) __pragma(message(__FILE__ "(" _LIBCPP_TOSTRING(__LINE__) ") : warning note: " x))
542 #error "MSVC versions prior to Visual Studio 2015 are not supported"
545 #define _LIBCPP_HAS_IS_BASE_OF
546 #define _LIBCPP_HAS_NO_CONSTEXPR
547 #define _LIBCPP_HAS_NO_CXX14_CONSTEXPR
548 #define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES
550 #define _LIBCPP_HAS_NO_UNICODE_CHARS
552 #define _LIBCPP_HAS_NO_NOEXCEPT
553 #define __alignof__ __alignof
554 #define _LIBCPP_NORETURN __declspec(noreturn)
555 #define _ALIGNAS(x) __declspec(align(x))
556 #define _LIBCPP_HAS_NO_VARIADICS
558 #define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {
559 #define _LIBCPP_END_NAMESPACE_STD }
562 # define _LIBCPP_WEAK
566 #define _LIBCPP_HAS_NO_ASAN
568 #elif defined(_LIBCPP_COMPILER_IBM)
570 #define _ALIGNAS(x) __attribute__((__aligned__(x)))
571 #define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x))))
572 #define _ATTRIBUTE(x) __attribute__((x))
573 #define _LIBCPP_NORETURN __attribute__((noreturn))
575 #define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
576 #define _LIBCPP_HAS_NO_NOEXCEPT
577 #define _LIBCPP_HAS_NO_NULLPTR
578 #define _LIBCPP_HAS_NO_UNICODE_CHARS
579 #define _LIBCPP_HAS_IS_BASE_OF
580 #define _LIBCPP_HAS_IS_FINAL
581 #define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES
584 #define __MULTILOCALE_API
587 #define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE {
588 #define _LIBCPP_END_NAMESPACE_STD } }
589 #define _VSTD std::_LIBCPP_NAMESPACE
592 inline namespace _LIBCPP_NAMESPACE {
596 #define _LIBCPP_HAS_NO_ASAN
598 #endif // _LIBCPP_COMPILER_[CLANG|GCC|MSVC|IBM]
600 #if defined(_LIBCPP_OBJECT_FORMAT_COFF)
601 #if defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
602 # define _LIBCPP_DLL_VIS
603 # define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS
604 # define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS
605 # define _LIBCPP_OVERRIDABLE_FUNC_VIS
606 #elif defined(_LIBCPP_BUILDING_LIBRARY)
607 # define _LIBCPP_DLL_VIS __declspec(dllexport)
608 # define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS
609 # define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS _LIBCPP_DLL_VIS
610 # define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_DLL_VIS
612 # define _LIBCPP_DLL_VIS __declspec(dllimport)
613 # define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS _LIBCPP_DLL_VIS
614 # define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS
615 # define _LIBCPP_OVERRIDABLE_FUNC_VIS
618 #define _LIBCPP_TYPE_VIS _LIBCPP_DLL_VIS
619 #define _LIBCPP_FUNC_VIS _LIBCPP_DLL_VIS
620 #define _LIBCPP_EXTERN_VIS _LIBCPP_DLL_VIS
621 #define _LIBCPP_EXCEPTION_ABI _LIBCPP_DLL_VIS
622 #define _LIBCPP_HIDDEN
623 #define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
624 #define _LIBCPP_TEMPLATE_VIS
625 #define _LIBCPP_FUNC_VIS_ONLY
626 #define _LIBCPP_ENUM_VIS
628 #if defined(_LIBCPP_COMPILER_MSVC)
629 # define _LIBCPP_INLINE_VISIBILITY __forceinline
630 # define _LIBCPP_ALWAYS_INLINE __forceinline
631 # define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __forceinline
633 # define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__always_inline__))
634 # define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__))
635 # define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__ ((__always_inline__))
637 #endif // defined(_LIBCPP_OBJECT_FORMAT_COFF)
639 #ifndef _LIBCPP_HIDDEN
640 #if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
641 #define _LIBCPP_HIDDEN __attribute__ ((__visibility__("hidden")))
643 #define _LIBCPP_HIDDEN
647 #ifndef _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
648 #if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
649 // The inline should be removed once PR32114 is resolved
650 #define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS inline _LIBCPP_HIDDEN
652 #define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
656 #ifndef _LIBCPP_FUNC_VIS
657 #if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
658 #define _LIBCPP_FUNC_VIS __attribute__ ((__visibility__("default")))
660 #define _LIBCPP_FUNC_VIS
664 #ifndef _LIBCPP_TYPE_VIS
665 # if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
666 # define _LIBCPP_TYPE_VIS __attribute__ ((__visibility__("default")))
668 # define _LIBCPP_TYPE_VIS
672 #ifndef _LIBCPP_TEMPLATE_VIS
673 # if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
674 # if __has_attribute(__type_visibility__)
675 # define _LIBCPP_TEMPLATE_VIS __attribute__ ((__type_visibility__("default")))
677 # define _LIBCPP_TEMPLATE_VIS __attribute__ ((__visibility__("default")))
680 # define _LIBCPP_TEMPLATE_VIS
684 #ifndef _LIBCPP_FUNC_VIS_ONLY
685 # define _LIBCPP_FUNC_VIS_ONLY _LIBCPP_FUNC_VIS
688 #ifndef _LIBCPP_EXTERN_VIS
689 # define _LIBCPP_EXTERN_VIS
692 #ifndef _LIBCPP_OVERRIDABLE_FUNC_VIS
693 # define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_FUNC_VIS
696 #ifndef _LIBCPP_EXCEPTION_ABI
697 #if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
698 #define _LIBCPP_EXCEPTION_ABI __attribute__ ((__visibility__("default")))
700 #define _LIBCPP_EXCEPTION_ABI
704 #ifndef _LIBCPP_ENUM_VIS
705 # if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__)
706 # define _LIBCPP_ENUM_VIS __attribute__ ((__type_visibility__("default")))
708 # define _LIBCPP_ENUM_VIS
712 #ifndef _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS
713 # if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__)
714 # define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS __attribute__ ((__visibility__("default")))
716 # define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS
720 #ifndef _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS
721 # define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS
724 #ifndef _LIBCPP_INLINE_VISIBILITY
725 #if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
726 #define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__visibility__("hidden"), __always_inline__))
728 #define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__always_inline__))
732 #ifndef _LIBCPP_ALWAYS_INLINE
733 #if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
734 #define _LIBCPP_ALWAYS_INLINE __attribute__ ((__visibility__("hidden"), __always_inline__))
736 #define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__))
740 #ifndef _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY
741 # if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
742 # define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__((__visibility__("default"), __always_inline__))
744 # define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__((__always_inline__))
748 #ifndef _LIBCPP_PREFERRED_OVERLOAD
749 # if __has_attribute(__enable_if__)
750 # define _LIBCPP_PREFERRED_OVERLOAD __attribute__ ((__enable_if__(true, "")))
754 #ifndef _LIBCPP_HAS_NO_NOEXCEPT
755 # define _NOEXCEPT noexcept
756 # define _NOEXCEPT_(x) noexcept(x)
758 # define _NOEXCEPT throw()
759 # define _NOEXCEPT_(x)
762 #if defined(_LIBCPP_DEBUG_USE_EXCEPTIONS)
763 # if !defined(_LIBCPP_DEBUG)
764 # error cannot use _LIBCPP_DEBUG_USE_EXCEPTIONS unless _LIBCPP_DEBUG is defined
766 # define _NOEXCEPT_DEBUG noexcept(false)
767 # define _NOEXCEPT_DEBUG_(x) noexcept(false)
769 # define _NOEXCEPT_DEBUG _NOEXCEPT
770 # define _NOEXCEPT_DEBUG_(x) _NOEXCEPT_(x)
773 #ifdef _LIBCPP_HAS_NO_UNICODE_CHARS
774 typedef unsigned short char16_t;
775 typedef unsigned int char32_t;
776 #endif // _LIBCPP_HAS_NO_UNICODE_CHARS
778 #ifndef __SIZEOF_INT128__
779 #define _LIBCPP_HAS_NO_INT128
782 #ifdef _LIBCPP_CXX03_LANG
783 # if __has_extension(c_static_assert)
784 # define static_assert(__b, __m) _Static_assert(__b, __m)
787 template <bool> struct __static_assert_test;
788 template <> struct __static_assert_test<true> {};
789 template <unsigned> struct __static_assert_check {};
791 #define static_assert(__b, __m) \
792 typedef __static_assert_check<sizeof(__static_assert_test<(__b)>)> \
793 _LIBCPP_CONCAT(__t, __LINE__)
794 # endif // __has_extension(c_static_assert)
795 #endif // _LIBCPP_CXX03_LANG
797 #ifdef _LIBCPP_HAS_NO_DECLTYPE
798 // GCC 4.6 provides __decltype in all standard modes.
799 #if __has_keyword(__decltype) || _LIBCPP_CLANG_VER >= 304 || _GNUC_VER >= 406
800 # define decltype(__x) __decltype(__x)
802 # define decltype(__x) __typeof__(__x)
806 #ifdef _LIBCPP_HAS_NO_CONSTEXPR
807 #define _LIBCPP_CONSTEXPR
809 #define _LIBCPP_CONSTEXPR constexpr
812 #ifdef _LIBCPP_CXX03_LANG
813 #define _LIBCPP_DEFAULT {}
815 #define _LIBCPP_DEFAULT = default;
818 #ifdef _LIBCPP_CXX03_LANG
819 #define _LIBCPP_EQUAL_DELETE
821 #define _LIBCPP_EQUAL_DELETE = delete
825 #define _NOALIAS __attribute__((__malloc__))
830 #if __has_feature(cxx_explicit_conversions) || defined(__IBMCPP__) || \
831 (!defined(_LIBCPP_CXX03_LANG) && defined(__GNUC__)) // All supported GCC versions
832 # define _LIBCPP_EXPLICIT explicit
834 # define _LIBCPP_EXPLICIT
837 #if !__has_builtin(__builtin_operator_new) || !__has_builtin(__builtin_operator_delete)
838 # define _LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE
841 #ifdef _LIBCPP_HAS_NO_STRONG_ENUMS
842 #define _LIBCPP_DECLARE_STRONG_ENUM(x) struct _LIBCPP_TYPE_VIS x { enum __lx
843 #define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) \
845 _LIBCPP_ALWAYS_INLINE x(__lx __v) : __v_(__v) {} \
846 _LIBCPP_ALWAYS_INLINE explicit x(int __v) : __v_(static_cast<__lx>(__v)) {} \
847 _LIBCPP_ALWAYS_INLINE operator int() const {return __v_;} \
849 #else // _LIBCPP_HAS_NO_STRONG_ENUMS
850 #define _LIBCPP_DECLARE_STRONG_ENUM(x) enum class _LIBCPP_ENUM_VIS x
851 #define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x)
852 #endif // _LIBCPP_HAS_NO_STRONG_ENUMS
855 # if _LIBCPP_DEBUG == 0
856 # define _LIBCPP_DEBUG_LEVEL 1
857 # elif _LIBCPP_DEBUG == 1
858 # define _LIBCPP_DEBUG_LEVEL 2
860 # error Supported values for _LIBCPP_DEBUG are 0 and 1
862 # if !defined(_LIBCPP_BUILDING_LIBRARY)
863 # define _LIBCPP_EXTERN_TEMPLATE(...)
867 #ifdef _LIBCPP_DISABLE_EXTERN_TEMPLATE
868 #define _LIBCPP_EXTERN_TEMPLATE(...)
869 #define _LIBCPP_EXTERN_TEMPLATE2(...)
872 #ifndef _LIBCPP_EXTERN_TEMPLATE
873 #define _LIBCPP_EXTERN_TEMPLATE(...) extern template __VA_ARGS__;
876 #ifndef _LIBCPP_EXTERN_TEMPLATE2
877 #define _LIBCPP_EXTERN_TEMPLATE2(...) extern template __VA_ARGS__;
880 #if defined(__APPLE__) && defined(__LP64__) && !defined(__x86_64__)
881 #define _LIBCPP_NONUNIQUE_RTTI_BIT (1ULL << 63)
884 #if defined(__APPLE__) || defined(__FreeBSD__) || defined(_LIBCPP_MSVCRT) || \
885 defined(__sun__) || defined(__NetBSD__) || defined(__CloudABI__)
886 #define _LIBCPP_LOCALE__L_EXTENSIONS 1
889 #if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
890 // Most unix variants have catopen. These are the specific ones that don't.
891 #if !defined(__BIONIC__) && !defined(_NEWLIB_VERSION)
892 #define _LIBCPP_HAS_CATOPEN 1
897 #define _DECLARE_C99_LDBL_MATH 1
900 #if defined(__APPLE__)
901 # if !defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && \
902 defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__)
903 # define __MAC_OS_X_VERSION_MIN_REQUIRED __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__
905 # if defined(__MAC_OS_X_VERSION_MIN_REQUIRED)
906 # if __MAC_OS_X_VERSION_MIN_REQUIRED < 1060
907 # define _LIBCPP_HAS_NO_ALIGNED_ALLOCATION
910 #endif // defined(__APPLE__)
912 #if defined(__APPLE__) || defined(__FreeBSD__)
913 #define _LIBCPP_HAS_DEFAULTRUNELOCALE
916 #if defined(__APPLE__) || defined(__FreeBSD__) || defined(__sun__)
917 #define _LIBCPP_WCTYPE_IS_MASK
920 #ifndef _LIBCPP_STD_VER
921 # if __cplusplus <= 201103L
922 # define _LIBCPP_STD_VER 11
923 # elif __cplusplus <= 201402L
924 # define _LIBCPP_STD_VER 14
926 # define _LIBCPP_STD_VER 16 // current year, or date of c++17 ratification
928 #endif // _LIBCPP_STD_VER
930 #if _LIBCPP_STD_VER > 11
931 #define _LIBCPP_DEPRECATED [[deprecated]]
933 #define _LIBCPP_DEPRECATED
936 #if _LIBCPP_STD_VER <= 11
937 #define _LIBCPP_EXPLICIT_AFTER_CXX11
938 #define _LIBCPP_DEPRECATED_AFTER_CXX11
940 #define _LIBCPP_EXPLICIT_AFTER_CXX11 explicit
941 #define _LIBCPP_DEPRECATED_AFTER_CXX11 [[deprecated]]
944 #if _LIBCPP_STD_VER > 11 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR)
945 #define _LIBCPP_CONSTEXPR_AFTER_CXX11 constexpr
947 #define _LIBCPP_CONSTEXPR_AFTER_CXX11
950 #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR)
951 #define _LIBCPP_CONSTEXPR_AFTER_CXX14 constexpr
953 #define _LIBCPP_CONSTEXPR_AFTER_CXX14
956 // FIXME: Remove all usages of this macro once compilers catch up.
957 #if !defined(__cpp_inline_variables) || (__cpp_inline_variables < 201606L)
958 # define _LIBCPP_HAS_NO_INLINE_VARIABLES
961 #ifdef _LIBCPP_HAS_NO_RVALUE_REFERENCES
962 # define _LIBCPP_EXPLICIT_MOVE(x) _VSTD::move(x)
964 # define _LIBCPP_EXPLICIT_MOVE(x) (x)
967 #ifndef _LIBCPP_HAS_NO_ASAN
968 _LIBCPP_FUNC_VIS extern "C" void __sanitizer_annotate_contiguous_container(
969 const void *, const void *, const void *, const void *);
972 // Try to find out if RTTI is disabled.
973 // g++ and cl.exe have RTTI on by default and define a macro when it is.
974 // g++ only defines the macro in 4.3.2 and onwards.
975 #if !defined(_LIBCPP_NO_RTTI)
976 # if defined(__GNUC__) && ((__GNUC__ >= 5) || (__GNUC__ == 4 && \
977 (__GNUC_MINOR__ >= 3 || __GNUC_PATCHLEVEL__ >= 2))) && !defined(__GXX_RTTI)
978 # define _LIBCPP_NO_RTTI
979 # elif defined(_LIBCPP_COMPILER_MSVC) && !defined(_CPPRTTI)
980 # define _LIBCPP_NO_RTTI
985 # define _LIBCPP_WEAK __attribute__((__weak__))
989 #if !defined(_LIBCPP_HAS_NO_THREADS) && \
990 !defined(_LIBCPP_HAS_THREAD_API_PTHREAD) && \
991 !defined(_LIBCPP_HAS_THREAD_API_WIN32) && \
992 !defined(_LIBCPP_HAS_THREAD_API_EXTERNAL)
993 # if defined(__FreeBSD__) || \
994 defined(__Fuchsia__) || \
995 defined(__NetBSD__) || \
996 defined(__linux__) || \
997 defined(__APPLE__) || \
998 defined(__CloudABI__) || \
999 defined(__sun__) || \
1000 (defined(__MINGW32__) && __libcpp_has_include(<pthread.h>))
1001 # define _LIBCPP_HAS_THREAD_API_PTHREAD
1002 # elif defined(_LIBCPP_WIN32API)
1003 # define _LIBCPP_HAS_THREAD_API_WIN32
1005 # error "No thread API"
1006 # endif // _LIBCPP_HAS_THREAD_API
1007 #endif // _LIBCPP_HAS_NO_THREADS
1009 #if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_PTHREAD)
1010 # error _LIBCPP_HAS_THREAD_API_PTHREAD may only be defined when \
1011 _LIBCPP_HAS_NO_THREADS is not defined.
1014 #if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_EXTERNAL)
1015 # error _LIBCPP_HAS_THREAD_API_EXTERNAL may not be defined when \
1016 _LIBCPP_HAS_NO_THREADS is defined.
1019 #if defined(_LIBCPP_HAS_NO_MONOTONIC_CLOCK) && !defined(_LIBCPP_HAS_NO_THREADS)
1020 # error _LIBCPP_HAS_NO_MONOTONIC_CLOCK may only be defined when \
1021 _LIBCPP_HAS_NO_THREADS is defined.
1024 // Systems that use capability-based security (FreeBSD with Capsicum,
1025 // Nuxi CloudABI) may only provide local filesystem access (using *at()).
1026 // Functions like open(), rename(), unlink() and stat() should not be
1027 // used, as they attempt to access the global filesystem namespace.
1029 #define _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE
1032 // CloudABI is intended for running networked services. Processes do not
1033 // have standard input and output channels.
1035 #define _LIBCPP_HAS_NO_STDIN
1036 #define _LIBCPP_HAS_NO_STDOUT
1039 #if defined(__BIONIC__) || defined(__CloudABI__) || \
1040 defined(__Fuchsia__) || defined(_LIBCPP_HAS_MUSL_LIBC)
1041 #define _LIBCPP_PROVIDES_DEFAULT_RUNE_TABLE
1044 // Thread-unsafe functions such as strtok() and localtime()
1045 // are not available.
1047 #define _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS
1050 #if __has_feature(cxx_atomic) || __has_extension(c_atomic) || __has_keyword(_Atomic)
1051 #define _LIBCPP_HAS_C_ATOMIC_IMP
1052 #elif _GNUC_VER > 407
1053 #define _LIBCPP_HAS_GCC_ATOMIC_IMP
1056 #if (!defined(_LIBCPP_HAS_C_ATOMIC_IMP) && !defined(_LIBCPP_HAS_GCC_ATOMIC_IMP)) \
1057 || defined(_LIBCPP_HAS_NO_THREADS)
1058 #define _LIBCPP_HAS_NO_ATOMIC_HEADER
1061 #ifndef _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK
1062 #define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK
1065 #if defined(_LIBCPP_ENABLE_THREAD_SAFETY_ANNOTATIONS)
1066 #if defined(__clang__) && __has_attribute(acquire_capability)
1067 // Work around the attribute handling in clang. When both __declspec and
1068 // __attribute__ are present, the processing goes awry preventing the definition
1070 #if !defined(_LIBCPP_OBJECT_FORMAT_COFF)
1071 #define _LIBCPP_HAS_THREAD_SAFETY_ANNOTATIONS
1076 #if __has_attribute(require_constant_initialization)
1077 #define _LIBCPP_SAFE_STATIC __attribute__((__require_constant_initialization__))
1079 #define _LIBCPP_SAFE_STATIC
1082 #if !__has_builtin(__builtin_addressof) && _GNUC_VER < 700
1083 # define _LIBCPP_HAS_NO_BUILTIN_ADDRESSOF
1086 #if !defined(_LIBCPP_HAS_NO_OFF_T_FUNCTIONS)
1087 #if defined(_LIBCPP_MSVCRT) || defined(_NEWLIB_VERSION)
1088 #define _LIBCPP_HAS_NO_OFF_T_FUNCTIONS
1092 #if __has_attribute(diagnose_if) && !defined(_LIBCPP_DISABLE_ADDITIONAL_DIAGNOSTICS)
1093 # define _LIBCPP_DIAGNOSE_WARNING(...) \
1094 __attribute__((diagnose_if(__VA_ARGS__, "warning")))
1095 # define _LIBCPP_DIAGNOSE_ERROR(...) \
1096 __attribute__((diagnose_if(__VA_ARGS__, "error")))
1098 # define _LIBCPP_DIAGNOSE_WARNING(...)
1099 # define _LIBCPP_DIAGNOSE_ERROR(...)
1102 #if __has_attribute(fallthough) || _GNUC_VER >= 700
1103 // Use a function like macro to imply that it must be followed by a semicolon
1104 #define _LIBCPP_FALLTHROUGH() __attribute__((__fallthrough__))
1106 #define _LIBCPP_FALLTHROUGH() ((void)0)
1109 #if defined(_LIBCPP_ABI_MICROSOFT) && \
1110 (defined(_LIBCPP_COMPILER_MSVC) || __has_declspec_attribute(empty_bases))
1111 # define _LIBCPP_DECLSPEC_EMPTY_BASES __declspec(empty_bases)
1113 # define _LIBCPP_DECLSPEC_EMPTY_BASES
1116 #if defined(_LIBCPP_ENABLE_CXX17_REMOVED_FEATURES)
1117 # define _LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR
1118 # define _LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS
1119 # define _LIBCPP_ENABLE_CXX17_REMOVED_RANDOM_SHUFFLE
1120 # define _LIBCPP_ENABLE_CXX17_REMOVED_BINDERS
1121 #endif // _LIBCPP_ENABLE_CXX17_REMOVED_FEATURES
1123 #if !defined(__cpp_deduction_guides) || __cpp_deduction_guides < 201611
1124 # define _LIBCPP_HAS_NO_DEDUCTION_GUIDES
1127 #if !__has_keyword(__is_aggregate) && (_GNUC_VER_NEW < 7001)
1128 # define _LIBCPP_HAS_NO_IS_AGGREGATE
1131 #if !defined(__cpp_coroutines) || __cpp_coroutines < 201703L
1132 # define _LIBCPP_HAS_NO_COROUTINES
1135 #endif // __cplusplus
1137 // Decide whether to use availability macros.
1138 #if !defined(_LIBCPP_BUILDING_LIBRARY) && \
1139 !defined(_LIBCPP_DISABLE_AVAILABILITY) && \
1140 __has_feature(attribute_availability_with_strict) && \
1141 __has_feature(attribute_availability_in_templates)
1143 #define _LIBCPP_USE_AVAILABILITY_APPLE
1147 // Define availability macros.
1148 #if defined(_LIBCPP_USE_AVAILABILITY_APPLE)
1149 #define _LIBCPP_AVAILABILITY_SHARED_MUTEX \
1150 __attribute__((availability(macosx,strict,introduced=10.12))) \
1151 __attribute__((availability(ios,strict,introduced=10.0))) \
1152 __attribute__((availability(tvos,strict,introduced=10.0))) \
1153 __attribute__((availability(watchos,strict,introduced=3.0)))
1154 #define _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS __attribute__((unavailable))
1155 #define _LIBCPP_AVAILABILITY_BAD_ARRAY_LENGTH __attribute__((unavailable))
1156 #define _LIBCPP_AVAILABILITY_UNCAUGHT_EXCEPTIONS \
1157 __attribute__((availability(macosx,strict,introduced=10.12))) \
1158 __attribute__((availability(ios,strict,introduced=10.0))) \
1159 __attribute__((availability(tvos,strict,introduced=10.0))) \
1160 __attribute__((availability(watchos,strict,introduced=3.0)))
1161 #define _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE \
1162 __attribute__((availability(macosx,strict,introduced=10.12))) \
1163 __attribute__((availability(ios,strict,introduced=10.0))) \
1164 __attribute__((availability(tvos,strict,introduced=10.0))) \
1165 __attribute__((availability(watchos,strict,introduced=3.0)))
1166 #define _LIBCPP_AVAILABILITY_FUTURE_ERROR \
1167 __attribute__((availability(ios,strict,introduced=6.0)))
1168 #define _LIBCPP_AVAILABILITY_TYPEINFO_VTABLE \
1169 __attribute__((availability(macosx,strict,introduced=10.9))) \
1170 __attribute__((availability(ios,strict,introduced=7.0)))
1171 #define _LIBCPP_AVAILABILITY_LOCALE_CATEGORY \
1172 __attribute__((availability(macosx,strict,introduced=10.9))) \
1173 __attribute__((availability(ios,strict,introduced=7.0)))
1174 #define _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR \
1175 __attribute__((availability(macosx,strict,introduced=10.9))) \
1176 __attribute__((availability(ios,strict,introduced=7.0)))
1178 #define _LIBCPP_AVAILABILITY_SHARED_MUTEX
1179 #define _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS
1180 #define _LIBCPP_AVAILABILITY_BAD_ARRAY_LENGTH
1181 #define _LIBCPP_AVAILABILITY_UNCAUGHT_EXCEPTIONS
1182 #define _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE
1183 #define _LIBCPP_AVAILABILITY_FUTURE_ERROR
1184 #define _LIBCPP_AVAILABILITY_TYPEINFO_VTABLE
1185 #define _LIBCPP_AVAILABILITY_LOCALE_CATEGORY
1186 #define _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR
1189 // Define availability that depends on _LIBCPP_NO_EXCEPTIONS.
1190 #ifdef _LIBCPP_NO_EXCEPTIONS
1191 #define _LIBCPP_AVAILABILITY_DYNARRAY
1192 #define _LIBCPP_AVAILABILITY_FUTURE
1194 #define _LIBCPP_AVAILABILITY_DYNARRAY _LIBCPP_AVAILABILITY_BAD_ARRAY_LENGTH
1195 #define _LIBCPP_AVAILABILITY_FUTURE _LIBCPP_AVAILABILITY_FUTURE_ERROR
1198 // Availability of stream API in the dylib got dropped and re-added. The
1199 // extern template should effectively be available at:
1200 // availability(macosx,introduced=10.9)
1201 // availability(ios,introduced=7.0)
1202 #if defined(_LIBCPP_USE_AVAILABILITY_APPLE) && \
1203 ((defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && \
1204 __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ <= 1090) || \
1205 (defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) && \
1206 __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ <= 70000))
1207 #define _LIBCPP_AVAILABILITY_NO_STREAMS_EXTERN_TEMPLATE
1210 #if defined(_LIBCPP_COMPILER_IBM)
1211 #define _LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO
1214 #if defined(_LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO)
1215 # define _LIBCPP_PUSH_MACROS
1216 # define _LIBCPP_POP_MACROS
1218 // Don't warn about macro conflicts when we can restore them at the
1219 // end of the header.
1220 # ifndef _LIBCPP_DISABLE_MACRO_CONFLICT_WARNINGS
1221 # define _LIBCPP_DISABLE_MACRO_CONFLICT_WARNINGS
1223 # if defined(_LIBCPP_COMPILER_MSVC)
1224 # define _LIBCPP_PUSH_MACROS \
1225 __pragma(push_macro("min")) \
1226 __pragma(push_macro("max"))
1227 # define _LIBCPP_POP_MACROS \
1228 __pragma(pop_macro("min")) \
1229 __pragma(pop_macro("max"))
1231 # define _LIBCPP_PUSH_MACROS \
1232 _Pragma("push_macro(\"min\")") \
1233 _Pragma("push_macro(\"max\")")
1234 # define _LIBCPP_POP_MACROS \
1235 _Pragma("pop_macro(\"min\")") \
1236 _Pragma("pop_macro(\"max\")")
1238 #endif // defined(_LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO)
1240 #endif // _LIBCPP_CONFIG