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 1
224 # define _LIBCPP_LITTLE_ENDIAN 1
225 # define _LIBCPP_BIG_ENDIAN 0
226 # define _LIBCPP_SHORT_WCHAR 1
227 // If mingw not explicitly detected, assume using MS C runtime only.
229 # define _LIBCPP_MSVCRT // Using Microsoft's C Runtime library
231 # if (defined(_M_AMD64) || defined(__x86_64__)) || (defined(_M_ARM) || defined(__arm__))
232 # define _LIBCPP_HAS_BITSCAN64
234 # if defined(_LIBCPP_MSVCRT)
235 # define _LIBCPP_HAS_QUICK_EXIT
238 // Some CRT APIs are unavailable to store apps
239 #if defined(WINAPI_FAMILY)
240 #include <winapifamily.h>
241 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) && \
242 (!defined(WINAPI_PARTITION_SYSTEM) || \
243 !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_SYSTEM))
244 #define _LIBCPP_WINDOWS_STORE_APP
247 #endif // defined(_WIN32)
250 # include <sys/isa_defs.h>
251 # ifdef _LITTLE_ENDIAN
252 # define _LIBCPP_LITTLE_ENDIAN 1
253 # define _LIBCPP_BIG_ENDIAN 0
255 # define _LIBCPP_LITTLE_ENDIAN 0
256 # define _LIBCPP_BIG_ENDIAN 1
260 #if defined(__CloudABI__)
261 // Certain architectures provide arc4random(). Prefer using
262 // arc4random() over /dev/{u,}random to make it possible to obtain
263 // random data even when using sandboxing mechanisms such as chroots,
265 # define _LIBCPP_USING_ARC4_RANDOM
266 #elif defined(__native_client__)
267 // NaCl's sandbox (which PNaCl also runs in) doesn't allow filesystem access,
268 // including accesses to the special files under /dev. C++11's
269 // std::random_device is instead exposed through a NaCl syscall.
270 # define _LIBCPP_USING_NACL_RANDOM
271 #elif defined(_LIBCPP_WIN32API)
272 # define _LIBCPP_USING_WIN32_RANDOM
274 # define _LIBCPP_USING_DEV_RANDOM
277 #if !defined(_LIBCPP_LITTLE_ENDIAN) || !defined(_LIBCPP_BIG_ENDIAN)
279 # if __BYTE_ORDER == __LITTLE_ENDIAN
280 # define _LIBCPP_LITTLE_ENDIAN 1
281 # define _LIBCPP_BIG_ENDIAN 0
282 # elif __BYTE_ORDER == __BIG_ENDIAN
283 # define _LIBCPP_LITTLE_ENDIAN 0
284 # define _LIBCPP_BIG_ENDIAN 1
285 # else // __BYTE_ORDER == __BIG_ENDIAN
286 # error unable to determine endian
288 #endif // !defined(_LIBCPP_LITTLE_ENDIAN) || !defined(_LIBCPP_BIG_ENDIAN)
290 #if __has_attribute(__no_sanitize__)
291 #define _LIBCPP_NO_CFI __attribute__((__no_sanitize__("cfi")))
293 #define _LIBCPP_NO_CFI
296 #if defined(_LIBCPP_COMPILER_CLANG)
298 // _LIBCPP_ALTERNATE_STRING_LAYOUT is an old name for
299 // _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT left here for backward compatibility.
300 #if (defined(__APPLE__) && !defined(__i386__) && !defined(__x86_64__) && \
301 (!defined(__arm__) || __ARM_ARCH_7K__ >= 2)) || \
302 defined(_LIBCPP_ALTERNATE_STRING_LAYOUT)
303 #define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT
306 #if __has_feature(cxx_alignas)
307 # define _ALIGNAS_TYPE(x) alignas(x)
308 # define _ALIGNAS(x) alignas(x)
310 # define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x))))
311 # define _ALIGNAS(x) __attribute__((__aligned__(x)))
314 #if __cplusplus < 201103L
315 typedef __char16_t char16_t;
316 typedef __char32_t char32_t;
319 #if !(__has_feature(cxx_exceptions)) && !defined(_LIBCPP_NO_EXCEPTIONS)
320 #define _LIBCPP_NO_EXCEPTIONS
323 #if !(__has_feature(cxx_rtti)) && !defined(_LIBCPP_NO_RTTI)
324 #define _LIBCPP_NO_RTTI
327 #if !(__has_feature(cxx_strong_enums))
328 #define _LIBCPP_HAS_NO_STRONG_ENUMS
331 #if !(__has_feature(cxx_decltype))
332 #define _LIBCPP_HAS_NO_DECLTYPE
335 #if __has_feature(cxx_attributes)
336 # define _LIBCPP_NORETURN [[noreturn]]
338 # define _LIBCPP_NORETURN __attribute__ ((noreturn))
341 #if !(__has_feature(cxx_lambdas))
342 #define _LIBCPP_HAS_NO_LAMBDAS
345 #if !(__has_feature(cxx_nullptr))
346 # if (__has_extension(cxx_nullptr) || __has_keyword(__nullptr)) && defined(_LIBCPP_ABI_ALWAYS_USE_CXX11_NULLPTR)
347 # define nullptr __nullptr
349 # define _LIBCPP_HAS_NO_NULLPTR
353 #if !(__has_feature(cxx_rvalue_references))
354 #define _LIBCPP_HAS_NO_RVALUE_REFERENCES
357 #if !(__has_feature(cxx_auto_type))
358 #define _LIBCPP_HAS_NO_AUTO_TYPE
361 #if !(__has_feature(cxx_variadic_templates))
362 #define _LIBCPP_HAS_NO_VARIADICS
365 #if !(__has_feature(cxx_generalized_initializers))
366 #define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
369 #if __has_feature(is_base_of)
370 # define _LIBCPP_HAS_IS_BASE_OF
373 #if __has_feature(is_final)
374 # define _LIBCPP_HAS_IS_FINAL
377 // Objective-C++ features (opt-in)
378 #if __has_feature(objc_arc)
379 #define _LIBCPP_HAS_OBJC_ARC
382 #if __has_feature(objc_arc_weak)
383 #define _LIBCPP_HAS_OBJC_ARC_WEAK
386 #if !(__has_feature(cxx_constexpr))
387 #define _LIBCPP_HAS_NO_CONSTEXPR
390 #if !(__has_feature(cxx_relaxed_constexpr))
391 #define _LIBCPP_HAS_NO_CXX14_CONSTEXPR
394 #if !(__has_feature(cxx_variable_templates))
395 #define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES
398 #if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L
399 #if defined(__FreeBSD__)
400 #define _LIBCPP_HAS_QUICK_EXIT
401 #define _LIBCPP_HAS_C11_FEATURES
402 #elif defined(__Fuchsia__)
403 #define _LIBCPP_HAS_QUICK_EXIT
404 #define _LIBCPP_HAS_C11_FEATURES
405 #elif defined(__linux__)
406 #if !defined(_LIBCPP_HAS_MUSL_LIBC)
407 #if __GLIBC_PREREQ(2, 15) || defined(__BIONIC__)
408 #define _LIBCPP_HAS_QUICK_EXIT
410 #if __GLIBC_PREREQ(2, 17)
411 #define _LIBCPP_HAS_C11_FEATURES
413 #else // defined(_LIBCPP_HAS_MUSL_LIBC)
414 #define _LIBCPP_HAS_QUICK_EXIT
415 #define _LIBCPP_HAS_C11_FEATURES
420 #if !(__has_feature(cxx_noexcept))
421 #define _LIBCPP_HAS_NO_NOEXCEPT
424 #if __has_feature(underlying_type)
425 # define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T)
428 #if __has_feature(is_literal)
429 # define _LIBCPP_IS_LITERAL(T) __is_literal(T)
432 // Inline namespaces are available in Clang regardless of C++ dialect.
433 #define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE {
434 #define _LIBCPP_END_NAMESPACE_STD } }
435 #define _VSTD std::_LIBCPP_NAMESPACE
438 inline namespace _LIBCPP_NAMESPACE {
442 #if !defined(_LIBCPP_HAS_NO_ASAN) && !__has_feature(address_sanitizer)
443 #define _LIBCPP_HAS_NO_ASAN
446 // Allow for build-time disabling of unsigned integer sanitization
447 #if !defined(_LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK) && __has_attribute(no_sanitize)
448 #define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK __attribute__((__no_sanitize__("unsigned-integer-overflow")))
451 #elif defined(_LIBCPP_COMPILER_GCC)
453 #define _ALIGNAS(x) __attribute__((__aligned__(x)))
454 #define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x))))
456 #define _LIBCPP_NORETURN __attribute__((noreturn))
459 #define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T)
460 #define _LIBCPP_IS_LITERAL(T) __is_literal_type(T)
461 #define _LIBCPP_HAS_IS_FINAL
464 #if defined(__GNUC__) && _GNUC_VER >= 403
465 # define _LIBCPP_HAS_IS_BASE_OF
469 #define _LIBCPP_NO_EXCEPTIONS
472 // constexpr was added to GCC in 4.6.
474 #define _LIBCPP_HAS_NO_CONSTEXPR
475 // Can only use constexpr in c++11 mode.
476 #elif !defined(__GXX_EXPERIMENTAL_CXX0X__) && __cplusplus < 201103L
477 #define _LIBCPP_HAS_NO_CONSTEXPR
480 // Determine if GCC supports relaxed constexpr
481 #if !defined(__cpp_constexpr) || __cpp_constexpr < 201304L
482 #define _LIBCPP_HAS_NO_CXX14_CONSTEXPR
485 // GCC 5 will support variable templates
486 #if !defined(__cpp_variable_templates) || __cpp_variable_templates < 201304L
487 #define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES
490 #ifndef __GXX_EXPERIMENTAL_CXX0X__
491 #define _LIBCPP_HAS_NO_DECLTYPE
492 #define _LIBCPP_HAS_NO_NULLPTR
493 #define _LIBCPP_HAS_NO_UNICODE_CHARS
494 #define _LIBCPP_HAS_NO_VARIADICS
495 #define _LIBCPP_HAS_NO_RVALUE_REFERENCES
496 #define _LIBCPP_HAS_NO_STRONG_ENUMS
497 #define _LIBCPP_HAS_NO_NOEXCEPT
499 #else // __GXX_EXPERIMENTAL_CXX0X__
502 #define _LIBCPP_HAS_NO_RVALUE_REFERENCES
507 #define _LIBCPP_HAS_NO_DECLTYPE
508 #define _LIBCPP_HAS_NO_UNICODE_CHARS
509 #define _LIBCPP_HAS_NO_VARIADICS
510 #define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
511 #endif // _GNUC_VER < 404
514 #define _LIBCPP_HAS_NO_NOEXCEPT
515 #define _LIBCPP_HAS_NO_NULLPTR
518 #endif // __GXX_EXPERIMENTAL_CXX0X__
520 #define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { inline namespace _LIBCPP_NAMESPACE {
521 #define _LIBCPP_END_NAMESPACE_STD } }
522 #define _VSTD std::_LIBCPP_NAMESPACE
525 inline namespace _LIBCPP_NAMESPACE {
529 #if !defined(_LIBCPP_HAS_NO_ASAN) && !defined(__SANITIZE_ADDRESS__)
530 #define _LIBCPP_HAS_NO_ASAN
533 #elif defined(_LIBCPP_COMPILER_MSVC)
535 #define _LIBCPP_TOSTRING2(x) #x
536 #define _LIBCPP_TOSTRING(x) _LIBCPP_TOSTRING2(x)
537 #define _LIBCPP_WARNING(x) __pragma(message(__FILE__ "(" _LIBCPP_TOSTRING(__LINE__) ") : warning note: " x))
540 #error "MSVC versions prior to Visual Studio 2015 are not supported"
543 #define _LIBCPP_HAS_IS_BASE_OF
544 #define _LIBCPP_HAS_NO_CONSTEXPR
545 #define _LIBCPP_HAS_NO_CXX14_CONSTEXPR
546 #define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES
548 #define _LIBCPP_HAS_NO_UNICODE_CHARS
550 #define _LIBCPP_HAS_NO_NOEXCEPT
551 #define __alignof__ __alignof
552 #define _LIBCPP_NORETURN __declspec(noreturn)
553 #define _ALIGNAS(x) __declspec(align(x))
554 #define _LIBCPP_HAS_NO_VARIADICS
556 #define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {
557 #define _LIBCPP_END_NAMESPACE_STD }
560 # define _LIBCPP_WEAK
564 #define _LIBCPP_HAS_NO_ASAN
566 #elif defined(_LIBCPP_COMPILER_IBM)
568 #define _ALIGNAS(x) __attribute__((__aligned__(x)))
569 #define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x))))
570 #define _ATTRIBUTE(x) __attribute__((x))
571 #define _LIBCPP_NORETURN __attribute__((noreturn))
573 #define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
574 #define _LIBCPP_HAS_NO_NOEXCEPT
575 #define _LIBCPP_HAS_NO_NULLPTR
576 #define _LIBCPP_HAS_NO_UNICODE_CHARS
577 #define _LIBCPP_HAS_IS_BASE_OF
578 #define _LIBCPP_HAS_IS_FINAL
579 #define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES
582 #define __MULTILOCALE_API
585 #define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE {
586 #define _LIBCPP_END_NAMESPACE_STD } }
587 #define _VSTD std::_LIBCPP_NAMESPACE
590 inline namespace _LIBCPP_NAMESPACE {
594 #define _LIBCPP_HAS_NO_ASAN
596 #endif // _LIBCPP_COMPILER_[CLANG|GCC|MSVC|IBM]
598 #if defined(_LIBCPP_OBJECT_FORMAT_COFF)
599 #if defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
600 # define _LIBCPP_DLL_VIS
601 # define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS
602 # define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS
603 # define _LIBCPP_OVERRIDABLE_FUNC_VIS
604 #elif defined(_LIBCPP_BUILDING_LIBRARY)
605 # define _LIBCPP_DLL_VIS __declspec(dllexport)
606 # define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS
607 # define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS _LIBCPP_DLL_VIS
608 # define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_DLL_VIS
610 # define _LIBCPP_DLL_VIS __declspec(dllimport)
611 # define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS _LIBCPP_DLL_VIS
612 # define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS
613 # define _LIBCPP_OVERRIDABLE_FUNC_VIS
616 #define _LIBCPP_TYPE_VIS _LIBCPP_DLL_VIS
617 #define _LIBCPP_FUNC_VIS _LIBCPP_DLL_VIS
618 #define _LIBCPP_EXTERN_VIS _LIBCPP_DLL_VIS
619 #define _LIBCPP_EXCEPTION_ABI _LIBCPP_DLL_VIS
620 #define _LIBCPP_HIDDEN
621 #define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
622 #define _LIBCPP_TEMPLATE_VIS
623 #define _LIBCPP_FUNC_VIS_ONLY
624 #define _LIBCPP_ENUM_VIS
626 #if defined(_LIBCPP_COMPILER_MSVC)
627 # define _LIBCPP_INLINE_VISIBILITY __forceinline
628 # define _LIBCPP_ALWAYS_INLINE __forceinline
629 # define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __forceinline
631 # define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__always_inline__))
632 # define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__))
633 # define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__ ((__always_inline__))
635 #endif // defined(_LIBCPP_OBJECT_FORMAT_COFF)
637 #ifndef _LIBCPP_HIDDEN
638 #if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
639 #define _LIBCPP_HIDDEN __attribute__ ((__visibility__("hidden")))
641 #define _LIBCPP_HIDDEN
645 #ifndef _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
646 #if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
647 // The inline should be removed once PR32114 is resolved
648 #define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS inline _LIBCPP_HIDDEN
650 #define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
654 #ifndef _LIBCPP_FUNC_VIS
655 #if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
656 #define _LIBCPP_FUNC_VIS __attribute__ ((__visibility__("default")))
658 #define _LIBCPP_FUNC_VIS
662 #ifndef _LIBCPP_TYPE_VIS
663 # if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
664 # define _LIBCPP_TYPE_VIS __attribute__ ((__visibility__("default")))
666 # define _LIBCPP_TYPE_VIS
670 #ifndef _LIBCPP_TEMPLATE_VIS
671 # if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
672 # if __has_attribute(__type_visibility__)
673 # define _LIBCPP_TEMPLATE_VIS __attribute__ ((__type_visibility__("default")))
675 # define _LIBCPP_TEMPLATE_VIS __attribute__ ((__visibility__("default")))
678 # define _LIBCPP_TEMPLATE_VIS
682 #ifndef _LIBCPP_FUNC_VIS_ONLY
683 # define _LIBCPP_FUNC_VIS_ONLY _LIBCPP_FUNC_VIS
686 #ifndef _LIBCPP_EXTERN_VIS
687 # define _LIBCPP_EXTERN_VIS
690 #ifndef _LIBCPP_OVERRIDABLE_FUNC_VIS
691 # define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_FUNC_VIS
694 #ifndef _LIBCPP_EXCEPTION_ABI
695 #if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
696 #define _LIBCPP_EXCEPTION_ABI __attribute__ ((__visibility__("default")))
698 #define _LIBCPP_EXCEPTION_ABI
702 #ifndef _LIBCPP_ENUM_VIS
703 # if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__)
704 # define _LIBCPP_ENUM_VIS __attribute__ ((__type_visibility__("default")))
706 # define _LIBCPP_ENUM_VIS
710 #ifndef _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS
711 # if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__)
712 # define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS __attribute__ ((__visibility__("default")))
714 # define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS
718 #ifndef _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS
719 # define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS
722 #ifndef _LIBCPP_INLINE_VISIBILITY
723 #if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
724 #define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__visibility__("hidden"), __always_inline__))
726 #define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__always_inline__))
730 #ifndef _LIBCPP_ALWAYS_INLINE
731 #if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
732 #define _LIBCPP_ALWAYS_INLINE __attribute__ ((__visibility__("hidden"), __always_inline__))
734 #define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__))
738 #ifndef _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY
739 # if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
740 # define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__((__visibility__("default"), __always_inline__))
742 # define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__((__always_inline__))
746 #ifndef _LIBCPP_PREFERRED_OVERLOAD
747 # if __has_attribute(__enable_if__)
748 # define _LIBCPP_PREFERRED_OVERLOAD __attribute__ ((__enable_if__(true, "")))
752 #ifndef _LIBCPP_HAS_NO_NOEXCEPT
753 # define _NOEXCEPT noexcept
754 # define _NOEXCEPT_(x) noexcept(x)
756 # define _NOEXCEPT throw()
757 # define _NOEXCEPT_(x)
760 #if defined(_LIBCPP_DEBUG_USE_EXCEPTIONS)
761 # if !defined(_LIBCPP_DEBUG)
762 # error cannot use _LIBCPP_DEBUG_USE_EXCEPTIONS unless _LIBCPP_DEBUG is defined
764 # define _NOEXCEPT_DEBUG noexcept(false)
765 # define _NOEXCEPT_DEBUG_(x) noexcept(false)
767 # define _NOEXCEPT_DEBUG _NOEXCEPT
768 # define _NOEXCEPT_DEBUG_(x) _NOEXCEPT_(x)
771 #ifdef _LIBCPP_HAS_NO_UNICODE_CHARS
772 typedef unsigned short char16_t;
773 typedef unsigned int char32_t;
774 #endif // _LIBCPP_HAS_NO_UNICODE_CHARS
776 #ifndef __SIZEOF_INT128__
777 #define _LIBCPP_HAS_NO_INT128
780 #ifdef _LIBCPP_CXX03_LANG
781 # if __has_extension(c_static_assert)
782 # define static_assert(__b, __m) _Static_assert(__b, __m)
785 template <bool> struct __static_assert_test;
786 template <> struct __static_assert_test<true> {};
787 template <unsigned> struct __static_assert_check {};
789 #define static_assert(__b, __m) \
790 typedef __static_assert_check<sizeof(__static_assert_test<(__b)>)> \
791 _LIBCPP_CONCAT(__t, __LINE__)
792 # endif // __has_extension(c_static_assert)
793 #endif // _LIBCPP_CXX03_LANG
795 #ifdef _LIBCPP_HAS_NO_DECLTYPE
796 // GCC 4.6 provides __decltype in all standard modes.
797 #if __has_keyword(__decltype) || _LIBCPP_CLANG_VER >= 304 || _GNUC_VER >= 406
798 # define decltype(__x) __decltype(__x)
800 # define decltype(__x) __typeof__(__x)
804 #ifdef _LIBCPP_HAS_NO_CONSTEXPR
805 #define _LIBCPP_CONSTEXPR
807 #define _LIBCPP_CONSTEXPR constexpr
810 #ifdef _LIBCPP_CXX03_LANG
811 #define _LIBCPP_DEFAULT {}
813 #define _LIBCPP_DEFAULT = default;
816 #ifdef _LIBCPP_CXX03_LANG
817 #define _LIBCPP_EQUAL_DELETE
819 #define _LIBCPP_EQUAL_DELETE = delete
823 #define _NOALIAS __attribute__((__malloc__))
828 #if __has_feature(cxx_explicit_conversions) || defined(__IBMCPP__) || \
829 (!defined(_LIBCPP_CXX03_LANG) && defined(__GNUC__)) // All supported GCC versions
830 # define _LIBCPP_EXPLICIT explicit
832 # define _LIBCPP_EXPLICIT
835 #if !__has_builtin(__builtin_operator_new) || !__has_builtin(__builtin_operator_delete)
836 # define _LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE
839 #ifdef _LIBCPP_HAS_NO_STRONG_ENUMS
840 #define _LIBCPP_DECLARE_STRONG_ENUM(x) struct _LIBCPP_TYPE_VIS x { enum __lx
841 #define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) \
843 _LIBCPP_ALWAYS_INLINE x(__lx __v) : __v_(__v) {} \
844 _LIBCPP_ALWAYS_INLINE explicit x(int __v) : __v_(static_cast<__lx>(__v)) {} \
845 _LIBCPP_ALWAYS_INLINE operator int() const {return __v_;} \
847 #else // _LIBCPP_HAS_NO_STRONG_ENUMS
848 #define _LIBCPP_DECLARE_STRONG_ENUM(x) enum class _LIBCPP_ENUM_VIS x
849 #define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x)
850 #endif // _LIBCPP_HAS_NO_STRONG_ENUMS
853 # if _LIBCPP_DEBUG == 0
854 # define _LIBCPP_DEBUG_LEVEL 1
855 # elif _LIBCPP_DEBUG == 1
856 # define _LIBCPP_DEBUG_LEVEL 2
858 # error Supported values for _LIBCPP_DEBUG are 0 and 1
860 # if !defined(_LIBCPP_BUILDING_LIBRARY)
861 # define _LIBCPP_EXTERN_TEMPLATE(...)
865 #ifdef _LIBCPP_DISABLE_EXTERN_TEMPLATE
866 #define _LIBCPP_EXTERN_TEMPLATE(...)
867 #define _LIBCPP_EXTERN_TEMPLATE2(...)
870 #ifndef _LIBCPP_EXTERN_TEMPLATE
871 #define _LIBCPP_EXTERN_TEMPLATE(...) extern template __VA_ARGS__;
874 #ifndef _LIBCPP_EXTERN_TEMPLATE2
875 #define _LIBCPP_EXTERN_TEMPLATE2(...) extern template __VA_ARGS__;
878 #if defined(__APPLE__) && defined(__LP64__) && !defined(__x86_64__)
879 #define _LIBCPP_NONUNIQUE_RTTI_BIT (1ULL << 63)
882 #if defined(__APPLE__) || defined(__FreeBSD__) || defined(_LIBCPP_MSVCRT) || \
883 defined(__sun__) || defined(__NetBSD__) || defined(__CloudABI__)
884 #define _LIBCPP_LOCALE__L_EXTENSIONS 1
887 #if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
888 // Most unix variants have catopen. These are the specific ones that don't.
889 #if !defined(__BIONIC__) && !defined(_NEWLIB_VERSION)
890 #define _LIBCPP_HAS_CATOPEN 1
895 #define _DECLARE_C99_LDBL_MATH 1
898 #if defined(__APPLE__)
899 # if !defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && \
900 defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__)
901 # define __MAC_OS_X_VERSION_MIN_REQUIRED __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__
903 # if defined(__MAC_OS_X_VERSION_MIN_REQUIRED)
904 # if __MAC_OS_X_VERSION_MIN_REQUIRED < 1060
905 # define _LIBCPP_HAS_NO_ALIGNED_ALLOCATION
908 #endif // defined(__APPLE__)
910 #if defined(__APPLE__) || defined(__FreeBSD__)
911 #define _LIBCPP_HAS_DEFAULTRUNELOCALE
914 #if defined(__APPLE__) || defined(__FreeBSD__) || defined(__sun__)
915 #define _LIBCPP_WCTYPE_IS_MASK
918 #ifndef _LIBCPP_STD_VER
919 # if __cplusplus <= 201103L
920 # define _LIBCPP_STD_VER 11
921 # elif __cplusplus <= 201402L
922 # define _LIBCPP_STD_VER 14
924 # define _LIBCPP_STD_VER 16 // current year, or date of c++17 ratification
926 #endif // _LIBCPP_STD_VER
928 #if _LIBCPP_STD_VER > 11
929 #define _LIBCPP_DEPRECATED [[deprecated]]
931 #define _LIBCPP_DEPRECATED
934 #if _LIBCPP_STD_VER <= 11
935 #define _LIBCPP_EXPLICIT_AFTER_CXX11
936 #define _LIBCPP_DEPRECATED_AFTER_CXX11
938 #define _LIBCPP_EXPLICIT_AFTER_CXX11 explicit
939 #define _LIBCPP_DEPRECATED_AFTER_CXX11 [[deprecated]]
942 #if _LIBCPP_STD_VER > 11 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR)
943 #define _LIBCPP_CONSTEXPR_AFTER_CXX11 constexpr
945 #define _LIBCPP_CONSTEXPR_AFTER_CXX11
948 #if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR)
949 #define _LIBCPP_CONSTEXPR_AFTER_CXX14 constexpr
951 #define _LIBCPP_CONSTEXPR_AFTER_CXX14
954 // FIXME: Remove all usages of this macro once compilers catch up.
955 #if !defined(__cpp_inline_variables) || (__cpp_inline_variables < 201606L)
956 # define _LIBCPP_HAS_NO_INLINE_VARIABLES
959 #ifdef _LIBCPP_HAS_NO_RVALUE_REFERENCES
960 # define _LIBCPP_EXPLICIT_MOVE(x) _VSTD::move(x)
962 # define _LIBCPP_EXPLICIT_MOVE(x) (x)
965 #ifndef _LIBCPP_HAS_NO_ASAN
966 _LIBCPP_FUNC_VIS extern "C" void __sanitizer_annotate_contiguous_container(
967 const void *, const void *, const void *, const void *);
970 // Try to find out if RTTI is disabled.
971 // g++ and cl.exe have RTTI on by default and define a macro when it is.
972 // g++ only defines the macro in 4.3.2 and onwards.
973 #if !defined(_LIBCPP_NO_RTTI)
974 # if defined(__GNUC__) && ((__GNUC__ >= 5) || (__GNUC__ == 4 && \
975 (__GNUC_MINOR__ >= 3 || __GNUC_PATCHLEVEL__ >= 2))) && !defined(__GXX_RTTI)
976 # define _LIBCPP_NO_RTTI
977 # elif defined(_LIBCPP_COMPILER_MSVC) && !defined(_CPPRTTI)
978 # define _LIBCPP_NO_RTTI
983 # define _LIBCPP_WEAK __attribute__((__weak__))
987 #if !defined(_LIBCPP_HAS_NO_THREADS) && \
988 !defined(_LIBCPP_HAS_THREAD_API_PTHREAD) && \
989 !defined(_LIBCPP_HAS_THREAD_API_WIN32) && \
990 !defined(_LIBCPP_HAS_THREAD_API_EXTERNAL)
991 # if defined(__FreeBSD__) || \
992 defined(__Fuchsia__) || \
993 defined(__NetBSD__) || \
994 defined(__linux__) || \
995 defined(__APPLE__) || \
996 defined(__CloudABI__) || \
997 defined(__sun__) || \
998 (defined(__MINGW32__) && __libcpp_has_include(<pthread.h>))
999 # define _LIBCPP_HAS_THREAD_API_PTHREAD
1000 # elif defined(_LIBCPP_WIN32API)
1001 # define _LIBCPP_HAS_THREAD_API_WIN32
1003 # error "No thread API"
1004 # endif // _LIBCPP_HAS_THREAD_API
1005 #endif // _LIBCPP_HAS_NO_THREADS
1007 #if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_PTHREAD)
1008 # error _LIBCPP_HAS_THREAD_API_PTHREAD may only be defined when \
1009 _LIBCPP_HAS_NO_THREADS is not defined.
1012 #if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_EXTERNAL)
1013 # error _LIBCPP_HAS_THREAD_API_EXTERNAL may not be defined when \
1014 _LIBCPP_HAS_NO_THREADS is defined.
1017 #if defined(_LIBCPP_HAS_NO_MONOTONIC_CLOCK) && !defined(_LIBCPP_HAS_NO_THREADS)
1018 # error _LIBCPP_HAS_NO_MONOTONIC_CLOCK may only be defined when \
1019 _LIBCPP_HAS_NO_THREADS is defined.
1022 // Systems that use capability-based security (FreeBSD with Capsicum,
1023 // Nuxi CloudABI) may only provide local filesystem access (using *at()).
1024 // Functions like open(), rename(), unlink() and stat() should not be
1025 // used, as they attempt to access the global filesystem namespace.
1027 #define _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE
1030 // CloudABI is intended for running networked services. Processes do not
1031 // have standard input and output channels.
1033 #define _LIBCPP_HAS_NO_STDIN
1034 #define _LIBCPP_HAS_NO_STDOUT
1037 #if defined(__BIONIC__) || defined(__CloudABI__) || \
1038 defined(__Fuchsia__) || defined(_LIBCPP_HAS_MUSL_LIBC)
1039 #define _LIBCPP_PROVIDES_DEFAULT_RUNE_TABLE
1042 // Thread-unsafe functions such as strtok() and localtime()
1043 // are not available.
1045 #define _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS
1048 #if __has_feature(cxx_atomic) || __has_extension(c_atomic) || __has_keyword(_Atomic)
1049 #define _LIBCPP_HAS_C_ATOMIC_IMP
1050 #elif _GNUC_VER > 407
1051 #define _LIBCPP_HAS_GCC_ATOMIC_IMP
1054 #if (!defined(_LIBCPP_HAS_C_ATOMIC_IMP) && !defined(_LIBCPP_HAS_GCC_ATOMIC_IMP)) \
1055 || defined(_LIBCPP_HAS_NO_THREADS)
1056 #define _LIBCPP_HAS_NO_ATOMIC_HEADER
1059 #ifndef _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK
1060 #define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK
1063 #if defined(_LIBCPP_ENABLE_THREAD_SAFETY_ANNOTATIONS)
1064 #if defined(__clang__) && __has_attribute(acquire_capability)
1065 // Work around the attribute handling in clang. When both __declspec and
1066 // __attribute__ are present, the processing goes awry preventing the definition
1068 #if !defined(_LIBCPP_OBJECT_FORMAT_COFF)
1069 #define _LIBCPP_HAS_THREAD_SAFETY_ANNOTATIONS
1074 #if __has_attribute(require_constant_initialization)
1075 #define _LIBCPP_SAFE_STATIC __attribute__((__require_constant_initialization__))
1077 #define _LIBCPP_SAFE_STATIC
1080 #if !__has_builtin(__builtin_addressof) && _GNUC_VER < 700
1081 # define _LIBCPP_HAS_NO_BUILTIN_ADDRESSOF
1084 #if !defined(_LIBCPP_HAS_NO_OFF_T_FUNCTIONS)
1085 #if defined(_LIBCPP_MSVCRT) || defined(_NEWLIB_VERSION)
1086 #define _LIBCPP_HAS_NO_OFF_T_FUNCTIONS
1090 #if __has_attribute(diagnose_if) && !defined(_LIBCPP_DISABLE_ADDITIONAL_DIAGNOSTICS)
1091 # define _LIBCPP_DIAGNOSE_WARNING(...) \
1092 __attribute__((diagnose_if(__VA_ARGS__, "warning")))
1093 # define _LIBCPP_DIAGNOSE_ERROR(...) \
1094 __attribute__((diagnose_if(__VA_ARGS__, "error")))
1096 # define _LIBCPP_DIAGNOSE_WARNING(...)
1097 # define _LIBCPP_DIAGNOSE_ERROR(...)
1100 #if __has_attribute(fallthough) || _GNUC_VER >= 700
1101 // Use a function like macro to imply that it must be followed by a semicolon
1102 #define _LIBCPP_FALLTHROUGH() __attribute__((__fallthrough__))
1104 #define _LIBCPP_FALLTHROUGH() ((void)0)
1107 #if defined(_LIBCPP_ABI_MICROSOFT) && \
1108 (defined(_LIBCPP_COMPILER_MSVC) || __has_declspec_attribute(empty_bases))
1109 # define _LIBCPP_DECLSPEC_EMPTY_BASES __declspec(empty_bases)
1111 # define _LIBCPP_DECLSPEC_EMPTY_BASES
1114 #if defined(_LIBCPP_ENABLE_CXX17_REMOVED_FEATURES)
1115 # define _LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR
1116 # define _LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS
1117 # define _LIBCPP_ENABLE_CXX17_REMOVED_RANDOM_SHUFFLE
1118 # define _LIBCPP_ENABLE_CXX17_REMOVED_BINDERS
1119 #endif // _LIBCPP_ENABLE_CXX17_REMOVED_FEATURES
1121 #if !defined(__cpp_deduction_guides) || __cpp_deduction_guides < 201611
1122 # define _LIBCPP_HAS_NO_DEDUCTION_GUIDES
1125 #if !__has_keyword(__is_aggregate) && (_GNUC_VER_NEW < 7001)
1126 # define _LIBCPP_HAS_NO_IS_AGGREGATE
1129 #if !defined(__cpp_coroutines) || __cpp_coroutines < 201703L
1130 # define _LIBCPP_HAS_NO_COROUTINES
1133 #endif // __cplusplus
1135 // Decide whether to use availability macros.
1136 #if !defined(_LIBCPP_BUILDING_LIBRARY) && \
1137 !defined(_LIBCPP_DISABLE_AVAILABILITY) && \
1138 __has_feature(attribute_availability_with_strict) && \
1139 __has_feature(attribute_availability_in_templates)
1141 #define _LIBCPP_USE_AVAILABILITY_APPLE
1145 // Define availability macros.
1146 #if defined(_LIBCPP_USE_AVAILABILITY_APPLE)
1147 #define _LIBCPP_AVAILABILITY_SHARED_MUTEX \
1148 __attribute__((availability(macosx,strict,introduced=10.12))) \
1149 __attribute__((availability(ios,strict,introduced=10.0))) \
1150 __attribute__((availability(tvos,strict,introduced=10.0))) \
1151 __attribute__((availability(watchos,strict,introduced=3.0)))
1152 #define _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS __attribute__((unavailable))
1153 #define _LIBCPP_AVAILABILITY_BAD_ARRAY_LENGTH __attribute__((unavailable))
1154 #define _LIBCPP_AVAILABILITY_UNCAUGHT_EXCEPTIONS \
1155 __attribute__((availability(macosx,strict,introduced=10.12))) \
1156 __attribute__((availability(ios,strict,introduced=10.0))) \
1157 __attribute__((availability(tvos,strict,introduced=10.0))) \
1158 __attribute__((availability(watchos,strict,introduced=3.0)))
1159 #define _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE \
1160 __attribute__((availability(macosx,strict,introduced=10.12))) \
1161 __attribute__((availability(ios,strict,introduced=10.0))) \
1162 __attribute__((availability(tvos,strict,introduced=10.0))) \
1163 __attribute__((availability(watchos,strict,introduced=3.0)))
1164 #define _LIBCPP_AVAILABILITY_FUTURE_ERROR \
1165 __attribute__((availability(ios,strict,introduced=6.0)))
1166 #define _LIBCPP_AVAILABILITY_TYPEINFO_VTABLE \
1167 __attribute__((availability(macosx,strict,introduced=10.9))) \
1168 __attribute__((availability(ios,strict,introduced=7.0)))
1169 #define _LIBCPP_AVAILABILITY_LOCALE_CATEGORY \
1170 __attribute__((availability(macosx,strict,introduced=10.9))) \
1171 __attribute__((availability(ios,strict,introduced=7.0)))
1172 #define _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR \
1173 __attribute__((availability(macosx,strict,introduced=10.9))) \
1174 __attribute__((availability(ios,strict,introduced=7.0)))
1176 #define _LIBCPP_AVAILABILITY_SHARED_MUTEX
1177 #define _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS
1178 #define _LIBCPP_AVAILABILITY_BAD_ARRAY_LENGTH
1179 #define _LIBCPP_AVAILABILITY_UNCAUGHT_EXCEPTIONS
1180 #define _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE
1181 #define _LIBCPP_AVAILABILITY_FUTURE_ERROR
1182 #define _LIBCPP_AVAILABILITY_TYPEINFO_VTABLE
1183 #define _LIBCPP_AVAILABILITY_LOCALE_CATEGORY
1184 #define _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR
1187 // Define availability that depends on _LIBCPP_NO_EXCEPTIONS.
1188 #ifdef _LIBCPP_NO_EXCEPTIONS
1189 #define _LIBCPP_AVAILABILITY_DYNARRAY
1190 #define _LIBCPP_AVAILABILITY_FUTURE
1192 #define _LIBCPP_AVAILABILITY_DYNARRAY _LIBCPP_AVAILABILITY_BAD_ARRAY_LENGTH
1193 #define _LIBCPP_AVAILABILITY_FUTURE _LIBCPP_AVAILABILITY_FUTURE_ERROR
1196 // Availability of stream API in the dylib got dropped and re-added. The
1197 // extern template should effectively be available at:
1198 // availability(macosx,introduced=10.9)
1199 // availability(ios,introduced=7.0)
1200 #if defined(_LIBCPP_USE_AVAILABILITY_APPLE) && \
1201 ((defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && \
1202 __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ <= 1090) || \
1203 (defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) && \
1204 __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ <= 70000))
1205 #define _LIBCPP_AVAILABILITY_NO_STREAMS_EXTERN_TEMPLATE
1208 #endif // _LIBCPP_CONFIG