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#endif
195
196#ifndef _LIBCPP_EXCEPTION_ABI
197#define _LIBCPP_EXCEPTION_ABI __attribute__ ((__visibility__("default")))
198#endif
199
200#ifndef _LIBCPP_ALWAYS_INLINE
201#define _LIBCPP_ALWAYS_INLINE  __attribute__ ((__visibility__("hidden"), __always_inline__))
202#endif
203
204#if defined(__clang__)
205
206#if defined(__APPLE__) && !defined(__i386__) && !defined(__x86_64__) &&        \
207    !defined(__arm__)
208#define _LIBCPP_ALTERNATE_STRING_LAYOUT
209#endif
210
211#if __has_feature(cxx_alignas)
212#  define _ALIGNAS_TYPE(x) alignas(x)
213#  define _ALIGNAS(x) alignas(x)
214#else
215#  define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x))))
216#  define _ALIGNAS(x) __attribute__((__aligned__(x)))
217#endif
218
219#if !__has_feature(cxx_alias_templates)
220#define _LIBCPP_HAS_NO_TEMPLATE_ALIASES
221#endif
222
223#if __cplusplus < 201103L
224#ifdef __linux__
225#define _LIBCPP_HAS_NO_UNICODE_CHARS
226#else
227typedef __char16_t char16_t;
228typedef __char32_t char32_t;
229#endif
230#endif
231
232#if !(__has_feature(cxx_exceptions))
233#define _LIBCPP_NO_EXCEPTIONS
234#endif
235
236#if !(__has_feature(cxx_rtti))
237#define _LIBCPP_NO_RTTI
238#endif
239
240#if !(__has_feature(cxx_strong_enums))
241#define _LIBCPP_HAS_NO_STRONG_ENUMS
242#endif
243
244#if !(__has_feature(cxx_decltype))
245#define _LIBCPP_HAS_NO_DECLTYPE
246#endif
247
248#if __has_feature(cxx_attributes)
249#  define _LIBCPP_NORETURN [[noreturn]]
250#else
251#  define _LIBCPP_NORETURN __attribute__ ((noreturn))
252#endif
253
254#if !(__has_feature(cxx_defaulted_functions))
255#define _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
256#endif  // !(__has_feature(cxx_defaulted_functions))
257
258#if !(__has_feature(cxx_deleted_functions))
259#define _LIBCPP_HAS_NO_DELETED_FUNCTIONS
260#endif  // !(__has_feature(cxx_deleted_functions))
261
262#if !(__has_feature(cxx_lambdas))
263#define _LIBCPP_HAS_NO_LAMBDAS
264#endif
265
266#if !(__has_feature(cxx_nullptr))
267#define _LIBCPP_HAS_NO_NULLPTR
268#endif
269
270#if !(__has_feature(cxx_rvalue_references))
271#define _LIBCPP_HAS_NO_RVALUE_REFERENCES
272#endif
273
274#if !(__has_feature(cxx_static_assert))
275#define _LIBCPP_HAS_NO_STATIC_ASSERT
276#endif
277
278#if !(__has_feature(cxx_auto_type))
279#define _LIBCPP_HAS_NO_AUTO_TYPE
280#endif
281
282#if !(__has_feature(cxx_access_control_sfinae)) || !__has_feature(cxx_trailing_return)
283#define _LIBCPP_HAS_NO_ADVANCED_SFINAE
284#endif
285
286#if !(__has_feature(cxx_variadic_templates))
287#define _LIBCPP_HAS_NO_VARIADICS
288#endif
289
290#if !(__has_feature(cxx_trailing_return))
291#define _LIBCPP_HAS_NO_TRAILING_RETURN
292#endif
293
294#if !(__has_feature(cxx_generalized_initializers))
295#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
296#endif
297
298#if __has_feature(is_base_of)
299#  define _LIBCPP_HAS_IS_BASE_OF
300#endif
301
302// Objective-C++ features (opt-in)
303#if __has_feature(objc_arc)
304#define _LIBCPP_HAS_OBJC_ARC
305#endif
306
307#if __has_feature(objc_arc_weak)
308#define _LIBCPP_HAS_OBJC_ARC_WEAK
309#define _LIBCPP_HAS_NO_STRONG_ENUMS
310#endif
311
312#if !(__has_feature(cxx_constexpr))
313#define _LIBCPP_HAS_NO_CONSTEXPR
314#endif
315
316#if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L
317#if defined(__FreeBSD__)
318#define _LIBCPP_HAS_QUICK_EXIT
319#define _LIBCPP_HAS_C11_FEATURES
320#elif defined(__linux__)
321#include <features.h>
322#if __GLIBC_PREREQ(2, 15)
323#define _LIBCPP_HAS_QUICK_EXIT
324#endif
325#if __GLIBC_PREREQ(2, 17)
326#define _LIBCPP_HAS_C11_FEATURES
327#endif
328#endif
329#endif
330
331#if (__has_feature(cxx_noexcept))
332#  define _NOEXCEPT noexcept
333#  define _NOEXCEPT_(x) noexcept(x)
334#  define _NOEXCEPT_OR_FALSE(x) noexcept(x)
335#else
336#  define _NOEXCEPT throw()
337#  define _NOEXCEPT_(x)
338#  define _NOEXCEPT_OR_FALSE(x) false
339#endif
340
341#if __has_feature(underlying_type)
342#  define _LIBCXX_UNDERLYING_TYPE(T) __underlying_type(T)
343#endif
344
345// Inline namespaces are available in Clang regardless of C++ dialect.
346#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE {
347#define _LIBCPP_END_NAMESPACE_STD  } }
348#define _VSTD std::_LIBCPP_NAMESPACE
349
350namespace std {
351  inline namespace _LIBCPP_NAMESPACE {
352  }
353}
354
355#if !defined(_LIBCPP_HAS_NO_ASAN) && !__has_feature(address_sanitizer)
356#define _LIBCPP_HAS_NO_ASAN
357#endif
358
359#elif defined(__GNUC__)
360
361#define _ALIGNAS(x) __attribute__((__aligned__(x)))
362#define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x))))
363
364#define _LIBCPP_NORETURN __attribute__((noreturn))
365
366#if !__EXCEPTIONS
367#define _LIBCPP_NO_EXCEPTIONS
368#endif
369
370#define _LIBCPP_HAS_NO_TEMPLATE_ALIASES
371#define _LIBCPP_HAS_NO_CONSTEXPR
372
373#define _NOEXCEPT throw()
374#define _NOEXCEPT_(x)
375#define _NOEXCEPT_OR_FALSE(x) false
376
377#ifndef __GXX_EXPERIMENTAL_CXX0X__
378
379#define _LIBCPP_HAS_NO_ADVANCED_SFINAE
380#define _LIBCPP_HAS_NO_DECLTYPE
381#define _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
382#define _LIBCPP_HAS_NO_DELETED_FUNCTIONS
383#define _LIBCPP_HAS_NO_NULLPTR
384#define _LIBCPP_HAS_NO_STATIC_ASSERT
385#define _LIBCPP_HAS_NO_UNICODE_CHARS
386#define _LIBCPP_HAS_NO_VARIADICS
387#define _LIBCPP_HAS_NO_RVALUE_REFERENCES
388#define _LIBCPP_HAS_NO_ALWAYS_INLINE_VARIADICS
389#define _LIBCPP_HAS_NO_STRONG_ENUMS
390
391#else  // __GXX_EXPERIMENTAL_CXX0X__
392
393#define _LIBCPP_HAS_NO_TRAILING_RETURN
394#define _LIBCPP_HAS_NO_ALWAYS_INLINE_VARIADICS
395
396#if _GNUC_VER < 403
397#define _LIBCPP_HAS_NO_RVALUE_REFERENCES
398#endif
399
400#if _GNUC_VER < 403
401#define _LIBCPP_HAS_NO_STATIC_ASSERT
402#endif
403
404#if _GNUC_VER < 404
405#define _LIBCPP_HAS_NO_DECLTYPE
406#define _LIBCPP_HAS_NO_DELETED_FUNCTIONS
407#define _LIBCPP_HAS_NO_UNICODE_CHARS
408#define _LIBCPP_HAS_NO_VARIADICS
409#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
410#endif  // _GNUC_VER < 404
411
412#if _GNUC_VER < 406
413#define _LIBCPP_HAS_NO_NULLPTR
414#endif
415
416#if _GNUC_VER < 407
417#define _LIBCPP_HAS_NO_ADVANCED_SFINAE
418#define _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
419#endif
420
421#endif  // __GXX_EXPERIMENTAL_CXX0X__
422
423#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { namespace _LIBCPP_NAMESPACE {
424#define _LIBCPP_END_NAMESPACE_STD  } }
425#define _VSTD std::_LIBCPP_NAMESPACE
426
427namespace std {
428namespace _LIBCPP_NAMESPACE {
429}
430using namespace _LIBCPP_NAMESPACE __attribute__((__strong__));
431}
432
433#if !defined(_LIBCPP_HAS_NO_ASAN) && !defined(__SANITIZE_ADDRESS__)
434#define _LIBCPP_HAS_NO_ASAN
435#endif
436
437#elif defined(_LIBCPP_MSVC)
438
439#define _LIBCPP_HAS_NO_TEMPLATE_ALIASES
440#define _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER
441#define _LIBCPP_HAS_NO_CONSTEXPR
442#define _LIBCPP_HAS_NO_UNICODE_CHARS
443#define _LIBCPP_HAS_NO_DELETED_FUNCTIONS
444#define _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
445#define __alignof__ __alignof
446#define _LIBCPP_NORETURN __declspec(noreturn)
447#define _ALIGNAS(x) __declspec(align(x))
448#define _LIBCPP_HAS_NO_VARIADICS
449
450#define _NOEXCEPT throw ()
451#define _NOEXCEPT_(x)
452#define _NOEXCEPT_OR_FALSE(x) false
453
454#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {
455#define _LIBCPP_END_NAMESPACE_STD  }
456#define _VSTD std
457
458#  define _LIBCPP_WEAK
459namespace std {
460}
461
462#define _LIBCPP_HAS_NO_ASAN
463
464#elif defined(__IBMCPP__)
465
466#define _ALIGNAS(x) __attribute__((__aligned__(x)))
467#define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x))))
468#define _ATTRIBUTE(x) __attribute__((x))
469#define _LIBCPP_NORETURN __attribute__((noreturn))
470
471#define _NOEXCEPT throw()
472#define _NOEXCEPT_(x)
473#define _NOEXCEPT_OR_FALSE(x) false
474
475#define _LIBCPP_HAS_NO_TEMPLATE_ALIASES
476#define _LIBCPP_HAS_NO_ADVANCED_SFINAE
477#define _LIBCPP_HAS_NO_ALWAYS_INLINE_VARIADICS
478#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
479#define _LIBCPP_HAS_NO_NULLPTR
480#define _LIBCPP_HAS_NO_UNICODE_CHARS
481#define _LIBCPP_HAS_IS_BASE_OF
482
483#if defined(_AIX)
484#define __MULTILOCALE_API
485#endif
486
487#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE {
488#define _LIBCPP_END_NAMESPACE_STD  } }
489#define _VSTD std::_LIBCPP_NAMESPACE
490
491namespace std {
492  inline namespace _LIBCPP_NAMESPACE {
493  }
494}
495
496#define _LIBCPP_HAS_NO_ASAN
497
498#endif // __clang__ || __GNUC__ || _MSC_VER || __IBMCPP__
499
500#ifdef _LIBCPP_HAS_NO_UNICODE_CHARS
501typedef unsigned short char16_t;
502typedef unsigned int   char32_t;
503#endif  // _LIBCPP_HAS_NO_UNICODE_CHARS
504
505#ifndef __SIZEOF_INT128__
506#define _LIBCPP_HAS_NO_INT128
507#endif
508
509#ifdef _LIBCPP_HAS_NO_STATIC_ASSERT
510
511template <bool> struct __static_assert_test;
512template <> struct __static_assert_test<true> {};
513template <unsigned> struct __static_assert_check {};
514#define static_assert(__b, __m) \
515    typedef __static_assert_check<sizeof(__static_assert_test<(__b)>)> \
516    _LIBCPP_CONCAT(__t, __LINE__)
517
518#endif  // _LIBCPP_HAS_NO_STATIC_ASSERT
519
520#ifdef _LIBCPP_HAS_NO_DECLTYPE
521#define decltype(x) __typeof__(x)
522#endif
523
524#ifdef _LIBCPP_HAS_NO_CONSTEXPR
525#define _LIBCPP_CONSTEXPR
526#else
527#define _LIBCPP_CONSTEXPR constexpr
528#endif
529
530#ifdef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
531#define _LIBCPP_DEFAULT {}
532#else
533#define _LIBCPP_DEFAULT = default;
534#endif
535
536#ifdef __GNUC__
537#define _NOALIAS __attribute__((__malloc__))
538#else
539#define _NOALIAS
540#endif
541
542#ifndef __has_feature
543#define __has_feature(__x) 0
544#endif
545
546#if __has_feature(cxx_explicit_conversions) || defined(__IBMCPP__)
547#   define _LIBCPP_EXPLICIT explicit
548#else
549#   define _LIBCPP_EXPLICIT
550#endif
551
552#ifdef _LIBCPP_HAS_NO_STRONG_ENUMS
553#define _LIBCPP_DECLARE_STRONG_ENUM(x) struct _LIBCPP_TYPE_VIS x { enum __lx
554#define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) \
555    __lx __v_; \
556    _LIBCPP_ALWAYS_INLINE x(__lx __v) : __v_(__v) {} \
557    _LIBCPP_ALWAYS_INLINE explicit x(int __v) : __v_(static_cast<__lx>(__v)) {} \
558    _LIBCPP_ALWAYS_INLINE operator int() const {return __v_;} \
559    };
560#else  // _LIBCPP_HAS_NO_STRONG_ENUMS
561#define _LIBCPP_DECLARE_STRONG_ENUM(x) enum class _LIBCPP_TYPE_VIS x
562#define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x)
563#endif  // _LIBCPP_HAS_NO_STRONG_ENUMS
564
565#ifdef _LIBCPP_DEBUG
566#   if _LIBCPP_DEBUG == 0
567#       define _LIBCPP_DEBUG_LEVEL 1
568#   elif _LIBCPP_DEBUG == 1
569#       define _LIBCPP_DEBUG_LEVEL 2
570#   else
571#       error Supported values for _LIBCPP_DEBUG are 0 and 1
572#   endif
573#   define _LIBCPP_EXTERN_TEMPLATE(...)
574#endif
575
576#ifndef _LIBCPP_EXTERN_TEMPLATE
577#define _LIBCPP_EXTERN_TEMPLATE(...)
578#endif
579
580#ifndef _LIBCPP_EXTERN_TEMPLATE2
581#define _LIBCPP_EXTERN_TEMPLATE2(...) extern template __VA_ARGS__;
582#endif
583
584#if defined(__APPLE__) && defined(__LP64__) && !defined(__x86_64__)
585#define _LIBCPP_NONUNIQUE_RTTI_BIT (1ULL << 63)
586#endif
587
588#if defined(__APPLE__) || defined(__FreeBSD__) || defined(_WIN32) || defined(__sun__) || defined(__NetBSD__)
589#define _LIBCPP_LOCALE__L_EXTENSIONS 1
590#endif
591
592#ifdef __FreeBSD__
593#define _DECLARE_C99_LDBL_MATH 1
594#endif
595
596#if defined(__APPLE__) || defined(__FreeBSD__)
597#define _LIBCPP_HAS_DEFAULTRUNELOCALE
598#endif
599
600#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__sun__)
601#define _LIBCPP_WCTYPE_IS_MASK
602#endif
603
604#ifndef _LIBCPP_TRIVIAL_PAIR_COPY_CTOR
605#  define _LIBCPP_TRIVIAL_PAIR_COPY_CTOR 1
606#endif
607
608#ifndef _LIBCPP_STD_VER
609#  if  __cplusplus <= 201103L
610#    define _LIBCPP_STD_VER 11
611#  else
612#    define _LIBCPP_STD_VER 13  // current year, or date of c++14 ratification
613#  endif
614#endif  // _LIBCPP_STD_VER
615
616#if _LIBCPP_STD_VER > 11
617#define _LIBCPP_DEPRECATED [[deprecated]]
618#else
619#define _LIBCPP_DEPRECATED
620#endif
621
622#if _LIBCPP_STD_VER <= 11
623#define _LIBCPP_CONSTEXPR_AFTER_CXX11
624#define _LIBCPP_EXPLICIT_AFTER_CXX11
625#define _LIBCPP_DEPRECATED_AFTER_CXX11
626#else
627#define _LIBCPP_CONSTEXPR_AFTER_CXX11 constexpr
628#define _LIBCPP_EXPLICIT_AFTER_CXX11 explicit
629#define _LIBCPP_DEPRECATED_AFTER_CXX11 [[deprecated]]
630#endif
631
632// Try to find out if RTTI is disabled.
633// g++ and cl.exe have RTTI on by default and define a macro when it is.
634// g++ only defines the macro in 4.3.2 and onwards.
635#if !defined(_LIBCPP_NO_RTTI)
636#  if defined(__GNUG__) && (__GNUC__ >= 4 && \
637   (__GNUC_MINOR__ >= 3 || __GNUC_PATCHLEVEL__ >= 2)) && !defined(__GXX_RTTI)
638#    define _LIBCPP_NO_RTTI
639#  elif (defined(_MSC_VER) && !defined(__clang__)) && !defined(_CPPRTTI)
640#    define _LIBCPP_NO_RTTI
641#  endif
642#endif
643
644#ifndef _LIBCPP_WEAK
645#  define _LIBCPP_WEAK __attribute__((__weak__))
646#endif
647
648#endif  // _LIBCPP_CONFIG
649