__config revision 262801 
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 _LIBCPP_TYPE_VIS
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 __has_feature(cxx_alignas)
207#  define _ALIGNAS_TYPE(x) alignas(x)
208#  define _ALIGNAS(x) alignas(x)
209#else
210#  define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x))))
211#  define _ALIGNAS(x) __attribute__((__aligned__(x)))
212#endif
213
214#if !__has_feature(cxx_alias_templates)
215#define _LIBCPP_HAS_NO_TEMPLATE_ALIASES
216#endif
217
218#ifndef __GXX_EXPERIMENTAL_CXX0X__
219#ifdef __linux__
220#define _LIBCPP_HAS_NO_UNICODE_CHARS
221#else
222typedef __char16_t char16_t;
223typedef __char32_t char32_t;
224#endif
225#endif
226
227#if !(__has_feature(cxx_exceptions))
228#define _LIBCPP_NO_EXCEPTIONS
229#endif
230
231#if !(__has_feature(cxx_rtti))
232#define _LIBCPP_NO_RTTI
233#endif
234
235#if !(__has_feature(cxx_strong_enums))
236#define _LIBCPP_HAS_NO_STRONG_ENUMS
237#endif
238
239#if !(__has_feature(cxx_decltype))
240#define _LIBCPP_HAS_NO_DECLTYPE
241#endif
242
243#if __has_feature(cxx_attributes)
244#  define _LIBCPP_NORETURN [[noreturn]]
245#else
246#  define _LIBCPP_NORETURN __attribute__ ((noreturn))
247#endif
248
249#if !(__has_feature(cxx_defaulted_functions))
250#define _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
251#endif  // !(__has_feature(cxx_defaulted_functions))
252
253#if !(__has_feature(cxx_deleted_functions))
254#define _LIBCPP_HAS_NO_DELETED_FUNCTIONS
255#endif  // !(__has_feature(cxx_deleted_functions))
256
257#if !(__has_feature(cxx_lambdas))
258#define _LIBCPP_HAS_NO_LAMBDAS
259#endif
260
261#if !(__has_feature(cxx_nullptr))
262#define _LIBCPP_HAS_NO_NULLPTR
263#endif
264
265#if !(__has_feature(cxx_rvalue_references))
266#define _LIBCPP_HAS_NO_RVALUE_REFERENCES
267#endif
268
269#if !(__has_feature(cxx_static_assert))
270#define _LIBCPP_HAS_NO_STATIC_ASSERT
271#endif
272
273#if !(__has_feature(cxx_auto_type))
274#define _LIBCPP_HAS_NO_AUTO_TYPE
275#endif
276
277#if !(__has_feature(cxx_access_control_sfinae)) || !__has_feature(cxx_trailing_return)
278#define _LIBCPP_HAS_NO_ADVANCED_SFINAE
279#endif
280
281#if !(__has_feature(cxx_variadic_templates))
282#define _LIBCPP_HAS_NO_VARIADICS
283#endif
284
285#if !(__has_feature(cxx_trailing_return))
286#define _LIBCPP_HAS_NO_TRAILING_RETURN
287#endif
288
289#if !(__has_feature(cxx_generalized_initializers))
290#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
291#endif
292
293#if __has_feature(is_base_of)
294#  define _LIBCPP_HAS_IS_BASE_OF
295#endif
296
297// Objective-C++ features (opt-in)
298#if __has_feature(objc_arc)
299#define _LIBCPP_HAS_OBJC_ARC
300#endif
301
302#if __has_feature(objc_arc_weak)
303#define _LIBCPP_HAS_OBJC_ARC_WEAK
304#define _LIBCPP_HAS_NO_STRONG_ENUMS
305#endif
306
307#if !(__has_feature(cxx_constexpr))
308#define _LIBCPP_HAS_NO_CONSTEXPR
309#endif
310
311#if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L
312#if defined(__FreeBSD__)
313#define _LIBCPP_HAS_QUICK_EXIT
314#define _LIBCPP_HAS_C11_FEATURES
315#elif defined(__linux__)
316#include <features.h>
317#if __GLIBC_PREREQ(2, 15)
318#define _LIBCPP_HAS_QUICK_EXIT
319#endif
320#if __GLIBC_PREREQ(2, 17)
321#define _LIBCPP_HAS_C11_FEATURES
322#endif
323#endif
324#endif
325
326#if (__has_feature(cxx_noexcept))
327#  define _NOEXCEPT noexcept
328#  define _NOEXCEPT_(x) noexcept(x)
329#else
330#  define _NOEXCEPT throw()
331#  define _NOEXCEPT_(x)
332#endif
333
334#if __has_feature(underlying_type)
335#  define _LIBCXX_UNDERLYING_TYPE(T) __underlying_type(T)
336#endif
337
338// Inline namespaces are available in Clang regardless of C++ dialect.
339#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE {
340#define _LIBCPP_END_NAMESPACE_STD  } }
341#define _VSTD std::_LIBCPP_NAMESPACE
342
343namespace std {
344  inline namespace _LIBCPP_NAMESPACE {
345  }
346}
347
348#elif defined(__GNUC__)
349
350#define _ALIGNAS(x) __attribute__((__aligned__(x)))
351#define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x))))
352
353#define _LIBCPP_NORETURN __attribute__((noreturn))
354
355#if !__EXCEPTIONS
356#define _LIBCPP_NO_EXCEPTIONS
357#endif
358
359#define _LIBCPP_HAS_NO_TEMPLATE_ALIASES
360#define _LIBCPP_HAS_NO_CONSTEXPR
361
362#define _NOEXCEPT throw()
363#define _NOEXCEPT_(x)
364
365#ifndef __GXX_EXPERIMENTAL_CXX0X__
366
367#define _LIBCPP_HAS_NO_ADVANCED_SFINAE
368#define _LIBCPP_HAS_NO_DECLTYPE
369#define _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
370#define _LIBCPP_HAS_NO_DELETED_FUNCTIONS
371#define _LIBCPP_HAS_NO_NULLPTR
372#define _LIBCPP_HAS_NO_STATIC_ASSERT
373#define _LIBCPP_HAS_NO_UNICODE_CHARS
374#define _LIBCPP_HAS_NO_VARIADICS
375#define _LIBCPP_HAS_NO_RVALUE_REFERENCES
376#define _LIBCPP_HAS_NO_ALWAYS_INLINE_VARIADICS
377
378#else  // __GXX_EXPERIMENTAL_CXX0X__
379
380#define _LIBCPP_HAS_NO_TRAILING_RETURN
381#define _LIBCPP_HAS_NO_ALWAYS_INLINE_VARIADICS
382
383#if _GNUC_VER < 403
384#define _LIBCPP_HAS_NO_RVALUE_REFERENCES
385#endif
386
387#if _GNUC_VER < 403
388#define _LIBCPP_HAS_NO_STATIC_ASSERT
389#endif
390
391#if _GNUC_VER < 404
392#define _LIBCPP_HAS_NO_ADVANCED_SFINAE
393#define _LIBCPP_HAS_NO_DECLTYPE
394#define _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
395#define _LIBCPP_HAS_NO_DELETED_FUNCTIONS
396#define _LIBCPP_HAS_NO_UNICODE_CHARS
397#define _LIBCPP_HAS_NO_VARIADICS
398#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
399#endif  // _GNUC_VER < 404
400
401#if _GNUC_VER < 406
402#define _LIBCPP_HAS_NO_NULLPTR
403#endif
404
405#endif  // __GXX_EXPERIMENTAL_CXX0X__
406
407#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { namespace _LIBCPP_NAMESPACE {
408#define _LIBCPP_END_NAMESPACE_STD  } }
409#define _VSTD std::_LIBCPP_NAMESPACE
410
411namespace std {
412namespace _LIBCPP_NAMESPACE {
413}
414using namespace _LIBCPP_NAMESPACE __attribute__((__strong__));
415}
416
417#elif defined(_LIBCPP_MSVC)
418
419#define _LIBCPP_HAS_NO_TEMPLATE_ALIASES
420#define _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER
421#define _LIBCPP_HAS_NO_CONSTEXPR
422#define _LIBCPP_HAS_NO_UNICODE_CHARS
423#define _LIBCPP_HAS_NO_DELETED_FUNCTIONS
424#define _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
425#define __alignof__ __alignof
426#define _LIBCPP_NORETURN __declspec(noreturn)
427#define _ALIGNAS(x) __declspec(align(x))
428#define _LIBCPP_HAS_NO_VARIADICS
429
430#define _NOEXCEPT throw()
431#define _NOEXCEPT_(x)
432
433#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {
434#define _LIBCPP_END_NAMESPACE_STD  }
435#define _VSTD std
436
437#  define _LIBCPP_WEAK
438namespace std {
439}
440
441#elif defined(__IBMCPP__)
442
443#define _ALIGNAS(x) __attribute__((__aligned__(x)))
444#define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x))))
445#define _ATTRIBUTE(x) __attribute__((x))
446#define _LIBCPP_NORETURN __attribute__((noreturn))
447
448#define _NOEXCEPT throw()
449#define _NOEXCEPT_(x)
450
451#define _LIBCPP_HAS_NO_TEMPLATE_ALIASES
452#define _LIBCPP_HAS_NO_ADVANCED_SFINAE
453#define _LIBCPP_HAS_NO_ALWAYS_INLINE_VARIADICS
454#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
455#define _LIBCPP_HAS_NO_NULLPTR
456#define _LIBCPP_HAS_NO_UNICODE_CHARS
457#define _LIBCPP_HAS_NO_STRONG_ENUMS
458#define _LIBCPP_HAS_IS_BASE_OF
459
460#if defined(_AIX)
461#define __MULTILOCALE_API
462#endif
463
464#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE {
465#define _LIBCPP_END_NAMESPACE_STD  } }
466#define _VSTD std::_LIBCPP_NAMESPACE
467
468namespace std {
469  inline namespace _LIBCPP_NAMESPACE {
470  }
471}
472
473#endif // __clang__ || __GNUC___ || _MSC_VER || __IBMCPP__
474
475#ifdef _LIBCPP_HAS_NO_UNICODE_CHARS
476typedef unsigned short char16_t;
477typedef unsigned int   char32_t;
478#endif  // _LIBCPP_HAS_NO_UNICODE_CHARS
479
480#ifdef _LIBCPP_HAS_NO_STATIC_ASSERT
481
482template <bool> struct __static_assert_test;
483template <> struct __static_assert_test<true> {};
484template <unsigned> struct __static_assert_check {};
485#define static_assert(__b, __m) \
486    typedef __static_assert_check<sizeof(__static_assert_test<(__b)>)> \
487    _LIBCPP_CONCAT(__t, __LINE__)
488
489#endif  // _LIBCPP_HAS_NO_STATIC_ASSERT
490
491#ifdef _LIBCPP_HAS_NO_DECLTYPE
492#define decltype(x) __typeof__(x)
493#endif
494
495#ifdef _LIBCPP_HAS_NO_CONSTEXPR
496#define _LIBCPP_CONSTEXPR
497#else
498#define _LIBCPP_CONSTEXPR constexpr
499#endif
500
501#ifdef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
502#define _LIBCPP_DEFAULT {}
503#else
504#define _LIBCPP_DEFAULT = default;
505#endif
506
507#ifdef __GNUC__
508#define _NOALIAS __attribute__((__malloc__))
509#else
510#define _NOALIAS
511#endif
512
513#ifndef __has_feature
514#define __has_feature(__x) 0
515#endif
516
517#if __has_feature(cxx_explicit_conversions)
518#   define _LIBCPP_EXPLICIT explicit
519#else
520#   define _LIBCPP_EXPLICIT
521#endif
522
523#ifdef _LIBCPP_HAS_NO_STRONG_ENUMS
524#define _LIBCPP_DECLARE_STRONG_ENUM(x) struct _LIBCPP_TYPE_VIS x { enum __lx
525#define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) \
526    __lx __v_; \
527    _LIBCPP_ALWAYS_INLINE x(__lx __v) : __v_(__v) {} \
528    _LIBCPP_ALWAYS_INLINE explicit x(int __v) : __v_(static_cast<__lx>(__v)) {} \
529    _LIBCPP_ALWAYS_INLINE operator int() const {return __v_;} \
530    };
531#else  // _LIBCPP_HAS_NO_STRONG_ENUMS
532#define _LIBCPP_DECLARE_STRONG_ENUM(x) enum class _LIBCPP_TYPE_VIS x
533#define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x)
534#endif  // _LIBCPP_HAS_NO_STRONG_ENUMS
535
536#ifdef _LIBCPP_DEBUG
537#   if _LIBCPP_DEBUG == 0
538#       define _LIBCPP_DEBUG_LEVEL 1
539#   elif _LIBCPP_DEBUG == 1
540#       define _LIBCPP_DEBUG_LEVEL 2
541#   else
542#       error Supported values for _LIBCPP_DEBUG are 0 and 1
543#   endif
544#   define _LIBCPP_EXTERN_TEMPLATE(...)
545#endif
546
547#ifndef _LIBCPP_EXTERN_TEMPLATE
548#define _LIBCPP_EXTERN_TEMPLATE(...)
549#endif
550
551#ifndef _LIBCPP_EXTERN_TEMPLATE2
552#define _LIBCPP_EXTERN_TEMPLATE2(...) extern template __VA_ARGS__;
553#endif
554
555#if defined(__APPLE__) || defined(__FreeBSD__) || defined(_WIN32) || defined(__sun__) || defined(__NetBSD__)
556#define _LIBCPP_LOCALE__L_EXTENSIONS 1
557#endif
558#ifdef __FreeBSD__
559#define _DECLARE_C99_LDBL_MATH 1
560#endif
561
562#if defined(__APPLE__) || defined(__FreeBSD__)
563#define _LIBCPP_HAS_DEFAULTRUNELOCALE
564#endif
565
566#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__sun__)
567#define _LIBCPP_WCTYPE_IS_MASK
568#endif
569
570#if defined(__APPLE__) || defined(__FreeBSD__)
571#ifndef _LIBCPP_TRIVIAL_PAIR_COPY_CTOR
572#  define _LIBCPP_TRIVIAL_PAIR_COPY_CTOR 0
573#endif
574#endif
575
576#ifndef _LIBCPP_TRIVIAL_PAIR_COPY_CTOR
577#  define _LIBCPP_TRIVIAL_PAIR_COPY_CTOR 1
578#endif
579
580#ifndef _LIBCPP_STD_VER
581#  if  __cplusplus <= 201103L
582#    define _LIBCPP_STD_VER 11
583#  else
584#    define _LIBCPP_STD_VER 13  // current year, or date of c++14 ratification
585#  endif
586#endif  // _LIBCPP_STD_VER
587
588#if _LIBCPP_STD_VER > 11
589#define _LIBCPP_DEPRECATED [[deprecated]]
590#else
591#define _LIBCPP_DEPRECATED
592#endif
593
594#if _LIBCPP_STD_VER <= 11
595#define _LIBCPP_CONSTEXPR_AFTER_CXX11
596#define _LIBCPP_EXPLICIT_AFTER_CXX11
597#define _LIBCPP_DEPRECATED_AFTER_CXX11
598#else
599#define _LIBCPP_CONSTEXPR_AFTER_CXX11 constexpr
600#define _LIBCPP_EXPLICIT_AFTER_CXX11 explicit
601#define _LIBCPP_DEPRECATED_AFTER_CXX11 [[deprecated]]
602#endif
603
604// Try to find out if RTTI is disabled.
605// g++ and cl.exe have RTTI on by default and define a macro when it is.
606// g++ only defines the macro in 4.3.2 and onwards.
607#if !defined(_LIBCPP_NO_RTTI)
608#  if defined(__GNUG__) && (__GNUC__ >= 4 && \
609   (__GNUC_MINOR__ >= 3 || __GNUC_PATCHLEVEL__ >= 2)) && !defined(__GXX_RTTI)
610#    define _LIBCPP_NO_RTTI
611#  elif (defined(_MSC_VER) && !defined(__clang__)) && !defined(_CPPRTTI)
612#    define _LIBCPP_NO_RTTI
613#  endif
614#endif
615
616#ifndef _LIBCPP_WEAK
617#  define _LIBCPP_WEAK __attribute__((__weak__))
618#endif
619
620#endif  // _LIBCPP_CONFIG
621