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Howard Hinnantc51e1022010-05-11 19:42:16 +00001// -*- C++ -*-
2//===--------------------------- __config ---------------------------------===//
3//
Howard Hinnantc566dc32010-05-11 21:36:01 +00004// The LLVM Compiler Infrastructure
Howard Hinnantc51e1022010-05-11 19:42:16 +00005//
Howard Hinnantee11c312010-11-16 22:09:02 +00006// This file is dual licensed under the MIT and the University of Illinois Open
7// Source Licenses. See LICENSE.TXT for details.
Howard Hinnantc51e1022010-05-11 19:42:16 +00008//
9//===----------------------------------------------------------------------===//
10
11#ifndef _LIBCPP_CONFIG
12#define _LIBCPP_CONFIG
13
Eric Fiseliera80af822015-11-06 06:30:12 +000014#if defined(_MSC_VER) && !defined(__clang__)
15#define _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER
16#endif
17
18#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER
Howard Hinnantc51e1022010-05-11 19:42:16 +000019#pragma GCC system_header
Howard Hinnantaaaa52b2011-10-17 20:05:10 +000020#endif
Howard Hinnantc51e1022010-05-11 19:42:16 +000021
Eric Fiseliera80af822015-11-06 06:30:12 +000022#ifdef __cplusplus
23
Howard Hinnantcafe7172012-10-03 20:48:05 +000024#ifdef __GNUC__
25#define _GNUC_VER (__GNUC__ * 100 + __GNUC_MINOR__)
Eric Fiselier7d223172015-06-13 02:18:44 +000026#else
27#define _GNUC_VER 0
Howard Hinnantcafe7172012-10-03 20:48:05 +000028#endif
29
Marshall Clowe8ff2d92016-07-18 20:27:19 +000030#define _LIBCPP_VERSION 4000
Howard Hinnantc51e1022010-05-11 19:42:16 +000031
Evgeniy Stepanovda2ff7e2015-10-13 23:48:28 +000032#ifndef _LIBCPP_ABI_VERSION
Howard Hinnantc51e1022010-05-11 19:42:16 +000033#define _LIBCPP_ABI_VERSION 1
Evgeniy Stepanovda2ff7e2015-10-13 23:48:28 +000034#endif
35
36#if defined(_LIBCPP_ABI_UNSTABLE) || _LIBCPP_ABI_VERSION >= 2
Shoaib Meenai4bdf4372016-09-12 20:14:44 +000037// Change short string representation so that string data starts at offset 0,
Evgeniy Stepanovc299de22015-11-06 22:02:29 +000038// improving its alignment in some cases.
Evgeniy Stepanovda2ff7e2015-10-13 23:48:28 +000039#define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT
Evgeniy Stepanovc299de22015-11-06 22:02:29 +000040// Fix deque iterator type in order to support incomplete types.
41#define _LIBCPP_ABI_INCOMPLETE_TYPES_IN_DEQUE
Eric Fiselier696b44f2015-12-30 20:57:59 +000042// Fix undefined behavior in how std::list stores it's linked nodes.
43#define _LIBCPP_ABI_LIST_REMOVE_NODE_POINTER_UB
Eric Fiselier70f5f872016-07-19 17:56:20 +000044// Fix undefined behavior in how __tree stores its end and parent nodes.
45#define _LIBCPP_ABI_TREE_REMOVE_NODE_POINTER_UB
Eric Fiselierd8f24a42016-07-23 20:36:55 +000046// Fix undefined behavior in how __hash_table stores it's pointer types
47#define _LIBCPP_ABI_FIX_UNORDERED_NODE_POINTER_UB
Eric Fiselierfbb66132016-01-27 00:11:54 +000048#define _LIBCPP_ABI_FORWARD_LIST_REMOVE_NODE_POINTER_UB
Eric Fiselier7cb64a02016-02-10 20:46:23 +000049#define _LIBCPP_ABI_FIX_UNORDERED_CONTAINER_SIZE_TYPE
Eric Fiselier68143d42016-06-14 03:48:09 +000050#define _LIBCPP_ABI_VARIADIC_LOCK_GUARD
Eric Fiselierf38846d2016-12-28 11:09:18 +000051// Don't use a nullptr_t simulation type in C++03 instead using C++11 nullptr
Eric Fiselier83e3ee02016-12-28 09:50:23 +000052// provided under the alternate keyword __nullptr, which changes the mangling
53// of nullptr_t. This option is ABI incompatible with GCC in C++03 mode.
54#define _LIBCPP_ABI_ALWAYS_USE_CXX11_NULLPTR
Eric Fiselierab6bb302017-01-05 01:15:42 +000055// Define the `pointer_safety` enum as a C++11 strongly typed enumeration
56// instead of as a class simulating an enum. If this option is enabled
57// `pointer_safety` and `get_pointer_safety()` will no longer be available
58// in C++03.
59#define _LIBCPP_ABI_POINTER_SAFETY_ENUM_TYPE
Eric Fiselier08f7fe82016-07-18 01:58:37 +000060#elif _LIBCPP_ABI_VERSION == 1
Eric Fiselierfd0ef992017-01-02 22:17:51 +000061#if !defined(_WIN32)
62// Enable compiling a definition of error_category() into the libc++ dylib.
63#define _LIBCPP_DEPRECATED_ABI_EXTERNAL_ERROR_CATEGORY_CONSTRUCTOR
64#endif
Eric Fiselier08f7fe82016-07-18 01:58:37 +000065// Feature macros for disabling pre ABI v1 features. All of these options
66// are deprecated.
67#if defined(__FreeBSD__)
68#define _LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR
69#endif
70#endif
71
72#ifdef _LIBCPP_TRIVIAL_PAIR_COPY_CTOR
73#error "_LIBCPP_TRIVIAL_PAIR_COPY_CTOR" is no longer supported. \
74 use _LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR instead
Evgeniy Stepanovda2ff7e2015-10-13 23:48:28 +000075#endif
Howard Hinnantc51e1022010-05-11 19:42:16 +000076
77#define _LIBCPP_CONCAT1(_LIBCPP_X,_LIBCPP_Y) _LIBCPP_X##_LIBCPP_Y
78#define _LIBCPP_CONCAT(_LIBCPP_X,_LIBCPP_Y) _LIBCPP_CONCAT1(_LIBCPP_X,_LIBCPP_Y)
79
80#define _LIBCPP_NAMESPACE _LIBCPP_CONCAT(__,_LIBCPP_ABI_VERSION)
81
Eric Fiselierc6f17cc2016-09-25 03:34:28 +000082#if __cplusplus < 201103L
83#define _LIBCPP_CXX03_LANG
84#endif
Eric Fiselier86fcc922015-07-10 20:26:38 +000085
86#ifndef __has_attribute
87#define __has_attribute(__x) 0
88#endif
89#ifndef __has_builtin
90#define __has_builtin(__x) 0
91#endif
Eric Fiselier8020b6c2015-08-19 17:21:46 +000092#ifndef __has_extension
93#define __has_extension(__x) 0
94#endif
Eric Fiselier86fcc922015-07-10 20:26:38 +000095#ifndef __has_feature
96#define __has_feature(__x) 0
97#endif
98// '__is_identifier' returns '0' if '__x' is a reserved identifier provided by
99// the compiler and '1' otherwise.
100#ifndef __is_identifier
101#define __is_identifier(__x) 1
102#endif
103
Eric Fiselier8fbccea2017-01-06 21:42:58 +0000104#if defined(__clang__)
105#define _LIBCPP_COMPILER_CLANG
106#elif defined(__GNUC__)
107#define _LIBCPP_COMPILER_GCC
108#elif defined(_MSC_VER)
109#define _LIBCPP_COMPILER_MSVC
110#elif defined(__IBMCPP__)
111#define _LIBCPP_COMPILER_IBM
112#endif
113
Eric Fiseliera6d96342017-01-07 02:43:58 +0000114// FIXME: ABI detection should be done via compiler builtin macros. This
115// is just a placeholder until Clang implements such macros. For now assume
116// that Windows compilers pretending to be MSVC++ target the microsoft ABI.
117#if defined(_WIN32) && defined(_MSC_VER)
118# define _LIBCPP_ABI_MICROSOFT
119#else
120# define _LIBCPP_ABI_ITANIUM
121#endif
122
Dan Albert21800dc2016-09-19 18:00:45 +0000123// Need to detect which libc we're using if we're on Linux.
124#if defined(__linux__)
125#include <features.h>
126#if !defined(__GLIBC_PREREQ)
127#define __GLIBC_PREREQ(a, b) 0
128#endif // !defined(__GLIBC_PREREQ)
129#endif // defined(__linux__)
Eric Fiselier86fcc922015-07-10 20:26:38 +0000130
Howard Hinnantc51e1022010-05-11 19:42:16 +0000131#ifdef __LITTLE_ENDIAN__
132#if __LITTLE_ENDIAN__
133#define _LIBCPP_LITTLE_ENDIAN 1
134#define _LIBCPP_BIG_ENDIAN 0
Howard Hinnant3b6579a2010-08-22 00:02:43 +0000135#endif // __LITTLE_ENDIAN__
136#endif // __LITTLE_ENDIAN__
Howard Hinnantc51e1022010-05-11 19:42:16 +0000137
138#ifdef __BIG_ENDIAN__
139#if __BIG_ENDIAN__
140#define _LIBCPP_LITTLE_ENDIAN 0
141#define _LIBCPP_BIG_ENDIAN 1
Howard Hinnant3b6579a2010-08-22 00:02:43 +0000142#endif // __BIG_ENDIAN__
143#endif // __BIG_ENDIAN__
Howard Hinnantc51e1022010-05-11 19:42:16 +0000144
Dan Albert98d97792015-09-16 18:10:47 +0000145#ifdef __BYTE_ORDER__
146#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
147#define _LIBCPP_LITTLE_ENDIAN 1
148#define _LIBCPP_BIG_ENDIAN 0
149#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
150#define _LIBCPP_LITTLE_ENDIAN 0
151#define _LIBCPP_BIG_ENDIAN 1
152#endif // __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
153#endif // __BYTE_ORDER__
154
David Chisnall93008f02010-08-11 16:27:20 +0000155#ifdef __FreeBSD__
156# include <sys/endian.h>
157# if _BYTE_ORDER == _LITTLE_ENDIAN
158# define _LIBCPP_LITTLE_ENDIAN 1
159# define _LIBCPP_BIG_ENDIAN 0
Howard Hinnant3b6579a2010-08-22 00:02:43 +0000160# else // _BYTE_ORDER == _LITTLE_ENDIAN
David Chisnall93008f02010-08-11 16:27:20 +0000161# define _LIBCPP_LITTLE_ENDIAN 0
162# define _LIBCPP_BIG_ENDIAN 1
Howard Hinnant3b6579a2010-08-22 00:02:43 +0000163# endif // _BYTE_ORDER == _LITTLE_ENDIAN
Howard Hinnant13830352012-11-26 21:18:17 +0000164# ifndef __LONG_LONG_SUPPORTED
165# define _LIBCPP_HAS_NO_LONG_LONG
166# endif // __LONG_LONG_SUPPORTED
Howard Hinnant3b6579a2010-08-22 00:02:43 +0000167#endif // __FreeBSD__
David Chisnall93008f02010-08-11 16:27:20 +0000168
Joerg Sonnenberger153e4162013-05-17 21:17:34 +0000169#ifdef __NetBSD__
170# include <sys/endian.h>
171# if _BYTE_ORDER == _LITTLE_ENDIAN
172# define _LIBCPP_LITTLE_ENDIAN 1
173# define _LIBCPP_BIG_ENDIAN 0
174# else // _BYTE_ORDER == _LITTLE_ENDIAN
175# define _LIBCPP_LITTLE_ENDIAN 0
176# define _LIBCPP_BIG_ENDIAN 1
177# endif // _BYTE_ORDER == _LITTLE_ENDIAN
178# define _LIBCPP_HAS_QUICK_EXIT
179#endif // __NetBSD__
180
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000181#if defined(_WIN32)
182# define _LIBCPP_WIN32API 1
Howard Hinnant34bad2a2011-05-13 17:16:06 +0000183# define _LIBCPP_LITTLE_ENDIAN 1
184# define _LIBCPP_BIG_ENDIAN 0
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000185# define _LIBCPP_SHORT_WCHAR 1
Eric Fiselier8fbccea2017-01-06 21:42:58 +0000186
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000187// If mingw not explicitly detected, assume using MS C runtime only.
Howard Hinnant8ad70912013-09-17 01:34:47 +0000188# ifndef __MINGW32__
189# define _LIBCPP_MSVCRT // Using Microsoft's C Runtime library
190# endif
Saleem Abdulrasool32300ca2017-01-04 01:53:24 +0000191# if (defined(_M_AMD64) || defined(__x86_64__)) || (defined(_M_ARM) || defined(__arm__))
192# define _LIBCPP_HAS_BITSCAN64
193# endif
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000194#endif // defined(_WIN32)
Howard Hinnant34bad2a2011-05-13 17:16:06 +0000195
David Chisnall8074c342012-02-29 13:05:08 +0000196#ifdef __sun__
197# include <sys/isa_defs.h>
198# ifdef _LITTLE_ENDIAN
199# define _LIBCPP_LITTLE_ENDIAN 1
200# define _LIBCPP_BIG_ENDIAN 0
201# else
202# define _LIBCPP_LITTLE_ENDIAN 0
203# define _LIBCPP_BIG_ENDIAN 1
204# endif
205#endif // __sun__
206
Ed Schoutendcf37402015-03-10 07:46:06 +0000207#if defined(__CloudABI__)
208 // Certain architectures provide arc4random(). Prefer using
209 // arc4random() over /dev/{u,}random to make it possible to obtain
210 // random data even when using sandboxing mechanisms such as chroots,
211 // Capsicum, etc.
212# define _LIBCPP_USING_ARC4_RANDOM
213#elif defined(__native_client__)
JF Bastiend4832032014-12-01 19:19:55 +0000214 // NaCl's sandbox (which PNaCl also runs in) doesn't allow filesystem access,
215 // including accesses to the special files under /dev. C++11's
216 // std::random_device is instead exposed through a NaCl syscall.
217# define _LIBCPP_USING_NACL_RANDOM
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000218#elif defined(_LIBCPP_WIN32API)
Ed Schoutendcf37402015-03-10 07:46:06 +0000219# define _LIBCPP_USING_WIN32_RANDOM
220#else
221# define _LIBCPP_USING_DEV_RANDOM
222#endif
JF Bastiend4832032014-12-01 19:19:55 +0000223
Howard Hinnantc51e1022010-05-11 19:42:16 +0000224#if !defined(_LIBCPP_LITTLE_ENDIAN) || !defined(_LIBCPP_BIG_ENDIAN)
Howard Hinnant155c2af2010-05-24 17:49:41 +0000225# include <endian.h>
226# if __BYTE_ORDER == __LITTLE_ENDIAN
227# define _LIBCPP_LITTLE_ENDIAN 1
228# define _LIBCPP_BIG_ENDIAN 0
229# elif __BYTE_ORDER == __BIG_ENDIAN
230# define _LIBCPP_LITTLE_ENDIAN 0
231# define _LIBCPP_BIG_ENDIAN 1
Howard Hinnant3b6579a2010-08-22 00:02:43 +0000232# else // __BYTE_ORDER == __BIG_ENDIAN
Howard Hinnant155c2af2010-05-24 17:49:41 +0000233# error unable to determine endian
234# endif
Howard Hinnant3b6579a2010-08-22 00:02:43 +0000235#endif // !defined(_LIBCPP_LITTLE_ENDIAN) || !defined(_LIBCPP_BIG_ENDIAN)
Howard Hinnantc51e1022010-05-11 19:42:16 +0000236
Evgeniy Stepanov076b2372016-02-10 21:53:28 +0000237#if __has_attribute(__no_sanitize__)
238#define _LIBCPP_NO_CFI __attribute__((__no_sanitize__("cfi")))
239#else
240#define _LIBCPP_NO_CFI
241#endif
242
Eric Fiselier8fbccea2017-01-06 21:42:58 +0000243#if defined(_LIBCPP_COMPILER_CLANG)
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000244
Evgeniy Stepanovda2ff7e2015-10-13 23:48:28 +0000245// _LIBCPP_ALTERNATE_STRING_LAYOUT is an old name for
246// _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT left here for backward compatibility.
247#if (defined(__APPLE__) && !defined(__i386__) && !defined(__x86_64__) && \
248 !defined(__arm__)) || \
249 defined(_LIBCPP_ALTERNATE_STRING_LAYOUT)
250#define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT
Tim Northoverffc95932014-03-30 11:34:22 +0000251#endif
252
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000253#if __has_feature(cxx_alignas)
Howard Hinnant62cad692012-05-31 19:31:14 +0000254# define _ALIGNAS_TYPE(x) alignas(x)
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000255# define _ALIGNAS(x) alignas(x)
256#else
Howard Hinnant076b28c2012-05-31 20:14:00 +0000257# define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x))))
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000258# define _ALIGNAS(x) __attribute__((__aligned__(x)))
259#endif
260
Marshall Clow2b12c312014-02-22 15:13:48 +0000261#if __cplusplus < 201103L
Howard Hinnant31cd14f2010-09-16 23:27:26 +0000262typedef __char16_t char16_t;
263typedef __char32_t char32_t;
Howard Hinnant8e6a3982010-09-07 20:31:18 +0000264#endif
Howard Hinnant74279a52010-09-04 23:28:19 +0000265
Weiming Zhao9fe43d52016-04-21 05:28:18 +0000266#if !(__has_feature(cxx_exceptions)) && !defined(_LIBCPP_NO_EXCEPTIONS)
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000267#define _LIBCPP_NO_EXCEPTIONS
268#endif
269
Howard Hinnant72f73582010-08-11 17:04:31 +0000270#if !(__has_feature(cxx_rtti))
271#define _LIBCPP_NO_RTTI
272#endif
273
Howard Hinnant09bc0c92011-12-02 19:36:40 +0000274#if !(__has_feature(cxx_strong_enums))
275#define _LIBCPP_HAS_NO_STRONG_ENUMS
276#endif
277
Howard Hinnant74279a52010-09-04 23:28:19 +0000278#if !(__has_feature(cxx_decltype))
279#define _LIBCPP_HAS_NO_DECLTYPE
280#endif
281
Howard Hinnant8df96292011-05-26 17:07:32 +0000282#if __has_feature(cxx_attributes)
Richard Smithcabd3922012-07-26 02:04:22 +0000283# define _LIBCPP_NORETURN [[noreturn]]
Howard Hinnant8df96292011-05-26 17:07:32 +0000284#else
Richard Smithcabd3922012-07-26 02:04:22 +0000285# define _LIBCPP_NORETURN __attribute__ ((noreturn))
Howard Hinnant74279a52010-09-04 23:28:19 +0000286#endif
287
Howard Hinnant74279a52010-09-04 23:28:19 +0000288#if !(__has_feature(cxx_lambdas))
289#define _LIBCPP_HAS_NO_LAMBDAS
290#endif
291
292#if !(__has_feature(cxx_nullptr))
Eric Fiselier83e3ee02016-12-28 09:50:23 +0000293# if __has_extension(cxx_nullptr) && defined(_LIBCPP_ABI_ALWAYS_USE_CXX11_NULLPTR)
294# define nullptr __nullptr
295# else
296# define _LIBCPP_HAS_NO_NULLPTR
297# endif
Howard Hinnant74279a52010-09-04 23:28:19 +0000298#endif
299
300#if !(__has_feature(cxx_rvalue_references))
301#define _LIBCPP_HAS_NO_RVALUE_REFERENCES
302#endif
303
Howard Hinnant74279a52010-09-04 23:28:19 +0000304#if !(__has_feature(cxx_auto_type))
305#define _LIBCPP_HAS_NO_AUTO_TYPE
Howard Hinnant986832c2011-07-29 21:35:53 +0000306#endif
307
Howard Hinnant74279a52010-09-04 23:28:19 +0000308#if !(__has_feature(cxx_variadic_templates))
309#define _LIBCPP_HAS_NO_VARIADICS
310#endif
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000311
Howard Hinnant33711792011-08-12 21:56:02 +0000312#if !(__has_feature(cxx_generalized_initializers))
313#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
314#endif
315
Howard Hinnantdd0d7022011-09-22 19:10:18 +0000316#if __has_feature(is_base_of)
Howard Hinnant13d8bc12013-08-01 18:17:34 +0000317# define _LIBCPP_HAS_IS_BASE_OF
Howard Hinnantdd0d7022011-09-22 19:10:18 +0000318#endif
319
Eric Fiselierf7394302015-06-13 07:08:02 +0000320#if __has_feature(is_final)
321# define _LIBCPP_HAS_IS_FINAL
322#endif
323
Douglas Gregor13034442011-06-22 22:17:44 +0000324// Objective-C++ features (opt-in)
325#if __has_feature(objc_arc)
326#define _LIBCPP_HAS_OBJC_ARC
327#endif
328
329#if __has_feature(objc_arc_weak)
330#define _LIBCPP_HAS_OBJC_ARC_WEAK
Howard Hinnant09bc0c92011-12-02 19:36:40 +0000331#define _LIBCPP_HAS_NO_STRONG_ENUMS
Douglas Gregor13034442011-06-22 22:17:44 +0000332#endif
333
Howard Hinnant62c8c0b2010-09-06 19:10:31 +0000334#if !(__has_feature(cxx_constexpr))
335#define _LIBCPP_HAS_NO_CONSTEXPR
336#endif
337
Eric Fiselierb4c0c662014-07-17 05:16:18 +0000338#if !(__has_feature(cxx_relaxed_constexpr))
339#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR
340#endif
341
Marshall Clowfaae6982015-03-17 15:30:22 +0000342#if !(__has_feature(cxx_variable_templates))
343#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES
344#endif
345
David Blaikie97ab0022013-05-13 21:53:44 +0000346#if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L
347#if defined(__FreeBSD__)
David Chisnall277ad052012-03-14 14:10:37 +0000348#define _LIBCPP_HAS_QUICK_EXIT
Howard Hinnantcabc5a22012-10-13 18:03:53 +0000349#define _LIBCPP_HAS_C11_FEATURES
Petr Hosek34a54552016-10-10 18:53:32 +0000350#elif defined(__Fuchsia__)
351#define _LIBCPP_HAS_QUICK_EXIT
352#define _LIBCPP_HAS_C11_FEATURES
David Blaikie97ab0022013-05-13 21:53:44 +0000353#elif defined(__linux__)
Vasileios Kalintiris281b4cf2015-11-09 10:21:04 +0000354#if !defined(_LIBCPP_HAS_MUSL_LIBC)
Dan Albert21800dc2016-09-19 18:00:45 +0000355#if __GLIBC_PREREQ(2, 15) || defined(__BIONIC__)
David Blaikie97ab0022013-05-13 21:53:44 +0000356#define _LIBCPP_HAS_QUICK_EXIT
357#endif
358#if __GLIBC_PREREQ(2, 17)
359#define _LIBCPP_HAS_C11_FEATURES
360#endif
Vasileios Kalintiris281b4cf2015-11-09 10:21:04 +0000361#else // defined(_LIBCPP_HAS_MUSL_LIBC)
362#define _LIBCPP_HAS_QUICK_EXIT
363#define _LIBCPP_HAS_C11_FEATURES
David Blaikie97ab0022013-05-13 21:53:44 +0000364#endif
Vasileios Kalintiris281b4cf2015-11-09 10:21:04 +0000365#endif // __linux__
David Chisnall277ad052012-03-14 14:10:37 +0000366#endif
367
Eric Fiselier1af87ca2015-12-15 22:16:47 +0000368#if !(__has_feature(cxx_noexcept))
369#define _LIBCPP_HAS_NO_NOEXCEPT
Howard Hinnant68d13392011-05-11 20:19:40 +0000370#endif
371
Alexis Hunt43b6e8e2011-07-18 18:37:21 +0000372#if __has_feature(underlying_type)
Marshall Clow20723522014-06-26 01:07:56 +0000373# define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T)
374#endif
375
376#if __has_feature(is_literal)
377# define _LIBCPP_IS_LITERAL(T) __is_literal(T)
Alexis Hunt43b6e8e2011-07-18 18:37:21 +0000378#endif
379
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000380// Inline namespaces are available in Clang regardless of C++ dialect.
381#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE {
382#define _LIBCPP_END_NAMESPACE_STD } }
383#define _VSTD std::_LIBCPP_NAMESPACE
384
385namespace std {
386 inline namespace _LIBCPP_NAMESPACE {
387 }
388}
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000389
Marshall Clow90fc0472014-04-14 15:44:57 +0000390#if !defined(_LIBCPP_HAS_NO_ASAN) && !__has_feature(address_sanitizer)
391#define _LIBCPP_HAS_NO_ASAN
392#endif
393
Marshall Clow55b23d22016-01-12 00:38:04 +0000394// Allow for build-time disabling of unsigned integer sanitization
Jonathan Roelofs25463502016-01-13 23:27:08 +0000395#if !defined(_LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK) && __has_attribute(no_sanitize)
Saleem Abdulrasool38acb642016-02-09 04:05:37 +0000396#define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK __attribute__((__no_sanitize__("unsigned-integer-overflow")))
Marshall Clow55b23d22016-01-12 00:38:04 +0000397#endif
398
Eric Fiselier8fbccea2017-01-06 21:42:58 +0000399#elif defined(_LIBCPP_COMPILER_GCC)
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000400
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000401#define _ALIGNAS(x) __attribute__((__aligned__(x)))
Howard Hinnant67f75172012-08-19 17:14:47 +0000402#define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x))))
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000403
Richard Smithcabd3922012-07-26 02:04:22 +0000404#define _LIBCPP_NORETURN __attribute__((noreturn))
Howard Hinnant1e570a32011-05-31 13:13:49 +0000405
Marshall Clow20723522014-06-26 01:07:56 +0000406#if _GNUC_VER >= 407
407#define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T)
408#define _LIBCPP_IS_LITERAL(T) __is_literal_type(T)
Eric Fiselierf7394302015-06-13 07:08:02 +0000409#define _LIBCPP_HAS_IS_FINAL
410#endif
411
412#if defined(__GNUC__) && _GNUC_VER >= 403
413# define _LIBCPP_HAS_IS_BASE_OF
Marshall Clow20723522014-06-26 01:07:56 +0000414#endif
415
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000416#if !__EXCEPTIONS
417#define _LIBCPP_NO_EXCEPTIONS
418#endif
419
Nico Weberd04e4752014-06-04 15:46:56 +0000420// constexpr was added to GCC in 4.6.
421#if _GNUC_VER < 406
Howard Hinnant62c8c0b2010-09-06 19:10:31 +0000422#define _LIBCPP_HAS_NO_CONSTEXPR
Nico Weberd04e4752014-06-04 15:46:56 +0000423// Can only use constexpr in c++11 mode.
424#elif !defined(__GXX_EXPERIMENTAL_CXX0X__) && __cplusplus < 201103L
425#define _LIBCPP_HAS_NO_CONSTEXPR
426#endif
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000427
Marshall Clowe2be6332015-10-20 07:37:11 +0000428// Determine if GCC supports relaxed constexpr
429#if !defined(__cpp_constexpr) || __cpp_constexpr < 201304L
Eric Fiselierb4c0c662014-07-17 05:16:18 +0000430#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR
Marshall Clowe2be6332015-10-20 07:37:11 +0000431#endif
432
Marshall Clowfaae6982015-03-17 15:30:22 +0000433// GCC 5 will support variable templates
Eric Fiselier88f07122015-12-15 00:32:21 +0000434#if !defined(__cpp_variable_templates) || __cpp_variable_templates < 201304L
Marshall Clowfaae6982015-03-17 15:30:22 +0000435#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES
Eric Fiselier88f07122015-12-15 00:32:21 +0000436#endif
Eric Fiselierb4c0c662014-07-17 05:16:18 +0000437
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000438#ifndef __GXX_EXPERIMENTAL_CXX0X__
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000439#define _LIBCPP_HAS_NO_DECLTYPE
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000440#define _LIBCPP_HAS_NO_NULLPTR
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000441#define _LIBCPP_HAS_NO_UNICODE_CHARS
442#define _LIBCPP_HAS_NO_VARIADICS
Howard Hinnant74279a52010-09-04 23:28:19 +0000443#define _LIBCPP_HAS_NO_RVALUE_REFERENCES
Logan Chien5eb2ac42013-12-14 06:44:09 +0000444#define _LIBCPP_HAS_NO_STRONG_ENUMS
Eric Fiselier1af87ca2015-12-15 22:16:47 +0000445#define _LIBCPP_HAS_NO_NOEXCEPT
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000446
Howard Hinnant3b6579a2010-08-22 00:02:43 +0000447#else // __GXX_EXPERIMENTAL_CXX0X__
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000448
Howard Hinnantcafe7172012-10-03 20:48:05 +0000449#if _GNUC_VER < 403
Howard Hinnant74279a52010-09-04 23:28:19 +0000450#define _LIBCPP_HAS_NO_RVALUE_REFERENCES
Howard Hinnantc51e1022010-05-11 19:42:16 +0000451#endif
452
Eric Fiselierf825e1b2015-12-23 08:20:26 +0000453
Howard Hinnantcafe7172012-10-03 20:48:05 +0000454#if _GNUC_VER < 404
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000455#define _LIBCPP_HAS_NO_DECLTYPE
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000456#define _LIBCPP_HAS_NO_UNICODE_CHARS
457#define _LIBCPP_HAS_NO_VARIADICS
Howard Hinnant33711792011-08-12 21:56:02 +0000458#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
Howard Hinnantcafe7172012-10-03 20:48:05 +0000459#endif // _GNUC_VER < 404
Howard Hinnantc51e1022010-05-11 19:42:16 +0000460
Howard Hinnantcafe7172012-10-03 20:48:05 +0000461#if _GNUC_VER < 406
Eric Fiselier1af87ca2015-12-15 22:16:47 +0000462#define _LIBCPP_HAS_NO_NOEXCEPT
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000463#define _LIBCPP_HAS_NO_NULLPTR
Howard Hinnantc51e1022010-05-11 19:42:16 +0000464#endif
465
Howard Hinnant3b6579a2010-08-22 00:02:43 +0000466#endif // __GXX_EXPERIMENTAL_CXX0X__
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000467
Howard Hinnantc51e1022010-05-11 19:42:16 +0000468#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { namespace _LIBCPP_NAMESPACE {
469#define _LIBCPP_END_NAMESPACE_STD } }
Howard Hinnantb1ad5a82011-06-30 21:18:19 +0000470#define _VSTD std::_LIBCPP_NAMESPACE
Howard Hinnantc51e1022010-05-11 19:42:16 +0000471
472namespace std {
473namespace _LIBCPP_NAMESPACE {
474}
475using namespace _LIBCPP_NAMESPACE __attribute__((__strong__));
476}
477
Marshall Clow90fc0472014-04-14 15:44:57 +0000478#if !defined(_LIBCPP_HAS_NO_ASAN) && !defined(__SANITIZE_ADDRESS__)
479#define _LIBCPP_HAS_NO_ASAN
480#endif
481
Eric Fiselier8fbccea2017-01-06 21:42:58 +0000482#elif defined(_LIBCPP_COMPILER_MSVC)
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000483
Eric Fiselier8fbccea2017-01-06 21:42:58 +0000484#define _LIBCPP_TOSTRING2(x) #x
485#define _LIBCPP_TOSTRING(x) _LIBCPP_TOSTRING2(x)
486#define _LIBCPP_WARNING(x) __pragma(message(__FILE__ "(" _LIBCPP_TOSTRING(__LINE__) ") : warning note: " x))
487
488#if _MSC_VER < 1900
489#error "MSVC versions prior to Visual Studio 2015 are not supported"
490#endif
491
492#define _LIBCPP_HAS_IS_BASE_OF
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000493#define _LIBCPP_HAS_NO_CONSTEXPR
Eric Fiselierb4c0c662014-07-17 05:16:18 +0000494#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR
Marshall Clowfaae6982015-03-17 15:30:22 +0000495#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES
Saleem Abdulrasool37d0c4f2017-01-04 05:49:59 +0000496#if _MSC_VER <= 1800
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000497#define _LIBCPP_HAS_NO_UNICODE_CHARS
Saleem Abdulrasool37d0c4f2017-01-04 05:49:59 +0000498#endif
Eric Fiselier1af87ca2015-12-15 22:16:47 +0000499#define _LIBCPP_HAS_NO_NOEXCEPT
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000500#define __alignof__ __alignof
Richard Smithcabd3922012-07-26 02:04:22 +0000501#define _LIBCPP_NORETURN __declspec(noreturn)
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000502#define _ALIGNAS(x) __declspec(align(x))
503#define _LIBCPP_HAS_NO_VARIADICS
504
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000505#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {
506#define _LIBCPP_END_NAMESPACE_STD }
507#define _VSTD std
508
Howard Hinnant33f04722013-10-04 23:56:37 +0000509# define _LIBCPP_WEAK
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000510namespace std {
511}
512
Marshall Clow90fc0472014-04-14 15:44:57 +0000513#define _LIBCPP_HAS_NO_ASAN
514
Eric Fiselier8fbccea2017-01-06 21:42:58 +0000515#elif defined(_LIBCPP_COMPILER_IBM)
Howard Hinnantea382952013-08-14 18:00:20 +0000516
517#define _ALIGNAS(x) __attribute__((__aligned__(x)))
518#define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x))))
519#define _ATTRIBUTE(x) __attribute__((x))
520#define _LIBCPP_NORETURN __attribute__((noreturn))
521
Howard Hinnantea382952013-08-14 18:00:20 +0000522#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
Eric Fiselier1af87ca2015-12-15 22:16:47 +0000523#define _LIBCPP_HAS_NO_NOEXCEPT
Howard Hinnantea382952013-08-14 18:00:20 +0000524#define _LIBCPP_HAS_NO_NULLPTR
525#define _LIBCPP_HAS_NO_UNICODE_CHARS
Howard Hinnantea382952013-08-14 18:00:20 +0000526#define _LIBCPP_HAS_IS_BASE_OF
Eric Fiselierf7394302015-06-13 07:08:02 +0000527#define _LIBCPP_HAS_IS_FINAL
Marshall Clowfaae6982015-03-17 15:30:22 +0000528#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES
Howard Hinnantea382952013-08-14 18:00:20 +0000529
530#if defined(_AIX)
531#define __MULTILOCALE_API
532#endif
533
534#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE {
535#define _LIBCPP_END_NAMESPACE_STD } }
536#define _VSTD std::_LIBCPP_NAMESPACE
537
538namespace std {
539 inline namespace _LIBCPP_NAMESPACE {
540 }
541}
542
Marshall Clow90fc0472014-04-14 15:44:57 +0000543#define _LIBCPP_HAS_NO_ASAN
544
Eric Fiselier8fbccea2017-01-06 21:42:58 +0000545#endif // _LIBCPP_COMPILER_[CLANG|GCC|MSVC|IBM]
Howard Hinnantc51e1022010-05-11 19:42:16 +0000546
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000547#if defined(__ELF__)
548#define _LIBCPP_OBJECT_FORMAT_ELF 1
549#elif defined(__MACH__)
550#define _LIBCPP_OBJECT_FORMAT_MACHO 1
551#else
552#define _LIBCPP_OBJECT_FORMAT_COFF 1
553#endif
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000554
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000555#if defined(_LIBCPP_OBJECT_FORMAT_COFF)
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000556#if defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000557# define _LIBCPP_DLL_VIS
Shoaib Meenai5ac10672016-09-19 18:29:07 +0000558# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS
559# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS
Shoaib Meenai2d71db42016-11-16 22:18:10 +0000560# define _LIBCPP_OVERRIDABLE_FUNC_VIS
Eric Fiselier51e8d2f2016-09-26 22:19:41 +0000561#elif defined(_LIBCPP_BUILDING_LIBRARY)
562# define _LIBCPP_DLL_VIS __declspec(dllexport)
563# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS
564# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS _LIBCPP_DLL_VIS
Shoaib Meenai2d71db42016-11-16 22:18:10 +0000565# define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_DLL_VIS
Eric Fiselier51e8d2f2016-09-26 22:19:41 +0000566#else
567# define _LIBCPP_DLL_VIS __declspec(dllimport)
568# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS _LIBCPP_DLL_VIS
569# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS
Shoaib Meenai2d71db42016-11-16 22:18:10 +0000570# define _LIBCPP_OVERRIDABLE_FUNC_VIS
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000571#endif
Eric Fiselier51e8d2f2016-09-26 22:19:41 +0000572
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000573#define _LIBCPP_TYPE_VIS _LIBCPP_DLL_VIS
574#define _LIBCPP_FUNC_VIS _LIBCPP_DLL_VIS
575#define _LIBCPP_EXCEPTION_ABI _LIBCPP_DLL_VIS
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000576#define _LIBCPP_HIDDEN
Eric Fiselierb5eb1bf2017-01-04 23:56:00 +0000577#define _LIBCPP_TEMPLATE_VIS
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000578#define _LIBCPP_FUNC_VIS_ONLY
579#define _LIBCPP_ENUM_VIS
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000580
Eric Fiselier8fbccea2017-01-06 21:42:58 +0000581#if defined(_LIBCPP_COMPILER_MSVC)
Shoaib Meenai7e5a8612016-09-16 19:12:54 +0000582# define _LIBCPP_INLINE_VISIBILITY __forceinline
583# define _LIBCPP_ALWAYS_INLINE __forceinline
584# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __forceinline
585#else
586# define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__always_inline__))
587# define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__))
588# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__ ((__always_inline__))
589#endif
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000590#endif // defined(_LIBCPP_OBJECT_FORMAT_COFF)
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000591
592#ifndef _LIBCPP_HIDDEN
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000593#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000594#define _LIBCPP_HIDDEN __attribute__ ((__visibility__("hidden")))
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000595#else
596#define _LIBCPP_HIDDEN
597#endif
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000598#endif
599
600#ifndef _LIBCPP_FUNC_VIS
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000601#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000602#define _LIBCPP_FUNC_VIS __attribute__ ((__visibility__("default")))
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000603#else
604#define _LIBCPP_FUNC_VIS
605#endif
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000606#endif
607
608#ifndef _LIBCPP_TYPE_VIS
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000609# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
610# if __has_attribute(__type_visibility__)
611# define _LIBCPP_TYPE_VIS __attribute__ ((__type_visibility__("default")))
612# else
613# define _LIBCPP_TYPE_VIS __attribute__ ((__visibility__("default")))
614# endif
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000615# else
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000616# define _LIBCPP_TYPE_VIS
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000617# endif
618#endif
619
Eric Fiselierb5eb1bf2017-01-04 23:56:00 +0000620#ifndef _LIBCPP_TEMPLATE_VIS
621# define _LIBCPP_TEMPLATE_VIS _LIBCPP_TYPE_VIS
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000622#endif
623
624#ifndef _LIBCPP_FUNC_VIS_ONLY
625# define _LIBCPP_FUNC_VIS_ONLY _LIBCPP_FUNC_VIS
626#endif
627
Shoaib Meenai2d71db42016-11-16 22:18:10 +0000628#ifndef _LIBCPP_OVERRIDABLE_FUNC_VIS
629# define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_FUNC_VIS
630#endif
631
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000632#ifndef _LIBCPP_EXCEPTION_ABI
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000633#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000634#define _LIBCPP_EXCEPTION_ABI __attribute__ ((__visibility__("default")))
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000635#else
636#define _LIBCPP_EXCEPTION_ABI
637#endif
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000638#endif
639
640#ifndef _LIBCPP_ENUM_VIS
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000641# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__)
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000642# define _LIBCPP_ENUM_VIS __attribute__ ((__type_visibility__("default")))
643# else
644# define _LIBCPP_ENUM_VIS
645# endif
646#endif
647
648#ifndef _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000649# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__)
Eric Fiselierd9c4da02016-10-07 23:07:59 +0000650# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS __attribute__ ((__type_visibility__("default")))
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000651# else
652# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS
653# endif
654#endif
655
Shoaib Meenai5ac10672016-09-19 18:29:07 +0000656#ifndef _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS
657# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS
658#endif
659
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000660#ifndef _LIBCPP_INLINE_VISIBILITY
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000661#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
Eric Fiselierc7fc7082016-10-13 04:07:58 +0000662#define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__visibility__("hidden"), __always_inline__))
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000663#else
664#define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__always_inline__))
665#endif
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000666#endif
667
668#ifndef _LIBCPP_ALWAYS_INLINE
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000669#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
Eric Fiselierc7fc7082016-10-13 04:07:58 +0000670#define _LIBCPP_ALWAYS_INLINE __attribute__ ((__visibility__("hidden"), __always_inline__))
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000671#else
672#define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__))
673#endif
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000674#endif
675
Eric Fiselier815ed732016-09-16 00:00:48 +0000676#ifndef _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000677# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
678# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__((__visibility__("default"), __always_inline__))
679# else
680# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__((__always_inline__))
681# endif
Eric Fiselier815ed732016-09-16 00:00:48 +0000682#endif
683
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000684#ifndef _LIBCPP_PREFERRED_OVERLOAD
685# if __has_attribute(__enable_if__)
686# define _LIBCPP_PREFERRED_OVERLOAD __attribute__ ((__enable_if__(true, "")))
687# endif
688#endif
689
Eric Fiselier1af87ca2015-12-15 22:16:47 +0000690#ifndef _LIBCPP_HAS_NO_NOEXCEPT
691# define _NOEXCEPT noexcept
692# define _NOEXCEPT_(x) noexcept(x)
693#else
694# define _NOEXCEPT throw()
695# define _NOEXCEPT_(x)
696#endif
697
Eric Fiselierfb825432016-12-28 04:58:52 +0000698#if defined(_LIBCPP_DEBUG_USE_EXCEPTIONS)
699# if !defined(_LIBCPP_DEBUG)
700# error cannot use _LIBCPP_DEBUG_USE_EXCEPTIONS unless _LIBCPP_DEBUG is defined
701# endif
702# define _NOEXCEPT_DEBUG noexcept(false)
703# define _NOEXCEPT_DEBUG_(x) noexcept(false)
704#else
705# define _NOEXCEPT_DEBUG _NOEXCEPT
706# define _NOEXCEPT_DEBUG_(x) _NOEXCEPT_(x)
707#endif
708
Howard Hinnantc51e1022010-05-11 19:42:16 +0000709#ifdef _LIBCPP_HAS_NO_UNICODE_CHARS
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000710typedef unsigned short char16_t;
711typedef unsigned int char32_t;
Howard Hinnant3b6579a2010-08-22 00:02:43 +0000712#endif // _LIBCPP_HAS_NO_UNICODE_CHARS
Howard Hinnantc51e1022010-05-11 19:42:16 +0000713
Stephan Tolksdorf0efeb6c2014-03-26 19:45:52 +0000714#ifndef __SIZEOF_INT128__
715#define _LIBCPP_HAS_NO_INT128
716#endif
717
Eric Fiselierc6f17cc2016-09-25 03:34:28 +0000718#ifdef _LIBCPP_CXX03_LANG
719# if __has_extension(c_static_assert)
720# define static_assert(__b, __m) _Static_assert(__b, __m)
721# else
Richard Smith7f0d6482015-10-13 23:12:22 +0000722extern "C++" {
Howard Hinnantc51e1022010-05-11 19:42:16 +0000723template <bool> struct __static_assert_test;
724template <> struct __static_assert_test<true> {};
725template <unsigned> struct __static_assert_check {};
Richard Smith7f0d6482015-10-13 23:12:22 +0000726}
Howard Hinnantc51e1022010-05-11 19:42:16 +0000727#define static_assert(__b, __m) \
728 typedef __static_assert_check<sizeof(__static_assert_test<(__b)>)> \
729 _LIBCPP_CONCAT(__t, __LINE__)
Eric Fiselierc6f17cc2016-09-25 03:34:28 +0000730# endif // __has_extension(c_static_assert)
731#endif // _LIBCPP_CXX03_LANG
Howard Hinnantc51e1022010-05-11 19:42:16 +0000732
733#ifdef _LIBCPP_HAS_NO_DECLTYPE
Eric Fiselier86fcc922015-07-10 20:26:38 +0000734// GCC 4.6 provides __decltype in all standard modes.
735#if !__is_identifier(__decltype) || _GNUC_VER >= 406
Eric Fiselier1ac54842015-06-13 06:27:17 +0000736# define decltype(__x) __decltype(__x)
737#else
738# define decltype(__x) __typeof__(__x)
739#endif
Howard Hinnantc51e1022010-05-11 19:42:16 +0000740#endif
741
Howard Hinnant62c8c0b2010-09-06 19:10:31 +0000742#ifdef _LIBCPP_HAS_NO_CONSTEXPR
Howard Hinnant664183b2012-04-02 00:40:41 +0000743#define _LIBCPP_CONSTEXPR
744#else
745#define _LIBCPP_CONSTEXPR constexpr
Howard Hinnant62c8c0b2010-09-06 19:10:31 +0000746#endif
747
Eric Fiselier07b2b552016-11-18 06:42:17 +0000748#ifdef _LIBCPP_CXX03_LANG
Howard Hinnant3d284222013-05-02 20:18:43 +0000749#define _LIBCPP_DEFAULT {}
750#else
751#define _LIBCPP_DEFAULT = default;
752#endif
753
Eric Fiselier2d8515f2017-01-06 20:58:25 +0000754#ifdef _LIBCPP_CXX03_LANG
Eric Fiselierd06276b2016-03-31 02:15:15 +0000755#define _LIBCPP_EQUAL_DELETE
756#else
757#define _LIBCPP_EQUAL_DELETE = delete
758#endif
759
Nuno Lopes22df2dc2012-06-28 16:47:34 +0000760#ifdef __GNUC__
Joerg Sonnenberger4944e0b2013-04-29 19:52:08 +0000761#define _NOALIAS __attribute__((__malloc__))
Nuno Lopes22df2dc2012-06-28 16:47:34 +0000762#else
763#define _NOALIAS
764#endif
765
Eric Fiseliere2c076a2017-01-02 20:15:33 +0000766#if __has_extension(cxx_explicit_conversions) || defined(__IBMCPP__) || \
Eric Fiselier6a5f6f92016-12-30 14:05:52 +0000767 (!defined(_LIBCPP_CXX03_LANG) && defined(__GNUC__)) // All supported GCC versions
Howard Hinnant86a291f2012-02-21 21:46:43 +0000768# define _LIBCPP_EXPLICIT explicit
769#else
770# define _LIBCPP_EXPLICIT
771#endif
772
Richard Smith1f1c1472014-06-04 19:54:15 +0000773#if !__has_builtin(__builtin_operator_new) || !__has_builtin(__builtin_operator_delete)
774# define _LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE
775#endif
776
Howard Hinnant09bc0c92011-12-02 19:36:40 +0000777#ifdef _LIBCPP_HAS_NO_STRONG_ENUMS
Howard Hinnant8331b762013-03-06 23:30:19 +0000778#define _LIBCPP_DECLARE_STRONG_ENUM(x) struct _LIBCPP_TYPE_VIS x { enum __lx
Howard Hinnant09bc0c92011-12-02 19:36:40 +0000779#define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) \
Howard Hinnant49e145e2012-10-30 19:06:59 +0000780 __lx __v_; \
781 _LIBCPP_ALWAYS_INLINE x(__lx __v) : __v_(__v) {} \
782 _LIBCPP_ALWAYS_INLINE explicit x(int __v) : __v_(static_cast<__lx>(__v)) {} \
Howard Hinnant09bc0c92011-12-02 19:36:40 +0000783 _LIBCPP_ALWAYS_INLINE operator int() const {return __v_;} \
784 };
785#else // _LIBCPP_HAS_NO_STRONG_ENUMS
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000786#define _LIBCPP_DECLARE_STRONG_ENUM(x) enum class _LIBCPP_ENUM_VIS x
Howard Hinnant09bc0c92011-12-02 19:36:40 +0000787#define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x)
788#endif // _LIBCPP_HAS_NO_STRONG_ENUMS
789
Howard Hinnant6148a9b2013-08-23 20:10:18 +0000790#ifdef _LIBCPP_DEBUG
791# if _LIBCPP_DEBUG == 0
Howard Hinnant8ea98242013-08-23 17:37:05 +0000792# define _LIBCPP_DEBUG_LEVEL 1
Howard Hinnant6148a9b2013-08-23 20:10:18 +0000793# elif _LIBCPP_DEBUG == 1
Howard Hinnant8ea98242013-08-23 17:37:05 +0000794# define _LIBCPP_DEBUG_LEVEL 2
795# else
Howard Hinnant6148a9b2013-08-23 20:10:18 +0000796# error Supported values for _LIBCPP_DEBUG are 0 and 1
Howard Hinnant8ea98242013-08-23 17:37:05 +0000797# endif
798# define _LIBCPP_EXTERN_TEMPLATE(...)
799#endif
800
Howard Hinnant862ca992012-11-06 21:08:48 +0000801#ifndef _LIBCPP_EXTERN_TEMPLATE
Justin Bogner67105aa2014-08-15 17:58:56 +0000802#define _LIBCPP_EXTERN_TEMPLATE(...) extern template __VA_ARGS__;
Howard Hinnant862ca992012-11-06 21:08:48 +0000803#endif
804
Howard Hinnant8ea98242013-08-23 17:37:05 +0000805#ifndef _LIBCPP_EXTERN_TEMPLATE2
806#define _LIBCPP_EXTERN_TEMPLATE2(...) extern template __VA_ARGS__;
807#endif
808
Tim Northover0528f502014-03-30 14:59:12 +0000809#if defined(__APPLE__) && defined(__LP64__) && !defined(__x86_64__)
Tim Northovera4fb4622014-03-30 11:34:26 +0000810#define _LIBCPP_NONUNIQUE_RTTI_BIT (1ULL << 63)
811#endif
812
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000813#if defined(__APPLE__) || defined(__FreeBSD__) || defined(_LIBCPP_MSVCRT) || \
Ed Schouten13eb7dc2015-03-10 09:26:38 +0000814 defined(__sun__) || defined(__NetBSD__) || defined(__CloudABI__)
Alexis Hunt1adf2aa2011-07-15 05:40:33 +0000815#define _LIBCPP_LOCALE__L_EXTENSIONS 1
816#endif
Yaron Keren804da952013-12-20 13:19:45 +0000817
Ben Craig133f4c12016-02-10 13:47:25 +0000818#if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
819// Most unix variants have catopen. These are the specific ones that don't.
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000820#if !defined(__BIONIC__) && !defined(_NEWLIB_VERSION)
Ed Schouten118b6032015-03-11 16:39:36 +0000821#define _LIBCPP_HAS_CATOPEN 1
822#endif
Ben Craig133f4c12016-02-10 13:47:25 +0000823#endif
Ed Schouten118b6032015-03-11 16:39:36 +0000824
Marshall Clow82378c02013-03-18 19:34:07 +0000825#ifdef __FreeBSD__
David Chisnall6ae8f352011-11-13 17:15:33 +0000826#define _DECLARE_C99_LDBL_MATH 1
827#endif
Alexis Hunt1adf2aa2011-07-15 05:40:33 +0000828
Marshall Clow82378c02013-03-18 19:34:07 +0000829#if defined(__APPLE__) || defined(__FreeBSD__)
Howard Hinnantf312e3e2011-09-28 23:39:33 +0000830#define _LIBCPP_HAS_DEFAULTRUNELOCALE
Alexis Hunt5a4dd562011-07-09 01:09:31 +0000831#endif
832
Marshall Clow82378c02013-03-18 19:34:07 +0000833#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__sun__)
Alexis Huntc2017f12011-07-09 03:40:04 +0000834#define _LIBCPP_WCTYPE_IS_MASK
835#endif
836
Howard Hinnantdf7d11e2013-05-07 20:16:13 +0000837#ifndef _LIBCPP_STD_VER
838# if __cplusplus <= 201103L
839# define _LIBCPP_STD_VER 11
Marshall Clow348694e2014-06-06 22:31:09 +0000840# elif __cplusplus <= 201402L
841# define _LIBCPP_STD_VER 14
Howard Hinnantdf7d11e2013-05-07 20:16:13 +0000842# else
Eric Fiselierae5b6672016-06-27 01:02:43 +0000843# define _LIBCPP_STD_VER 16 // current year, or date of c++17 ratification
Howard Hinnantdf7d11e2013-05-07 20:16:13 +0000844# endif
845#endif // _LIBCPP_STD_VER
846
Marshall Clowa2cbe0d2013-09-28 18:35:31 +0000847#if _LIBCPP_STD_VER > 11
848#define _LIBCPP_DEPRECATED [[deprecated]]
849#else
850#define _LIBCPP_DEPRECATED
851#endif
852
Marshall Clow1045cee2013-07-15 14:57:19 +0000853#if _LIBCPP_STD_VER <= 11
Marshall Clowccaa0fb2013-08-27 20:18:59 +0000854#define _LIBCPP_EXPLICIT_AFTER_CXX11
Marshall Clowa2cbe0d2013-09-28 18:35:31 +0000855#define _LIBCPP_DEPRECATED_AFTER_CXX11
Marshall Clow1045cee2013-07-15 14:57:19 +0000856#else
Marshall Clowccaa0fb2013-08-27 20:18:59 +0000857#define _LIBCPP_EXPLICIT_AFTER_CXX11 explicit
Marshall Clowa2cbe0d2013-09-28 18:35:31 +0000858#define _LIBCPP_DEPRECATED_AFTER_CXX11 [[deprecated]]
Marshall Clow1045cee2013-07-15 14:57:19 +0000859#endif
860
Eric Fiselierb4c0c662014-07-17 05:16:18 +0000861#if _LIBCPP_STD_VER > 11 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR)
862#define _LIBCPP_CONSTEXPR_AFTER_CXX11 constexpr
863#else
864#define _LIBCPP_CONSTEXPR_AFTER_CXX11
865#endif
866
Eric Fiselier0b3bfbe2016-03-17 03:30:56 +0000867#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR)
868#define _LIBCPP_CONSTEXPR_AFTER_CXX14 constexpr
869#else
870#define _LIBCPP_CONSTEXPR_AFTER_CXX14
871#endif
872
Eric Fiseliere4837422016-11-17 20:08:43 +0000873// FIXME: Remove all usages of this macro once compilers catch up.
874#if !defined(__cpp_inline_variables) || (__cpp_inline_variables < 201606L)
875# define _LIBCPP_HAS_NO_INLINE_VARIABLES
876#endif
877
Dimitry Andric830fb602015-08-19 06:43:33 +0000878#ifdef _LIBCPP_HAS_NO_RVALUE_REFERENCES
879# define _LIBCPP_EXPLICIT_MOVE(x) _VSTD::move(x)
880#else
881# define _LIBCPP_EXPLICIT_MOVE(x) (x)
882#endif
883
Marshall Clow2cd9d372014-05-08 14:14:06 +0000884#ifndef _LIBCPP_HAS_NO_ASAN
Eric Fiselier6a213162016-12-23 20:03:52 +0000885_LIBCPP_FUNC_VIS extern "C" void __sanitizer_annotate_contiguous_container(
Marshall Clow2cd9d372014-05-08 14:14:06 +0000886 const void *, const void *, const void *, const void *);
887#endif
888
Howard Hinnant13087882013-10-04 21:24:21 +0000889// Try to find out if RTTI is disabled.
890// g++ and cl.exe have RTTI on by default and define a macro when it is.
891// g++ only defines the macro in 4.3.2 and onwards.
892#if !defined(_LIBCPP_NO_RTTI)
Marshall Clowb63146c2015-09-22 21:58:30 +0000893# if defined(__GNUC__) && ((__GNUC__ >= 5) || (__GNUC__ == 4 && \
Alexey Volkov51353fd2014-09-03 14:30:39 +0000894 (__GNUC_MINOR__ >= 3 || __GNUC_PATCHLEVEL__ >= 2))) && !defined(__GXX_RTTI)
Howard Hinnant13087882013-10-04 21:24:21 +0000895# define _LIBCPP_NO_RTTI
896# elif (defined(_MSC_VER) && !defined(__clang__)) && !defined(_CPPRTTI)
897# define _LIBCPP_NO_RTTI
898# endif
899#endif
900
Howard Hinnant33f04722013-10-04 23:56:37 +0000901#ifndef _LIBCPP_WEAK
902# define _LIBCPP_WEAK __attribute__((__weak__))
903#endif
904
Asiri Rathnayakefa2e2032016-05-06 14:06:29 +0000905// Thread API
Eric Fiselierbfd45532017-01-06 23:15:16 +0000906#if !defined(_LIBCPP_HAS_NO_THREADS) && \
907 !defined(_LIBCPP_HAS_THREAD_API_PTHREAD)
Asiri Rathnayakefa2e2032016-05-06 14:06:29 +0000908# if defined(__FreeBSD__) || \
Petr Hosek34a54552016-10-10 18:53:32 +0000909 defined(__Fuchsia__) || \
Asiri Rathnayakefa2e2032016-05-06 14:06:29 +0000910 defined(__NetBSD__) || \
911 defined(__linux__) || \
912 defined(__APPLE__) || \
Eric Fiselier7ad718a2016-05-07 17:05:46 +0000913 defined(__CloudABI__) || \
914 defined(__sun__)
Eric Fiselierbfd45532017-01-06 23:15:16 +0000915# define _LIBCPP_HAS_THREAD_API_PTHREAD
Asiri Rathnayakefa2e2032016-05-06 14:06:29 +0000916# else
917# error "No thread API"
Ben Craig5593c4f2016-05-25 17:40:09 +0000918# endif // _LIBCPP_HAS_THREAD_API
Asiri Rathnayakefa2e2032016-05-06 14:06:29 +0000919#endif // _LIBCPP_HAS_NO_THREADS
920
Ben Craig5593c4f2016-05-25 17:40:09 +0000921#if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_PTHREAD)
922# error _LIBCPP_HAS_THREAD_API_PTHREAD may only be defined when \
923 _LIBCPP_HAS_NO_THREADS is not defined.
924#endif
Asiri Rathnayakefa2e2032016-05-06 14:06:29 +0000925
Asiri Rathnayake94340d22016-09-11 21:46:40 +0000926#if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_EXTERNAL)
927# error _LIBCPP_HAS_EXTERNAL_THREAD_API may not be defined when \
928 _LIBCPP_HAS_NO_THREADS is defined.
929#endif
930
Eric Fiselier715b4162014-12-06 20:09:11 +0000931#if defined(_LIBCPP_HAS_NO_MONOTONIC_CLOCK) && !defined(_LIBCPP_HAS_NO_THREADS)
932# error _LIBCPP_HAS_NO_MONOTONIC_CLOCK may only be defined when \
933 _LIBCPP_HAS_NO_THREADS is defined.
934#endif
935
Ed Schouten7009f4e2015-03-12 15:44:39 +0000936// Systems that use capability-based security (FreeBSD with Capsicum,
937// Nuxi CloudABI) may only provide local filesystem access (using *at()).
938// Functions like open(), rename(), unlink() and stat() should not be
939// used, as they attempt to access the global filesystem namespace.
940#ifdef __CloudABI__
941#define _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE
942#endif
943
Ed Schouten3a75c0b2015-03-26 14:35:46 +0000944// CloudABI is intended for running networked services. Processes do not
945// have standard input and output channels.
946#ifdef __CloudABI__
947#define _LIBCPP_HAS_NO_STDIN
948#define _LIBCPP_HAS_NO_STDOUT
949#endif
950
Dan Albert21800dc2016-09-19 18:00:45 +0000951#if defined(__BIONIC__) || defined(__CloudABI__) || \
952 defined(_LIBCPP_HAS_MUSL_LIBC)
Dan Albertebdf28b2015-03-11 00:51:06 +0000953#define _LIBCPP_PROVIDES_DEFAULT_RUNE_TABLE
954#endif
955
Ed Schoutena810d5e2016-12-30 10:44:00 +0000956// Thread-unsafe functions such as strtok() and localtime()
Ed Schouten137c8632015-06-24 08:44:38 +0000957// are not available.
958#ifdef __CloudABI__
959#define _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS
960#endif
961
Eric Fiselier8174ac12015-09-22 03:15:35 +0000962#if __has_feature(cxx_atomic) || __has_extension(c_atomic)
Eric Fiselier8020b6c2015-08-19 17:21:46 +0000963#define _LIBCPP_HAS_C_ATOMIC_IMP
964#elif _GNUC_VER > 407
965#define _LIBCPP_HAS_GCC_ATOMIC_IMP
966#endif
967
968#if (!defined(_LIBCPP_HAS_C_ATOMIC_IMP) && !defined(_LIBCPP_HAS_GCC_ATOMIC_IMP)) \
969 || defined(_LIBCPP_HAS_NO_THREADS)
970#define _LIBCPP_HAS_NO_ATOMIC_HEADER
971#endif
972
Marshall Clow91c7f642016-01-11 19:27:10 +0000973#ifndef _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK
974#define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK
Eric Fiselier100e24b2016-02-11 11:59:44 +0000975#endif
976
Eric Fiselierc0c6c982016-03-16 02:30:06 +0000977#if (defined(_LIBCPP_ENABLE_THREAD_SAFETY_ANNOTATIONS) && defined(__clang__) \
978 && __has_attribute(acquire_capability))
979#define _LIBCPP_HAS_THREAD_SAFETY_ANNOTATIONS
980#endif
981
Eric Fiselier0d3da632016-09-03 00:11:33 +0000982#if __has_attribute(require_constant_initialization)
983#define _LIBCPP_SAFE_STATIC __attribute__((__require_constant_initialization__))
984#else
985#define _LIBCPP_SAFE_STATIC
986#endif
987
Eric Fiselierd4ec6352016-10-12 07:46:20 +0000988#if !__has_builtin(__builtin_addressof) && _GNUC_VER < 700
989#define _LIBCPP_HAS_NO_BUILTIN_ADDRESSOF
990#endif
991
Shoaib Meenai3879c9b2016-10-31 15:09:10 +0000992#if !defined(_LIBCPP_HAS_NO_OFF_T_FUNCTIONS)
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000993#if defined(_LIBCPP_MSVCRT) || defined(_NEWLIB_VERSION)
Shoaib Meenai3879c9b2016-10-31 15:09:10 +0000994#define _LIBCPP_HAS_NO_OFF_T_FUNCTIONS
995#endif
996#endif
997
Eric Fiseliera80af822015-11-06 06:30:12 +0000998#endif // __cplusplus
999
Eric Fiselier8020b6c2015-08-19 17:21:46 +00001000#endif // _LIBCPP_CONFIG