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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__)
Saleem Abdulrasoolf154c772017-01-29 18:16:33 +000015#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
Eric Fiseliera80af822015-11-06 06:30:12 +000016#define _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER
17#endif
Saleem Abdulrasoolf154c772017-01-29 18:16:33 +000018#endif
Eric Fiseliera80af822015-11-06 06:30:12 +000019
20#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER
Howard Hinnantc51e1022010-05-11 19:42:16 +000021#pragma GCC system_header
Howard Hinnantaaaa52b2011-10-17 20:05:10 +000022#endif
Howard Hinnantc51e1022010-05-11 19:42:16 +000023
Eric Fiseliera80af822015-11-06 06:30:12 +000024#ifdef __cplusplus
25
Howard Hinnantcafe7172012-10-03 20:48:05 +000026#ifdef __GNUC__
27#define _GNUC_VER (__GNUC__ * 100 + __GNUC_MINOR__)
Eric Fiselierc9a0e822017-04-12 23:08:46 +000028// 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__)
Eric Fiselier7d223172015-06-13 02:18:44 +000031#else
32#define _GNUC_VER 0
Eric Fiselierc9a0e822017-04-12 23:08:46 +000033#define _GNUC_VER_NEW 0
Howard Hinnantcafe7172012-10-03 20:48:05 +000034#endif
35
Hans Wennborg7784afd2017-07-19 13:57:10 +000036#define _LIBCPP_VERSION 6000
Howard Hinnantc51e1022010-05-11 19:42:16 +000037
Evgeniy Stepanovda2ff7e2015-10-13 23:48:28 +000038#ifndef _LIBCPP_ABI_VERSION
Howard Hinnantc51e1022010-05-11 19:42:16 +000039#define _LIBCPP_ABI_VERSION 1
Evgeniy Stepanovda2ff7e2015-10-13 23:48:28 +000040#endif
41
Shoaib Meenai5c2d4012017-04-12 19:56:37 +000042#if defined(__ELF__)
43#define _LIBCPP_OBJECT_FORMAT_ELF 1
44#elif defined(__MACH__)
45#define _LIBCPP_OBJECT_FORMAT_MACHO 1
46#elif defined(_WIN32)
47#define _LIBCPP_OBJECT_FORMAT_COFF 1
48#else
49#error Unknown object file format
50#endif
51
Evgeniy Stepanovda2ff7e2015-10-13 23:48:28 +000052#if defined(_LIBCPP_ABI_UNSTABLE) || _LIBCPP_ABI_VERSION >= 2
Shoaib Meenai4bdf4372016-09-12 20:14:44 +000053// Change short string representation so that string data starts at offset 0,
Evgeniy Stepanovc299de22015-11-06 22:02:29 +000054// improving its alignment in some cases.
Evgeniy Stepanovda2ff7e2015-10-13 23:48:28 +000055#define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT
Evgeniy Stepanovc299de22015-11-06 22:02:29 +000056// Fix deque iterator type in order to support incomplete types.
57#define _LIBCPP_ABI_INCOMPLETE_TYPES_IN_DEQUE
Nico Weberd31c3ab2017-07-22 15:16:42 +000058// Fix undefined behavior in how std::list stores its linked nodes.
Eric Fiselier696b44f2015-12-30 20:57:59 +000059#define _LIBCPP_ABI_LIST_REMOVE_NODE_POINTER_UB
Eric Fiselier70f5f872016-07-19 17:56:20 +000060// Fix undefined behavior in how __tree stores its end and parent nodes.
61#define _LIBCPP_ABI_TREE_REMOVE_NODE_POINTER_UB
Nico Weberd31c3ab2017-07-22 15:16:42 +000062// Fix undefined behavior in how __hash_table stores its pointer types.
Eric Fiselierd8f24a42016-07-23 20:36:55 +000063#define _LIBCPP_ABI_FIX_UNORDERED_NODE_POINTER_UB
Eric Fiselierfbb66132016-01-27 00:11:54 +000064#define _LIBCPP_ABI_FORWARD_LIST_REMOVE_NODE_POINTER_UB
Eric Fiselier7cb64a02016-02-10 20:46:23 +000065#define _LIBCPP_ABI_FIX_UNORDERED_CONTAINER_SIZE_TYPE
Eric Fiselierf38846d2016-12-28 11:09:18 +000066// Don't use a nullptr_t simulation type in C++03 instead using C++11 nullptr
Eric Fiselier83e3ee02016-12-28 09:50:23 +000067// 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
Eric Fiselierab6bb302017-01-05 01:15:42 +000070// 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
73// in C++03.
74#define _LIBCPP_ABI_POINTER_SAFETY_ENUM_TYPE
Shoaib Meenaic130eaf2017-03-28 19:33:31 +000075// 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
Aditya Kumaraa866182017-06-14 23:17:45 +000079
80// Enable optimized version of __do_get_(un)signed which avoids redundant copies.
81#define _LIBCPP_ABI_OPTIMIZED_LOCALE_NUM_GET
Eric Fiselier08f7fe82016-07-18 01:58:37 +000082#elif _LIBCPP_ABI_VERSION == 1
Shoaib Meenai5c2d4012017-04-12 19:56:37 +000083#if !defined(_LIBCPP_OBJECT_FORMAT_COFF)
Eric Fiselier98848572017-01-17 03:16:26 +000084// Enable compiling copies of now inline methods into the dylib to support
Shoaib Meenai5c2d4012017-04-12 19:56:37 +000085// applications compiled against older libraries. This is unnecessary with
86// COFF dllexport semantics, since dllexport forces a non-inline definition
87// of inline functions to be emitted anyway. Our own non-inline copy would
88// conflict with the dllexport-emitted copy, so we disable it.
Eric Fiselier98848572017-01-17 03:16:26 +000089#define _LIBCPP_DEPRECATED_ABI_LEGACY_LIBRARY_DEFINITIONS_FOR_INLINE_FUNCTIONS
Eric Fiselierfd0ef992017-01-02 22:17:51 +000090#endif
Eric Fiselier08f7fe82016-07-18 01:58:37 +000091// Feature macros for disabling pre ABI v1 features. All of these options
92// are deprecated.
93#if defined(__FreeBSD__)
94#define _LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR
95#endif
96#endif
97
98#ifdef _LIBCPP_TRIVIAL_PAIR_COPY_CTOR
99#error "_LIBCPP_TRIVIAL_PAIR_COPY_CTOR" is no longer supported. \
100 use _LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR instead
Evgeniy Stepanovda2ff7e2015-10-13 23:48:28 +0000101#endif
Howard Hinnantc51e1022010-05-11 19:42:16 +0000102
103#define _LIBCPP_CONCAT1(_LIBCPP_X,_LIBCPP_Y) _LIBCPP_X##_LIBCPP_Y
104#define _LIBCPP_CONCAT(_LIBCPP_X,_LIBCPP_Y) _LIBCPP_CONCAT1(_LIBCPP_X,_LIBCPP_Y)
105
106#define _LIBCPP_NAMESPACE _LIBCPP_CONCAT(__,_LIBCPP_ABI_VERSION)
107
Eric Fiselierc6f17cc2016-09-25 03:34:28 +0000108#if __cplusplus < 201103L
109#define _LIBCPP_CXX03_LANG
110#endif
Eric Fiselier86fcc922015-07-10 20:26:38 +0000111
112#ifndef __has_attribute
113#define __has_attribute(__x) 0
114#endif
115#ifndef __has_builtin
116#define __has_builtin(__x) 0
117#endif
Eric Fiselier8020b6c2015-08-19 17:21:46 +0000118#ifndef __has_extension
119#define __has_extension(__x) 0
120#endif
Eric Fiselier86fcc922015-07-10 20:26:38 +0000121#ifndef __has_feature
122#define __has_feature(__x) 0
123#endif
124// '__is_identifier' returns '0' if '__x' is a reserved identifier provided by
125// the compiler and '1' otherwise.
126#ifndef __is_identifier
127#define __is_identifier(__x) 1
128#endif
Eric Fiseliere3cec5f2017-01-16 21:15:08 +0000129#ifndef __has_declspec_attribute
130#define __has_declspec_attribute(__x) 0
131#endif
Eric Fiselier86fcc922015-07-10 20:26:38 +0000132
Eric Fiselierba725072017-01-14 04:27:58 +0000133#define __has_keyword(__x) !(__is_identifier(__x))
134
Eric Fiselierd8a6c892017-05-10 21:34:58 +0000135#ifdef __has_include
136#define __libcpp_has_include(__x) __has_include(__x)
137#else
138#define __libcpp_has_include(__x) 0
139#endif
140
Eric Fiselier8fbccea2017-01-06 21:42:58 +0000141#if defined(__clang__)
142#define _LIBCPP_COMPILER_CLANG
Eric Fiselier73409252017-01-23 21:41:13 +0000143# ifndef __apple_build_version__
144# define _LIBCPP_CLANG_VER (__clang_major__ * 100 + __clang_minor__)
145# endif
Eric Fiselier8fbccea2017-01-06 21:42:58 +0000146#elif defined(__GNUC__)
147#define _LIBCPP_COMPILER_GCC
148#elif defined(_MSC_VER)
149#define _LIBCPP_COMPILER_MSVC
150#elif defined(__IBMCPP__)
151#define _LIBCPP_COMPILER_IBM
152#endif
153
Eric Fiselier73409252017-01-23 21:41:13 +0000154#ifndef _LIBCPP_CLANG_VER
155#define _LIBCPP_CLANG_VER 0
156#endif
157
Eric Fiseliera6d96342017-01-07 02:43:58 +0000158// FIXME: ABI detection should be done via compiler builtin macros. This
159// is just a placeholder until Clang implements such macros. For now assume
Shoaib Meenai69cebe72017-10-04 23:44:38 +0000160// that Windows compilers pretending to be MSVC++ target the Microsoft ABI,
161// and allow the user to explicitly specify the ABI to handle cases where this
162// heuristic falls short.
Shoaib Meenai56943f82017-10-05 02:18:08 +0000163#if defined(_LIBCPP_ABI_FORCE_ITANIUM) && defined(_LIBCPP_ABI_FORCE_MICROSOFT)
164# error "Only one of _LIBCPP_ABI_FORCE_ITANIUM and _LIBCPP_ABI_FORCE_MICROSOFT can be defined"
165#elif defined(_LIBCPP_ABI_FORCE_ITANIUM)
166# define _LIBCPP_ABI_ITANIUM
167#elif defined(_LIBCPP_ABI_FORCE_MICROSOFT)
168# define _LIBCPP_ABI_MICROSOFT
169#else
Shoaib Meenai69cebe72017-10-04 23:44:38 +0000170# if defined(_WIN32) && defined(_MSC_VER)
171# define _LIBCPP_ABI_MICROSOFT
172# else
173# define _LIBCPP_ABI_ITANIUM
174# endif
Eric Fiseliera6d96342017-01-07 02:43:58 +0000175#endif
176
Dan Albert21800dc2016-09-19 18:00:45 +0000177// Need to detect which libc we're using if we're on Linux.
178#if defined(__linux__)
179#include <features.h>
180#if !defined(__GLIBC_PREREQ)
181#define __GLIBC_PREREQ(a, b) 0
182#endif // !defined(__GLIBC_PREREQ)
183#endif // defined(__linux__)
Eric Fiselier86fcc922015-07-10 20:26:38 +0000184
Howard Hinnantc51e1022010-05-11 19:42:16 +0000185#ifdef __LITTLE_ENDIAN__
186#if __LITTLE_ENDIAN__
Eric Fiseliere9cc5922017-10-17 13:16:01 +0000187#define _LIBCPP_LITTLE_ENDIAN
Howard Hinnant3b6579a2010-08-22 00:02:43 +0000188#endif // __LITTLE_ENDIAN__
189#endif // __LITTLE_ENDIAN__
Howard Hinnantc51e1022010-05-11 19:42:16 +0000190
191#ifdef __BIG_ENDIAN__
192#if __BIG_ENDIAN__
Eric Fiseliere9cc5922017-10-17 13:16:01 +0000193#define _LIBCPP_BIG_ENDIAN
Howard Hinnant3b6579a2010-08-22 00:02:43 +0000194#endif // __BIG_ENDIAN__
195#endif // __BIG_ENDIAN__
Howard Hinnantc51e1022010-05-11 19:42:16 +0000196
Dan Albert98d97792015-09-16 18:10:47 +0000197#ifdef __BYTE_ORDER__
198#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
Eric Fiseliere9cc5922017-10-17 13:16:01 +0000199#define _LIBCPP_LITTLE_ENDIAN
Dan Albert98d97792015-09-16 18:10:47 +0000200#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
Eric Fiseliere9cc5922017-10-17 13:16:01 +0000201#define _LIBCPP_BIG_ENDIAN
Dan Albert98d97792015-09-16 18:10:47 +0000202#endif // __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
203#endif // __BYTE_ORDER__
204
David Chisnall93008f02010-08-11 16:27:20 +0000205#ifdef __FreeBSD__
206# include <sys/endian.h>
207# if _BYTE_ORDER == _LITTLE_ENDIAN
Eric Fiseliere9cc5922017-10-17 13:16:01 +0000208# define _LIBCPP_LITTLE_ENDIAN
Howard Hinnant3b6579a2010-08-22 00:02:43 +0000209# else // _BYTE_ORDER == _LITTLE_ENDIAN
Eric Fiseliere9cc5922017-10-17 13:16:01 +0000210# define _LIBCPP_BIG_ENDIAN
Howard Hinnant3b6579a2010-08-22 00:02:43 +0000211# endif // _BYTE_ORDER == _LITTLE_ENDIAN
Howard Hinnant13830352012-11-26 21:18:17 +0000212# ifndef __LONG_LONG_SUPPORTED
213# define _LIBCPP_HAS_NO_LONG_LONG
214# endif // __LONG_LONG_SUPPORTED
Howard Hinnant3b6579a2010-08-22 00:02:43 +0000215#endif // __FreeBSD__
David Chisnall93008f02010-08-11 16:27:20 +0000216
Joerg Sonnenberger153e4162013-05-17 21:17:34 +0000217#ifdef __NetBSD__
218# include <sys/endian.h>
219# if _BYTE_ORDER == _LITTLE_ENDIAN
Eric Fiseliere9cc5922017-10-17 13:16:01 +0000220# define _LIBCPP_LITTLE_ENDIAN
Joerg Sonnenberger153e4162013-05-17 21:17:34 +0000221# else // _BYTE_ORDER == _LITTLE_ENDIAN
Eric Fiseliere9cc5922017-10-17 13:16:01 +0000222# define _LIBCPP_BIG_ENDIAN
Joerg Sonnenberger153e4162013-05-17 21:17:34 +0000223# endif // _BYTE_ORDER == _LITTLE_ENDIAN
224# define _LIBCPP_HAS_QUICK_EXIT
225#endif // __NetBSD__
226
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000227#if defined(_WIN32)
Eric Fiselierbb999f92017-05-31 22:14:05 +0000228# define _LIBCPP_WIN32API
Eric Fiseliere9cc5922017-10-17 13:16:01 +0000229# define _LIBCPP_LITTLE_ENDIAN
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000230# define _LIBCPP_SHORT_WCHAR 1
Eric Fiselierbb999f92017-05-31 22:14:05 +0000231// Both MinGW and native MSVC provide a "MSVC"-like enviroment
232# define _LIBCPP_MSVCRT_LIKE
Bruno Cardoso Lopes91572682017-07-17 21:52:31 +0000233// If mingw not explicitly detected, assume using MS C runtime only if
234// a MS compatibility version is specified.
235# if defined(_MSC_VER) && !defined(__MINGW32__)
Howard Hinnant8ad70912013-09-17 01:34:47 +0000236# define _LIBCPP_MSVCRT // Using Microsoft's C Runtime library
237# endif
Saleem Abdulrasool32300ca2017-01-04 01:53:24 +0000238# if (defined(_M_AMD64) || defined(__x86_64__)) || (defined(_M_ARM) || defined(__arm__))
239# define _LIBCPP_HAS_BITSCAN64
240# endif
Eric Fiselier600a98e2017-01-19 23:48:05 +0000241# if defined(_LIBCPP_MSVCRT)
242# define _LIBCPP_HAS_QUICK_EXIT
243# endif
Shoaib Meenaie2ce3602017-04-06 04:47:49 +0000244
245// Some CRT APIs are unavailable to store apps
246#if defined(WINAPI_FAMILY)
247#include <winapifamily.h>
248#if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) && \
249 (!defined(WINAPI_PARTITION_SYSTEM) || \
250 !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_SYSTEM))
251#define _LIBCPP_WINDOWS_STORE_APP
252#endif
253#endif
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000254#endif // defined(_WIN32)
Howard Hinnant34bad2a2011-05-13 17:16:06 +0000255
David Chisnall8074c342012-02-29 13:05:08 +0000256#ifdef __sun__
257# include <sys/isa_defs.h>
258# ifdef _LITTLE_ENDIAN
Eric Fiseliere9cc5922017-10-17 13:16:01 +0000259# define _LIBCPP_LITTLE_ENDIAN
David Chisnall8074c342012-02-29 13:05:08 +0000260# else
Eric Fiseliere9cc5922017-10-17 13:16:01 +0000261# define _LIBCPP_BIG_ENDIAN
David Chisnall8074c342012-02-29 13:05:08 +0000262# endif
263#endif // __sun__
264
Ed Schoutendcf37402015-03-10 07:46:06 +0000265#if defined(__CloudABI__)
266 // Certain architectures provide arc4random(). Prefer using
267 // arc4random() over /dev/{u,}random to make it possible to obtain
268 // random data even when using sandboxing mechanisms such as chroots,
269 // Capsicum, etc.
270# define _LIBCPP_USING_ARC4_RANDOM
271#elif defined(__native_client__)
JF Bastiend4832032014-12-01 19:19:55 +0000272 // NaCl's sandbox (which PNaCl also runs in) doesn't allow filesystem access,
273 // including accesses to the special files under /dev. C++11's
274 // std::random_device is instead exposed through a NaCl syscall.
275# define _LIBCPP_USING_NACL_RANDOM
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000276#elif defined(_LIBCPP_WIN32API)
Ed Schoutendcf37402015-03-10 07:46:06 +0000277# define _LIBCPP_USING_WIN32_RANDOM
278#else
279# define _LIBCPP_USING_DEV_RANDOM
280#endif
JF Bastiend4832032014-12-01 19:19:55 +0000281
Eric Fiseliere9cc5922017-10-17 13:16:01 +0000282#if !defined(_LIBCPP_LITTLE_ENDIAN) && !defined(_LIBCPP_BIG_ENDIAN)
Howard Hinnant155c2af2010-05-24 17:49:41 +0000283# include <endian.h>
284# if __BYTE_ORDER == __LITTLE_ENDIAN
Eric Fiseliere9cc5922017-10-17 13:16:01 +0000285# define _LIBCPP_LITTLE_ENDIAN
Howard Hinnant155c2af2010-05-24 17:49:41 +0000286# elif __BYTE_ORDER == __BIG_ENDIAN
Eric Fiseliere9cc5922017-10-17 13:16:01 +0000287# define _LIBCPP_BIG_ENDIAN
Howard Hinnant3b6579a2010-08-22 00:02:43 +0000288# else // __BYTE_ORDER == __BIG_ENDIAN
Howard Hinnant155c2af2010-05-24 17:49:41 +0000289# error unable to determine endian
290# endif
Eric Fiseliere9cc5922017-10-17 13:16:01 +0000291#endif // !defined(_LIBCPP_LITTLE_ENDIAN) && !defined(_LIBCPP_BIG_ENDIAN)
Howard Hinnantc51e1022010-05-11 19:42:16 +0000292
Eric Fiselier02cba002017-06-15 03:50:02 +0000293#if __has_attribute(__no_sanitize__) && !defined(_LIBCPP_COMPILER_GCC)
Evgeniy Stepanov076b2372016-02-10 21:53:28 +0000294#define _LIBCPP_NO_CFI __attribute__((__no_sanitize__("cfi")))
295#else
296#define _LIBCPP_NO_CFI
297#endif
298
Eric Fiselier8fbccea2017-01-06 21:42:58 +0000299#if defined(_LIBCPP_COMPILER_CLANG)
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000300
Evgeniy Stepanovda2ff7e2015-10-13 23:48:28 +0000301// _LIBCPP_ALTERNATE_STRING_LAYOUT is an old name for
302// _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT left here for backward compatibility.
303#if (defined(__APPLE__) && !defined(__i386__) && !defined(__x86_64__) && \
Mehdi Aminia807b112017-04-06 01:10:22 +0000304 (!defined(__arm__) || __ARM_ARCH_7K__ >= 2)) || \
Evgeniy Stepanovda2ff7e2015-10-13 23:48:28 +0000305 defined(_LIBCPP_ALTERNATE_STRING_LAYOUT)
306#define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT
Tim Northoverffc95932014-03-30 11:34:22 +0000307#endif
308
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000309#if __has_feature(cxx_alignas)
Howard Hinnant62cad692012-05-31 19:31:14 +0000310# define _ALIGNAS_TYPE(x) alignas(x)
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000311# define _ALIGNAS(x) alignas(x)
312#else
Howard Hinnant076b28c2012-05-31 20:14:00 +0000313# define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x))))
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000314# define _ALIGNAS(x) __attribute__((__aligned__(x)))
315#endif
316
Marshall Clow2b12c312014-02-22 15:13:48 +0000317#if __cplusplus < 201103L
Howard Hinnant31cd14f2010-09-16 23:27:26 +0000318typedef __char16_t char16_t;
319typedef __char32_t char32_t;
Howard Hinnant8e6a3982010-09-07 20:31:18 +0000320#endif
Howard Hinnant74279a52010-09-04 23:28:19 +0000321
Weiming Zhao9fe43d52016-04-21 05:28:18 +0000322#if !(__has_feature(cxx_exceptions)) && !defined(_LIBCPP_NO_EXCEPTIONS)
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000323#define _LIBCPP_NO_EXCEPTIONS
324#endif
325
Eric Fiseliered2099d2017-05-04 01:06:54 +0000326#if !(__has_feature(cxx_rtti)) && !defined(_LIBCPP_NO_RTTI)
Howard Hinnant72f73582010-08-11 17:04:31 +0000327#define _LIBCPP_NO_RTTI
328#endif
329
Howard Hinnant09bc0c92011-12-02 19:36:40 +0000330#if !(__has_feature(cxx_strong_enums))
331#define _LIBCPP_HAS_NO_STRONG_ENUMS
332#endif
333
Howard Hinnant74279a52010-09-04 23:28:19 +0000334#if !(__has_feature(cxx_decltype))
335#define _LIBCPP_HAS_NO_DECLTYPE
336#endif
337
Howard Hinnant8df96292011-05-26 17:07:32 +0000338#if __has_feature(cxx_attributes)
Richard Smithcabd3922012-07-26 02:04:22 +0000339# define _LIBCPP_NORETURN [[noreturn]]
Howard Hinnant8df96292011-05-26 17:07:32 +0000340#else
Richard Smithcabd3922012-07-26 02:04:22 +0000341# define _LIBCPP_NORETURN __attribute__ ((noreturn))
Howard Hinnant74279a52010-09-04 23:28:19 +0000342#endif
343
Howard Hinnant74279a52010-09-04 23:28:19 +0000344#if !(__has_feature(cxx_lambdas))
345#define _LIBCPP_HAS_NO_LAMBDAS
346#endif
347
348#if !(__has_feature(cxx_nullptr))
Eric Fiselierba725072017-01-14 04:27:58 +0000349# if (__has_extension(cxx_nullptr) || __has_keyword(__nullptr)) && defined(_LIBCPP_ABI_ALWAYS_USE_CXX11_NULLPTR)
Eric Fiselier83e3ee02016-12-28 09:50:23 +0000350# define nullptr __nullptr
351# else
352# define _LIBCPP_HAS_NO_NULLPTR
353# endif
Howard Hinnant74279a52010-09-04 23:28:19 +0000354#endif
355
356#if !(__has_feature(cxx_rvalue_references))
357#define _LIBCPP_HAS_NO_RVALUE_REFERENCES
358#endif
359
Howard Hinnant74279a52010-09-04 23:28:19 +0000360#if !(__has_feature(cxx_auto_type))
361#define _LIBCPP_HAS_NO_AUTO_TYPE
Howard Hinnant986832c2011-07-29 21:35:53 +0000362#endif
363
Howard Hinnant74279a52010-09-04 23:28:19 +0000364#if !(__has_feature(cxx_variadic_templates))
365#define _LIBCPP_HAS_NO_VARIADICS
366#endif
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000367
Howard Hinnant33711792011-08-12 21:56:02 +0000368#if !(__has_feature(cxx_generalized_initializers))
369#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
370#endif
371
Howard Hinnantdd0d7022011-09-22 19:10:18 +0000372#if __has_feature(is_base_of)
Howard Hinnant13d8bc12013-08-01 18:17:34 +0000373# define _LIBCPP_HAS_IS_BASE_OF
Howard Hinnantdd0d7022011-09-22 19:10:18 +0000374#endif
375
Eric Fiselierf7394302015-06-13 07:08:02 +0000376#if __has_feature(is_final)
377# define _LIBCPP_HAS_IS_FINAL
378#endif
379
Douglas Gregor13034442011-06-22 22:17:44 +0000380// Objective-C++ features (opt-in)
381#if __has_feature(objc_arc)
382#define _LIBCPP_HAS_OBJC_ARC
383#endif
384
385#if __has_feature(objc_arc_weak)
386#define _LIBCPP_HAS_OBJC_ARC_WEAK
387#endif
388
Howard Hinnant62c8c0b2010-09-06 19:10:31 +0000389#if !(__has_feature(cxx_constexpr))
390#define _LIBCPP_HAS_NO_CONSTEXPR
391#endif
392
Eric Fiselierb4c0c662014-07-17 05:16:18 +0000393#if !(__has_feature(cxx_relaxed_constexpr))
394#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR
395#endif
396
Marshall Clowfaae6982015-03-17 15:30:22 +0000397#if !(__has_feature(cxx_variable_templates))
398#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES
399#endif
400
David Blaikie97ab0022013-05-13 21:53:44 +0000401#if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L
402#if defined(__FreeBSD__)
David Chisnall277ad052012-03-14 14:10:37 +0000403#define _LIBCPP_HAS_QUICK_EXIT
Howard Hinnantcabc5a22012-10-13 18:03:53 +0000404#define _LIBCPP_HAS_C11_FEATURES
Petr Hosek34a54552016-10-10 18:53:32 +0000405#elif defined(__Fuchsia__)
406#define _LIBCPP_HAS_QUICK_EXIT
407#define _LIBCPP_HAS_C11_FEATURES
David Blaikie97ab0022013-05-13 21:53:44 +0000408#elif defined(__linux__)
Vasileios Kalintiris281b4cf2015-11-09 10:21:04 +0000409#if !defined(_LIBCPP_HAS_MUSL_LIBC)
Dan Albert21800dc2016-09-19 18:00:45 +0000410#if __GLIBC_PREREQ(2, 15) || defined(__BIONIC__)
David Blaikie97ab0022013-05-13 21:53:44 +0000411#define _LIBCPP_HAS_QUICK_EXIT
412#endif
413#if __GLIBC_PREREQ(2, 17)
414#define _LIBCPP_HAS_C11_FEATURES
415#endif
Vasileios Kalintiris281b4cf2015-11-09 10:21:04 +0000416#else // defined(_LIBCPP_HAS_MUSL_LIBC)
417#define _LIBCPP_HAS_QUICK_EXIT
418#define _LIBCPP_HAS_C11_FEATURES
David Blaikie97ab0022013-05-13 21:53:44 +0000419#endif
Vasileios Kalintiris281b4cf2015-11-09 10:21:04 +0000420#endif // __linux__
David Chisnall277ad052012-03-14 14:10:37 +0000421#endif
422
Eric Fiselier1af87ca2015-12-15 22:16:47 +0000423#if !(__has_feature(cxx_noexcept))
424#define _LIBCPP_HAS_NO_NOEXCEPT
Howard Hinnant68d13392011-05-11 20:19:40 +0000425#endif
426
Alexis Hunt43b6e8e2011-07-18 18:37:21 +0000427#if __has_feature(underlying_type)
Marshall Clow20723522014-06-26 01:07:56 +0000428# define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T)
429#endif
430
431#if __has_feature(is_literal)
432# define _LIBCPP_IS_LITERAL(T) __is_literal(T)
Alexis Hunt43b6e8e2011-07-18 18:37:21 +0000433#endif
434
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000435// Inline namespaces are available in Clang regardless of C++ dialect.
436#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE {
437#define _LIBCPP_END_NAMESPACE_STD } }
438#define _VSTD std::_LIBCPP_NAMESPACE
439
440namespace std {
441 inline namespace _LIBCPP_NAMESPACE {
442 }
443}
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000444
Marshall Clow90fc0472014-04-14 15:44:57 +0000445#if !defined(_LIBCPP_HAS_NO_ASAN) && !__has_feature(address_sanitizer)
446#define _LIBCPP_HAS_NO_ASAN
447#endif
448
Marshall Clow55b23d22016-01-12 00:38:04 +0000449// Allow for build-time disabling of unsigned integer sanitization
Jonathan Roelofs25463502016-01-13 23:27:08 +0000450#if !defined(_LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK) && __has_attribute(no_sanitize)
Saleem Abdulrasool38acb642016-02-09 04:05:37 +0000451#define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK __attribute__((__no_sanitize__("unsigned-integer-overflow")))
Marshall Clow55b23d22016-01-12 00:38:04 +0000452#endif
453
Eric Fiselier8fbccea2017-01-06 21:42:58 +0000454#elif defined(_LIBCPP_COMPILER_GCC)
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000455
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000456#define _ALIGNAS(x) __attribute__((__aligned__(x)))
Howard Hinnant67f75172012-08-19 17:14:47 +0000457#define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x))))
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000458
Richard Smithcabd3922012-07-26 02:04:22 +0000459#define _LIBCPP_NORETURN __attribute__((noreturn))
Howard Hinnant1e570a32011-05-31 13:13:49 +0000460
Marshall Clow20723522014-06-26 01:07:56 +0000461#if _GNUC_VER >= 407
462#define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T)
463#define _LIBCPP_IS_LITERAL(T) __is_literal_type(T)
Eric Fiselierf7394302015-06-13 07:08:02 +0000464#define _LIBCPP_HAS_IS_FINAL
465#endif
466
467#if defined(__GNUC__) && _GNUC_VER >= 403
468# define _LIBCPP_HAS_IS_BASE_OF
Marshall Clow20723522014-06-26 01:07:56 +0000469#endif
470
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000471#if !__EXCEPTIONS
472#define _LIBCPP_NO_EXCEPTIONS
473#endif
474
Nico Weberd04e4752014-06-04 15:46:56 +0000475// constexpr was added to GCC in 4.6.
476#if _GNUC_VER < 406
Howard Hinnant62c8c0b2010-09-06 19:10:31 +0000477#define _LIBCPP_HAS_NO_CONSTEXPR
Nico Weberd04e4752014-06-04 15:46:56 +0000478// Can only use constexpr in c++11 mode.
479#elif !defined(__GXX_EXPERIMENTAL_CXX0X__) && __cplusplus < 201103L
480#define _LIBCPP_HAS_NO_CONSTEXPR
481#endif
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000482
Marshall Clowe2be6332015-10-20 07:37:11 +0000483// Determine if GCC supports relaxed constexpr
484#if !defined(__cpp_constexpr) || __cpp_constexpr < 201304L
Eric Fiselierb4c0c662014-07-17 05:16:18 +0000485#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR
Marshall Clowe2be6332015-10-20 07:37:11 +0000486#endif
487
Marshall Clowfaae6982015-03-17 15:30:22 +0000488// GCC 5 will support variable templates
Eric Fiselier88f07122015-12-15 00:32:21 +0000489#if !defined(__cpp_variable_templates) || __cpp_variable_templates < 201304L
Marshall Clowfaae6982015-03-17 15:30:22 +0000490#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES
Eric Fiselier88f07122015-12-15 00:32:21 +0000491#endif
Eric Fiselierb4c0c662014-07-17 05:16:18 +0000492
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000493#ifndef __GXX_EXPERIMENTAL_CXX0X__
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000494#define _LIBCPP_HAS_NO_DECLTYPE
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000495#define _LIBCPP_HAS_NO_NULLPTR
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000496#define _LIBCPP_HAS_NO_UNICODE_CHARS
497#define _LIBCPP_HAS_NO_VARIADICS
Howard Hinnant74279a52010-09-04 23:28:19 +0000498#define _LIBCPP_HAS_NO_RVALUE_REFERENCES
Logan Chien5eb2ac42013-12-14 06:44:09 +0000499#define _LIBCPP_HAS_NO_STRONG_ENUMS
Eric Fiselier1af87ca2015-12-15 22:16:47 +0000500#define _LIBCPP_HAS_NO_NOEXCEPT
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000501
Howard Hinnant3b6579a2010-08-22 00:02:43 +0000502#else // __GXX_EXPERIMENTAL_CXX0X__
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000503
Howard Hinnantcafe7172012-10-03 20:48:05 +0000504#if _GNUC_VER < 403
Howard Hinnant74279a52010-09-04 23:28:19 +0000505#define _LIBCPP_HAS_NO_RVALUE_REFERENCES
Howard Hinnantc51e1022010-05-11 19:42:16 +0000506#endif
507
Eric Fiselierf825e1b2015-12-23 08:20:26 +0000508
Howard Hinnantcafe7172012-10-03 20:48:05 +0000509#if _GNUC_VER < 404
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000510#define _LIBCPP_HAS_NO_DECLTYPE
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000511#define _LIBCPP_HAS_NO_UNICODE_CHARS
512#define _LIBCPP_HAS_NO_VARIADICS
Howard Hinnant33711792011-08-12 21:56:02 +0000513#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
Howard Hinnantcafe7172012-10-03 20:48:05 +0000514#endif // _GNUC_VER < 404
Howard Hinnantc51e1022010-05-11 19:42:16 +0000515
Howard Hinnantcafe7172012-10-03 20:48:05 +0000516#if _GNUC_VER < 406
Eric Fiselier1af87ca2015-12-15 22:16:47 +0000517#define _LIBCPP_HAS_NO_NOEXCEPT
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000518#define _LIBCPP_HAS_NO_NULLPTR
Howard Hinnantc51e1022010-05-11 19:42:16 +0000519#endif
520
Howard Hinnant3b6579a2010-08-22 00:02:43 +0000521#endif // __GXX_EXPERIMENTAL_CXX0X__
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000522
Eric Fiselierd9498b32017-02-17 07:31:38 +0000523#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { inline namespace _LIBCPP_NAMESPACE {
Howard Hinnantc51e1022010-05-11 19:42:16 +0000524#define _LIBCPP_END_NAMESPACE_STD } }
Howard Hinnantb1ad5a82011-06-30 21:18:19 +0000525#define _VSTD std::_LIBCPP_NAMESPACE
Howard Hinnantc51e1022010-05-11 19:42:16 +0000526
527namespace std {
Eric Fiselierd9498b32017-02-17 07:31:38 +0000528 inline namespace _LIBCPP_NAMESPACE {
529 }
Howard Hinnantc51e1022010-05-11 19:42:16 +0000530}
531
Marshall Clow90fc0472014-04-14 15:44:57 +0000532#if !defined(_LIBCPP_HAS_NO_ASAN) && !defined(__SANITIZE_ADDRESS__)
533#define _LIBCPP_HAS_NO_ASAN
534#endif
535
Eric Fiselier8fbccea2017-01-06 21:42:58 +0000536#elif defined(_LIBCPP_COMPILER_MSVC)
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000537
Eric Fiselier8fbccea2017-01-06 21:42:58 +0000538#define _LIBCPP_TOSTRING2(x) #x
539#define _LIBCPP_TOSTRING(x) _LIBCPP_TOSTRING2(x)
540#define _LIBCPP_WARNING(x) __pragma(message(__FILE__ "(" _LIBCPP_TOSTRING(__LINE__) ") : warning note: " x))
541
542#if _MSC_VER < 1900
543#error "MSVC versions prior to Visual Studio 2015 are not supported"
544#endif
545
546#define _LIBCPP_HAS_IS_BASE_OF
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000547#define _LIBCPP_HAS_NO_CONSTEXPR
Eric Fiselierb4c0c662014-07-17 05:16:18 +0000548#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR
Marshall Clowfaae6982015-03-17 15:30:22 +0000549#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES
Saleem Abdulrasool37d0c4f2017-01-04 05:49:59 +0000550#if _MSC_VER <= 1800
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000551#define _LIBCPP_HAS_NO_UNICODE_CHARS
Saleem Abdulrasool37d0c4f2017-01-04 05:49:59 +0000552#endif
Eric Fiselier1af87ca2015-12-15 22:16:47 +0000553#define _LIBCPP_HAS_NO_NOEXCEPT
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000554#define __alignof__ __alignof
Richard Smithcabd3922012-07-26 02:04:22 +0000555#define _LIBCPP_NORETURN __declspec(noreturn)
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000556#define _ALIGNAS(x) __declspec(align(x))
557#define _LIBCPP_HAS_NO_VARIADICS
558
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000559#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {
560#define _LIBCPP_END_NAMESPACE_STD }
561#define _VSTD std
562
Howard Hinnant33f04722013-10-04 23:56:37 +0000563# define _LIBCPP_WEAK
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000564namespace std {
565}
566
Marshall Clow90fc0472014-04-14 15:44:57 +0000567#define _LIBCPP_HAS_NO_ASAN
568
Eric Fiselier8fbccea2017-01-06 21:42:58 +0000569#elif defined(_LIBCPP_COMPILER_IBM)
Howard Hinnantea382952013-08-14 18:00:20 +0000570
571#define _ALIGNAS(x) __attribute__((__aligned__(x)))
572#define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x))))
573#define _ATTRIBUTE(x) __attribute__((x))
574#define _LIBCPP_NORETURN __attribute__((noreturn))
575
Howard Hinnantea382952013-08-14 18:00:20 +0000576#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
Eric Fiselier1af87ca2015-12-15 22:16:47 +0000577#define _LIBCPP_HAS_NO_NOEXCEPT
Howard Hinnantea382952013-08-14 18:00:20 +0000578#define _LIBCPP_HAS_NO_NULLPTR
579#define _LIBCPP_HAS_NO_UNICODE_CHARS
Howard Hinnantea382952013-08-14 18:00:20 +0000580#define _LIBCPP_HAS_IS_BASE_OF
Eric Fiselierf7394302015-06-13 07:08:02 +0000581#define _LIBCPP_HAS_IS_FINAL
Marshall Clowfaae6982015-03-17 15:30:22 +0000582#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES
Howard Hinnantea382952013-08-14 18:00:20 +0000583
584#if defined(_AIX)
585#define __MULTILOCALE_API
586#endif
587
588#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE {
589#define _LIBCPP_END_NAMESPACE_STD } }
590#define _VSTD std::_LIBCPP_NAMESPACE
591
592namespace std {
593 inline namespace _LIBCPP_NAMESPACE {
594 }
595}
596
Marshall Clow90fc0472014-04-14 15:44:57 +0000597#define _LIBCPP_HAS_NO_ASAN
598
Eric Fiselier8fbccea2017-01-06 21:42:58 +0000599#endif // _LIBCPP_COMPILER_[CLANG|GCC|MSVC|IBM]
Howard Hinnantc51e1022010-05-11 19:42:16 +0000600
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000601#if defined(_LIBCPP_OBJECT_FORMAT_COFF)
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000602#if defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000603# define _LIBCPP_DLL_VIS
Shoaib Meenai5ac10672016-09-19 18:29:07 +0000604# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS
605# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS
Shoaib Meenai2d71db42016-11-16 22:18:10 +0000606# define _LIBCPP_OVERRIDABLE_FUNC_VIS
Eric Fiselier51e8d2f2016-09-26 22:19:41 +0000607#elif defined(_LIBCPP_BUILDING_LIBRARY)
608# define _LIBCPP_DLL_VIS __declspec(dllexport)
609# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS
610# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS _LIBCPP_DLL_VIS
Shoaib Meenai2d71db42016-11-16 22:18:10 +0000611# define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_DLL_VIS
Eric Fiselier51e8d2f2016-09-26 22:19:41 +0000612#else
613# define _LIBCPP_DLL_VIS __declspec(dllimport)
614# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS _LIBCPP_DLL_VIS
615# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS
Shoaib Meenai2d71db42016-11-16 22:18:10 +0000616# define _LIBCPP_OVERRIDABLE_FUNC_VIS
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000617#endif
Eric Fiselier51e8d2f2016-09-26 22:19:41 +0000618
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000619#define _LIBCPP_TYPE_VIS _LIBCPP_DLL_VIS
620#define _LIBCPP_FUNC_VIS _LIBCPP_DLL_VIS
Eric Fiselier99505072017-01-16 21:01:00 +0000621#define _LIBCPP_EXTERN_VIS _LIBCPP_DLL_VIS
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000622#define _LIBCPP_EXCEPTION_ABI _LIBCPP_DLL_VIS
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000623#define _LIBCPP_HIDDEN
Shoaib Meenai69c57412017-03-02 03:02:50 +0000624#define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
Eric Fiselierb5eb1bf2017-01-04 23:56:00 +0000625#define _LIBCPP_TEMPLATE_VIS
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000626#define _LIBCPP_ENUM_VIS
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000627
Eric Fiselier8fbccea2017-01-06 21:42:58 +0000628#if defined(_LIBCPP_COMPILER_MSVC)
Shoaib Meenai7e5a8612016-09-16 19:12:54 +0000629# define _LIBCPP_INLINE_VISIBILITY __forceinline
630# define _LIBCPP_ALWAYS_INLINE __forceinline
631# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __forceinline
632#else
633# define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__always_inline__))
634# define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__))
635# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__ ((__always_inline__))
636#endif
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000637#endif // defined(_LIBCPP_OBJECT_FORMAT_COFF)
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000638
639#ifndef _LIBCPP_HIDDEN
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000640#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000641#define _LIBCPP_HIDDEN __attribute__ ((__visibility__("hidden")))
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000642#else
643#define _LIBCPP_HIDDEN
644#endif
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000645#endif
646
Shoaib Meenai5331f492017-03-09 00:18:00 +0000647#ifndef _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
648#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
Shoaib Meenai69c57412017-03-02 03:02:50 +0000649// The inline should be removed once PR32114 is resolved
650#define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS inline _LIBCPP_HIDDEN
Shoaib Meenai5331f492017-03-09 00:18:00 +0000651#else
652#define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
653#endif
654#endif
Shoaib Meenai69c57412017-03-02 03:02:50 +0000655
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000656#ifndef _LIBCPP_FUNC_VIS
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000657#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000658#define _LIBCPP_FUNC_VIS __attribute__ ((__visibility__("default")))
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000659#else
660#define _LIBCPP_FUNC_VIS
661#endif
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000662#endif
663
664#ifndef _LIBCPP_TYPE_VIS
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000665# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
Shoaib Meenai55f3a462017-03-02 03:22:18 +0000666# define _LIBCPP_TYPE_VIS __attribute__ ((__visibility__("default")))
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000667# else
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000668# define _LIBCPP_TYPE_VIS
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000669# endif
670#endif
671
Eric Fiselierb5eb1bf2017-01-04 23:56:00 +0000672#ifndef _LIBCPP_TEMPLATE_VIS
Shoaib Meenai55f3a462017-03-02 03:22:18 +0000673# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
674# if __has_attribute(__type_visibility__)
675# define _LIBCPP_TEMPLATE_VIS __attribute__ ((__type_visibility__("default")))
676# else
677# define _LIBCPP_TEMPLATE_VIS __attribute__ ((__visibility__("default")))
678# endif
679# else
680# define _LIBCPP_TEMPLATE_VIS
681# endif
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000682#endif
683
Eric Fiselier99505072017-01-16 21:01:00 +0000684#ifndef _LIBCPP_EXTERN_VIS
685# define _LIBCPP_EXTERN_VIS
686#endif
687
Shoaib Meenai2d71db42016-11-16 22:18:10 +0000688#ifndef _LIBCPP_OVERRIDABLE_FUNC_VIS
689# define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_FUNC_VIS
690#endif
691
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000692#ifndef _LIBCPP_EXCEPTION_ABI
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000693#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000694#define _LIBCPP_EXCEPTION_ABI __attribute__ ((__visibility__("default")))
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000695#else
696#define _LIBCPP_EXCEPTION_ABI
697#endif
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000698#endif
699
700#ifndef _LIBCPP_ENUM_VIS
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000701# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__)
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000702# define _LIBCPP_ENUM_VIS __attribute__ ((__type_visibility__("default")))
703# else
704# define _LIBCPP_ENUM_VIS
705# endif
706#endif
707
708#ifndef _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000709# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__)
Shoaib Meenai69c57412017-03-02 03:02:50 +0000710# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS __attribute__ ((__visibility__("default")))
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000711# else
712# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS
713# endif
714#endif
715
Shoaib Meenai5ac10672016-09-19 18:29:07 +0000716#ifndef _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS
717# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS
718#endif
719
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000720#ifndef _LIBCPP_INLINE_VISIBILITY
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000721#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
Eric Fiselierc7fc7082016-10-13 04:07:58 +0000722#define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__visibility__("hidden"), __always_inline__))
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000723#else
724#define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__always_inline__))
725#endif
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000726#endif
727
728#ifndef _LIBCPP_ALWAYS_INLINE
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000729#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
Eric Fiselierc7fc7082016-10-13 04:07:58 +0000730#define _LIBCPP_ALWAYS_INLINE __attribute__ ((__visibility__("hidden"), __always_inline__))
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000731#else
732#define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__))
733#endif
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000734#endif
735
Eric Fiselier815ed732016-09-16 00:00:48 +0000736#ifndef _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000737# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
738# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__((__visibility__("default"), __always_inline__))
739# else
740# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__((__always_inline__))
741# endif
Eric Fiselier815ed732016-09-16 00:00:48 +0000742#endif
743
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000744#ifndef _LIBCPP_PREFERRED_OVERLOAD
745# if __has_attribute(__enable_if__)
746# define _LIBCPP_PREFERRED_OVERLOAD __attribute__ ((__enable_if__(true, "")))
747# endif
748#endif
749
Eric Fiselier1af87ca2015-12-15 22:16:47 +0000750#ifndef _LIBCPP_HAS_NO_NOEXCEPT
751# define _NOEXCEPT noexcept
752# define _NOEXCEPT_(x) noexcept(x)
753#else
754# define _NOEXCEPT throw()
755# define _NOEXCEPT_(x)
756#endif
757
Eric Fiselierfb825432016-12-28 04:58:52 +0000758#if defined(_LIBCPP_DEBUG_USE_EXCEPTIONS)
759# if !defined(_LIBCPP_DEBUG)
760# error cannot use _LIBCPP_DEBUG_USE_EXCEPTIONS unless _LIBCPP_DEBUG is defined
761# endif
762# define _NOEXCEPT_DEBUG noexcept(false)
763# define _NOEXCEPT_DEBUG_(x) noexcept(false)
764#else
765# define _NOEXCEPT_DEBUG _NOEXCEPT
766# define _NOEXCEPT_DEBUG_(x) _NOEXCEPT_(x)
767#endif
768
Howard Hinnantc51e1022010-05-11 19:42:16 +0000769#ifdef _LIBCPP_HAS_NO_UNICODE_CHARS
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000770typedef unsigned short char16_t;
771typedef unsigned int char32_t;
Howard Hinnant3b6579a2010-08-22 00:02:43 +0000772#endif // _LIBCPP_HAS_NO_UNICODE_CHARS
Howard Hinnantc51e1022010-05-11 19:42:16 +0000773
Stephan Tolksdorf0efeb6c2014-03-26 19:45:52 +0000774#ifndef __SIZEOF_INT128__
775#define _LIBCPP_HAS_NO_INT128
776#endif
777
Eric Fiselierc6f17cc2016-09-25 03:34:28 +0000778#ifdef _LIBCPP_CXX03_LANG
779# if __has_extension(c_static_assert)
780# define static_assert(__b, __m) _Static_assert(__b, __m)
781# else
Richard Smith7f0d6482015-10-13 23:12:22 +0000782extern "C++" {
Howard Hinnantc51e1022010-05-11 19:42:16 +0000783template <bool> struct __static_assert_test;
784template <> struct __static_assert_test<true> {};
785template <unsigned> struct __static_assert_check {};
Richard Smith7f0d6482015-10-13 23:12:22 +0000786}
Howard Hinnantc51e1022010-05-11 19:42:16 +0000787#define static_assert(__b, __m) \
788 typedef __static_assert_check<sizeof(__static_assert_test<(__b)>)> \
789 _LIBCPP_CONCAT(__t, __LINE__)
Eric Fiselierc6f17cc2016-09-25 03:34:28 +0000790# endif // __has_extension(c_static_assert)
791#endif // _LIBCPP_CXX03_LANG
Howard Hinnantc51e1022010-05-11 19:42:16 +0000792
793#ifdef _LIBCPP_HAS_NO_DECLTYPE
Eric Fiselier86fcc922015-07-10 20:26:38 +0000794// GCC 4.6 provides __decltype in all standard modes.
Eric Fiselier73409252017-01-23 21:41:13 +0000795#if __has_keyword(__decltype) || _LIBCPP_CLANG_VER >= 304 || _GNUC_VER >= 406
Eric Fiselier1ac54842015-06-13 06:27:17 +0000796# define decltype(__x) __decltype(__x)
797#else
798# define decltype(__x) __typeof__(__x)
799#endif
Howard Hinnantc51e1022010-05-11 19:42:16 +0000800#endif
801
Howard Hinnant62c8c0b2010-09-06 19:10:31 +0000802#ifdef _LIBCPP_HAS_NO_CONSTEXPR
Howard Hinnant664183b2012-04-02 00:40:41 +0000803#define _LIBCPP_CONSTEXPR
804#else
805#define _LIBCPP_CONSTEXPR constexpr
Howard Hinnant62c8c0b2010-09-06 19:10:31 +0000806#endif
807
Eric Fiselier07b2b552016-11-18 06:42:17 +0000808#ifdef _LIBCPP_CXX03_LANG
Howard Hinnant3d284222013-05-02 20:18:43 +0000809#define _LIBCPP_DEFAULT {}
810#else
811#define _LIBCPP_DEFAULT = default;
812#endif
813
Eric Fiselier2d8515f2017-01-06 20:58:25 +0000814#ifdef _LIBCPP_CXX03_LANG
Eric Fiselierd06276b2016-03-31 02:15:15 +0000815#define _LIBCPP_EQUAL_DELETE
816#else
817#define _LIBCPP_EQUAL_DELETE = delete
818#endif
819
Nuno Lopes22df2dc2012-06-28 16:47:34 +0000820#ifdef __GNUC__
Joerg Sonnenberger4944e0b2013-04-29 19:52:08 +0000821#define _NOALIAS __attribute__((__malloc__))
Nuno Lopes22df2dc2012-06-28 16:47:34 +0000822#else
823#define _NOALIAS
824#endif
825
Eric Fiselier70d0df32017-01-13 18:03:46 +0000826#if __has_feature(cxx_explicit_conversions) || defined(__IBMCPP__) || \
Eric Fiselier6a5f6f92016-12-30 14:05:52 +0000827 (!defined(_LIBCPP_CXX03_LANG) && defined(__GNUC__)) // All supported GCC versions
Howard Hinnant86a291f2012-02-21 21:46:43 +0000828# define _LIBCPP_EXPLICIT explicit
829#else
830# define _LIBCPP_EXPLICIT
831#endif
832
Richard Smith1f1c1472014-06-04 19:54:15 +0000833#if !__has_builtin(__builtin_operator_new) || !__has_builtin(__builtin_operator_delete)
834# define _LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE
835#endif
836
Howard Hinnant09bc0c92011-12-02 19:36:40 +0000837#ifdef _LIBCPP_HAS_NO_STRONG_ENUMS
Howard Hinnant8331b762013-03-06 23:30:19 +0000838#define _LIBCPP_DECLARE_STRONG_ENUM(x) struct _LIBCPP_TYPE_VIS x { enum __lx
Howard Hinnant09bc0c92011-12-02 19:36:40 +0000839#define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) \
Howard Hinnant49e145e2012-10-30 19:06:59 +0000840 __lx __v_; \
841 _LIBCPP_ALWAYS_INLINE x(__lx __v) : __v_(__v) {} \
842 _LIBCPP_ALWAYS_INLINE explicit x(int __v) : __v_(static_cast<__lx>(__v)) {} \
Howard Hinnant09bc0c92011-12-02 19:36:40 +0000843 _LIBCPP_ALWAYS_INLINE operator int() const {return __v_;} \
844 };
845#else // _LIBCPP_HAS_NO_STRONG_ENUMS
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000846#define _LIBCPP_DECLARE_STRONG_ENUM(x) enum class _LIBCPP_ENUM_VIS x
Howard Hinnant09bc0c92011-12-02 19:36:40 +0000847#define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x)
848#endif // _LIBCPP_HAS_NO_STRONG_ENUMS
849
Howard Hinnant6148a9b2013-08-23 20:10:18 +0000850#ifdef _LIBCPP_DEBUG
851# if _LIBCPP_DEBUG == 0
Howard Hinnant8ea98242013-08-23 17:37:05 +0000852# define _LIBCPP_DEBUG_LEVEL 1
Howard Hinnant6148a9b2013-08-23 20:10:18 +0000853# elif _LIBCPP_DEBUG == 1
Howard Hinnant8ea98242013-08-23 17:37:05 +0000854# define _LIBCPP_DEBUG_LEVEL 2
855# else
Howard Hinnant6148a9b2013-08-23 20:10:18 +0000856# error Supported values for _LIBCPP_DEBUG are 0 and 1
Howard Hinnant8ea98242013-08-23 17:37:05 +0000857# endif
Eric Fiselier59cd98b2017-02-04 23:22:28 +0000858# if !defined(_LIBCPP_BUILDING_LIBRARY)
Howard Hinnant8ea98242013-08-23 17:37:05 +0000859# define _LIBCPP_EXTERN_TEMPLATE(...)
Eric Fiselier59cd98b2017-02-04 23:22:28 +0000860# endif
Howard Hinnant8ea98242013-08-23 17:37:05 +0000861#endif
862
Shoaib Meenai2ba461c2017-04-13 20:13:32 +0000863#ifdef _LIBCPP_DISABLE_EXTERN_TEMPLATE
864#define _LIBCPP_EXTERN_TEMPLATE(...)
865#define _LIBCPP_EXTERN_TEMPLATE2(...)
866#endif
867
Howard Hinnant862ca992012-11-06 21:08:48 +0000868#ifndef _LIBCPP_EXTERN_TEMPLATE
Justin Bogner67105aa2014-08-15 17:58:56 +0000869#define _LIBCPP_EXTERN_TEMPLATE(...) extern template __VA_ARGS__;
Howard Hinnant862ca992012-11-06 21:08:48 +0000870#endif
871
Howard Hinnant8ea98242013-08-23 17:37:05 +0000872#ifndef _LIBCPP_EXTERN_TEMPLATE2
873#define _LIBCPP_EXTERN_TEMPLATE2(...) extern template __VA_ARGS__;
874#endif
875
Tim Northover0528f502014-03-30 14:59:12 +0000876#if defined(__APPLE__) && defined(__LP64__) && !defined(__x86_64__)
Tim Northovera4fb4622014-03-30 11:34:26 +0000877#define _LIBCPP_NONUNIQUE_RTTI_BIT (1ULL << 63)
878#endif
879
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000880#if defined(__APPLE__) || defined(__FreeBSD__) || defined(_LIBCPP_MSVCRT) || \
Ed Schouten13eb7dc2015-03-10 09:26:38 +0000881 defined(__sun__) || defined(__NetBSD__) || defined(__CloudABI__)
Alexis Hunt1adf2aa2011-07-15 05:40:33 +0000882#define _LIBCPP_LOCALE__L_EXTENSIONS 1
883#endif
Yaron Keren804da952013-12-20 13:19:45 +0000884
Ben Craig133f4c12016-02-10 13:47:25 +0000885#if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
886// Most unix variants have catopen. These are the specific ones that don't.
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000887#if !defined(__BIONIC__) && !defined(_NEWLIB_VERSION)
Ed Schouten118b6032015-03-11 16:39:36 +0000888#define _LIBCPP_HAS_CATOPEN 1
889#endif
Ben Craig133f4c12016-02-10 13:47:25 +0000890#endif
Ed Schouten118b6032015-03-11 16:39:36 +0000891
Marshall Clow82378c02013-03-18 19:34:07 +0000892#ifdef __FreeBSD__
David Chisnall6ae8f352011-11-13 17:15:33 +0000893#define _DECLARE_C99_LDBL_MATH 1
894#endif
Alexis Hunt1adf2aa2011-07-15 05:40:33 +0000895
Eric Fiselier44832fb2017-01-20 01:47:26 +0000896#if defined(__APPLE__)
897# if !defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && \
898 defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__)
Marshall Clow04ac8e02017-01-23 19:51:54 +0000899# define __MAC_OS_X_VERSION_MIN_REQUIRED __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__
Eric Fiselier44832fb2017-01-20 01:47:26 +0000900# endif
901# if defined(__MAC_OS_X_VERSION_MIN_REQUIRED)
902# if __MAC_OS_X_VERSION_MIN_REQUIRED < 1060
903# define _LIBCPP_HAS_NO_ALIGNED_ALLOCATION
904# endif
905# endif
906#endif // defined(__APPLE__)
907
Marshall Clow82378c02013-03-18 19:34:07 +0000908#if defined(__APPLE__) || defined(__FreeBSD__)
Howard Hinnantf312e3e2011-09-28 23:39:33 +0000909#define _LIBCPP_HAS_DEFAULTRUNELOCALE
Alexis Hunt5a4dd562011-07-09 01:09:31 +0000910#endif
911
Marshall Clow82378c02013-03-18 19:34:07 +0000912#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__sun__)
Alexis Huntc2017f12011-07-09 03:40:04 +0000913#define _LIBCPP_WCTYPE_IS_MASK
914#endif
915
Howard Hinnantdf7d11e2013-05-07 20:16:13 +0000916#ifndef _LIBCPP_STD_VER
917# if __cplusplus <= 201103L
918# define _LIBCPP_STD_VER 11
Marshall Clow348694e2014-06-06 22:31:09 +0000919# elif __cplusplus <= 201402L
920# define _LIBCPP_STD_VER 14
Marshall Clow3986c602017-07-17 03:02:27 +0000921# elif __cplusplus <= 201703L
922# define _LIBCPP_STD_VER 17
Howard Hinnantdf7d11e2013-05-07 20:16:13 +0000923# else
Marshall Clow3986c602017-07-17 03:02:27 +0000924# define _LIBCPP_STD_VER 18 // current year, or date of c++2a ratification
Howard Hinnantdf7d11e2013-05-07 20:16:13 +0000925# endif
926#endif // _LIBCPP_STD_VER
927
Marshall Clowa2cbe0d2013-09-28 18:35:31 +0000928#if _LIBCPP_STD_VER > 11
929#define _LIBCPP_DEPRECATED [[deprecated]]
930#else
931#define _LIBCPP_DEPRECATED
932#endif
933
Marshall Clow1045cee2013-07-15 14:57:19 +0000934#if _LIBCPP_STD_VER <= 11
Marshall Clowccaa0fb2013-08-27 20:18:59 +0000935#define _LIBCPP_EXPLICIT_AFTER_CXX11
Marshall Clowa2cbe0d2013-09-28 18:35:31 +0000936#define _LIBCPP_DEPRECATED_AFTER_CXX11
Marshall Clow1045cee2013-07-15 14:57:19 +0000937#else
Marshall Clowccaa0fb2013-08-27 20:18:59 +0000938#define _LIBCPP_EXPLICIT_AFTER_CXX11 explicit
Marshall Clowa2cbe0d2013-09-28 18:35:31 +0000939#define _LIBCPP_DEPRECATED_AFTER_CXX11 [[deprecated]]
Marshall Clow1045cee2013-07-15 14:57:19 +0000940#endif
941
Eric Fiselierb4c0c662014-07-17 05:16:18 +0000942#if _LIBCPP_STD_VER > 11 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR)
943#define _LIBCPP_CONSTEXPR_AFTER_CXX11 constexpr
944#else
945#define _LIBCPP_CONSTEXPR_AFTER_CXX11
946#endif
947
Eric Fiselier0b3bfbe2016-03-17 03:30:56 +0000948#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR)
949#define _LIBCPP_CONSTEXPR_AFTER_CXX14 constexpr
950#else
951#define _LIBCPP_CONSTEXPR_AFTER_CXX14
952#endif
953
Eric Fiseliere4837422016-11-17 20:08:43 +0000954// 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
957#endif
958
Dimitry Andric830fb602015-08-19 06:43:33 +0000959#ifdef _LIBCPP_HAS_NO_RVALUE_REFERENCES
960# define _LIBCPP_EXPLICIT_MOVE(x) _VSTD::move(x)
961#else
962# define _LIBCPP_EXPLICIT_MOVE(x) (x)
963#endif
964
Marshall Clow2cd9d372014-05-08 14:14:06 +0000965#ifndef _LIBCPP_HAS_NO_ASAN
Eric Fiselier6a213162016-12-23 20:03:52 +0000966_LIBCPP_FUNC_VIS extern "C" void __sanitizer_annotate_contiguous_container(
Marshall Clow2cd9d372014-05-08 14:14:06 +0000967 const void *, const void *, const void *, const void *);
968#endif
969
Howard Hinnant13087882013-10-04 21:24:21 +0000970// 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)
Marshall Clowb63146c2015-09-22 21:58:30 +0000974# if defined(__GNUC__) && ((__GNUC__ >= 5) || (__GNUC__ == 4 && \
Alexey Volkov51353fd2014-09-03 14:30:39 +0000975 (__GNUC_MINOR__ >= 3 || __GNUC_PATCHLEVEL__ >= 2))) && !defined(__GXX_RTTI)
Howard Hinnant13087882013-10-04 21:24:21 +0000976# define _LIBCPP_NO_RTTI
Eric Fiselier1e29ffc2017-05-10 21:40:58 +0000977# elif defined(_LIBCPP_COMPILER_MSVC) && !defined(_CPPRTTI)
Howard Hinnant13087882013-10-04 21:24:21 +0000978# define _LIBCPP_NO_RTTI
979# endif
980#endif
981
Howard Hinnant33f04722013-10-04 23:56:37 +0000982#ifndef _LIBCPP_WEAK
983# define _LIBCPP_WEAK __attribute__((__weak__))
984#endif
985
Asiri Rathnayakefa2e2032016-05-06 14:06:29 +0000986// Thread API
Eric Fiselierbfd45532017-01-06 23:15:16 +0000987#if !defined(_LIBCPP_HAS_NO_THREADS) && \
Asiri Rathnayakec07f0be2017-02-27 16:10:57 +0000988 !defined(_LIBCPP_HAS_THREAD_API_PTHREAD) && \
Eric Fiselierd8a6c892017-05-10 21:34:58 +0000989 !defined(_LIBCPP_HAS_THREAD_API_WIN32) && \
Asiri Rathnayakec07f0be2017-02-27 16:10:57 +0000990 !defined(_LIBCPP_HAS_THREAD_API_EXTERNAL)
Asiri Rathnayakefa2e2032016-05-06 14:06:29 +0000991# if defined(__FreeBSD__) || \
Petr Hosek34a54552016-10-10 18:53:32 +0000992 defined(__Fuchsia__) || \
Asiri Rathnayakefa2e2032016-05-06 14:06:29 +0000993 defined(__NetBSD__) || \
994 defined(__linux__) || \
995 defined(__APPLE__) || \
Eric Fiselier7ad718a2016-05-07 17:05:46 +0000996 defined(__CloudABI__) || \
Eric Fiselier08fc4c92017-05-10 02:36:48 +0000997 defined(__sun__) || \
Eric Fiselierd8a6c892017-05-10 21:34:58 +0000998 (defined(__MINGW32__) && __libcpp_has_include(<pthread.h>))
Eric Fiselierbfd45532017-01-06 23:15:16 +0000999# define _LIBCPP_HAS_THREAD_API_PTHREAD
Saleem Abdulrasoolb75a5742017-01-07 03:07:45 +00001000# elif defined(_LIBCPP_WIN32API)
1001# define _LIBCPP_HAS_THREAD_API_WIN32
Asiri Rathnayakefa2e2032016-05-06 14:06:29 +00001002# else
1003# error "No thread API"
Ben Craig5593c4f2016-05-25 17:40:09 +00001004# endif // _LIBCPP_HAS_THREAD_API
Asiri Rathnayakefa2e2032016-05-06 14:06:29 +00001005#endif // _LIBCPP_HAS_NO_THREADS
1006
Ben Craig5593c4f2016-05-25 17:40:09 +00001007#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.
1010#endif
Asiri Rathnayakefa2e2032016-05-06 14:06:29 +00001011
Asiri Rathnayake94340d22016-09-11 21:46:40 +00001012#if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_EXTERNAL)
Asiri Rathnayake66a01e22017-02-27 15:49:51 +00001013# error _LIBCPP_HAS_THREAD_API_EXTERNAL may not be defined when \
Asiri Rathnayake94340d22016-09-11 21:46:40 +00001014 _LIBCPP_HAS_NO_THREADS is defined.
1015#endif
1016
Eric Fiselier715b4162014-12-06 20:09:11 +00001017#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.
1020#endif
1021
Ed Schouten7009f4e2015-03-12 15:44:39 +00001022// 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.
1026#ifdef __CloudABI__
1027#define _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE
1028#endif
1029
Ed Schouten3a75c0b2015-03-26 14:35:46 +00001030// CloudABI is intended for running networked services. Processes do not
1031// have standard input and output channels.
1032#ifdef __CloudABI__
1033#define _LIBCPP_HAS_NO_STDIN
1034#define _LIBCPP_HAS_NO_STDOUT
1035#endif
1036
Dan Albert21800dc2016-09-19 18:00:45 +00001037#if defined(__BIONIC__) || defined(__CloudABI__) || \
Petr Hosekfdb4a872017-04-13 21:29:21 +00001038 defined(__Fuchsia__) || defined(_LIBCPP_HAS_MUSL_LIBC)
Dan Albertebdf28b2015-03-11 00:51:06 +00001039#define _LIBCPP_PROVIDES_DEFAULT_RUNE_TABLE
1040#endif
1041
Ed Schoutena810d5e2016-12-30 10:44:00 +00001042// Thread-unsafe functions such as strtok() and localtime()
Ed Schouten137c8632015-06-24 08:44:38 +00001043// are not available.
1044#ifdef __CloudABI__
1045#define _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS
1046#endif
1047
Eric Fiselierba725072017-01-14 04:27:58 +00001048#if __has_feature(cxx_atomic) || __has_extension(c_atomic) || __has_keyword(_Atomic)
Eric Fiselier8020b6c2015-08-19 17:21:46 +00001049#define _LIBCPP_HAS_C_ATOMIC_IMP
1050#elif _GNUC_VER > 407
1051#define _LIBCPP_HAS_GCC_ATOMIC_IMP
1052#endif
1053
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
1057#endif
1058
Marshall Clow91c7f642016-01-11 19:27:10 +00001059#ifndef _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK
1060#define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK
Eric Fiselier100e24b2016-02-11 11:59:44 +00001061#endif
1062
Saleem Abdulrasoolb82f9602017-02-13 15:26:51 +00001063#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
1067// of the types.
1068#if !defined(_LIBCPP_OBJECT_FORMAT_COFF)
Eric Fiselierc0c6c982016-03-16 02:30:06 +00001069#define _LIBCPP_HAS_THREAD_SAFETY_ANNOTATIONS
1070#endif
Saleem Abdulrasoolb82f9602017-02-13 15:26:51 +00001071#endif
1072#endif
Eric Fiselierc0c6c982016-03-16 02:30:06 +00001073
Eric Fiselier0d3da632016-09-03 00:11:33 +00001074#if __has_attribute(require_constant_initialization)
1075#define _LIBCPP_SAFE_STATIC __attribute__((__require_constant_initialization__))
1076#else
1077#define _LIBCPP_SAFE_STATIC
1078#endif
1079
Eric Fiselierd4ec6352016-10-12 07:46:20 +00001080#if !__has_builtin(__builtin_addressof) && _GNUC_VER < 700
Eric Fiselierc9a0e822017-04-12 23:08:46 +00001081# define _LIBCPP_HAS_NO_BUILTIN_ADDRESSOF
Eric Fiselierd4ec6352016-10-12 07:46:20 +00001082#endif
1083
Shoaib Meenai3879c9b2016-10-31 15:09:10 +00001084#if !defined(_LIBCPP_HAS_NO_OFF_T_FUNCTIONS)
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +00001085#if defined(_LIBCPP_MSVCRT) || defined(_NEWLIB_VERSION)
Shoaib Meenai3879c9b2016-10-31 15:09:10 +00001086#define _LIBCPP_HAS_NO_OFF_T_FUNCTIONS
1087#endif
1088#endif
1089
Eric Fiseliera7a14ed2017-01-13 22:02:08 +00001090#if __has_attribute(diagnose_if) && !defined(_LIBCPP_DISABLE_ADDITIONAL_DIAGNOSTICS)
1091# define _LIBCPP_DIAGNOSE_WARNING(...) \
Eric Fiselierb5ab51d2017-01-13 23:45:39 +00001092 __attribute__((diagnose_if(__VA_ARGS__, "warning")))
Eric Fiseliera7a14ed2017-01-13 22:02:08 +00001093# define _LIBCPP_DIAGNOSE_ERROR(...) \
Eric Fiselierb5ab51d2017-01-13 23:45:39 +00001094 __attribute__((diagnose_if(__VA_ARGS__, "error")))
Eric Fiseliera7a14ed2017-01-13 22:02:08 +00001095#else
1096# define _LIBCPP_DIAGNOSE_WARNING(...)
1097# define _LIBCPP_DIAGNOSE_ERROR(...)
1098#endif
1099
Eric Fiselier53313f72017-05-05 20:50:24 +00001100#if __has_attribute(fallthough) || _GNUC_VER >= 700
Eric Fiselier4db80032017-05-05 20:32:26 +00001101// Use a function like macro to imply that it must be followed by a semicolon
1102#define _LIBCPP_FALLTHROUGH() __attribute__((__fallthrough__))
1103#else
1104#define _LIBCPP_FALLTHROUGH() ((void)0)
1105#endif
1106
Eric Fiseliere3cec5f2017-01-16 21:15:08 +00001107#if defined(_LIBCPP_ABI_MICROSOFT) && \
1108 (defined(_LIBCPP_COMPILER_MSVC) || __has_declspec_attribute(empty_bases))
1109# define _LIBCPP_DECLSPEC_EMPTY_BASES __declspec(empty_bases)
1110#else
1111# define _LIBCPP_DECLSPEC_EMPTY_BASES
1112#endif
1113
Eric Fiselierddd77792017-02-17 03:25:08 +00001114#if defined(_LIBCPP_ENABLE_CXX17_REMOVED_FEATURES)
Eric Fiselier65d5b4c2017-02-17 03:30:25 +00001115# define _LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR
Eric Fiselierddd77792017-02-17 03:25:08 +00001116# define _LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS
Marshall Clowdfab6ae2017-03-23 13:44:06 +00001117# define _LIBCPP_ENABLE_CXX17_REMOVED_RANDOM_SHUFFLE
Marshall Clow26a027c2017-04-13 18:25:32 +00001118# define _LIBCPP_ENABLE_CXX17_REMOVED_BINDERS
Eric Fiselierddd77792017-02-17 03:25:08 +00001119#endif // _LIBCPP_ENABLE_CXX17_REMOVED_FEATURES
1120
Marshall Clow580b6e62017-03-24 03:40:36 +00001121#if !defined(__cpp_deduction_guides) || __cpp_deduction_guides < 201611
1122# define _LIBCPP_HAS_NO_DEDUCTION_GUIDES
1123#endif
1124
Eric Fiselierc9a0e822017-04-12 23:08:46 +00001125#if !__has_keyword(__is_aggregate) && (_GNUC_VER_NEW < 7001)
1126# define _LIBCPP_HAS_NO_IS_AGGREGATE
1127#endif
1128
Eric Fiselier40b66222017-05-26 01:52:59 +00001129#if !defined(__cpp_coroutines) || __cpp_coroutines < 201703L
1130# define _LIBCPP_HAS_NO_COROUTINES
1131#endif
1132
Mehdi Amini228053d2017-05-04 17:08:54 +00001133// Decide whether to use availability macros.
1134#if !defined(_LIBCPP_BUILDING_LIBRARY) && \
1135 !defined(_LIBCPP_DISABLE_AVAILABILITY) && \
1136 __has_feature(attribute_availability_with_strict) && \
1137 __has_feature(attribute_availability_in_templates)
1138#ifdef __APPLE__
1139#define _LIBCPP_USE_AVAILABILITY_APPLE
1140#endif
1141#endif
1142
1143// Define availability macros.
1144#if defined(_LIBCPP_USE_AVAILABILITY_APPLE)
1145#define _LIBCPP_AVAILABILITY_SHARED_MUTEX \
1146 __attribute__((availability(macosx,strict,introduced=10.12))) \
1147 __attribute__((availability(ios,strict,introduced=10.0))) \
1148 __attribute__((availability(tvos,strict,introduced=10.0))) \
1149 __attribute__((availability(watchos,strict,introduced=3.0)))
1150#define _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS __attribute__((unavailable))
1151#define _LIBCPP_AVAILABILITY_BAD_ARRAY_LENGTH __attribute__((unavailable))
Duncan P. N. Exon Smith7566f702017-06-18 14:52:26 +00001152#define _LIBCPP_AVAILABILITY_BAD_ANY_CAST __attribute__((unavailable))
Mehdi Amini228053d2017-05-04 17:08:54 +00001153#define _LIBCPP_AVAILABILITY_UNCAUGHT_EXCEPTIONS \
1154 __attribute__((availability(macosx,strict,introduced=10.12))) \
1155 __attribute__((availability(ios,strict,introduced=10.0))) \
1156 __attribute__((availability(tvos,strict,introduced=10.0))) \
1157 __attribute__((availability(watchos,strict,introduced=3.0)))
1158#define _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE \
1159 __attribute__((availability(macosx,strict,introduced=10.12))) \
1160 __attribute__((availability(ios,strict,introduced=10.0))) \
1161 __attribute__((availability(tvos,strict,introduced=10.0))) \
1162 __attribute__((availability(watchos,strict,introduced=3.0)))
1163#define _LIBCPP_AVAILABILITY_FUTURE_ERROR \
1164 __attribute__((availability(ios,strict,introduced=6.0)))
1165#define _LIBCPP_AVAILABILITY_TYPEINFO_VTABLE \
1166 __attribute__((availability(macosx,strict,introduced=10.9))) \
1167 __attribute__((availability(ios,strict,introduced=7.0)))
1168#define _LIBCPP_AVAILABILITY_LOCALE_CATEGORY \
1169 __attribute__((availability(macosx,strict,introduced=10.9))) \
1170 __attribute__((availability(ios,strict,introduced=7.0)))
1171#define _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR \
1172 __attribute__((availability(macosx,strict,introduced=10.9))) \
1173 __attribute__((availability(ios,strict,introduced=7.0)))
1174#else
1175#define _LIBCPP_AVAILABILITY_SHARED_MUTEX
1176#define _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS
1177#define _LIBCPP_AVAILABILITY_BAD_ARRAY_LENGTH
Duncan P. N. Exon Smith7566f702017-06-18 14:52:26 +00001178#define _LIBCPP_AVAILABILITY_BAD_ANY_CAST
Mehdi Amini228053d2017-05-04 17:08:54 +00001179#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
1185#endif
1186
1187// Define availability that depends on _LIBCPP_NO_EXCEPTIONS.
1188#ifdef _LIBCPP_NO_EXCEPTIONS
1189#define _LIBCPP_AVAILABILITY_DYNARRAY
1190#define _LIBCPP_AVAILABILITY_FUTURE
Duncan P. N. Exon Smith7566f702017-06-18 14:52:26 +00001191#define _LIBCPP_AVAILABILITY_THROW_BAD_ANY_CAST
Mehdi Amini228053d2017-05-04 17:08:54 +00001192#else
1193#define _LIBCPP_AVAILABILITY_DYNARRAY _LIBCPP_AVAILABILITY_BAD_ARRAY_LENGTH
1194#define _LIBCPP_AVAILABILITY_FUTURE _LIBCPP_AVAILABILITY_FUTURE_ERROR
Duncan P. N. Exon Smith7566f702017-06-18 14:52:26 +00001195#define _LIBCPP_AVAILABILITY_THROW_BAD_ANY_CAST \
1196 _LIBCPP_AVAILABILITY_BAD_ANY_CAST
Mehdi Amini228053d2017-05-04 17:08:54 +00001197#endif
1198
1199// Availability of stream API in the dylib got dropped and re-added. The
1200// extern template should effectively be available at:
1201// availability(macosx,introduced=10.9)
1202// availability(ios,introduced=7.0)
1203#if defined(_LIBCPP_USE_AVAILABILITY_APPLE) && \
1204 ((defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && \
Duncan P. N. Exon Smithb28fea72017-06-18 16:50:23 +00001205 __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 1090) || \
Mehdi Amini228053d2017-05-04 17:08:54 +00001206 (defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) && \
Duncan P. N. Exon Smithb28fea72017-06-18 16:50:23 +00001207 __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ < 70000))
Mehdi Amini228053d2017-05-04 17:08:54 +00001208#define _LIBCPP_AVAILABILITY_NO_STREAMS_EXTERN_TEMPLATE
1209#endif
1210
Eric Fiselierf4433a32017-05-31 22:07:49 +00001211#if defined(_LIBCPP_COMPILER_IBM)
1212#define _LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO
1213#endif
1214
1215#if defined(_LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO)
1216# define _LIBCPP_PUSH_MACROS
1217# define _LIBCPP_POP_MACROS
1218#else
1219 // Don't warn about macro conflicts when we can restore them at the
1220 // end of the header.
1221# ifndef _LIBCPP_DISABLE_MACRO_CONFLICT_WARNINGS
1222# define _LIBCPP_DISABLE_MACRO_CONFLICT_WARNINGS
1223# endif
1224# if defined(_LIBCPP_COMPILER_MSVC)
1225# define _LIBCPP_PUSH_MACROS \
1226 __pragma(push_macro("min")) \
1227 __pragma(push_macro("max"))
1228# define _LIBCPP_POP_MACROS \
1229 __pragma(pop_macro("min")) \
1230 __pragma(pop_macro("max"))
1231# else
1232# define _LIBCPP_PUSH_MACROS \
1233 _Pragma("push_macro(\"min\")") \
1234 _Pragma("push_macro(\"max\")")
1235# define _LIBCPP_POP_MACROS \
1236 _Pragma("pop_macro(\"min\")") \
1237 _Pragma("pop_macro(\"max\")")
1238# endif
1239#endif // defined(_LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO)
1240
Eric Fiselier911dcad2017-06-16 01:57:41 +00001241
1242#endif // __cplusplus
1243
Eric Fiselier8020b6c2015-08-19 17:21:46 +00001244#endif // _LIBCPP_CONFIG