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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
160// that Windows compilers pretending to be MSVC++ target the microsoft ABI.
161#if defined(_WIN32) && defined(_MSC_VER)
162# define _LIBCPP_ABI_MICROSOFT
163#else
164# define _LIBCPP_ABI_ITANIUM
165#endif
166
Dan Albert21800dc2016-09-19 18:00:45 +0000167// Need to detect which libc we're using if we're on Linux.
168#if defined(__linux__)
169#include <features.h>
170#if !defined(__GLIBC_PREREQ)
171#define __GLIBC_PREREQ(a, b) 0
172#endif // !defined(__GLIBC_PREREQ)
173#endif // defined(__linux__)
Eric Fiselier86fcc922015-07-10 20:26:38 +0000174
Howard Hinnantc51e1022010-05-11 19:42:16 +0000175#ifdef __LITTLE_ENDIAN__
176#if __LITTLE_ENDIAN__
177#define _LIBCPP_LITTLE_ENDIAN 1
178#define _LIBCPP_BIG_ENDIAN 0
Howard Hinnant3b6579a2010-08-22 00:02:43 +0000179#endif // __LITTLE_ENDIAN__
180#endif // __LITTLE_ENDIAN__
Howard Hinnantc51e1022010-05-11 19:42:16 +0000181
182#ifdef __BIG_ENDIAN__
183#if __BIG_ENDIAN__
184#define _LIBCPP_LITTLE_ENDIAN 0
185#define _LIBCPP_BIG_ENDIAN 1
Howard Hinnant3b6579a2010-08-22 00:02:43 +0000186#endif // __BIG_ENDIAN__
187#endif // __BIG_ENDIAN__
Howard Hinnantc51e1022010-05-11 19:42:16 +0000188
Dan Albert98d97792015-09-16 18:10:47 +0000189#ifdef __BYTE_ORDER__
190#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
191#define _LIBCPP_LITTLE_ENDIAN 1
192#define _LIBCPP_BIG_ENDIAN 0
193#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
194#define _LIBCPP_LITTLE_ENDIAN 0
195#define _LIBCPP_BIG_ENDIAN 1
196#endif // __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
197#endif // __BYTE_ORDER__
198
David Chisnall93008f02010-08-11 16:27:20 +0000199#ifdef __FreeBSD__
200# include <sys/endian.h>
201# if _BYTE_ORDER == _LITTLE_ENDIAN
202# define _LIBCPP_LITTLE_ENDIAN 1
203# define _LIBCPP_BIG_ENDIAN 0
Howard Hinnant3b6579a2010-08-22 00:02:43 +0000204# else // _BYTE_ORDER == _LITTLE_ENDIAN
David Chisnall93008f02010-08-11 16:27:20 +0000205# define _LIBCPP_LITTLE_ENDIAN 0
206# define _LIBCPP_BIG_ENDIAN 1
Howard Hinnant3b6579a2010-08-22 00:02:43 +0000207# endif // _BYTE_ORDER == _LITTLE_ENDIAN
Howard Hinnant13830352012-11-26 21:18:17 +0000208# ifndef __LONG_LONG_SUPPORTED
209# define _LIBCPP_HAS_NO_LONG_LONG
210# endif // __LONG_LONG_SUPPORTED
Howard Hinnant3b6579a2010-08-22 00:02:43 +0000211#endif // __FreeBSD__
David Chisnall93008f02010-08-11 16:27:20 +0000212
Joerg Sonnenberger153e4162013-05-17 21:17:34 +0000213#ifdef __NetBSD__
214# include <sys/endian.h>
215# if _BYTE_ORDER == _LITTLE_ENDIAN
216# define _LIBCPP_LITTLE_ENDIAN 1
217# define _LIBCPP_BIG_ENDIAN 0
218# else // _BYTE_ORDER == _LITTLE_ENDIAN
219# define _LIBCPP_LITTLE_ENDIAN 0
220# define _LIBCPP_BIG_ENDIAN 1
221# endif // _BYTE_ORDER == _LITTLE_ENDIAN
222# define _LIBCPP_HAS_QUICK_EXIT
223#endif // __NetBSD__
224
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000225#if defined(_WIN32)
Eric Fiselierbb999f92017-05-31 22:14:05 +0000226# define _LIBCPP_WIN32API
Howard Hinnant34bad2a2011-05-13 17:16:06 +0000227# define _LIBCPP_LITTLE_ENDIAN 1
228# define _LIBCPP_BIG_ENDIAN 0
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000229# define _LIBCPP_SHORT_WCHAR 1
Eric Fiselierbb999f92017-05-31 22:14:05 +0000230// Both MinGW and native MSVC provide a "MSVC"-like enviroment
231# define _LIBCPP_MSVCRT_LIKE
Bruno Cardoso Lopes91572682017-07-17 21:52:31 +0000232// If mingw not explicitly detected, assume using MS C runtime only if
233// a MS compatibility version is specified.
234# if defined(_MSC_VER) && !defined(__MINGW32__)
Howard Hinnant8ad70912013-09-17 01:34:47 +0000235# define _LIBCPP_MSVCRT // Using Microsoft's C Runtime library
236# endif
Saleem Abdulrasool32300ca2017-01-04 01:53:24 +0000237# if (defined(_M_AMD64) || defined(__x86_64__)) || (defined(_M_ARM) || defined(__arm__))
238# define _LIBCPP_HAS_BITSCAN64
239# endif
Eric Fiselier600a98e2017-01-19 23:48:05 +0000240# if defined(_LIBCPP_MSVCRT)
241# define _LIBCPP_HAS_QUICK_EXIT
242# endif
Shoaib Meenaie2ce3602017-04-06 04:47:49 +0000243
244// Some CRT APIs are unavailable to store apps
245#if defined(WINAPI_FAMILY)
246#include <winapifamily.h>
247#if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) && \
248 (!defined(WINAPI_PARTITION_SYSTEM) || \
249 !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_SYSTEM))
250#define _LIBCPP_WINDOWS_STORE_APP
251#endif
252#endif
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000253#endif // defined(_WIN32)
Howard Hinnant34bad2a2011-05-13 17:16:06 +0000254
David Chisnall8074c342012-02-29 13:05:08 +0000255#ifdef __sun__
256# include <sys/isa_defs.h>
257# ifdef _LITTLE_ENDIAN
258# define _LIBCPP_LITTLE_ENDIAN 1
259# define _LIBCPP_BIG_ENDIAN 0
260# else
261# define _LIBCPP_LITTLE_ENDIAN 0
262# define _LIBCPP_BIG_ENDIAN 1
263# endif
264#endif // __sun__
265
Ed Schoutendcf37402015-03-10 07:46:06 +0000266#if defined(__CloudABI__)
267 // Certain architectures provide arc4random(). Prefer using
268 // arc4random() over /dev/{u,}random to make it possible to obtain
269 // random data even when using sandboxing mechanisms such as chroots,
270 // Capsicum, etc.
271# define _LIBCPP_USING_ARC4_RANDOM
272#elif defined(__native_client__)
JF Bastiend4832032014-12-01 19:19:55 +0000273 // NaCl's sandbox (which PNaCl also runs in) doesn't allow filesystem access,
274 // including accesses to the special files under /dev. C++11's
275 // std::random_device is instead exposed through a NaCl syscall.
276# define _LIBCPP_USING_NACL_RANDOM
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000277#elif defined(_LIBCPP_WIN32API)
Ed Schoutendcf37402015-03-10 07:46:06 +0000278# define _LIBCPP_USING_WIN32_RANDOM
279#else
280# define _LIBCPP_USING_DEV_RANDOM
281#endif
JF Bastiend4832032014-12-01 19:19:55 +0000282
Howard Hinnantc51e1022010-05-11 19:42:16 +0000283#if !defined(_LIBCPP_LITTLE_ENDIAN) || !defined(_LIBCPP_BIG_ENDIAN)
Howard Hinnant155c2af2010-05-24 17:49:41 +0000284# include <endian.h>
285# if __BYTE_ORDER == __LITTLE_ENDIAN
286# define _LIBCPP_LITTLE_ENDIAN 1
287# define _LIBCPP_BIG_ENDIAN 0
288# elif __BYTE_ORDER == __BIG_ENDIAN
289# define _LIBCPP_LITTLE_ENDIAN 0
290# define _LIBCPP_BIG_ENDIAN 1
Howard Hinnant3b6579a2010-08-22 00:02:43 +0000291# else // __BYTE_ORDER == __BIG_ENDIAN
Howard Hinnant155c2af2010-05-24 17:49:41 +0000292# error unable to determine endian
293# endif
Howard Hinnant3b6579a2010-08-22 00:02:43 +0000294#endif // !defined(_LIBCPP_LITTLE_ENDIAN) || !defined(_LIBCPP_BIG_ENDIAN)
Howard Hinnantc51e1022010-05-11 19:42:16 +0000295
Eric Fiselier02cba002017-06-15 03:50:02 +0000296#if __has_attribute(__no_sanitize__) && !defined(_LIBCPP_COMPILER_GCC)
Evgeniy Stepanov076b2372016-02-10 21:53:28 +0000297#define _LIBCPP_NO_CFI __attribute__((__no_sanitize__("cfi")))
298#else
299#define _LIBCPP_NO_CFI
300#endif
301
Eric Fiselier8fbccea2017-01-06 21:42:58 +0000302#if defined(_LIBCPP_COMPILER_CLANG)
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000303
Evgeniy Stepanovda2ff7e2015-10-13 23:48:28 +0000304// _LIBCPP_ALTERNATE_STRING_LAYOUT is an old name for
305// _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT left here for backward compatibility.
306#if (defined(__APPLE__) && !defined(__i386__) && !defined(__x86_64__) && \
Mehdi Aminia807b112017-04-06 01:10:22 +0000307 (!defined(__arm__) || __ARM_ARCH_7K__ >= 2)) || \
Evgeniy Stepanovda2ff7e2015-10-13 23:48:28 +0000308 defined(_LIBCPP_ALTERNATE_STRING_LAYOUT)
309#define _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT
Tim Northoverffc95932014-03-30 11:34:22 +0000310#endif
311
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000312#if __has_feature(cxx_alignas)
Howard Hinnant62cad692012-05-31 19:31:14 +0000313# define _ALIGNAS_TYPE(x) alignas(x)
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000314# define _ALIGNAS(x) alignas(x)
315#else
Howard Hinnant076b28c2012-05-31 20:14:00 +0000316# define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x))))
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000317# define _ALIGNAS(x) __attribute__((__aligned__(x)))
318#endif
319
Marshall Clow2b12c312014-02-22 15:13:48 +0000320#if __cplusplus < 201103L
Howard Hinnant31cd14f2010-09-16 23:27:26 +0000321typedef __char16_t char16_t;
322typedef __char32_t char32_t;
Howard Hinnant8e6a3982010-09-07 20:31:18 +0000323#endif
Howard Hinnant74279a52010-09-04 23:28:19 +0000324
Weiming Zhao9fe43d52016-04-21 05:28:18 +0000325#if !(__has_feature(cxx_exceptions)) && !defined(_LIBCPP_NO_EXCEPTIONS)
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000326#define _LIBCPP_NO_EXCEPTIONS
327#endif
328
Eric Fiseliered2099d2017-05-04 01:06:54 +0000329#if !(__has_feature(cxx_rtti)) && !defined(_LIBCPP_NO_RTTI)
Howard Hinnant72f73582010-08-11 17:04:31 +0000330#define _LIBCPP_NO_RTTI
331#endif
332
Howard Hinnant09bc0c92011-12-02 19:36:40 +0000333#if !(__has_feature(cxx_strong_enums))
334#define _LIBCPP_HAS_NO_STRONG_ENUMS
335#endif
336
Howard Hinnant74279a52010-09-04 23:28:19 +0000337#if !(__has_feature(cxx_decltype))
338#define _LIBCPP_HAS_NO_DECLTYPE
339#endif
340
Howard Hinnant8df96292011-05-26 17:07:32 +0000341#if __has_feature(cxx_attributes)
Richard Smithcabd3922012-07-26 02:04:22 +0000342# define _LIBCPP_NORETURN [[noreturn]]
Howard Hinnant8df96292011-05-26 17:07:32 +0000343#else
Richard Smithcabd3922012-07-26 02:04:22 +0000344# define _LIBCPP_NORETURN __attribute__ ((noreturn))
Howard Hinnant74279a52010-09-04 23:28:19 +0000345#endif
346
Howard Hinnant74279a52010-09-04 23:28:19 +0000347#if !(__has_feature(cxx_lambdas))
348#define _LIBCPP_HAS_NO_LAMBDAS
349#endif
350
351#if !(__has_feature(cxx_nullptr))
Eric Fiselierba725072017-01-14 04:27:58 +0000352# if (__has_extension(cxx_nullptr) || __has_keyword(__nullptr)) && defined(_LIBCPP_ABI_ALWAYS_USE_CXX11_NULLPTR)
Eric Fiselier83e3ee02016-12-28 09:50:23 +0000353# define nullptr __nullptr
354# else
355# define _LIBCPP_HAS_NO_NULLPTR
356# endif
Howard Hinnant74279a52010-09-04 23:28:19 +0000357#endif
358
359#if !(__has_feature(cxx_rvalue_references))
360#define _LIBCPP_HAS_NO_RVALUE_REFERENCES
361#endif
362
Howard Hinnant74279a52010-09-04 23:28:19 +0000363#if !(__has_feature(cxx_auto_type))
364#define _LIBCPP_HAS_NO_AUTO_TYPE
Howard Hinnant986832c2011-07-29 21:35:53 +0000365#endif
366
Howard Hinnant74279a52010-09-04 23:28:19 +0000367#if !(__has_feature(cxx_variadic_templates))
368#define _LIBCPP_HAS_NO_VARIADICS
369#endif
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000370
Howard Hinnant33711792011-08-12 21:56:02 +0000371#if !(__has_feature(cxx_generalized_initializers))
372#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
373#endif
374
Howard Hinnantdd0d7022011-09-22 19:10:18 +0000375#if __has_feature(is_base_of)
Howard Hinnant13d8bc12013-08-01 18:17:34 +0000376# define _LIBCPP_HAS_IS_BASE_OF
Howard Hinnantdd0d7022011-09-22 19:10:18 +0000377#endif
378
Eric Fiselierf7394302015-06-13 07:08:02 +0000379#if __has_feature(is_final)
380# define _LIBCPP_HAS_IS_FINAL
381#endif
382
Douglas Gregor13034442011-06-22 22:17:44 +0000383// Objective-C++ features (opt-in)
384#if __has_feature(objc_arc)
385#define _LIBCPP_HAS_OBJC_ARC
386#endif
387
388#if __has_feature(objc_arc_weak)
389#define _LIBCPP_HAS_OBJC_ARC_WEAK
390#endif
391
Howard Hinnant62c8c0b2010-09-06 19:10:31 +0000392#if !(__has_feature(cxx_constexpr))
393#define _LIBCPP_HAS_NO_CONSTEXPR
394#endif
395
Eric Fiselierb4c0c662014-07-17 05:16:18 +0000396#if !(__has_feature(cxx_relaxed_constexpr))
397#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR
398#endif
399
Marshall Clowfaae6982015-03-17 15:30:22 +0000400#if !(__has_feature(cxx_variable_templates))
401#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES
402#endif
403
David Blaikie97ab0022013-05-13 21:53:44 +0000404#if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L
405#if defined(__FreeBSD__)
David Chisnall277ad052012-03-14 14:10:37 +0000406#define _LIBCPP_HAS_QUICK_EXIT
Howard Hinnantcabc5a22012-10-13 18:03:53 +0000407#define _LIBCPP_HAS_C11_FEATURES
Petr Hosek34a54552016-10-10 18:53:32 +0000408#elif defined(__Fuchsia__)
409#define _LIBCPP_HAS_QUICK_EXIT
410#define _LIBCPP_HAS_C11_FEATURES
David Blaikie97ab0022013-05-13 21:53:44 +0000411#elif defined(__linux__)
Vasileios Kalintiris281b4cf2015-11-09 10:21:04 +0000412#if !defined(_LIBCPP_HAS_MUSL_LIBC)
Dan Albert21800dc2016-09-19 18:00:45 +0000413#if __GLIBC_PREREQ(2, 15) || defined(__BIONIC__)
David Blaikie97ab0022013-05-13 21:53:44 +0000414#define _LIBCPP_HAS_QUICK_EXIT
415#endif
416#if __GLIBC_PREREQ(2, 17)
417#define _LIBCPP_HAS_C11_FEATURES
418#endif
Vasileios Kalintiris281b4cf2015-11-09 10:21:04 +0000419#else // defined(_LIBCPP_HAS_MUSL_LIBC)
420#define _LIBCPP_HAS_QUICK_EXIT
421#define _LIBCPP_HAS_C11_FEATURES
David Blaikie97ab0022013-05-13 21:53:44 +0000422#endif
Vasileios Kalintiris281b4cf2015-11-09 10:21:04 +0000423#endif // __linux__
David Chisnall277ad052012-03-14 14:10:37 +0000424#endif
425
Eric Fiselier1af87ca2015-12-15 22:16:47 +0000426#if !(__has_feature(cxx_noexcept))
427#define _LIBCPP_HAS_NO_NOEXCEPT
Howard Hinnant68d13392011-05-11 20:19:40 +0000428#endif
429
Alexis Hunt43b6e8e2011-07-18 18:37:21 +0000430#if __has_feature(underlying_type)
Marshall Clow20723522014-06-26 01:07:56 +0000431# define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T)
432#endif
433
434#if __has_feature(is_literal)
435# define _LIBCPP_IS_LITERAL(T) __is_literal(T)
Alexis Hunt43b6e8e2011-07-18 18:37:21 +0000436#endif
437
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000438// Inline namespaces are available in Clang regardless of C++ dialect.
439#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE {
440#define _LIBCPP_END_NAMESPACE_STD } }
441#define _VSTD std::_LIBCPP_NAMESPACE
442
443namespace std {
444 inline namespace _LIBCPP_NAMESPACE {
445 }
446}
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000447
Marshall Clow90fc0472014-04-14 15:44:57 +0000448#if !defined(_LIBCPP_HAS_NO_ASAN) && !__has_feature(address_sanitizer)
449#define _LIBCPP_HAS_NO_ASAN
450#endif
451
Marshall Clow55b23d22016-01-12 00:38:04 +0000452// Allow for build-time disabling of unsigned integer sanitization
Jonathan Roelofs25463502016-01-13 23:27:08 +0000453#if !defined(_LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK) && __has_attribute(no_sanitize)
Saleem Abdulrasool38acb642016-02-09 04:05:37 +0000454#define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK __attribute__((__no_sanitize__("unsigned-integer-overflow")))
Marshall Clow55b23d22016-01-12 00:38:04 +0000455#endif
456
Eric Fiselier8fbccea2017-01-06 21:42:58 +0000457#elif defined(_LIBCPP_COMPILER_GCC)
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000458
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000459#define _ALIGNAS(x) __attribute__((__aligned__(x)))
Howard Hinnant67f75172012-08-19 17:14:47 +0000460#define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x))))
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000461
Richard Smithcabd3922012-07-26 02:04:22 +0000462#define _LIBCPP_NORETURN __attribute__((noreturn))
Howard Hinnant1e570a32011-05-31 13:13:49 +0000463
Marshall Clow20723522014-06-26 01:07:56 +0000464#if _GNUC_VER >= 407
465#define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T)
466#define _LIBCPP_IS_LITERAL(T) __is_literal_type(T)
Eric Fiselierf7394302015-06-13 07:08:02 +0000467#define _LIBCPP_HAS_IS_FINAL
468#endif
469
470#if defined(__GNUC__) && _GNUC_VER >= 403
471# define _LIBCPP_HAS_IS_BASE_OF
Marshall Clow20723522014-06-26 01:07:56 +0000472#endif
473
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000474#if !__EXCEPTIONS
475#define _LIBCPP_NO_EXCEPTIONS
476#endif
477
Nico Weberd04e4752014-06-04 15:46:56 +0000478// constexpr was added to GCC in 4.6.
479#if _GNUC_VER < 406
Howard Hinnant62c8c0b2010-09-06 19:10:31 +0000480#define _LIBCPP_HAS_NO_CONSTEXPR
Nico Weberd04e4752014-06-04 15:46:56 +0000481// Can only use constexpr in c++11 mode.
482#elif !defined(__GXX_EXPERIMENTAL_CXX0X__) && __cplusplus < 201103L
483#define _LIBCPP_HAS_NO_CONSTEXPR
484#endif
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000485
Marshall Clowe2be6332015-10-20 07:37:11 +0000486// Determine if GCC supports relaxed constexpr
487#if !defined(__cpp_constexpr) || __cpp_constexpr < 201304L
Eric Fiselierb4c0c662014-07-17 05:16:18 +0000488#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR
Marshall Clowe2be6332015-10-20 07:37:11 +0000489#endif
490
Marshall Clowfaae6982015-03-17 15:30:22 +0000491// GCC 5 will support variable templates
Eric Fiselier88f07122015-12-15 00:32:21 +0000492#if !defined(__cpp_variable_templates) || __cpp_variable_templates < 201304L
Marshall Clowfaae6982015-03-17 15:30:22 +0000493#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES
Eric Fiselier88f07122015-12-15 00:32:21 +0000494#endif
Eric Fiselierb4c0c662014-07-17 05:16:18 +0000495
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000496#ifndef __GXX_EXPERIMENTAL_CXX0X__
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000497#define _LIBCPP_HAS_NO_DECLTYPE
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000498#define _LIBCPP_HAS_NO_NULLPTR
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000499#define _LIBCPP_HAS_NO_UNICODE_CHARS
500#define _LIBCPP_HAS_NO_VARIADICS
Howard Hinnant74279a52010-09-04 23:28:19 +0000501#define _LIBCPP_HAS_NO_RVALUE_REFERENCES
Logan Chien5eb2ac42013-12-14 06:44:09 +0000502#define _LIBCPP_HAS_NO_STRONG_ENUMS
Eric Fiselier1af87ca2015-12-15 22:16:47 +0000503#define _LIBCPP_HAS_NO_NOEXCEPT
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000504
Howard Hinnant3b6579a2010-08-22 00:02:43 +0000505#else // __GXX_EXPERIMENTAL_CXX0X__
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000506
Howard Hinnantcafe7172012-10-03 20:48:05 +0000507#if _GNUC_VER < 403
Howard Hinnant74279a52010-09-04 23:28:19 +0000508#define _LIBCPP_HAS_NO_RVALUE_REFERENCES
Howard Hinnantc51e1022010-05-11 19:42:16 +0000509#endif
510
Eric Fiselierf825e1b2015-12-23 08:20:26 +0000511
Howard Hinnantcafe7172012-10-03 20:48:05 +0000512#if _GNUC_VER < 404
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000513#define _LIBCPP_HAS_NO_DECLTYPE
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000514#define _LIBCPP_HAS_NO_UNICODE_CHARS
515#define _LIBCPP_HAS_NO_VARIADICS
Howard Hinnant33711792011-08-12 21:56:02 +0000516#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
Howard Hinnantcafe7172012-10-03 20:48:05 +0000517#endif // _GNUC_VER < 404
Howard Hinnantc51e1022010-05-11 19:42:16 +0000518
Howard Hinnantcafe7172012-10-03 20:48:05 +0000519#if _GNUC_VER < 406
Eric Fiselier1af87ca2015-12-15 22:16:47 +0000520#define _LIBCPP_HAS_NO_NOEXCEPT
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000521#define _LIBCPP_HAS_NO_NULLPTR
Howard Hinnantc51e1022010-05-11 19:42:16 +0000522#endif
523
Howard Hinnant3b6579a2010-08-22 00:02:43 +0000524#endif // __GXX_EXPERIMENTAL_CXX0X__
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000525
Eric Fiselierd9498b32017-02-17 07:31:38 +0000526#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { inline namespace _LIBCPP_NAMESPACE {
Howard Hinnantc51e1022010-05-11 19:42:16 +0000527#define _LIBCPP_END_NAMESPACE_STD } }
Howard Hinnantb1ad5a82011-06-30 21:18:19 +0000528#define _VSTD std::_LIBCPP_NAMESPACE
Howard Hinnantc51e1022010-05-11 19:42:16 +0000529
530namespace std {
Eric Fiselierd9498b32017-02-17 07:31:38 +0000531 inline namespace _LIBCPP_NAMESPACE {
532 }
Howard Hinnantc51e1022010-05-11 19:42:16 +0000533}
534
Marshall Clow90fc0472014-04-14 15:44:57 +0000535#if !defined(_LIBCPP_HAS_NO_ASAN) && !defined(__SANITIZE_ADDRESS__)
536#define _LIBCPP_HAS_NO_ASAN
537#endif
538
Eric Fiselier8fbccea2017-01-06 21:42:58 +0000539#elif defined(_LIBCPP_COMPILER_MSVC)
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000540
Eric Fiselier8fbccea2017-01-06 21:42:58 +0000541#define _LIBCPP_TOSTRING2(x) #x
542#define _LIBCPP_TOSTRING(x) _LIBCPP_TOSTRING2(x)
543#define _LIBCPP_WARNING(x) __pragma(message(__FILE__ "(" _LIBCPP_TOSTRING(__LINE__) ") : warning note: " x))
544
545#if _MSC_VER < 1900
546#error "MSVC versions prior to Visual Studio 2015 are not supported"
547#endif
548
549#define _LIBCPP_HAS_IS_BASE_OF
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000550#define _LIBCPP_HAS_NO_CONSTEXPR
Eric Fiselierb4c0c662014-07-17 05:16:18 +0000551#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR
Marshall Clowfaae6982015-03-17 15:30:22 +0000552#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES
Saleem Abdulrasool37d0c4f2017-01-04 05:49:59 +0000553#if _MSC_VER <= 1800
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000554#define _LIBCPP_HAS_NO_UNICODE_CHARS
Saleem Abdulrasool37d0c4f2017-01-04 05:49:59 +0000555#endif
Eric Fiselier1af87ca2015-12-15 22:16:47 +0000556#define _LIBCPP_HAS_NO_NOEXCEPT
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000557#define __alignof__ __alignof
Richard Smithcabd3922012-07-26 02:04:22 +0000558#define _LIBCPP_NORETURN __declspec(noreturn)
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000559#define _ALIGNAS(x) __declspec(align(x))
560#define _LIBCPP_HAS_NO_VARIADICS
561
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000562#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {
563#define _LIBCPP_END_NAMESPACE_STD }
564#define _VSTD std
565
Howard Hinnant33f04722013-10-04 23:56:37 +0000566# define _LIBCPP_WEAK
Howard Hinnantaaaa52b2011-10-17 20:05:10 +0000567namespace std {
568}
569
Marshall Clow90fc0472014-04-14 15:44:57 +0000570#define _LIBCPP_HAS_NO_ASAN
571
Eric Fiselier8fbccea2017-01-06 21:42:58 +0000572#elif defined(_LIBCPP_COMPILER_IBM)
Howard Hinnantea382952013-08-14 18:00:20 +0000573
574#define _ALIGNAS(x) __attribute__((__aligned__(x)))
575#define _ALIGNAS_TYPE(x) __attribute__((__aligned__(__alignof(x))))
576#define _ATTRIBUTE(x) __attribute__((x))
577#define _LIBCPP_NORETURN __attribute__((noreturn))
578
Howard Hinnantea382952013-08-14 18:00:20 +0000579#define _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
Eric Fiselier1af87ca2015-12-15 22:16:47 +0000580#define _LIBCPP_HAS_NO_NOEXCEPT
Howard Hinnantea382952013-08-14 18:00:20 +0000581#define _LIBCPP_HAS_NO_NULLPTR
582#define _LIBCPP_HAS_NO_UNICODE_CHARS
Howard Hinnantea382952013-08-14 18:00:20 +0000583#define _LIBCPP_HAS_IS_BASE_OF
Eric Fiselierf7394302015-06-13 07:08:02 +0000584#define _LIBCPP_HAS_IS_FINAL
Marshall Clowfaae6982015-03-17 15:30:22 +0000585#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES
Howard Hinnantea382952013-08-14 18:00:20 +0000586
587#if defined(_AIX)
588#define __MULTILOCALE_API
589#endif
590
591#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {inline namespace _LIBCPP_NAMESPACE {
592#define _LIBCPP_END_NAMESPACE_STD } }
593#define _VSTD std::_LIBCPP_NAMESPACE
594
595namespace std {
596 inline namespace _LIBCPP_NAMESPACE {
597 }
598}
599
Marshall Clow90fc0472014-04-14 15:44:57 +0000600#define _LIBCPP_HAS_NO_ASAN
601
Eric Fiselier8fbccea2017-01-06 21:42:58 +0000602#endif // _LIBCPP_COMPILER_[CLANG|GCC|MSVC|IBM]
Howard Hinnantc51e1022010-05-11 19:42:16 +0000603
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000604#if defined(_LIBCPP_OBJECT_FORMAT_COFF)
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000605#if defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000606# define _LIBCPP_DLL_VIS
Shoaib Meenai5ac10672016-09-19 18:29:07 +0000607# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS
608# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS
Shoaib Meenai2d71db42016-11-16 22:18:10 +0000609# define _LIBCPP_OVERRIDABLE_FUNC_VIS
Eric Fiselier51e8d2f2016-09-26 22:19:41 +0000610#elif defined(_LIBCPP_BUILDING_LIBRARY)
611# define _LIBCPP_DLL_VIS __declspec(dllexport)
612# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS
613# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS _LIBCPP_DLL_VIS
Shoaib Meenai2d71db42016-11-16 22:18:10 +0000614# define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_DLL_VIS
Eric Fiselier51e8d2f2016-09-26 22:19:41 +0000615#else
616# define _LIBCPP_DLL_VIS __declspec(dllimport)
617# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS _LIBCPP_DLL_VIS
618# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS
Shoaib Meenai2d71db42016-11-16 22:18:10 +0000619# define _LIBCPP_OVERRIDABLE_FUNC_VIS
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000620#endif
Eric Fiselier51e8d2f2016-09-26 22:19:41 +0000621
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000622#define _LIBCPP_TYPE_VIS _LIBCPP_DLL_VIS
623#define _LIBCPP_FUNC_VIS _LIBCPP_DLL_VIS
Eric Fiselier99505072017-01-16 21:01:00 +0000624#define _LIBCPP_EXTERN_VIS _LIBCPP_DLL_VIS
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000625#define _LIBCPP_EXCEPTION_ABI _LIBCPP_DLL_VIS
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000626#define _LIBCPP_HIDDEN
Shoaib Meenai69c57412017-03-02 03:02:50 +0000627#define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
Eric Fiselierb5eb1bf2017-01-04 23:56:00 +0000628#define _LIBCPP_TEMPLATE_VIS
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000629#define _LIBCPP_ENUM_VIS
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000630
Eric Fiselier8fbccea2017-01-06 21:42:58 +0000631#if defined(_LIBCPP_COMPILER_MSVC)
Shoaib Meenai7e5a8612016-09-16 19:12:54 +0000632# define _LIBCPP_INLINE_VISIBILITY __forceinline
633# define _LIBCPP_ALWAYS_INLINE __forceinline
634# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __forceinline
635#else
636# define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__always_inline__))
637# define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__))
638# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__ ((__always_inline__))
639#endif
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000640#endif // defined(_LIBCPP_OBJECT_FORMAT_COFF)
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000641
642#ifndef _LIBCPP_HIDDEN
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000643#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000644#define _LIBCPP_HIDDEN __attribute__ ((__visibility__("hidden")))
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000645#else
646#define _LIBCPP_HIDDEN
647#endif
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000648#endif
649
Shoaib Meenai5331f492017-03-09 00:18:00 +0000650#ifndef _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
651#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
Shoaib Meenai69c57412017-03-02 03:02:50 +0000652// The inline should be removed once PR32114 is resolved
653#define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS inline _LIBCPP_HIDDEN
Shoaib Meenai5331f492017-03-09 00:18:00 +0000654#else
655#define _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
656#endif
657#endif
Shoaib Meenai69c57412017-03-02 03:02:50 +0000658
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000659#ifndef _LIBCPP_FUNC_VIS
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000660#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000661#define _LIBCPP_FUNC_VIS __attribute__ ((__visibility__("default")))
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000662#else
663#define _LIBCPP_FUNC_VIS
664#endif
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000665#endif
666
667#ifndef _LIBCPP_TYPE_VIS
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000668# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
Shoaib Meenai55f3a462017-03-02 03:22:18 +0000669# define _LIBCPP_TYPE_VIS __attribute__ ((__visibility__("default")))
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000670# else
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000671# define _LIBCPP_TYPE_VIS
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000672# endif
673#endif
674
Eric Fiselierb5eb1bf2017-01-04 23:56:00 +0000675#ifndef _LIBCPP_TEMPLATE_VIS
Shoaib Meenai55f3a462017-03-02 03:22:18 +0000676# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
677# if __has_attribute(__type_visibility__)
678# define _LIBCPP_TEMPLATE_VIS __attribute__ ((__type_visibility__("default")))
679# else
680# define _LIBCPP_TEMPLATE_VIS __attribute__ ((__visibility__("default")))
681# endif
682# else
683# define _LIBCPP_TEMPLATE_VIS
684# endif
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000685#endif
686
Eric Fiselier99505072017-01-16 21:01:00 +0000687#ifndef _LIBCPP_EXTERN_VIS
688# define _LIBCPP_EXTERN_VIS
689#endif
690
Shoaib Meenai2d71db42016-11-16 22:18:10 +0000691#ifndef _LIBCPP_OVERRIDABLE_FUNC_VIS
692# define _LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_FUNC_VIS
693#endif
694
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000695#ifndef _LIBCPP_EXCEPTION_ABI
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000696#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000697#define _LIBCPP_EXCEPTION_ABI __attribute__ ((__visibility__("default")))
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000698#else
699#define _LIBCPP_EXCEPTION_ABI
700#endif
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000701#endif
702
703#ifndef _LIBCPP_ENUM_VIS
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000704# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__)
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000705# define _LIBCPP_ENUM_VIS __attribute__ ((__type_visibility__("default")))
706# else
707# define _LIBCPP_ENUM_VIS
708# endif
709#endif
710
711#ifndef _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000712# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) && __has_attribute(__type_visibility__)
Shoaib Meenai69c57412017-03-02 03:02:50 +0000713# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS __attribute__ ((__visibility__("default")))
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000714# else
715# define _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS
716# endif
717#endif
718
Shoaib Meenai5ac10672016-09-19 18:29:07 +0000719#ifndef _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS
720# define _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS
721#endif
722
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000723#ifndef _LIBCPP_INLINE_VISIBILITY
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000724#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
Eric Fiselierc7fc7082016-10-13 04:07:58 +0000725#define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__visibility__("hidden"), __always_inline__))
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000726#else
727#define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__always_inline__))
728#endif
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000729#endif
730
731#ifndef _LIBCPP_ALWAYS_INLINE
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000732#if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
Eric Fiselierc7fc7082016-10-13 04:07:58 +0000733#define _LIBCPP_ALWAYS_INLINE __attribute__ ((__visibility__("hidden"), __always_inline__))
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000734#else
735#define _LIBCPP_ALWAYS_INLINE __attribute__ ((__always_inline__))
736#endif
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000737#endif
738
Eric Fiselier815ed732016-09-16 00:00:48 +0000739#ifndef _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY
Shoaib Meenaif36e9882016-12-05 19:40:12 +0000740# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
741# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__((__visibility__("default"), __always_inline__))
742# else
743# define _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY __attribute__((__always_inline__))
744# endif
Eric Fiselier815ed732016-09-16 00:00:48 +0000745#endif
746
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000747#ifndef _LIBCPP_PREFERRED_OVERLOAD
748# if __has_attribute(__enable_if__)
749# define _LIBCPP_PREFERRED_OVERLOAD __attribute__ ((__enable_if__(true, "")))
750# endif
751#endif
752
Eric Fiselier1af87ca2015-12-15 22:16:47 +0000753#ifndef _LIBCPP_HAS_NO_NOEXCEPT
754# define _NOEXCEPT noexcept
755# define _NOEXCEPT_(x) noexcept(x)
756#else
757# define _NOEXCEPT throw()
758# define _NOEXCEPT_(x)
759#endif
760
Eric Fiselierfb825432016-12-28 04:58:52 +0000761#if defined(_LIBCPP_DEBUG_USE_EXCEPTIONS)
762# if !defined(_LIBCPP_DEBUG)
763# error cannot use _LIBCPP_DEBUG_USE_EXCEPTIONS unless _LIBCPP_DEBUG is defined
764# endif
765# define _NOEXCEPT_DEBUG noexcept(false)
766# define _NOEXCEPT_DEBUG_(x) noexcept(false)
767#else
768# define _NOEXCEPT_DEBUG _NOEXCEPT
769# define _NOEXCEPT_DEBUG_(x) _NOEXCEPT_(x)
770#endif
771
Howard Hinnantc51e1022010-05-11 19:42:16 +0000772#ifdef _LIBCPP_HAS_NO_UNICODE_CHARS
Howard Hinnantaa87c0f2010-08-10 20:48:29 +0000773typedef unsigned short char16_t;
774typedef unsigned int char32_t;
Howard Hinnant3b6579a2010-08-22 00:02:43 +0000775#endif // _LIBCPP_HAS_NO_UNICODE_CHARS
Howard Hinnantc51e1022010-05-11 19:42:16 +0000776
Stephan Tolksdorf0efeb6c2014-03-26 19:45:52 +0000777#ifndef __SIZEOF_INT128__
778#define _LIBCPP_HAS_NO_INT128
779#endif
780
Eric Fiselierc6f17cc2016-09-25 03:34:28 +0000781#ifdef _LIBCPP_CXX03_LANG
782# if __has_extension(c_static_assert)
783# define static_assert(__b, __m) _Static_assert(__b, __m)
784# else
Richard Smith7f0d6482015-10-13 23:12:22 +0000785extern "C++" {
Howard Hinnantc51e1022010-05-11 19:42:16 +0000786template <bool> struct __static_assert_test;
787template <> struct __static_assert_test<true> {};
788template <unsigned> struct __static_assert_check {};
Richard Smith7f0d6482015-10-13 23:12:22 +0000789}
Howard Hinnantc51e1022010-05-11 19:42:16 +0000790#define static_assert(__b, __m) \
791 typedef __static_assert_check<sizeof(__static_assert_test<(__b)>)> \
792 _LIBCPP_CONCAT(__t, __LINE__)
Eric Fiselierc6f17cc2016-09-25 03:34:28 +0000793# endif // __has_extension(c_static_assert)
794#endif // _LIBCPP_CXX03_LANG
Howard Hinnantc51e1022010-05-11 19:42:16 +0000795
796#ifdef _LIBCPP_HAS_NO_DECLTYPE
Eric Fiselier86fcc922015-07-10 20:26:38 +0000797// GCC 4.6 provides __decltype in all standard modes.
Eric Fiselier73409252017-01-23 21:41:13 +0000798#if __has_keyword(__decltype) || _LIBCPP_CLANG_VER >= 304 || _GNUC_VER >= 406
Eric Fiselier1ac54842015-06-13 06:27:17 +0000799# define decltype(__x) __decltype(__x)
800#else
801# define decltype(__x) __typeof__(__x)
802#endif
Howard Hinnantc51e1022010-05-11 19:42:16 +0000803#endif
804
Howard Hinnant62c8c0b2010-09-06 19:10:31 +0000805#ifdef _LIBCPP_HAS_NO_CONSTEXPR
Howard Hinnant664183b2012-04-02 00:40:41 +0000806#define _LIBCPP_CONSTEXPR
807#else
808#define _LIBCPP_CONSTEXPR constexpr
Howard Hinnant62c8c0b2010-09-06 19:10:31 +0000809#endif
810
Eric Fiselier07b2b552016-11-18 06:42:17 +0000811#ifdef _LIBCPP_CXX03_LANG
Howard Hinnant3d284222013-05-02 20:18:43 +0000812#define _LIBCPP_DEFAULT {}
813#else
814#define _LIBCPP_DEFAULT = default;
815#endif
816
Eric Fiselier2d8515f2017-01-06 20:58:25 +0000817#ifdef _LIBCPP_CXX03_LANG
Eric Fiselierd06276b2016-03-31 02:15:15 +0000818#define _LIBCPP_EQUAL_DELETE
819#else
820#define _LIBCPP_EQUAL_DELETE = delete
821#endif
822
Nuno Lopes22df2dc2012-06-28 16:47:34 +0000823#ifdef __GNUC__
Joerg Sonnenberger4944e0b2013-04-29 19:52:08 +0000824#define _NOALIAS __attribute__((__malloc__))
Nuno Lopes22df2dc2012-06-28 16:47:34 +0000825#else
826#define _NOALIAS
827#endif
828
Eric Fiselier70d0df32017-01-13 18:03:46 +0000829#if __has_feature(cxx_explicit_conversions) || defined(__IBMCPP__) || \
Eric Fiselier6a5f6f92016-12-30 14:05:52 +0000830 (!defined(_LIBCPP_CXX03_LANG) && defined(__GNUC__)) // All supported GCC versions
Howard Hinnant86a291f2012-02-21 21:46:43 +0000831# define _LIBCPP_EXPLICIT explicit
832#else
833# define _LIBCPP_EXPLICIT
834#endif
835
Richard Smith1f1c1472014-06-04 19:54:15 +0000836#if !__has_builtin(__builtin_operator_new) || !__has_builtin(__builtin_operator_delete)
837# define _LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE
838#endif
839
Howard Hinnant09bc0c92011-12-02 19:36:40 +0000840#ifdef _LIBCPP_HAS_NO_STRONG_ENUMS
Howard Hinnant8331b762013-03-06 23:30:19 +0000841#define _LIBCPP_DECLARE_STRONG_ENUM(x) struct _LIBCPP_TYPE_VIS x { enum __lx
Howard Hinnant09bc0c92011-12-02 19:36:40 +0000842#define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x) \
Howard Hinnant49e145e2012-10-30 19:06:59 +0000843 __lx __v_; \
844 _LIBCPP_ALWAYS_INLINE x(__lx __v) : __v_(__v) {} \
845 _LIBCPP_ALWAYS_INLINE explicit x(int __v) : __v_(static_cast<__lx>(__v)) {} \
Howard Hinnant09bc0c92011-12-02 19:36:40 +0000846 _LIBCPP_ALWAYS_INLINE operator int() const {return __v_;} \
847 };
848#else // _LIBCPP_HAS_NO_STRONG_ENUMS
Eric Fiselier1b57fa82016-09-15 22:27:07 +0000849#define _LIBCPP_DECLARE_STRONG_ENUM(x) enum class _LIBCPP_ENUM_VIS x
Howard Hinnant09bc0c92011-12-02 19:36:40 +0000850#define _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(x)
851#endif // _LIBCPP_HAS_NO_STRONG_ENUMS
852
Howard Hinnant6148a9b2013-08-23 20:10:18 +0000853#ifdef _LIBCPP_DEBUG
854# if _LIBCPP_DEBUG == 0
Howard Hinnant8ea98242013-08-23 17:37:05 +0000855# define _LIBCPP_DEBUG_LEVEL 1
Howard Hinnant6148a9b2013-08-23 20:10:18 +0000856# elif _LIBCPP_DEBUG == 1
Howard Hinnant8ea98242013-08-23 17:37:05 +0000857# define _LIBCPP_DEBUG_LEVEL 2
858# else
Howard Hinnant6148a9b2013-08-23 20:10:18 +0000859# error Supported values for _LIBCPP_DEBUG are 0 and 1
Howard Hinnant8ea98242013-08-23 17:37:05 +0000860# endif
Eric Fiselier59cd98b2017-02-04 23:22:28 +0000861# if !defined(_LIBCPP_BUILDING_LIBRARY)
Howard Hinnant8ea98242013-08-23 17:37:05 +0000862# define _LIBCPP_EXTERN_TEMPLATE(...)
Eric Fiselier59cd98b2017-02-04 23:22:28 +0000863# endif
Howard Hinnant8ea98242013-08-23 17:37:05 +0000864#endif
865
Shoaib Meenai2ba461c2017-04-13 20:13:32 +0000866#ifdef _LIBCPP_DISABLE_EXTERN_TEMPLATE
867#define _LIBCPP_EXTERN_TEMPLATE(...)
868#define _LIBCPP_EXTERN_TEMPLATE2(...)
869#endif
870
Howard Hinnant862ca992012-11-06 21:08:48 +0000871#ifndef _LIBCPP_EXTERN_TEMPLATE
Justin Bogner67105aa2014-08-15 17:58:56 +0000872#define _LIBCPP_EXTERN_TEMPLATE(...) extern template __VA_ARGS__;
Howard Hinnant862ca992012-11-06 21:08:48 +0000873#endif
874
Howard Hinnant8ea98242013-08-23 17:37:05 +0000875#ifndef _LIBCPP_EXTERN_TEMPLATE2
876#define _LIBCPP_EXTERN_TEMPLATE2(...) extern template __VA_ARGS__;
877#endif
878
Tim Northover0528f502014-03-30 14:59:12 +0000879#if defined(__APPLE__) && defined(__LP64__) && !defined(__x86_64__)
Tim Northovera4fb4622014-03-30 11:34:26 +0000880#define _LIBCPP_NONUNIQUE_RTTI_BIT (1ULL << 63)
881#endif
882
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000883#if defined(__APPLE__) || defined(__FreeBSD__) || defined(_LIBCPP_MSVCRT) || \
Ed Schouten13eb7dc2015-03-10 09:26:38 +0000884 defined(__sun__) || defined(__NetBSD__) || defined(__CloudABI__)
Alexis Hunt1adf2aa2011-07-15 05:40:33 +0000885#define _LIBCPP_LOCALE__L_EXTENSIONS 1
886#endif
Yaron Keren804da952013-12-20 13:19:45 +0000887
Ben Craig133f4c12016-02-10 13:47:25 +0000888#if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
889// Most unix variants have catopen. These are the specific ones that don't.
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +0000890#if !defined(__BIONIC__) && !defined(_NEWLIB_VERSION)
Ed Schouten118b6032015-03-11 16:39:36 +0000891#define _LIBCPP_HAS_CATOPEN 1
892#endif
Ben Craig133f4c12016-02-10 13:47:25 +0000893#endif
Ed Schouten118b6032015-03-11 16:39:36 +0000894
Marshall Clow82378c02013-03-18 19:34:07 +0000895#ifdef __FreeBSD__
David Chisnall6ae8f352011-11-13 17:15:33 +0000896#define _DECLARE_C99_LDBL_MATH 1
897#endif
Alexis Hunt1adf2aa2011-07-15 05:40:33 +0000898
Eric Fiselier44832fb2017-01-20 01:47:26 +0000899#if defined(__APPLE__)
900# if !defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && \
901 defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__)
Marshall Clow04ac8e02017-01-23 19:51:54 +0000902# define __MAC_OS_X_VERSION_MIN_REQUIRED __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__
Eric Fiselier44832fb2017-01-20 01:47:26 +0000903# endif
904# if defined(__MAC_OS_X_VERSION_MIN_REQUIRED)
905# if __MAC_OS_X_VERSION_MIN_REQUIRED < 1060
906# define _LIBCPP_HAS_NO_ALIGNED_ALLOCATION
907# endif
908# endif
909#endif // defined(__APPLE__)
910
Marshall Clow82378c02013-03-18 19:34:07 +0000911#if defined(__APPLE__) || defined(__FreeBSD__)
Howard Hinnantf312e3e2011-09-28 23:39:33 +0000912#define _LIBCPP_HAS_DEFAULTRUNELOCALE
Alexis Hunt5a4dd562011-07-09 01:09:31 +0000913#endif
914
Marshall Clow82378c02013-03-18 19:34:07 +0000915#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__sun__)
Alexis Huntc2017f12011-07-09 03:40:04 +0000916#define _LIBCPP_WCTYPE_IS_MASK
917#endif
918
Howard Hinnantdf7d11e2013-05-07 20:16:13 +0000919#ifndef _LIBCPP_STD_VER
920# if __cplusplus <= 201103L
921# define _LIBCPP_STD_VER 11
Marshall Clow348694e2014-06-06 22:31:09 +0000922# elif __cplusplus <= 201402L
923# define _LIBCPP_STD_VER 14
Marshall Clow3986c602017-07-17 03:02:27 +0000924# elif __cplusplus <= 201703L
925# define _LIBCPP_STD_VER 17
Howard Hinnantdf7d11e2013-05-07 20:16:13 +0000926# else
Marshall Clow3986c602017-07-17 03:02:27 +0000927# define _LIBCPP_STD_VER 18 // current year, or date of c++2a ratification
Howard Hinnantdf7d11e2013-05-07 20:16:13 +0000928# endif
929#endif // _LIBCPP_STD_VER
930
Marshall Clowa2cbe0d2013-09-28 18:35:31 +0000931#if _LIBCPP_STD_VER > 11
932#define _LIBCPP_DEPRECATED [[deprecated]]
933#else
934#define _LIBCPP_DEPRECATED
935#endif
936
Marshall Clow1045cee2013-07-15 14:57:19 +0000937#if _LIBCPP_STD_VER <= 11
Marshall Clowccaa0fb2013-08-27 20:18:59 +0000938#define _LIBCPP_EXPLICIT_AFTER_CXX11
Marshall Clowa2cbe0d2013-09-28 18:35:31 +0000939#define _LIBCPP_DEPRECATED_AFTER_CXX11
Marshall Clow1045cee2013-07-15 14:57:19 +0000940#else
Marshall Clowccaa0fb2013-08-27 20:18:59 +0000941#define _LIBCPP_EXPLICIT_AFTER_CXX11 explicit
Marshall Clowa2cbe0d2013-09-28 18:35:31 +0000942#define _LIBCPP_DEPRECATED_AFTER_CXX11 [[deprecated]]
Marshall Clow1045cee2013-07-15 14:57:19 +0000943#endif
944
Eric Fiselierb4c0c662014-07-17 05:16:18 +0000945#if _LIBCPP_STD_VER > 11 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR)
946#define _LIBCPP_CONSTEXPR_AFTER_CXX11 constexpr
947#else
948#define _LIBCPP_CONSTEXPR_AFTER_CXX11
949#endif
950
Eric Fiselier0b3bfbe2016-03-17 03:30:56 +0000951#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_CXX14_CONSTEXPR)
952#define _LIBCPP_CONSTEXPR_AFTER_CXX14 constexpr
953#else
954#define _LIBCPP_CONSTEXPR_AFTER_CXX14
955#endif
956
Eric Fiseliere4837422016-11-17 20:08:43 +0000957// FIXME: Remove all usages of this macro once compilers catch up.
958#if !defined(__cpp_inline_variables) || (__cpp_inline_variables < 201606L)
959# define _LIBCPP_HAS_NO_INLINE_VARIABLES
960#endif
961
Dimitry Andric830fb602015-08-19 06:43:33 +0000962#ifdef _LIBCPP_HAS_NO_RVALUE_REFERENCES
963# define _LIBCPP_EXPLICIT_MOVE(x) _VSTD::move(x)
964#else
965# define _LIBCPP_EXPLICIT_MOVE(x) (x)
966#endif
967
Marshall Clow2cd9d372014-05-08 14:14:06 +0000968#ifndef _LIBCPP_HAS_NO_ASAN
Eric Fiselier6a213162016-12-23 20:03:52 +0000969_LIBCPP_FUNC_VIS extern "C" void __sanitizer_annotate_contiguous_container(
Marshall Clow2cd9d372014-05-08 14:14:06 +0000970 const void *, const void *, const void *, const void *);
971#endif
972
Howard Hinnant13087882013-10-04 21:24:21 +0000973// Try to find out if RTTI is disabled.
974// g++ and cl.exe have RTTI on by default and define a macro when it is.
975// g++ only defines the macro in 4.3.2 and onwards.
976#if !defined(_LIBCPP_NO_RTTI)
Marshall Clowb63146c2015-09-22 21:58:30 +0000977# if defined(__GNUC__) && ((__GNUC__ >= 5) || (__GNUC__ == 4 && \
Alexey Volkov51353fd2014-09-03 14:30:39 +0000978 (__GNUC_MINOR__ >= 3 || __GNUC_PATCHLEVEL__ >= 2))) && !defined(__GXX_RTTI)
Howard Hinnant13087882013-10-04 21:24:21 +0000979# define _LIBCPP_NO_RTTI
Eric Fiselier1e29ffc2017-05-10 21:40:58 +0000980# elif defined(_LIBCPP_COMPILER_MSVC) && !defined(_CPPRTTI)
Howard Hinnant13087882013-10-04 21:24:21 +0000981# define _LIBCPP_NO_RTTI
982# endif
983#endif
984
Howard Hinnant33f04722013-10-04 23:56:37 +0000985#ifndef _LIBCPP_WEAK
986# define _LIBCPP_WEAK __attribute__((__weak__))
987#endif
988
Asiri Rathnayakefa2e2032016-05-06 14:06:29 +0000989// Thread API
Eric Fiselierbfd45532017-01-06 23:15:16 +0000990#if !defined(_LIBCPP_HAS_NO_THREADS) && \
Asiri Rathnayakec07f0be2017-02-27 16:10:57 +0000991 !defined(_LIBCPP_HAS_THREAD_API_PTHREAD) && \
Eric Fiselierd8a6c892017-05-10 21:34:58 +0000992 !defined(_LIBCPP_HAS_THREAD_API_WIN32) && \
Asiri Rathnayakec07f0be2017-02-27 16:10:57 +0000993 !defined(_LIBCPP_HAS_THREAD_API_EXTERNAL)
Asiri Rathnayakefa2e2032016-05-06 14:06:29 +0000994# if defined(__FreeBSD__) || \
Petr Hosek34a54552016-10-10 18:53:32 +0000995 defined(__Fuchsia__) || \
Asiri Rathnayakefa2e2032016-05-06 14:06:29 +0000996 defined(__NetBSD__) || \
997 defined(__linux__) || \
998 defined(__APPLE__) || \
Eric Fiselier7ad718a2016-05-07 17:05:46 +0000999 defined(__CloudABI__) || \
Eric Fiselier08fc4c92017-05-10 02:36:48 +00001000 defined(__sun__) || \
Eric Fiselierd8a6c892017-05-10 21:34:58 +00001001 (defined(__MINGW32__) && __libcpp_has_include(<pthread.h>))
Eric Fiselierbfd45532017-01-06 23:15:16 +00001002# define _LIBCPP_HAS_THREAD_API_PTHREAD
Saleem Abdulrasoolb75a5742017-01-07 03:07:45 +00001003# elif defined(_LIBCPP_WIN32API)
1004# define _LIBCPP_HAS_THREAD_API_WIN32
Asiri Rathnayakefa2e2032016-05-06 14:06:29 +00001005# else
1006# error "No thread API"
Ben Craig5593c4f2016-05-25 17:40:09 +00001007# endif // _LIBCPP_HAS_THREAD_API
Asiri Rathnayakefa2e2032016-05-06 14:06:29 +00001008#endif // _LIBCPP_HAS_NO_THREADS
1009
Ben Craig5593c4f2016-05-25 17:40:09 +00001010#if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_PTHREAD)
1011# error _LIBCPP_HAS_THREAD_API_PTHREAD may only be defined when \
1012 _LIBCPP_HAS_NO_THREADS is not defined.
1013#endif
Asiri Rathnayakefa2e2032016-05-06 14:06:29 +00001014
Asiri Rathnayake94340d22016-09-11 21:46:40 +00001015#if defined(_LIBCPP_HAS_NO_THREADS) && defined(_LIBCPP_HAS_THREAD_API_EXTERNAL)
Asiri Rathnayake66a01e22017-02-27 15:49:51 +00001016# error _LIBCPP_HAS_THREAD_API_EXTERNAL may not be defined when \
Asiri Rathnayake94340d22016-09-11 21:46:40 +00001017 _LIBCPP_HAS_NO_THREADS is defined.
1018#endif
1019
Eric Fiselier715b4162014-12-06 20:09:11 +00001020#if defined(_LIBCPP_HAS_NO_MONOTONIC_CLOCK) && !defined(_LIBCPP_HAS_NO_THREADS)
1021# error _LIBCPP_HAS_NO_MONOTONIC_CLOCK may only be defined when \
1022 _LIBCPP_HAS_NO_THREADS is defined.
1023#endif
1024
Ed Schouten7009f4e2015-03-12 15:44:39 +00001025// Systems that use capability-based security (FreeBSD with Capsicum,
1026// Nuxi CloudABI) may only provide local filesystem access (using *at()).
1027// Functions like open(), rename(), unlink() and stat() should not be
1028// used, as they attempt to access the global filesystem namespace.
1029#ifdef __CloudABI__
1030#define _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE
1031#endif
1032
Ed Schouten3a75c0b2015-03-26 14:35:46 +00001033// CloudABI is intended for running networked services. Processes do not
1034// have standard input and output channels.
1035#ifdef __CloudABI__
1036#define _LIBCPP_HAS_NO_STDIN
1037#define _LIBCPP_HAS_NO_STDOUT
1038#endif
1039
Dan Albert21800dc2016-09-19 18:00:45 +00001040#if defined(__BIONIC__) || defined(__CloudABI__) || \
Petr Hosekfdb4a872017-04-13 21:29:21 +00001041 defined(__Fuchsia__) || defined(_LIBCPP_HAS_MUSL_LIBC)
Dan Albertebdf28b2015-03-11 00:51:06 +00001042#define _LIBCPP_PROVIDES_DEFAULT_RUNE_TABLE
1043#endif
1044
Ed Schoutena810d5e2016-12-30 10:44:00 +00001045// Thread-unsafe functions such as strtok() and localtime()
Ed Schouten137c8632015-06-24 08:44:38 +00001046// are not available.
1047#ifdef __CloudABI__
1048#define _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS
1049#endif
1050
Eric Fiselierba725072017-01-14 04:27:58 +00001051#if __has_feature(cxx_atomic) || __has_extension(c_atomic) || __has_keyword(_Atomic)
Eric Fiselier8020b6c2015-08-19 17:21:46 +00001052#define _LIBCPP_HAS_C_ATOMIC_IMP
1053#elif _GNUC_VER > 407
1054#define _LIBCPP_HAS_GCC_ATOMIC_IMP
1055#endif
1056
1057#if (!defined(_LIBCPP_HAS_C_ATOMIC_IMP) && !defined(_LIBCPP_HAS_GCC_ATOMIC_IMP)) \
1058 || defined(_LIBCPP_HAS_NO_THREADS)
1059#define _LIBCPP_HAS_NO_ATOMIC_HEADER
1060#endif
1061
Marshall Clow91c7f642016-01-11 19:27:10 +00001062#ifndef _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK
1063#define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK
Eric Fiselier100e24b2016-02-11 11:59:44 +00001064#endif
1065
Saleem Abdulrasoolb82f9602017-02-13 15:26:51 +00001066#if defined(_LIBCPP_ENABLE_THREAD_SAFETY_ANNOTATIONS)
1067#if defined(__clang__) && __has_attribute(acquire_capability)
1068// Work around the attribute handling in clang. When both __declspec and
1069// __attribute__ are present, the processing goes awry preventing the definition
1070// of the types.
1071#if !defined(_LIBCPP_OBJECT_FORMAT_COFF)
Eric Fiselierc0c6c982016-03-16 02:30:06 +00001072#define _LIBCPP_HAS_THREAD_SAFETY_ANNOTATIONS
1073#endif
Saleem Abdulrasoolb82f9602017-02-13 15:26:51 +00001074#endif
1075#endif
Eric Fiselierc0c6c982016-03-16 02:30:06 +00001076
Eric Fiselier0d3da632016-09-03 00:11:33 +00001077#if __has_attribute(require_constant_initialization)
1078#define _LIBCPP_SAFE_STATIC __attribute__((__require_constant_initialization__))
1079#else
1080#define _LIBCPP_SAFE_STATIC
1081#endif
1082
Eric Fiselierd4ec6352016-10-12 07:46:20 +00001083#if !__has_builtin(__builtin_addressof) && _GNUC_VER < 700
Eric Fiselierc9a0e822017-04-12 23:08:46 +00001084# define _LIBCPP_HAS_NO_BUILTIN_ADDRESSOF
Eric Fiselierd4ec6352016-10-12 07:46:20 +00001085#endif
1086
Shoaib Meenai3879c9b2016-10-31 15:09:10 +00001087#if !defined(_LIBCPP_HAS_NO_OFF_T_FUNCTIONS)
Saleem Abdulrasoolee302e42017-01-03 21:53:51 +00001088#if defined(_LIBCPP_MSVCRT) || defined(_NEWLIB_VERSION)
Shoaib Meenai3879c9b2016-10-31 15:09:10 +00001089#define _LIBCPP_HAS_NO_OFF_T_FUNCTIONS
1090#endif
1091#endif
1092
Eric Fiseliera7a14ed2017-01-13 22:02:08 +00001093#if __has_attribute(diagnose_if) && !defined(_LIBCPP_DISABLE_ADDITIONAL_DIAGNOSTICS)
1094# define _LIBCPP_DIAGNOSE_WARNING(...) \
Eric Fiselierb5ab51d2017-01-13 23:45:39 +00001095 __attribute__((diagnose_if(__VA_ARGS__, "warning")))
Eric Fiseliera7a14ed2017-01-13 22:02:08 +00001096# define _LIBCPP_DIAGNOSE_ERROR(...) \
Eric Fiselierb5ab51d2017-01-13 23:45:39 +00001097 __attribute__((diagnose_if(__VA_ARGS__, "error")))
Eric Fiseliera7a14ed2017-01-13 22:02:08 +00001098#else
1099# define _LIBCPP_DIAGNOSE_WARNING(...)
1100# define _LIBCPP_DIAGNOSE_ERROR(...)
1101#endif
1102
Eric Fiselier53313f72017-05-05 20:50:24 +00001103#if __has_attribute(fallthough) || _GNUC_VER >= 700
Eric Fiselier4db80032017-05-05 20:32:26 +00001104// Use a function like macro to imply that it must be followed by a semicolon
1105#define _LIBCPP_FALLTHROUGH() __attribute__((__fallthrough__))
1106#else
1107#define _LIBCPP_FALLTHROUGH() ((void)0)
1108#endif
1109
Eric Fiseliere3cec5f2017-01-16 21:15:08 +00001110#if defined(_LIBCPP_ABI_MICROSOFT) && \
1111 (defined(_LIBCPP_COMPILER_MSVC) || __has_declspec_attribute(empty_bases))
1112# define _LIBCPP_DECLSPEC_EMPTY_BASES __declspec(empty_bases)
1113#else
1114# define _LIBCPP_DECLSPEC_EMPTY_BASES
1115#endif
1116
Eric Fiselierddd77792017-02-17 03:25:08 +00001117#if defined(_LIBCPP_ENABLE_CXX17_REMOVED_FEATURES)
Eric Fiselier65d5b4c2017-02-17 03:30:25 +00001118# define _LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR
Eric Fiselierddd77792017-02-17 03:25:08 +00001119# define _LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS
Marshall Clowdfab6ae2017-03-23 13:44:06 +00001120# define _LIBCPP_ENABLE_CXX17_REMOVED_RANDOM_SHUFFLE
Marshall Clow26a027c2017-04-13 18:25:32 +00001121# define _LIBCPP_ENABLE_CXX17_REMOVED_BINDERS
Eric Fiselierddd77792017-02-17 03:25:08 +00001122#endif // _LIBCPP_ENABLE_CXX17_REMOVED_FEATURES
1123
Marshall Clow580b6e62017-03-24 03:40:36 +00001124#if !defined(__cpp_deduction_guides) || __cpp_deduction_guides < 201611
1125# define _LIBCPP_HAS_NO_DEDUCTION_GUIDES
1126#endif
1127
Eric Fiselierc9a0e822017-04-12 23:08:46 +00001128#if !__has_keyword(__is_aggregate) && (_GNUC_VER_NEW < 7001)
1129# define _LIBCPP_HAS_NO_IS_AGGREGATE
1130#endif
1131
Eric Fiselier40b66222017-05-26 01:52:59 +00001132#if !defined(__cpp_coroutines) || __cpp_coroutines < 201703L
1133# define _LIBCPP_HAS_NO_COROUTINES
1134#endif
1135
Mehdi Amini228053d2017-05-04 17:08:54 +00001136// Decide whether to use availability macros.
1137#if !defined(_LIBCPP_BUILDING_LIBRARY) && \
1138 !defined(_LIBCPP_DISABLE_AVAILABILITY) && \
1139 __has_feature(attribute_availability_with_strict) && \
1140 __has_feature(attribute_availability_in_templates)
1141#ifdef __APPLE__
1142#define _LIBCPP_USE_AVAILABILITY_APPLE
1143#endif
1144#endif
1145
1146// Define availability macros.
1147#if defined(_LIBCPP_USE_AVAILABILITY_APPLE)
1148#define _LIBCPP_AVAILABILITY_SHARED_MUTEX \
1149 __attribute__((availability(macosx,strict,introduced=10.12))) \
1150 __attribute__((availability(ios,strict,introduced=10.0))) \
1151 __attribute__((availability(tvos,strict,introduced=10.0))) \
1152 __attribute__((availability(watchos,strict,introduced=3.0)))
1153#define _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS __attribute__((unavailable))
1154#define _LIBCPP_AVAILABILITY_BAD_ARRAY_LENGTH __attribute__((unavailable))
Duncan P. N. Exon Smith7566f702017-06-18 14:52:26 +00001155#define _LIBCPP_AVAILABILITY_BAD_ANY_CAST __attribute__((unavailable))
Mehdi Amini228053d2017-05-04 17:08:54 +00001156#define _LIBCPP_AVAILABILITY_UNCAUGHT_EXCEPTIONS \
1157 __attribute__((availability(macosx,strict,introduced=10.12))) \
1158 __attribute__((availability(ios,strict,introduced=10.0))) \
1159 __attribute__((availability(tvos,strict,introduced=10.0))) \
1160 __attribute__((availability(watchos,strict,introduced=3.0)))
1161#define _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE \
1162 __attribute__((availability(macosx,strict,introduced=10.12))) \
1163 __attribute__((availability(ios,strict,introduced=10.0))) \
1164 __attribute__((availability(tvos,strict,introduced=10.0))) \
1165 __attribute__((availability(watchos,strict,introduced=3.0)))
1166#define _LIBCPP_AVAILABILITY_FUTURE_ERROR \
1167 __attribute__((availability(ios,strict,introduced=6.0)))
1168#define _LIBCPP_AVAILABILITY_TYPEINFO_VTABLE \
1169 __attribute__((availability(macosx,strict,introduced=10.9))) \
1170 __attribute__((availability(ios,strict,introduced=7.0)))
1171#define _LIBCPP_AVAILABILITY_LOCALE_CATEGORY \
1172 __attribute__((availability(macosx,strict,introduced=10.9))) \
1173 __attribute__((availability(ios,strict,introduced=7.0)))
1174#define _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR \
1175 __attribute__((availability(macosx,strict,introduced=10.9))) \
1176 __attribute__((availability(ios,strict,introduced=7.0)))
1177#else
1178#define _LIBCPP_AVAILABILITY_SHARED_MUTEX
1179#define _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS
1180#define _LIBCPP_AVAILABILITY_BAD_ARRAY_LENGTH
Duncan P. N. Exon Smith7566f702017-06-18 14:52:26 +00001181#define _LIBCPP_AVAILABILITY_BAD_ANY_CAST
Mehdi Amini228053d2017-05-04 17:08:54 +00001182#define _LIBCPP_AVAILABILITY_UNCAUGHT_EXCEPTIONS
1183#define _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE
1184#define _LIBCPP_AVAILABILITY_FUTURE_ERROR
1185#define _LIBCPP_AVAILABILITY_TYPEINFO_VTABLE
1186#define _LIBCPP_AVAILABILITY_LOCALE_CATEGORY
1187#define _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR
1188#endif
1189
1190// Define availability that depends on _LIBCPP_NO_EXCEPTIONS.
1191#ifdef _LIBCPP_NO_EXCEPTIONS
1192#define _LIBCPP_AVAILABILITY_DYNARRAY
1193#define _LIBCPP_AVAILABILITY_FUTURE
Duncan P. N. Exon Smith7566f702017-06-18 14:52:26 +00001194#define _LIBCPP_AVAILABILITY_THROW_BAD_ANY_CAST
Mehdi Amini228053d2017-05-04 17:08:54 +00001195#else
1196#define _LIBCPP_AVAILABILITY_DYNARRAY _LIBCPP_AVAILABILITY_BAD_ARRAY_LENGTH
1197#define _LIBCPP_AVAILABILITY_FUTURE _LIBCPP_AVAILABILITY_FUTURE_ERROR
Duncan P. N. Exon Smith7566f702017-06-18 14:52:26 +00001198#define _LIBCPP_AVAILABILITY_THROW_BAD_ANY_CAST \
1199 _LIBCPP_AVAILABILITY_BAD_ANY_CAST
Mehdi Amini228053d2017-05-04 17:08:54 +00001200#endif
1201
1202// Availability of stream API in the dylib got dropped and re-added. The
1203// extern template should effectively be available at:
1204// availability(macosx,introduced=10.9)
1205// availability(ios,introduced=7.0)
1206#if defined(_LIBCPP_USE_AVAILABILITY_APPLE) && \
1207 ((defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && \
Duncan P. N. Exon Smithb28fea72017-06-18 16:50:23 +00001208 __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 1090) || \
Mehdi Amini228053d2017-05-04 17:08:54 +00001209 (defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) && \
Duncan P. N. Exon Smithb28fea72017-06-18 16:50:23 +00001210 __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ < 70000))
Mehdi Amini228053d2017-05-04 17:08:54 +00001211#define _LIBCPP_AVAILABILITY_NO_STREAMS_EXTERN_TEMPLATE
1212#endif
1213
Eric Fiselierf4433a32017-05-31 22:07:49 +00001214#if defined(_LIBCPP_COMPILER_IBM)
1215#define _LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO
1216#endif
1217
1218#if defined(_LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO)
1219# define _LIBCPP_PUSH_MACROS
1220# define _LIBCPP_POP_MACROS
1221#else
1222 // Don't warn about macro conflicts when we can restore them at the
1223 // end of the header.
1224# ifndef _LIBCPP_DISABLE_MACRO_CONFLICT_WARNINGS
1225# define _LIBCPP_DISABLE_MACRO_CONFLICT_WARNINGS
1226# endif
1227# if defined(_LIBCPP_COMPILER_MSVC)
1228# define _LIBCPP_PUSH_MACROS \
1229 __pragma(push_macro("min")) \
1230 __pragma(push_macro("max"))
1231# define _LIBCPP_POP_MACROS \
1232 __pragma(pop_macro("min")) \
1233 __pragma(pop_macro("max"))
1234# else
1235# define _LIBCPP_PUSH_MACROS \
1236 _Pragma("push_macro(\"min\")") \
1237 _Pragma("push_macro(\"max\")")
1238# define _LIBCPP_POP_MACROS \
1239 _Pragma("pop_macro(\"min\")") \
1240 _Pragma("pop_macro(\"max\")")
1241# endif
1242#endif // defined(_LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO)
1243
Eric Fiselier911dcad2017-06-16 01:57:41 +00001244
1245#endif // __cplusplus
1246
Eric Fiselier8020b6c2015-08-19 17:21:46 +00001247#endif // _LIBCPP_CONFIG