2026-05-27_18-23_1779906181/libstdc++-api-html.tar.gz:libstdc++-api-html/a00014_source.html

// C compatibility header <stdatomic.h> -*- C++ -*-


// Copyright The GNU Toolchain Authors.

//

// This file is part of the GNU ISO C++ Library.  This library is free

// software; you can redistribute it and/or modify it under the

// terms of the GNU General Public License as published by the

// Free Software Foundation; either version 3, or (at your option)

// any later version.


// This library is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.


// Under Section 7 of GPL version 3, you are granted additional

// permissions described in the GCC Runtime Library Exception, version

// 3.1, as published by the Free Software Foundation.


// You should have received a copy of the GNU General Public License and

// a copy of the GCC Runtime Library Exception along with this program;

// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see

// <http://www.gnu.org/licenses/>.


/** @file include/stdatomic.h

 *  This is a Standard C++ Library header.

 */


#ifndef _GLIBCXX_STDATOMIC_H

#define _GLIBCXX_STDATOMIC_H


#define __glibcxx_want_stdatomic_h

#include <bits/version.h>


#ifdef __cpp_lib_stdatomic_h // C++ >= 23

#include <atomic>


#define _Atomic(_Tp) ::std::atomic<_Tp>


using std::memory_order;

using std::memory_order_relaxed;

#pragma GCC diagnostic push

#pragma GCC diagnostic ignored "-Wdeprecated-declarations"

using std::memory_order_consume;

#pragma GCC diagnostic pop

using std::memory_order_acquire;

using std::memory_order_release;

using std::memory_order_acq_rel;

using std::memory_order_seq_cst;

using std::atomic_flag;

using std::atomic_bool;

using std::atomic_char;

using std::atomic_schar;

using std::atomic_uchar;

using std::atomic_short;

using std::atomic_ushort;

using std::atomic_int;

using std::atomic_uint;

using std::atomic_long;

using std::atomic_ulong;

using std::atomic_llong;

using std::atomic_ullong;

#ifdef _GLIBCXX_USE_CHAR8_T

using std::atomic_char8_t;

#endif

using std::atomic_char16_t;

using std::atomic_char32_t;

using std::atomic_wchar_t;

#ifdef _GLIBCXX_USE_C99_STDINT

using std::atomic_int8_t;

using std::atomic_uint8_t;

using std::atomic_int16_t;

using std::atomic_uint16_t;

using std::atomic_int32_t;

using std::atomic_uint32_t;

using std::atomic_int64_t;

using std::atomic_uint64_t;

using std::atomic_int_least8_t;

using std::atomic_uint_least8_t;

using std::atomic_int_least16_t;

using std::atomic_uint_least16_t;

using std::atomic_int_least32_t;

using std::atomic_uint_least32_t;

using std::atomic_int_least64_t;

using std::atomic_uint_least64_t;

using std::atomic_int_fast8_t;

using std::atomic_uint_fast8_t;

using std::atomic_int_fast16_t;

using std::atomic_uint_fast16_t;

using std::atomic_int_fast32_t;

using std::atomic_uint_fast32_t;

using std::atomic_int_fast64_t;

using std::atomic_uint_fast64_t;

#endif

using std::atomic_intptr_t;

using std::atomic_uintptr_t;

using std::atomic_size_t;

using std::atomic_ptrdiff_t;

#ifdef _GLIBCXX_USE_C99_STDINT

using std::atomic_intmax_t;

using std::atomic_uintmax_t;

#endif

using std::atomic_is_lock_free;

using std::atomic_load;

using std::atomic_load_explicit;

using std::atomic_store;

using std::atomic_store_explicit;

using std::atomic_exchange;

using std::atomic_exchange_explicit;

using std::atomic_compare_exchange_strong;

using std::atomic_compare_exchange_strong_explicit;

using std::atomic_compare_exchange_weak;

using std::atomic_compare_exchange_weak_explicit;

using std::atomic_fetch_add;

using std::atomic_fetch_add_explicit;

using std::atomic_fetch_sub;

using std::atomic_fetch_sub_explicit;

using std::atomic_fetch_or;

using std::atomic_fetch_or_explicit;

using std::atomic_fetch_xor;

using std::atomic_fetch_xor_explicit;

using std::atomic_fetch_and;

using std::atomic_fetch_and_explicit;

using std::atomic_flag_test_and_set;

using std::atomic_flag_test_and_set_explicit;

using std::atomic_flag_clear;

using std::atomic_flag_clear_explicit;

using std::atomic_thread_fence;

using std::atomic_signal_fence;


#elif defined _GLIBCXX_CLANG

# include_next <stdatomic.h>

#endif // __cpp_lib_stdatomic_h

#endif // _GLIBCXX_STDATOMIC_H

atomic

version.h

std::atomic_ulong
atomic< unsigned long > atomic_ulong
atomic_ulong
Definition atomic:1126

std::atomic_intmax_t
atomic< intmax_t > atomic_intmax_t
atomic_intmax_t
Definition atomic:1240

std::atomic_uintptr_t
atomic< uintptr_t > atomic_uintptr_t
atomic_uintptr_t
Definition atomic:1231

std::atomic_schar
atomic< signed char > atomic_schar
atomic_schar
Definition atomic:1105

std::atomic_int_least8_t
atomic< int_least8_t > atomic_int_least8_t
atomic_int_least8_t
Definition atomic:1178

std::atomic_ullong
atomic< unsigned long long > atomic_ullong
atomic_ullong
Definition atomic:1132

std::atomic_uint_fast8_t
atomic< uint_fast8_t > atomic_uint_fast8_t
atomic_uint_fast8_t
Definition atomic:1206

std::atomic_intptr_t
atomic< intptr_t > atomic_intptr_t
atomic_intptr_t
Definition atomic:1228

std::atomic_int16_t
atomic< int16_t > atomic_int16_t
atomic_int16_t
Definition atomic:1159

std::atomic_size_t
atomic< size_t > atomic_size_t
atomic_size_t
Definition atomic:1234

std::atomic_long
atomic< long > atomic_long
atomic_long
Definition atomic:1123

std::atomic_uint_least8_t
atomic< uint_least8_t > atomic_uint_least8_t
atomic_uint_least8_t
Definition atomic:1181

std::atomic_short
atomic< short > atomic_short
atomic_short
Definition atomic:1111

std::atomic_uint_least16_t
atomic< uint_least16_t > atomic_uint_least16_t
atomic_uint_least16_t
Definition atomic:1187

std::atomic_uint16_t
atomic< uint16_t > atomic_uint16_t
atomic_uint16_t
Definition atomic:1162

std::atomic_uint64_t
atomic< uint64_t > atomic_uint64_t
atomic_uint64_t
Definition atomic:1174

std::atomic_int_least32_t
atomic< int_least32_t > atomic_int_least32_t
atomic_int_least32_t
Definition atomic:1190

std::atomic_uint8_t
atomic< uint8_t > atomic_uint8_t
atomic_uint8_t
Definition atomic:1156

std::atomic_wchar_t
atomic< wchar_t > atomic_wchar_t
atomic_wchar_t
Definition atomic:1135

std::atomic_uint
atomic< unsigned int > atomic_uint
atomic_uint
Definition atomic:1120

std::atomic_uint_least32_t
atomic< uint_least32_t > atomic_uint_least32_t
atomic_uint_least32_t
Definition atomic:1193

std::atomic_uint_fast64_t
atomic< uint_fast64_t > atomic_uint_fast64_t
atomic_uint_fast64_t
Definition atomic:1224

std::atomic_int_fast32_t
atomic< int_fast32_t > atomic_int_fast32_t
atomic_int_fast32_t
Definition atomic:1215

std::atomic_char
atomic< char > atomic_char
atomic_char
Definition atomic:1102

std::atomic_int
atomic< int > atomic_int
atomic_int
Definition atomic:1117

std::atomic_uint_least64_t
atomic< uint_least64_t > atomic_uint_least64_t
atomic_uint_least64_t
Definition atomic:1199

std::atomic_int64_t
atomic< int64_t > atomic_int64_t
atomic_int64_t
Definition atomic:1171

std::atomic_uintmax_t
atomic< uintmax_t > atomic_uintmax_t
atomic_uintmax_t
Definition atomic:1243

std::atomic_int_fast16_t
atomic< int_fast16_t > atomic_int_fast16_t
atomic_int_fast16_t
Definition atomic:1209

std::atomic_int32_t
atomic< int32_t > atomic_int32_t
atomic_int32_t
Definition atomic:1165

std::atomic_uint_fast16_t
atomic< uint_fast16_t > atomic_uint_fast16_t
atomic_uint_fast16_t
Definition atomic:1212

std::atomic_int8_t
atomic< int8_t > atomic_int8_t
atomic_int8_t
Definition atomic:1153

std::atomic_llong
atomic< long long > atomic_llong
atomic_llong
Definition atomic:1129

std::atomic_char16_t
atomic< char16_t > atomic_char16_t
atomic_char16_t
Definition atomic:1143

std::atomic_int_fast64_t
atomic< int_fast64_t > atomic_int_fast64_t
atomic_int_fast64_t
Definition atomic:1221

std::atomic_ptrdiff_t
atomic< ptrdiff_t > atomic_ptrdiff_t
atomic_ptrdiff_t
Definition atomic:1237

std::atomic_char32_t
atomic< char32_t > atomic_char32_t
atomic_char32_t
Definition atomic:1146

std::atomic_int_least16_t
atomic< int_least16_t > atomic_int_least16_t
atomic_int_least16_t
Definition atomic:1184

std::atomic_uchar
atomic< unsigned char > atomic_uchar
atomic_uchar
Definition atomic:1108

std::atomic_int_fast8_t
atomic< int_fast8_t > atomic_int_fast8_t
atomic_int_fast8_t
Definition atomic:1203

std::memory_order
memory_order
Enumeration for memory_order.
Definition atomic_base.h:66

std::atomic_ushort
atomic< unsigned short > atomic_ushort
atomic_ushort
Definition atomic:1114

std::atomic_int_least64_t
atomic< int_least64_t > atomic_int_least64_t
atomic_int_least64_t
Definition atomic:1196

std::atomic_bool
atomic< bool > atomic_bool
atomic_bool
Definition atomic:1099

std::atomic_uint_fast32_t
atomic< uint_fast32_t > atomic_uint_fast32_t
atomic_uint_fast32_t
Definition atomic:1218

std::atomic_uint32_t
atomic< uint32_t > atomic_uint32_t
atomic_uint32_t
Definition atomic:1168

std::atomic_flag
atomic_flag
Definition atomic_base.h:218