d7f2a09e98
This adds the C++23 <stdatomic.h> header, as proposed by P0943R6, for compatibility with C code. There are still some ABI differences between atomic_xxx in C and C++ std::atomic_xxx in C++, so this only provides source compatibility, not binary compatibility. libstdc++-v3/ChangeLog: * include/Makefile.am: Install new header. * include/Makefile.in: Regenerate. * include/c_compatibility/stdatomic.h: New file. * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc: New test.
125 lines
3.8 KiB
C++
125 lines
3.8 KiB
C++
// C compatibility header <stdatomic.h> -*- C++ -*-
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// Copyright (C) 2022 The GCC developers
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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/** @file include/stdatomic.h
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* This is a Standard C++ Library header.
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*/
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#ifndef _GLIBCXX_STDATOMIC_H
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#define _GLIBCXX_STDATOMIC_H
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#if __cplusplus > 202002L
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#include <atomic>
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#define _Atomic(_Tp) std::atomic<_Tp>
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using std::memory_order;
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using std::memory_order_relaxed;
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using std::memory_order_consume;
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using std::memory_order_acquire;
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using std::memory_order_release;
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using std::memory_order_acq_rel;
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using std::memory_order_seq_cst;
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using std::atomic_flag;
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using std::atomic_bool;
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using std::atomic_char;
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using std::atomic_schar;
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using std::atomic_uchar;
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using std::atomic_short;
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using std::atomic_ushort;
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using std::atomic_int;
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using std::atomic_uint;
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using std::atomic_long;
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using std::atomic_ulong;
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using std::atomic_llong;
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using std::atomic_ullong;
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#ifdef _GLIBCXX_USE_CHAR8_T
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using std::atomic_char8_t;
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#endif
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using std::atomic_char16_t;
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using std::atomic_char32_t;
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using std::atomic_wchar_t;
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#ifdef _GLIBCXX_USE_C99_STDINT_TR1
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using std::atomic_int8_t;
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using std::atomic_uint8_t;
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using std::atomic_int16_t;
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using std::atomic_uint16_t;
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using std::atomic_int32_t;
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using std::atomic_uint32_t;
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using std::atomic_int64_t;
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using std::atomic_uint64_t;
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using std::atomic_int_least8_t;
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using std::atomic_uint_least8_t;
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using std::atomic_int_least16_t;
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using std::atomic_uint_least16_t;
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using std::atomic_int_least32_t;
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using std::atomic_uint_least32_t;
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using std::atomic_int_least64_t;
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using std::atomic_uint_least64_t;
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using std::atomic_int_fast8_t;
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using std::atomic_uint_fast8_t;
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using std::atomic_int_fast16_t;
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using std::atomic_uint_fast16_t;
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using std::atomic_int_fast32_t;
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using std::atomic_uint_fast32_t;
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using std::atomic_int_fast64_t;
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using std::atomic_uint_fast64_t;
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#endif
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using std::atomic_intptr_t;
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using std::atomic_uintptr_t;
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using std::atomic_size_t;
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using std::atomic_ptrdiff_t;
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#ifdef _GLIBCXX_USE_C99_STDINT_TR1
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using std::atomic_intmax_t;
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using std::atomic_uintmax_t;
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#endif
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using std::atomic_is_lock_free;
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using std::atomic_load;
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using std::atomic_load_explicit;
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using std::atomic_store;
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using std::atomic_store_explicit;
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using std::atomic_exchange;
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using std::atomic_exchange_explicit;
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using std::atomic_compare_exchange_strong;
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using std::atomic_compare_exchange_strong_explicit;
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using std::atomic_compare_exchange_weak;
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using std::atomic_compare_exchange_weak_explicit;
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using std::atomic_fetch_add;
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using std::atomic_fetch_add_explicit;
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using std::atomic_fetch_sub;
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using std::atomic_fetch_sub_explicit;
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using std::atomic_fetch_or;
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using std::atomic_fetch_or_explicit;
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using std::atomic_fetch_and;
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using std::atomic_fetch_and_explicit;
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using std::atomic_flag_test_and_set;
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using std::atomic_flag_test_and_set_explicit;
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using std::atomic_flag_clear;
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using std::atomic_flag_clear_explicit;
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using std::atomic_thread_fence;
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using std::atomic_signal_fence;
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#endif // C++23
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#endif // _GLIBCXX_STDATOMIC_H
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