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Diffstat (limited to '8/sources/cxx-stl/gnu-libstdc++/4.7/include/bits/atomic_base.h')
| -rw-r--r-- | 8/sources/cxx-stl/gnu-libstdc++/4.7/include/bits/atomic_base.h | 830 |
1 files changed, 830 insertions, 0 deletions
diff --git a/8/sources/cxx-stl/gnu-libstdc++/4.7/include/bits/atomic_base.h b/8/sources/cxx-stl/gnu-libstdc++/4.7/include/bits/atomic_base.h new file mode 100644 index 0000000..9d5f4eb --- /dev/null +++ b/8/sources/cxx-stl/gnu-libstdc++/4.7/include/bits/atomic_base.h @@ -0,0 +1,830 @@ +// -*- C++ -*- header. + +// Copyright (C) 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc. +// +// 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 bits/atomic_base.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{atomic} + */ + +#ifndef _GLIBCXX_ATOMIC_BASE_H +#define _GLIBCXX_ATOMIC_BASE_H 1 + +#pragma GCC system_header + +#include <bits/c++config.h> +#include <stdbool.h> +#include <stdint.h> +#include <bits/atomic_lockfree_defines.h> + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @defgroup atomics Atomics + * + * Components for performing atomic operations. + * @{ + */ + + /// Enumeration for memory_order + typedef enum memory_order + { + memory_order_relaxed, + memory_order_consume, + memory_order_acquire, + memory_order_release, + memory_order_acq_rel, + memory_order_seq_cst + } memory_order; + + // Drop release ordering as per [atomics.types.operations.req]/21 + constexpr memory_order + __cmpexch_failure_order(memory_order __m) noexcept + { + return __m == memory_order_acq_rel ? memory_order_acquire + : __m == memory_order_release ? memory_order_relaxed : __m; + } + + inline void + atomic_thread_fence(memory_order __m) noexcept + { __atomic_thread_fence(__m); } + + inline void + atomic_signal_fence(memory_order __m) noexcept + { __atomic_thread_fence(__m); } + + /// kill_dependency + template<typename _Tp> + inline _Tp + kill_dependency(_Tp __y) noexcept + { + _Tp __ret(__y); + return __ret; + } + + + // Base types for atomics. + template<typename _IntTp> + struct __atomic_base; + + /// atomic_char + typedef __atomic_base<char> atomic_char; + + /// atomic_schar + typedef __atomic_base<signed char> atomic_schar; + + /// atomic_uchar + typedef __atomic_base<unsigned char> atomic_uchar; + + /// atomic_short + typedef __atomic_base<short> atomic_short; + + /// atomic_ushort + typedef __atomic_base<unsigned short> atomic_ushort; + + /// atomic_int + typedef __atomic_base<int> atomic_int; + + /// atomic_uint + typedef __atomic_base<unsigned int> atomic_uint; + + /// atomic_long + typedef __atomic_base<long> atomic_long; + + /// atomic_ulong + typedef __atomic_base<unsigned long> atomic_ulong; + + /// atomic_llong + typedef __atomic_base<long long> atomic_llong; + + /// atomic_ullong + typedef __atomic_base<unsigned long long> atomic_ullong; + + /// atomic_wchar_t + typedef __atomic_base<wchar_t> atomic_wchar_t; + + /// atomic_char16_t + typedef __atomic_base<char16_t> atomic_char16_t; + + /// atomic_char32_t + typedef __atomic_base<char32_t> atomic_char32_t; + + /// atomic_char32_t + typedef __atomic_base<char32_t> atomic_char32_t; + + + /// atomic_int_least8_t + typedef __atomic_base<int_least8_t> atomic_int_least8_t; + + /// atomic_uint_least8_t + typedef __atomic_base<uint_least8_t> atomic_uint_least8_t; + + /// atomic_int_least16_t + typedef __atomic_base<int_least16_t> atomic_int_least16_t; + + /// atomic_uint_least16_t + typedef __atomic_base<uint_least16_t> atomic_uint_least16_t; + + /// atomic_int_least32_t + typedef __atomic_base<int_least32_t> atomic_int_least32_t; + + /// atomic_uint_least32_t + typedef __atomic_base<uint_least32_t> atomic_uint_least32_t; + + /// atomic_int_least64_t + typedef __atomic_base<int_least64_t> atomic_int_least64_t; + + /// atomic_uint_least64_t + typedef __atomic_base<uint_least64_t> atomic_uint_least64_t; + + + /// atomic_int_fast8_t + typedef __atomic_base<int_fast8_t> atomic_int_fast8_t; + + /// atomic_uint_fast8_t + typedef __atomic_base<uint_fast8_t> atomic_uint_fast8_t; + + /// atomic_int_fast16_t + typedef __atomic_base<int_fast16_t> atomic_int_fast16_t; + + /// atomic_uint_fast16_t + typedef __atomic_base<uint_fast16_t> atomic_uint_fast16_t; + + /// atomic_int_fast32_t + typedef __atomic_base<int_fast32_t> atomic_int_fast32_t; + + /// atomic_uint_fast32_t + typedef __atomic_base<uint_fast32_t> atomic_uint_fast32_t; + + /// atomic_int_fast64_t + typedef __atomic_base<int_fast64_t> atomic_int_fast64_t; + + /// atomic_uint_fast64_t + typedef __atomic_base<uint_fast64_t> atomic_uint_fast64_t; + + + /// atomic_intptr_t + typedef __atomic_base<intptr_t> atomic_intptr_t; + + /// atomic_uintptr_t + typedef __atomic_base<uintptr_t> atomic_uintptr_t; + + /// atomic_size_t + typedef __atomic_base<size_t> atomic_size_t; + + /// atomic_intmax_t + typedef __atomic_base<intmax_t> atomic_intmax_t; + + /// atomic_uintmax_t + typedef __atomic_base<uintmax_t> atomic_uintmax_t; + + /// atomic_ptrdiff_t + typedef __atomic_base<ptrdiff_t> atomic_ptrdiff_t; + + +#define ATOMIC_VAR_INIT(_VI) { _VI } + + template<typename _Tp> + struct atomic; + + template<typename _Tp> + struct atomic<_Tp*>; + + + /** + * @brief Base type for atomic_flag. + * + * Base type is POD with data, allowing atomic_flag to derive from + * it and meet the standard layout type requirement. In addition to + * compatibilty with a C interface, this allows different + * implementations of atomic_flag to use the same atomic operation + * functions, via a standard conversion to the __atomic_flag_base + * argument. + */ + _GLIBCXX_BEGIN_EXTERN_C + + struct __atomic_flag_base + { + /* The target's "set" value for test-and-set may not be exactly 1. */ +#if __GCC_ATOMIC_TEST_AND_SET_TRUEVAL == 1 + bool _M_i; +#else + unsigned char _M_i; +#endif + }; + + _GLIBCXX_END_EXTERN_C + +#define ATOMIC_FLAG_INIT { 0 } + + /// atomic_flag + struct atomic_flag : public __atomic_flag_base + { + atomic_flag() noexcept = default; + ~atomic_flag() noexcept = default; + atomic_flag(const atomic_flag&) = delete; + atomic_flag& operator=(const atomic_flag&) = delete; + atomic_flag& operator=(const atomic_flag&) volatile = delete; + + // Conversion to ATOMIC_FLAG_INIT. + constexpr atomic_flag(bool __i) noexcept + : __atomic_flag_base({ __i ? __GCC_ATOMIC_TEST_AND_SET_TRUEVAL : 0 }) + { } + + bool + test_and_set(memory_order __m = memory_order_seq_cst) noexcept + { + return __atomic_test_and_set (&_M_i, __m); + } + + bool + test_and_set(memory_order __m = memory_order_seq_cst) volatile noexcept + { + return __atomic_test_and_set (&_M_i, __m); + } + + void + clear(memory_order __m = memory_order_seq_cst) noexcept + { + __glibcxx_assert(__m != memory_order_consume); + __glibcxx_assert(__m != memory_order_acquire); + __glibcxx_assert(__m != memory_order_acq_rel); + + __atomic_clear (&_M_i, __m); + } + + void + clear(memory_order __m = memory_order_seq_cst) volatile noexcept + { + __glibcxx_assert(__m != memory_order_consume); + __glibcxx_assert(__m != memory_order_acquire); + __glibcxx_assert(__m != memory_order_acq_rel); + + __atomic_clear (&_M_i, __m); + } + }; + + + /// Base class for atomic integrals. + // + // For each of the integral types, define atomic_[integral type] struct + // + // atomic_bool bool + // atomic_char char + // atomic_schar signed char + // atomic_uchar unsigned char + // atomic_short short + // atomic_ushort unsigned short + // atomic_int int + // atomic_uint unsigned int + // atomic_long long + // atomic_ulong unsigned long + // atomic_llong long long + // atomic_ullong unsigned long long + // atomic_char16_t char16_t + // atomic_char32_t char32_t + // atomic_wchar_t wchar_t + // + // NB: Assuming _ITp is an integral scalar type that is 1, 2, 4, or + // 8 bytes, since that is what GCC built-in functions for atomic + // memory access expect. + template<typename _ITp> + struct __atomic_base + { + private: + typedef _ITp __int_type; + + __int_type _M_i; + + public: + __atomic_base() noexcept = default; + ~__atomic_base() noexcept = default; + __atomic_base(const __atomic_base&) = delete; + __atomic_base& operator=(const __atomic_base&) = delete; + __atomic_base& operator=(const __atomic_base&) volatile = delete; + + // Requires __int_type convertible to _M_i. + constexpr __atomic_base(__int_type __i) noexcept : _M_i (__i) { } + + operator __int_type() const noexcept + { return load(); } + + operator __int_type() const volatile noexcept + { return load(); } + + __int_type + operator=(__int_type __i) noexcept + { + store(__i); + return __i; + } + + __int_type + operator=(__int_type __i) volatile noexcept + { + store(__i); + return __i; + } + + __int_type + operator++(int) noexcept + { return fetch_add(1); } + + __int_type + operator++(int) volatile noexcept + { return fetch_add(1); } + + __int_type + operator--(int) noexcept + { return fetch_sub(1); } + + __int_type + operator--(int) volatile noexcept + { return fetch_sub(1); } + + __int_type + operator++() noexcept + { return __atomic_add_fetch(&_M_i, 1, memory_order_seq_cst); } + + __int_type + operator++() volatile noexcept + { return __atomic_add_fetch(&_M_i, 1, memory_order_seq_cst); } + + __int_type + operator--() noexcept + { return __atomic_sub_fetch(&_M_i, 1, memory_order_seq_cst); } + + __int_type + operator--() volatile noexcept + { return __atomic_sub_fetch(&_M_i, 1, memory_order_seq_cst); } + + __int_type + operator+=(__int_type __i) noexcept + { return __atomic_add_fetch(&_M_i, __i, memory_order_seq_cst); } + + __int_type + operator+=(__int_type __i) volatile noexcept + { return __atomic_add_fetch(&_M_i, __i, memory_order_seq_cst); } + + __int_type + operator-=(__int_type __i) noexcept + { return __atomic_sub_fetch(&_M_i, __i, memory_order_seq_cst); } + + __int_type + operator-=(__int_type __i) volatile noexcept + { return __atomic_sub_fetch(&_M_i, __i, memory_order_seq_cst); } + + __int_type + operator&=(__int_type __i) noexcept + { return __atomic_and_fetch(&_M_i, __i, memory_order_seq_cst); } + + __int_type + operator&=(__int_type __i) volatile noexcept + { return __atomic_and_fetch(&_M_i, __i, memory_order_seq_cst); } + + __int_type + operator|=(__int_type __i) noexcept + { return __atomic_or_fetch(&_M_i, __i, memory_order_seq_cst); } + + __int_type + operator|=(__int_type __i) volatile noexcept + { return __atomic_or_fetch(&_M_i, __i, memory_order_seq_cst); } + + __int_type + operator^=(__int_type __i) noexcept + { return __atomic_xor_fetch(&_M_i, __i, memory_order_seq_cst); } + + __int_type + operator^=(__int_type __i) volatile noexcept + { return __atomic_xor_fetch(&_M_i, __i, memory_order_seq_cst); } + + bool + is_lock_free() const noexcept + { return __atomic_is_lock_free (sizeof (_M_i), &_M_i); } + + bool + is_lock_free() const volatile noexcept + { return __atomic_is_lock_free (sizeof (_M_i), &_M_i); } + + void + store(__int_type __i, memory_order __m = memory_order_seq_cst) noexcept + { + __glibcxx_assert(__m != memory_order_acquire); + __glibcxx_assert(__m != memory_order_acq_rel); + __glibcxx_assert(__m != memory_order_consume); + + __atomic_store_n(&_M_i, __i, __m); + } + + void + store(__int_type __i, + memory_order __m = memory_order_seq_cst) volatile noexcept + { + __glibcxx_assert(__m != memory_order_acquire); + __glibcxx_assert(__m != memory_order_acq_rel); + __glibcxx_assert(__m != memory_order_consume); + + __atomic_store_n(&_M_i, __i, __m); + } + + __int_type + load(memory_order __m = memory_order_seq_cst) const noexcept + { + __glibcxx_assert(__m != memory_order_release); + __glibcxx_assert(__m != memory_order_acq_rel); + + return __atomic_load_n(&_M_i, __m); + } + + __int_type + load(memory_order __m = memory_order_seq_cst) const volatile noexcept + { + __glibcxx_assert(__m != memory_order_release); + __glibcxx_assert(__m != memory_order_acq_rel); + + return __atomic_load_n(&_M_i, __m); + } + + __int_type + exchange(__int_type __i, + memory_order __m = memory_order_seq_cst) noexcept + { + return __atomic_exchange_n(&_M_i, __i, __m); + } + + + __int_type + exchange(__int_type __i, + memory_order __m = memory_order_seq_cst) volatile noexcept + { + return __atomic_exchange_n(&_M_i, __i, __m); + } + + bool + compare_exchange_weak(__int_type& __i1, __int_type __i2, + memory_order __m1, memory_order __m2) noexcept + { + __glibcxx_assert(__m2 != memory_order_release); + __glibcxx_assert(__m2 != memory_order_acq_rel); + __glibcxx_assert(__m2 <= __m1); + + return __atomic_compare_exchange_n(&_M_i, &__i1, __i2, 1, __m1, __m2); + } + + bool + compare_exchange_weak(__int_type& __i1, __int_type __i2, + memory_order __m1, + memory_order __m2) volatile noexcept + { + __glibcxx_assert(__m2 != memory_order_release); + __glibcxx_assert(__m2 != memory_order_acq_rel); + __glibcxx_assert(__m2 <= __m1); + + return __atomic_compare_exchange_n(&_M_i, &__i1, __i2, 1, __m1, __m2); + } + + bool + compare_exchange_weak(__int_type& __i1, __int_type __i2, + memory_order __m = memory_order_seq_cst) noexcept + { + return compare_exchange_weak(__i1, __i2, __m, + __cmpexch_failure_order(__m)); + } + + bool + compare_exchange_weak(__int_type& __i1, __int_type __i2, + memory_order __m = memory_order_seq_cst) volatile noexcept + { + return compare_exchange_weak(__i1, __i2, __m, + __cmpexch_failure_order(__m)); + } + + bool + compare_exchange_strong(__int_type& __i1, __int_type __i2, + memory_order __m1, memory_order __m2) noexcept + { + __glibcxx_assert(__m2 != memory_order_release); + __glibcxx_assert(__m2 != memory_order_acq_rel); + __glibcxx_assert(__m2 <= __m1); + + return __atomic_compare_exchange_n(&_M_i, &__i1, __i2, 0, __m1, __m2); + } + + bool + compare_exchange_strong(__int_type& __i1, __int_type __i2, + memory_order __m1, + memory_order __m2) volatile noexcept + { + __glibcxx_assert(__m2 != memory_order_release); + __glibcxx_assert(__m2 != memory_order_acq_rel); + __glibcxx_assert(__m2 <= __m1); + + return __atomic_compare_exchange_n(&_M_i, &__i1, __i2, 0, __m1, __m2); + } + + bool + compare_exchange_strong(__int_type& __i1, __int_type __i2, + memory_order __m = memory_order_seq_cst) noexcept + { + return compare_exchange_strong(__i1, __i2, __m, + __cmpexch_failure_order(__m)); + } + + bool + compare_exchange_strong(__int_type& __i1, __int_type __i2, + memory_order __m = memory_order_seq_cst) volatile noexcept + { + return compare_exchange_strong(__i1, __i2, __m, + __cmpexch_failure_order(__m)); + } + + __int_type + fetch_add(__int_type __i, + memory_order __m = memory_order_seq_cst) noexcept + { return __atomic_fetch_add(&_M_i, __i, __m); } + + __int_type + fetch_add(__int_type __i, + memory_order __m = memory_order_seq_cst) volatile noexcept + { return __atomic_fetch_add(&_M_i, __i, __m); } + + __int_type + fetch_sub(__int_type __i, + memory_order __m = memory_order_seq_cst) noexcept + { return __atomic_fetch_sub(&_M_i, __i, __m); } + + __int_type + fetch_sub(__int_type __i, + memory_order __m = memory_order_seq_cst) volatile noexcept + { return __atomic_fetch_sub(&_M_i, __i, __m); } + + __int_type + fetch_and(__int_type __i, + memory_order __m = memory_order_seq_cst) noexcept + { return __atomic_fetch_and(&_M_i, __i, __m); } + + __int_type + fetch_and(__int_type __i, + memory_order __m = memory_order_seq_cst) volatile noexcept + { return __atomic_fetch_and(&_M_i, __i, __m); } + + __int_type + fetch_or(__int_type __i, + memory_order __m = memory_order_seq_cst) noexcept + { return __atomic_fetch_or(&_M_i, __i, __m); } + + __int_type + fetch_or(__int_type __i, + memory_order __m = memory_order_seq_cst) volatile noexcept + { return __atomic_fetch_or(&_M_i, __i, __m); } + + __int_type + fetch_xor(__int_type __i, + memory_order __m = memory_order_seq_cst) noexcept + { return __atomic_fetch_xor(&_M_i, __i, __m); } + + __int_type + fetch_xor(__int_type __i, + memory_order __m = memory_order_seq_cst) volatile noexcept + { return __atomic_fetch_xor(&_M_i, __i, __m); } + }; + + + /// Partial specialization for pointer types. + template<typename _PTp> + struct __atomic_base<_PTp*> + { + private: + typedef _PTp* __pointer_type; + + __pointer_type _M_p; + + // Factored out to facilitate explicit specialization. + constexpr ptrdiff_t + _M_type_size(ptrdiff_t __d) { return __d * sizeof(_PTp); } + + constexpr ptrdiff_t + _M_type_size(ptrdiff_t __d) volatile { return __d * sizeof(_PTp); } + + public: + __atomic_base() noexcept = default; + ~__atomic_base() noexcept = default; + __atomic_base(const __atomic_base&) = delete; + __atomic_base& operator=(const __atomic_base&) = delete; + __atomic_base& operator=(const __atomic_base&) volatile = delete; + + // Requires __pointer_type convertible to _M_p. + constexpr __atomic_base(__pointer_type __p) noexcept : _M_p (__p) { } + + operator __pointer_type() const noexcept + { return load(); } + + operator __pointer_type() const volatile noexcept + { return load(); } + + __pointer_type + operator=(__pointer_type __p) noexcept + { + store(__p); + return __p; + } + + __pointer_type + operator=(__pointer_type __p) volatile noexcept + { + store(__p); + return __p; + } + + __pointer_type + operator++(int) noexcept + { return fetch_add(1); } + + __pointer_type + operator++(int) volatile noexcept + { return fetch_add(1); } + + __pointer_type + operator--(int) noexcept + { return fetch_sub(1); } + + __pointer_type + operator--(int) volatile noexcept + { return fetch_sub(1); } + + __pointer_type + operator++() noexcept + { return __atomic_add_fetch(&_M_p, _M_type_size(1), + memory_order_seq_cst); } + + __pointer_type + operator++() volatile noexcept + { return __atomic_add_fetch(&_M_p, _M_type_size(1), + memory_order_seq_cst); } + + __pointer_type + operator--() noexcept + { return __atomic_sub_fetch(&_M_p, _M_type_size(1), + memory_order_seq_cst); } + + __pointer_type + operator--() volatile noexcept + { return __atomic_sub_fetch(&_M_p, _M_type_size(1), + memory_order_seq_cst); } + + __pointer_type + operator+=(ptrdiff_t __d) noexcept + { return __atomic_add_fetch(&_M_p, _M_type_size(__d), + memory_order_seq_cst); } + + __pointer_type + operator+=(ptrdiff_t __d) volatile noexcept + { return __atomic_add_fetch(&_M_p, _M_type_size(__d), + memory_order_seq_cst); } + + __pointer_type + operator-=(ptrdiff_t __d) noexcept + { return __atomic_sub_fetch(&_M_p, _M_type_size(__d), + memory_order_seq_cst); } + + __pointer_type + operator-=(ptrdiff_t __d) volatile noexcept + { return __atomic_sub_fetch(&_M_p, _M_type_size(__d), + memory_order_seq_cst); } + + bool + is_lock_free() const noexcept + { return __atomic_is_lock_free(_M_type_size(1), &_M_p); } + + bool + is_lock_free() const volatile noexcept + { return __atomic_is_lock_free(_M_type_size(1), &_M_p); } + + void + store(__pointer_type __p, + memory_order __m = memory_order_seq_cst) noexcept + { + __glibcxx_assert(__m != memory_order_acquire); + __glibcxx_assert(__m != memory_order_acq_rel); + __glibcxx_assert(__m != memory_order_consume); + + __atomic_store_n(&_M_p, __p, __m); + } + + void + store(__pointer_type __p, + memory_order __m = memory_order_seq_cst) volatile noexcept + { + __glibcxx_assert(__m != memory_order_acquire); + __glibcxx_assert(__m != memory_order_acq_rel); + __glibcxx_assert(__m != memory_order_consume); + + __atomic_store_n(&_M_p, __p, __m); + } + + __pointer_type + load(memory_order __m = memory_order_seq_cst) const noexcept + { + __glibcxx_assert(__m != memory_order_release); + __glibcxx_assert(__m != memory_order_acq_rel); + + return __atomic_load_n(&_M_p, __m); + } + + __pointer_type + load(memory_order __m = memory_order_seq_cst) const volatile noexcept + { + __glibcxx_assert(__m != memory_order_release); + __glibcxx_assert(__m != memory_order_acq_rel); + + return __atomic_load_n(&_M_p, __m); + } + + __pointer_type + exchange(__pointer_type __p, + memory_order __m = memory_order_seq_cst) noexcept + { + return __atomic_exchange_n(&_M_p, __p, __m); + } + + + __pointer_type + exchange(__pointer_type __p, + memory_order __m = memory_order_seq_cst) volatile noexcept + { + return __atomic_exchange_n(&_M_p, __p, __m); + } + + bool + compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2, + memory_order __m1, + memory_order __m2) noexcept + { + __glibcxx_assert(__m2 != memory_order_release); + __glibcxx_assert(__m2 != memory_order_acq_rel); + __glibcxx_assert(__m2 <= __m1); + + return __atomic_compare_exchange_n(&_M_p, &__p1, __p2, 0, __m1, __m2); + } + + bool + compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2, + memory_order __m1, + memory_order __m2) volatile noexcept + { + __glibcxx_assert(__m2 != memory_order_release); + __glibcxx_assert(__m2 != memory_order_acq_rel); + __glibcxx_assert(__m2 <= __m1); + + return __atomic_compare_exchange_n(&_M_p, &__p1, __p2, 0, __m1, __m2); + } + + __pointer_type + fetch_add(ptrdiff_t __d, + memory_order __m = memory_order_seq_cst) noexcept + { return __atomic_fetch_add(&_M_p, _M_type_size(__d), __m); } + + __pointer_type + fetch_add(ptrdiff_t __d, + memory_order __m = memory_order_seq_cst) volatile noexcept + { return __atomic_fetch_add(&_M_p, _M_type_size(__d), __m); } + + __pointer_type + fetch_sub(ptrdiff_t __d, + memory_order __m = memory_order_seq_cst) noexcept + { return __atomic_fetch_sub(&_M_p, _M_type_size(__d), __m); } + + __pointer_type + fetch_sub(ptrdiff_t __d, + memory_order __m = memory_order_seq_cst) volatile noexcept + { return __atomic_fetch_sub(&_M_p, _M_type_size(__d), __m); } + }; + + // @} group atomics + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif |