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Diffstat (limited to 'gcc-4.8.1/libstdc++-v3/include/bits/atomic_base.h')
| -rw-r--r-- | gcc-4.8.1/libstdc++-v3/include/bits/atomic_base.h | 888 |
1 files changed, 0 insertions, 888 deletions
diff --git a/gcc-4.8.1/libstdc++-v3/include/bits/atomic_base.h b/gcc-4.8.1/libstdc++-v3/include/bits/atomic_base.h deleted file mode 100644 index 609fe8b06..000000000 --- a/gcc-4.8.1/libstdc++-v3/include/bits/atomic_base.h +++ /dev/null @@ -1,888 +0,0 @@ -// -*- C++ -*- header. - -// Copyright (C) 2008-2013 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; - - enum __memory_order_modifier - { - __memory_order_mask = 0x0ffff, - __memory_order_modifier_mask = 0xffff0000, - __memory_order_hle_acquire = 0x10000, - __memory_order_hle_release = 0x20000 - }; - - constexpr memory_order - operator|(memory_order __m, __memory_order_modifier __mod) - { - return memory_order(__m | int(__mod)); - } - - constexpr memory_order - operator&(memory_order __m, __memory_order_modifier __mod) - { - return memory_order(__m & int(__mod)); - } - - // Drop release ordering as per [atomics.types.operations.req]/21 - constexpr memory_order - __cmpexch_failure_order2(memory_order __m) noexcept - { - return __m == memory_order_acq_rel ? memory_order_acquire - : __m == memory_order_release ? memory_order_relaxed : __m; - } - - constexpr memory_order - __cmpexch_failure_order(memory_order __m) noexcept - { - return memory_order(__cmpexch_failure_order2(__m & __memory_order_mask) - | (__m & __memory_order_modifier_mask)); - } - - inline void - atomic_thread_fence(memory_order __m) noexcept - { __atomic_thread_fence(__m); } - - inline void - atomic_signal_fence(memory_order __m) noexcept - { __atomic_signal_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*>; - - /* The target's "set" value for test-and-set may not be exactly 1. */ -#if __GCC_ATOMIC_TEST_AND_SET_TRUEVAL == 1 - typedef bool __atomic_flag_data_type; -#else - typedef unsigned char __atomic_flag_data_type; -#endif - - /** - * @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 - { - __atomic_flag_data_type _M_i; - }; - - _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{ _S_init(__i) } - { } - - 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 - { - memory_order __b = __m & __memory_order_mask; - __glibcxx_assert(__b != memory_order_consume); - __glibcxx_assert(__b != memory_order_acquire); - __glibcxx_assert(__b != memory_order_acq_rel); - - __atomic_clear (&_M_i, __m); - } - - void - clear(memory_order __m = memory_order_seq_cst) volatile noexcept - { - memory_order __b = __m & __memory_order_mask; - __glibcxx_assert(__b != memory_order_consume); - __glibcxx_assert(__b != memory_order_acquire); - __glibcxx_assert(__b != memory_order_acq_rel); - - __atomic_clear (&_M_i, __m); - } - - private: - static constexpr __atomic_flag_data_type - _S_init(bool __i) - { return __i ? __GCC_ATOMIC_TEST_AND_SET_TRUEVAL : 0; } - }; - - - /// 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), nullptr); } - - bool - is_lock_free() const volatile noexcept - { return __atomic_is_lock_free(sizeof(_M_i), nullptr); } - - void - store(__int_type __i, memory_order __m = memory_order_seq_cst) noexcept - { - memory_order __b = __m & __memory_order_mask; - __glibcxx_assert(__b != memory_order_acquire); - __glibcxx_assert(__b != memory_order_acq_rel); - __glibcxx_assert(__b != memory_order_consume); - - __atomic_store_n(&_M_i, __i, __m); - } - - void - store(__int_type __i, - memory_order __m = memory_order_seq_cst) volatile noexcept - { - memory_order __b = __m & __memory_order_mask; - __glibcxx_assert(__b != memory_order_acquire); - __glibcxx_assert(__b != memory_order_acq_rel); - __glibcxx_assert(__b != memory_order_consume); - - __atomic_store_n(&_M_i, __i, __m); - } - - __int_type - load(memory_order __m = memory_order_seq_cst) const noexcept - { - memory_order __b = __m & __memory_order_mask; - __glibcxx_assert(__b != memory_order_release); - __glibcxx_assert(__b != memory_order_acq_rel); - - return __atomic_load_n(&_M_i, __m); - } - - __int_type - load(memory_order __m = memory_order_seq_cst) const volatile noexcept - { - memory_order __b = __m & __memory_order_mask; - __glibcxx_assert(__b != memory_order_release); - __glibcxx_assert(__b != 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 - { - memory_order __b2 = __m2 & __memory_order_mask; - memory_order __b1 = __m1 & __memory_order_mask; - __glibcxx_assert(__b2 != memory_order_release); - __glibcxx_assert(__b2 != memory_order_acq_rel); - __glibcxx_assert(__b2 <= __b1); - - 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 - { - memory_order __b2 = __m2 & __memory_order_mask; - memory_order __b1 = __m1 & __memory_order_mask; - __glibcxx_assert(__b2 != memory_order_release); - __glibcxx_assert(__b2 != memory_order_acq_rel); - __glibcxx_assert(__b2 <= __b1); - - 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 - { - memory_order __b2 = __m2 & __memory_order_mask; - memory_order __b1 = __m1 & __memory_order_mask; - __glibcxx_assert(__b2 != memory_order_release); - __glibcxx_assert(__b2 != memory_order_acq_rel); - __glibcxx_assert(__b2 <= __b1); - - 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 - { - memory_order __b2 = __m2 & __memory_order_mask; - memory_order __b1 = __m1 & __memory_order_mask; - - __glibcxx_assert(__b2 != memory_order_release); - __glibcxx_assert(__b2 != memory_order_acq_rel); - __glibcxx_assert(__b2 <= __b1); - - 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), nullptr); } - - bool - is_lock_free() const volatile noexcept - { return __atomic_is_lock_free(_M_type_size(1), nullptr); } - - void - store(__pointer_type __p, - memory_order __m = memory_order_seq_cst) noexcept - { - memory_order __b = __m & __memory_order_mask; - - __glibcxx_assert(__b != memory_order_acquire); - __glibcxx_assert(__b != memory_order_acq_rel); - __glibcxx_assert(__b != memory_order_consume); - - __atomic_store_n(&_M_p, __p, __m); - } - - void - store(__pointer_type __p, - memory_order __m = memory_order_seq_cst) volatile noexcept - { - memory_order __b = __m & __memory_order_mask; - __glibcxx_assert(__b != memory_order_acquire); - __glibcxx_assert(__b != memory_order_acq_rel); - __glibcxx_assert(__b != memory_order_consume); - - __atomic_store_n(&_M_p, __p, __m); - } - - __pointer_type - load(memory_order __m = memory_order_seq_cst) const noexcept - { - memory_order __b = __m & __memory_order_mask; - __glibcxx_assert(__b != memory_order_release); - __glibcxx_assert(__b != memory_order_acq_rel); - - return __atomic_load_n(&_M_p, __m); - } - - __pointer_type - load(memory_order __m = memory_order_seq_cst) const volatile noexcept - { - memory_order __b = __m & __memory_order_mask; - __glibcxx_assert(__b != memory_order_release); - __glibcxx_assert(__b != 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 - { - memory_order __b2 = __m2 & __memory_order_mask; - memory_order __b1 = __m1 & __memory_order_mask; - __glibcxx_assert(__b2 != memory_order_release); - __glibcxx_assert(__b2 != memory_order_acq_rel); - __glibcxx_assert(__b2 <= __b1); - - 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 - { - memory_order __b2 = __m2 & __memory_order_mask; - memory_order __b1 = __m1 & __memory_order_mask; - - __glibcxx_assert(__b2 != memory_order_release); - __glibcxx_assert(__b2 != memory_order_acq_rel); - __glibcxx_assert(__b2 <= __b1); - - 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 |