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PATH: usr / include / c++ / 4.8.2 / x86_64-redhat-linux / bits

// Low-level type for atomic operations -*- C++ -*-

// Copyright (C) 2004-2013 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 atomic_word.h
 *  This file is a GNU extension to the Standard C++ Library.
 */

#ifndef _GLIBCXX_ATOMIC_WORD_H
#define _GLIBCXX_ATOMIC_WORD_H	1

typedef int _Atomic_word;

// Define these two macros using the appropriate memory barrier for the target.
// The commented out versions below are the defaults.
// See ia64/atomic_word.h for an alternative approach.

// This one prevents loads from being hoisted across the barrier;
// in other words, this is a Load-Load acquire barrier.
// This is necessary iff TARGET_RELAXED_ORDERING is defined in tm.h.  
// #define _GLIBCXX_READ_MEM_BARRIER __asm __volatile ("":::"memory")

// This one prevents stores from being sunk across the barrier; in other
// words, a Store-Store release barrier.
// #define _GLIBCXX_WRITE_MEM_BARRIER __asm __volatile ("":::"memory")

#endif

[-] ctype_base.h [edit]
[+] ..
[-] atomic_word.h [edit]
[-] messages_members.h [edit]
[-] opt_random.h [edit]
[-] time_members.h [edit]
[-] c++config.h [edit]
[-] gthr-single.h [edit]
[-] ctype_inline.h [edit]
[-] stdtr1c++.h [edit]
[-] error_constants.h [edit]
[-] stdc++.h [edit]
[-] basic_file.h [edit]
[-] extc++.h [edit]
[-] c++io.h [edit]
[-] c++locale.h [edit]
[-] gthr-default.h [edit]
[-] cpu_defines.h [edit]
[-] cxxabi_tweaks.h [edit]
[-] os_defines.h [edit]
[-] gthr.h [edit]
[-] c++allocator.h [edit]
[-] gthr-posix.h [edit]