FM / ext

/usr/include/c++/4.4.4/ext/

/usr/include/c++/4.4.4/ext

Name	Size	Mode	Actions
pb_ds/	-	0755	rm
algorithm	17275	0644	edit dl rm
array_allocator.h	4533	0644	edit dl rm
atomicity.h	3419	0644	edit dl rm
bitmap_allocator.h	31849	0644	edit dl rm
cast.h	4189	0644	edit dl rm
codecvt_specializations.h	16200	0644	edit dl rm
concurrence.h	7127	0644	edit dl rm
debug_allocator.h	4048	0644	edit dl rm
enc_filebuf.h	2195	0644	edit dl rm
extptr_allocator.h	5579	0644	edit dl rm
functional	14260	0644	edit dl rm
hash_map	17621	0644	edit dl rm
hash_set	17041	0644	edit dl rm
iterator	3979	0644	edit dl rm
malloc_allocator.h	3965	0644	edit dl rm
memory	7124	0644	edit dl rm
mt_allocator.h	22457	0644	edit dl rm
new_allocator.h	3839	0644	edit dl rm
numeric	4605	0644	edit dl rm
numeric_traits.h	4506	0644	edit dl rm
pod_char_traits.h	5088	0644	edit dl rm
pointer.h	18630	0644	edit dl rm
pool_allocator.h	7910	0644	edit dl rm
rb_tree	3259	0644	edit dl rm
rc_string_base.h	23426	0644	edit dl rm
rope	87343	0644	edit dl rm
ropeimpl.h	48344	0644	edit dl rm
slist	29495	0644	edit dl rm
sso_string_base.h	16130	0644	edit dl rm
stdio_filebuf.h	5318	0644	edit dl rm
stdio_sync_filebuf.h	7643	0644	edit dl rm
string_conversions.h	2947	0644	edit dl rm
throw_allocator.h	11360	0644	edit dl rm
typelist.h	15348	0644	edit dl rm
type_traits.h	5370	0644	edit dl rm
vstring.h	97771	0644	edit dl rm
vstring.tcc	23410	0644	edit dl rm
vstring_fwd.h	3216	0644	edit dl rm
vstring_util.h	5802	0644	edit dl rm

Edit: /usr/include/c++/4.4.4/ext/atomicity.h (3419B)

// Support for atomic operations -*- C++ -*-

// Copyright (C) 2004, 2005, 2006, 2008, 2009 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 atomicity.h
 *  This is an internal header file, included by other library headers.
 *  You should not attempt to use it directly.
 */

#ifndef _GLIBCXX_ATOMICITY_H
#define _GLIBCXX_ATOMICITY_H	1

#include <bits/c++config.h>
#include <bits/gthr.h>
#include <bits/atomic_word.h>

_GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx)

// Functions for portable atomic access.
  // To abstract locking primitives across all thread policies, use:
  // __exchange_and_add_dispatch
  // __atomic_add_dispatch
#ifdef _GLIBCXX_ATOMIC_BUILTINS_4
  static inline _Atomic_word 
  __exchange_and_add(volatile _Atomic_word* __mem, int __val)
  { return __sync_fetch_and_add(__mem, __val); }

static inline void
  __atomic_add(volatile _Atomic_word* __mem, int __val)
  { __sync_fetch_and_add(__mem, __val); }
#else
  _Atomic_word
  __attribute__ ((__unused__))
  __exchange_and_add(volatile _Atomic_word*, int);

void
  __attribute__ ((__unused__))
  __atomic_add(volatile _Atomic_word*, int);
#endif

static inline _Atomic_word
  __exchange_and_add_single(_Atomic_word* __mem, int __val)
  {
    _Atomic_word __result = *__mem;
    *__mem += __val;
    return __result;
  }

static inline void
  __atomic_add_single(_Atomic_word* __mem, int __val)
  { *__mem += __val; }

static inline _Atomic_word
  __attribute__ ((__unused__))
  __exchange_and_add_dispatch(_Atomic_word* __mem, int __val)
  {
#ifdef __GTHREADS
    if (__gthread_active_p())
      return __exchange_and_add(__mem, __val);
    else
      return __exchange_and_add_single(__mem, __val);
#else
    return __exchange_and_add_single(__mem, __val);
#endif
  }

static inline void
  __attribute__ ((__unused__))
  __atomic_add_dispatch(_Atomic_word* __mem, int __val)
  {
#ifdef __GTHREADS
    if (__gthread_active_p())
      __atomic_add(__mem, __val);
    else
      __atomic_add_single(__mem, __val);
#else
    __atomic_add_single(__mem, __val);
#endif
  }

_GLIBCXX_END_NAMESPACE

// Even if the CPU doesn't need a memory barrier, we need to ensure
// that the compiler doesn't reorder memory accesses across the
// barriers.
#ifndef _GLIBCXX_READ_MEM_BARRIER
#define _GLIBCXX_READ_MEM_BARRIER __asm __volatile ("":::"memory")
#endif
#ifndef _GLIBCXX_WRITE_MEM_BARRIER
#define _GLIBCXX_WRITE_MEM_BARRIER __asm __volatile ("":::"memory")
#endif

#endif

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