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Name	Size	Permission	Date
pb_ds	[ DIR ]	drwxr-xr-x	2026-05-06 18:20
algorithm	18.84 KB	-rw-r--r--	2026-04-27 14:01
alloc_traits.h	7.98 KB	-rw-r--r--	2026-04-27 14:01
array_allocator.h	4.98 KB	-rw-r--r--	2026-04-27 14:01
atomicity.h	3.41 KB	-rw-r--r--	2026-04-27 14:01
bitmap_allocator.h	30.59 KB	-rw-r--r--	2026-04-27 14:01
cast.h	4.34 KB	-rw-r--r--	2026-04-27 14:01
cmath	6.41 KB	-rw-r--r--	2026-04-27 14:01
codecvt_specializations.h	15.91 KB	-rw-r--r--	2026-04-27 14:01
concurrence.h	7.43 KB	-rw-r--r--	2026-04-27 14:01
debug_allocator.h	3.93 KB	-rw-r--r--	2026-04-27 14:01
enc_filebuf.h	2.19 KB	-rw-r--r--	2026-04-27 14:01
extptr_allocator.h	6.04 KB	-rw-r--r--	2026-04-27 14:01
functional	13.96 KB	-rw-r--r--	2026-04-27 14:01
hash_map	17.36 KB	-rw-r--r--	2026-04-27 14:01
hash_set	16.79 KB	-rw-r--r--	2026-04-27 14:01
iterator	3.94 KB	-rw-r--r--	2026-04-27 14:01
malloc_allocator.h	4.36 KB	-rw-r--r--	2026-04-27 14:01
memory	6.99 KB	-rw-r--r--	2026-04-27 14:01
mt_allocator.h	22.43 KB	-rw-r--r--	2026-04-27 14:01
new_allocator.h	4.33 KB	-rw-r--r--	2026-04-27 14:01
numeric	4.62 KB	-rw-r--r--	2026-04-27 14:01
numeric_traits.h	4.47 KB	-rw-r--r--	2026-04-27 14:01
pod_char_traits.h	5.11 KB	-rw-r--r--	2026-04-27 14:01
pointer.h	19.2 KB	-rw-r--r--	2026-04-27 14:01
pool_allocator.h	8.23 KB	-rw-r--r--	2026-04-27 14:01
random	82.75 KB	-rw-r--r--	2026-04-27 14:01
random.tcc	42.78 KB	-rw-r--r--	2026-04-27 14:01
rb_tree	3.23 KB	-rw-r--r--	2026-04-27 14:01
rc_string_base.h	23.16 KB	-rw-r--r--	2026-04-27 14:01
rope	85.59 KB	-rw-r--r--	2026-04-27 14:01
ropeimpl.h	47.29 KB	-rw-r--r--	2026-04-27 14:01
slist	28.91 KB	-rw-r--r--	2026-04-27 14:01
sso_string_base.h	15.93 KB	-rw-r--r--	2026-04-27 14:01
stdio_filebuf.h	5.3 KB	-rw-r--r--	2026-04-27 14:01
stdio_sync_filebuf.h	7.77 KB	-rw-r--r--	2026-04-27 14:01
string_conversions.h	3.14 KB	-rw-r--r--	2026-04-27 14:01
throw_allocator.h	20.5 KB	-rw-r--r--	2026-04-27 14:01
type_traits.h	5.64 KB	-rw-r--r--	2026-04-27 14:01
typelist.h	16.44 KB	-rw-r--r--	2026-04-27 14:01
vstring.h	103.94 KB	-rw-r--r--	2026-04-27 14:01
vstring.tcc	23.04 KB	-rw-r--r--	2026-04-27 14:01
vstring_fwd.h	3.15 KB	-rw-r--r--	2026-04-27 14:01
vstring_util.h	5.63 KB	-rw-r--r--	2026-04-27 14:01

Rename

// Support 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 ext/atomicity.h
 *  This file is a GNU extension to the Standard C++ Library.
 */

#ifndef _GLIBCXX_ATOMICITY_H
#define _GLIBCXX_ATOMICITY_H	1

#pragma GCC system_header

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

namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION

// 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
  static inline _Atomic_word 
  __exchange_and_add(volatile _Atomic_word* __mem, int __val)
  { return __atomic_fetch_add(__mem, __val, __ATOMIC_ACQ_REL); }

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

void
  __attribute__ ((__unused__))
  __atomic_add(volatile _Atomic_word*, int) throw ();
#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_VERSION
} // 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