1 // Low-level functions for atomic operations: IRIX version -*- C++ -*-
3 // Copyright (C) 2001, 2004, 2005, 2009 Free Software Foundation, Inc.
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
16 // Under Section 7 of GPL version 3, you are granted additional
17 // permissions described in the GCC Runtime Library Exception, version
18 // 3.1, as published by the Free Software Foundation.
20 // You should have received a copy of the GNU General Public License and
21 // a copy of the GCC Runtime Library Exception along with this program;
22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23 // <http://www.gnu.org/licenses/>.
26 #include <ext/atomicity.h>
28 namespace __gnu_cxx
_GLIBCXX_VISIBILITY(default)
30 _GLIBCXX_BEGIN_NAMESPACE_VERSION
33 __exchange_and_add(volatile _Atomic_word
* __mem
, int __val
) throw ()
34 { return (_Atomic_word
) test_then_add((unsigned long*) const_cast<_Atomic_word
*>(__mem
), __val
); }
37 __atomic_add(volatile _Atomic_word
* __mem
, int __val
) throw ()
38 { __exchange_and_add(__mem
, __val
); }
40 _GLIBCXX_END_NAMESPACE_VERSION