xref: /dflybsd-src/contrib/gcc-4.7/libstdc++-v3/libsupc++/atomic_lockfree_defines.h (revision 04febcfb30580676d3e95f58a16c5137ee478b32)
1*e4b17023SJohn Marino // -*- C++ -*- header.
2*e4b17023SJohn Marino 
3*e4b17023SJohn Marino // Copyright (C) 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
4*e4b17023SJohn Marino //
5*e4b17023SJohn Marino // This file is part of the GNU ISO C++ Library.  This library is free
6*e4b17023SJohn Marino // software; you can redistribute it and/or modify it under the
7*e4b17023SJohn Marino // terms of the GNU General Public License as published by the
8*e4b17023SJohn Marino // Free Software Foundation; either version 3, or (at your option)
9*e4b17023SJohn Marino // any later version.
10*e4b17023SJohn Marino 
11*e4b17023SJohn Marino // This library is distributed in the hope that it will be useful,
12*e4b17023SJohn Marino // but WITHOUT ANY WARRANTY; without even the implied warranty of
13*e4b17023SJohn Marino // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14*e4b17023SJohn Marino // GNU General Public License for more details.
15*e4b17023SJohn Marino 
16*e4b17023SJohn Marino // Under Section 7 of GPL version 3, you are granted additional
17*e4b17023SJohn Marino // permissions described in the GCC Runtime Library Exception, version
18*e4b17023SJohn Marino // 3.1, as published by the Free Software Foundation.
19*e4b17023SJohn Marino 
20*e4b17023SJohn Marino // You should have received a copy of the GNU General Public License and
21*e4b17023SJohn Marino // a copy of the GCC Runtime Library Exception along with this program;
22*e4b17023SJohn Marino // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
23*e4b17023SJohn Marino // <http://www.gnu.org/licenses/>.
24*e4b17023SJohn Marino 
25*e4b17023SJohn Marino /** @file bits/atomic_lockfree_defines.h
26*e4b17023SJohn Marino  *  This is an internal header file, included by other library headers.
27*e4b17023SJohn Marino  *  Do not attempt to use it directly. @headername{atomic}
28*e4b17023SJohn Marino  */
29*e4b17023SJohn Marino 
30*e4b17023SJohn Marino #ifndef _GLIBCXX_ATOMIC_LOCK_FREE_H
31*e4b17023SJohn Marino #define _GLIBCXX_ATOMIC_LOCK_FREE_H 1
32*e4b17023SJohn Marino 
33*e4b17023SJohn Marino #pragma GCC system_header
34*e4b17023SJohn Marino 
35*e4b17023SJohn Marino /**
36*e4b17023SJohn Marino  * @addtogroup atomics
37*e4b17023SJohn Marino  * @{
38*e4b17023SJohn Marino  */
39*e4b17023SJohn Marino 
40*e4b17023SJohn Marino /**
41*e4b17023SJohn Marino  * Lock-free property.
42*e4b17023SJohn Marino  *
43*e4b17023SJohn Marino  * 0 indicates that the types are never lock-free.
44*e4b17023SJohn Marino  * 1 indicates that the types are sometimes lock-free.
45*e4b17023SJohn Marino  * 2 indicates that the types are always lock-free.
46*e4b17023SJohn Marino  */
47*e4b17023SJohn Marino 
48*e4b17023SJohn Marino #ifdef __GXX_EXPERIMENTAL_CXX0X__
49*e4b17023SJohn Marino #define ATOMIC_BOOL_LOCK_FREE		__GCC_ATOMIC_BOOL_LOCK_FREE
50*e4b17023SJohn Marino #define ATOMIC_CHAR_LOCK_FREE		__GCC_ATOMIC_CHAR_LOCK_FREE
51*e4b17023SJohn Marino #define ATOMIC_WCHAR_T_LOCK_FREE	__GCC_ATOMIC_WCHAR_T_LOCK_FREE
52*e4b17023SJohn Marino #define ATOMIC_CHAR16_T_LOCK_FREE	__GCC_ATOMIC_CHAR16_T_LOCK_FREE
53*e4b17023SJohn Marino #define ATOMIC_CHAR32_T_LOCK_FREE	__GCC_ATOMIC_CHAR32_T_LOCK_FREE
54*e4b17023SJohn Marino #define ATOMIC_SHORT_LOCK_FREE		__GCC_ATOMIC_SHORT_LOCK_FREE
55*e4b17023SJohn Marino #define ATOMIC_INT_LOCK_FREE		__GCC_ATOMIC_INT_LOCK_FREE
56*e4b17023SJohn Marino #define ATOMIC_LONG_LOCK_FREE		__GCC_ATOMIC_LONG_LOCK_FREE
57*e4b17023SJohn Marino #define ATOMIC_LLONG_LOCK_FREE		__GCC_ATOMIC_LLONG_LOCK_FREE
58*e4b17023SJohn Marino #define ATOMIC_POINTER_LOCK_FREE	__GCC_ATOMIC_POINTER_LOCK_FREE
59*e4b17023SJohn Marino #endif
60*e4b17023SJohn Marino 
61*e4b17023SJohn Marino // @} group atomics
62*e4b17023SJohn Marino 
63*e4b17023SJohn Marino #endif
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