libstdc++
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00001 // <cfenv> -*- C++ -*- 00002 00003 // Copyright (C) 2007, 2008, 2009 Free Software Foundation, Inc. 00004 // 00005 // This file is part of the GNU ISO C++ Library. This library is free 00006 // software; you can redistribute it and/or modify it under the 00007 // terms of the GNU General Public License as published by the 00008 // Free Software Foundation; either version 3, or (at your option) 00009 // any later version. 00010 00011 // This library is distributed in the hope that it will be useful, 00012 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00014 // GNU General Public License for more details. 00015 00016 // Under Section 7 of GPL version 3, you are granted additional 00017 // permissions described in the GCC Runtime Library Exception, version 00018 // 3.1, as published by the Free Software Foundation. 00019 00020 // You should have received a copy of the GNU General Public License and 00021 // a copy of the GCC Runtime Library Exception along with this program; 00022 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 00023 // <http://www.gnu.org/licenses/>. 00024 00025 /** @file include/cfenv 00026 * This is a Standard C++ Library header. 00027 */ 00028 00029 #ifndef _GLIBCXX_CFENV 00030 #define _GLIBCXX_CFENV 1 00031 00032 #pragma GCC system_header 00033 00034 #ifndef __GXX_EXPERIMENTAL_CXX0X__ 00035 # include <c++0x_warning.h> 00036 #endif 00037 00038 #if defined(_GLIBCXX_INCLUDE_AS_TR1) 00039 # error C++0x header cannot be included from TR1 header 00040 #endif 00041 00042 #include <bits/c++config.h> 00043 #if _GLIBCXX_HAVE_FENV_H 00044 # include <fenv.h> 00045 #endif 00046 00047 #if defined(_GLIBCXX_INCLUDE_AS_CXX0X) 00048 # include <tr1_impl/cfenv> 00049 #else 00050 # define _GLIBCXX_INCLUDE_AS_CXX0X 00051 # define _GLIBCXX_BEGIN_NAMESPACE_TR1 00052 # define _GLIBCXX_END_NAMESPACE_TR1 00053 # define _GLIBCXX_TR1 00054 # include <tr1_impl/cfenv> 00055 # undef _GLIBCXX_TR1 00056 # undef _GLIBCXX_END_NAMESPACE_TR1 00057 # undef _GLIBCXX_BEGIN_NAMESPACE_TR1 00058 # undef _GLIBCXX_INCLUDE_AS_CXX0X 00059 #endif 00060 00061 #endif // _GLIBCXX_CFENV