libstdc++
fenv.h
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00001 // -*- C++ -*- compatibility header.
00002 
00003 // Copyright (C) 2007, 2008, 2009, 2010 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 fenv.h
00026  *  This is a Standard C++ Library header.
00027  */
00028 
00029 #ifndef _GLIBCXX_FENV_H
00030 #define _GLIBCXX_FENV_H 1
00031 
00032 #pragma GCC system_header
00033 
00034 #include <bits/c++config.h>
00035 #if _GLIBCXX_HAVE_FENV_H
00036 # include_next <fenv.h>
00037 #endif
00038 
00039 #ifdef __GXX_EXPERIMENTAL_CXX0X__
00040 
00041 #if _GLIBCXX_USE_C99_FENV_TR1
00042 
00043 #undef feclearexcept
00044 #undef fegetexceptflag
00045 #undef feraiseexcept
00046 #undef fesetexceptflag
00047 #undef fetestexcept
00048 #undef fegetround
00049 #undef fesetround
00050 #undef fegetenv
00051 #undef feholdexcept
00052 #undef fesetenv
00053 #undef feupdateenv
00054 
00055 namespace std
00056 {
00057   // types
00058   using ::fenv_t;
00059   using ::fexcept_t;
00060 
00061   // functions
00062   using ::feclearexcept;
00063   using ::fegetexceptflag;
00064   using ::feraiseexcept;
00065   using ::fesetexceptflag;
00066   using ::fetestexcept;
00067 
00068   using ::fegetround;
00069   using ::fesetround;
00070 
00071   using ::fegetenv;
00072   using ::feholdexcept;
00073   using ::fesetenv;
00074   using ::feupdateenv;
00075 } // namespace
00076 
00077 #endif // _GLIBCXX_USE_C99_FENV_TR1
00078 
00079 #endif // __GXX_EXPERIMENTAL_CXX0X__
00080 
00081 #endif // _GLIBCXX_FENV_H