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      1 // -*- C++ -*- compatibility header.
      2 
      3 // Copyright (C) 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
      4 //
      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)
      9 // any later version.
     10 
     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.
     15 
     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.
     19 
     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/>.
     24 
     25 /** @file fenv.h
     26  *  This is a Standard C++ Library header.
     27  */
     28 
     29 #ifndef _GLIBCXX_FENV_H
     30 #define _GLIBCXX_FENV_H 1
     31 
     32 #pragma GCC system_header
     33 
     34 #include <bits/c++config.h>
     35 #if _GLIBCXX_HAVE_FENV_H
     36 # include_next <fenv.h>
     37 #endif
     38 
     39 #ifdef __GXX_EXPERIMENTAL_CXX0X__
     40 
     41 #if _GLIBCXX_USE_C99_FENV_TR1
     42 
     43 #undef feclearexcept
     44 #undef fegetexceptflag
     45 #undef feraiseexcept
     46 #undef fesetexceptflag
     47 #undef fetestexcept
     48 #undef fegetround
     49 #undef fesetround
     50 #undef fegetenv
     51 #undef feholdexcept
     52 #undef fesetenv
     53 #undef feupdateenv
     54 
     55 namespace std
     56 {
     57   // types
     58   using ::fenv_t;
     59   using ::fexcept_t;
     60 
     61   // functions
     62   using ::feclearexcept;
     63   using ::fegetexceptflag;
     64   using ::feraiseexcept;
     65   using ::fesetexceptflag;
     66   using ::fetestexcept;
     67 
     68   using ::fegetround;
     69   using ::fesetround;
     70 
     71   using ::fegetenv;
     72   using ::feholdexcept;
     73   using ::fesetenv;
     74   using ::feupdateenv;
     75 } // namespace
     76 
     77 #endif // _GLIBCXX_USE_C99_FENV_TR1
     78 
     79 #endif // __GXX_EXPERIMENTAL_CXX0X__
     80 
     81 #endif // _GLIBCXX_FENV_H
     82