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      1 // TR1 cfenv -*- C++ -*-
      2 
      3 // Copyright (C) 2006, 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 tr1/cfenv
     26  *  This is a TR1 C++ Library header. 
     27  */
     28 
     29 #ifndef _GLIBCXX_TR1_CFENV
     30 #define _GLIBCXX_TR1_CFENV 1
     31 
     32 #pragma GCC system_header
     33 
     34 #include <bits/c++config.h>
     35 
     36 #if _GLIBCXX_HAVE_FENV_H
     37 # include <fenv.h>
     38 #endif
     39 
     40 #ifdef _GLIBCXX_USE_C99_FENV_TR1
     41 
     42 #undef feclearexcept
     43 #undef fegetexceptflag
     44 #undef feraiseexcept
     45 #undef fesetexceptflag
     46 #undef fetestexcept
     47 #undef fegetround
     48 #undef fesetround
     49 #undef fegetenv
     50 #undef feholdexcept
     51 #undef fesetenv
     52 #undef feupdateenv
     53 
     54 namespace std _GLIBCXX_VISIBILITY(default)
     55 {
     56 namespace tr1
     57 {
     58   // types
     59   using ::fenv_t;
     60   using ::fexcept_t;
     61 
     62   // functions
     63   using ::feclearexcept;
     64   using ::fegetexceptflag;
     65   using ::feraiseexcept;
     66   using ::fesetexceptflag;
     67   using ::fetestexcept;
     68 
     69   using ::fegetround;
     70   using ::fesetround;
     71 
     72   using ::fegetenv;
     73   using ::feholdexcept;
     74   using ::fesetenv;
     75   using ::feupdateenv;
     76 }
     77 }
     78 
     79 #endif // _GLIBCXX_USE_C99_FENV_TR1
     80 
     81 #endif // _GLIBCXX_TR1_CFENV
     82