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      1 // TR1 cfenv -*- C++ -*-
      2 
      3 // Copyright (C) 2006-2024 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/requires_hosted.h> // TR1
     35 
     36 #include <bits/c++config.h>
     37 
     38 #if _GLIBCXX_HAVE_FENV_H
     39 # include <fenv.h>
     40 #endif
     41 
     42 #ifdef _GLIBCXX_USE_C99_FENV_TR1
     43 
     44 #undef feclearexcept
     45 #undef fegetexceptflag
     46 #undef feraiseexcept
     47 #undef fesetexceptflag
     48 #undef fetestexcept
     49 #undef fegetround
     50 #undef fesetround
     51 #undef fegetenv
     52 #undef feholdexcept
     53 #undef fesetenv
     54 #undef feupdateenv
     55 
     56 namespace std _GLIBCXX_VISIBILITY(default)
     57 {
     58 _GLIBCXX_BEGIN_NAMESPACE_VERSION
     59 
     60 namespace tr1
     61 {
     62   // types
     63   using ::fenv_t;
     64   using ::fexcept_t;
     65 
     66   // functions
     67   using ::feclearexcept;
     68   using ::fegetexceptflag;
     69   using ::feraiseexcept;
     70   using ::fesetexceptflag;
     71   using ::fetestexcept;
     72 
     73   using ::fegetround;
     74   using ::fesetround;
     75 
     76   using ::fegetenv;
     77   using ::feholdexcept;
     78   using ::fesetenv;
     79   using ::feupdateenv;
     80 }
     81 
     82 _GLIBCXX_END_NAMESPACE_VERSION
     83 }
     84 
     85 #endif // _GLIBCXX_USE_C99_FENV_TR1
     86 
     87 #endif // _GLIBCXX_TR1_CFENV
     88