1  // -*- C++ -*- compatibility header.
       2  
       3  // Copyright (C) 2007-2023 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  #if __cplusplus >= 201103L
      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 // C++11
      80  
      81  #endif // _GLIBCXX_FENV_H