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  1. // -*- C++ -*- compatibility header.
  2.  
  3. // Copyright (C) 2007-2015 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
  82.