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  1. // <cfenv> -*- C++ -*-
  2.  
  3. // Copyright (C) 2007-2013 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 include/cfenv
  26.  *  This is a Standard C++ Library header.
  27.  */
  28.  
  29. #ifndef _GLIBCXX_CFENV
  30. #define _GLIBCXX_CFENV 1
  31.  
  32. #pragma GCC system_header
  33.  
  34. #if __cplusplus < 201103L
  35. # include <bits/c++0x_warning.h>
  36. #else
  37.  
  38. #include <bits/c++config.h>
  39.  
  40. #if _GLIBCXX_HAVE_FENV_H
  41. # include <fenv.h>
  42. #endif
  43.  
  44. #ifdef _GLIBCXX_USE_C99_FENV_TR1
  45.  
  46. #undef feclearexcept
  47. #undef fegetexceptflag
  48. #undef feraiseexcept
  49. #undef fesetexceptflag
  50. #undef fetestexcept
  51. #undef fegetround
  52. #undef fesetround
  53. #undef fegetenv
  54. #undef feholdexcept
  55. #undef fesetenv
  56. #undef feupdateenv
  57.  
  58. namespace std
  59. {
  60.   // types
  61.   using ::fenv_t;
  62.   using ::fexcept_t;
  63.  
  64.   // functions
  65.   using ::feclearexcept;
  66.   using ::fegetexceptflag;
  67.   using ::feraiseexcept;
  68.   using ::fesetexceptflag;
  69.   using ::fetestexcept;
  70.  
  71.   using ::fegetround;
  72.   using ::fesetround;
  73.  
  74.   using ::fegetenv;
  75.   using ::feholdexcept;
  76.   using ::fesetenv;
  77.   using ::feupdateenv;
  78. } // namespace std
  79.  
  80. #endif // _GLIBCXX_USE_C99_FENV_TR1
  81.  
  82. #endif // C++11
  83.  
  84. #endif // _GLIBCXX_CFENV
  85.