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  1. // Variable Templates For ratio -*- C++ -*-
  2.  
  3. // Copyright (C) 2014-2015 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 experimental/ratio
  26.  *  This is a TS C++ Library header.
  27.  */
  28.  
  29. //
  30. // N3932 Variable Templates For Type Traits (Revision 1)
  31. //
  32.  
  33. #ifndef _GLIBCXX_EXPERIMENTAL_RATIO
  34. #define _GLIBCXX_EXPERIMENTAL_RATIO 1
  35.  
  36. #pragma GCC system_header
  37.  
  38. #if __cplusplus <= 201103L
  39. # include <bits/c++14_warning.h>
  40. #else
  41.  
  42. #include <ratio>
  43.  
  44.  
  45. namespace std _GLIBCXX_VISIBILITY(default)
  46. {
  47. namespace experimental
  48. {
  49. inline namespace fundamentals_v1
  50. {
  51. _GLIBCXX_BEGIN_NAMESPACE_VERSION
  52. // See C++14 ยง20.11.5, ratio comparison
  53. template <typename _R1, typename _R2>
  54.   constexpr bool ratio_equal_v = ratio_equal<_R1, _R2>::value;
  55. template <typename _R1, typename _R2>
  56.   constexpr bool ratio_not_equal_v = ratio_not_equal<_R1, _R2>::value;
  57. template <typename _R1, typename _R2>
  58.   constexpr bool ratio_less_v = ratio_less<_R1, _R2>::value;
  59. template <typename _R1, typename _R2>
  60.   constexpr bool ratio_less_equal_v = ratio_less_equal<_R1, _R2>::value;
  61. template <typename _R1, typename _R2>
  62.   constexpr bool ratio_greater_v = ratio_greater<_R1, _R2>::value;
  63. template <typename _R1, typename _R2>
  64.   constexpr bool ratio_greater_equal_v = ratio_greater_equal<_R1, _R2>::value;
  65.  
  66. _GLIBCXX_END_NAMESPACE_VERSION
  67. } // namespace fundamentals_v1
  68. } // namespace experimental
  69. } // namespace std
  70.  
  71. #endif // __cplusplus <= 201103L
  72.  
  73. #endif // _GLIBCXX_EXPERIMENTAL_RATIO
  74.