ratio 2.4 KB

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  1. // Variable Templates For ratio -*- C++ -*-
  2. // Copyright (C) 2014-2018 Free Software Foundation, Inc.
  3. //
  4. // This file is part of the GNU ISO C++ Library. This library is free
  5. // software; you can redistribute it and/or modify it under the
  6. // terms of the GNU General Public License as published by the
  7. // Free Software Foundation; either version 3, or (at your option)
  8. // any later version.
  9. // This library is distributed in the hope that it will be useful,
  10. // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11. // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12. // GNU General Public License for more details.
  13. // Under Section 7 of GPL version 3, you are granted additional
  14. // permissions described in the GCC Runtime Library Exception, version
  15. // 3.1, as published by the Free Software Foundation.
  16. // You should have received a copy of the GNU General Public License and
  17. // a copy of the GCC Runtime Library Exception along with this program;
  18. // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
  19. // <http://www.gnu.org/licenses/>.
  20. /** @file experimental/ratio
  21. * This is a TS C++ Library header.
  22. */
  23. //
  24. // N3932 Variable Templates For Type Traits (Revision 1)
  25. //
  26. #ifndef _GLIBCXX_EXPERIMENTAL_RATIO
  27. #define _GLIBCXX_EXPERIMENTAL_RATIO 1
  28. #pragma GCC system_header
  29. #if __cplusplus >= 201402L
  30. #include <ratio>
  31. #include <experimental/bits/lfts_config.h>
  32. namespace std _GLIBCXX_VISIBILITY(default)
  33. {
  34. _GLIBCXX_BEGIN_NAMESPACE_VERSION
  35. namespace experimental
  36. {
  37. inline namespace fundamentals_v1
  38. {
  39. // See C++14 §20.11.5, ratio comparison
  40. template <typename _R1, typename _R2>
  41. constexpr bool ratio_equal_v = ratio_equal<_R1, _R2>::value;
  42. template <typename _R1, typename _R2>
  43. constexpr bool ratio_not_equal_v = ratio_not_equal<_R1, _R2>::value;
  44. template <typename _R1, typename _R2>
  45. constexpr bool ratio_less_v = ratio_less<_R1, _R2>::value;
  46. template <typename _R1, typename _R2>
  47. constexpr bool ratio_less_equal_v = ratio_less_equal<_R1, _R2>::value;
  48. template <typename _R1, typename _R2>
  49. constexpr bool ratio_greater_v = ratio_greater<_R1, _R2>::value;
  50. template <typename _R1, typename _R2>
  51. constexpr bool ratio_greater_equal_v = ratio_greater_equal<_R1, _R2>::value;
  52. } // namespace fundamentals_v1
  53. } // namespace experimental
  54. _GLIBCXX_END_NAMESPACE_VERSION
  55. } // namespace std
  56. #endif // __cplusplus <= 201103L
  57. #endif // _GLIBCXX_EXPERIMENTAL_RATIO