libstdc++-v3/include/experimental/ratio

   1 // Variable Templates For ratio -*- C++ -*-
   2
   3 // Copyright (C) 2014-2022 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  *  @ingroup libfund-ts
  28  */
  29
  30 //
  31 // N3932 Variable Templates For Type Traits (Revision 1)
  32 //
  33
  34 #ifndef _GLIBCXX_EXPERIMENTAL_RATIO
  35 #define _GLIBCXX_EXPERIMENTAL_RATIO 1
  36
  37 #pragma GCC system_header
  38
  39 #if __cplusplus >= 201402L
  40
  41 #include <ratio>
  42 #include <experimental/bits/lfts_config.h>
  43
  44 namespace std _GLIBCXX_VISIBILITY(default)
  45 {
  46 _GLIBCXX_BEGIN_NAMESPACE_VERSION
  47
  48 namespace experimental
  49 {
  50 inline namespace fundamentals_v1
  51 {
  52 // See C++14 20.11.5, 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 } // namespace fundamentals_v1
  66 } // namespace experimental
  67
  68 _GLIBCXX_END_NAMESPACE_VERSION
  69 } // namespace std
  70
  71 #endif // __cplusplus <= 201103L
  72
  73 #endif // _GLIBCXX_EXPERIMENTAL_RATIO