libstdc++-v3/include/experimental/ratio

   1 // Variable Templates For ratio -*- C++ -*-
   2
   3 // Copyright (C) 2014-2019 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 >= 201402L
  39
  40 #include <ratio>
  41 #include <experimental/bits/lfts_config.h>
  42
  43 namespace std _GLIBCXX_VISIBILITY(default)
  44 {
  45 _GLIBCXX_BEGIN_NAMESPACE_VERSION
  46
  47 namespace experimental
  48 {
  49 inline namespace fundamentals_v1
  50 {
  51 // See C++14 §20.11.5, ratio comparison
  52 template <typename _R1, typename _R2>
  53   constexpr bool ratio_equal_v = ratio_equal<_R1, _R2>::value;
  54 template <typename _R1, typename _R2>
  55   constexpr bool ratio_not_equal_v = ratio_not_equal<_R1, _R2>::value;
  56 template <typename _R1, typename _R2>
  57   constexpr bool ratio_less_v = ratio_less<_R1, _R2>::value;
  58 template <typename _R1, typename _R2>
  59   constexpr bool ratio_less_equal_v = ratio_less_equal<_R1, _R2>::value;
  60 template <typename _R1, typename _R2>
  61   constexpr bool ratio_greater_v = ratio_greater<_R1, _R2>::value;
  62 template <typename _R1, typename _R2>
  63   constexpr bool ratio_greater_equal_v = ratio_greater_equal<_R1, _R2>::value;
  64 } // namespace fundamentals_v1
  65 } // namespace experimental
  66
  67 _GLIBCXX_END_NAMESPACE_VERSION
  68 } // namespace std
  69
  70 #endif // __cplusplus <= 201103L
  71
  72 #endif // _GLIBCXX_EXPERIMENTAL_RATIO