libstdc++-v3/testsuite/experimental/ratio/value.cc

   1 // { dg-do compile { target c++14 } }
   2
   3 // Copyright (C) 2014-2016 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 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 #include <experimental/ratio>
  21
  22 using std::ratio;
  23 using std::ratio_equal;
  24 using std::ratio_not_equal;
  25 using std::ratio_less;
  26 using std::ratio_less_equal;
  27 using std::ratio_greater;
  28 using std::ratio_greater_equal;
  29 using std::experimental::ratio_equal_v;
  30 using std::experimental::ratio_not_equal_v;
  31 using std::experimental::ratio_less_v;
  32 using std::experimental::ratio_less_equal_v;
  33 using std::experimental::ratio_greater_v;
  34 using std::experimental::ratio_greater_equal_v;
  35
  36 // These tests are rather simple, the front-end tests already test
  37 // variable templates, and the library tests for the underlying
  38 // traits are more elaborate. These are just simple sanity tests.
  39
  40 static_assert(ratio_equal_v<ratio<1, 3>, ratio<2, 6>>
  41               && ratio_equal<ratio<1, 3>, ratio<2, 6>>::value, "");
  42
  43 static_assert(ratio_not_equal_v<ratio<1, 3>, ratio<2, 5>>
  44               && ratio_not_equal<ratio<1, 3>, ratio<2, 5>>::value, "");
  45
  46 static_assert(ratio_less_v<ratio<1, 4>, ratio<1, 3>>
  47               && ratio_less<ratio<1, 4>, ratio<1, 3>>::value, "");
  48
  49 static_assert(ratio_less_equal_v<ratio<1, 4>, ratio<1, 4>>
  50               && ratio_less_equal_v<ratio<1, 4>, ratio<1, 3>>
  51               && ratio_less_equal<ratio<1, 4>, ratio<1, 4>>::value
  52               && ratio_less_equal<ratio<1, 4>, ratio<1, 3>>::value, "");
  53
  54 static_assert(ratio_greater_v<ratio<1, 3>, ratio<1, 4>>
  55               && ratio_greater<ratio<1, 3>, ratio<1, 4>>::value, "");
  56
  57 static_assert(ratio_greater_equal_v<ratio<1, 4>, ratio<1, 4>>
  58               && ratio_greater_equal_v<ratio<1, 3>, ratio<1, 4>>
  59               && ratio_greater_equal<ratio<1, 4>, ratio<1, 4>>::value
  60               && ratio_greater_equal<ratio<1, 3>, ratio<1, 4>>::value, "");