libstdc++-v3/testsuite/20_util/ratio/operations/ops3.cc

   1 // { dg-do run { target c++11 } }
   2 // { dg-require-cstdint "" }
   3
   4 // 2008-07-03 Chris Fairles <chris.fairles@gmail.com>
   5
   6 // Copyright (C) 2008-2019 Free Software Foundation, Inc.
   7 //
   8 // This file is part of the GNU ISO C++ Library.  This library is free
   9 // software; you can redistribute it and/or modify it under the
  10 // terms of the GNU General Public License as published by the
  11 // Free Software Foundation; either version 3, or (at your option)
  12 // any later version.
  13
  14 // This library is distributed in the hope that it will be useful,
  15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 // GNU General Public License for more details.
  18
  19 // You should have received a copy of the GNU General Public License
  20 // along with this library; see the file COPYING3.  If not see
  21 // <http://www.gnu.org/licenses/>.
  22
  23 #include <ratio>
  24 #include <testsuite_hooks.h>
  25
  26 void
  27 test01()
  28 {
  29   std::ratio_multiply<
  30     std::ratio<2, INTMAX_MAX>,
  31     std::ratio<INTMAX_MAX, 2>>::type r1;
  32
  33   VERIFY( r1.num == 1 );
  34   VERIFY( r1.den == 1 );
  35
  36   std::ratio_multiply<
  37     std::ratio<INTMAX_MAX, 2>,
  38     std::ratio<2 , INTMAX_MAX - 1>>::type r2;
  39
  40   VERIFY( r2.num == INTMAX_MAX );
  41   VERIFY( r2.den == INTMAX_MAX - 1 );
  42 }
  43
  44 void
  45 test02()
  46 {
  47   std::ratio_divide<
  48     std::ratio<INTMAX_MAX, 2>,
  49     std::ratio<INTMAX_MAX, 2>>::type r1;
  50
  51   VERIFY( r1.num == 1 );
  52   VERIFY( r1.den == 1 );
  53
  54   std::ratio_divide<
  55     std::ratio<INTMAX_MAX-1, 2>,
  56     std::ratio<INTMAX_MAX, 2>>::type r2;
  57
  58   VERIFY( r2.num == INTMAX_MAX - 1 );
  59   VERIFY( r2.den == INTMAX_MAX );
  60 }
  61
  62 int main()
  63 {
  64   test01();
  65   test02();
  66   return 0;
  67 }