libstdc++-v3/testsuite/20_util/duration/arithmetic/1.cc

   1 // { dg-do run { target c++11 } }
   2
   3 // Copyright (C) 2008-2019 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 // 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 // 20.8.3 Class template duration [time.duration]
  21
  22 #include <chrono>
  23 #include <testsuite_hooks.h>
  24
  25 // 20.8.3.3 duration arithmetic [time.duration.arithmetic] (unary member ops)
  26 void
  27 test01()
  28 {
  29   using namespace std::chrono;
  30
  31   duration<int> d0(3);
  32   duration<int> d1 = -d0;
  33   VERIFY(d0.count() == 3);
  34   VERIFY(d1.count() == -3);
  35
  36   duration<int> d2 = (+d0);
  37   VERIFY(d2.count() == 3);
  38
  39   duration<int> d3(++d2);
  40   VERIFY(d2.count() == 4);
  41   VERIFY(d3.count() == 4);
  42
  43   duration<int> d4(d3++);
  44   VERIFY(d3.count() == 5);
  45   VERIFY(d4.count() == 4);
  46
  47   duration<int> d5(--d4);
  48   VERIFY(d4.count() == 3);
  49   VERIFY(d5.count() == 3);
  50
  51   duration<int> d6(d5--);
  52   VERIFY(d5.count() == 2);
  53   VERIFY(d6.count() == 3);
  54 }
  55
  56 // 20.8.3.3 duration arithmetic [time.duration.arithmetic] (binary member ops)
  57 void
  58 test02()
  59 {
  60   using namespace std::chrono;
  61
  62   duration<int> d7(3);
  63   duration<int> d8(9);
  64   d7 += d8;
  65   VERIFY(d7.count() == 12);
  66   VERIFY(d8.count() == 9);
  67
  68   duration<int> d9(3);
  69   duration<int> d10(9);
  70   d9 -= d10;
  71   VERIFY(d9.count() == -6);
  72   VERIFY(d10.count() == 9);
  73
  74   duration<int> d11(9);
  75   int i = 3;
  76   d11 *= i;
  77   VERIFY(d11.count() == 27);
  78
  79   duration<int> d12(12);
  80   d12 /= i;
  81   VERIFY(d12.count() == 4);
  82 }
  83
  84 int
  85 main()
  86 {
  87   test01();
  88   test02();
  89   return 0;
  90 }