libcxx/test/std/time/time.duration/time.duration.arithmetic/op_mod=rep.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // <chrono>
  10
  11 // duration
  12
  13 // duration& operator%=(const rep& rhs)
  14
  15 #include <chrono>
  16 #include <cassert>
  17
  18 #include "test_macros.h"
  19
  20 class NotARep {};
  21
  22 typedef std::chrono::seconds Duration;
  23 Duration operator%=(Duration d, NotARep) { return d; }
  24
  25 #if TEST_STD_VER > 14
  26 constexpr bool test_constexpr()
  27 {
  28     std::chrono::seconds s(11);
  29     s %= 3;
  30     return s.count() == 2;
  31 }
  32 #endif
  33
  34 int main(int, char**)
  35 {
  36     {
  37     std::chrono::microseconds us(11);
  38     us %= 3;
  39     assert(us.count() == 2);
  40     }
  41
  42 #if TEST_STD_VER > 14
  43     static_assert(test_constexpr(), "");
  44 #endif
  45
  46 #if TEST_STD_VER >= 11
  47     { // This is PR#41130
  48     Duration d(5);
  49     NotARep n;
  50     d %= n;
  51     assert(d.count() == 5);
  52     }
  53 #endif
  54
  55
  56   return 0;
  57 }