libcxx/test/std/time/time.duration/time.duration.cons/convert_overflow.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 // template <class Rep2, class Period2>
  14 //   duration(const duration<Rep2, Period2>& d);
  15
  16 // overflow should SFINAE instead of error out, LWG 2094
  17
  18 #include <chrono>
  19 #include <cassert>
  20 #include <ratio>
  21
  22 #include "test_macros.h"
  23
  24 bool called = false;
  25
  26 void f(std::chrono::milliseconds);
  27 void f(std::chrono::seconds)
  28 {
  29     called = true;
  30 }
  31
  32 int main(int, char**)
  33 {
  34     {
  35     std::chrono::duration<int, std::exa> r(1);
  36     f(r);
  37     assert(called);
  38     }
  39
  40   return 0;
  41 }