1bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 2bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 3f5256e16dfc425c1d466f6308d4026d529ce9e0bHoward Hinnant// The LLVM Compiler Infrastructure 4bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 5b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant// This file is dual licensed under the MIT and the University of Illinois Open 6b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant// Source Licenses. See LICENSE.TXT for details. 7bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 8bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 9bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 10bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// <chrono> 11bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 12c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant// template <class Clock, class Duration1, class Duration2> 13bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// struct common_type<chrono::time_point<Clock, Duration1>, chrono::time_point<Clock, Duration2>> 14c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant// { 15c52f43e72dfcea03037729649da84c23b3beb04aHoward Hinnant// typedef chrono::time_point<Clock, typename common_type<Duration1, Duration2>::type> type; 16bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// }; 17bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 18bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <chrono> 19bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 20bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnanttemplate <class D1, class D2, class De> 21bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantvoid 22bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnanttest() 23bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 24bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef std::chrono::system_clock C; 25bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef std::chrono::time_point<C, D1> T1; 26bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef std::chrono::time_point<C, D2> T2; 27bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef std::chrono::time_point<C, De> Te; 28bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef typename std::common_type<T1, T2>::type Tc; 29bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant static_assert((std::is_same<Tc, Te>::value), ""); 30bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 31bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 32bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantint main() 33bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 34bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<std::chrono::duration<int, std::ratio<1, 100> >, 35bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::chrono::duration<long, std::ratio<1, 1000> >, 36bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::chrono::duration<long, std::ratio<1, 1000> > >(); 37bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<std::chrono::duration<long, std::ratio<1, 100> >, 38bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::chrono::duration<int, std::ratio<1, 1000> >, 39bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::chrono::duration<long, std::ratio<1, 1000> > >(); 40bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<std::chrono::duration<char, std::ratio<1, 30> >, 41bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::chrono::duration<short, std::ratio<1, 1000> >, 42bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::chrono::duration<int, std::ratio<1, 3000> > >(); 43bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<std::chrono::duration<double, std::ratio<21, 1> >, 44bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::chrono::duration<short, std::ratio<15, 1> >, 45bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::chrono::duration<double, std::ratio<3, 1> > >(); 46bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 47