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 12bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// duration 13bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 14bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// static constexpr duration zero(); 15bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 16bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <chrono> 17bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <cassert> 18bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 19bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include "../../rep.h" 20bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 21bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnanttemplate <class D> 22bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantvoid test() 23bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 24473f838128bcf118ab50d08a65a83433ed1b015aHoward Hinnant { 25bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef typename D::rep Rep; 26bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant Rep zero_rep = std::chrono::duration_values<Rep>::zero(); 27bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(D::zero().count() == zero_rep); 28473f838128bcf118ab50d08a65a83433ed1b015aHoward Hinnant } 29473f838128bcf118ab50d08a65a83433ed1b015aHoward Hinnant#ifndef _LIBCPP_HAS_NO_CONSTEXPR 30473f838128bcf118ab50d08a65a83433ed1b015aHoward Hinnant { 31473f838128bcf118ab50d08a65a83433ed1b015aHoward Hinnant typedef typename D::rep Rep; 32473f838128bcf118ab50d08a65a83433ed1b015aHoward Hinnant constexpr Rep zero_rep = std::chrono::duration_values<Rep>::zero(); 33473f838128bcf118ab50d08a65a83433ed1b015aHoward Hinnant static_assert(D::zero().count() == zero_rep, ""); 34473f838128bcf118ab50d08a65a83433ed1b015aHoward Hinnant } 35473f838128bcf118ab50d08a65a83433ed1b015aHoward Hinnant#endif 36bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 37bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 38bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantint main() 39bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 40bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<std::chrono::duration<int> >(); 41bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<std::chrono::duration<Rep> >(); 42bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 43