1//===----------------------------------------------------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is dual licensed under the MIT and the University of Illinois Open 6// Source Licenses. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10// <chrono> 11 12// time_point 13 14// template <class Duration2> 15// time_point(const time_point<clock, Duration2>& t); 16 17#include <chrono> 18#include <cassert> 19 20#include "test_macros.h" 21 22int main() 23{ 24 typedef std::chrono::system_clock Clock; 25 typedef std::chrono::microseconds Duration1; 26 typedef std::chrono::milliseconds Duration2; 27 { 28 std::chrono::time_point<Clock, Duration2> t2(Duration2(3)); 29 std::chrono::time_point<Clock, Duration1> t1 = t2; 30 assert(t1.time_since_epoch() == Duration1(3000)); 31 } 32#if TEST_STD_VER > 11 33 { 34 constexpr std::chrono::time_point<Clock, Duration2> t2(Duration2(3)); 35 constexpr std::chrono::time_point<Clock, Duration1> t1 = t2; 36 static_assert(t1.time_since_epoch() == Duration1(3000), ""); 37 } 38#endif 39} 40