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 // exact conversions allowed for integral reps 17 18 #include <chrono> 19 #include <cassert> 20 21 #include "test_macros.h" 22 main(int,char **)23int main(int, char**) 24 { 25 { 26 std::chrono::milliseconds ms(1); 27 std::chrono::microseconds us = ms; 28 assert(us.count() == 1000); 29 } 30 #if TEST_STD_VER >= 11 31 { 32 constexpr std::chrono::milliseconds ms(1); 33 constexpr std::chrono::microseconds us = ms; 34 static_assert(us.count() == 1000, ""); 35 } 36 #endif 37 38 return 0; 39 } 40