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 // duration 13 14 // template <class Rep2, class Period2> 15 // duration(const duration<Rep2, Period2>& d); 16 17 // inexact conversions allowed for floating point reps 18 19 #include <chrono> 20 #include <cassert> 21 22 #include "test_macros.h" 23 main()24int main() 25 { 26 { 27 std::chrono::duration<double, std::micro> us(1); 28 std::chrono::duration<double, std::milli> ms = us; 29 assert(ms.count() == 1./1000); 30 } 31 #if TEST_STD_VER >= 11 32 { 33 constexpr std::chrono::duration<double, std::micro> us(1); 34 constexpr std::chrono::duration<double, std::milli> ms = us; 35 static_assert(ms.count() == 1./1000, ""); 36 } 37 #endif 38 } 39