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 Rep1, class Period, class Rep2> 15// constexpr 16// duration<typename common_type<Rep1, Rep2>::type, Period> 17// operator*(const duration<Rep1, Period>& d, const Rep2& s); 18 19// template <class Rep1, class Period, class Rep2> 20// constexpr 21// duration<typename common_type<Rep1, Rep2>::type, Period> 22// operator*(const Rep1& s, const duration<Rep2, Period>& d); 23 24#include <chrono> 25#include <cassert> 26 27int main() 28{ 29 { 30 std::chrono::nanoseconds ns(3); 31 ns = ns * 5; 32 assert(ns.count() == 15); 33 ns = 6 * ns; 34 assert(ns.count() == 90); 35 } 36#ifndef _LIBCPP_HAS_NO_CONSTEXPR 37 { 38 constexpr std::chrono::nanoseconds ns(3); 39 constexpr std::chrono::nanoseconds ns2 = ns * 5; 40 static_assert(ns2.count() == 15, ""); 41 constexpr std::chrono::nanoseconds ns3 = 6 * ns; 42 static_assert(ns3.count() == 18, ""); 43 } 44#endif 45} 46