40 lines
1.1 KiB
C++
40 lines
1.1 KiB
C++
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//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <chrono>
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// time_point
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// template <class Duration2>
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// time_point(const time_point<clock, Duration2>& t);
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#include <chrono>
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#include <cassert>
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#include "test_macros.h"
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int main()
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{
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typedef std::chrono::system_clock Clock;
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typedef std::chrono::microseconds Duration1;
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typedef std::chrono::milliseconds Duration2;
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{
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std::chrono::time_point<Clock, Duration2> t2(Duration2(3));
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std::chrono::time_point<Clock, Duration1> t1 = t2;
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assert(t1.time_since_epoch() == Duration1(3000));
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}
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#if TEST_STD_VER > 11
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{
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constexpr std::chrono::time_point<Clock, Duration2> t2(Duration2(3));
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constexpr std::chrono::time_point<Clock, Duration1> t1 = t2;
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static_assert(t1.time_since_epoch() == Duration1(3000), "");
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}
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#endif
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}
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