37 lines
963 B
C++
37 lines
963 B
C++
//===----------------------------------------------------------------------===//
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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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// duration
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// template <class Rep2, class Period2>
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// duration(const duration<Rep2, Period2>& d);
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// inexact conversions allowed for floating point reps
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#include <chrono>
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#include <cassert>
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int main()
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{
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{
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std::chrono::duration<double, std::micro> us(1);
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std::chrono::duration<double, std::milli> ms = us;
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assert(ms.count() == 1./1000);
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}
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#ifndef _LIBCPP_HAS_NO_CONSTEXPR
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{
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constexpr std::chrono::duration<double, std::micro> us(1);
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constexpr std::chrono::duration<double, std::milli> ms = us;
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static_assert(ms.count() == 1./1000, "");
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}
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#endif
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}
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