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78 lines
2.4 KiB
C++
78 lines
2.4 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// <chrono>
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// duration
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// template <class Rep1, class Period1, class Rep2, class Period2>
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// constexpr
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// typename common_type<duration<Rep1, Period1>, duration<Rep2, Period2>>::type
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// operator-(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs);
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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(int, char**)
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{
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{
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std::chrono::seconds s1(3);
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std::chrono::seconds s2(5);
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std::chrono::seconds r = s1 - s2;
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assert(r.count() == -2);
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}
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{
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std::chrono::seconds s1(3);
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std::chrono::microseconds s2(5);
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std::chrono::microseconds r = s1 - s2;
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assert(r.count() == 2999995);
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}
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{
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std::chrono::duration<int, std::ratio<2, 3> > s1(3);
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std::chrono::duration<int, std::ratio<3, 5> > s2(5);
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std::chrono::duration<int, std::ratio<1, 15> > r = s1 - s2;
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assert(r.count() == -15);
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}
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{
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std::chrono::duration<int, std::ratio<2, 3> > s1(3);
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std::chrono::duration<double, std::ratio<3, 5> > s2(5);
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std::chrono::duration<double, std::ratio<1, 15> > r = s1 - s2;
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assert(r.count() == -15);
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}
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#if TEST_STD_VER >= 11
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{
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constexpr std::chrono::seconds s1(3);
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constexpr std::chrono::seconds s2(5);
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constexpr std::chrono::seconds r = s1 - s2;
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static_assert(r.count() == -2, "");
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}
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{
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constexpr std::chrono::seconds s1(3);
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constexpr std::chrono::microseconds s2(5);
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constexpr std::chrono::microseconds r = s1 - s2;
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static_assert(r.count() == 2999995, "");
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}
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{
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constexpr std::chrono::duration<int, std::ratio<2, 3> > s1(3);
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constexpr std::chrono::duration<int, std::ratio<3, 5> > s2(5);
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constexpr std::chrono::duration<int, std::ratio<1, 15> > r = s1 - s2;
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static_assert(r.count() == -15, "");
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}
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{
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constexpr std::chrono::duration<int, std::ratio<2, 3> > s1(3);
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constexpr std::chrono::duration<double, std::ratio<3, 5> > s2(5);
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constexpr std::chrono::duration<double, std::ratio<1, 15> > r = s1 - s2;
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static_assert(r.count() == -15, "");
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}
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#endif
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return 0;
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}
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