| //===----------------------------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <chrono> |
| |
| // duration |
| |
| // template <class Rep1, class Period1, class Rep2, class Period2> |
| // constexpr |
| // typename common_type<duration<Rep1, Period1>, duration<Rep2, Period2>>::type |
| // operator-(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs); |
| |
| #include <chrono> |
| #include <cassert> |
| |
| #include "test_macros.h" |
| |
| int main() |
| { |
| { |
| std::chrono::seconds s1(3); |
| std::chrono::seconds s2(5); |
| std::chrono::seconds r = s1 - s2; |
| assert(r.count() == -2); |
| } |
| { |
| std::chrono::seconds s1(3); |
| std::chrono::microseconds s2(5); |
| std::chrono::microseconds r = s1 - s2; |
| assert(r.count() == 2999995); |
| } |
| { |
| std::chrono::duration<int, std::ratio<2, 3> > s1(3); |
| std::chrono::duration<int, std::ratio<3, 5> > s2(5); |
| std::chrono::duration<int, std::ratio<1, 15> > r = s1 - s2; |
| assert(r.count() == -15); |
| } |
| { |
| std::chrono::duration<int, std::ratio<2, 3> > s1(3); |
| std::chrono::duration<double, std::ratio<3, 5> > s2(5); |
| std::chrono::duration<double, std::ratio<1, 15> > r = s1 - s2; |
| assert(r.count() == -15); |
| } |
| #if TEST_STD_VER >= 11 |
| { |
| constexpr std::chrono::seconds s1(3); |
| constexpr std::chrono::seconds s2(5); |
| constexpr std::chrono::seconds r = s1 - s2; |
| static_assert(r.count() == -2, ""); |
| } |
| { |
| constexpr std::chrono::seconds s1(3); |
| constexpr std::chrono::microseconds s2(5); |
| constexpr std::chrono::microseconds r = s1 - s2; |
| static_assert(r.count() == 2999995, ""); |
| } |
| { |
| constexpr std::chrono::duration<int, std::ratio<2, 3> > s1(3); |
| constexpr std::chrono::duration<int, std::ratio<3, 5> > s2(5); |
| constexpr std::chrono::duration<int, std::ratio<1, 15> > r = s1 - s2; |
| static_assert(r.count() == -15, ""); |
| } |
| { |
| constexpr std::chrono::duration<int, std::ratio<2, 3> > s1(3); |
| constexpr std::chrono::duration<double, std::ratio<3, 5> > s2(5); |
| constexpr std::chrono::duration<double, std::ratio<1, 15> > r = s1 - s2; |
| static_assert(r.count() == -15, ""); |
| } |
| #endif |
| } |