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//===----------------------------------------------------------------------===//
//
// 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>
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);
}
#ifndef _LIBCPP_HAS_NO_CONSTEXPR
{
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
}
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