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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>
// template <class Rep1, class Period1, class Rep2, class Period2>
// struct common_type<chrono::duration<Rep1, Period1>, chrono::duration<Rep2, Period2>>
// {
// typedef chrono::duration<typename common_type<Rep1, Rep2>::type, see below }> type;
// };
#include <chrono>
template <class D1, class D2, class De>
void
test()
{
typedef typename std::common_type<D1, D2>::type Dc;
static_assert((std::is_same<Dc, De>::value), "");
}
int main()
{
test<std::chrono::duration<int, std::ratio<1, 100> >,
std::chrono::duration<long, std::ratio<1, 1000> >,
std::chrono::duration<long, std::ratio<1, 1000> > >();
test<std::chrono::duration<long, std::ratio<1, 100> >,
std::chrono::duration<int, std::ratio<1, 1000> >,
std::chrono::duration<long, std::ratio<1, 1000> > >();
test<std::chrono::duration<char, std::ratio<1, 30> >,
std::chrono::duration<short, std::ratio<1, 1000> >,
std::chrono::duration<int, std::ratio<1, 3000> > >();
test<std::chrono::duration<double, std::ratio<21, 1> >,
std::chrono::duration<short, std::ratio<15, 1> >,
std::chrono::duration<double, std::ratio<3, 1> > >();
}
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