template <class D>
void test()
{
    LIBCPP_ASSERT_NOEXCEPT(std::chrono::duration_values<typename D::rep>::min());
#if TEST_STD_VER > 17
    ASSERT_NOEXCEPT(       std::chrono::duration_values<typename D::rep>::min());
#endif
    {
    typedef typename D::rep Rep;
    Rep min_rep = std::chrono::duration_values<Rep>::min();
    assert(D::min().count() == min_rep);
    }
#if TEST_STD_VER >= 11
    {
    typedef typename D::rep Rep;
    constexpr Rep min_rep = std::chrono::duration_values<Rep>::min();
    static_assert(D::min().count() == min_rep, "");
    }
#endif
}

int main(int, char**)
{
    test<std::chrono::duration<int> >();
    test<std::chrono::duration<Rep> >();

  return 0;
}
