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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>
// time_point
// template <class ToDuration, class Clock, class Duration>
// time_point<Clock, ToDuration>
// time_point_cast(const time_point<Clock, Duration>& t);
#include <chrono>
#include <type_traits>
#include <cassert>
template <class FromDuration, class ToDuration>
void
test(const FromDuration& df, const ToDuration& d)
{
typedef std::chrono::system_clock Clock;
typedef std::chrono::time_point<Clock, FromDuration> FromTimePoint;
typedef std::chrono::time_point<Clock, ToDuration> ToTimePoint;
{
FromTimePoint f(df);
ToTimePoint t(d);
typedef decltype(std::chrono::time_point_cast<ToDuration>(f)) R;
static_assert((std::is_same<R, ToTimePoint>::value), "");
assert(std::chrono::time_point_cast<ToDuration>(f) == t);
}
}
#if _LIBCPP_STD_VER > 11
template<class FromDuration, long long From, class ToDuration, long long To>
void test_constexpr ()
{
typedef std::chrono::system_clock Clock;
typedef std::chrono::time_point<Clock, FromDuration> FromTimePoint;
typedef std::chrono::time_point<Clock, ToDuration> ToTimePoint;
{
constexpr FromTimePoint f{FromDuration{From}};
constexpr ToTimePoint t{ToDuration{To}};
static_assert(std::chrono::time_point_cast<ToDuration>(f) == t, "");
}
}
#endif
int main()
{
test(std::chrono::milliseconds(7265000), std::chrono::hours(2));
test(std::chrono::milliseconds(7265000), std::chrono::minutes(121));
test(std::chrono::milliseconds(7265000), std::chrono::seconds(7265));
test(std::chrono::milliseconds(7265000), std::chrono::milliseconds(7265000));
test(std::chrono::milliseconds(7265000), std::chrono::microseconds(7265000000LL));
test(std::chrono::milliseconds(7265000), std::chrono::nanoseconds(7265000000000LL));
test(std::chrono::milliseconds(7265000),
std::chrono::duration<double, std::ratio<3600> >(7265./3600));
test(std::chrono::duration<int, std::ratio<2, 3> >(9),
std::chrono::duration<int, std::ratio<3, 5> >(10));
#if _LIBCPP_STD_VER > 11
{
test_constexpr<std::chrono::milliseconds, 7265000, std::chrono::hours, 2> ();
test_constexpr<std::chrono::milliseconds, 7265000, std::chrono::minutes,121> ();
test_constexpr<std::chrono::milliseconds, 7265000, std::chrono::seconds,7265> ();
test_constexpr<std::chrono::milliseconds, 7265000, std::chrono::milliseconds,7265000> ();
test_constexpr<std::chrono::milliseconds, 7265000, std::chrono::microseconds,7265000000LL> ();
test_constexpr<std::chrono::milliseconds, 7265000, std::chrono::nanoseconds,7265000000000LL> ();
typedef std::chrono::duration<int, std::ratio<3, 5>> T1;
test_constexpr<std::chrono::duration<int, std::ratio<2, 3>>, 9, T1, 10> ();
}
#endif
}
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