#include <chrono>
#include <cassert>
#include "test_macros.h"
int main(int, char**)
{
typedef std::chrono::system_clock Clock;
typedef std::chrono::microseconds Duration1;
typedef std::chrono::milliseconds Duration2;
{
std::chrono::time_point<Clock, Duration2> t2(Duration2(3));
std::chrono::time_point<Clock, Duration1> t1 = t2;
assert(t1.time_since_epoch() == Duration1(3000));
}
#if TEST_STD_VER > 11
{
constexpr std::chrono::time_point<Clock, Duration2> t2(Duration2(3));
constexpr std::chrono::time_point<Clock, Duration1> t1 = t2;
static_assert(t1.time_since_epoch() == Duration1(3000), "");
}
#endif
return 0;
}