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//===----------------------------------------------------------------------===//
//
// ÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊThe LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

// <chrono>

// time_point

// template <class Clock, class Duration1, class Rep2, class Period2> 
//   time_point<Clock, typename common_type<Duration1, duration<Rep2, Period2>>::type> 
//   operator-(const time_point<Clock, Duration1>& lhs, const duration<Rep2, Period2>& rhs);

#include <chrono>
#include <cassert>

int main()
{
    typedef std::chrono::system_clock Clock;
    typedef std::chrono::milliseconds Duration1;
    typedef std::chrono::microseconds Duration2;
    std::chrono::time_point<Clock, Duration1> t1(Duration1(3));
    std::chrono::time_point<Clock, Duration2> t2 = t1 - Duration2(5);
    assert(t2.time_since_epoch() == Duration2(2995));
}
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