42 lines
1.3 KiB
C++
42 lines
1.3 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// <chrono>
|
|
|
|
// time_point
|
|
|
|
// template <class Clock, class Duration1, class Duration2>
|
|
// typename common_type<Duration1, Duration2>::type
|
|
// operator-(const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs);
|
|
|
|
#include <chrono>
|
|
#include <cassert>
|
|
|
|
#include "test_macros.h"
|
|
|
|
int main(int, char**)
|
|
{
|
|
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(Duration2(5));
|
|
assert((t1 - t2) == Duration2(2995));
|
|
}
|
|
#if TEST_STD_VER > 11
|
|
{
|
|
constexpr std::chrono::time_point<Clock, Duration1> t1(Duration1(3));
|
|
constexpr std::chrono::time_point<Clock, Duration2> t2(Duration2(5));
|
|
static_assert((t1 - t2) == Duration2(2995), "");
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
}
|