//===----------------------------------------------------------------------===//
//
// 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>
// duration
// constexpr duration operator--(int); // constexpr in C++17
#include <chrono>
#include <cassert>
#include "test_macros.h"
#if TEST_STD_VER > 14
constexpr bool test_constexpr()
{
std::chrono::hours h1(3);
std::chrono::hours h2 = h1--;
return h1.count() == 2 && h2.count() == 3;
}
#endif
int main(int, char**)
{
{
std::chrono::hours h1(3);
std::chrono::hours h2 = h1--;
assert(h1.count() == 2);
assert(h2.count() == 3);
}
#if TEST_STD_VER > 14
static_assert(test_constexpr(), "");
#endif
return 0;
}