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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>
// 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()
{
{
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
}
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