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//===----------------------------------------------------------------------===//
//
// 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
// static constexpr duration zero(); // noexcept after C++17
#include <chrono>
#include <cassert>
#include "test_macros.h"
#include "../../rep.h"
template <class D>
void test()
{
LIBCPP_ASSERT_NOEXCEPT(std::chrono::duration_values<typename D::rep>::zero());
#if TEST_STD_VER > 17
ASSERT_NOEXCEPT( std::chrono::duration_values<typename D::rep>::zero());
#endif
{
typedef typename D::rep Rep;
Rep zero_rep = std::chrono::duration_values<Rep>::zero();
assert(D::zero().count() == zero_rep);
}
#if TEST_STD_VER >= 11
{
typedef typename D::rep Rep;
constexpr Rep zero_rep = std::chrono::duration_values<Rep>::zero();
static_assert(D::zero().count() == zero_rep, "");
}
#endif
}
int main(int, char**)
{
test<std::chrono::duration<int> >();
test<std::chrono::duration<Rep> >();
return 0;
}
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