//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14, c++17
// <chrono>
// class year_month;
// constexpr bool ok() const noexcept;
// Returns: m_.ok() && y_.ok().
#include <chrono>
#include <cassert>
#include <type_traits>
#include <utility>
#include "test_macros.h"
int main(int, char**)
{
using month = std::chrono::month;
using year = std::chrono::year;
using year_month = std::chrono::year_month;
constexpr month January = std::chrono::January;
ASSERT_NOEXCEPT( std::declval<const year_month>().ok());
ASSERT_SAME_TYPE(bool, decltype(std::declval<const year_month>().ok()));
static_assert(!year_month{year{-32768}, January}.ok(), ""); // Bad year
static_assert(!year_month{year{2019}, month{}}.ok(), ""); // Bad month
static_assert( year_month{year{2019}, January}.ok(), ""); // Both OK
for (unsigned i = 0; i <= 50; ++i)
{
year_month ym{year{2019}, month{i}};
assert( ym.ok() == month{i}.ok());
}
const int ymax = static_cast<int>(year::max());
for (int i = ymax - 100; i <= ymax + 100; ++i)
{
year_month ym{year{i}, January};
assert( ym.ok() == year{i}.ok());
}
return 0;
}