//===----------------------------------------------------------------------===//
//
// 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_weekday;
// constexpr unsigned index() const noexcept;
// Returns: wdi_.index()
#include <chrono>
#include <cassert>
#include <type_traits>
#include <utility>
#include "test_macros.h"
int main(int, char**)
{
using year = std::chrono::year;
using month = std::chrono::month;
using weekday = std::chrono::weekday;
using weekday_indexed = std::chrono::weekday_indexed;
using year_month_weekday = std::chrono::year_month_weekday;
ASSERT_NOEXCEPT( std::declval<const year_month_weekday>().index());
ASSERT_SAME_TYPE(unsigned, decltype(std::declval<const year_month_weekday>().index()));
static_assert( year_month_weekday{}.index() == 0, "");
for (unsigned i = 1; i <= 50; ++i)
{
year_month_weekday ymwd0(year{1234}, month{2}, weekday_indexed{weekday{2}, i});
assert(ymwd0.index() == i);
}
return 0;
}