//===----------------------------------------------------------------------===//
//
//                     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.
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++98, c++03, c++11, c++14, c++17

// <chrono>
// class year_month_day_last;

//  constexpr year_month_day_last(const chrono::year& y,
//                                const chrono::month_day_last& mdl) noexcept;
//
//  Effects:  Constructs an object of type year_month_day_last by initializing
//                initializing y_ with y and mdl_ with mdl.
//
//  constexpr chrono::year                     year() const noexcept;
//  constexpr chrono::month                   month() const noexcept;
//  constexpr chrono::month_day_last month_day_last() const noexcept;
//  constexpr bool                               ok() const noexcept;

#include <chrono>
#include <type_traits>
#include <cassert>

#include "test_macros.h"

int main()
{
    using year                = std::chrono::year;
    using month               = std::chrono::month;
    using month_day_last      = std::chrono::month_day_last;
    using year_month_day_last = std::chrono::year_month_day_last;

    ASSERT_NOEXCEPT(year_month_day_last{year{1}, month_day_last{month{1}}});

    constexpr month January = std::chrono::January;

    constexpr year_month_day_last ymdl0{year{}, month_day_last{month{}}};
    static_assert( ymdl0.year()           == year{},                  "");
    static_assert( ymdl0.month()          == month{},                 "");
    static_assert( ymdl0.month_day_last() == month_day_last{month{}}, "");
    static_assert(!ymdl0.ok(),                                        "");

    constexpr year_month_day_last ymdl1{year{2019}, month_day_last{January}};
    static_assert( ymdl1.year()           == year{2019},              "");
    static_assert( ymdl1.month()          == January,                 "");
    static_assert( ymdl1.month_day_last() == month_day_last{January}, "");
    static_assert( ymdl1.ok(),                                        "");
}