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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
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14, c++17
// XFAIL: *
// <chrono>
// class year;
// template<class charT, class traits>
// basic_ostream<charT, traits>&
// operator<<(basic_ostream<charT, traits>& os, const year& y);
//
// Effects: Inserts format(fmt, y) where fmt is "%Y" widened to charT.
// If !y.ok(), appends with " is not a valid year".
//
// template<class charT, class traits>
// basic_ostream<charT, traits>&
// to_stream(basic_ostream<charT, traits>& os, const charT* fmt, const year& y);
//
// Effects: Streams y into os using the format specified by the NTCTS fmt.
// fmt encoding follows the rules specified in 25.11.
//
// template<class charT, class traits, class Alloc = allocator<charT>>
// basic_istream<charT, traits>&
// from_stream(basic_istream<charT, traits>& is, const charT* fmt,
// year& y, basic_string<charT, traits, Alloc>* abbrev = nullptr,
// minutes* offset = nullptr);
//
// Effects: Attempts to parse the input stream is into the year y using the format flags
// given in the NTCTS fmt as specified in 25.12. If the parse fails to decode a valid year,
// is.setstate(ios_base::failbit) shall be called and y shall not be modified. If %Z is used
// and successfully parsed, that value will be assigned to *abbrev if abbrev is non-null.
// If %z (or a modified variant) is used and successfully parsed, that value will be
// assigned to *offset if offset is non-null.
#include <chrono>
#include <type_traits>
#include <cassert>
#include <iostream>
#include "test_macros.h"
int main(int, char**)
{
using year = std::chrono::year;
std::cout << year{2018};
return 0;
}
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