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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++98, c++03, c++11, c++14, c++17
// XFAIL: *
// <chrono>
// class weekday;
// template<class charT, class traits>
// basic_ostream<charT, traits>&
// operator<<(basic_ostream<charT, traits>& os, const weekday& wd);
//
// Effects: If wd.ok() == true inserts format(os.getloc(), fmt, wd) where fmt is "%a" widened to charT.
// Otherwise inserts unsigned{wd} << " is not a valid weekday".
//
// template<class charT, class traits>
// basic_ostream<charT, traits>&
// to_stream(basic_ostream<charT, traits>& os, const charT* fmt, const weekday& wd);
//
// Effects: Streams wd 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,
// weekday& wd, basic_string<charT, traits, Alloc>* abbrev = nullptr,
// minutes* offset = nullptr);
//
// Effects: Attempts to parse the input stream is into the weekday wd using
// the format flags given in the NTCTS fmt as specified in 25.12.
// If the parse fails to decode a valid weekday, is.setstate(ios_- base::failbit)
// shall be called and wd 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 weekday = std::chrono::weekday;
std::cout << weekday{3};
return 0;
}
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