1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 // UNSUPPORTED: c++03, c++11, c++14, c++17
9 // XFAIL: *
10
11 // <chrono>
12 // class weekday;
13
14 // template<class charT, class traits>
15 // basic_ostream<charT, traits>&
16 // operator<<(basic_ostream<charT, traits>& os, const weekday& wd);
17 //
18 // Effects: If wd.ok() == true inserts format(os.getloc(), fmt, wd) where fmt is "%a" widened to charT.
19 // Otherwise inserts unsigned{wd} << " is not a valid weekday".
20 //
21 // template<class charT, class traits>
22 // basic_ostream<charT, traits>&
23 // to_stream(basic_ostream<charT, traits>& os, const charT* fmt, const weekday& wd);
24 //
25 // Effects: Streams wd into os using the format specified by the NTCTS fmt.
26 // fmt encoding follows the rules specified in 25.11.
27 //
28 // template<class charT, class traits, class Alloc = allocator<charT>>
29 // basic_istream<charT, traits>&
30 // from_stream(basic_istream<charT, traits>& is, const charT* fmt,
31 // weekday& wd, basic_string<charT, traits, Alloc>* abbrev = nullptr,
32 // minutes* offset = nullptr);
33 //
34 // Effects: Attempts to parse the input stream is into the weekday wd using
35 // the format flags given in the NTCTS fmt as specified in 25.12.
36 // If the parse fails to decode a valid weekday, is.setstate(ios_- base::failbit)
37 // shall be called and wd shall not be modified.
38 // If %Z is used and successfully parsed, that value will be assigned
39 // to *abbrev if abbrev is non-null.
40 // If %z (or a modified variant) is used and successfully parsed,
41 // that value will be assigned to *offset if offset is non-null.
42
43 #include <chrono>
44 #include <type_traits>
45 #include <cassert>
46 #include <iostream>
47
48 #include "test_macros.h"
49
main(int,char **)50 int main(int, char**)
51 {
52 using weekday = std::chrono::weekday;
53
54 std::cout << weekday{3};
55
56 return 0;
57 }
58