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
10 // <chrono>
11 // class month_weekday;
12
13 // constexpr chrono::month month() const noexcept;
14 // Returns: wd_
15
16 #include <chrono>
17 #include <type_traits>
18 #include <cassert>
19
20 #include "test_macros.h"
21
main(int,char **)22 int main(int, char**)
23 {
24 using month_weekday = std::chrono::month_weekday;
25 using month = std::chrono::month;
26 using weekday = std::chrono::weekday;
27 using weekday_indexed = std::chrono::weekday_indexed;
28
29 constexpr weekday Sunday = std::chrono::Sunday;
30
31 ASSERT_NOEXCEPT( std::declval<const month_weekday>().month());
32 ASSERT_SAME_TYPE(month, decltype(std::declval<const month_weekday>().month()));
33
34 static_assert( month_weekday{}.month() == month{}, "");
35
36 for (unsigned i = 1; i <= 50; ++i)
37 {
38 month_weekday md(month{i}, weekday_indexed{Sunday, 1});
39 assert( static_cast<unsigned>(md.month()) == i);
40 }
41
42 return 0;
43 }
44