1 //===----------------------------------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 // UNSUPPORTED: c++98, c++03, c++11, c++14, c++17
10 
11 // <chrono>
12 // class year_month_weekday;
13 
14 // constexpr chrono::weekday weekday() const noexcept;
15 //  Returns: wdi_.weekday()
16 
17 #include <chrono>
18 #include <type_traits>
19 #include <cassert>
20 
21 #include "test_macros.h"
22 
main()23 int main()
24 {
25     using year               = std::chrono::year;
26     using month              = std::chrono::month;
27     using weekday            = std::chrono::weekday;
28     using weekday_indexed    = std::chrono::weekday_indexed;
29     using year_month_weekday = std::chrono::year_month_weekday;
30 
31     ASSERT_NOEXCEPT(                   std::declval<const year_month_weekday>().weekday());
32     ASSERT_SAME_TYPE(weekday, decltype(std::declval<const year_month_weekday>().weekday()));
33 
34     static_assert( year_month_weekday{}.weekday() == weekday{}, "");
35 
36     for (unsigned i = 1; i <= 50; ++i)
37     {
38         year_month_weekday ymwd0(year{1234}, month{2}, weekday_indexed{weekday{i}, 1});
39         assert(static_cast<unsigned>(ymwd0.weekday()) == i);
40     }
41 }
42