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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 weekday_last;
13 
14 //  constexpr chrono::weekday weekday() const noexcept;
15 //  Returns: wd_
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 weekday      = std::chrono::weekday;
26     using weekday_last = std::chrono::weekday_last;
27 
28     ASSERT_NOEXCEPT(                   std::declval<const weekday_last>().weekday());
29     ASSERT_SAME_TYPE(weekday, decltype(std::declval<const weekday_last>().weekday()));
30 
31     for (unsigned i = 0; i <= 255; ++i)
32         assert(weekday_last{weekday{i}}.weekday() == weekday{i});
33 }
34