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_day;
13 
14 // constexpr chrono::day day() 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 year           = std::chrono::year;
26     using month          = std::chrono::month;
27     using day            = std::chrono::day;
28     using year_month_day = std::chrono::year_month_day;
29 
30     ASSERT_NOEXCEPT(               std::declval<const year_month_day>().day());
31     ASSERT_SAME_TYPE(day, decltype(std::declval<const year_month_day>().day()));
32 
33     static_assert( year_month_day{}.day() == day{}, "");
34 
35     for (unsigned i = 1; i <= 50; ++i)
36     {
37         year_month_day ymd(year{1234}, month{2}, day{i});
38         assert( static_cast<unsigned>(ymd.day()) == i);
39     }
40 }
41