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_day_last;
12
13 // constexpr bool ok() const noexcept;
14 // Returns: m_.ok()
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 = std::chrono::month;
25 using month_day_last = std::chrono::month_day_last;
26
27 ASSERT_NOEXCEPT( std::declval<const month_day_last>().ok());
28 ASSERT_SAME_TYPE(bool, decltype(std::declval<const month_day_last>().ok()));
29
30 static_assert(!month_day_last{month{}}.ok(), "");
31 static_assert( month_day_last{std::chrono::May}.ok(), "");
32
33 for (unsigned i = 1; i <= 12; ++i)
34 {
35 month_day_last mdl{month{i}};
36 assert( mdl.ok());
37 }
38
39 // If the month is not ok, all the days are bad
40 for (unsigned i = 13; i <= 50; ++i)
41 {
42 month_day_last mdl{month{i}};
43 assert(!mdl.ok());
44 }
45
46 return 0;
47 }
48