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 <cassert>
18#include <type_traits>
19#include <utility>
20
21#include "test_macros.h"
22
23int main(int, char**)
24{
25 using month = std::chrono::month;
26 using month_day_last = std::chrono::month_day_last;
27
28 ASSERT_NOEXCEPT( std::declval<const month_day_last>().ok());
29 ASSERT_SAME_TYPE(bool, decltype(std::declval<const month_day_last>().ok()));
30
31 static_assert(!month_day_last{month{}}.ok(), "");
32 static_assert( month_day_last{std::chrono::May}.ok(), "");
33
34 for (unsigned i = 1; i <= 12; ++i)
35 {
36 month_day_last mdl{month{i}};
37 assert( mdl.ok());
38 }
39
40 // If the month is not ok, all the days are bad
41 for (unsigned i = 13; i <= 50; ++i)
42 {
43 month_day_last mdl{month{i}};
44 assert(!mdl.ok());
45 }
46
47 return 0;
48}
49

source code of libcxx/test/std/time/time.cal/time.cal.mdlast/ok.pass.cpp