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_weekday_last;
12
13// constexpr bool ok() const noexcept;
14// Returns: m_.ok() && wdl_.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 weekday = std::chrono::weekday;
27 using weekday_last = std::chrono::weekday_last;
28 using month_weekday_last = std::chrono::month_weekday_last;
29
30 constexpr month January = std::chrono::January;
31 constexpr weekday Tuesday = std::chrono::Tuesday;
32 constexpr weekday_last lastTuesday = weekday_last{Tuesday};
33
34 ASSERT_NOEXCEPT( std::declval<const month_weekday_last>().ok());
35 ASSERT_SAME_TYPE(bool, decltype(std::declval<const month_weekday_last>().ok()));
36
37 static_assert(!month_weekday_last{month{}, lastTuesday}.ok(), ""); // Bad month
38 static_assert(!month_weekday_last{January, weekday_last{weekday{12}}}.ok(), ""); // Bad month
39 static_assert( month_weekday_last{January, lastTuesday}.ok(), ""); // Both OK
40
41 for (unsigned i = 0; i <= 50; ++i)
42 {
43 month_weekday_last mwdl{month{i}, lastTuesday};
44 assert( mwdl.ok() == month{i}.ok());
45 }
46
47 for (unsigned i = 0; i <= 50; ++i)
48 {
49 month_weekday_last mwdl{January, weekday_last{weekday{i}}};
50 assert( mwdl.ok() == weekday_last{weekday{i}}.ok());
51 }
52
53 return 0;
54}
55

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