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;
12
13// constexpr bool ok() const noexcept;
14// Returns: m_.ok() && wdi_.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_weekday = std::chrono::month_weekday;
26 using month = std::chrono::month;
27 using weekday = std::chrono::weekday;
28 using weekday_indexed = std::chrono::weekday_indexed;
29
30 constexpr weekday Sunday = std::chrono::Sunday;
31
32 ASSERT_NOEXCEPT( std::declval<const month_weekday>().ok());
33 ASSERT_SAME_TYPE(bool, decltype(std::declval<const month_weekday>().ok()));
34
35 static_assert(!month_weekday{month{}, weekday_indexed{}}.ok(), "");
36 static_assert( month_weekday{std::chrono::May, weekday_indexed{Sunday, 2}}.ok(), "");
37
38 assert(!(month_weekday(std::chrono::April, weekday_indexed{Sunday, 0}).ok()));
39 assert( (month_weekday{std::chrono::March, weekday_indexed{Sunday, 1}}.ok()));
40
41 for (unsigned i = 1; i <= 12; ++i)
42 for (unsigned j = 0; j <= 6; ++j)
43 {
44 month_weekday mwd{month{i}, weekday_indexed{Sunday, j}};
45 assert(mwd.ok() == (j >= 1 && j <= 5));
46 }
47
48 // If the month is not ok, all the weekday_indexed are bad
49 for (unsigned i = 1; i <= 10; ++i)
50 assert(!(month_weekday{month{13}, weekday_indexed{Sunday, i}}.ok()));
51
52 return 0;
53}
54

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