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 year_month_day_last;
12
13// constexpr bool ok() const noexcept;
14// Returns: m_.ok() && y_.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 year = std::chrono::year;
26 using month = std::chrono::month;
27 using month_day_last = std::chrono::month_day_last;
28 using year_month_day_last = std::chrono::year_month_day_last;
29
30 constexpr month January = std::chrono::January;
31
32 ASSERT_NOEXCEPT( std::declval<const year_month_day_last>().ok());
33 ASSERT_SAME_TYPE(bool, decltype(std::declval<const year_month_day_last>().ok()));
34
35 static_assert(!year_month_day_last{year{-32768}, month_day_last{month{}}}.ok(), ""); // both bad
36 static_assert(!year_month_day_last{year{-32768}, month_day_last{January}}.ok(), ""); // Bad year
37 static_assert(!year_month_day_last{year{2019}, month_day_last{month{}}}.ok(), ""); // Bad month
38 static_assert( year_month_day_last{year{2019}, month_day_last{January}}.ok(), ""); // All OK
39
40 for (unsigned i = 0; i <= 50; ++i)
41 {
42 year_month_day_last ym{year{2019}, month_day_last{month{i}}};
43 assert( ym.ok() == month{i}.ok());
44 }
45
46 const int ymax = static_cast<int>(year::max());
47 for (int i = ymax - 100; i <= ymax + 100; ++i)
48 {
49 year_month_day_last ym{year{i}, month_day_last{January}};
50 assert( ym.ok() == year{i}.ok());
51 }
52
53 return 0;
54}
55

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