1 //===----------------------------------------------------------------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 // UNSUPPORTED: c++98, c++03, c++11, c++14, c++17
10
11 // <chrono>
12 // class year_month_weekday;
13
14 // constexpr bool ok() const noexcept;
15 // Returns: m_.ok() && y_.ok().
16
17 #include <chrono>
18 #include <type_traits>
19 #include <cassert>
20
21 #include "test_macros.h"
22
main()23 int main()
24 {
25 using year = std::chrono::year;
26 using month = std::chrono::month;
27 using weekday = std::chrono::weekday;
28 using weekday_indexed = std::chrono::weekday_indexed;
29 using year_month_weekday = std::chrono::year_month_weekday;
30
31 constexpr month January = std::chrono::January;
32 constexpr weekday Tuesday = std::chrono::Tuesday;
33
34 ASSERT_NOEXCEPT( std::declval<const year_month_weekday>().ok());
35 ASSERT_SAME_TYPE(bool, decltype(std::declval<const year_month_weekday>().ok()));
36
37 static_assert(!year_month_weekday{}.ok(), "");
38
39 static_assert(!year_month_weekday{year{-32768}, month{}, weekday_indexed{}}.ok(), ""); // All three bad
40
41 static_assert(!year_month_weekday{year{-32768}, January, weekday_indexed{Tuesday, 1}}.ok(), ""); // Bad year
42 static_assert(!year_month_weekday{year{2019}, month{}, weekday_indexed{Tuesday, 1}}.ok(), ""); // Bad month
43 static_assert(!year_month_weekday{year{2019}, January, weekday_indexed{} }.ok(), ""); // Bad day
44
45 static_assert(!year_month_weekday{year{-32768}, month{}, weekday_indexed{Tuesday, 1}}.ok(), ""); // Bad year & month
46 static_assert(!year_month_weekday{year{2019}, month{}, weekday_indexed{} }.ok(), ""); // Bad month & day
47 static_assert(!year_month_weekday{year{-32768}, January, weekday_indexed{} }.ok(), ""); // Bad year & day
48
49 static_assert( year_month_weekday{year{2019}, January, weekday_indexed{Tuesday, 1}}.ok(), ""); // All OK
50
51 for (unsigned i = 0; i <= 50; ++i)
52 {
53 year_month_weekday ym{year{2019}, January, weekday_indexed{Tuesday, i}};
54 assert((ym.ok() == weekday_indexed{Tuesday, i}.ok()));
55 }
56
57 for (unsigned i = 0; i <= 50; ++i)
58 {
59 year_month_weekday ym{year{2019}, January, weekday_indexed{weekday{i}, 1}};
60 assert((ym.ok() == weekday_indexed{weekday{i}, 1}.ok()));
61 }
62
63 for (unsigned i = 0; i <= 50; ++i)
64 {
65 year_month_weekday ym{year{2019}, month{i}, weekday_indexed{Tuesday, 1}};
66 assert((ym.ok() == month{i}.ok()));
67 }
68
69 const int ymax = static_cast<int>(year::max());
70 for (int i = ymax - 100; i <= ymax + 100; ++i)
71 {
72 year_month_weekday ym{year{i}, January, weekday_indexed{Tuesday, 1}};
73 assert((ym.ok() == year{i}.ok()));
74 }
75 }
76