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 weekday_indexed;
13
14 // constexpr bool ok() const noexcept;
15 // Returns: wd_.ok() && 1 <= index_ && index_ <= 5
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 weekday = std::chrono::weekday;
26 using weekday_indexed = std::chrono::weekday_indexed;
27
28 ASSERT_NOEXCEPT( std::declval<const weekday_indexed>().ok());
29 ASSERT_SAME_TYPE(bool, decltype(std::declval<const weekday_indexed>().ok()));
30
31 static_assert(!weekday_indexed{}.ok(), "");
32 static_assert( weekday_indexed{std::chrono::Sunday, 2}.ok(), "");
33
34 assert(!(weekday_indexed(std::chrono::Tuesday, 0).ok()));
35 for (unsigned i = 1; i <= 5; ++i)
36 {
37 weekday_indexed wdi(std::chrono::Tuesday, i);
38 assert( wdi.ok());
39 }
40
41 for (unsigned i = 6; i <= 20; ++i)
42 {
43 weekday_indexed wdi(std::chrono::Tuesday, i);
44 assert(!wdi.ok());
45 }
46
47 // Not a valid weekday
48 assert(!(weekday_indexed(weekday{9U}, 1).ok()));
49 }
50