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 weekday;
12
13 // constexpr weekday_indexed operator[](unsigned index) const noexcept;
14 // constexpr weekday_last operator[](last_spec) const noexcept;
15
16
17 #include <chrono>
18 #include <type_traits>
19 #include <cassert>
20
21 #include "test_macros.h"
22 #include "../../euclidian.h"
23
main(int,char **)24 int main(int, char**)
25 {
26 using weekday = std::chrono::weekday;
27 using weekday_last = std::chrono::weekday_last;
28 using weekday_indexed = std::chrono::weekday_indexed;
29
30 constexpr weekday Sunday = std::chrono::Sunday;
31
32 ASSERT_NOEXCEPT( std::declval<weekday>()[1U]);
33 ASSERT_SAME_TYPE(weekday_indexed, decltype(std::declval<weekday>()[1U]));
34
35 ASSERT_NOEXCEPT( std::declval<weekday>()[std::chrono::last]);
36 ASSERT_SAME_TYPE(weekday_last, decltype(std::declval<weekday>()[std::chrono::last]));
37
38 static_assert(Sunday[2].weekday() == Sunday, "");
39 static_assert(Sunday[2].index () == 2, "");
40
41 for (unsigned i = 0; i <= 6; ++i)
42 {
43 weekday wd(i);
44 weekday_last wdl = wd[std::chrono::last];
45 assert(wdl.weekday() == wd);
46 assert(wdl.ok());
47 }
48
49 for (unsigned i = 0; i <= 6; ++i)
50 for (unsigned j = 1; j <= 5; ++j)
51 {
52 weekday wd(i);
53 weekday_indexed wdi = wd[j];
54 assert(wdi.weekday() == wd);
55 assert(wdi.index() == j);
56 assert(wdi.ok());
57 }
58
59 return 0;
60 }
61