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 <cassert>
19#include <type_traits>
20#include <utility>
21
22#include "test_macros.h"
23#include "../../euclidian.h"
24
25int main(int, char**)
26{
27 using weekday = std::chrono::weekday;
28 using weekday_last = std::chrono::weekday_last;
29 using weekday_indexed = std::chrono::weekday_indexed;
30
31 constexpr weekday Sunday = std::chrono::Sunday;
32
33 ASSERT_NOEXCEPT( std::declval<weekday>()[1U]);
34 ASSERT_SAME_TYPE(weekday_indexed, decltype(std::declval<weekday>()[1U]));
35
36 ASSERT_NOEXCEPT( std::declval<weekday>()[std::chrono::last]);
37 ASSERT_SAME_TYPE(weekday_last, decltype(std::declval<weekday>()[std::chrono::last]));
38
39 static_assert(Sunday[2].weekday() == Sunday, "");
40 static_assert(Sunday[2].index () == 2, "");
41
42 for (unsigned i = 0; i <= 6; ++i)
43 {
44 weekday wd(i);
45 weekday_last wdl = wd[std::chrono::last];
46 assert(wdl.weekday() == wd);
47 assert(wdl.ok());
48 }
49
50 for (unsigned i = 0; i <= 6; ++i)
51 for (unsigned j = 1; j <= 5; ++j)
52 {
53 weekday wd(i);
54 weekday_indexed wdi = wd[j];
55 assert(wdi.weekday() == wd);
56 assert(wdi.index() == j);
57 assert(wdi.ok());
58 }
59
60 return 0;
61}
62

source code of libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/subscript_operator.pass.cpp