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_indexed;
12
13// constexpr unsigned index() const noexcept;
14// Returns: index_
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 weekday = std::chrono::weekday;
26 using weekday_indexed = std::chrono::weekday_indexed;
27
28 ASSERT_NOEXCEPT( std::declval<const weekday_indexed>().index());
29 ASSERT_SAME_TYPE(unsigned, decltype(std::declval<const weekday_indexed>().index()));
30
31 static_assert( weekday_indexed{}.index() == 0, "");
32
33 // This is the valid range of values defined in [time.cal.wdidx.members]/1.
34 for (unsigned i = 0; i <= 7; ++i)
35 {
36 weekday_indexed wdi(weekday{2}, i);
37 assert( static_cast<unsigned>(wdi.index()) == i);
38 }
39
40 return 0;
41}
42

source code of libcxx/test/std/time/time.cal/time.cal.wdidx/time.cal.wdidx.members/index.pass.cpp