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 bool ok() const noexcept;
14// Returns: wd_ <= 6
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
27 ASSERT_NOEXCEPT( std::declval<const weekday>().ok());
28 ASSERT_SAME_TYPE(bool, decltype(std::declval<const weekday>().ok()));
29
30 static_assert( weekday{0}.ok(), "");
31 static_assert( weekday{1}.ok(), "");
32 static_assert( weekday{7}.ok(), ""); // 7 is transmogrified into 0 in the ctor
33 static_assert(!weekday{8}.ok(), "");
34
35 for (unsigned i = 0; i <= 7; ++i)
36 assert(weekday{i}.ok());
37 for (unsigned i = 8; i <= 255; ++i)
38 assert(!weekday{i}.ok());
39
40 return 0;
41}
42

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