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 month;
12
13// constexpr bool ok() const noexcept;
14// Returns: 1 <= d_ && d_ <= 12
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 month = std::chrono::month;
26
27 ASSERT_NOEXCEPT( std::declval<const month>().ok());
28 ASSERT_SAME_TYPE(bool, decltype(std::declval<const month>().ok()));
29
30 static_assert(!month{0}.ok(), "");
31 static_assert( month{1}.ok(), "");
32
33 assert(!month{0}.ok());
34 for (unsigned i = 1; i <= 12; ++i)
35 assert(month{i}.ok());
36 for (unsigned i = 13; i <= 255; ++i)
37 assert(!month{i}.ok());
38
39 return 0;
40}
41

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