blob: 7e84b37ab3bf7b07c065acff910a177a9d7c62db (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++98, c++03, c++11, c++14, c++17
// <chrono>
// class year_month;
// constexpr bool ok() const noexcept;
// Returns: m_.ok() && y_.ok().
#include <chrono>
#include <type_traits>
#include <cassert>
#include "test_macros.h"
int main()
{
using month = std::chrono::month;
using year = std::chrono::year;
using year_month = std::chrono::year_month;
constexpr month January = std::chrono::January;
ASSERT_NOEXCEPT( std::declval<const year_month>().ok());
ASSERT_SAME_TYPE(bool, decltype(std::declval<const year_month>().ok()));
static_assert(!year_month{year{-32768}, January}.ok(), ""); // Bad year
static_assert(!year_month{year{2019}, month{}}.ok(), ""); // Bad month
static_assert( year_month{year{2019}, January}.ok(), ""); // Both OK
for (unsigned i = 0; i <= 50; ++i)
{
year_month ym{year{2019}, month{i}};
assert( ym.ok() == month{i}.ok());
}
const int ymax = static_cast<int>(year::max());
for (int i = ymax - 100; i <= ymax + 100; ++i)
{
year_month ym{year{i}, January};
assert( ym.ok() == year{i}.ok());
}
}
|
