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 year_month;
12
13 // constexpr year_month operator/(const year& y, const month& m) noexcept;
14 // Returns: {y, m}.
15 //
16 // constexpr year_month operator/(const year& y, int m) noexcept;
17 // Returns: y / month(m).
18
19
20
21 #include <chrono>
22 #include <type_traits>
23 #include <cassert>
24
25 #include "test_macros.h"
26
main(int,char **)27 int main(int, char**)
28 {
29 using month = std::chrono::month;
30 using year = std::chrono::year;
31 using year_month = std::chrono::year_month;
32
33 constexpr month February = std::chrono::February;
34
35 { // operator/(const year& y, const month& m)
36 ASSERT_NOEXCEPT ( year{2018}/February);
37 ASSERT_SAME_TYPE(year_month, decltype(year{2018}/February));
38
39 static_assert((year{2018}/February).year() == year{2018}, "");
40 static_assert((year{2018}/February).month() == month{2}, "");
41 for (int i = 1000; i <= 1030; ++i)
42 for (unsigned j = 1; j <= 12; ++j)
43 {
44 year_month ym = year{i}/month{j};
45 assert(static_cast<int>(ym.year()) == i);
46 assert(static_cast<unsigned>(ym.month()) == j);
47 }
48 }
49
50
51 { // operator/(const year& y, const int m)
52 ASSERT_NOEXCEPT ( year{2018}/4);
53 ASSERT_SAME_TYPE(year_month, decltype(year{2018}/4));
54
55 static_assert((year{2018}/2).year() == year{2018}, "");
56 static_assert((year{2018}/2).month() == month{2}, "");
57
58 for (int i = 1000; i <= 1030; ++i)
59 for (unsigned j = 1; j <= 12; ++j)
60 {
61 year_month ym = year{i}/j;
62 assert(static_cast<int>(ym.year()) == i);
63 assert(static_cast<unsigned>(ym.month()) == j);
64 }
65 }
66
67 return 0;
68 }
69