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 #include "test_comparisons.h"
27
main(int,char **)28 int main(int, char**)
29 {
30 using month = std::chrono::month;
31 using year = std::chrono::year;
32 using year_month = std::chrono::year_month;
33
34 constexpr month February = std::chrono::February;
35
36 { // operator/(const year& y, const month& m)
37 ASSERT_NOEXCEPT ( year{2018}/February);
38 ASSERT_SAME_TYPE(year_month, decltype(year{2018}/February));
39
40 static_assert((year{2018}/February).year() == year{2018}, "");
41 static_assert((year{2018}/February).month() == month{2}, "");
42 for (int i = 1000; i <= 1030; ++i)
43 for (unsigned j = 1; j <= 12; ++j)
44 {
45 year_month ym = year{i}/month{j};
46 assert(static_cast<int>(ym.year()) == i);
47 assert(static_cast<unsigned>(ym.month()) == j);
48 }
49 }
50
51
52 { // operator/(const year& y, const int m)
53 ASSERT_NOEXCEPT ( year{2018}/4);
54 ASSERT_SAME_TYPE(year_month, decltype(year{2018}/4));
55
56 static_assert((year{2018}/2).year() == year{2018}, "");
57 static_assert((year{2018}/2).month() == month{2}, "");
58
59 for (int i = 1000; i <= 1030; ++i)
60 for (unsigned j = 1; j <= 12; ++j)
61 {
62 year_month ym = year{i}/j;
63 assert(static_cast<int>(ym.year()) == i);
64 assert(static_cast<unsigned>(ym.month()) == j);
65 }
66 }
67
68 return 0;
69 }
70