1 //===----------------------------------------------------------------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 // UNSUPPORTED: c++98, c++03, c++11, c++14, c++17
10
11 // <chrono>
12 // class year_month;
13
14 // constexpr year_month operator/(const year& y, const month& m) noexcept;
15 // Returns: {y, m}.
16 //
17 // constexpr year_month operator/(const year& y, int m) noexcept;
18 // Returns: y / month(m).
19
20
21
22 #include <chrono>
23 #include <type_traits>
24 #include <cassert>
25
26 #include "test_macros.h"
27 #include "test_comparisons.h"
28
main()29 int main()
30 {
31 using month = std::chrono::month;
32 using year = std::chrono::year;
33 using year_month = std::chrono::year_month;
34
35 constexpr month February = std::chrono::February;
36
37 { // operator/(const year& y, const month& m)
38 ASSERT_NOEXCEPT ( year{2018}/February);
39 ASSERT_SAME_TYPE(year_month, decltype(year{2018}/February));
40
41 static_assert((year{2018}/February).year() == year{2018}, "");
42 static_assert((year{2018}/February).month() == month{2}, "");
43 for (int i = 1000; i <= 1030; ++i)
44 for (unsigned j = 1; j <= 12; ++j)
45 {
46 year_month ym = year{i}/month{j};
47 assert(static_cast<int>(ym.year()) == i);
48 assert(static_cast<unsigned>(ym.month()) == j);
49 }
50 }
51
52
53 { // operator/(const year& y, const int m)
54 ASSERT_NOEXCEPT ( year{2018}/4);
55 ASSERT_SAME_TYPE(year_month, decltype(year{2018}/4));
56
57 static_assert((year{2018}/2).year() == year{2018}, "");
58 static_assert((year{2018}/2).month() == month{2}, "");
59
60 for (int i = 1000; i <= 1030; ++i)
61 for (unsigned j = 1; j <= 12; ++j)
62 {
63 year_month ym = year{i}/j;
64 assert(static_cast<int>(ym.year()) == i);
65 assert(static_cast<unsigned>(ym.month()) == j);
66 }
67 }
68 }
69