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_day;
12
13 // constexpr month_day
14 // operator/(const month& m, const day& d) noexcept;
15 // Returns: {m, d}.
16 //
17 // constexpr month_day
18 // operator/(const day& d, const month& m) noexcept;
19 // Returns: m / d.
20
21 // constexpr month_day
22 // operator/(const month& m, int d) noexcept;
23 // Returns: m / day(d).
24 //
25 // constexpr month_day
26 // operator/(int m, const day& d) noexcept;
27 // Returns: month(m) / d.
28 //
29 // constexpr month_day
30 // operator/(const day& d, int m) noexcept;
31 // Returns: month(m) / d.
32
33
34 #include <chrono>
35 #include <type_traits>
36 #include <cassert>
37
38 #include "test_macros.h"
39
main(int,char **)40 int main(int, char**)
41 {
42 using month_day = std::chrono::month_day;
43 using month = std::chrono::month;
44 using day = std::chrono::day;
45
46 constexpr month February = std::chrono::February;
47
48 { // operator/(const month& m, const day& d) (and switched)
49 ASSERT_NOEXCEPT ( February/day{1});
50 ASSERT_SAME_TYPE(month_day, decltype(February/day{1}));
51 ASSERT_NOEXCEPT ( day{1}/February);
52 ASSERT_SAME_TYPE(month_day, decltype(day{1}/February));
53
54 for (int i = 1; i <= 12; ++i)
55 for (unsigned j = 0; j <= 30; ++j)
56 {
57 month m(i);
58 day d{j};
59 month_day md1 = m/d;
60 month_day md2 = d/m;
61 assert(md1.month() == m);
62 assert(md1.day() == d);
63 assert(md2.month() == m);
64 assert(md2.day() == d);
65 assert(md1 == md2);
66 }
67 }
68
69
70 { // operator/(const month& m, int d) (NOT switched)
71 ASSERT_NOEXCEPT ( February/2);
72 ASSERT_SAME_TYPE(month_day, decltype(February/2));
73
74 for (int i = 1; i <= 12; ++i)
75 for (unsigned j = 0; j <= 30; ++j)
76 {
77 month m(i);
78 day d(j);
79 month_day md1 = m/j;
80 assert(md1.month() == m);
81 assert(md1.day() == d);
82 }
83 }
84
85
86 { // operator/(const day& d, int m) (and switched)
87 ASSERT_NOEXCEPT ( day{2}/2);
88 ASSERT_SAME_TYPE(month_day, decltype(day{2}/2));
89 ASSERT_NOEXCEPT ( 2/day{2});
90 ASSERT_SAME_TYPE(month_day, decltype(2/day{2}));
91
92 for (int i = 1; i <= 12; ++i)
93 for (unsigned j = 0; j <= 30; ++j)
94 {
95 month m(i);
96 day d(j);
97 month_day md1 = d/i;
98 month_day md2 = i/d;
99 assert(md1.month() == m);
100 assert(md1.day() == d);
101 assert(md2.month() == m);
102 assert(md2.day() == d);
103 assert(md1 == md2);
104 }
105 }
106
107 return 0;
108 }
109