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 month_day;
13
14 // constexpr bool operator==(const month_day& x, const month_day& y) noexcept;
15 // Returns: x.month() == y.month() && x.day() == y.day().
16 //
17 // constexpr bool operator< (const month_day& x, const month_day& y) noexcept;
18 // Returns:
19 // If x.month() < y.month() returns true.
20 // Otherwise, if x.month() > y.month() returns false.
21 // Otherwise, returns x.day() < y.day().
22
23 #include <chrono>
24 #include <type_traits>
25 #include <cassert>
26
27 #include "test_macros.h"
28 #include "test_comparisons.h"
29
main()30 int main()
31 {
32 using day = std::chrono::day;
33 using month = std::chrono::month;
34 using month_day = std::chrono::month_day;
35
36 AssertComparisons6AreNoexcept<month_day>();
37 AssertComparisons6ReturnBool<month_day>();
38
39 static_assert( testComparisons6(
40 month_day{std::chrono::January, day{1}},
41 month_day{std::chrono::January, day{1}},
42 true, false), "");
43
44 static_assert( testComparisons6(
45 month_day{std::chrono::January, day{1}},
46 month_day{std::chrono::January, day{2}},
47 false, true), "");
48
49 static_assert( testComparisons6(
50 month_day{std::chrono::January, day{1}},
51 month_day{std::chrono::February, day{1}},
52 false, true), "");
53
54 // same day, different months
55 for (unsigned i = 1; i < 12; ++i)
56 for (unsigned j = 1; j < 12; ++j)
57 assert((testComparisons6(
58 month_day{month{i}, day{1}},
59 month_day{month{j}, day{1}},
60 i == j, i < j )));
61
62 // same month, different days
63 for (unsigned i = 1; i < 31; ++i)
64 for (unsigned j = 1; j < 31; ++j)
65 assert((testComparisons6(
66 month_day{month{2}, day{i}},
67 month_day{month{2}, day{j}},
68 i == j, i < j )));
69
70 }
71