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_day;
13
14 // constexpr bool operator==(const year_month_day& x, const year_month_day& y) noexcept;
15 // Returns: x.year() == y.year() && x.month() == y.month().
16 //
17 // constexpr bool operator< (const year_month_day& x, const year_month_day& y) noexcept;
18 // Returns:
19 // If x.year() < y.year() returns true.
20 // Otherwise, if x.year() > y.year() returns false.
21 // Otherwise, if x.month() < y.month() returns true.
22 // Otherwise, if x.month() > y.month() returns false.
23 // Otherwise, returns x.day() < y.day()
24
25
26 #include <chrono>
27 #include <type_traits>
28 #include <cassert>
29
30 #include "test_macros.h"
31 #include "test_comparisons.h"
32
main()33 int main()
34 {
35 using day = std::chrono::day;
36 using year = std::chrono::year;
37 using month = std::chrono::month;
38 using year_month_day = std::chrono::year_month_day;
39
40 AssertComparisons6AreNoexcept<year_month_day>();
41 AssertComparisons6ReturnBool<year_month_day>();
42
43 constexpr month January = std::chrono::January;
44 constexpr month February = std::chrono::February;
45
46 static_assert( testComparisons6(
47 year_month_day{year{1234}, January, day{1}},
48 year_month_day{year{1234}, January, day{1}},
49 true, false), "");
50
51 // different day
52 static_assert( testComparisons6(
53 year_month_day{year{1234}, January, day{1}},
54 year_month_day{year{1234}, January, day{2}},
55 false, true), "");
56
57 // different month
58 static_assert( testComparisons6(
59 year_month_day{year{1234}, January, day{1}},
60 year_month_day{year{1234}, February, day{1}},
61 false, true), "");
62
63 // different year
64 static_assert( testComparisons6(
65 year_month_day{year{1234}, January, day{1}},
66 year_month_day{year{1235}, January, day{1}},
67 false, true), "");
68
69
70 // different month and day
71 static_assert( testComparisons6(
72 year_month_day{year{1234}, January, day{2}},
73 year_month_day{year{1234}, February, day{1}},
74 false, true), "");
75
76 // different year and month
77 static_assert( testComparisons6(
78 year_month_day{year{1234}, February, day{1}},
79 year_month_day{year{1235}, January, day{1}},
80 false, true), "");
81
82 // different year and day
83 static_assert( testComparisons6(
84 year_month_day{year{1234}, January, day{2}},
85 year_month_day{year{1235}, January, day{1}},
86 false, true), "");
87
88 // different year, month and day
89 static_assert( testComparisons6(
90 year_month_day{year{1234}, February, day{2}},
91 year_month_day{year{1235}, January, day{1}},
92 false, true), "");
93
94
95 // same year, different days
96 for (unsigned i = 1; i < 28; ++i)
97 for (unsigned j = 1; j < 28; ++j)
98 assert((testComparisons6(
99 year_month_day{year{1234}, January, day{i}},
100 year_month_day{year{1234}, January, day{j}},
101 i == j, i < j )));
102
103 // same year, different months
104 for (unsigned i = 1; i < 12; ++i)
105 for (unsigned j = 1; j < 12; ++j)
106 assert((testComparisons6(
107 year_month_day{year{1234}, month{i}, day{12}},
108 year_month_day{year{1234}, month{j}, day{12}},
109 i == j, i < j )));
110
111 // same month, different years
112 for (int i = 1000; i < 20; ++i)
113 for (int j = 1000; j < 20; ++j)
114 assert((testComparisons6(
115 year_month_day{year{i}, January, day{12}},
116 year_month_day{year{j}, January, day{12}},
117 i == j, i < j )));
118 }
119