1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14, c++17
// <chrono>
// class year_month_day_last;
// constexpr year_month_day_last
// operator/(const year_month& ym, last_spec) noexcept;
// Returns: {ym.year(), month_day_last{ym.month()}}.
// constexpr year_month_day_last
// operator/(const year& y, const month_day_last& mdl) noexcept;
// Returns: {y, mdl}.
//
// constexpr year_month_day_last
// operator/(int y, const month_day_last& mdl) noexcept;
// Returns: year(y) / mdl.
//
// constexpr year_month_day_last
// operator/(const month_day_last& mdl, const year& y) noexcept;
// Returns: y / mdl.
//
// constexpr year_month_day_last
// operator/(const month_day_last& mdl, int y) noexcept;
// Returns: year(y) / mdl.
#include <chrono>
#include <type_traits>
#include <cassert>
#include "test_macros.h"
int main(int, char**)
{
using day = std::chrono::day;
using month = std::chrono::month;
using year_month = std::chrono::year_month;
using year = std::chrono::year;
using month_day_last = std::chrono::month_day_last;
using year_month_day_last = std::chrono::year_month_day_last;
constexpr month February = std::chrono::February;
constexpr std::chrono::last_spec last = std::chrono::last;
{ // operator/(const year_month& ym, last_spec)
constexpr year_month Feb2018{year{2018}, February};
ASSERT_NOEXCEPT ( Feb2018/last);
ASSERT_SAME_TYPE(year_month_day_last, decltype(Feb2018/last));
static_assert((Feb2018/last).year() == year{2018}, "");
static_assert((Feb2018/last).month() == February, "");
for (int i = 1000; i < 1010; ++i)
for (unsigned j = 1; j <= 12; ++j)
{
year y{i};
month m{j};
year_month_day_last ymdl = year_month{y,m}/last;
assert(ymdl.year() == y);
assert(ymdl.month() == m);
}
}
{ // operator/(const year& y, const month_day_last& mdl) (and switched)
ASSERT_NOEXCEPT ( year{2018}/month_day_last{February});
ASSERT_SAME_TYPE(year_month_day_last, decltype(year{2018}/month_day_last{February}));
ASSERT_NOEXCEPT ( month_day_last{February}/year{2018});
ASSERT_SAME_TYPE(year_month_day_last, decltype(month_day_last{February}/year{2018}));
static_assert((year{2018}/month_day_last{February}).month() == February, "");
static_assert((year{2018}/month_day_last{February}).year() == year{2018}, "");
static_assert((month_day_last{February}/year{2018}).month() == February, "");
static_assert((month_day_last{February}/year{2018}).year() == year{2018}, "");
for (int i = 1000; i < 1010; ++i)
for (unsigned j = 1; j <= 12; ++j)
{
year y{i};
month m{j};
year_month_day_last ymdl1 = y/month_day_last{m};
year_month_day_last ymdl2 = month_day_last{m}/y;
assert(ymdl1.month() == m);
assert(ymdl2.month() == m);
assert(ymdl2.year() == y);
assert(ymdl1.year() == y);
assert(ymdl1 == ymdl2);
}
}
{ // operator/(int y, const month_day_last& mdl) (and switched)
ASSERT_NOEXCEPT ( 2018/month_day_last{February});
ASSERT_SAME_TYPE(year_month_day_last, decltype(2018/month_day_last{February}));
ASSERT_NOEXCEPT ( month_day_last{February}/2018);
ASSERT_SAME_TYPE(year_month_day_last, decltype(month_day_last{February}/2018));
static_assert((2018/month_day_last{February}).month() == February, "");
static_assert((2018/month_day_last{February}).year() == year{2018}, "");
static_assert((month_day_last{February}/2018).month() == February, "");
static_assert((month_day_last{February}/2018).year() == year{2018}, "");
for (int i = 1000; i < 1010; ++i)
for (unsigned j = 1; j <= 12; ++j)
{
year y{i};
month m{j};
year_month_day_last ymdl1 = i/month_day_last{m};
year_month_day_last ymdl2 = month_day_last{m}/i;
assert(ymdl1.month() == m);
assert(ymdl2.month() == m);
assert(ymdl2.year() == y);
assert(ymdl1.year() == y);
assert(ymdl1 == ymdl2);
}
}
// the result of year_month_day_last::day() is unspecified when !ok(),
// but it shouldn't crash.
{
year_month_day_last ymdl = year{2020}/month{13}/last;
assert(!ymdl.ok());
day d = ymdl.day(); (void)d; // doesn't crash
}
return 0;
}
|
