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
|
#include <iostream>
#include "../datetime"
using namespace std;
using namespace FBB;
void show(DateTime const &dt, char const *label)
{
cout <<
label << ": " << dt << "\n"
" dst: " << dt.dst() << "\n"
" hh:mm:ss: " << dt.hours() << ':' << dt.minutes() << ':' <<
dt.seconds() << "\n"
" year-month-monthdaynr: " << dt.year() << '-' <<
dt.month() << '-' << dt.monthDayNr() << "\n"
" weekday/weeknr/yearday/yeardaynr: " <<
dt.weekday() << '/' << dt.weekNr() << '/' <<
dt.yearDay() << '/' << dt.yearDayNr() << "\n"
"\n";
}
int main()
{
time_t now = time(0);
DateTime utc{ now, DateTime::UTC };
cout << "1: current UTC: " << utc << "\n\n";
utc += tm{ 0, 0, 2, 1 };
cout << "2: utc the next day, 2 hrs later: " << utc << "\n\n";
DateTime dt{ now, DateTime::LOCALTIME };
cout << "3: current local time: " << dt << ", zone shift: " <<
dt.zone().seconds() << " seconds\n\n";
dt.setSeconds(0);
cout << "4: local time, 0 seconds: " << dt << "\n\n";
dt += tm{ 0, 0, 2 };
cout << "5a: local time, 2 hrs later: " << dt << "\n\n";
dt += tm{ 0, 0, 2, 1 };
cout << "5: local time, next day, 2 hrs later: " << dt << "\n\n";
dt += chrono::hours(1);
cout << "6: local time: add another hour: " << dt << "\n\n";
utc.setFields(
tm{ 0, 0, 8, 1 },
DateTime::SECONDS |
DateTime::HOURS |
DateTime::MONTHDAY
);
show(utc, "7: utc, 1st of the month, 8 hrs, 0 sec.");
cout << "---------------\n";
DateTime dt1{ now, DateTime::LOCALTIME };
cout << "8: current local time: " << dt1 << "\n\n";
dt1.setFields(
tm{ 0, 0, 8, 1 },
DateTime::SECONDS |
DateTime::HOURS |
DateTime::MONTHDAY
);
show(dt1, "9: local time for 1st of the month, 8 hrs, zero seconds");
DateTime dt2{ now, DateTime::LOCALTIME };
dt2.setDay(dt2.monthDayNr() - 7);
show(dt2, "10: current local time, one week ago");
}
|
