Unix timestamp in C++

cherrio

Is it possible to get the unix time in C++?

I am trying to generate IDs and I usually just use the number of seconds since the epoch, but can't figure out how to do it in C++?

Any one know?

Typedef

#include <time.h>


time_t time_var.

or man time.

rob1891

from cplusplus.com:

time
<time.h>
cplusplus.com
time_t time ( time_t * timer );

Get current time.
Get the number of seconds elapsed since 00:00 hours, Jan 1, 1970 UTC from the system clock.


Parameters.

timer
Location where to store the retrieved value. If this is NULL the value is not stored. But it is still returned by the function.
time_t is generally defined by default to long.

Return Value.
Elapsed time in seconds, as described.

Portability.
Defined in ANSI-C.

Example.

/* time example */
#include <stdio.h>
#include <time.h>

int main ()
{
time_t seconds;

seconds = time (NULL);
printf ("%ld hours since January 1, 1970", seconds/3600);

return 0;
}

Output:
266344 hours since January 1, 1970

See also.
asctime, gmtime, localtime

cherrio

Excellent, that worked perfect. Thanks.