pnl@hpfinote.HP.COM (Peter Lim) (05/06/90)
I'm having a bit of problem with time in C. Consider the following
program fragment.
#include <time.h>
struct tm the_time;
long time_in_long;
/* To convert time_in_long to the_time, I use .... */
the_time = localtime (&time_in_long);
/* To convert the_time to time_in_long, what do I do ?? */
time_in_long = XXXXXX (&the_time);
I found that in Microsoft or Zortech C, XXXXXX() is mktime(); but
I need to move the program to a UNIX environment which doesn't have
mktime(). So, I'm stuck.
Anybody know which library function works the same as mktime(),
or have some C code to replace the function ??
My UNIX manual says that time_in_long should store the value of the
time in seconds from 00:00:00 January 1, 1970. If this help ?
Regards, ## Life is fast enough as it is ........
Peter Lim. ## .... DON'T PUSH IT !! >>>-------,
########################################### :
E-mail: plim@hpsgwg.HP.COM Snail-mail: Hewlett Packard Singapore, :
Tel: (065)-279-2289 (ICDS, ICS) |
Telnet: 520-2289 1150 Depot Road, __\@/__
... also at: pnl@hpfipnl.HP.COM Singapore 0410. SPLAT !henry@utzoo.uucp (Henry Spencer) (05/08/90)
In article <15080011@hpfinote.HP.COM> pnl@hpfinote.HP.COM (Peter Lim) writes: >I found that in Microsoft or Zortech C, XXXXXX() is mktime(); but >I need to move the program to a UNIX environment which doesn't have >mktime(). So, I'm stuck. > >Anybody know which library function works the same as mktime(), >or have some C code to replace the function ?? mktime() is the ANSI C library function for this job. On old systems, including most current Unixes, there simply isn't one. -- If OSI is the answer, what is | Henry Spencer at U of Toronto Zoology the question?? -Rolf Nordhagen| uunet!attcan!utzoo!henry henry@zoo.toronto.edu