removed code without effect
time_t represents the number of seconds since the birth of unix.
to deal with microseconds and friends, use
a) gettimeofday
b) struct timeval
/**
* counter.c
* Copyright (C) 2008 Markus Broeker
*/
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
int main (int argc, char **argv)
{
time_t t;
struct tm *time_str;
int start, end;
if (argc != 2) {
printf ("Usage: %s \"<command>\"\n", argv[0]);
return EXIT_FAILURE;
}
time (&t);
time_str = gmtime (&t);
start = time_str->tm_hour * 60 * 60 + time_str->tm_min * 60 + time_str->tm_sec;
if (system (argv[1]) == -1) {
return EXIT_FAILURE;
}
time (&t);
time_str = gmtime (&t);
end = time_str->tm_hour * 60 * 60 + time_str->tm_min * 60 + time_str->tm_sec;
printf ("Command Execution Time: %8ds\n", end - start);
return EXIT_SUCCESS;
}