#include <stdio.h>

#include <time.h>

​

void getSeconds(unsigned long *par);

​

int main () {

​

   unsigned long sec;

   getSeconds( &sec );

​

   /* print the actual value */

   printf("Number of seconds: %ld\n", sec );

​

   return 0;

}

​

void getSeconds(unsigned long *par) {

   /* get the current number of seconds */

   *par = time( NULL );

   return;

}