As you will see in the following function, we have a global struct pointer "g" and it has an element dbAcctNum which is a char array.

/* Pad Account number with Leading Zeroes */

 void put_leading_zeroes(short j)
 {
   char save[50];
   short i;

   //Save Current String
   memset(save, ' ',sizeof(save));
   memcpy(save,&g->dbAcctNum,sizeof(save));

   // Put Leading zeroes
   memset(&g->dbAcctNum, ' ',sizeof(g->dbAcctNum));
   for(i=0; i<(MAX_ACCOUNT_LEN - j); i++)
   {
     g->dbAcctNum[i] = '0';
   }
   memcpy(&g->dbAcctNum[i], save, j);
 }