dbug/example2.c

int debug = 0;

main (argc, argv)
int argc;
char *argv[];
{
    /* printf ("argv = %x\n", argv) */
    if (debug) printf ("argv[0] = %d\n", argv[0]);
    /*
     *	Rest of program
     */
#ifdef DEBUG
    printf ("== done ==\n");
#endif
}