date and time created 80/10/31 14:39:48 by mckusick

[unix-history] / usr / src / usr.bin / pascal / libpc / NIL.c

/* Copyright (c) 1979 Regents of the University of California */

static char sccsid[] = "@(#)NIL.c 1.1 %G%";

#include "h00vars.h"
#include "h01errs.h"

char *
NIL(ptr)

       char    *ptr;           /* pointer to struct */
{
       if (ptr > _maxptr || ptr < _minptr) {
               ERROR(ENILPTR, 0);
               return;
       }
       return ptr;
}