date and time created 91/04/16 14:59:05 by bostic

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

/*-
* Copyright (c) 1979 The Regents of the University of California.
* All rights reserved.
*
* %sccs.include.redist.c%
*/

#ifndef lint
static char sccsid[] = "@(#)UNIT.c      1.3 (Berkeley) %G%";
#endif /* not lint */

#include "h00vars.h"

struct iorec *
UNIT(curfile)

       register struct iorec   *curfile;
{
       if (curfile->fblk >= MAXFILES || _actfile[curfile->fblk] != curfile) {
               ERROR("Reference to an inactive file\n", 0);
               return;
       }
       if (curfile->funit & FDEF) {
               ERROR("%s: Reference to an inactive file\n", curfile->pfname);
               return;
       }
       return curfile;
}