usr/src/usr.bin/pascal/libpc/PFLUSH.c

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

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

#include "h00vars.h"

/*
 * insure that a usable image is in the buffer window
 */
PFLUSH()
{
        register struct iorec   *next;

        for (next = _fchain.fchain; next != FILNIL; next = next->fchain) {
                if ((next->funit & (FDEF | FREAD)) != 0)
                        continue;
                if (next->fbuf != 0)
                        fflush(next->fbuf);
        }
}