usr/src/usr.bin/make/lst.lib/lstReplace.c

/*
 * Copyright (c) 1988, 1989, 1990, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Adam de Boor.
 *
 * %sccs.include.redist.c%
 */

#ifndef lint
static char sccsid[] = "@(#)lstReplace.c        8.2 (Berkeley) %G%";
#endif /* not lint */

/*-
 * LstReplace.c --
 *      Replace the datum in a node with a new datum
 */

#include        "lstInt.h"

/*-
 *-----------------------------------------------------------------------
 * Lst_Replace --
 *      Replace the datum in the given node with the new datum
 *
 * Results:
 *      SUCCESS or FAILURE.
 *
 * Side Effects:
 *      The datum field fo the node is altered.
 *
 *-----------------------------------------------------------------------
 */
ReturnStatus
Lst_Replace (ln, d)
    register LstNode    ln;
    ClientData          d;
{
    if (ln == NILLNODE) {
        return (FAILURE);
    } else {
        ((ListNode) ln)->datum = d;
        return (SUCCESS);
    }
}