/*-
 * LstAtFront.c --
 *	Add a node at the front of the list
 *
 * Copyright (c) 1988 by the Regents of the University of California
 *
 * Permission to use, copy, modify, and distribute this
 * software and its documentation for any purpose and without
 * fee is hereby granted, provided that the above copyright
 * notice appears in all copies.  Neither the University of California nor
 * Adam de Boor makes any representations about the suitability of this
 * software for any purpose.  It is provided "as is" without
 * express or implied warranty.
 *
 */
#ifndef lint
static char *rcsid =
"$Id: lstAtFront.c,v 1.3 88/11/17 20:51:51 adam Exp $ SPRITE (Berkeley)";
#endif lint

#include	"lstInt.h"

/*-
 *-----------------------------------------------------------------------
 * Lst_AtFront --
 *	Place a piece of data at the front of a list
 *
 * Results:
 *	SUCCESS or FAILURE
 *
 * Side Effects:
 *	A new ListNode is created and stuck at the front of the list.
 *	hence, firstPtr (and possible lastPtr) in the list are altered.
 *
 *-----------------------------------------------------------------------
 */
ReturnStatus
Lst_AtFront (l, d)
    Lst		l;
    ClientData	d;
{
    register LstNode	front;
    
    front = Lst_First (l);
    return (Lst_Insert (l, front, d));
}