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Initial revision

/*
 * Copyright (c) 1988, 1989, 1990 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Adam de Boor.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that: (1) source distributions retain this entire copyright
 * notice and comment, and (2) distributions including binaries display
 * the following acknowledgement:  ``This product includes software
 * developed by the University of California, Berkeley and its contributors''
 * in the documentation or other materials provided with the distribution
 * and in all advertising materials mentioning features or use of this
 * software. Neither the name of the University nor the names of its
 * contributors may be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

#ifndef lint
static char sccsid[] = "@(#)lstSucc.c	5.3 (Berkeley) 6/1/90";
#endif /* not lint */

/*-
 * LstSucc.c --
 *	return the successor to a given node
 */

#include	"lstInt.h"

/*-
 *-----------------------------------------------------------------------
 * Lst_Succ --
 *	Return the sucessor to the given node on its list.
 *
 * Results:
 *	The successor of the node, if it exists (note that on a circular
 *	list, if the node is the only one in the list, it is its own
 *	successor).
 *
 * Side Effects:
 *	None.
 *
 *-----------------------------------------------------------------------
 */
LstNode
Lst_Succ (ln)
    LstNode	ln;
{
    if (ln == NILLNODE) {
	return (NILLNODE);
    } else {
	return ((LstNode) ((ListNode) ln)->nextPtr);
    }
}

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