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[unix-history] / usr / src / usr.bin / make / lst.lib / lstInit.c

/*
 * 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 the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation,
 * advertising materials, and other materials related to such
 * distribution and use acknowledge that the software was developed
 * by the University of California, Berkeley.  The name of the
 * University may not 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[] = "@(#)lstInit.c	5.2 (Berkeley) %G%";
#endif /* not lint */

/*-
 * init.c --
 *	Initialize a new linked list.
 */

#include	"lstInt.h"

/*-
 *-----------------------------------------------------------------------
 * Lst_Init --
 *	Create and initialize a new list.
 *
 * Results:
 *	The created list.
 *
 * Side Effects:
 *	A list is created, what else?
 *
 *-----------------------------------------------------------------------
 */
Lst
Lst_Init(circ)
    Boolean		circ;	/* TRUE if the list should be made circular */
{
    register List	nList;
    
    PAlloc (nList, List);
    
    nList->firstPtr = NilListNode;
    nList->lastPtr = NilListNode;
    nList->isOpen = FALSE;
    nList->isCirc = circ;
    nList->atEnd = Unknown;
    
    return ((Lst)nList);
}

Malloc(nbytes)
{
#ifdef DEBUG
    printf("malloc: %d\n", nbytes);
#endif DEBUG
    return(malloc(nbytes));
}