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+/* ========================================================================== **
+ * ubi_sLinkList.c
+ *
+ * Copyright (C) 1997 by Christopher R. Hertel
+ *
+ * Email: crh@ubiqx.mn.org
+ * -------------------------------------------------------------------------- **
+ * This module implements a really simple singly-linked list.
+ * -------------------------------------------------------------------------- **
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * -------------------------------------------------------------------------- **
+ *
+ * $Log: ubi_sLinkList.c,v $
+ * Revision 1.1 1997/10/15 17:59:58 crh
+ * Added ubi_sLinkList module which manages simple singly-linked lists.
+ *
+ * ========================================================================== **
+ */
+
+#include "ubi_sLinkList.h"
+
+/* ========================================================================== **
+ * Functions...
+ */
+
+ubi_slListPtr ubi_slInitList( ubi_slListPtr ListPtr )
+ /* ------------------------------------------------------------------------ **
+ * Initialize a singly-linked list header.
+ *
+ * Input: ListPtr - A pointer to the list structure that is to be
+ * initialized for use.
+ *
+ * Output: A pointer to the initialized list header (i.e., same as
+ * <ListPtr>).
+ *
+ * ------------------------------------------------------------------------ **
+ */
+ {
+ ListPtr->Head = NULL;
+ ListPtr->count = 0;
+ return( ListPtr );
+ } /* ubi_slInitList */
+
+ubi_slNodePtr ubi_slInsert( ubi_slListPtr ListPtr,
+ ubi_slNodePtr New )
+ /* ------------------------------------------------------------------------ **
+ * Insert a new node at the head of the list.
+ *
+ * Input: ListPtr - A pointer to the list into which the node is to
+ * be inserted.
+ * New - Pointer to the node that is to be added to the list.
+ *
+ * Output: A pointer to the node that was inserted into the list (i.e.,
+ * the same as <New>).
+ *
+ * ------------------------------------------------------------------------ **
+ */
+ {
+ New->Next = ListPtr->Head;
+ ListPtr->Head = New;
+ ++(ListPtr->count);
+ return( New );
+ } /* ubi_slInsert */
+
+ubi_slNodePtr ubi_slRemove( ubi_slListPtr ListPtr )
+ /* ------------------------------------------------------------------------ **
+ * Remove a node from the head of the list.
+ *
+ * Input: ListPtr - A pointer to the list from which the node is to be
+ * removed.
+ *
+ * Output: A pointer to the node that was removed.
+ *
+ * ------------------------------------------------------------------------ **
+ */
+ {
+ ubi_slNodePtr Old = ListPtr->Head;
+
+ if( NULL != Old )
+ {
+ ListPtr->Head = Old->Next;
+ --(ListPtr->count);
+ }
+ return( Old );
+ } /* ubi_slRemove */
+
+
+/* ================================ The End ================================= */