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- /*
- (C) 1995 AROS - The Amiga Replacement OS
- $Id: addhead.c 1.1 1995/11/05 22:49:09 digulla Exp digulla $
- $Log: addhead.c $
- * Revision 1.1 1995/11/05 22:49:09 digulla
- * Initial revision
- *
- Desc:
- Lang: english
- */
- #include "exec_intern.h"
-
- /*****************************************************************************
-
- NAME */
- #include <exec/lists.h>
- #include <clib/exec_protos.h>
-
- __AROS_LH2I(void, AddHead,
-
- /* SYNOPSIS */
- __AROS_LA(struct List *, list, A0),
- __AROS_LA(struct Node *, node, A1),
-
- /* LOCATION */
- struct SysBase *, SysBase, 40, Exec)
-
- /* FUNCTION
- Insert Node node as the first node of the list.
-
- INPUTS
- list - The list to insert the node into
- node - This node is to be inserted
-
- RESULT
-
- NOTES
-
- EXAMPLE
- struct List * list;
- struct Node * pred;
-
- // Insert Node at top
- AddHead (list, node);
-
- BUGS
-
- SEE ALSO
-
- INTERNALS
-
- HISTORY
- 26-08-95 digulla created after EXEC-Routine
- 26-10-95 digulla adjusted to new calling scheme
-
- ******************************************************************************/
- {
- assert (node);
- assert (list);
-
- /*
- Make the node point to the old first node in the list and to the
- head of the list.
- */
- node->ln_Succ = list->lh_Head;
- node->ln_Pred = (struct Node *)&list->lh_Head;
-
- /*
- New we come before the old first node which must now point to us
- and the same applies to the pointer to-the-first-node in the
- head of the list.
- */
- list->lh_Head->ln_Pred = node;
- list->lh_Head = node;
- } /* AddHead */
-
-