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- /*
- (C) 1995-96 AROS - The Amiga Replacement OS
- $Id: remhead.c,v 1.9 1997/01/01 03:46:14 ldp Exp $
- $Log: remhead.c,v $
- Revision 1.9 1997/01/01 03:46:14 ldp
- Committed Amiga native (support) code
-
- Changed clib to proto
-
- Revision 1.8 1996/12/10 13:51:51 aros
- Moved all #include's in the first column so makedepend can see it.
-
- Revision 1.7 1996/10/24 15:50:55 aros
- Use the official AROS macros over the __AROS versions.
-
- Revision 1.6 1996/10/21 20:48:22 aros
- Changed struct SysBase to struct ExecBase
-
- Revision 1.5 1996/08/13 13:56:06 digulla
- Replaced AROS_LA by AROS_LHA
- Replaced some AROS_LH*I by AROS_LH*
- Sorted and added includes
-
- Revision 1.4 1996/08/01 17:41:16 digulla
- Added standard header for all files
-
- Desc:
- Lang: english
- */
-
- /* I want the macros */
- #define AROS_ALMOST_COMPATIBLE
- #include "exec_intern.h"
- #include <exec/lists.h>
- #include <proto/exec.h>
-
- /*****************************************************************************
-
- NAME */
-
- AROS_LH1I(struct Node *, RemHead,
-
- /* SYNOPSIS */
- AROS_LHA(struct List *, list, A0),
-
- /* LOCATION */
- struct ExecBase *, SysBase, 43, Exec)
-
- /* FUNCTION
- Remove the first node from a list.
-
- INPUTS
- list - Remove the node from this list
-
- RESULT
- The node that has been removed.
-
- NOTES
-
- EXAMPLE
- struct List * list;
- struct Node * head;
-
- // Remove node and return it
- head = RemHead (list);
-
- BUGS
-
- SEE ALSO
-
- INTERNALS
-
- HISTORY
- 26-08-95 digulla created after EXEC-Routine
- 26-10-95 digulla adjusted to new calling scheme
-
- ******************************************************************************/
- {
- AROS_LIBFUNC_INIT
- struct Node * node;
-
- assert (list);
- /*
- Unfortunately, there is no (quick) check that the node
- is in a list
- */
-
- /* Get the address of the first node or NULL */
- node = list->lh_Head->ln_Succ;
- if (node)
- {
- node->ln_Pred = (struct Node *)list;
- node = list->lh_Head;
- list->lh_Head = node->ln_Succ;
- }
-
- /* Return the address or NULL */
- return node;
- AROS_LIBFUNC_EXIT
- } /* RemHead */
-
-