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Amiga Format CD 7
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Amiga Format AFCD07 (Dec 1996, Issue 91).iso
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programming
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aros
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exec
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remhead.c
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C/C++ Source or Header
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1996-09-12
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2KB
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87 lines
/*
(C) 1995-96 AROS - The Amiga Replacement OS
$Id: remhead.c,v 1.5 1996/08/13 13:56:06 digulla Exp $
$Log: remhead.c,v $
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"
/*****************************************************************************
NAME */
#include <exec/lists.h>
#include <clib/exec_protos.h>
__AROS_LH1I(struct Node *, RemHead,
/* SYNOPSIS */
__AROS_LHA(struct List *, list, A0),
/* LOCATION */
struct SysBase *, 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_FUNC_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_FUNC_EXIT
} /* RemHead */