pointer_return_last_queue_entry_position_.htm
| Navigation: Language Reference > 13 - Built-in Functions >====== POINTER (return last queue entry position) ====== |    |
POINTER( queue )
| POINTER | Returns the entry number of the last entry accessed in a QUEUE. |
| queue | The label of a QUEUE structure, or the label of a passed QUEUE parameter. |
The POINTER procedure returns a LONG integer specifying the entry number of the last QUEUE entry accessed by ADD, GET, or PUT.
The value of POINTER is only valid if the ADD, GET, or PUT operation is successful.
Return Data Type: LONG
Example:
Que:Name = 'Jones' !Initialize key field in sorted queue
GET(NameQue,Que:Name) !Get the entry, if available
IF ~ERRORCODE() !If successful
ADD(SecondQue,POINTER(NameQue))!add the entry to second queue.
END
See Also:
pointer_return_last_queue_entry_position_.htm.txt · Last modified: 2021/04/15 15:57 by 127.0.0.1