Re: Externally-Described Field used as array name.

Joep, your message arrived here with a creation date of 8-23-2000. I
thought I'd let you know.

Joep Beckeringh wrote:

>Patrick,
>
>When you overlay an array, the result is automatically an array as well.
>What you can do is this:
>
>D                 ds
>DPdLb_fld
>DPdLb01                               Overlay(PdLb_fld:*NEXT)
>DPdLb02                               Overlay(PdLb_fld:*NEXT)
>DPdLb03                               Overlay(PdLb_fld:*NEXT)
>DPdLb                                 Like(PdLb01) Overlay(PdLb_fld) Dim(3)
>
>You create a dummy field that contains the array (I think the compiler
>calculates the length for you).  You make the individual fields overlay the
>dummy field; you don't have to supply the definition if they are defined
>elsewhere (externally described file); by using *NEXT you don't have to
>worry about the positions either.  Lastly you create an array that overlays
>the dummy field (and thus the individual fields) by not specifying *NEXT or
>a position (or by specifying ':1').
>
>Joep Beckeringh
>
>
>----- Original Message -----
>From: <PatrickConner@parkdalemills.com>
>To: <rpg400-l@midrange.com>
>Sent: Thursday, August 23, 2001 10:06 PM
>Subject: Externally-Described Field used as array name.
>
>
>>D                 ds
>>DPdLb                                 Like(PdLb01) Dim(3)
>>DPdLb01                               Overlay(PdLb)
>>DPdLb02                               Overlay(PdLb:8)
>>DPdLb03                               Overlay(PdLb:15)
>>
>>
>>   932=I                             S   60   66 0WK1AVL
>>   933=I                             S   67   73 0PDLB02
>>======>                                           aaaaaaaaaaaaaa
>>*RNF4138 30 a      000016  Externally-Described Field used as array name.
>>Definition
>>                           specification is ignored.
>>   934=I                             S   74   80 0WK2SHP
>>
>>
>>Why?
>>
>>I think I understand that it is a memory address thing, but I'd like an
>>clear explanation.
>>
>>Patrick Conner
>>www.ConnecTown.com
>>(828) 244-0822
>>
>
>
>
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