Re: Data structure overlay *next failure

[Vernon Hamberg <vhamberg@xxxxxxxxxxxxxxx>]

You don't have to use sizes if, for example, you are trying to put 
fields from a file in some order - one of the uses of a DS.

On 6/19/2013 8:21 AM, Alan Shore wrote:
> Maybe it's something that I didn't know about, but where are the sizes - well - for anything? Or is this some routine that I don't know about?
>
> Alan Shore
> E-mail : ASHORE@xxxxxxxx
> Phone [O] : (631) 200-5019
> Phone [C] : (631) 880-8640
>
> -----Original Message-----
> From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of darren@xxxxxxxxx
> Sent: Wednesday, June 19, 2013 9:18 AM
> To: midrange-RPG RPG message board
> Subject: Data structure overlay *next failure
>
>
> I'm having an issue creating arrarys over fields in a data structure.  I have something like the following, but the *next function doesn't work with the arrays.  They seem to get their own memory, rather than being overlaid on the XWrkC* fields.  I've seen lots of overlay examples, but I don't see them specify the actual data structure name in the overlay *next command, so I'm wondering if there is some restriction I haven't seen yet, where you aren't supposed to overlay on the data structure itself, but only on the subfields.  In this case, the fields are actually display file fields, but I've seen this behavior with independently declared fields as well.
>
>
>
> D ParmDS          DS                  INZ
> D   XEnd6                             overlay(ParmDS)
> D   XWeeks                            overlay(ParmDS:*next)
> D   xFac                              overlay(ParmDS:*next)
> D   XBuyC                             overlay(ParmDS:*next)
> D   XPlnC                             overlay(ParmDS:*next)
> D   XPVnd                             overlay(ParmDS:*next)
> D   XDept                             overlay(ParmDS:*next)
> D   XITYP                             overlay(ParmDS:*next)
> D   XWrkC1
> D   XWrkC2
> D   XWrkC3
> D   XWrkC4
> D   XWrkC5
> D   XWrkC6
> D   XWrkCA                            Like(xWrkC1) Dim(6)
> D                                     overlay(ParmDS:*next)
> D   xItem1
> D   xItem2
> D   xItem3
> D   xItem4
> D   xItem5
> D   xItem6
> D  xItemA                             Like(xItem1) Dim(6)
> D                                     overlay(ParmDS:*next)
>
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