Re: Adding another subfield to an externally defined data structu re.

[rob@xxxxxxxxx]

Overlaying an array.

     D FLWORKREC       DS                  likerec(flworkr)
     D pDuh            s               *   inz(%addr(flworkrec))
     D duh             ds                  based(pDuh)
     D  col                          15p 4 overlay(duh:39) dim(389)

Rob Berendt
-- 
"They that can give up essential liberty to obtain a little temporary 
safety deserve neither liberty nor safety." 
Benjamin Franklin 




Hans Boldt <boldt@xxxxxxxxxx>
Sent by: rpg400-l-bounces@xxxxxxxxxxxx
04/29/2003 10:59 AM
Please respond to RPG programming on the AS400 / iSeries
 
        To:     rpg400-l@xxxxxxxxxxxx
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        Subject:        Re: Adding another subfield to an externally 
defined data structu re.


rob@xxxxxxxxx wrote:
> Hans,
> 
> What additional checking is done with LIKEREC that isn't already done 
with 
> EXTNAME?  Don't they both pull in the field names and attributes?  I 
> realize that once "you've let the cat out of the bag" by creating 
LIKEREC 
> it's hard to take it away.  But if they do the same checking, I'd just 
as 
> soon use EXTNAME.
> 
> Can you change LIKEREC so that we may add additional fields to it?  Or 
at 
> least overlays?
> 
> Rob Berendt

Rob: As I suggested, one of the design features of LIKEREC is that 
you can't add subfields to it. Thus, it can be used as the result of 
record I/O with confidence that the data structure matches the 
record precisely. Do you want to be able to read into a data 
structure that does not match the record? What exactly are you 
trying to accomplish?

Cheers! Hans


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