Re: Array DS Question

Bob Cozzi wrote:

Wouldn't there be a problem with overlaying the array over the
DS that contains the array though?

That is not what is happening.
The OVERLAY keyword is used to position a subfield in a specific location within
a data structure. You can specify either another subfield name or the data
structure name itself. The second parameter of OVERLAY is the actually position
within the overlaid subfield where you want the new field to begin. If the
overlaid "subfield" is really the data structure name, then it is within the
data structure itself and the second parameter is the position within the data
structure where you want the new subfield to appear.
If the second parameter is not specified, then it defaults to 1.
Hence, Jerry's example is the (only?) correct one.

It is just too darn bad that IBM didn't think of using OVERLAY(*DS) instead of
the actually data structure name... makes using LIKEDS with an overlay hurt my
brain.
-Bob Cozzi

In the interest of full disclosure, I did not come up with the method independently. I can't remember exactly, but I think it was either Paul Tuohy or Tommy Holden (I steal from so many people it's hard keep it straight). Heck, it might even have been you, Bob.



* Jerry C. Adams
*IBM System i5/iSeries Programmer/Analyst
B&W Wholesale Distributors, Inc.* *
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