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  3. April 2002

Re: MATAGPAT strange behavior?

<Gene_Gaunt@ReviewWorks.com>

> When I get the program activation list using MATAGPAT on V5R1, and the size
> provided (pos 1-4) is less than the size available (pos 5-8), then MATAGPAT
> destroys my operand 1 space pointer to the receiver template.
>
> dcl dd     Receiver   auto char(64) bdry(16);
> dcl dd     *          def(Receiver) pos(1) bin(4) init(64);
> dcl spcptr ?Receiver  auto init(Receiver);
>
> matagpat ?Receiver, GroupMark, X"02";
>
> /* ?Receiver is now null */
>

is it only the ?Receiver that is destroyed? or does it also
destroy bytes after that (maybe all 8000+ bytes)?
What happens if you don't make the variables 'auto'?

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