Re: Procedure Parameter Change (was Exported Variables)

["Paul Morgan" <pmorgan@xxxxxxxxxxxxxx>]

Joel,

I like your comments on the perils of changing procedure parameters in your
original article at http://www.itjungle.com/mpo/mpo092503-story02.html.  In
this case I'm arguing that using LIKE on a procedure interface encourages
procedure parameters to change which is bad.

Thanks,
Paul

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Paul Morgan
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"Joel Cochran" wrote

> Sorry I'm coming late to the party, but changing the parameters of an
> existing exported sub-procedure is a very bad idea.
>
> Sorry i don't have more time to explain, but I do have an article that
> may help a bit.  It also discusses an approach I use called "Dual
> Prototyping" to help manage exactly this kind of change:
>
> http://www.itjungle.com/fhg/fhg051204-story03.html
>
> HTH,
>
> Joel Cochran
> http://www.rpgnext.com