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Date: Tue, 16 May 2006 21:58:32 +0200
From: Georg Bauhaus <bauhaus@futureapps.de>
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Subject: Re: Inter-object pointer problem
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Date: 2006-05-16T21:58:28+02:00
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Alex Catlin wrote:
> Say I have Packages A and B, implementing data structure A and B
> respectively. I want to create a new B everytime I call a certain
> procedure, and insert a pointer to that data structure

Do you mean, a pointer to a package instance?

> The problem is that generic package A is expecting to be instantiated
> with an access type, but the Ptr_B doesnt exist until I have called
> procedure X.

Is there a reason that you are instantiating the package inside
the procedure?

> If this were C I would instantiate A_Structure as a static
> type

In this case your idea and the use of a generic _package_ do
not correspond so well, I'd say. But I might have misunderstood
your description of problem and solution.

Could you clarify a bit, e.g. "structure" is a rather ambigous
term, used in C, ML, and elsewhere, meaning different things.
But it's not clear (to me at least) what it is supposed to mean here.

Do you have a slightly more specified example, one that could
be compiled, if not successful?