Re: Q: unboxed values and polymorphism

[jsa@organon.com (Jon S Anthony)]

In article <uvvyblp84l7.fsf@chaq.informatik.uni-tuebingen.de> Hannes Haug <Hannes.Haug@Student.Uni-Tuebingen.de> writes:

> I'm new to Ada and have a questions on polymorphism. The standard
> way to have polymorphism in Ada are tagged records. But for my needs

If it helps, it also works this way in C++, Eiffel, Sather, and any
other "statically" typed OO language.

> this requires too much space.

Then you are in trouble no matter what.

> require too much time and space. I'd like to convert access values to
> integers and do my own tagging. I could simply translate my C code.

This sounds like a _really_ _really_ bad idea.  In your C, are you
using "meta" bits (ala' Lisp impls) or what?


> But it would be nice to see how an experienced Ada programmer would do
> this in Ada. Can I find some code that does this somewhere ? 

I'm not sure what it is you are trying to do.  Make a list?  Make
a generic list?  Make a typed polymorphic list?  Make an untyped
uncheckd programmer beware list?  What?

/Jon
-- 
Jon Anthony
Organon Motives, Inc.
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Belmont, MA 02178

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