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From: Jim Rogers <jrogers@omnitech.com>
Subject: Re: Multi-dimensional Array of Functions ?
Date: 2000/05/05
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In article <169b2ded.062ddfc5@usw-ex0109-068.remarq.com>,
  John O'Malley <john.omalleyNOjoSPAM@hs.utc.com.invalid> wrote:
> I am a newbie to ada and I am looking for an example of an
> array of functions. The project I am currently working on
> has a procedure which is a gaint case statement with nested
> cases that make function calls. This procedure is
> unreadable and could easily be reduced by 99% by using a
> multidimensional array containing pointers to functions.
>
> I know how to create an array of pointers to functions in C
> and I was wondering if this is even possible in ada 83 or
> 95. If it is possible, do all the functions in the array
> have to be formatted the same (i.e same pass and return
> parameters)? Any help and/or examples would be appreciated.
>
> Thanks,
>
> John

I think you may want to rethink the problem.

This looks like a strong candidate for polymorphism.
It appears that your C solution is very close to the C++
Vtbl solution. If so, you will simplify the readability of
the code more by using inheritance and tagged types than
by using a multidimensional array of function access types.

Jim Rogers
Colorado Springs, Colorado USA


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