Re: array of operations

[dennison@telepath.com (Ted Dennison)]

"marco" <pippo@libero.it> wrote in message news:<alkt6b$t73$1@e3k.asi.ansaldo.it>...
> Do you know if there is some way of bulding up arrays of functions and/or
> procedures?...

Yes, there are ways.

However, the usual answer here to a "how do I do this very C-ish thing
in Ada?" question is "Why do you want to?"

So...Why do you want to? :-)

If it is to interface to a C routine that requires that exact type,
then OK, that's a legitimate reason.

However, if you just want an array that can be populated by clients
where the client gets to specify a behavior, there are other better
ways of doing it. For instance, have you considered using tagged types
and runtime polymorphisim? You make an array of pointers to some base
tagged type's "'Class", which has a primitive routine for you to call
(let's call it "Do_It"). Then each client can derive their own version
of that tagged type and override "Do_It" with their own operation.
This is much more powerful than meer function pointers, is generally
considered better OO design, and is better supported by the language.