Re: Anonymous array clarification.(Better idea, I think.)

["David C. Hoos" <david.c.hoos.sr@ada95.com>]

----- Original Message -----
From: "McDoobie" <chris@dont.spam.me>
Newsgroups: comp.lang.ada
To: <comp.lang.ada@ada.eu.org>
Sent: Monday, August 20, 2001 4:40 PM
Subject: Re: Anonymous array clarification.(Better idea, I think.)


> Okay, from the above posts in this thread, I think I might be getting
> somewhere.
>
> I'm thinking my problem stems from understanding the difference between an
> "Object" and a type. As I'm coming from a C background, Objects and
> Classes are real fuzzy for me.
>
> So if I say...
>
> type foo_array is array(1..N) of character;
>
> this would be an Object declaration.  Then I would instantiate it
> thusly....
>
> bar_array :  foo_array;
>
> correct?
>
No.  Bar_array is an object declaration.  foo_array is a type declaration.

> However if I say...
>
> some_chars : array(1..N) of character;
>
> this would be just a simple array declaration, with none of the Object
> Oriented properties  carried along with it.
>
some_chars is also an object declaration, but of an anonymous array type.

> And with the Object "foo_array" declared above, I could say ...
>
> type Upper_Case is subtype foo_array;
>
> and it should work?

There is nothing yet to"work," since there are no executable statements,
only declarations.  In fact, you have declared no object of type Upper_Case,
so it does noting for you but to declare a type of which you have declared
no object.

None of whjat you've done so far has anything to do with the object-oriented
features of Ada.

It seems like you really need to get hold of a good Ada book.

>
> Am I beginning to get the picture?
>
> McDoobie
> chris@dont.spam.me
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