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From: Stephen Leake <Stephe.Leake@nasa.gov>
Newsgroups: comp.lang.ada
Subject: Re: Question about OO programming in Ada
Date: 26 Nov 2003 10:54:20 -0500
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"Ekkehard Morgenstern" <ekkehard.morgenstern@onlinehome.de> writes:

> "Randy Brukardt" <randy@rrsoftware.com> schrieb im Newsbeitrag
> news:vs7eaf1kispja1@corp.supernews.com...
> > "Ekkehard Morgenstern" <ekkehard.morgenstern@onlinehome.de> wrote in
> message
> >
> > > Like, when I declare a procedure
> > >
> > >     procedure A ( B: in access all T'Class )
> > >
> > > could I use a different method and still get all the benefits of Ada
> > > object-oriented programming?
> >
> > Yikes! The "in" isn't allowed here, nor is the "all" -- they're both
> > assumed.
> 
> "in" is allowed, even if assumed. :-)

Hmm. Never make statements like this without first running the code
thru a compiler. Randy writes compilers and edits the Ada Language
Reference Manual (you probably did not know this), so he knows what
he's talking about.

"in" is neither assumed nor allowed.

> the "access all T'Class" part produces an error message with the
> compiler, 

Always believe the compiler! Well, I've never met a compiler that I
didn't find a bug in, but you should certainly start by assuming the
compiler is correct.

> but I meant that to be exemplary anyway (to save me from typing an
> extra "type" statement).

Ada, as you will discover, is _not_ for people who don't like typing
"type" statements. There's nothing "extra" about them!

-- 
-- Stephe