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From: Ray Toal <rtoal@eecs.lmu.edu>
Subject: Re: C/C++ knocks the ....
Date: 1996/02/18
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Date: 1996-02-18T00:00:00+00:00
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dewar@cs.nyu.edu (Robert Dewar) wrote:
>iMatt says
>
> >As for Ada, I'm not yet fully convinced abou the package vs
> >type thing.  C++ might be ugly because you can have all sorts of
> >elements outside classes, but in Eiffel you cannot.
>
> >Eiffel intentionally makes the unit of namespace and of type
> >the same.
>
>Time to make my observation again:
>
>unify and confuse mean the same thing (join together)

In this case there are good arguments for the "confuse" part - or,
at least that identifying a class (a logical construct) with a
package or module (a physical construct) is less desirable than
cleanly separating them, like Ada does.

Norman Cohen just posted a really good article on this topic a few
days ago and I won't repeat it here.  It should at least "convince"
people that separating package and type is a solid design decision
and not a hack to maintain upward compatibility with Ada 83.

Having programmed in Smalltalk and C++ before Ada 95, I admit I had
to look twice at the Ada approach because I was so USED TO confusing
class with module.  But taking a few minutes to get used to Ada's
approach I like it better.

Ray Toal