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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Self pointer in limited record
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Date: Sat, 1 Sep 2007 22:09:11 +0200
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Date: 2007-09-01T22:08:51+02:00
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On Sat, 01 Sep 2007 21:49:52 +0200, Georg Bauhaus wrote:

> Dmitry A. Kazakov wrote:
> 
>>> 2 - Nesting packages is an option, a distinguishing feature
>>> of Ada IMO; a package nested inside a subprogram is a
>>> simple solution to the life cycle problem of module style
>>> objects.
>> 
>> Hmm, a subprogram has all properties of a package. So there is no obvious
>> reason why nested package (except instances of generic packages, of
>> course), might be useful there.
> 
> You can have two nested packages, or more. :-)

If you don't need a single, why would you two? Packages are to bind
together coupled reusable things. A package within an implementation cannot
serve this purpose. Your example with a farm should better be a container
type with house and barn being objects. Farms can have two or more barns.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de