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Newsgroups: comp.lang.ada
Date: Wed, 9 Sep 2015 05:41:01 -0700 (PDT)
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Subject: Re: working with diferent instances of the same generic interface
From: Aitor Alcrudo Sangros <aitor.alcrudo@gmail.com>
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Xref: news.eternal-september.org comp.lang.ada:27750
Date: 2015-09-09T05:41:01-07:00
List-Id: <comp.lang.ada>

El mi=E9rcoles, 9 de septiembre de 2015, 14:17:52 (UTC+2), Egil H H  escrib=
i=F3:
> On Wednesday, September 9, 2015 at 1:08:51 PM UTC+2, Aitor Alcrudo Sangro=
s wrote:
> <snip>
>=20
> Reporting_basic.Reporting_Element_Access is an access type that can=20
> only point to variables of type Reporting_basic.Reporting_Element.
>=20
> Element_type_A_Access is an access type that can
> only point to variables of type Element_type_A=20
> (which derives from Reporting_some.Reporting_Element)
>=20
> Reporting_some.Reporting_Element and Reporting_basic.Reporting_Element
> are two different types. Converting between them (or access to them)=20
> would be like trying to convert a giraffe into an elephant.
>=20
>=20
> --=20
> ~egilhh

Well they instance the same generic interface so more like trying to turn a=
 dog into a coyote, but that's why I'm asking for help.

There should be a way to make Manager be able to work with objects of diffe=
rent instances of the generic Reporting_Element interface. The class Manage=
r does not need to know the internals of any of those instances just that t=
hey implement some functions and procedures that can be called.

I am trying to determine if this is at all possible and how should I go abo=
ut it. From what I know of Ada and other languages I think it should be doa=
ble so I'm trying to find the correct way.