From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: 
X-Spam-Status: No, score=-2.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM,
	MAILING_LIST_MULTI autolearn=unavailable autolearn_force=no
	version=3.4.4
X-Google-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: 103376,ecfc0548c2df0d76
X-Google-Attributes: gid103376,public
X-Google-ArrivalTime: 2003-11-11 13:29:23 PST
Path: 
 archiver1.google.com!news2.google.com!news.maxwell.syr.edu!newsfeed.icl.net!newsfeed.fjserv.net!oleane.net!oleane!frmug.org!freenix!enst.fr!melchior!cuivre.fr.eu.org!melchior.frmug.org!not-for-mail
From: Marius Amado Alves <amado.alves@netcabo.pt>
Newsgroups: comp.lang.ada
Subject: Re: MI ammunition : linked lists
Date: Tue, 11 Nov 2003 21:27:29 +0000
Organization: Cuivre, Argent, Or
Message-ID: <mailman.325.1068586072.25614.comp.lang.ada@ada-france.org>
References: <mailman.297.1068145350.25614.comp.lang.ada@ada-france.org>
	<borabl$d68$1@a1-hrz.uni-duisburg.de>
NNTP-Posting-Host: lovelace.ada-france.org
Mime-Version: 1.0
Content-Type: text/plain
Content-Transfer-Encoding: 7bit
X-Trace: melchior.cuivre.fr.eu.org 1068586072 71137 80.67.180.195 (11 Nov 2003
 21:27:52 GMT)
X-Complaints-To: usenet@melchior.cuivre.fr.eu.org
NNTP-Posting-Date: Tue, 11 Nov 2003 21:27:52 +0000 (UTC)
To: comp.lang.ada@ada-france.org
Return-Path: <amado.alves@netcabo.pt>
In-Reply-To: <borabl$d68$1@a1-hrz.uni-duisburg.de>
X-Mailer: Ximian Evolution 1.4.5 
X-OriginalArrivalTime: 11 Nov 2003 21:27:13.0617 (UTC)
	FILETIME=[92B37410:01C3A89A]
X-Virus-Scanned: by amavisd-new-20030616-p5 (Debian) at ada-france.org
X-BeenThere: comp.lang.ada@ada-france.org
X-Mailman-Version: 2.1.2
Precedence: list
List-Id: Gateway to the comp.lang.ada Usenet newsgroup
	<comp.lang.ada.ada-france.org>
List-Unsubscribe: <http://www.ada-france.org/mailman/listinfo/comp.lang.ada>,
	<mailto:comp.lang.ada-request@ada-france.org?subject=unsubscribe>
List-Post: <mailto:comp.lang.ada@ada-france.org>
List-Help: <mailto:comp.lang.ada-request@ada-france.org?subject=help>
List-Subscribe: <http://www.ada-france.org/mailman/listinfo/comp.lang.ada>,
	<mailto:comp.lang.ada-request@ada-france.org?subject=subscribe>
Xref: archiver1.google.com comp.lang.ada:2376
Date: 2003-11-11T21:27:29+00:00

On Tue, 2003-11-11 at 18:38, Georg Bauhaus wrote:
> amado.alves <amado.alves@netcabo.pt> wrote:
> : <<Inheritance should reflect an "is a" relationship. Do you fill comfortable stating that a middle node is a first node and a last
> : node at the same time?...>>
> : 
> : I do saying a Node_Pointing_Both_Ways is a Node_Pointing_Forward and a Node_Pointing_Backward.
> : 
> : But I agree with the general advice. Thanks.
> 
> Maybe there is another clear picture, if you think of slightly
> more complex structure than a list. You can "ask" a node, "do
> you have a predecessor/successor?", but what question are you
> going to ask a graph node?
> For example, if a star is a node with indegree >= 5, does it
> make sense to employ any kind of ihneritance to reflect an
> indegree of 5?

The main question to be a asked a graph node is "what nodes are attached
to you?" The reply is a iterator over the corresponding nodes.

(Note another reply in this thread made the same claim for MI for linked
lists regarding names with different names than mine but with the same
exact meaning.)