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=-0.3 required=5.0 tests=BAYES_00,
	REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4
X-Google-Thread: 103376,4ea86b01a068c433
X-Google-NewGroupId: yes
X-Google-Attributes: gida07f3367d7,domainid0,public,usenet
X-Google-Language: ENGLISH,ASCII-7-bit
Received: by 10.68.234.71 with SMTP id uc7mr467878pbc.3.1336034477153;
        Thu, 03 May 2012 01:41:17 -0700 (PDT)
Path: 
 r9ni126636pbh.0!nntp.google.com!news1.google.com!news2.google.com!news.glorb.com!feeder.erje.net!news.mixmin.net!aioe.org!.POSTED!not-for-mail
From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.lang.ada
Subject: Re: Container for access values.
Date: Thu, 3 May 2012 10:40:18 +0200
Organization: cbb software GmbH
Message-ID: <1z6q1ozdu121$.1fo9qmoh5livg$.dlg@40tude.net>
References: <3000608.845.1336028922599.JavaMail.geo-discussion-forums@vbvx4>
 <9057885.637.1336033565315.JavaMail.geo-discussion-forums@vbq19>
Reply-To: mailbox@dmitry-kazakov.de
NNTP-Posting-Host: FbOMkhMtVLVmu7IwBnt1tw.user.speranza.aioe.org
Mime-Version: 1.0
X-Complaints-To: abuse@aioe.org
User-Agent: 40tude_Dialog/2.0.15.1
X-Notice: Filtered by postfilter v. 0.8.2
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Date: 2012-05-03T10:40:18+02:00
List-Id: <comp.lang.ada>

On Thu, 3 May 2012 01:26:05 -0700 (PDT), David Pettersson wrote:

> So "<" is defined for addresses but not for accesses. So all I have to do 
> is to take the address of the accesses' targets and compare them.

Don't forget checking for null:

   return
      Ptr (Right) /= null
   and then
      (Ptr (Left) = null  or else Left.all'Address < Right.all'Address);

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