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=-1.9 required=5.0 tests=BAYES_00 autolearn=ham
	autolearn_force=no version=3.4.4
X-Google-Thread: 103376,28a24746aa07c732
X-Google-Attributes: gid103376,public
X-Google-Language: ENGLISH,ASCII-7-bit
Path: 
 g2news1.google.com!news3.google.com!news.glorb.com!news.ecp.fr!news.jacob-sparre.dk!pnx.dk!not-for-mail
From: "Randy Brukardt" <randy@rrsoftware.com>
Newsgroups: comp.lang.ada
Subject: Re: Design help
Date: Tue, 13 Mar 2007 17:22:09 -0500
Organization: Jacob's private Usenet server
Message-ID: <et783i$2if$1@jacob-sparre.dk>
References: <mailman.120.1173747027.18371.comp.lang.ada@ada-france.org>
 <1v79s2t3fjrxu.14pyinp46ngmp.dlg@40tude.net>
NNTP-Posting-Host: static-69-95-181-76.mad.choiceone.net
X-Trace: jacob-sparre.dk 1173824434 2639 69.95.181.76 (13 Mar 2007 22:20:34
 GMT)
X-Complaints-To: news@jacob-sparre.dk
NNTP-Posting-Date: Tue, 13 Mar 2007 22:20:34 +0000 (UTC)
X-Priority: 3
X-MSMail-Priority: Normal
X-Newsreader: Microsoft Outlook Express 6.00.2800.1807
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1807
Xref: g2news1.google.com comp.lang.ada:14526
Date: 2007-03-13T17:22:09-05:00
List-Id: <comp.lang.ada>

"Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> wrote in message
news:1v79s2t3fjrxu.14pyinp46ngmp.dlg@40tude.net...
...
> Because attribute is not limited the compiler would generate assignment as
> a shallow copy. That might get quite dangerous with pointers. Either it
has
> to be limited or strings need to be by-value (or by-reference counted
smart
> pointers).

Or controlled types with an appropriate Adjust routine. (This is the option
I most likely would use). The stream attributes don't include the tag, so
they wouldn't cause any additional trouble over the untagged versions.

                   Randy.