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,FREEMAIL_FROM
	autolearn=ham autolearn_force=no version=3.4.4
X-Google-Thread: 103376,46474020a5b291b7,start
X-Google-Attributes: gid103376,public
X-Google-Language: ENGLISH,ASCII-7-bit
Path: 
 g2news2.google.com!postnews.google.com!b28g2000cwb.googlegroups.com!not-for-mail
From: "ldb" <ldb_nospam@hotmail.com>
Newsgroups: comp.lang.ada
Subject: Free'ing dynamic abstract tagged types..
Date: 21 Sep 2006 14:08:04 -0700
Organization: http://groups.google.com
Message-ID: <1158872883.994303.80430@b28g2000cwb.googlegroups.com>
NNTP-Posting-Host: 206.210.81.52
Mime-Version: 1.0
Content-Type: text/plain; charset="iso-8859-1"
X-Trace: posting.google.com 1158872887 429 127.0.0.1 (21 Sep 2006 21:08:07
 GMT)
X-Complaints-To: groups-abuse@google.com
NNTP-Posting-Date: Thu, 21 Sep 2006 21:08:07 +0000 (UTC)
User-Agent: G2/1.0
X-HTTP-UserAgent: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US;
 rv:1.8.0.7) Gecko/20060909 Firefox/1.5.0.7,gzip(gfe),gzip(gfe)
Complaints-To: groups-abuse@google.com
Injection-Info: b28g2000cwb.googlegroups.com; posting-host=206.210.81.52;
   posting-account=V3awPg0AAAB11Uk1Sshvlrxz0peUf-At
Xref: g2news2.google.com comp.lang.ada:6689
Date: 2006-09-21T14:08:04-07:00
List-Id: <comp.lang.ada>

Ok, so I have this abstract tagged type called Person (for the sake of
discussion), and I have an Access_Person (which is access all
people'class).

I have some derived types, like Man and Child, with their own added
fields. And I have defined Access_Man, Access_Child, as normal accesses
to these types.

I want to free an Access_Person that was dynamically allocated.
ap : Access_Person;
begin
ap := Access_Person(new Man);
free(ap);
...

I can't figure out how to write the free routine, since unchecked
deallocation wants a pointer (presumably access_man), but all I have is
a class-wide pointer, and I can't figure out how, or if, I can convert
it. Does that make sense?

Using free(ap.all), I can make an abstract function that will dispatch
and free any nested allocations, but I can't seem to get it to free the
record, itself.