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=unavailable autolearn_force=no version=3.4.4
Path: 
 border1.nntp.dca1.giganews.com!nntp.giganews.com!newspeer1.nac.net!feeder.erje.net!eu.feeder.erje.net!news.swapon.de!eternal-september.org!feeder.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail
From: Jeffrey Carter <spam.jrcarter.not@spam.not.acm.org>
Newsgroups: comp.lang.ada
Subject: Re: newbie: can't read fast enough... :-)    memory leaks...
Date: Wed, 03 Sep 2014 22:32:51 -0700
Organization: Also freenews.netfront.net; news.tornevall.net;
 news.eternal-september.org
Message-ID: <lu8ti4$lqq$2@dont-email.me>
References: <479b2efe-0238-4b2a-8b05-cb1a0b4a57e5@googlegroups.com>
 <1409739464.7121.235.camel@obry.net> <hjSNv.114789$Fo3.103404@fx09.iad>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
Injection-Date: Thu, 4 Sep 2014 05:32:53 +0000 (UTC)
Injection-Info: mx05.eternal-september.org;
 posting-host="5b4eadb0ecf28f7f740a0e18f3715b8f";
 logging-data="22362"; mail-complaints-to="abuse@eternal-september.org";
 posting-account="U2FsdGVkX19GDXw/6Sp9Kk9+yVJkyedMbLNh6rj3Evw="
User-Agent: Mozilla/5.0 (X11; Linux x86_64;
 rv:31.0) Gecko/20100101 Thunderbird/31.0
In-Reply-To: <hjSNv.114789$Fo3.103404@fx09.iad>
Cancel-Lock: sha1:LRaw6zgUUTqOhNxCaOkZUh4LU2s=
Xref: number.nntp.dca.giganews.com comp.lang.ada:188856
Date: 2014-09-03T22:32:51-07:00
List-Id: <comp.lang.ada>

On 09/03/2014 09:57 PM, Brad Moore wrote:
> 
>      declare
>         type String_Access is access String;
>         A, B : String_Access;
>      begin
>         A := new String'("String 1");
>         B := new String'("String 2");
>         ... -- Operate on the data.
>      end;
>      -- A and B are automatically freed here because the String_Access
>      -- is finalized since the scope of the declaration of the access
>      -- type is being exited, and finalizing an access type also
>      -- finalizes its collection (allocated objects designated by that
>      -- type).
> 
> This is a nice way to free up a bunch of objects that are no longer needed, if
> it can be guaranteed that the objects are only needed in a nested scope. I like
> this better than garbage collection, because the
> deallocation occurs more consistently, when and where it is needed.
> I view this as being less error prone, if one is able to take advantage of this
> approach.

Recent comments here in another thread indicate that this only works if
'Storage_Size is defined for the access type.

-- 
Jeff Carter
"Hello! Smelly English K...niggets."
Monty Python & the Holy Grail
08