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=-1.1 required=5.0 tests=BAYES_00,
	PP_MIME_FAKE_ASCII_TEXT autolearn=no autolearn_force=no version=3.4.4
X-Google-Thread: 103376,8fd45d32d7c94df3
X-Google-NewGroupId: yes
X-Google-Attributes: gida07f3367d7,domainid0,public,usenet
X-Google-Language: ENGLISH,ASCII
Path: 
 g2news2.google.com!news4.google.com!proxad.net!feeder1-2.proxad.net!news.in2p3.fr!in2p3.fr!news.ecp.fr!news.jacob-sparre.dk!pnx.dk!not-for-mail
From: "Randy Brukardt" <randy@rrsoftware.com>
Newsgroups: comp.lang.ada
Subject: Re: User Defined Storage Pool : did you ever experiment with it ?
Date: Mon, 24 Jan 2011 19:36:27 -0600
Organization: Jacob Sparre Andersen Research & Innovation
Message-ID: <ihl9et$a1e$1@munin.nbi.dk>
References: <op.vpont3pqule2fv@garhos>
 <ihk0te$e26@news.Informatik.Uni-Oldenburg.DE> <op.vpt6fwhyule2fv@garhos>
 <op.vpt8agtdule2fv@garhos>
NNTP-Posting-Host: static-69-95-181-76.mad.choiceone.net
X-Trace: munin.nbi.dk 1295919389 10286 69.95.181.76 (25 Jan 2011 01:36:29 GMT)
X-Complaints-To: news@jacob-sparre.dk
NNTP-Posting-Date: Tue, 25 Jan 2011 01:36:29 +0000 (UTC)
X-Priority: 3
X-MSMail-Priority: Normal
X-Newsreader: Microsoft Outlook Express 6.00.2900.5931
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5931
X-RFC2646: Format=Flowed; Response
Xref: g2news2.google.com comp.lang.ada:17647
Date: 2011-01-24T19:36:27-06:00
List-Id: <comp.lang.ada>

"Yannick Duch�ne (Hibou57)" <yannick_duchene@yahoo.fr> wrote in message 
news:op.vpt8agtdule2fv@garhos...
Le Tue, 25 Jan 2011 00:34:34 +0100, Yannick Duch�ne (Hibou57)
<yannick_duchene@yahoo.fr> a �crit:
>> Because storage pools provide no means to check dereferences,
>> GNAT offers a special type of storage pool, called a
>> "checked pool", with an additional abstract primitive
>> operation called Dereference.
>That's an interesting feature indeed, but not standard. How many Ada 
>compiler vendors provides a similar feature ?

Can't answer that, but we did consider adding such a feature to Ada 2012. 
Eventually we decided on a more general purpose user-defined dereferencing 
capability instead.

                          Randy.