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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: High-Integrity OO and controlled types
Date: Mon, 2 May 2011 21:39:29 +0200
Date: 2011-05-02T21:39:28+02:00	[thread overview]
Message-ID: <47nrp21n5a5b.1tmmgxawdp4ko$.dlg@40tude.net> (raw)
In-Reply-To: wccmxj5rrka.fsf@shell01.TheWorld.com

On Mon, 02 May 2011 12:32:53 -0400, Robert A Duff wrote:

> "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> writes:
> 
>> On Sun, 01 May 2011 17:29:10 -0400, Robert A Duff wrote:
>>
>>> Maciej Sobczak <see.my.homepage@gmail.com> writes:
>>> 
>>>> "Controlled types are not supported since they require extensive run-
>>>> time support."
>>
>> A prejudice
> 
> Note that we're talking about pragmas Restrictions and Profile.

Rather about rationale behind such restrictions. You gave an example of an
overhead caused by local access-to-controlled types. That has a far
narrower scope than *any* usage of controlled types. A restriction of such
access types can be reasonable (as well as, and much more importantly,
precluding dynamic accessibility checks). Prohibiting all controlled types
is just irrational.

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



  reply	other threads:[~2011-05-02 19:39 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-01 20:38 High-Integrity OO and controlled types Maciej Sobczak
2011-05-01 21:29 ` Robert A Duff
2011-05-01 22:44   ` Simon Wright
2011-05-02  7:59   ` Dmitry A. Kazakov
2011-05-02 16:32     ` Robert A Duff
2011-05-02 19:39       ` Dmitry A. Kazakov [this message]
2011-05-03  0:08         ` Robert A Duff
2011-05-03  7:30           ` Dmitry A. Kazakov
2011-05-03 16:51             ` Robert A Duff
2011-05-02  9:50 ` Cyrille
2011-05-02 10:01   ` Cyrille
2011-05-02 19:25     ` Maciej Sobczak
2011-05-03  9:32       ` Cyrille
2011-05-03  9:59         ` Maciej Sobczak
2011-05-03 10:24           ` Dmitry A. Kazakov
2011-05-03 16:53             ` Robert A Duff
2011-05-03 17:37               ` Dmitry A. Kazakov
2011-05-03 11:28           ` Georg Bauhaus
2011-05-03 12:27             ` Dmitry A. Kazakov
2011-05-03 15:22               ` Georg Bauhaus
2011-05-03 16:28                 ` Dmitry A. Kazakov
2011-05-04  8:48                   ` Georg Bauhaus
2011-05-04  9:28                     ` Dmitry A. Kazakov
2011-05-04 14:46                       ` Georg Bauhaus
2011-05-04 15:01                         ` Dmitry A. Kazakov
2011-05-04 15:25                           ` Georg Bauhaus
2011-05-04 16:23                             ` Dmitry A. Kazakov
2011-05-04 17:06                               ` Georg Bauhaus
2011-05-04 20:16                                 ` Dmitry A. Kazakov
2011-05-05  7:13                                   ` Maciej Sobczak
2011-05-05 10:58                                     ` Cyrille
2011-05-05 12:35                                       ` Dmitry A. Kazakov
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