From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Self pointer in limited record
Date: Fri, 31 Aug 2007 21:33:05 +0200
Date: 2007-08-31T21:32:46+02:00 [thread overview]
Message-ID: <9fy1xoukz1e3$.h574sqmiauri$.dlg@40tude.net> (raw)
In-Reply-To: 1188578849.187422.280620@50g2000hsm.googlegroups.com
On Fri, 31 Aug 2007 16:47:29 -0000, amado.alves@gmail.com wrote:
> Then you have seen illegal Ada code repeatedly. I wish this were
> possible myself. Or more simply:
>
> type T is -- limited or not
> Self : access T := T'Unchecked_Access;
> ...
> end;
T cannot be non-limited, because otherwise passing it by copy would make
rubbish out of Self. In any case it would make little sense if not access
T'Class.
--------------
There is an interesting illegal case of objects bound to a specific storage
pool:
type T is tagged limited private;
private
type T_Ptr is access T'Class;
for T_Ptr'Storage_Pool use ...;
type T is tagged limited record
Self : T_Ptr := T'Unchecked_Access; -- Illegal
end record;
The language requires T_Ptr to be a general access type no matter what.
--
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de
next prev parent reply other threads:[~2007-08-31 19:33 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-04 19:31 Self pointer in limited record Maciej Sobczak
2007-07-05 8:22 ` Dmitry A. Kazakov
2007-07-05 10:35 ` Maciej Sobczak
2007-07-05 11:01 ` Pascal Obry
2007-07-05 11:14 ` Georg Bauhaus
2007-07-05 12:36 ` Dmitry A. Kazakov
2007-08-31 16:47 ` amado.alves
2007-08-31 17:09 ` Pascal Obry
2007-08-31 17:37 ` Adam Beneschan
2007-08-31 18:26 ` Jeffrey R. Carter
2007-08-31 19:33 ` Dmitry A. Kazakov [this message]
2007-09-01 13:33 ` Georg Bauhaus
2007-09-01 13:46 ` Dmitry A. Kazakov
2007-09-01 14:15 ` Georg Bauhaus
2007-09-01 16:03 ` Dmitry A. Kazakov
2007-09-01 19:49 ` Georg Bauhaus
2007-09-01 20:09 ` Dmitry A. Kazakov
2007-09-02 21:37 ` Georg Bauhaus
[not found] ` <re7ei5lc7dzf$.11qtcnh35jmzg$.dlg@40tude.net>
2007-09-03 10:51 ` Georg Bauhaus
2007-09-03 14:17 ` Dmitry A. Kazakov
2007-09-03 15:55 ` Jean-Pierre Rosen
2007-09-03 19:17 ` Dmitry A. Kazakov
2007-09-03 19:32 ` Markus E L
2007-09-03 20:14 ` Georg Bauhaus
2007-09-04 8:24 ` Dmitry A. Kazakov
2007-09-04 9:36 ` Jean-Pierre Rosen
2007-09-04 10:14 ` Dmitry A. Kazakov
2007-09-05 10:49 ` Georg Bauhaus
2007-09-05 12:04 ` Dmitry A. Kazakov
2007-09-05 13:12 ` Jean-Pierre Rosen
2007-09-05 15:10 ` Dmitry A. Kazakov
2007-09-05 16:25 ` Jean-Pierre Rosen
2007-09-05 19:52 ` Dmitry A. Kazakov
2007-09-06 7:19 ` Jean-Pierre Rosen
2007-09-06 9:28 ` Dmitry A. Kazakov
2007-09-06 11:53 ` Jean-Pierre Rosen
2007-09-06 15:35 ` Dmitry A. Kazakov
2007-09-05 18:31 ` Georg Bauhaus
2007-09-05 19:52 ` Dmitry A. Kazakov
2007-09-05 21:38 ` Georg Bauhaus
2007-09-06 7:37 ` Dmitry A. Kazakov
2007-09-06 10:26 ` Georg Bauhaus
2007-09-06 12:25 ` Dmitry A. Kazakov
2007-09-08 1:27 ` Randy Brukardt
2007-09-06 9:14 ` Markus E L
2007-09-06 9:48 ` Dmitry A. Kazakov
2007-09-04 8:23 ` Jean-Pierre Rosen
2007-10-31 23:59 ` adaworks
2007-09-03 20:38 ` Georg Bauhaus
2007-09-04 8:24 ` Dmitry A. Kazakov
2007-09-03 7:54 ` Jean-Pierre Rosen
2007-09-01 15:33 ` Markus E L
2007-09-04 14:55 ` Adam Beneschan
2007-09-04 15:09 ` Jean-Pierre Rosen
2007-09-08 1:36 ` Randy Brukardt
2007-09-04 17:31 ` Georg Bauhaus
2007-09-08 1:16 ` Randy Brukardt
2007-09-10 16:27 ` amado.alves
2007-09-10 17:13 ` Adam Beneschan
2007-09-10 19:00 ` Dmitry A. Kazakov
2007-09-11 3:12 ` Randy Brukardt
2007-09-11 9:38 ` Dmitry A. Kazakov
2007-09-12 21:57 ` Randy Brukardt
2007-09-13 8:03 ` Dmitry A. Kazakov
2007-09-13 21:37 ` Randy Brukardt
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