From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: grassroots thoughts on access types
Date: Sat, 10 Feb 2018 18:19:38 +0100
Date: 2018-02-10T18:19:38+01:00 [thread overview]
Message-ID: <p5n9j8$13jm$1@gioia.aioe.org> (raw)
In-Reply-To: lybmgwn5z0.fsf@pushface.org
On 2018-02-10 17:51, Simon Wright wrote:
> "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> writes:
>
>> On 2018-02-10 12:55, Mehdi Saada wrote:
>>>> Cursors (= pointers)
>>> Based on GNAT RM, "a Cursor, which must a be a type declared in the
>>> container package or visible from it". That's all there is mentioned
>>> about the cursor type. Hence, it doesn't have to involve access
>>> types.
>>> Either I'm right, either I'm wrong, but the RM is unclear.
>>
>> It is semantically a pointer, an object that directly references
>> another object.
>
> And it contains a reference to the container it's a cursor for.
It could if there is a container object. In general case there is none
or it is too expensive to get at the container from its element.
--
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de
next prev parent reply other threads:[~2018-02-10 17:19 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-09 0:46 grassroots thoughts on access types Mehdi Saada
2018-02-09 1:23 ` Randy Brukardt
2018-02-09 9:13 ` Simon Wright
2018-02-09 11:06 ` Dmitry A. Kazakov
2018-02-09 12:09 ` Mehdi Saada
2018-02-09 12:11 ` Mehdi Saada
2018-02-09 14:23 ` Simon Wright
2018-02-09 16:11 ` Mehdi Saada
2018-02-09 17:01 ` Jeffrey R. Carter
2018-02-09 17:19 ` Dmitry A. Kazakov
2018-02-09 19:12 ` Jeffrey R. Carter
2018-02-09 20:17 ` Robert A Duff
2018-02-09 21:44 ` Jeffrey R. Carter
2018-02-09 22:06 ` Dmitry A. Kazakov
2018-02-10 0:43 ` Mehdi Saada
2018-02-10 1:51 ` Mehdi Saada
2018-02-10 10:07 ` Jeffrey R. Carter
2018-02-10 11:57 ` Mehdi Saada
2018-02-10 14:02 ` Simon Wright
2018-02-10 15:32 ` Jeffrey R. Carter
2018-02-10 16:46 ` Mehdi Saada
2018-02-10 8:28 ` Dmitry A. Kazakov
2018-02-10 11:55 ` Mehdi Saada
2018-02-10 14:35 ` Dmitry A. Kazakov
2018-02-10 16:51 ` Simon Wright
2018-02-10 17:19 ` Dmitry A. Kazakov [this message]
2018-02-10 10:03 ` Jeffrey R. Carter
2018-02-10 10:36 ` Dmitry A. Kazakov
2018-02-10 11:12 ` Jeffrey R. Carter
2018-02-10 14:44 ` Dmitry A. Kazakov
2018-02-10 21:16 ` Robert A Duff
2018-02-11 10:47 ` Jeffrey R. Carter
2018-02-11 21:51 ` Robert A Duff
2018-02-09 20:58 ` Shark8
2018-02-09 20:32 ` G. B.
2018-02-09 20:53 ` Mehdi Saada
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