From: Stephen Leake <stephen_leake@stephe-leake.org>
Subject: Re: Ada 'hello world' for Android; success!
Date: Tue, 01 Nov 2011 04:41:27 -0400
Date: 2011-11-01T04:41:27-04:00 [thread overview]
Message-ID: <8239e8nsjs.fsf@stephe-leake.org> (raw)
In-Reply-To: j8n7qa$c4l$1@munin.nbi.dk
"Randy Brukardt" <randy@rrsoftware.com> writes:
> "Stephen Leake" <stephen_leake@stephe-leake.org> wrote in message
> news:82mxciogt0.fsf@stephe-leake.org...
> ...
>> In brief, _any_ framework that uses dispatching on class-wide
>> objects needs reference semantics. In Ada, that is indicated by the
>> explicit word 'access'. In Java, it is implicit. I prefer explicit.
>
> I don't follow this. All tagged objects in Ada are by-reference, so you
> never need explicit "access" for parameter passing.
Yes, but that's not the meaning of "reference semantics" I intended; I
mean "an explicit pointer of some sort".
> And class-wide objects can be stored in the Ada containers without
> using "access" as well.
In which case a Cursor provides the explicit pointer.
We've been around on this before; see
http://stephe-leake.org/ada/access_vs_object.html
I guess it's time to update that with Ada 2012 features.
--
-- Stephe
next prev parent reply other threads:[~2011-11-01 8:41 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-27 1:18 Ada 'hello world' for Android; success! Stephen Leake
2011-10-27 7:12 ` Alex R. Mosteo
2011-10-28 12:51 ` Stephen Leake
2011-10-27 10:50 ` Jeffrey Creem
2011-10-28 13:01 ` Stephen Leake
2011-10-27 10:58 ` Brian Drummond
2011-10-28 1:37 ` Shark8
2011-10-28 12:22 ` Anatoly Chernyshev
2011-10-29 13:37 ` Stephen Leake
2011-10-29 14:46 ` Anatoly Chernyshev
2011-10-29 20:47 ` Brad Moore
2011-10-29 21:59 ` Anatoly Chernyshev
2011-10-30 3:51 ` Brad Moore
2011-10-30 7:20 ` Anatoly Chernyshev
2011-10-30 10:56 ` Stephen Leake
2011-10-30 17:32 ` Brad Moore
2011-10-29 15:32 ` Georg Bauhaus
2011-10-29 16:09 ` Simon Wright
2011-10-29 17:32 ` tmoran
2011-10-30 11:38 ` Stephen Leake
2011-10-29 20:51 ` Brad Moore
2011-10-30 11:32 ` Stephen Leake
2011-10-31 22:34 ` Randy Brukardt
2011-11-01 8:41 ` Stephen Leake [this message]
2011-11-01 9:30 ` Georg Bauhaus
2011-11-02 15:55 ` Stephen Leake
2011-11-02 17:37 ` Robert A Duff
2011-11-08 3:56 ` Randy Brukardt
2011-11-03 0:37 ` Georg Bauhaus
2011-11-03 11:36 ` Stephen Leake
2011-11-03 15:24 ` Robert A Duff
2011-11-03 18:43 ` Pascal Obry
2011-11-03 22:14 ` Georg Bauhaus
2011-11-04 8:48 ` Dmitry A. Kazakov
2011-11-04 12:18 ` Stephen Leake
2011-11-04 15:03 ` Georg Bauhaus
2011-11-05 16:56 ` Stephen Leake
2011-11-01 9:52 ` Dmitry A. Kazakov
2011-11-02 15:59 ` Stephen Leake
2011-11-02 16:27 ` Dmitry A. Kazakov
2011-11-02 17:38 ` Simon Wright
2011-11-10 17:25 ` Stephen Leake
2011-11-27 15:18 ` mockturtle
2011-11-28 22:35 ` Ada 'hello world' for Android; success! (but music player failure) Stephen Leake
2011-11-29 11:23 ` Georg Bauhaus
2011-11-30 3:33 ` Stephen Leake
2011-11-30 18:57 ` Georg Bauhaus
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