From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Pass by reference
Date: Tue, 13 Apr 2004 10:46:13 +0200
Date: 2004-04-13T10:46:13+02:00 [thread overview]
Message-ID: <c5g9cv$18adf$1@ID-77047.news.uni-berlin.de> (raw)
In-Reply-To: 871xmtv0pz.fsf@beeblebrox.enst.fr
Samuel Tardieu wrote:
>>>>>> "Dmitry" == Dmitry A Kazakov <mailbox@dmitry-kazakov.de> writes:
>
> Dmitry> When T is in a register it might be more efficient than
> Dmitry> by-reference. But let the compiler decide it knows better.
>
> If T is an object, its tag alone (likely to be an address in many
> implementations) will already take the whole space in the register.
The beauty of Ada's OO concept is that T need not to have any tag, as
opposed to T'Class. With by-reference parameter passing it is almost no
matter, but for by-copy one it makes much sense to keep T and T'Tag
separate. For example, one could have Boolean and Boolean'Class.
--
Regards,
Dmitry A. Kazakov
www.dmitry-kazakov.de
next prev parent reply other threads:[~2004-04-13 8:46 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-08 14:52 Pass by reference Dan McLeran
2004-04-08 18:21 ` Martin Krischik
2004-04-09 12:53 ` Dan McLeran
2004-04-13 12:42 ` Martin Krischik
2004-04-08 19:04 ` Jim Rogers
2004-04-09 3:24 ` Dan McLeran
2004-04-09 0:01 ` Stephen Leake
2004-04-09 12:38 ` Dan McLeran
2004-04-09 13:03 ` Dmitry A. Kazakov
2004-04-09 19:09 ` Dan McLeran
2004-04-10 10:49 ` Dmitry A. Kazakov
2004-04-11 12:43 ` Florian Weimer
2004-04-12 10:29 ` Dmitry A. Kazakov
2004-04-12 12:29 ` Samuel Tardieu
2004-04-13 8:46 ` Dmitry A. Kazakov [this message]
2004-04-10 1:42 ` Stephen Leake
2004-04-10 16:05 ` chris
2004-04-09 12:44 ` Dan McLeran
2004-04-09 22:44 ` Randy Brukardt
2004-04-09 14:44 ` Simon Wright
2004-04-09 1:15 ` Jeffrey Carter
2004-04-09 1:28 ` Pat Rogers
2004-04-10 1:05 ` Jeffrey Carter
2004-04-09 12:57 ` Dan McLeran
2004-04-10 1:16 ` Jeffrey Carter
2004-04-09 4:03 ` Steve
2004-04-09 14:50 ` Simon Wright
2004-04-09 17:12 ` Pat Rogers
2004-04-09 19:33 ` Vinzent 'Gadget' Hoefler
2004-04-10 6:33 ` Simon Wright
2004-04-13 10:26 ` Vinzent 'Gadget' Hoefler
2004-04-14 17:27 ` Simon Wright
2004-04-15 9:43 ` Vinzent 'Gadget' Hoefler
2004-04-17 7:59 ` Simon Wright
2004-04-11 12:45 ` Florian Weimer
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