From: dennison@telepath.com
Subject: Re: "out" or "access"
Date: 1998/10/30
Date: 1998-10-30T00:00:00+00:00 [thread overview]
Message-ID: <71cjab$ka8$1@nnrp1.dejanews.com> (raw)
In-Reply-To: wcc3e87hrl8.fsf@world.std.com
In article <wcc3e87hrl8.fsf@world.std.com>,
Robert A Duff <bobduff@world.std.com> wrote:
> But how about this workaround: declare New_Iterator to take an 'in'
> parameter of type Root_Queue. (Presuming you really do want an iterator
> that can't modify the thing it's iterating over.) So it's dispatching,
> which you want. Inside the various overridings of it, you will normally
> have to do 'Unchecked_Access to produce a pointer to the thing, which
I must be missing something here. Isn't it possible that taking an
'Unchecked_Access of an in parameter will just give you a pointer to a copy of
the object on the stack, which will disappear when the procedure ends? Or are
you saying to do a ".all'Unchecked_Access" on the in parameter?
--
T.E.D.
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next prev parent reply other threads:[~1998-10-30 0:00 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-10-21 0:00 "out" or "access" =:-) Vincent
1998-10-21 0:00 ` Tucker Taft
1998-10-22 0:00 ` Pascal Obry
1998-10-29 0:00 ` Robert A Duff
1998-10-29 0:00 ` Matthew Heaney
1998-10-29 0:00 ` Robert A Duff
1998-10-30 0:00 ` dennison [this message]
1998-10-30 0:00 ` Matthew Heaney
1998-10-30 0:00 ` Robert A Duff
1998-10-31 0:00 ` dewar
1998-10-31 0:00 ` Matthew Heaney
1998-10-31 0:00 ` Matthew Heaney
1998-11-01 0:00 ` Robert A Duff
1998-11-01 0:00 ` Matthew Heaney
1998-11-01 0:00 ` Robert A Duff
1998-11-02 0:00 ` Matthew Heaney
1998-11-03 0:00 ` Simon Wright
1998-11-16 0:00 ` Matthew Heaney
1998-10-21 0:00 ` dennison
1998-10-21 0:00 ` Jeff Carter
1998-10-21 0:00 ` Pat Rogers
1998-10-21 0:00 ` Martin C. Carlisle
1998-10-22 0:00 ` Pat Rogers
1998-10-22 0:00 ` Robert A Duff
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