From: dennison@telepath.com
Subject: Re: What's wrong with this code?
Date: 1999/04/20
Date: 1999-04-20T00:00:00+00:00 [thread overview]
Message-ID: <7fiegr$43q$1@nnrp1.dejanews.com> (raw)
In-Reply-To: 7fi85m$sb3$1@nnrp1.dejanews.com
In article <7fi85m$sb3$1@nnrp1.dejanews.com>,
okellogg@my-dejanews.com wrote:
> Dear colleagues:
>
> I can't find what wrong with this code (see full declaration of type Alarm.)
> Perhaps someone would like to comment?
> type Alarm is tagged limited
> record
> -- This compiles alright:
> Semaphore : Alarm_Semaphore (Alarm'Access);
>
> -- But here, GNAT 3.11p says:
> -- "Access" attribute cannot be applied to type
> Alarm_State_Pool : Alarm_State_Pool_At :=
> (Snafu => new Snafu_State (Alarm'Access),
> Data => new Data_State (Alarm'Access),
> Proposal => new Proposal_State (Alarm'Access));
>
> end record;
>
> end Alarm_Model;
That's probably because 'Access can't be applied to a type. :-)
What is it you are trying to accomplish with Alarm'Access? Surely you don't
want a pointer into the compiler's type table for "Alarm", which is about the
only thing this could mean. Perhaps you are hoping to automaticly get a
pointer to the *object* in question when you create objects of this type?
The contexts under which 'Access may be used are listed in Annex K of the LRM
( http://www.adahome.com/rm95/rm9x-K.html ). Its prefix may be a subprogram,
object, or label.
--
T.E.D.
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next prev parent reply other threads:[~1999-04-20 0:00 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-04-20 0:00 What's wrong with this code? okellogg
1999-04-20 0:00 ` dennison [this message]
1999-04-20 0:00 ` Matthew Heaney
1999-04-20 0:00 ` dennison
1999-04-20 0:00 ` Matthew Heaney
1999-04-21 0:00 ` dennison
1999-04-21 0:00 ` Stephen Leake
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