comp.lang.ada
 help / color / mirror / Atom feed
From: mheaney@ni.net (Matthew Heaney)
Subject: Re: limited/non-limited in Ada95
Date: 1997/10/18
Date: 1997-10-18T00:00:00+00:00	[thread overview]
Message-ID: <mheaney-ya023680001810971645020001@news.ni.net> (raw)
In-Reply-To: 3449390f.142507@SantaClara01.news.InterNex.Net


In article <3449390f.142507@SantaClara01.news.InterNex.Net>, tmoran@bix.com
(Tom Moran) wrote:

>>important capabilities of limited types
>The one that bit me most recently was that you can't have access
>values as discriminants of non-limited types.

Yeah, a pain, but will this work?

type DT is ...;
type DT_Access is access all DT;

type T (D : DT_Access) is private;

You can then use Unchecked_Access:

declare
   D : aliased DT;
   O : T (D'Unchecked_Access);
begin

Will that do what you want?

--------------------------------------------------------------------
Matthew Heaney
Software Development Consultant
<mailto:matthew_heaney@acm.org>
(818) 985-1271




  reply	other threads:[~1997-10-18  0:00 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1997-10-13  0:00 limited/non-limited in Ada95 Tom Moran
1997-10-16  0:00 ` Matthew Heaney
1997-10-17  0:00   ` Jon S Anthony
1997-10-18  0:00     ` Matthew Heaney
1997-10-21  0:00       ` Jon S Anthony
1997-10-21  0:00         ` Robert A Duff
1997-10-22  0:00           ` Robert Dewar
1997-10-22  0:00             ` Jon S Anthony
1997-10-22  0:00           ` Jon S Anthony
1997-10-23  0:00             ` Fergus Henderson
1997-10-23  0:00               ` Jon S Anthony
1997-10-23  0:00               ` Jon S Anthony
1997-10-24  0:00                 ` Geert Bosch
1997-10-21  0:00         ` Robert Dewar
1997-10-21  0:00           ` Jon S Anthony
1997-10-22  0:00             ` Robert Dewar
1997-10-22  0:00               ` Jon S Anthony
1997-10-18  0:00     ` Tom Moran
1997-10-18  0:00       ` Matthew Heaney [this message]
1997-10-19  0:00         ` Tom Moran
1997-10-19  0:00           ` Matthew Heaney
1997-10-21  0:00             ` Tom Moran
1997-10-21  0:00               ` Matthew Heaney
1997-10-21  0:00         ` Robert A Duff
1997-10-21  0:00   ` Robert A Duff
replies disabled

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox