From: Robert Dewar <robert_dewar@my-deja.com>
Subject: Re: Function Calls by Address
Date: 1999/09/06
Date: 1999-09-06T00:00:00+00:00 [thread overview]
Message-ID: <7r1cd4$9dn$1@nnrp1.deja.com> (raw)
In-Reply-To: 37D41767.CEB186F4@magic.fr
In article <37D41767.CEB186F4@magic.fr>,
Francois Godme <fgodme@magic.fr> wrote:
> Robert Dewar wrote:
>
> Robert, please can you be less enigmatic. I do not see why it
> is not relevant.
>
> Is it wrong to think that Machine_State_Operations gathered
methods that
> apply on a Machine_State, as its own name may imply? Is it
wrong to
> think that an abstract tagged type could fill the same
purpose, if it
> was allowed in this context?
The point of subunits is to encapsulate locally, whether tagged
types are used or not is an orthogonal issue. Personally I would
find the use of tagged types for this particular purpose to be
a case of clobbering a fly with a sledge hammer, I don't see
that it would add anything. But as I say, the issue is one of
encapsulation. This functionality is strictly local to the
body of ada-exceptions, and subunits capture this relationship
in a natural way.
> By the way, it seems to me that your example only stands as a
> justification for the use of the separate construct in a
language subset
> we don't write programs with, the subset of the Ada language
allowed to
> write the GNAT runtime.
Let me know where you learned of this subset. I have no
awareness of any such restrictions :-)
Certainly we are free to use tagged types if we want to in
the runtime, see for example the way the I/O routines are
programmed and the type File_Type is handled.
Robert Dewar
Sent via Deja.com http://www.deja.com/
Share what you know. Learn what you don't.
next prev parent reply other threads:[~1999-09-06 0:00 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-08-30 0:00 Function Calls by Address Craig Jameson
1999-08-30 0:00 ` Robert Dewar
1999-08-30 0:00 ` Robert Dewar
1999-08-31 0:00 ` Martin Gangkofer
1999-08-30 0:00 ` Marin David Condic
1999-08-30 0:00 ` Marin David Condic
1999-08-30 0:00 ` Larry Kilgallen
1999-08-30 0:00 ` Robert Dewar
1999-08-31 0:00 ` David Kristola
1999-08-31 0:00 ` Matthew Heaney
1999-09-01 0:00 ` Simon Wright
1999-09-02 0:00 ` Francois Godme
1999-09-03 0:00 ` Robert Dewar
1999-09-03 0:00 ` Francois Godme
1999-09-03 0:00 ` David C. Hoos, Sr.
1999-09-04 0:00 ` Robert Dewar
1999-09-05 0:00 ` Francois Godme
1999-09-06 0:00 ` Robert Dewar
1999-09-06 0:00 ` Francois Godme
1999-09-06 0:00 ` Robert Dewar [this message]
1999-09-06 0:00 ` Robert Dewar
1999-09-06 0:00 ` Bob Collins
1999-09-07 0:00 ` Pascal Obry
1999-09-07 0:00 ` Pascal Obry
1999-09-07 0:00 ` Francois Godme
1999-09-08 0:00 ` Francois Godme
1999-09-03 0:00 ` Marin David Condic
1999-09-14 0:00 ` Robert I. Eachus
[not found] ` <wcc3dwgb7ii.fsf@world.std.com>
[not found] ` <37E81079.CC2566D9@mitre.org>
1999-09-22 0:00 ` Robert A Duff
1999-09-22 0:00 ` Robert I. Eachus
1999-09-23 0:00 ` Robert Dewar
1999-09-23 0:00 ` Robert A Duff
1999-09-03 0:00 ` Robert Dewar
1999-09-03 0:00 ` Ted Dennison
1999-09-04 0:00 ` Jean-Pierre Rosen
1999-09-05 0:00 ` Matthew Heaney
1999-09-05 0:00 ` Ehud Lamm
1999-09-04 0:00 ` Brian Rogoff
1999-09-05 0:00 ` Robert Dewar
1999-09-05 0:00 ` Robert Dewar
1999-09-05 0:00 ` Robert Dewar
1999-09-03 0:00 ` Simon Wright
1999-09-04 0:00 ` Mario Klebsch
1999-09-05 0:00 ` Robert Dewar
1999-09-06 0:00 ` Francois Godme
1999-09-05 0:00 ` Brian Rogoff
1999-09-06 0:00 ` Robert Dewar
1999-09-08 0:00 ` Georg Bauhaus
1999-09-05 0:00 ` Geoff Bull
1999-09-07 0:00 ` Michael F. Yoder
replies disabled
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox