From: Mats Weber <Mats.Weber@elca-matrix.ch>
Subject: Re: Equality operator overloading in ADA 83
Date: 1997/04/29
Date: 1997-04-29T00:00:00+00:00 [thread overview]
Message-ID: <3365C805.73CF@elca-matrix.ch> (raw)
In-Reply-To: 01bc5244$315f1560$28f982c1@xhv46.dial.pipex.com
Nick Roberts wrote:
> As to the property of mutual exclusion - this is the 'essence' of the case
> statement - the implementation would probably have to test every choice at
> run time in order to check that only one choice evaluates to True (and
> raise an exception otherwise). [...]
The language definition is not based on any concept like "the essence of
the case statement". I don't see any problem with taking the first
alternative that fits, like in a UNIX shell, where case does not follow
the "essence" but is still very useful (OK, I know, we were talking
programming languages :-).
Anyway I think that checking the mutual exclusion of case alternatives
at run time would be a waste of resources. Doing so at compile time in
the static case is a very good feature, and that's why I think the
static case should be kept as it is now.
next prev parent reply other threads:[~1997-04-29 0:00 UTC|newest]
Thread overview: 114+ messages / expand[flat|nested] mbox.gz Atom feed top
1997-04-21 0:00 Equality operator overloading in ADA 83 Manuel Wenger
1997-04-22 0:00 ` Matthew Heaney
1997-04-22 0:00 ` Philip Brashear
1997-04-22 0:00 ` Mats Weber
1997-04-22 0:00 ` Robert A Duff
1997-04-22 0:00 ` Matthew Heaney
1997-04-23 0:00 ` Mats Weber
1997-04-23 0:00 ` Robert A Duff
1997-04-24 0:00 ` Mats Weber
1997-04-24 0:00 ` Robert A Duff
1997-04-24 0:00 ` Robert Dewar
1997-04-25 0:00 ` Robert A Duff
1997-04-26 0:00 ` Nick Roberts
1997-04-26 0:00 ` Robert A Duff
1997-04-26 0:00 ` Robert Dewar
1997-04-27 0:00 ` Robert A Duff
1997-04-26 0:00 ` Robert Dewar
1997-04-28 0:00 ` Simon Wright
1997-04-29 0:00 ` Robert I. Eachus
1997-04-26 0:00 ` Robert Dewar
1997-04-26 0:00 ` Matthew Heaney
1997-05-02 0:00 ` Nick Roberts
1997-05-04 0:00 ` Robert Dewar
1997-05-05 0:00 ` Mats Weber
1997-05-05 0:00 ` Robert Dewar
1997-05-06 0:00 ` Matthew Heaney
1997-05-06 0:00 ` Robert Dewar
1997-05-07 0:00 ` Tucker Taft
1997-05-05 0:00 ` Robert A Duff
1997-04-29 0:00 ` Mats Weber [this message]
1997-05-01 0:00 ` Robert Dewar
[not found] ` <01bc571c$01f3ffc0$5de2b8cd@p5120.bda>
1997-05-03 0:00 ` Robert Dewar
1997-04-27 0:00 ` Robert Dewar
1997-04-27 0:00 ` Fergus Henderson
1997-04-27 0:00 ` Robert Dewar
1997-04-28 0:00 ` Fergus Henderson
1997-04-28 0:00 ` Robert Dewar
1997-04-25 0:00 ` Kevin Cline
1997-04-25 0:00 ` Robert A Duff
1997-04-25 0:00 ` Mats Weber
1997-04-25 0:00 ` Robert Dewar
1997-04-29 0:00 ` Mats Weber
1997-05-01 0:00 ` Robert Dewar
1997-04-25 0:00 ` Mats Weber
1997-04-27 0:00 ` Robert Dewar
1997-04-29 0:00 ` Mats Weber
1997-04-25 0:00 ` Mats Weber
1997-04-27 0:00 ` Geert Bosch
1997-04-24 0:00 ` Matthew Heaney
1997-04-25 0:00 ` Robert Dewar
1997-04-25 0:00 ` Matthew Heaney
1997-04-26 0:00 ` Robert A Duff
1997-04-26 0:00 ` Robert Dewar
1997-04-25 0:00 ` Robert Dewar
1997-04-25 0:00 ` Matthew Heaney
1997-04-26 0:00 ` Robert Dewar
1997-04-26 0:00 ` Fergus Henderson
1997-04-26 0:00 ` Robert A Duff
1997-04-26 0:00 ` Robert Dewar
1997-04-27 0:00 ` Robert Dewar
1997-04-28 0:00 ` Robert Dewar
1997-04-28 0:00 ` Robert Dewar
1997-04-29 0:00 ` Mats Weber
1997-04-29 0:00 ` Robert A Duff
1997-04-29 0:00 ` Matthew Heaney
1997-05-02 0:00 ` Tucker Taft
1997-05-02 0:00 ` Robert Dewar
1997-05-02 0:00 ` Robert A Duff
1997-05-03 0:00 ` Robert Dewar
1997-05-01 0:00 ` Robert Dewar
1997-04-29 0:00 ` Matthew Heaney
1997-05-01 0:00 ` Robert Dewar
1997-04-23 0:00 ` Robert Dewar
1997-04-24 0:00 ` Robert A Duff
1997-04-29 0:00 ` Mats Weber
1997-05-01 0:00 ` Robert Dewar
1997-04-24 0:00 ` Robert Dewar
1997-04-22 0:00 ` Mats Weber
1997-04-22 0:00 ` Matthew Heaney
1997-04-23 0:00 ` Mats Weber
1997-04-23 0:00 ` Robert A Duff
1997-04-25 0:00 ` Kevin Cline
1997-04-25 0:00 ` Robert A Duff
1997-04-25 0:00 ` Matthew Heaney
1997-04-25 0:00 ` Robert A Duff
1997-04-25 0:00 ` Jon S Anthony
1997-04-27 0:00 ` Robert Dewar
1997-04-28 0:00 ` Robert I. Eachus
1997-04-29 0:00 ` Jon S Anthony
1997-04-26 0:00 ` Robert Dewar
1997-04-27 0:00 ` Matthew Heaney
1997-04-27 0:00 ` Robert A Duff
1997-04-26 0:00 ` Robert Dewar
1997-04-26 0:00 ` Matthew Heaney
1997-04-24 0:00 ` Robert Dewar
1997-04-24 0:00 ` Robert A Duff
1997-04-25 0:00 ` Robert Dewar
1997-04-25 0:00 ` Matthew Heaney
1997-04-26 0:00 ` Robert Dewar
1997-04-26 0:00 ` Robert A Duff
1997-04-26 0:00 ` Robert Dewar
1997-04-26 0:00 ` Matthew Heaney
1997-04-27 0:00 ` Robert Dewar
1997-04-27 0:00 ` Robert A Duff
1997-04-26 0:00 ` Robert Dewar
1997-05-02 0:00 ` Nick Roberts
1997-05-04 0:00 ` Robert Dewar
1997-04-26 0:00 ` Robert Dewar
1997-04-26 0:00 ` Matthew Heaney
1997-04-27 0:00 ` Robert A Duff
1997-04-22 0:00 ` Kevin Cline
1997-04-22 0:00 ` Mark A Biggar
1997-04-24 0:00 ` Keith Thompson
1997-04-22 0:00 ` Mats Weber
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