From: "Martin Dowie" <martin.dowie@btopenworld.com>
Subject: Re: Task discriminants
Date: Tue, 25 May 2004 22:40:00 +0000 (UTC)
Date: 2004-05-25T22:40:00+00:00 [thread overview]
Message-ID: <c90hvv$blh$1@titan.btinternet.com> (raw)
In-Reply-To: 0pGdnb8KMtY7Ni7dRVn-jw@megapath.net
"Randy Brukardt" <randy@rrsoftware.com> wrote in message
news:0pGdnb8KMtY7Ni7dRVn-jw@megapath.net...
> > Absolutely! But that was kind of my question - is there any
implementation
> > that won't give the desired result in this case? Not to my knowledge but
> then
> > I don't have access to every implementation...
>
> I meant even on a particular implementation. A different setting of
> optimization flags, a different expression in the discriminant default,
and
> an implementation that appears to work on your test program could do
> something different. So just because you have some instance of it that
works
> with some particular set of compiler switches does not mean that that
> implementation "gives the desired result" in general. Only your
implementor
> could really tell you, and even they might not know for sure.
Really?!
I'm not sure what you mean by "a different expression in the
discriminant default" - that's always going to be a call to the
function in the example I gave? No?
As to different optimization flags, I would have thought that falls under
the same category "haven't found one yet that does anything other than
the 'sensible' option" - but you never know.
There are other precedents for "polling" to find out what all ARA compiler
vendors do in particular cases - I guess I'd be interested in such a poll.
If
there is already a 'de facto' standard implmentation I don't see any harm
in making it Implementation Advice - I do see the harm in requiring such
behaviour! ;-)
I also recognize that I'm but one (user) voice and that the
ARA/Ada-Comment have better things to do! For me I'm ok with assuming
the 'sensible' option and testing it happens - that may be good enough for
other folks.
Cheers
-- Martin
next prev parent reply other threads:[~2004-05-25 22:40 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-20 14:47 Task discriminants Dave Levy
2004-05-20 17:17 ` David C. Hoos
2004-05-20 18:37 ` Martin Dowie
2004-05-21 0:39 ` Georg Bauhaus
2004-05-21 1:04 ` Jeffrey Carter
2004-05-21 9:43 ` Phil Slater
2004-05-21 12:43 ` Martin Dowie
2004-05-21 19:42 ` Randy Brukardt
2004-05-21 22:05 ` Martin Dowie
[not found] ` <c8luk4$29b$1@hercules.btinternet.com>
2004-05-21 23:16 ` Randy Brukardt
2004-05-22 7:55 ` Martin Dowie
2004-05-24 21:34 ` Randy Brukardt
2004-05-25 5:48 ` Martin Dowie
2004-05-25 20:25 ` Randy Brukardt
2004-05-25 22:40 ` Martin Dowie [this message]
2004-05-20 17:30 ` Martin Krischik
2004-05-21 7:57 ` Dmitry A. Kazakov
2004-06-04 12:59 ` Andersen Jacob Sparre
2004-05-21 16:46 ` Robert I. Eachus
2004-05-22 7:54 ` Martin Dowie
2004-05-22 16:18 ` Pascal Obry
2004-05-24 21:36 ` Randy Brukardt
2004-05-25 21:22 ` Robert I. Eachus
2004-06-04 23:26 ` Nick Roberts
2004-06-07 22:12 ` Karen
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