From: Robert A Duff <bobduff@world.std.com>
Subject: Re: generic package dilemma
Date: 1999/11/22
Date: 1999-11-22T00:00:00+00:00 [thread overview]
Message-ID: <wcczow6flxa.fsf@world.std.com> (raw)
In-Reply-To: 81bt4v$7cr$1@nnrp1.deja.com
Robert Dewar <robert_dewar@my-deja.com> writes:
> We have lots of cases of legacy code, particularly Verdix code,
> where the programmers were, quite unknowingly relying on
> non-portable behavior. It is very bad programming practice
> to omit the pragmas (*).
But without some help from the compiler, it's quite difficult to get
them right.
>... In one hard, we had one customer
> with a large code who spent quite a bit of time running the
> program and finding out one bug after another of omitted pragma
> Elaborate's causing Program_Error.
And maybe some of those Program_Errors happen inside tasks, where the
default behavior is to silently kill the offending task? :-(
> The story here is that basically we all agreed, but we also
> agreed that trying to do this in a reasonably upwards compatible
> manner was far from easy, and there simply was not enough time
> available in the course of the Ada 95 design.
I've thought about the problem a lot since 1995, and I have yet to come
up with an upward compatible solution that is also "good" in all the
other respects I'd like.
- Bob
next prev parent reply other threads:[~1999-11-22 0:00 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-11-17 0:00 generic package dilemma Riyaz Mansoor
1999-11-17 0:00 ` Matthew Heaney
1999-11-17 0:00 ` Mats Weber
1999-11-17 0:00 ` Matthew Heaney
1999-11-18 0:00 ` Mats Weber
1999-11-18 0:00 ` Matthew Heaney
1999-11-19 0:00 ` Mats Weber
1999-11-19 0:00 ` Matthew Heaney
1999-11-19 0:00 ` Mats Weber
1999-11-22 0:00 ` Robert Dewar
1999-11-22 0:00 ` Larry Kilgallen
1999-11-23 0:00 ` Robert Dewar
1999-11-22 0:00 ` Mats Weber
1999-11-22 0:00 ` Robert A Duff
1999-11-23 0:00 ` Robert Dewar
1999-12-01 0:00 ` Robert I. Eachus
1999-12-01 0:00 ` Robert I. Eachus
1999-11-22 0:00 ` Robert A Duff [this message]
1999-11-23 0:00 ` Robert Dewar
1999-11-29 0:00 ` Robert A Duff
1999-12-01 0:00 ` Robert Dewar
1999-12-01 0:00 ` Robert A Duff
1999-12-02 0:00 ` Mats Weber
1999-12-03 0:00 ` Robert Dewar
1999-12-03 0:00 ` Ted Dennison
1999-12-04 0:00 ` Robert Dewar
1999-12-03 0:00 ` Robert A Duff
1999-12-06 0:00 ` Robert Dewar
1999-11-22 0:00 ` Mats Weber
1999-11-22 0:00 ` Bryce Bardin
1999-11-23 0:00 ` Robert Dewar
1999-11-19 0:00 ` Robert Dewar
1999-11-19 0:00 ` Robert I. Eachus
1999-11-22 0:00 ` Robert Dewar
1999-11-22 0:00 ` Matthew Heaney
1999-11-19 0:00 ` Matthew Heaney
1999-11-20 0:00 ` Mats Weber
1999-11-19 0:00 ` Vladimir Olensky
1999-11-18 0:00 ` Robert A Duff
1999-11-18 0:00 ` Matthew Heaney
1999-11-19 0:00 ` Robert Dewar
1999-11-18 0:00 ` Riyaz Mansoor
1999-11-19 0:00 ` Robert Dewar
1999-11-19 0:00 ` Robert Dewar
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