From: Robert A Duff <bobduff@world.std.com>
Subject: Re: Are there any automatic tools to convert ada83 source into ada95?
Date: 1998/12/31
Date: 1998-12-31T00:00:00+00:00 [thread overview]
Message-ID: <wcciues2nat.fsf@world.std.com> (raw)
In-Reply-To: wccogolwoj1.fsf@world.std.com
I wrote:
> X := abs(X);
>
> According to the Ada 83 RM, the above statement might raise either C_E
> or P_E. Any code that tries to distinguish the two is, as Robert said,
> "dubious".
>
> In Ada 95, it raises C_E (and P_E is just a renaming of C_E).
>
> A good style in Ada 83 was to always pair the two: "when C_E | P_E =>
> ...". The Ada 95 rules are carefully crafted to make that idiom
> still be legal.
Oops, I meant N_E (Numeric_Error), not Program_Error above. Thanks to
Art Evans for pointing that out.
- Bob
--
Change robert to bob to get my real email address. Sorry.
next prev parent reply other threads:[~1998-12-31 0:00 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-12-28 0:00 Are there any automatic tools to convert ada83 source into ada95? changweimin
1998-12-28 0:00 ` Tucker Taft
1998-12-28 0:00 ` Chris Morgan
1998-12-29 0:00 ` robert_dewar
1998-12-29 0:00 ` Chris Morgan
1998-12-30 0:00 ` Robert A Duff
1998-12-31 0:00 ` Robert A Duff [this message]
-- strict thread matches above, loose matches on Subject: below --
1998-12-28 0:00 changweimin
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