From: dewar@gnat.com
Subject: Re: Ada.Exceptions could be 'pragma Preelaborate' ?
Date: 1998/10/31
Date: 1998-10-31T00:00:00+00:00 [thread overview]
Message-ID: <71fol7$r63$1@nnrp1.dejanews.com> (raw)
In-Reply-To: wccn26dvfgi.fsf@world.std.com
In article <wccn26dvfgi.fsf@world.std.com>,
Robert A Duff <bobduff@world.std.com> wrote:
> Stephen Leake <Stephen.Leake@gsfc.nasa.gov> writes:
>
> > Currently, Ada.Exceptions has no elaboration pragma, and thus any unit
> > that 'withs' Ada.Exceptions cannot have 'pragma Preelaborate'. This is
> > a pain; I'm building a nice library, everything is either Pure or
> > Preelaborate, but then I start adding nice error messages to my
> > exceptions, and I have to get rid of the pragmas. I started replacing
> > Preelaborate with Elaborate_Body, and got some circular elaboration
> > problems.
>
> Yeah, that's a problem. Similarly, if you want to put debugging
> print-outs into a pragma-Pure package, you can't.
A little note for GNAT users:
The I/O package GNAT.IO is preelaborable. This is a convenient subset of
Text_IO features, perfectly adequate for debugging use.
Robert Dewar
Ada Core Technologies
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next prev parent reply other threads:[~1998-10-31 0:00 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-10-30 0:00 Ada.Exceptions could be 'pragma Preelaborate' ? Stephen Leake
1998-10-30 0:00 ` Robert A Duff
1998-10-31 0:00 ` dewar [this message]
1998-11-04 0:00 ` Michel Gauthier
1998-11-04 0:00 ` dewar
1998-10-30 0:00 ` Tucker Taft
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