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From: Mats Weber <matsw@mail.com>
Subject: Re: Help Me Please :)
Date: 2000/03/30
Date: 2000-03-30T17:07:36+00:00	[thread overview]
Message-ID: <38E389D7.5CD82114@mail.com> (raw)
In-Reply-To: 8brm79$jm3$1@slb6.atl.mindspring.net

Richard D Riehle wrote:

> And what would be the parameter type(s)?  Are you suggesting an
> exception defined with parameters in the same way one defines
> subprograms?  That would seem to increase complexity of both the
> compiler design and the resulting applications.  It is an increase
> in complexity that seems unnecessary under any but the most unusual
> circumstances.

I think the increase in complexity is already present in Ada.Exceptions.
Implementations have to reserve space for and pass that string around,
so I don't see why one could not pass other types.

I made a proposal for this in my thesis, you can have a look at it at:
http://lglwww.epfl.ch/Team/MW/Ada-Extensions/Ada-Extensions.html#RTFToC99
it's really not that complicated.

Without this mechanism, it is quite hard to interface systems like POSIX
in a clean way, where there is a single exception + an error code. With
parameterized exceptions, it is very easy.




  parent reply	other threads:[~2000-03-30  0:00 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2000-02-29  0:00 Help Me Please :) Will Mann
2000-03-01  0:00 ` Robert Dewar
2000-03-03  0:00   ` Florian Weimer
2000-03-03  0:00     ` tmoran
2000-03-04  0:00       ` Richard D Riehle
2000-03-05  0:00         ` Steve Arnold
2000-03-17  0:00         ` Robert A Duff
2000-03-18  0:00           ` Richard D Riehle
2000-03-18  0:00           ` James S. Rogers
2000-03-19  0:00             ` Robert A Duff
2000-03-20  0:00               ` Brian Rogoff
2000-03-20  0:00                 ` Tucker Taft
2000-03-20  0:00           ` Florian Weimer
2000-03-22  0:00           ` Mats Weber
2000-03-27  0:00             ` Robert A Duff
2000-03-27  0:00               ` Hyman Rosen
2000-03-28  0:00               ` reason67
2000-03-28  0:00                 ` Robert Dewar
2000-03-29  0:00                   ` Simon Wright
2000-03-29  0:00                   ` reason67
2000-04-06  0:00                   ` Simon Pilgrim
2000-04-07  0:00                     ` Robert Dewar
2000-04-10  0:00                       ` r_c_chapman
2000-03-28  0:00               ` Robert Dewar
2000-03-30  0:00                 ` Mats Weber
2000-04-06  0:00                   ` Exceptions (was: " Wes Groleau
2000-04-07  0:00                     ` Mats Weber
2000-03-29  0:00               ` Richard D Riehle
2000-03-29  0:00                 ` Robert Dewar
2000-03-31  0:00                   ` Richard D Riehle
2000-03-31  0:00                     ` Jean-Pierre Rosen
2000-03-31  0:00                       ` Pascal Obry
2000-03-30  0:00                 ` Mats Weber [this message]
2000-03-31  0:00                   ` Richard D Riehle
2000-04-06  0:00                 ` Wes Groleau
2000-03-30  0:00               ` Tucker Taft
2000-03-30  0:00               ` Mats Weber
     [not found]     ` <2000Mar3.183321.69279@ludens>
2000-03-03  0:00       ` Larry Kilgallen
2000-03-04  0:00       ` Robert Dewar
  -- strict thread matches above, loose matches on Subject: below --
2000-02-29  0:00 Will Mann
2000-02-29  0:00 ` Stanley R. Allen
2000-02-29  0:00   ` Al Johnston
2000-03-01  0:00     ` Robert Dewar
2000-03-01  0:00     ` tmoran
2000-03-01  0:00       ` Al Johnston
2000-03-02  0:00       ` Aidan Skinner
2000-03-01  0:00     ` Robert Dewar
2000-03-01  0:00       ` Al Johnston
2000-03-01  0:00     ` Stanley R. Allen
2000-03-01  0:00 ` tmoran
2000-03-01  0:00 ` James Bean
     [not found] <df481109.0106140310.5d923746@posting.google.com>
     [not found] ` <9gb1uu$87u7o$1@ID-52877.news.dfncis.de>
2001-06-19  2:59   ` help me please! Ken Garlington
2001-06-16 10:20     ` C.D.Damron
2001-06-20  6:06     ` John Keeney
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