From: Kilgallen@SpamCop.net (Larry Kilgallen)
Subject: Re: status of PL/I as a viable language
Date: 20 Feb 2003 16:34:43 -0600
Date: 2003-02-20T16:34:43-06:00 [thread overview]
Message-ID: <oUDTUaOQ$qt1@eisner.encompasserve.org> (raw)
In-Reply-To: 42EA55F4BE83950E.F1DA277C2FDC157B.C804C1C52FE95D65@lp.airnews.net
In article <3E554AF4.C8F0EF2E@yahoo.com>, Peter Flass <peter_flass@yahoo.com> writes:
> "John R. Strohm" wrote:
>> The last bug I found and fixed at my last employer was a null pointer
>> access. That company has an internal coding policy that pointers will
>> ALWAYS be tested for null before being dereferenced.
>
> I would submit that this should be done by hardware, not software (i.e.
> location 0, assuming null is 0) should be fetch-protected from
Typically it is, and an exception will be thrown.
Coding standards to test first typically include the notion that
some reasonable action should be taken in lieu of the fetch.
> everywhere but a few O/S routines. Anything else is a colossal waste of
> computing resources.
Once you are handling exceptions, performance is not very important,
since exceptions are, by definition, not supposed to be the normal
course of events.
next prev parent reply other threads:[~2003-02-20 22:34 UTC|newest]
Thread overview: 135+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <mHZ0a.42983$jM5.108891@newsfeeds.bigpond.com>
[not found] ` <nRg1a.190899$HG.32437469@news4.srv.hcvlny.cv.net>
[not found] ` <3E51908E.9CCA3412@adaworks.com>
[not found] ` <8Gh4a.7455$_c6.743959@newsread2.prod.itd.earthlink.net>
[not found] ` <3E51ABCE.5491B9A2@adaworks.com>
[not found] ` <b2spe6$p23$1@helle.btinternet.com>
[not found] ` <3E5273DE.2050206@cox.net>
[not found] ` <3E531E6F.BDFB2599@adaworks.com>
[not found] ` <3E546C45.4010406@cox.net>
2003-02-20 15:49 ` status of PL/I as a viable language Richard Riehle
2003-02-20 16:26 ` Donald L. Dobbs
2003-02-20 17:15 ` Preben Randhol
2003-02-21 6:24 ` Anders Wirzenius
2003-02-21 18:44 ` John R. Strohm
2003-02-20 17:58 ` Hyman Rosen
2003-02-20 18:44 ` John R. Strohm
2003-02-20 19:09 ` Larry Kilgallen
2003-02-20 19:27 ` John R. Strohm
2003-02-20 19:48 ` Hyman Rosen
2003-02-20 21:12 ` John R. Strohm
2003-02-20 21:39 ` Bobby D. Bryant
2003-02-21 20:36 ` Randy Brukardt
2003-02-21 8:33 ` Jean-Pierre Rosen
2003-02-20 19:34 ` Hyman Rosen
2003-02-20 19:52 ` Vinzent Hoefler
2003-02-20 20:14 ` Hyman Rosen
2003-02-20 21:20 ` Vinzent Hoefler
2003-02-21 8:14 ` Ondřej Tučný
2003-02-21 14:54 ` Hyman Rosen
2003-02-21 15:05 ` Vinzent Hoefler
2003-02-21 15:55 ` Preben Randhol
2003-02-21 16:45 ` Hyman Rosen
2003-02-21 17:40 ` Preben Randhol
2003-02-21 17:44 ` Preben Randhol
2003-02-21 18:10 ` Hyman Rosen
2003-02-21 18:38 ` Preben Randhol
2003-02-21 18:40 ` Preben Randhol
2003-02-21 18:52 ` Hyman Rosen
2003-02-21 19:24 ` Vinzent Hoefler
2003-02-21 19:57 ` Hyman Rosen
2003-02-21 20:37 ` Vinzent Hoefler
2003-02-21 20:55 ` Randy Brukardt
2003-02-21 18:42 ` Vinzent Hoefler
2003-02-21 18:48 ` John R. Strohm
2003-02-21 20:22 ` Richard Riehle
2003-02-21 20:51 ` Randy Brukardt
2003-02-21 21:29 ` Hyman Rosen
2003-02-21 21:44 ` Vinzent Hoefler
2003-02-23 5:05 ` Hyman Rosen
2003-02-24 16:29 ` Vinzent Hoefler
2003-02-22 11:06 ` Preben Randhol
2003-02-23 22:04 ` tmoran
2003-02-24 9:32 ` Preben Randhol
2003-03-02 2:37 ` AG
2003-03-01 13:46 ` Preben Randhol
2003-03-03 0:57 ` AG
2003-03-02 12:40 ` Preben Randhol
2003-03-02 16:52 ` John R. Strohm
2003-03-03 0:19 ` Georg Bauhaus
2003-03-03 3:03 ` John R. Strohm
2003-03-04 12:11 ` Faust
2003-03-04 15:51 ` OT: Crime Frank J. Lhota
2003-03-03 8:01 ` status of PL/I as a viable language Preben Randhol
2003-02-24 20:15 ` Randy Brukardt
2003-02-25 10:00 ` Preben Randhol
2003-02-26 1:10 ` Randy Brukardt
2003-02-26 18:49 ` Stephen Leake
2003-02-27 12:09 ` Preben Randhol
2003-03-01 18:16 ` Richard Riehle
2003-03-02 1:56 ` AG
[not found] ` <iqeli-c2d.ln1@beastie.ix.netcom.com>
2003-02-23 5:13 ` Hyman Rosen
2003-02-28 10:32 ` Lutz Donnerhacke
2003-02-28 18:52 ` Vinzent Hoefler
2003-02-23 19:19 ` Berend de Boer
2003-02-24 6:19 ` Hyman Rosen
2003-02-20 22:10 ` Peter Flass
2003-02-20 22:26 ` Chad R. Meiners
2003-02-21 9:13 ` Dmitry A. Kazakov
2003-02-21 14:56 ` Hyman Rosen
2003-02-21 16:04 ` Preben Randhol
2003-02-21 19:41 ` Mike Silva
2003-02-21 20:41 ` Richard Riehle
2003-02-21 21:46 ` Donald L. Dobbs
2003-02-23 2:23 ` Shmuel (Seymour J.) Metz
2003-02-23 5:02 ` Hyman Rosen
2003-02-23 18:34 ` Donald L. Dobbs
2003-02-24 6:22 ` Hyman Rosen
2003-02-21 19:16 ` John R. Strohm
2003-02-21 19:49 ` Hyman Rosen
2003-02-21 20:32 ` Frank J. Lhota
2003-02-21 20:40 ` John R. Strohm
2003-02-25 10:31 ` Quality (Re: status of PL/I as a viable language) Anders Wirzenius
2003-02-25 13:10 ` Marin David Condic
2003-02-26 6:22 ` Anders Wirzenius
2003-02-26 11:47 ` Larry Kilgallen
2003-02-26 12:40 ` Larry Kilgallen
2003-02-26 13:43 ` Marin David Condic
2003-02-27 7:05 ` Anders Wirzenius
2003-03-01 22:28 ` AG
2003-03-01 12:56 ` Peter Flass
2003-03-01 19:17 ` Frank Clarke
2003-03-01 13:51 ` Anders Wirzenius
2003-03-01 13:54 ` Anders Wirzenius
2003-03-02 18:51 ` AG
2003-03-02 9:55 ` Anders Wirzenius
2003-02-21 20:35 ` status of PL/I as a viable language John R. Strohm
2003-02-21 21:40 ` Hyman Rosen
2003-02-21 22:25 ` John R. Strohm
2003-02-22 10:56 ` Preben Randhol
2003-02-22 19:55 ` Everett M. Greene
2003-02-23 11:15 ` Preben Randhol
2003-02-22 19:55 ` Everett M. Greene
2003-02-22 20:03 ` John R. Strohm
2003-02-22 22:38 ` Larry Kilgallen
2003-02-21 21:44 ` Pointless Harlows
2003-02-22 4:51 ` John W. Kennedy
2003-02-23 0:13 ` James J. Weinkam
2003-02-23 2:28 ` John W. Kennedy
2003-02-22 13:04 ` IEFBR14, was " Peter Flass
2003-02-22 19:08 ` Robert Munck
2003-02-23 9:53 ` Pointless Harlows
2003-02-22 19:31 ` John W. Kennedy
2003-02-23 2:12 ` Shmuel (Seymour J.) Metz
2003-02-20 21:45 ` Larry Kilgallen
2003-02-20 22:06 ` Peter Flass
2003-02-20 23:30 ` John R. Strohm
2003-02-21 13:46 ` Peter Flass
2003-02-21 20:33 ` Shmuel (Seymour J.) Metz
2003-02-21 20:26 ` Shmuel (Seymour J.) Metz
2003-02-20 22:34 ` Larry Kilgallen [this message]
[not found] ` <1lagi-b33.ln1@beastie.ix.netcom.com>
2003-02-21 16:09 ` Preben Randhol
2003-02-21 18:10 ` Larry Kilgallen
2003-02-24 12:00 ` Larry Kilgallen
2003-02-21 20:16 ` Shmuel (Seymour J.) Metz
2003-02-22 12:57 ` Peter Flass
2003-02-23 2:27 ` Shmuel (Seymour J.) Metz
2003-02-21 20:49 ` Donald's F-22 Question Richard Riehle
2003-02-21 22:37 ` Jerry Petrey
2003-02-20 23:00 status of PL/I as a viable language David C. Hoos, Sr.
-- strict thread matches above, loose matches on Subject: below --
2003-02-21 18:17 Lionel.DRAGHI
2003-02-21 18:44 ` Hyman Rosen
2003-02-22 13:26 David C. Hoos, Sr.
2003-02-26 20:55 David C. Hoos
2003-02-27 12:12 ` Preben Randhol
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