From: Dr Adrian Wrigley <amtw@linuxchip.demon.co.uk>
Subject: Re: Have you ever had a bug caused by...
Date: Sat, 20 Oct 2001 19:07:09 GMT
Date: 2001-10-20T19:07:09+00:00 [thread overview]
Message-ID: <3BD1CA15.6492D999@linuxchip.demon.co.uk> (raw)
In-Reply-To: 27085883.0110191714.784d3d25@posting.google.com
Mike Silva wrote:
> Have you ever had a bug caused by accessing off the end of an array?
>...
> Have you ever had a bug caused by a variable getting set to a value
> outside its designed range?
These are occasionally the *cause* of a bug. But more often they
are the *effect* of a bug. (Maybe it's just semantics, but I
think of some items on the list as the result of bugs, not the cause)
In C, execution problems can arise due to a bug, and things collapse
much later, leading to much confusion and wasted time.
In Ada, execution usually fails much earlier because of range checking,
leading the programmer to focus on the relevant part of the code.
This proximity of cause and effect is a big help debugging Ada.
--
Dr Adrian Wrigley
next prev parent reply other threads:[~2001-10-20 19:07 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-20 1:14 Have you ever had a bug caused by Mike Silva
2001-10-20 1:44 ` Larry Kilgallen
2001-10-20 2:12 ` James Rogers
2001-10-20 9:15 ` Robert*
2001-10-20 11:20 ` Bertrand Augereau
2001-10-20 11:30 ` Matthew Woodcraft
2001-10-20 12:39 ` Robert*
2001-10-20 13:09 ` Bertrand Augereau
2001-10-20 21:21 ` Robert Dewar
2001-10-22 15:58 ` Ted Dennison
2001-10-20 19:07 ` Dr Adrian Wrigley [this message]
2001-10-21 1:09 ` Mike Silva
2001-10-21 12:05 ` Larry Kilgallen
2001-10-22 14:48 ` Marin David Condic
2001-10-22 17:03 ` Martin Dowie
2001-10-22 17:22 ` Marin David Condic
2001-10-23 6:13 ` Mike Silva
2001-10-22 21:49 ` David Bolen
2001-10-22 22:14 ` Marin David Condic
2001-10-23 0:52 ` Robert*
2001-10-23 13:30 ` Marin David Condic
2001-10-25 9:45 ` John English
2001-10-25 15:23 ` Marin David Condic
2001-10-25 18:17 ` Ted Dennison
2001-10-25 15:36 ` Ted Dennison
2001-10-25 16:09 ` Simon Wright
2001-10-25 2:16 ` David Bolen
2001-10-23 6:26 ` Mike Silva
2001-10-23 9:40 ` mike
2001-10-23 10:09 ` Preben Randhol
2001-10-23 13:48 ` Marin David Condic
2001-10-23 15:45 ` Ted Dennison
2001-10-23 17:08 ` Marin David Condic
2001-12-04 11:09 ` Harri J Haataja
2001-10-24 12:44 ` Marc A. Criley
2001-10-24 18:55 ` Jeffrey Carter
2001-10-24 19:34 ` Marin David Condic
2001-10-26 4:18 ` (Off topic:) Quality Anders Wirzenius
2001-10-25 9:36 ` Have you ever had a bug caused by John English
2001-10-25 15:41 ` Wes Groleau
2001-10-25 17:57 ` Have you ever had a bug OOPS Wes Groleau
2001-11-13 2:07 ` David Thompson
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