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From: "Andreas Röhler" <andreas.roehler@online.de>
To: emacs-devel@gnu.org
Subject: Re: Should undefined behavior be encouraged in Emacs?
Date: Mon, 03 Oct 2011 08:39:01 +0200	[thread overview]
Message-ID: <4E895885.5060201@online.de> (raw)
In-Reply-To: <jwvipo6zsfg.fsf-monnier+emacs@gnu.org>

Am 03.10.2011 05:11, schrieb Stefan Monnier:
>> The argument given for undefined behavior is that it simplifies
>> maintenance of Emacs internals.
>
> I like to keep some corner of the behavior undefined, when I think
> that user code that depends on such details is undesirable (e.g. return
> values of primitives which are only called for side-effects).
>
>
>          Stefan
>
>

Hi,

my bet: undefined behavior sources bugs, makes maintenance difficult.

Design at the user level certainly deserves a separate approach. It's up 
to implement convenient error-handling than rather than undefined behavior.

Cheers,

Andreas



  reply	other threads:[~2011-10-03  6:39 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-10-03  1:39 Should undefined behavior be encouraged in Emacs? Paul Eggert
2011-10-03  3:11 ` Stefan Monnier
2011-10-03  6:39   ` Andreas Röhler [this message]
2011-10-03  7:29     ` Stephen J. Turnbull
2011-10-03  8:58       ` Andreas Röhler
2011-10-06  2:17         ` Stephen J. Turnbull
2011-10-06 17:30           ` Richard Stallman
2011-10-06 19:49             ` Stephen J. Turnbull
2011-10-06 20:08               ` Andreas Röhler
2011-10-06 20:12                 ` Lars Magne Ingebrigtsen
2011-10-06 20:46                   ` Eli Zaretskii
2011-10-07  5:23                   ` Andreas Röhler
2011-10-07  7:44                   ` Stephen J. Turnbull
2011-10-07  7:52                     ` John Wiegley
2011-10-07 17:27                       ` Stephen J. Turnbull
2011-10-07  8:38                   ` Alan Mackenzie
2011-10-07 15:26                   ` Barry Warsaw
2011-10-07 18:06                     ` ken manheimer
2011-10-07 18:21                       ` Barry Warsaw
2011-10-07 18:46                       ` Óscar Fuentes
2011-10-07 19:59                         ` ken manheimer
2011-10-07 18:41                     ` Drew Adams
2011-10-08 13:49                   ` Miles Bader
2011-10-08 14:34                     ` Drew Adams
2011-10-03 13:16       ` Stefan Monnier
2011-10-03  9:20   ` Alan Mackenzie
2011-10-03  9:52     ` Eli Zaretskii
2011-10-03  8:29 ` Andreas Schwab
2011-10-03  9:53   ` Eli Zaretskii
2011-10-03 13:13 ` Richard Stallman
2011-10-03 15:15   ` Dave Abrahams
2011-10-04  1:55     ` Richard Stallman
2011-10-04  2:18       ` Dave Abrahams
2011-10-03 16:14   ` Eli Zaretskii
2011-10-03 16:27     ` Andreas Schwab
2011-10-03 16:41       ` Eli Zaretskii
2011-10-04  1:55     ` Richard Stallman
2011-10-03 20:53   ` Paul Eggert
2011-10-03 14:49 ` Dave Abrahams

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