From: Eli Zaretskii <eliz@gnu.org>
To: Drew Adams <drew.adams@oracle.com>
Cc: 12314@debbugs.gnu.org, cyd@gnu.org
Subject: bug#12314: 24.2.50; `add-to-history': use `setq' with `delete'
Date: Sun, 09 Sep 2012 21:20:38 +0300 [thread overview]
Message-ID: <83txv7kqh5.fsf@gnu.org> (raw)
In-Reply-To: <38A3421174894E56BCF8C118983375B0@us.oracle.com>
> From: "Drew Adams" <drew.adams@oracle.com>
> Cc: <12314@debbugs.gnu.org>, <cyd@gnu.org>
> Date: Sun, 9 Sep 2012 10:35:21 -0700
>
> Eli, at the risk of butting in, I respectfully suggest that you might not be
> reading about this topic well enough or perhaps not thinking enough about it.
How is this remark helpful?
> Stefan is making the point that when programmers use `delete' or `delq' or
> `nconc' they often do so to improve the performance of their code. Which is
> true.
This is an entirely different issue. "Destructive modification" does
not imply the optimization you (and evidently Stefan) are alluding to,
at least not universally so, nor a possibility to piggy-back that to
optimize application code. It just means that the original object is
modified (a.k.a. "destroyed") in the process.
next prev parent reply other threads:[~2012-09-09 18:20 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-30 23:08 bug#12314: 24.2.50; `add-to-history': use `setq' with `delete' Drew Adams
2012-09-08 14:32 ` Chong Yidong
2012-09-08 14:43 ` Eli Zaretskii
2012-09-08 14:57 ` Drew Adams
2012-09-08 15:20 ` Eli Zaretskii
2012-09-08 15:48 ` Drew Adams
2012-09-08 16:05 ` Eli Zaretskii
2012-09-08 16:19 ` Andreas Schwab
2012-09-08 16:33 ` Eli Zaretskii
2012-09-08 16:50 ` Lars Ingebrigtsen
2012-09-08 16:54 ` Drew Adams
2012-09-08 17:06 ` Andreas Schwab
2012-09-08 16:35 ` Drew Adams
2012-09-08 16:25 ` Drew Adams
2012-09-08 16:32 ` Eli Zaretskii
2012-09-08 16:42 ` Drew Adams
2012-09-08 21:21 ` Eli Zaretskii
2012-09-08 22:26 ` Drew Adams
2012-09-09 3:00 ` Eli Zaretskii
2012-09-09 6:29 ` Drew Adams
2012-09-09 7:53 ` Chong Yidong
2012-09-09 17:25 ` Eli Zaretskii
2012-09-10 11:54 ` Wolfgang Jenkner
2012-09-08 23:11 ` Stefan Monnier
2012-09-09 2:51 ` Eli Zaretskii
2012-09-09 14:44 ` Stefan Monnier
2012-09-09 17:14 ` Eli Zaretskii
2012-09-09 17:35 ` Drew Adams
2012-09-09 18:20 ` Eli Zaretskii [this message]
2012-09-09 19:46 ` Drew Adams
2012-09-09 21:37 ` Stefan Monnier
2012-09-10 4:37 ` Eli Zaretskii
2012-09-10 12:59 ` Stefan Monnier
2012-09-10 15:01 ` Stefan Monnier
2012-09-10 15:21 ` Drew Adams
2012-09-10 16:24 ` Eli Zaretskii
2012-09-09 8:25 ` Dmitry Gutov
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