GNU bug report logs - #28625
[PROPOSED] Speed up (format "%s" STRING) and the like

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Package: emacs;

Reported by: Paul Eggert <eggert <at> cs.ucla.edu>

Date: Wed, 27 Sep 2017 18:53:02 UTC

Severity: normal

Done: Paul Eggert <eggert <at> cs.ucla.edu>

Bug is archived. No further changes may be made.

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Message #8 received at 28625 <at> debbugs.gnu.org (full text, mbox):

From: John Wiegley <jwiegley <at> gmail.com>
To: Paul Eggert <eggert <at> cs.ucla.edu>
Cc: 28625 <at> debbugs.gnu.org
Subject: Re: bug#28625: [PROPOSED] Speed up (format "%s" STRING) and the like
Date: Wed, 27 Sep 2017 13:00:08 -0700

>>>>> "PE" == Paul Eggert <eggert <at> cs.ucla.edu> writes:

PE> Although the Lisp manual said that ‘format’ returns a newly-allocated
PE> string, this was not true for a few cases like (format "%s" ""), and
PE> fixing the documentation to allow reuse of arguments lets us improve
PE> performance in common cases like (format "foo") and (format "%s" "foo").

Is the performance gain worth the change?

-- 
John Wiegley                  GPG fingerprint = 4710 CF98 AF9B 327B B80F
http://newartisans.com                          60E1 46C4 BD1A 7AC1 4BA2
This bug report was last modified 7 years and 283 days ago.

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