From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: John Wiegley Newsgroups: gmane.emacs.bugs Subject: bug#28625: [PROPOSED] Speed up (format "%s" STRING) and the like Date: Wed, 27 Sep 2017 13:00:08 -0700 Message-ID: References: <20170927185212.1846-1-eggert@cs.ucla.edu> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Trace: blaine.gmane.org 1506542490 19535 195.159.176.226 (27 Sep 2017 20:01:30 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Wed, 27 Sep 2017 20:01:30 +0000 (UTC) User-Agent: Gnus/5.130016 (Ma Gnus v0.16) Emacs/26.0 (darwin) Cc: 28625@debbugs.gnu.org To: Paul Eggert Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Sep 27 22:01:24 2017 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dxIW8-00043i-8Y for geb-bug-gnu-emacs@m.gmane.org; Wed, 27 Sep 2017 22:01:12 +0200 Original-Received: from localhost ([::1]:56181 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dxIWF-0001Mu-Hm for geb-bug-gnu-emacs@m.gmane.org; Wed, 27 Sep 2017 16:01:19 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:48862) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dxIW2-0001HG-99 for bug-gnu-emacs@gnu.org; Wed, 27 Sep 2017 16:01:11 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dxIVy-0000L9-Cv for bug-gnu-emacs@gnu.org; Wed, 27 Sep 2017 16:01:06 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:54975) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1dxIVy-0000L4-9a for bug-gnu-emacs@gnu.org; Wed, 27 Sep 2017 16:01:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1dxIVx-0000ps-Ps for bug-gnu-emacs@gnu.org; Wed, 27 Sep 2017 16:01:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: John Wiegley Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 27 Sep 2017 20:01:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 28625 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 28625-submit@debbugs.gnu.org id=B28625.15065424213159 (code B ref 28625); Wed, 27 Sep 2017 20:01:01 +0000 Original-Received: (at 28625) by debbugs.gnu.org; 27 Sep 2017 20:00:21 +0000 Original-Received: from localhost ([127.0.0.1]:35423 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dxIVI-0000ot-Ug for submit@debbugs.gnu.org; Wed, 27 Sep 2017 16:00:21 -0400 Original-Received: from mail-pg0-f43.google.com ([74.125.83.43]:47547) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dxIVG-0000of-TG for 28625@debbugs.gnu.org; Wed, 27 Sep 2017 16:00:19 -0400 Original-Received: by mail-pg0-f43.google.com with SMTP id d8so8362146pgt.4 for <28625@debbugs.gnu.org>; Wed, 27 Sep 2017 13:00:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:in-reply-to:date:message-id:references :user-agent:mime-version:content-transfer-encoding; bh=19RSJyXOcKxSZTRpJvfnNbhJ5oeWMjvyUoC+8nxV84M=; b=myFWXOl0DlsDTvJC1/arkGkyoB1KLqZlqWnf0wnDs9L/sAxKvx3oh4RmMlL9uGjI7L GfM3dmfI1laI2z60GMcUlupRYnbxY7KVguzVK3a/4n4Ewh6bp5/BlyEgPRqVplCYEEbL NY1sbAgFYre/zcbsZ+Nh9IqysTBdhVBp1olSvyhryHuT7sy7Ztu0obqHRt7Okl9r4M3e 6ZTfgokOXzwMCt3siycBjeIONJtELHi1k2KbunYnqo7UKckWTsgt/RZx8RHvgtXbSDlf qaMzvCyJnXoBpfas1q284opFWGYlcaH9qPn0ZULsUtPxMNK9zR6y9t0G4ZtuJ+2pgIST XleA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:in-reply-to:date:message-id :references:user-agent:mime-version:content-transfer-encoding; bh=19RSJyXOcKxSZTRpJvfnNbhJ5oeWMjvyUoC+8nxV84M=; b=tq9Z33ApKXTqzOYV9UZrMm6t+nBU3GWEWFTV3Aj494wAJiP8NvN45LOuhuF/swBeuT e/cj9ksrS+BwpoJs4E1BbAy4hF/uuaND8MHvjjVQufZQt2e4zX+KeRYZZ5bYg99uNgyt k418jMlKcoLuLSEQEVxIIlOZwgkj5dDLyBqHdZQ1nvbkoe/g4BfXRpY/APF9UG1ORnfE VxrTQ8NuaPebz40juqyy522n7P9j3iVQKmAZm35zV2FvkLphD3WevQdaEbJt0RWMIXUz 2k8qaW+QJixIiU911z9tM8g7Sq0j4JKYmSpdWaB3O18d8nSYweLe5hKUBvd5tHS2U/tc PHWA== X-Gm-Message-State: AHPjjUgTKL2GdSkP9WYahdgjkO0ynDO36Tqc3aVuL7CACuyv/1ZJsfZX zwnnaKRMQStsdSkbntBgTtI= X-Google-Smtp-Source: AOwi7QDQpyt86Gzxl9s6JLuZ21lUttJrIhD2gGsVx3wh5G0czsCawyEK43/1nqjs/qqnU6UICdtebw== X-Received: by 10.84.129.65 with SMTP id 59mr2086715plb.442.1506542412930; Wed, 27 Sep 2017 13:00:12 -0700 (PDT) Original-Received: from Vulcan.local (76-234-69-149.lightspeed.frokca.sbcglobal.net. [76.234.69.149]) by smtp.gmail.com with ESMTPSA id y1sm5680770pgp.15.2017.09.27.13.00.11 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 27 Sep 2017 13:00:12 -0700 (PDT) X-Google-Original-From: "John Wiegley" Original-Received: by Vulcan.local (Postfix, from userid 501) id 14F089364A54; Wed, 27 Sep 2017 13:00:11 -0700 (PDT) In-Reply-To: <20170927185212.1846-1-eggert@cs.ucla.edu> (Paul Eggert's message of "Wed, 27 Sep 2017 11:52:12 -0700") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:137515 Archived-At: >>>>> "PE" =3D=3D Paul Eggert writes: PE> Although the Lisp manual said that =E2=80=98format=E2=80=99 returns a n= ewly-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? --=20 John Wiegley GPG fingerprint =3D 4710 CF98 AF9B 327B B80F http://newartisans.com 60E1 46C4 BD1A 7AC1 4BA2