From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.bugs Subject: bug#56199: hash table equality predicate [PATCH] Date: Fri, 24 Jun 2022 20:21:45 +0200 Message-ID: <87zgi1ncqu.fsf@gnus.org> References: <8928CA50-5999-47DD-A002-46B7E9005E62@acm.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="32098"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: 56199@debbugs.gnu.org To: Mattias =?UTF-8?Q?Engdeg=C3=A5rd?= Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Jun 24 20:22:13 2022 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1o4nwa-00089h-M7 for geb-bug-gnu-emacs@m.gmane-mx.org; 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Original-Received: from [84.212.220.105] (helo=xo) by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1o4nw9-0003Us-P4; Fri, 24 Jun 2022 20:21:48 +0200 Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwBAMAAAClLOS0AAAABGdBTUEAALGPC/xhBQAAACBj SFJNAAB6JgAAgIQAAPoAAACA6AAAdTAAAOpgAAA6mAAAF3CculE8AAAAIVBMVEUxLCgiHRlhXFdD Pjr19PDEwbuGgnumo53W1M6AfHb///9QeSwYAAAAAWJLR0QKaND0VgAAAAd0SU1FB+YGGBIUCsf9 kboAAAGoSURBVDjLjZO9b9swEMVPUlJ5lB0IWkWLjNVNdm1UY6BQpUZ/yBCyuV2ySi0Fc3Qlu1TG Fh3y5zZLhpAskBvvh3ePdw8EeK0xmMuKPDOaULQwAnu5KdemSd9IPWOGYTe0gHFFkAaCnoeW4Jmn gWZUW5UnNeAjcj/pvUgf9dstxBo0AfhNm8pe78OoOo1v8pdnq+CKItHhtWfPlf0I/S676xpdKQDc B2YFxeUuDlXzwzlvT885blQFXMRs02KuAoDM8vv2mmrXcvLH0V25yPU8KFudyvlB29GZgrv7ZUtt w5f6QDK/cCNVkyLM8zRfUnUTHOIhJyzCGwX8PZDzQKpOfH3bT3iYDlxyShNFwUMSiww3WPNAf+JZ N2o+K69ylrKeRlgUvbL4eTt8Sh7Jdq8cyz0ev/iodRtLmbSw7BLX+9UPxdniefgssjJVHADkfpBb MSxPSn/y06/YE85WawUELJ4fWdC4WuRUJAsW7xwti/AWjtNLZkgpQJVtSg/wbh/L0AAkG0R50PvO PR8600e3GWbsNtHBhAVbykyKJw8+mrwhgf+W8z7wD1jTW5FlsOchAAAAJXRFWHRkYXRlOmNyZWF0 ZQAyMDIyLTA2LTI0VDE4OjIwOjA5KzAwOjAwteW2KAAAACV0RVh0ZGF0ZTptb2RpZnkAMjAyMi0w Ni0yNFQxODoyMDowOSswMDowMMS4DpQAAAAASUVORK5CYII= X-Now-Playing: Rocketnumbernine's _Meyouweyou_: "Black And Blue" In-Reply-To: <8928CA50-5999-47DD-A002-46B7E9005E62@acm.org> ("Mattias =?UTF-8?Q?Engdeg=C3=A5rd?="'s message of "Fri, 24 Jun 2022 19:19:54 +0200") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list 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-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:235213 Archived-At: Mattias Engdeg=C3=A5rd writes: > Even implemented entirely in Lisp it would be an order of magnitude > faster (and actually correct). > > The attached code is not without flaws but provides a rough starting poin= t. > (This is not meant as a strong argument for or against adding it in > the first place.) I can't ever recall wanting to compare two hash tables for equality (like, that's not what you use a hash table for), but since people have apparently been reimplementing this a lot, then I'm for including it. And the implementation looks nice. --=20 (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no