From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: hash-consing bignums and eq==eql Date: Sat, 08 Sep 2018 23:09:54 -0400 Message-ID: References: <20180821204437.16880.99611@vcs0.savannah.gnu.org> <20180821204439.62390209A6@vcs0.savannah.gnu.org> <53d0c06e-2383-955a-0a17-650fd842b483@cornell.edu> <075ee700-d431-9434-c9d9-a7b3ae3f17fa@cs.ucla.edu> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1536463273 32252 195.159.176.226 (9 Sep 2018 03:21:13 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sun, 9 Sep 2018 03:21:13 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sun Sep 09 05:21:09 2018 Return-path: Envelope-to: ged-emacs-devel@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 1fyqHc-0008JG-P8 for ged-emacs-devel@m.gmane.org; Sun, 09 Sep 2018 05:21:08 +0200 Original-Received: from localhost ([::1]:45921 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fyqJj-00045s-8u for ged-emacs-devel@m.gmane.org; Sat, 08 Sep 2018 23:23:19 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:57650) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fyqJ3-0003pU-QP for emacs-devel@gnu.org; Sat, 08 Sep 2018 23:22:40 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fyq6s-0002jJ-7q for emacs-devel@gnu.org; Sat, 08 Sep 2018 23:10:05 -0400 Original-Received: from [195.159.176.226] (port=58969 helo=blaine.gmane.org) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1fyq6s-0002ik-0M for emacs-devel@gnu.org; Sat, 08 Sep 2018 23:10:02 -0400 Original-Received: from list by blaine.gmane.org with local (Exim 4.84_2) (envelope-from ) id 1fyq4j-00042W-EF for emacs-devel@gnu.org; Sun, 09 Sep 2018 05:07:49 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 19 Original-X-Complaints-To: usenet@blaine.gmane.org Cancel-Lock: sha1:xzLiiYtZfGMSeu9pTiOlWa2BLWM= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 195.159.176.226 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:229535 Archived-At: > Common Lisp and Scheme both have this distinction, and they seem to be doing > OK. Don't forget that Common Lisp and Scheme have a very different user-base and goals. These are languages whose target users are real programmers, and where its considered normal to let a program core-dump if the programmer has given incorrect compiler hints in the form of type annotations. Most users of Elisp on the other hand would not describe themselves as programmers. > In this particular tradeoff between performance and nicer behavior, most > Lisp users seem to prefer performance. If they prefer performance, they won't be coding in Elisp, I'm afraid. Stefan