From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: What's the specification for sxhash? Date: Thu, 06 Jun 2019 08:52:47 -0400 Message-ID: References: <20b88c13-e045-5079-f1de-8f16eaf80d30@gmail.com> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="90457"; mail-complaints-to="usenet@blaine.gmane.org" 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 Thu Jun 06 14:53:04 2019 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1hYrtA-000NQ7-8y for ged-emacs-devel@m.gmane.org; Thu, 06 Jun 2019 14:53:04 +0200 Original-Received: from localhost ([127.0.0.1]:60083 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hYrt9-0005P7-0N for ged-emacs-devel@m.gmane.org; Thu, 06 Jun 2019 08:53:03 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:59419) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hYrt3-0005P1-E1 for emacs-devel@gnu.org; Thu, 06 Jun 2019 08:52:58 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hYrt2-00034w-KK for emacs-devel@gnu.org; Thu, 06 Jun 2019 08:52:57 -0400 Original-Received: from [195.159.176.226] (port=53346 helo=blaine.gmane.org) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hYrt1-0002mI-Cl for emacs-devel@gnu.org; Thu, 06 Jun 2019 08:52:55 -0400 Original-Received: from list by blaine.gmane.org with local (Exim 4.89) (envelope-from ) id 1hYrsy-000NDY-As for emacs-devel@gnu.org; Thu, 06 Jun 2019 14:52:52 +0200 X-Injected-Via-Gmane: http://gmane.org/ Cancel-Lock: sha1:+beukSh3Me4bIDPwKoL9Bm9m4BQ= 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:237272 Archived-At: > Probably the doc string should be more explicit about what is/is not > guaranteed. Is consistency only guaranteed inside the current running > emacs thread/process? Yes, they're only guaranteed to work within a particular Emacs session. In practice they're fairly stable across sessions, but they depend for example on the size of fixnums, so they're different in a 32bit build of Emacs and a 64bit build of Emacs. And we don't guarantee that they don't change from one version to another. Stefan