From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Philipp Stephani Newsgroups: gmane.emacs.devel Subject: Re: Noob question: why sequences, lists in particular start at index 0 in Elisp? Date: Sun, 8 Nov 2020 16:42:28 +0100 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="14823"; mail-complaints-to="usenet@ciao.gmane.io" Cc: Emacs developers To: Arthur Miller Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sun Nov 08 16:49:28 2020 Return-path: Envelope-to: ged-emacs-devel@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 1kbmwa-0003jA-FO for ged-emacs-devel@m.gmane-mx.org; Sun, 08 Nov 2020 16:49:28 +0100 Original-Received: from localhost ([::1]:35006 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kbmwZ-00059S-I0 for ged-emacs-devel@m.gmane-mx.org; Sun, 08 Nov 2020 10:49:27 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:60886) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kbmq3-0002Bp-7x for emacs-devel@gnu.org; Sun, 08 Nov 2020 10:42:43 -0500 Original-Received: from mail-ot1-x335.google.com ([2607:f8b0:4864:20::335]:41566) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kbmq1-000641-8t for emacs-devel@gnu.org; Sun, 08 Nov 2020 10:42:42 -0500 Original-Received: by mail-ot1-x335.google.com with SMTP id n15so6198898otl.8 for ; Sun, 08 Nov 2020 07:42:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=jzqTuE+vND0kKwTxVeQBbeogPhcyT+YZmbC21hgNamA=; b=WtlUDD9yfU8+CYel9eIast9GPLi4KtQXm0cVQ+tpOe9jtDwEnhlIqqePF5r9BPxBnN RlBzxgM20lHEy90b/AdYC6Xqr43SZ5Nrm8Vmme+lk88WHzgdmjxv59lFsq0KdvF8YkNn J9SM3viDrxVisSx+JgPpzqME7VDNwTXx4XRYPAnixw06jPUjxZoZHeIGZ/XNzZ0ajnuv Q4RbfaaciIJwn67Sn3yUTib+5jOOJbw00dVMGbddN6H1lnkE0Th19sz96F/pFaxlRHik nipFGsExFlIJtjgMcRLiKNZNtFCoG0urJl4O9nEzua77InE8HpGyRIJ2j0vbZ4fTrlki F+FQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=jzqTuE+vND0kKwTxVeQBbeogPhcyT+YZmbC21hgNamA=; b=oGi2s6lIUYBCxIEjaBnFGoxfrpRb7RkB+IEl4qOimX1LgxDY+aUDpINJXSfThOI/Ma geGI8MBHSnFdxBMnE6o0xVdBcBHJN8DWNTQbU3g4u+80A5RWTm9bbGw0Zms8Y/eshJbt SAJEEI/bbucOjkMWz4jzEhsljGEFFPfFenz3X0JLiUJB71UYmtM5aY83Rh55blzLKj7O uDSr7NkDbM8Vq+z93XVEnRnzGk/LtAjsnyt0VjUp5VCnerJaLa088LExQ2C8Pd6t7+DR phlSk6xY55bU8WoS/UICejJkpzCgzT5bZ4KVT3UcbC46JiKrFIE5SnMCF545u6QRjn2X 5URg== X-Gm-Message-State: AOAM532W4JwyTmnVtJ0xKqoRj4ZDScwEShKg1pO0bdFzhSQQCHmzBohg TsHlVvr6FuXhgD2admq2vqzel52LLrZgIdPaUq/u2k8V0/g= X-Google-Smtp-Source: ABdhPJzgoOLqd5WwaNA3ki8+/ybhKAsK9+nJKXw5dl4xKilhhdqQWeTDIKQh/TGrgcnkTSJCiKoo9viRazN3t8GUiMc= X-Received: by 2002:a9d:12ac:: with SMTP id g41mr6924061otg.149.1604850159699; Sun, 08 Nov 2020 07:42:39 -0800 (PST) In-Reply-To: Received-SPF: pass client-ip=2607:f8b0:4864:20::335; envelope-from=p.stephani2@gmail.com; helo=mail-ot1-x335.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -9 X-Spam_score: -1.0 X-Spam_bar: - X-Spam_report: (-1.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URI_DOTEDU=0.888 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 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-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:258907 Archived-At: Am So., 8. Nov. 2020 um 14:33 Uhr schrieb Arthur Miller : > > I understand why they do so in C; but why in Elisp? > > Just a curious question. > See https://www.cs.utexas.edu/users/EWD/transcriptions/EWD08xx/EWD831.html for a classic language-independent argument.