From unknown Sat Aug 16 10:43:14 2025 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Mailer: MIME-tools 5.509 (Entity 5.509) Content-Type: text/plain; charset=utf-8 From: bug#36407 <36407@debbugs.gnu.org> To: bug#36407 <36407@debbugs.gnu.org> Subject: Status: 27.0.50; `plist-get', `equal' etc. and circular "lists" Reply-To: bug#36407 <36407@debbugs.gnu.org> Date: Sat, 16 Aug 2025 17:43:14 +0000 retitle 36407 27.0.50; `plist-get', `equal' etc. and circular "lists" reassign 36407 emacs submitter 36407 Pip Cet severity 36407 minor thanks From debbugs-submit-bounces@debbugs.gnu.org Thu Jun 27 17:44:16 2019 Received: (at submit) by debbugs.gnu.org; 27 Jun 2019 21:44:16 +0000 Received: from localhost ([127.0.0.1]:39943 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hgcBk-0006OL-4u for submit@debbugs.gnu.org; Thu, 27 Jun 2019 17:44:16 -0400 Received: from lists.gnu.org ([209.51.188.17]:57621) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hgcBi-0006OD-2p for submit@debbugs.gnu.org; Thu, 27 Jun 2019 17:44:14 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:34712) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hgcBg-0006J6-0F for bug-gnu-emacs@gnu.org; Thu, 27 Jun 2019 17:44:13 -0400 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=0.8 required=5.0 tests=BAYES_50,FREEMAIL_FROM autolearn=disabled version=3.3.2 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hgcBe-0006q9-Hy for bug-gnu-emacs@gnu.org; Thu, 27 Jun 2019 17:44:11 -0400 Received: from mail-oi1-x230.google.com ([2607:f8b0:4864:20::230]:39163) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1hgcBe-0006on-AP for bug-gnu-emacs@gnu.org; Thu, 27 Jun 2019 17:44:10 -0400 Received: by mail-oi1-x230.google.com with SMTP id m202so2723477oig.6 for ; Thu, 27 Jun 2019 14:44:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=XwArh3QsYXHdW9LkCzYr0/F2L9i4OBEpKdnPMXHdvV4=; b=O2wYuaXx/VSk8VQ+qd28xuxryVB7rHhC6lVKSWpw/myVa8PnAuST5MvqrcZDH66QUC F2g2EUWcqNyR7OK/g8DMttZckg459H6duckwkm7D42gI6kcHpS5vCDkU/dOv5Uuqdd6s NgsNRskysbb7Rubfi1B/3abgtYOpjHInGg0nOycVZF+s61AgwdmAgQcYfP3xBByr9Img 8CE7omUA+gtjrUB+KhKXcp4vSRfK1b7pUUW3su/dKJFfMrtDyuG7Q1x1MwcUGlC3/ymc nQsOQR7/xBn79SKTcA+X0Mae610IFHzfvUriKOqamiaD/X3vipxzGg2EVVn4x3p88s+u 3jwQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=XwArh3QsYXHdW9LkCzYr0/F2L9i4OBEpKdnPMXHdvV4=; b=uUeQsa/mUk291V91FL5wTbsqXYw7R3qYSTDycbs7fd32y16dU6ihTO8bVV2mcyIcjL 4Iz4lQQV7tt4RWSQwcwhG3Kws4dD6RO2WQiYuKa6gU99paZaMI0Xfr6SxvK//NpYBqUK pp6sXK3n8k4eOkHvKO9xO0nvnmamHCcO3M30LA6pC4kgicDH/jz5pJnJhTATYaFim7pm BOUN62x5lVCSAlAUF9li4/y5KP0YXXoqk5xVP3EjayPTXSG9egxYBMPz8zzJdXNy0J5b xeKJfW9lvqMuRSA10/tFe3reCItNabeYQIVfm2vatVjzG/SPb3U8ZwQbfqzI2XH9QwPo 5ZvQ== X-Gm-Message-State: APjAAAXVvTq+6dU/A74ERNrgZR0M/dmMEhdRVT0+KNhE7a2vkekJxDVy /lwUGwkFLz41IFQHpmpZm7JbO3z9FIGf7vLa35qYPlUM7/M= X-Google-Smtp-Source: APXvYqysfT+UGskAjOoaMD9XaUdJ1RXTXftv6Up2aLHLGxh11lwxDRe9AG8Qek5qD8ms4QU8qMXrXNNEk9Xtaalawow= X-Received: by 2002:aca:4790:: with SMTP id u138mr3741362oia.44.1561671848965; Thu, 27 Jun 2019 14:44:08 -0700 (PDT) MIME-Version: 1.0 From: Pip Cet Date: Thu, 27 Jun 2019 21:43:32 +0000 Message-ID: Subject: 27.0.50; `plist-get', `equal' etc. and circular "lists" To: bug-gnu-emacs@gnu.org Content-Type: multipart/mixed; boundary="000000000000d08c9b058c550f4b" X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::230 X-Spam-Score: -1.3 (-) X-Debbugs-Envelope-To: submit X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -2.3 (--) --000000000000d08c9b058c550f4b Content-Type: text/plain; charset="UTF-8" plist-get currently contains this code: FOR_EACH_TAIL_SAFE (tail) { tail = XCDR (tail); if (EQ (tail, li.tortoise)) break; } I don't understand why the last two lines are there. They're unnecessary for proper plists; for circular plists, they result in unintuitive behavior; and they depend on details of the FOR_EACH_TAIL_SAFE implementation. Can someone enlighten me? As a tangential issue, shouldn't `equal' be symmetric? (let* ((l1 '#1=(0 1 2 . #1#)) (l2 '(0 1 2 0 1 2 . #1#))) (equal l2 l1) => t (equal l1 l2) => "List contains a loop" error. 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Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.2 MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="------------142808C30346A01C011A655E" Content-Language: en-US X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 36407 Cc: 36407@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -3.3 (---) This is a multi-part message in MIME format. --------------142808C30346A01C011A655E Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit > I don't understand why the last two lines are there. I thought those lines were needed to avoid an infinite loop in pathological cyclic cases. But on further thought you're right, they aren't needed. I installed that patch; thanks. > shouldn't `equal' be symmetric? Yes, on its domain. But circular lists are outside its domain, and the documentation doesn't promise any particular behavior on them. It's OK if (equal a b) signals an error and (equal b a) does not. It's even OK if (equal a b) signals an error and a later call (equal a b) with exactly the same (unchanged) arguments does not (because the stack happens to have more room the second time). We still have symmetry in the sense that (eq (equal a b) (equal b a)) always either returns t or signals an error; it never returns nil. I installed the attached doc patch to try to make this a bit clearer. --------------142808C30346A01C011A655E Content-Type: text/x-patch; name="0001-Improve-equal-and-array-doc.patch" Content-Disposition: attachment; filename="0001-Improve-equal-and-array-doc.patch" Content-Transfer-Encoding: quoted-printable >From bdbb390ffef9f8b4eab263055723b27edad7b91c Mon Sep 17 00:00:00 2001 From: Paul Eggert Date: Thu, 27 Jun 2019 15:39:04 -0700 Subject: [PATCH] =3D?UTF-8?q?Improve=3D20=3DE2=3D80=3D98equal=3DE2=3D80=3D= 99=3D20and=3D20array?=3D =3D?UTF-8?q?=3D20doc?=3D MIME-Version: 1.0 Content-Type: text/plain; charset=3DUTF-8 Content-Transfer-Encoding: 8bit * doc/lispref/objects.texi (Array Type): Array sizes are nonnegative fixnums, not arbitrary integers. (Equality Predicates): Do not say that =E2=80=98eq=E2=80=99 equals =E2=80= =98=3D=E2=80=99 on bignums. Do not imply that =E2=80=98equal=E2=80=99 must signal an error on circula= r lists. --- doc/lispref/objects.texi | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/doc/lispref/objects.texi b/doc/lispref/objects.texi index 745baacc29..2e8e2ee714 100644 --- a/doc/lispref/objects.texi +++ b/doc/lispref/objects.texi @@ -964,7 +964,8 @@ Array Type =20 A string is an array of characters and a vector is an array of arbitrary objects. A bool-vector can hold only @code{t} or @code{nil}. -These kinds of array may have any length up to the largest integer. +These kinds of array may have any length up to the largest fixnum, +subject to system architecture limits and available memory. Char-tables are sparse arrays indexed by any valid character code; they can hold arbitrary objects. =20 @@ -2085,7 +2086,7 @@ Equality Predicates This function returns @code{t} if @var{object1} and @var{object2} are the same object, and @code{nil} otherwise. =20 -If @var{object1} and @var{object2} are integers with the same value, +If @var{object1} and @var{object2} are fixnums with the same value, they are considered to be the same object (i.e., @code{eq} returns @code{t}). If @var{object1} and @var{object2} are symbols with the same name, they are normally the same object---but see @ref{Creating @@ -2095,7 +2096,7 @@ Equality Predicates are the same object, meaning that a change in the contents of one will be reflected by the same change in the contents of the other. For other types of objects whose contents cannot be changed (e.g., -floats), two arguments with the same contents might or might not be +bignums and floats), two arguments with the same contents might or might= not be the same object, and @code{eq} returns @code{t} or @code{nil} depending on whether the Lisp interpreter created one object or two. =20 @@ -2258,7 +2259,7 @@ Equality Predicates their textual contents are the same. @end defun =20 - The test for equality is implemented recursively; for example, given + For @code{equal}, equality is defined recursively; for example, given two cons cells @var{x} and @var{y}, @code{(equal @var{x} @var{y})} returns @code{t} if and only if both the expressions below return @code{t}: @@ -2268,8 +2269,10 @@ Equality Predicates (equal (cdr @var{x}) (cdr @var{y})) @end example =20 -Because of this recursive method, circular lists may therefore cause -infinite recursion (leading to an error). +Comparing circular lists may therefore cause deep recursion that leads +to an error, and this may result in counterintuitive behavior such as +@code{(equal a b)} returning @code{t} whereas @code{(equal b a)} +signals an error. =20 @defun equal-including-properties object1 object2 This function behaves like @code{equal} in all cases but also requires --=20 2.21.0 --------------142808C30346A01C011A655E-- From debbugs-submit-bounces@debbugs.gnu.org Fri Jun 28 04:05:54 2019 Received: (at 36407-done) by debbugs.gnu.org; 28 Jun 2019 08:05:54 +0000 Received: from localhost ([127.0.0.1]:40323 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hgltJ-0005Zc-Th for submit@debbugs.gnu.org; Fri, 28 Jun 2019 04:05:54 -0400 Received: from mail-ot1-f42.google.com ([209.85.210.42]:46533) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hgltI-0005ZQ-K5 for 36407-done@debbugs.gnu.org; Fri, 28 Jun 2019 04:05:53 -0400 Received: by mail-ot1-f42.google.com with SMTP id z23so5089925ote.13 for <36407-done@debbugs.gnu.org>; Fri, 28 Jun 2019 01:05:52 -0700 (PDT) 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=/nHHWlkG5KaJ/6JvIT7g/jLon3mQO+o53Hlu6jJaNB0=; b=av5/kEMtyuSubGi106srhwQ/pgdWGwy17bo7KVc1cMuVNo/ZwZKAgvUlnvlW4OXMAC fN/J675yMboMIDIEVU2zOhYMdqo8M4mm8k8XRjtDvnUvr8A940eRvLOoWwRKyjmf3y8+ OZ2QXA7dZi5W6j/0I6ct91reCszOl3CWFA6OptNsbLeiQzMSX/vEqD4gFkajThyck43s poQbBMGzPlHQYMtq7hYudx01zrMn+WCpK16EAxu/W/SvuBF85ZmqjJCKEVrV+7ko7SJL u223lMrpF+6qEzPsd+S+h5XeccFxrzwgPo/rysEwcbQi/hej6of23ytxEE1e4QWie/Ha safw== 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=/nHHWlkG5KaJ/6JvIT7g/jLon3mQO+o53Hlu6jJaNB0=; b=Fd7qpAp6AUQi8+ZHvHzqKHwxIdy3lX5M3bdmskn6NXc6ZybHLmfPorfsKShtZrlKpv mIz3XvmBNTzd+KDR8rq+VqbHNKg587LNyY8D/MlC4Gfns9DqsMzmwsgGPJ2sxA5dMVf8 8tvfqbPqvbY++/BQLVdJM4KDg7KoKywZzi0GVEJ01hXjM8iUDQjCAVTMX+pyvOiayRjO Q5fq+xOT0nPhiKJKrv1DseRN6RhwysRt19U0B5jsNMVdkZ24KGVevB7fhAhwAO3S++vb t6qtPeMKO6yecKLdl3eMFvXMRb9HLYRhfwWG4TN0dvOOC9IK9S13M2cldvJAB5Krbr0C YeAA== X-Gm-Message-State: APjAAAWeHl7uJrib9BQjrHCJp6lcXr3rOp9h78CkA4cVYni/yJohzfJg VMpTFdz01rp7pRSEQ22UO59ASBxIQdt9hotwRu0= X-Google-Smtp-Source: APXvYqyLG6me/b5uEIbt3wVY7RuwXnZpQ6DIV6ta17xLoo21bNenQCyw6svKJ7QPl45VHmykmkztx0GwNUvmYKfji+0= X-Received: by 2002:a9d:7352:: with SMTP id l18mr7256862otk.292.1561709146726; Fri, 28 Jun 2019 01:05:46 -0700 (PDT) MIME-Version: 1.0 References: <730806fc-5899-9bd0-81fd-42900406e874@cs.ucla.edu> In-Reply-To: <730806fc-5899-9bd0-81fd-42900406e874@cs.ucla.edu> From: Pip Cet Date: Fri, 28 Jun 2019 08:05:10 +0000 Message-ID: Subject: Re: bug#36407: 27.0.50; `plist-get', `equal' etc. and circular "lists" To: Paul Eggert Content-Type: text/plain; charset="UTF-8" X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 36407-done Cc: 36407-done@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.0 (-) On Thu, Jun 27, 2019 at 10:52 PM Paul Eggert wrote: > aren't needed. I installed that patch; thanks. Thanks! > > shouldn't `equal' be symmetric? > > Yes, on its domain. But circular lists are outside its domain, and the > documentation doesn't promise any particular behavior on them. It's OK > if (equal a b) signals an error and (equal b a) does not. It's even OK > if (equal a b) signals an error and a later call (equal a b) with > exactly the same (unchanged) arguments does not (because the stack > happens to have more room the second time). We still have symmetry in > the sense that (eq (equal a b) (equal b a)) always either returns t or > signals an error; it never returns nil. Thanks for your explanation, that makes perfect sense. I was confused, in part, by the hash table code in internal_equal, which appears to be designed to handle circular structures with some generality. On further thought, maybe that code is written for DAGs which contain diamond-shaped subgraphs. However, those don't appear to be working very well... > I installed the attached doc patch to try to make this a bit clearer. Thanks again! I'm closing this bug. From debbugs-submit-bounces@debbugs.gnu.org Fri Jun 28 22:01:41 2019 Received: (at 36407) by debbugs.gnu.org; 29 Jun 2019 02:01:41 +0000 Received: from localhost ([127.0.0.1]:43214 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hh2gO-0003SC-P9 for submit@debbugs.gnu.org; Fri, 28 Jun 2019 22:01:41 -0400 Received: from eggs.gnu.org ([209.51.188.92]:43540) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hh2gK-0003RG-V5 for 36407@debbugs.gnu.org; Fri, 28 Jun 2019 22:01:37 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:40968) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hh2gD-0006cH-Ie; Fri, 28 Jun 2019 22:01:30 -0400 Received: from rgm by fencepost.gnu.org with local (Exim 4.82) (envelope-from ) id 1hh2gA-0003eL-Rv; Fri, 28 Jun 2019 22:01:26 -0400 From: Glenn Morris To: Paul Eggert Subject: Re: bug#36407: 27.0.50; `plist-get', `equal' etc. and circular "lists" References: <730806fc-5899-9bd0-81fd-42900406e874@cs.ucla.edu> X-Spook: cypherpunk ASO BART Rumsfeld Belknap Methamphetamine X-Ran: xO5jQGAj.S_+CeSB..AcFwO;X\[n'ZT{VOPk+i%8bz[Ew*6Ct/KdXSe]]Iqf{7xqj7qMeS X-Hue: green X-Debbugs-No-Ack: yes X-Attribution: GM Date: Fri, 28 Jun 2019 22:01:26 -0400 In-Reply-To: <730806fc-5899-9bd0-81fd-42900406e874@cs.ucla.edu> (Paul Eggert's message of "Thu, 27 Jun 2019 15:51:37 -0700") Message-ID: User-Agent: Gnus (www.gnus.org), GNU Emacs (www.gnu.org/software/emacs/) MIME-Version: 1.0 Content-Type: text/plain X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 36407 Cc: 36407@debbugs.gnu.org, Pip Cet X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -3.3 (---) This causes the test json-serialize/object to fail. Ref eg https://hydra.nixos.org/build/95582609 From debbugs-submit-bounces@debbugs.gnu.org Sat Jun 29 00:17:09 2019 Received: (at 36407) by debbugs.gnu.org; 29 Jun 2019 04:17:09 +0000 Received: from localhost ([127.0.0.1]:43266 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hh4nU-0006s6-SP for submit@debbugs.gnu.org; Sat, 29 Jun 2019 00:17:09 -0400 Received: from mail-ot1-f52.google.com ([209.85.210.52]:46748) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hh4nS-0006rW-IM for 36407@debbugs.gnu.org; Sat, 29 Jun 2019 00:17:07 -0400 Received: by mail-ot1-f52.google.com with SMTP id z23so8059098ote.13 for <36407@debbugs.gnu.org>; Fri, 28 Jun 2019 21:17:06 -0700 (PDT) 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=C0lkZh/seL3BqJJ/HcEy1+JI9dKhN8QhFnXLDjFT6fo=; b=EjB9HE9KlGGbCEJzle5zSMSePwPVys6g5WceC94ApfgmoukibIKHq50fPawa1gGo/l 5UZ5xxp+rfwtjurP0oWapf7HlxUIYtac9RlTkfmKX8h2DuGhR5o1toyHwZcRaD4guQDn 2oeoaGf572+Ski18Qb/6XNdjGDJ/d64Y4omjyDWMM9G27PuH5hwH7FMyVmozWpreMjwj wVvcVC/dUITG4lVb0zaGdHQnBo4/BmU0qqGOFkJ825W42R4r1RDqYNCcJNJql2gv2ZEI rloURs54zt6iVKID1S2JUz8yxKgYBYQRo+xECVPZM/S6ojomSCheOk7WgR2VTBtyh3pc fYkQ== 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=C0lkZh/seL3BqJJ/HcEy1+JI9dKhN8QhFnXLDjFT6fo=; b=mfzfAxnj6Yk03MdDJ+0P28J2Kphqz7fw4nAtxddQijPPphsmpoNSmkf+RfOpeTwjqt m7wooTxSX7iMnZB1iIlrgz4jNeD2Le6OlIa7yJQgl7UO8Iz217WBllfAPn3ktFoIF65b 8ZHLsiyDa+sH/NBxUV7Xtwt4qlkNIIiKZnpxOuzHaScMMBBG/nq+YpopCskNKaFS3Re5 9tCRN3jTJikDkzd2D0EIoNAP+3EX/p5QVAuNTPOxAwE4r8FKCQ7guK8tHwL2XAM7EJFW 8PbHEuLdzMncQh+lGX+uPQkWkNGQjmfTYr2mF5OEZvcfkuPc9yQWh0JZXCBrciuCE+CS 1aYA== X-Gm-Message-State: APjAAAVfN9n0hLWK9rk2rTn8vjFtvCj7m7XeARTaTc7yi7OUo0o380ey g/fL7EJ8eOQ9tb3puQvns+GRjI4qh93e6eogfVc= X-Google-Smtp-Source: APXvYqwaTVW6uHRj5yEnChSKiu2KPkGJHhZ+o0zl2iSkRdKLf6fZu12lhCoBO78he+ftdZTtk/vG2urG7UL5TPOSUzU= X-Received: by 2002:a9d:744f:: with SMTP id p15mr6487838otk.287.1561781820974; Fri, 28 Jun 2019 21:17:00 -0700 (PDT) MIME-Version: 1.0 References: <730806fc-5899-9bd0-81fd-42900406e874@cs.ucla.edu> In-Reply-To: From: Pip Cet Date: Sat, 29 Jun 2019 04:16:25 +0000 Message-ID: Subject: Re: bug#36407: 27.0.50; `plist-get', `equal' etc. and circular "lists" To: Glenn Morris Content-Type: multipart/mixed; boundary="000000000000a8025a058c6eaac5" X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 36407 Cc: 36407@debbugs.gnu.org, Paul Eggert X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.0 (-) --000000000000a8025a058c6eaac5 Content-Type: text/plain; charset="UTF-8" On Sat, Jun 29, 2019 at 2:01 AM Glenn Morris wrote: > This causes the test json-serialize/object to fail. Ref eg > > https://hydra.nixos.org/build/95582609 So it does. It actually tests an odd-length circular "plist", which fails both before and after the change, but fails with a different error code. Modification to the test attached. --000000000000a8025a058c6eaac5 Content-Type: text/x-patch; charset="US-ASCII"; name="0001-Fix-json-serialize-object-test-failure.patch" Content-Disposition: attachment; filename="0001-Fix-json-serialize-object-test-failure.patch" Content-Transfer-Encoding: base64 Content-ID: X-Attachment-Id: f_jxh0jdfp0 RnJvbSBhMjVhNjQyMDNlMzA1N2IzMWZkMmFmYzQ4YmQ3NjJjYzhhODA3ZDlkIE1vbiBTZXAgMTcg MDA6MDA6MDAgMjAwMQpGcm9tOiBQaXAgQ2V0IDxwaXBjZXRAZ21haWwuY29tPgpEYXRlOiBTYXQs IDI5IEp1biAyMDE5IDA0OjE0OjM1ICswMDAwClN1YmplY3Q6IFtQQVRDSF0gRml4IGpzb24tc2Vy aWFsaXplL29iamVjdCB0ZXN0IGZhaWx1cmUuCgoqIHRlc3Qvc3JjL2pzb24tdGVzdHMuZWwgKGpz b24tc2VyaWFsaXplL29iamVjdCk6IEFjY2VwdCBmYWlsdXJlIHdpdGgKICBkaWZmZXJlbnQgY29k ZS4KLS0tCiB0ZXN0L3NyYy9qc29uLXRlc3RzLmVsIHwgMyArKy0KIDEgZmlsZSBjaGFuZ2VkLCAy IGluc2VydGlvbnMoKyksIDEgZGVsZXRpb24oLSkKCmRpZmYgLS1naXQgYS90ZXN0L3NyYy9qc29u LXRlc3RzLmVsIGIvdGVzdC9zcmMvanNvbi10ZXN0cy5lbAppbmRleCA3ZDgyNGI1Yzk1Li4zODM5 OTFiMDczIDEwMDY0NAotLS0gYS90ZXN0L3NyYy9qc29uLXRlc3RzLmVsCisrKyBiL3Rlc3Qvc3Jj L2pzb24tdGVzdHMuZWwKQEAgLTc2LDcgKzc2LDggQEAganNvbi1zZXJpYWxpemUvb2JqZWN0CiAg IChzaG91bGQgKGVxdWFsIChqc29uLXNlcmlhbGl6ZSAnKGFiYyBbMSAyIHRdIDpkZWYgOm51bGwp KQogICAgICAgICAgICAgICAgICAie1wiYWJjXCI6WzEsMix0cnVlXSxcImRlZlwiOm51bGx9Iikp CiAgIChzaG91bGQtZXJyb3IgKGpzb24tc2VyaWFsaXplICcjMT0oOmEgMSAuICMxIykpIDp0eXBl ICdjaXJjdWxhci1saXN0KQotICAoc2hvdWxkLWVycm9yIChqc29uLXNlcmlhbGl6ZSAnIzE9KDph IDEgOmIgLiAjMSMpKSA6dHlwZSAnY2lyY3VsYXItbGlzdCkKKyAgKHNob3VsZC1lcnJvciAoanNv bi1zZXJpYWxpemUgJyMxPSg6YSAxIDpiIC4gIzEjKSk6dHlwZSAnKGNpcmN1bGFyLWxpc3QKKyAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg IHdyb25nLXR5cGUtYXJndW1lbnQpKQogICAoc2hvdWxkLWVycm9yIChqc29uLXNlcmlhbGl6ZSAn KDpmb28gImJhciIgKHVuZXhwZWN0ZWQtYWxpc3Qta2V5IC4gMSkpKQogICAgICAgICAgICAgICAg IDp0eXBlICd3cm9uZy10eXBlLWFyZ3VtZW50KQogICAoc2hvdWxkLWVycm9yIChqc29uLXNlcmlh bGl6ZSAnKChhYmMgLiAiYWJjIikgOnVuZXhwZWN0ZWQtcGxpc3Qta2V5ICJrZXkiKSkKLS0gCjIu MjAuMQoK --000000000000a8025a058c6eaac5-- From debbugs-submit-bounces@debbugs.gnu.org Sat Jun 29 01:02:54 2019 Received: (at 36407) by debbugs.gnu.org; 29 Jun 2019 05:02:54 +0000 Received: from localhost ([127.0.0.1]:43273 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hh5Vl-0007zY-NU for submit@debbugs.gnu.org; Sat, 29 Jun 2019 01:02:53 -0400 Received: from zimbra.cs.ucla.edu ([131.179.128.68]:58818) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hh5Vj-0007zL-EW for 36407@debbugs.gnu.org; Sat, 29 Jun 2019 01:02:52 -0400 Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id CAB16161D2F; Fri, 28 Jun 2019 22:02:44 -0700 (PDT) Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id VMB2VHhO7JLK; Fri, 28 Jun 2019 22:02:44 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 20760161D50; Fri, 28 Jun 2019 22:02:44 -0700 (PDT) X-Virus-Scanned: amavisd-new at zimbra.cs.ucla.edu Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id x2xFGR4mxtJK; Fri, 28 Jun 2019 22:02:44 -0700 (PDT) Received: from [192.168.1.9] (cpe-23-242-74-103.socal.res.rr.com [23.242.74.103]) by zimbra.cs.ucla.edu (Postfix) with ESMTPSA id E596A161D2F; Fri, 28 Jun 2019 22:02:43 -0700 (PDT) Subject: Re: bug#36407: 27.0.50; `plist-get', `equal' etc. and circular "lists" To: Pip Cet , Glenn Morris References: <730806fc-5899-9bd0-81fd-42900406e874@cs.ucla.edu> From: Paul Eggert Organization: UCLA Computer Science Department Message-ID: <721f4f62-03ee-81b5-cd6c-e9a65ed53c76@cs.ucla.edu> Date: Fri, 28 Jun 2019 22:02:43 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 36407 Cc: 36407@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -3.3 (---) Thanks, I installed that fix to the test case. 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