X-Loop: help-debbugs@HIDDEN Subject: bug#75994: "seq -w" is broken for large enough numbers Resent-From: Alexey Dobriyan <adobriyan@HIDDEN> Original-Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> Resent-CC: bug-coreutils@HIDDEN Resent-Date: Sat, 01 Feb 2025 17:45:01 +0000 Resent-Message-ID: <handler.75994.B.173843188512038 <at> debbugs.gnu.org> Resent-Sender: help-debbugs@HIDDEN X-GNU-PR-Message: report 75994 X-GNU-PR-Package: coreutils X-GNU-PR-Keywords: To: 75994 <at> debbugs.gnu.org X-Debbugs-Original-To: bug-coreutils@HIDDEN Received: via spool by submit <at> debbugs.gnu.org id=B.173843188512038 (code B ref -1); Sat, 01 Feb 2025 17:45:01 +0000 Received: (at submit) by debbugs.gnu.org; 1 Feb 2025 17:44:45 +0000 Received: from localhost ([127.0.0.1]:59879 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1teHXw-000386-Tc for submit <at> debbugs.gnu.org; Sat, 01 Feb 2025 12:44:45 -0500 Received: from lists.gnu.org ([2001:470:142::17]:41888) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <adobriyan@HIDDEN>) id 1teHX4-00036L-TP for submit <at> debbugs.gnu.org; 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Sat, 01 Feb 2025 09:43:39 -0800 (PST) Received: from p183 ([46.53.253.11]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-438e23d42c7sm95799305e9.3.2025.02.01.09.43.38 for <bug-coreutils@HIDDEN> (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 01 Feb 2025 09:43:39 -0800 (PST) Date: Sat, 1 Feb 2025 20:43:37 +0300 From: Alexey Dobriyan <adobriyan@HIDDEN> Message-ID: <e0bf6e6c-aa37-46a3-8602-01b2282dd276@p183> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Received-SPF: pass client-ip=2a00:1450:4864:20::336; envelope-from=adobriyan@HIDDEN; helo=mail-wm1-x336.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: 1.0 (+) X-Mailman-Approved-At: Sat, 01 Feb 2025 12:44:44 -0500 X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -0.0 (/) coreutils 9.3, 9.5 Steps to reproduce: # 21 digits $ seq 111111111111111111111 1 111111111111111111113 111111111111111111111 111111111111111111112 111111111111111111113 $ seq -w 111111111111111111111 1 111111111111111111113 111111111111111111112 # what? 111111111111111111112 111111111111111111112 111111111111111111112
Content-Disposition: inline Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Mailer: MIME-tools 5.505 (Entity 5.505) Content-Type: text/plain; charset=utf-8 X-Loop: help-debbugs@HIDDEN From: help-debbugs@HIDDEN (GNU bug Tracking System) To: Alexey Dobriyan <adobriyan@HIDDEN> Subject: bug#75994: Acknowledgement ("seq -w" is broken for large enough numbers) Message-ID: <handler.75994.B.173843188512038.ack <at> debbugs.gnu.org> References: <e0bf6e6c-aa37-46a3-8602-01b2282dd276@p183> X-Gnu-PR-Message: ack 75994 X-Gnu-PR-Package: coreutils Reply-To: 75994 <at> debbugs.gnu.org Date: Sat, 01 Feb 2025 17:45:02 +0000 Thank you for filing a new bug report with debbugs.gnu.org. This is an automatically generated reply to let you know your message has been received. Your message is being forwarded to the package maintainers and other interested parties for their attention; they will reply in due course. Your message has been sent to the package maintainer(s): bug-coreutils@HIDDEN If you wish to submit further information on this problem, please send it to 75994 <at> debbugs.gnu.org. Please do not send mail to help-debbugs@HIDDEN unless you wish to report a problem with the Bug-tracking system. --=20 75994: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D75994 GNU Bug Tracking System Contact help-debbugs@HIDDEN with problems
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[86.44.211.146]) by smtp.googlemail.com with ESMTPSA id ffacd0b85a97d-38c5c102bccsm7939001f8f.27.2025.02.01.12.01.18 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 01 Feb 2025 12:01:19 -0800 (PST) Message-ID: <1a81e85d-1be0-489e-8ef1-12d2f6126b38@HIDDEN> Date: Sat, 1 Feb 2025 20:01:18 +0000 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Beta References: <e0bf6e6c-aa37-46a3-8602-01b2282dd276@p183> Content-Language: en-US From: =?UTF-8?Q?P=C3=A1draig?= Brady <P@HIDDEN> In-Reply-To: <e0bf6e6c-aa37-46a3-8602-01b2282dd276@p183> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Score: 0.0 (/) X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) On 01/02/2025 17:43, Alexey Dobriyan wrote: > coreutils 9.3, 9.5 > > Steps to reproduce: > > # 21 digits > $ seq 111111111111111111111 1 111111111111111111113 > 111111111111111111111 > 111111111111111111112 > 111111111111111111113 With no -w, seq doesn't use floating point and instead operates on the ASCII values directly. > > $ seq -w 111111111111111111111 1 111111111111111111113 > 111111111111111111112 # what? > 111111111111111111112 > 111111111111111111112 > 111111111111111111112 With -w seq will use long doubles internally, which usually have a 64 bit significand. I.e. once you go above 2^64, you get approximations of integers. Now we could adjust seq to use the "ASCII" increment method in this case by handling leading zeros appropriately. It would be good to know your use case here though, as to know how common this issue might be. cheers, Pádraig
X-Loop: help-debbugs@HIDDEN Subject: bug#75994: "seq -w" is broken for large enough numbers Resent-From: Alexey Dobriyan <adobriyan@HIDDEN> Original-Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> Resent-CC: bug-coreutils@HIDDEN Resent-Date: Sat, 01 Feb 2025 21:23:03 +0000 Resent-Message-ID: <handler.75994.B75994.17384449379568 <at> debbugs.gnu.org> Resent-Sender: help-debbugs@HIDDEN X-GNU-PR-Message: followup 75994 X-GNU-PR-Package: coreutils X-GNU-PR-Keywords: To: =?UTF-8?Q?P=C3=A1draig?= Brady <P@HIDDEN> Cc: 75994 <at> debbugs.gnu.org Received: via spool by 75994-submit <at> debbugs.gnu.org id=B75994.17384449379568 (code B ref 75994); Sat, 01 Feb 2025 21:23:03 +0000 Received: (at 75994) by debbugs.gnu.org; 1 Feb 2025 21:22:17 +0000 Received: from localhost ([127.0.0.1]:60267 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1teKwS-0002UA-Cn for submit <at> debbugs.gnu.org; Sat, 01 Feb 2025 16:22:16 -0500 Received: from mail-wm1-x333.google.com ([2a00:1450:4864:20::333]:52591) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.84_2) (envelope-from <adobriyan@HIDDEN>) id 1teKCO-0005go-Pq for 75994 <at> debbugs.gnu.org; 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Sat, 01 Feb 2025 12:34:34 -0800 (PST) Received: from p183 ([46.53.253.11]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-38c5c122465sm8114862f8f.47.2025.02.01.12.34.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 01 Feb 2025 12:34:33 -0800 (PST) Date: Sat, 1 Feb 2025 23:34:31 +0300 From: Alexey Dobriyan <adobriyan@HIDDEN> Message-ID: <21378d49-0202-4427-9d02-e7eae6be5ecb@p183> References: <e0bf6e6c-aa37-46a3-8602-01b2282dd276@p183> <1a81e85d-1be0-489e-8ef1-12d2f6126b38@HIDDEN> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1a81e85d-1be0-489e-8ef1-12d2f6126b38@HIDDEN> X-Spam-Score: 0.0 (/) X-Mailman-Approved-At: Sat, 01 Feb 2025 16:22:14 -0500 X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) On Sat, Feb 01, 2025 at 08:01:18PM +0000, Pádraig Brady wrote: > With -w seq will use long doubles internally, > which usually have a 64 bit significand. > I.e. once you go above 2^64, you get approximations of integers. > > Now we could adjust seq to use the "ASCII" increment method > in this case by handling leading zeros appropriately. > It would be good to know your use case here though, > as to know how common this issue might be. The usecase is using GNU seq as reference implementation. :^) I'd do decimal fixed point. Given that seq only does addition it won't be that bad.
X-Loop: help-debbugs@HIDDEN Subject: bug#75994: "seq -w" is broken for large enough numbers Resent-From: Paul Eggert <eggert@HIDDEN> Original-Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> Resent-CC: bug-coreutils@HIDDEN Resent-Date: Sun, 02 Feb 2025 07:29:01 +0000 Resent-Message-ID: <handler.75994.B75994.1738481311954 <at> debbugs.gnu.org> Resent-Sender: help-debbugs@HIDDEN X-GNU-PR-Message: followup 75994 X-GNU-PR-Package: coreutils X-GNU-PR-Keywords: To: Alexey Dobriyan <adobriyan@HIDDEN> Cc: =?UTF-8?Q?P=C3=A1draig?= Brady <P@HIDDEN>, 75994 <at> debbugs.gnu.org Received: via spool by 75994-submit <at> debbugs.gnu.org id=B75994.1738481311954 (code B ref 75994); Sun, 02 Feb 2025 07:29:01 +0000 Received: (at 75994) by debbugs.gnu.org; 2 Feb 2025 07:28:31 +0000 Received: from localhost ([127.0.0.1]:32929 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1teUP9-0000FK-GR for submit <at> debbugs.gnu.org; Sun, 02 Feb 2025 02:28:31 -0500 Received: from mail.cs.ucla.edu ([131.179.128.66]:35352) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <eggert@HIDDEN>) id 1teUP7-0000F3-7G for 75994 <at> debbugs.gnu.org; Sun, 02 Feb 2025 02:28:30 -0500 Received: from localhost (localhost [127.0.0.1]) by mail.cs.ucla.edu (Postfix) with ESMTP id D1A9E3C00D403; Sat, 1 Feb 2025 23:28:22 -0800 (PST) Received: from mail.cs.ucla.edu ([127.0.0.1]) by localhost (mail.cs.ucla.edu [127.0.0.1]) (amavis, port 10032) with ESMTP id O2ZVbPqVNx-F; Sat, 1 Feb 2025 23:28:22 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by mail.cs.ucla.edu (Postfix) with ESMTP id 91AD23C00D406; Sat, 1 Feb 2025 23:28:22 -0800 (PST) DKIM-Filter: OpenDKIM Filter v2.10.3 mail.cs.ucla.edu 91AD23C00D406 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cs.ucla.edu; s=9D0B346E-2AEB-11ED-9476-E14B719DCE6C; t=1738481302; bh=UXNqQz8beLBXDbA9oGMi9yMmnIhDlvxSP5w/y+GVrAg=; h=Message-ID:Date:MIME-Version:To:From; b=Kg9WFIZ+LM+oEywZZB9zQWP7P9QyO2WbbwXqYM8dSExBlxOWqxaz2rw7nRgMDZnwK NIEB583yQaZsK5XaiK1MSSSf4BKdSh2WnBk7aqOzo3jvlqfPXUG7XuG0xJheU/FfIc qQ+B3JRrW1ywA/0TEqTcCOC4Xqmm4AghOorFU/yfNWpsK9GzYATIuL45ty6Xnc5DB5 RBs44mxOQvlfoJKW2KEa2EYNv+ALjNklrY6Cmqeuu081ZquqFGeI+3XSTseENr5E2M ca2/nPR7Ex5CvDAgxqbPJXsZ4fhBD4NhLYTej3PAzo5lyw7LY1V9FHfHwUrz0HNCCv +EEqwiBEKC6Gg== X-Virus-Scanned: amavis at mail.cs.ucla.edu Received: from mail.cs.ucla.edu ([127.0.0.1]) by localhost (mail.cs.ucla.edu [127.0.0.1]) (amavis, port 10026) with ESMTP id 44ilaj4mLJyW; Sat, 1 Feb 2025 23:28:22 -0800 (PST) Received: from [192.168.254.12] (unknown [47.154.28.214]) by mail.cs.ucla.edu (Postfix) with ESMTPSA id 75A383C00D403; Sat, 1 Feb 2025 23:28:22 -0800 (PST) Message-ID: <2fa22721-6078-440c-a8ea-fac75bfb6da4@HIDDEN> Date: Sat, 1 Feb 2025 23:28:21 -0800 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird References: <e0bf6e6c-aa37-46a3-8602-01b2282dd276@p183> <1a81e85d-1be0-489e-8ef1-12d2f6126b38@HIDDEN> <21378d49-0202-4427-9d02-e7eae6be5ecb@p183> Content-Language: en-US From: Paul Eggert <eggert@HIDDEN> Organization: UCLA Computer Science Department In-Reply-To: <21378d49-0202-4427-9d02-e7eae6be5ecb@p183> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: 0.0 (/) X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) On 2025-02-01 12:34, Alexey Dobriyan wrote: > I'd do decimal fixed point. Patches along those lines would be welcome, I expect.
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