From sonny@fastmail.net Sun Jul 5 10:45:17 2015 Return-Path: X-Original-To: json@ietfa.amsl.com Delivered-To: json@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 028811A8957 for ; Sun, 5 Jul 2015 10:45:17 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 0.001 X-Spam-Level: X-Spam-Status: No, score=0.001 tagged_above=-999 required=5 tests=[BAYES_50=0.8, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id c0CiKp0Ri4Bl for ; Sun, 5 Jul 2015 10:45:15 -0700 (PDT) Received: from out5-smtp.messagingengine.com (out5-smtp.messagingengine.com [66.111.4.29]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 766231A8900 for ; Sun, 5 Jul 2015 10:45:15 -0700 (PDT) Received: from compute5.internal (compute5.nyi.internal [10.202.2.45]) by mailout.nyi.internal (Postfix) with ESMTP id AD29F2060B for ; Sun, 5 Jul 2015 13:45:14 -0400 (EDT) Received: from frontend1 ([10.202.2.160]) by compute5.internal (MEProxy); Sun, 05 Jul 2015 13:45:14 -0400 DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=fastmail.net; h= content-type:date:from:message-id:mime-version:subject:to :x-sasl-enc:x-sasl-enc; s=mesmtp; bh=QdIaz47VEd0fvhm67E+2Nih7ccg =; b=GsyN4kUC7I3yFpSBqLhcMABv6azJ/ucOXupnPcQe/DS2DhTR+XDhOvA7UCW yK6WDxFr0eCpQox5QXLtLtnn9yEUJEO2XnQGlM+FPKdPaN/S27sHCT0WxGes/4oJ Zp1TrDUNQ47sdhE3XvwpfQmkbcNCQBLak45hbeg5ZJb5vJXg= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d= messagingengine.com; h=content-type:date:from:message-id :mime-version:subject:to:x-sasl-enc:x-sasl-enc; s=smtpout; bh=Qd Iaz47VEd0fvhm67E+2Nih7ccg=; b=g2XWUFSO2RBYTpPSB544orHzJyMkz5iyBw PTxuLp8yC+3wGZ1dzVgIv/8tWqvD2KHsdfIAhCr2cVkNGXWz7DPWM5JtdkJwm0eV nczw31kyXVLKj0YoLjkF+Z3x+pl6bGjghXDP0hvSMOfxUTm+OJ5tMtY1I26dwVQl /VRCjsHxw= X-Sasl-enc: bVwDGdO/eaplNCt4lQtZk8Wq0M/BS6+VWlB+4scT0WYg 1436118314 Received: from sonny-laptop.local (teleyecla-101-230-100-176.cpes.teleyecla.net [176.100.230.101]) by mail.messagingengine.com (Postfix) with ESMTPA id 38BD4C0028C for ; Sun, 5 Jul 2015 13:45:14 -0400 (EDT) Message-ID: <55996D2C.8050907@fastmail.net> Date: Sun, 05 Jul 2015 19:45:16 +0200 From: Sonny Piers User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 MIME-Version: 1.0 To: json@ietf.org Content-Type: multipart/alternative; boundary="------------080903020409090403000102" Archived-At: Subject: [Json] on serialization of signed zero X-BeenThere: json@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "JavaScript Object Notation \(JSON\) WG mailing list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 05 Jul 2015 17:52:21 -0000 This is a multi-part message in MIME format. --------------080903020409090403000102 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Hello, Signed zeros are included in the IEEE floating point standard. From my understanding RFC 7159 doesn't forbid them. But both python and ECMAScript serialize signed zeros (-0) into "0". I wonder what would be the correct way of serializing them. Thanks. --------------080903020409090403000102 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 7bit Hello,

Signed zeros are included in the IEEE floating point standard.
From my understanding RFC 7159 doesn't forbid them.
But both python and ECMAScript serialize signed zeros (-0) into "0".

I wonder what would be the correct way of serializing them.

Thanks.
--------------080903020409090403000102-- From nobody Sun Jul 5 11:54:10 2015 Return-Path: X-Original-To: json@ietfa.amsl.com Delivered-To: json@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id BFFAF1A009F for ; Sun, 5 Jul 2015 11:54:08 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.277 X-Spam-Level: X-Spam-Status: No, score=-1.277 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, FM_FORGED_GMAIL=0.622, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, SPF_PASS=-0.001] autolearn=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id BRMLA4B8IWoL for ; Sun, 5 Jul 2015 11:54:07 -0700 (PDT) Received: from mail-la0-x229.google.com (mail-la0-x229.google.com [IPv6:2a00:1450:4010:c03::229]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 67ADD1A004B for ; Sun, 5 Jul 2015 11:54:07 -0700 (PDT) Received: by lagx9 with SMTP id x9so131543686lag.1 for ; Sun, 05 Jul 2015 11:54:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=N3VKJEkQFjY5ay887/aNs+WwJvv6G1tZdkLYASiAKQI=; b=aBJU3pXwnL4UI9OPI4cRFmh/JtW3gda12zD7CHU0bzoUOcQmv1lcboMfIwF23RbJwQ oqfKjF7eVLkX6/CTBjYIxX3s2R6+AZfq6PPeqjDTtQfbdmj7Sn0wvUhbVX2CM0M5L7Gh CmFio+bDzfuS1pzEltutiNYAYjvCbqaw8jV8G9TKj+j68CIa/5fyj1cgiStdhDY3kgnv trhJougxdJOsVdt6eot+AXB/gC2GsDkd7odZlFh/VE6KYL4HcqX3QKMa9dJEvwbCMKSx dppfVftbbKIFyfdls7xvV8dUgzPA0YjWhqqfvAEu2ARZvQmDmn2/qB8xEeSjfr9Nward WiKg== MIME-Version: 1.0 X-Received: by 10.112.172.4 with SMTP id ay4mr6102494lbc.124.1436122445738; Sun, 05 Jul 2015 11:54:05 -0700 (PDT) Sender: hallam@gmail.com Received: by 10.112.203.163 with HTTP; Sun, 5 Jul 2015 11:54:05 -0700 (PDT) In-Reply-To: <55996D2C.8050907@fastmail.net> References: <55996D2C.8050907@fastmail.net> Date: Sun, 5 Jul 2015 14:54:05 -0400 X-Google-Sender-Auth: WLwNHxp5oejFtB6DuRF9zmlLocg Message-ID: From: Phillip Hallam-Baker To: Sonny Piers Content-Type: multipart/alternative; boundary=001a11c345a83b7ac8051a255009 Archived-At: Cc: JSON WG Subject: Re: [Json] on serialization of signed zero X-BeenThere: json@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "JavaScript Object Notation \(JSON\) WG mailing list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 05 Jul 2015 18:54:08 -0000 --001a11c345a83b7ac8051a255009 Content-Type: text/plain; charset=UTF-8 Same as NaN, you can't. I propose extending JSON with a binary encoding for that exact reason and to allow the precision of binary numbers to be preserved. But this could also be done using Hex. On Sun, Jul 5, 2015 at 1:45 PM, Sonny Piers wrote: > Hello, > > Signed zeros are included in the IEEE floating point standard. > From my understanding RFC 7159 doesn't forbid them. > But both python and ECMAScript serialize signed zeros (-0) into "0". > > I wonder what would be the correct way of serializing them. > > Thanks. > > _______________________________________________ > json mailing list > json@ietf.org > https://www.ietf.org/mailman/listinfo/json > > --001a11c345a83b7ac8051a255009 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Same as NaN, you can't.

I propose e= xtending JSON with a binary encoding for that exact reason and to allow the= precision of binary numbers to be preserved. But this could also be done u= sing Hex.

On Sun, Jul 5, 2015 at 1:45 PM, Sonny Piers <sonny@fastmail.net&g= t; wrote:
=20 =20 =20
Hello,

Signed zeros are included in the =20 IEEE floating point standard.
From my understanding RFC 7159 doesn't forbid them.
But both python and ECMAScript serialize signed zeros (-0) into "0= ".

I wonder what would be the correct way of serializing them.

Thanks.

_______________________________________________
json mailing list
json@ietf.org
https://www.ietf.org/mailman/listinfo/json


--001a11c345a83b7ac8051a255009-- From nobody Sun Jul 5 11:57:13 2015 Return-Path: X-Original-To: json@ietfa.amsl.com Delivered-To: json@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 93CEB1A03A3 for ; Sun, 5 Jul 2015 11:57:12 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.549 X-Spam-Level: X-Spam-Status: No, score=-1.549 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HELO_EQ_DE=0.35, HTML_MESSAGE=0.001] autolearn=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id MRIzELCbreM5 for ; Sun, 5 Jul 2015 11:57:11 -0700 (PDT) Received: from mailhost.informatik.uni-bremen.de (mailhost.informatik.uni-bremen.de [IPv6:2001:638:708:30c9::12]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 967FE1A8851 for ; Sun, 5 Jul 2015 11:57:09 -0700 (PDT) X-Virus-Scanned: amavisd-new at informatik.uni-bremen.de Received: from submithost.informatik.uni-bremen.de (submithost.informatik.uni-bremen.de [IPv6:2001:638:708:30c9::b]) by mailhost.informatik.uni-bremen.de (8.14.5/8.14.5) with ESMTP id t65Iv3KD022338; Sun, 5 Jul 2015 20:57:03 +0200 (CEST) Received: from alma.local (p5DC7EA60.dip0.t-ipconnect.de [93.199.234.96]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by submithost.informatik.uni-bremen.de (Postfix) with ESMTPSA id 3mPfQl0Y02z3GFt; Sun, 5 Jul 2015 20:57:02 +0200 (CEST) Date: Sun, 5 Jul 2015 20:57:01 +0200 From: Carsten Bormann To: Sonny Piers , json@ietf.org Message-ID: In-Reply-To: <55996D2C.8050907@fastmail.net> References: <55996D2C.8050907@fastmail.net> X-Mailer: Airmail (303) MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="55997dfd_7e82f69f_109d5" Archived-At: Subject: Re: [Json] on serialization of signed zero X-BeenThere: json@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "JavaScript Object Notation \(JSON\) WG mailing list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 05 Jul 2015 18:57:12 -0000 --55997dfd_7e82f69f_109d5 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline http://www.ietf.org/mail-archive/web/json/current/msg01661.html (And the whole thread around that.) Gr=C3=BC=C3=9Fe, Carsten On 5 Jul 2015 at 19:52:31, Sonny Piers (sonny=40fastmail.net) wrote: Hello, Signed zeros are included in the IEEE floating point standard. =46rom my understanding R=46C 7159 doesn't forbid them. But both python and ECMAScript serialize signed zeros (-0) into =220=22. I wonder what would be the correct way of serializing them. Thanks. =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F =20 json mailing list =20 json=40ietf.org =20 https://www.ietf.org/mailman/listinfo/json =20 --55997dfd_7e82f69f_109d5 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline