From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.1 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C9520C433DF for ; Sun, 18 Oct 2020 05:46:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 80D73208B8 for ; Sun, 18 Oct 2020 05:46:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="fJ1aO0BP" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725306AbgJRFqd (ORCPT ); Sun, 18 Oct 2020 01:46:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49304 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725275AbgJRFqc (ORCPT ); Sun, 18 Oct 2020 01:46:32 -0400 Received: from mail-wm1-x344.google.com (mail-wm1-x344.google.com [IPv6:2a00:1450:4864:20::344]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6B333C061755 for ; Sat, 17 Oct 2020 22:46:32 -0700 (PDT) Received: by mail-wm1-x344.google.com with SMTP id d81so7211145wmc.1 for ; Sat, 17 Oct 2020 22:46:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=cc:subject:to:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=a14FegYy0vmj8rO405PcLHVax1VOaPdSOQgy+w1Jco0=; b=fJ1aO0BPLLt3FlidB+h0QZ5qdooJFXN6VJh2SaCw0x2yMwKoeDAn+NpICY9urUJpWR INSyXX729UFMg+/IboNz9Edn9F6ujV5K7Tko+f+HPIrNAQRkA4aTAav5MAfsjDi6CpH+ UBOU7WoeH8ePdKo+OPms8Ck/D6ifvH7NW9G0xd3b22XkUnTYeh/GCkjAYO4ulu79n5Fy E8a1YpoLRtyQ5uNf7IfE+Ig8LEMbOkofHjl5bq7zz1XSug2sOSamy7ynwnyjOsadgRYZ FZvx3pCPGsXO9qYtxqCzSTOpZx2r+eVh83twTLIoB5kWsYOC94PPAsc+Rko55qopG61U PoJQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:cc:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=a14FegYy0vmj8rO405PcLHVax1VOaPdSOQgy+w1Jco0=; b=RRyJEUgEugP8inEduKTln9Uw0Owe4aUx09exUkL81SVo8qIVe9kNzEiKNLHY+jjNE9 /LsmgmN3W9trCRZsEawVUPtO/+XAifz+aiFbzN7Zvn+2+NxRJpBlb3zGnIPs0HE+hwNU U3Ajdtqy1N9vllGcTNV+0JhknwMwfi8OfUyZW32zhCo1B8bEywNDNxSKQlOG/HqJ5HYv q46b4U3O59HE5Ex+5TF3zSlCW+Yfzy7b3SZ27iyh3hj1bdkx1swOBaZXaR6Lt6xKzFKp oA8mTKCaWIFFpIDVb3gsmTxKFuXh4FYMLEpGUYcYqHLUsK/fMnXQekL3BJsJ8xVaD0on thdw== X-Gm-Message-State: AOAM533RBuBu8QXnHqq/NkeqdPHLHw3sZpyNh68OZkA1iN7ZbmgIExSJ 96PM+84rFLJh1zQiquMtrs8= X-Google-Smtp-Source: ABdhPJx1CGu5Dkgsu2ADJz+az0TGOHMQJVo4xEoFonhNOsr00gaQPut1uX9kMohwyhHMRkunyWE/XA== X-Received: by 2002:a1c:7214:: with SMTP id n20mr11488667wmc.93.1602999990995; Sat, 17 Oct 2020 22:46:30 -0700 (PDT) Received: from [192.168.1.10] (static-176-175-73-29.ftth.abo.bbox.fr. [176.175.73.29]) by smtp.gmail.com with ESMTPSA id r1sm12494441wro.18.2020.10.17.22.46.29 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 17 Oct 2020 22:46:30 -0700 (PDT) Cc: mtk.manpages@gmail.com, linux-man@vger.kernel.org, libc-alpha@sourceware.org Subject: Re: [PATCH 1/3] system_data_types.7: time_t: Add Versions note To: Paul Eggert , Alejandro Colomar References: <20201017213758.9270-1-colomar.6.4.3@gmail.com> <7dc0c08b-ebf8-3d79-75c8-7579f537cd48@cs.ucla.edu> From: "Michael Kerrisk (man-pages)" Message-ID: <78f7baf9-bd40-39d5-bbca-403381ec369a@gmail.com> Date: Sun, 18 Oct 2020 07:46:29 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: <7dc0c08b-ebf8-3d79-75c8-7579f537cd48@cs.ucla.edu> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-man@vger.kernel.org On 10/18/20 3:05 AM, Paul Eggert wrote: > On 10/17/20 2:37 PM, Alejandro Colomar via Libc-alpha wrote: >> since POSIX.1-2008. >> +.PP >> +Prior to POSIX.1-2008, >> +the type was either an integer type or a real-floating type. > > No actual POSIXish implementation ever made it a real-floating type, though, and > that point should be made lest some conscientious programmer worry about a > nonexistent porting issue. Thanks for catching this, Paul! Alex, I suggest either we drop this patch, or you could reword as something like: "In POSIX.1-2001, the type was specified as being either an integer type or a real-floating type. However, existing implementations used an integer type, and POSIX.1-2008 tightened the specification to reflect this." Thanks, Michael -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/