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=-6.7 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 F2F4DC433E2 for ; Tue, 8 Sep 2020 10:12:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B1EA12078B for ; Tue, 8 Sep 2020 10:12:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="IHXcs6Et" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728828AbgIHKMI (ORCPT ); Tue, 8 Sep 2020 06:12:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56994 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726801AbgIHKMF (ORCPT ); Tue, 8 Sep 2020 06:12:05 -0400 Received: from mail-wr1-x442.google.com (mail-wr1-x442.google.com [IPv6:2a00:1450:4864:20::442]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6233EC061573 for ; Tue, 8 Sep 2020 03:12:05 -0700 (PDT) Received: by mail-wr1-x442.google.com with SMTP id x14so18429662wrl.12 for ; Tue, 08 Sep 2020 03:12:05 -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=DowWq0ERd+wViKrYfvHTFDioYw1ebVAB4QReRW0rHVs=; b=IHXcs6EtVetdQUxuqWY0iGiKTNghrG7xGt9UumeUSTKyl3zEFs6Kh+2+rd00GqyAIH UmuW86T7TRLUwbwr8TGNhBq5E67Kh+KPsDUBlca9BdlTbqtnPn/sG98SXt45nmrX/Nf3 EkWSlKHqQyuOnDG6fz109iiPf6aELpmDtvzveYDV+jzJ6ImaQucE3jxNXUT4L43mEy1H XNSwBKZjTgBN6yiAzPGMO/vycljIt9NGxRHqqKSdd52s/q+1d09xvFKhORE5xqLseksE 1XF8sf5rREYsZxo4TclGqukCm1xD7uytayd61KY1TSh+wx3C9BmcIdGomj7MOxdsmHQH Kg4A== 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=DowWq0ERd+wViKrYfvHTFDioYw1ebVAB4QReRW0rHVs=; b=l6eSO9Cim5ORaXCikwrjIPOKEQmqjg2CceNJgGqqGAc4hS3xGGRdTRRUWnnG+PFu7o g2XatgupUA8SVzhwjCWil4Z/sElxkRVRpzInNcX/Y/DnKJnn8+66JS9pt4cq/13ls7dI j6jI3HdHm7C5+kHPN2mqBayUvbEa950jb3rPPgjl+k63134mdZk3VCTmvsRisCj0VE+t HLp71ThCyPlOnrkgjzWsqaiTqyZVckDJ6yVH6QoBZdOqDnuJSP1QGJPn/V+ezDF+Eb8s BgqhilDBYb9S3GqvSyNACkF+CiULTHRgtKW4ukqFY/KSUONsl+IMXlz9TtqTFIBseKIO dZPw== X-Gm-Message-State: AOAM532pc3eKXaBtLD1iU6lD0DplbGHua/xECPadgsePuybrP+gOXIf7 SigkwITl63Z5PVKo2CkJ+tKUH/kqpT4= X-Google-Smtp-Source: ABdhPJzOw0gCSvwyeEHM/HKNpVBjdlVzHkl+fEHhY4XDC2qOaYa5diow9hIUvs7GuRSRk6BsLyGXyw== X-Received: by 2002:adf:f0c7:: with SMTP id x7mr25551216wro.315.1599559923697; Tue, 08 Sep 2020 03:12:03 -0700 (PDT) Received: from ?IPv6:2001:a61:3ab0:7001:e081:d401:3da8:e4bc? ([2001:a61:3ab0:7001:e081:d401:3da8:e4bc]) by smtp.gmail.com with ESMTPSA id y2sm28568885wmg.23.2020.09.08.03.12.02 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 08 Sep 2020 03:12:03 -0700 (PDT) Cc: mtk.manpages@gmail.com, linux-man@vger.kernel.org Subject: Re: possible typo in `man 3 getopt` To: michael.saunders@tuta.io References: From: "Michael Kerrisk (man-pages)" Message-ID: Date: Tue, 8 Sep 2020 12:12:02 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-man-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-man@vger.kernel.org Hello Michael, On 9/8/20 12:03 PM, michael.saunders@tuta.io wrote: > Think this is just a one char bug. > > In the first example provided, the if statement checks for `optind >= argc`, > which I believe should be `<` or maybe `<=`. > Thanks for the truly indespensable work. The code looks okay to me. Why do you think it's wrong? Thanks, Michael -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/