220 29235 <3454801.ONyH2fmSmH@tjmaciei-mobl1> article Path: news.gmane.org!.POSTED!not-for-mail From: Thiago Macieira Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Re: [RFC] #pragma once... yes, really... (concrete proposal) Date: Sat, 29 Oct 2016 09:12:53 -0700 Lines: 23 Approved: news@gmane.org Message-ID: <3454801.ONyH2fmSmH@tjmaciei-mobl1> References: <58122C8D.9060205@gmail.com> <5813ADD2.5070609@gmail.com> <20161028210832.GA5300@noemi> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Trace: blaine.gmane.org 1477757588 5171 195.159.176.226 (29 Oct 2016 16:13:08 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sat, 29 Oct 2016 16:13:08 +0000 (UTC) User-Agent: KMail/5.3.2 (Linux/4.8.3-1-default; KDE/5.26.0; x86_64; ; ) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCB4TK757YBRBCEV2PAAKGQEUEOZ2MQ@isocpp.org Sat Oct 29 18:13:04 2016 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-wm0-f70.google.com ([74.125.82.70]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1c0WFa-0008AT-Ap for gclcip-std-proposals@m.gmane.org; Sat, 29 Oct 2016 18:12:54 +0200 Original-Received: by mail-wm0-f70.google.com with SMTP id 68sf18990919wmz.5 for ; Sat, 29 Oct 2016 09:12:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=isocpp-org.20150623.gappssmtp.com; s=20150623; h=from:to:subject:date:message-id:user-agent:in-reply-to:references :mime-version:x-original-sender:x-original-authentication-results :reply-to:precedence:mailing-list:list-id:x-spam-checked-in-group :list-post:list-help:list-archive:list-subscribe:list-unsubscribe; bh=YEjHZwFwuwifrOa+YsQ68EudSPIIZF3V5tbk+XBGg3Y=; b=raSFw9CJXfsW8BjccjHDWtBTKtuxKL8CINRH1heVwxVeIukyx0nkJwYLfFZ73gwxhX Dhm8N/hu4ajsr6XTwUzE9WLzPXMOC6/mBfP3RnjO+bYPilAQphThfm6ve2hz49r4Z4hk E0MLo5ytZKfnp8xxOKbagFqOdRc46cldRl8cOnbLRKj6jf7hivw2qRWDwP644pRh9AM3 7tbkA3T115qhJq1xedrSmOFYV0D1O2Eyy7rdjNY560jz3DWWDEZhtaqmcO3bhH48ut8Q CeNS1rzwFsJyGNWZ5qov/t4Gp2NyavH1wt51nNVScQoDFpVWRk6IqjmJFwFyTZNTXCJd ZR/g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:subject:date:message-id:user-agent :in-reply-to:references:mime-version:x-original-sender :x-original-authentication-results:reply-to:precedence:mailing-list :list-id:x-spam-checked-in-group:list-post:list-help:list-archive :list-subscribe:list-unsubscribe; bh=YEjHZwFwuwifrOa+YsQ68EudSPIIZF3V5tbk+XBGg3Y=; b=YlfvJOFylIncPMYNMf7y+UhXbDU90grocdJ1Gyae/org8L8OS8oM+GNrClFzFwGyNO Pi92b41+xV7nLIZd7AQc3FZSeN1qn+zmiSJ+4bumEFs/23KvzC7Nf4spIfJ6oc3zLdBZ 5p+34+o8uSIx7gLWpsLG0YMmljhPs879anwVTS6VbqHAIrHYfnA0RZjZsXlez0wEt76O ze/T5s1vXxJj5tZxpE+aXDE6VTemNFXye48Q4+N3+DEYwLN4HaRdhXqF+KRFnx4Yr5yF PSQxA054IGzKvMRO07GyuojCmkUEhePyEGKf5ntrHNwBf7bMjzYkSkVykwh3G7PZg/AX 5pPQ== X-Gm-Message-State: ABUngve9djEA5EtAOIzRDZJoGP0dE6V++Fnm2klbbVL8XZ5XOFKNi6EuLXoZmj+CETr8oQ== X-Received: by 10.28.25.132 with SMTP id 126mr281744wmz.20.1477757577045; Sat, 29 Oct 2016 09:12:57 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.28.38.6 with SMTP id m6ls885269wmm.3.canary-gmail; Sat, 29 Oct 2016 09:12:55 -0700 (PDT) X-Received: by 10.28.113.18 with SMTP id m18mr3371148wmc.101.1477757575843; Sat, 29 Oct 2016 09:12:55 -0700 (PDT) Original-Received: from gondolin.macieira.info (gondolin.macieira.info. [2a01:4f8:d13:f81:21c:14ff:fe01:12a3]) by mx.google.com with ESMTP id r132si13313334wme.125.2016.10.29.09.12.55 for ; Sat, 29 Oct 2016 09:12:55 -0700 (PDT) Received-SPF: pass (google.com: domain of thiago@macieira.org designates 2a01:4f8:d13:f81:21c:14ff:fe01:12a3 as permitted sender) client-ip=2a01:4f8:d13:f81:21c:14ff:fe01:12a3; Original-Received: from tjmaciei-mobl1.localnet (unknown [IPv6:2601:1c0:4501:5f9f:f4c1:eb56:9248:8f39]) by gondolin.macieira.info (Postfix) with ESMTPSA id 48F2411AAF7 for ; Sat, 29 Oct 2016 09:12:55 -0700 (PDT) In-Reply-To: <20161028210832.GA5300@noemi> X-Original-Sender: thiago@macieira.org X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of thiago@macieira.org designates 2a01:4f8:d13:f81:21c:14ff:fe01:12a3 as permitted sender) smtp.mailfrom=thiago@macieira.org Precedence: list Mailing-list: list std-proposals@isocpp.org; contact std-proposals+owners@isocpp.org List-ID: X-Google-Group-Id: 399137483710 List-Post: , List-Help: , List-Archive: List-Subscribe: , List-Unsubscribe: , Xref: news.gmane.org gmane.comp.lang.c++.isocpp.proposals:29235 Archived-At: On sexta-feira, 28 de outubro de 2016 23:08:32 PDT Magnus Fromreide wrote: > I think that is a mistake and that a "string" would be much better for the > version argument. The reason is that I imagine that it would be pretty > useful to write > > #once my::awesome::library "$Revision$" > > and have the VCS handle the generation and updating of the version field. And that's something you *shouldn't* do because if someone has a different checkout of the same header elsewhere in their build tree, with some typos corrected, it would be included and cause a build error. -- Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org Software Architect - Intel Open Source Technology Center -- You received this message because you are subscribed to the Google Groups "ISO C++ Standard - Future Proposals" group. To unsubscribe from this group and stop receiving emails from it, send an email to std-proposals+unsubscribe@isocpp.org. To post to this group, send email to std-proposals@isocpp.org. To view this discussion on the web visit https://groups.google.com/a/isocpp.org/d/msgid/std-proposals/3454801.ONyH2fmSmH%40tjmaciei-mobl1. .