From owner-svn-src-projects@FreeBSD.ORG Thu Jun 11 08:26:19 2009 Return-Path: Delivered-To: svn-src-projects@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id DA083106564A; Thu, 11 Jun 2009 08:26:19 +0000 (UTC) (envelope-from brde@optusnet.com.au) Received: from mail02.syd.optusnet.com.au (mail02.syd.optusnet.com.au [211.29.132.183]) by mx1.freebsd.org (Postfix) with ESMTP id 564CF8FC1D; Thu, 11 Jun 2009 08:26:19 +0000 (UTC) (envelope-from brde@optusnet.com.au) Received: from besplex.bde.org (c122-106-159-184.carlnfd1.nsw.optusnet.com.au [122.106.159.184]) by mail02.syd.optusnet.com.au (8.13.1/8.13.1) with ESMTP id n5B8PoLP028191 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 11 Jun 2009 18:25:52 +1000 Date: Thu, 11 Jun 2009 18:25:50 +1000 (EST) From: Bruce Evans X-X-Sender: bde@besplex.bde.org To: Ed Schouten In-Reply-To: <20090611065451.GR48776@hoeg.nl> Message-ID: <20090611182005.T786@besplex.bde.org> References: <200906082105.n58L5TsI043469@svn.freebsd.org> <20090610104029.GA18940@freebsd.org> <20090610104854.GN48776@hoeg.nl> <20090611113543.E21054@delplex.bde.org> <20090611065451.GR48776@hoeg.nl> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: svn-src-projects@FreeBSD.org, Roman Divacky , src-committers@FreeBSD.org, Bruce Evans Subject: Re: svn commit: r193755 - in projects/clangbsd: . bin/df bin/sh cddl/contrib/opensolaris/lib/libzfs/common contrib/llvm contrib/llvm/autoconf contrib/llvm/cmake contrib/llvm/cmake/modules contrib/llvm/... X-BeenThere: svn-src-projects@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "SVN commit messages for the src " projects" tree" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 11 Jun 2009 08:26:20 -0000 On Thu, 11 Jun 2009, Ed Schouten wrote: > * Bruce Evans wrote: >> On Wed, 10 Jun 2009, Ed Schouten wrote: >>> No, it doesn't. printf0 is just printf, but it allows fmt to be NULL. >> >> No it isn't. printf is just printf0, except it doesn't allow fmt to >> be NULL. FreeBSD extended printf to printf0, to support functions like >> err() where a NULL format is valid. > > Aren't you saying exactly the same thing as what I did? I don't think so. You said that printf0 is just printf. >>> Clang always allows this, even with printf. >> >> If so, this is a bug in Clang. > > I'm not calling it a bug. I'm calling it a missing feature of a GNU > extension. For the time being, this solution is sufficient. The clangbsd > branch isn't yet supposed to be pretty... I would call printf0 a non-GNU extension. AFAIK Gnu doesn't have it. There seem to be 2 bugs here in Clang: - Clang printf != Gnu printf, since Gnu printf doesn't allow null fmt. Maybe that is a FreeBSD extension too. - Clang printf0 doesn't exist yet, or is too simple. It is less surprising for Clang not to have FreeBSD extensions yet. Bruce