Date: Thu, 11 Jun 2009 18:25:50 +1000 (EST) From: Bruce Evans <brde@optusnet.com.au> To: Ed Schouten <ed@80386.nl> Cc: svn-src-projects@FreeBSD.org, Roman Divacky <rdivacky@FreeBSD.org>, src-committers@FreeBSD.org, Bruce Evans <brde@optusnet.com.au> 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/... Message-ID: <20090611182005.T786@besplex.bde.org> In-Reply-To: <20090611065451.GR48776@hoeg.nl> References: <200906082105.n58L5TsI043469@svn.freebsd.org> <20090610104029.GA18940@freebsd.org> <20090610104854.GN48776@hoeg.nl> <20090611113543.E21054@delplex.bde.org> <20090611065451.GR48776@hoeg.nl>
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On Thu, 11 Jun 2009, Ed Schouten wrote: > * Bruce Evans <brde@optusnet.com.au> 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
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