Date: Tue, 1 Feb 2011 16:19:46 +0100 From: Roman Divacky <rdivacky@freebsd.org> To: Alexander Best <arundel@freebsd.org> Cc: freebsd-hackers@freebsd.org Subject: Re: empty function macros Message-ID: <20110201151946.GA28197@freebsd.org> In-Reply-To: <20110201112501.GA99666@freebsd.org> References: <20110130172941.GA10701@freebsd.org> <20110131075439.GA49765@freebsd.org> <20110131095158.GC98011@freebsd.org> <20110201081236.GA63338@freebsd.org> <20110201112501.GA99666@freebsd.org>
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On Tue, Feb 01, 2011 at 11:25:01AM +0000, Alexander Best wrote:
> On Tue Feb 1 11, Roman Divacky wrote:
> > On Mon, Jan 31, 2011 at 09:51:58AM +0000, Alexander Best wrote:
> > > On Mon Jan 31 11, Roman Divacky wrote:
> > > > no problem with this with clang :)
> > >
> > > hmmmmm....so compiling the following code
> > >
> > > int
> > > main(int argc, char **argv)
> > > {
> > > if (1<2)
> > > ;
> > > }
> > >
> > > with clang -Werror code.c -o code works for you?
> >
> > if (1<2)
> > ;
> >
> > gives a warning (and it should), on the other hand
> >
> > #define NOTHING
> >
> > if (1<2)
> > NOTHING;
> >
> > does not warn, which is what you want right?
>
> actually
>
> #define NOTHING
>
> int
> main(int argc, char **argv)
> {
> if (1<2)
> NOTHING;
>
> return (0);
> }
>
> *does* warn for me:
>
> otaku% clang test.c -o test
> test.c:7:12: warning: if statement has empty body [-Wempty-body]
> NOTHING;
> ^
> 1 warning generated.
are you using clang2.8? if so this is 2.9 feature then :)
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