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Date: Mon, 31 Jan 2011 08:54:39 +0100
From: Roman Divacky <rdivacky@freebsd.org>
To: Alexander Best <arundel@freebsd.org>
Message-ID: <20110131075439.GA49765@freebsd.org>
References: <20110130172941.GA10701@freebsd.org>
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Cc: freebsd-hackers@freebsd.org
Subject: Re: empty function macros
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no problem with this with clang :)

On Sun, Jan 30, 2011 at 05:29:41PM +0000, Alexander Best wrote:
> hi there,
> 
> i noticed freebsd has a few of the following macros:
> 
> #define FUNC(sb)
> 
> when you do something like
> 
> if (cond)
>     FUNC(i)
> 
> the compiler complains about an if statement with an empty body. any sensible
> way of dealing with this issue?
> 
> i saw some reiserfs code which does the following to silence compilers:
> 
> #define FUNC(sb) do { } while (0)
> 
> cheers.
> alex
> 
> -- 
> a13x
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