empty function macros

Roman Divacky rdivacky at freebsd.org
Mon Jan 31 08:10:18 UTC 2011


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
> _______________________________________________
> freebsd-hackers at freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-hackers
> To unsubscribe, send any mail to "freebsd-hackers-unsubscribe at freebsd.org"


More information about the freebsd-hackers mailing list