Hi Werner,

On Wed, Jul 24, 2013 at 10:25:03AM -0300, Werner Almesberger wrote:
> Alexander Aring wrote:
> > +#define is_addr_link_local(a) (((a)->s6_addr16[0]) == htons(0xFE80) &&     
> > \
> > +           (((a)->s6_addr16[1]) == 0) &&   \
> > +           (((a)->s6_addr16[2]) == 0) &&   \
> > +           (((a)->s6_addr16[3]) == 0))
> 
> More parenthesis paranoia: the (a) is good and so are the outermost
> parentheses. The ones around the tests for equality are a pascalism
> (alas, rather common). The ones around  (a)->s6_addr16[*]  are just
> weird.
> 

Ok, I don't like it myself, but then I can fix it for all macros that
checks is_addr_XXXX. I use the same style for this...

So should I change it only for this or for all macros?

- Alex

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