Re: [Xen-devel] [PATCH 14 of 18] tools/libvchan: fix build errors caused by Werror in io.c

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

Olaf Hering writes ("[PATCH 14 of 18] tools/libvchan: fix build errors caused 
by Werror in io.c"):
> tools/libvchan: fix build errors caused by Werror in io.c
...
> io.c:196: warning: ignoring return value of 'writev', declared with attribute 
> warn_unused_result
...
> -             writev(-1, iov, 2);
> +             /* Silence gcc warning, will always fail */
> +             if (writev(-1, iov, 2));

I still think this is an unpleasant idiom.  Does casting the result to
void not help ?

Ian.

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