On 01/06/2011 03:15 PM, Eric Blake wrote:
>
> +# if __GNUC__ < 3 || (__GNUC__ == 3 && __GNUC_MINOR__ < 1)
> +# define ignore_value(x) ((void) (x))
> +# else
> static inline void _ignore_value (intptr_t p) { (void) p; }
> -# define ignore_value(x) _ignore_value ((intptr_t) x)
> +# define ignore_value(x) \
> + _ignore_value (({__typeof__(x) __x = (x); (intptr_t) __x;}))
> +# endif
In fact, the simpler:
# define ignore_value(x) (({__typeof__(x) __x = (x);(void)__x;}))
works on coreutils, and has the added perk of silencing _wur on aggregates!
--
Eric Blake [email protected] +1-801-349-2682
Libvirt virtualization library http://libvirt.org
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