[libvirt] [dbus RFC 01/11] util: introduce VIRT_ARRAY_CARDINALITY macro

[Daniel P. Berrange]

On Mon, Jan 22, 2018 at 06:15:59PM +0100, Pavel Hrdina wrote:
> Signed-off-by: Pavel Hrdina <phrdina at redhat.com>
> ---
>  src/util.h | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/src/util.h b/src/util.h
> index 0c9f3d7..6d99841 100644
> --- a/src/util.h
> +++ b/src/util.h
> @@ -8,6 +8,8 @@
>  #define _cleanup_(_x) __attribute__((__cleanup__(_x)))
>  #define VIR_ATTR_UNUSED __attribute__((__unused__))
>  
> +#define VIRT_ARRAY_CARDINALITY(array) (sizeof(array) / sizeof(*(array)))
> +
>  
>  int
>  virtDBusUtilMessageAppendTypedParameters(sd_bus_message *message,

Reviewed-by: Daniel P. Berrange <berrange at redhat.com>

Though if I was naming this again in libvirt I would follow glib and call
it VIR_N_ELEMENTS as it way shorter & easier to spell than the word
CARDINALITY :-)  Your call !

Regards,
Daniel
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