Re: [PATCH nft 1/3] nft: add NFT_ARRAY_SIZE() helper

[Thomas Haller <thaller@redhat.com>]

On Wed, 2023-09-27 at 14:23 +0200, Thomas Haller wrote:
> Add NFT_ARRAY_SIZE() macro, commonly known as ARRAY_SIZE() (or
> G_N_ELEMENTS()).
> 
> <nft.h> is the right place for macros and static-inline functions. It
> is
> included in *every* C sources, as it only depends on libc headers and
> <config.h>. NFT_ARRAY_SIZE() is part of the basic toolset, that
> should
> be available everywhere.
> 
> Signed-off-by: Thomas Haller <thaller@redhat.com>
> ---
>  include/nft.h | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/include/nft.h b/include/nft.h
> index 9384054c11c8..4463b5c0fa4a 100644
> --- a/include/nft.h
> +++ b/include/nft.h
> @@ -8,4 +8,6 @@
>  #include <stdint.h>
>  #include <stdlib.h>
>  
> +#define NFT_ARRAY_SIZE(arr) (sizeof(arr)/sizeof((arr)[0]))
> +
>  #endif /* NFTABLES_NFT_H */

oh, I just found the "array_size()" macro. Didn't expect it to be
lower-case.

Will use that in v2.

Thomas