Re: [PATCH v4 4/9] checkout.[ch]: introduce an *_INIT macro

[Junio C Hamano <gitster@pobox.com>]

Ævar Arnfjörð Bjarmason  <avarab@gmail.com> writes:

> Add an *_INIT macro for the tracking_name_data similar to what exists
> elsewhere in the codebase, e.g. OID_ARRAY_INIT in sha1-array.h. This
> will make it more idiomatic in later changes to add more fields to the
> struct & its initialization macro.

Makes sense; Thomas's comment on 3/9 still stands at this point, as
we have no outside users of the definition of the callback data yet
at this point.

>
> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
> ---
>  checkout.c | 2 +-
>  checkout.h | 2 ++
>  2 files changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/checkout.c b/checkout.c
> index 8d68f75ad1..629fc1d5c4 100644
> --- a/checkout.c
> +++ b/checkout.c
> @@ -25,7 +25,7 @@ static int check_tracking_name(struct remote *remote, void *cb_data)
>  
>  const char *unique_tracking_name(const char *name, struct object_id *oid)
>  {
> -	struct tracking_name_data cb_data = { NULL, NULL, NULL, 1 };
> +	struct tracking_name_data cb_data = TRACKING_NAME_DATA_INIT;
>  	cb_data.src_ref = xstrfmt("refs/heads/%s", name);
>  	cb_data.dst_oid = oid;
>  	for_each_remote(check_tracking_name, &cb_data);
> diff --git a/checkout.h b/checkout.h
> index 04b52f9ffe..a61ec93e65 100644
> --- a/checkout.h
> +++ b/checkout.h
> @@ -10,6 +10,8 @@ struct tracking_name_data {
>  	int unique;
>  };
>  
> +#define TRACKING_NAME_DATA_INIT { NULL, NULL, NULL, 1 }
> +
>  /*
>   * Check if the branch name uniquely matches a branch name on a remote
>   * tracking branch.  Return the name of the remote if such a branch