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Re: [PATCH 03/14] builtin/mktree: remove hard-coded constant




On Mon, Oct 8, 2018 at 2:57 PM brian m. carlson
<sandals@xxxxxxxxxxxxxxxxxxxx> wrote:
>
> Instead of using a hard-coded constant for the size of a hex object ID,
> switch to use the computed pointer from parse_oid_hex that points after
> the parsed object ID.
>
> Signed-off-by: brian m. carlson <sandals@xxxxxxxxxxxxxxxxxxxx>
> ---
>  builtin/mktree.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/builtin/mktree.c b/builtin/mktree.c
> index 2dc4ad6ba8..94e82b8504 100644
> --- a/builtin/mktree.c
> +++ b/builtin/mktree.c
> @@ -98,7 +98,7 @@ static void mktree_line(char *buf, size_t len, int nul_term_line, int allow_miss
>
>         *ntr++ = 0; /* now at the beginning of SHA1 */
>
> -       path = ntr + 41;  /* at the beginning of name */
> +       path = (char *)p + 1;  /* at the beginning of name */

... and we need the cast to un-const p such that path takes it.
Makes sense.