Johannes Schindelin <johannes.schinde...@gmx.de> writes:
> It can be puzzling to see that was_tracked() tries to match an index
> entry by name even if cache_name_pos() returned a negative value. Let's
> clarify that cache_name_pos() implicitly looks for stage 0, while we are
> also okay with finding other stages.
>
> Signed-off-by: Johannes Schindelin <johannes.schinde...@gmx.de>
> ---
> merge-recursive.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/merge-recursive.c b/merge-recursive.c
> index 98f4632..bcb53f0 100644
> --- a/merge-recursive.c
> +++ b/merge-recursive.c
> @@ -658,6 +658,7 @@ static int was_tracked(const char *path)
> {
> int pos = cache_name_pos(path, strlen(path));
>
> + /* cache_name_pos() looks for stage == 0, so pos may be < 0 */
It returns >= if found at stage #0, or a negative (counting from -1)
to indicate where the path would be inserted if it were to be added
at stage #0.
The new comment does not explain how "pos may be < 0" leads to
"hence pos = -1 - pos is the right thing to do here". It is
misleading and we probably are better off without.
> if (pos < 0)
> pos = -1 - pos;
> while (pos < active_nr &&
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