Jiang Xin <worldhello....@gmail.com> writes:

> These two patches enhance relative_path() in path.c, so that function
> relative_path() will return real relative path, not a path strip off
> the prefix.
> The 2nd patch is a bit aggressive, it refactor all related functions,
> remove unnecessary arguments: len and/or prefix_len.

I did not particularly find the second one "aggressive"; it would
have been much more pleasant to review if the "drop unused 'len'"
part were made into a separate patch [3/2] as a follow-up, though.

It is a bit sad that relative_path() in [1/2] uses a single static
and fixed sized buffer.  How is the new implementation making sure
the expanded result does not overflow the buf[]?
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