Re: [PATCH 1/4] string-list: allow passing NULL for `get_entry_index`

> shejialuo <shejialuo@gmail.com> writes:
> 
> > Callers of `get_entry_index()` are required to pass a non-NULL
> > `exact_match` parameter to receive information about whether an exact
> > match is found. However, in some cases, callers only need the index
> > position.
> >
> > Let's allow callers to pass NULL for the `exact_match` parameter
> > when they don't need this information, reducing unnecessary variable
> > declarations in calling code.
> >
> > Signed-off-by: shejialuo <shejialuo@gmail.com>
> > ---
> >  string-list.c | 6 ++++--
> >  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> I do not quite see the point of adding these conditional assignments
> to clutter the control flow.  What benefit do these callers gain by
> not having to have a throw-away int variable on the stack and
> passing its address to the call chain?
>