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@xxxxxxxxx> --- string-list.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/string-list.c b/string-list.c index 343cf1ca90..bf358d1a5c 100644 --- a/string-list.c +++ b/string-list.c @@ -29,12 +29,14 @@ static size_t get_entry_index(const struct string_list *list, const char *string else if (compare > 0) left = middle + 1; else { - *exact_match = 1; + if (exact_match) + *exact_match = 1; return middle; } } - *exact_match = 0; + if (exact_match) + *exact_match = 0; return right; } -- 2.51.0