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authorshejialuo <shejialuo@gmail.com>2025-06-29 12:27:57 +0800
committerJunio C Hamano <gitster@pobox.com>2025-07-07 08:07:46 -0700
commit885becd9c4aec6c3764b4c701baf41853b49899e (patch)
treebc5d9ccd36a5948478571da2fe65353f3807cef0
parentstring-list: remove unused "insert_at" parameter from add_entry (diff)
downloadgit-885becd9c4aec6c3764b4c701baf41853b49899e.tar.gz
git-885becd9c4aec6c3764b4c701baf41853b49899e.zip
string-list: return index directly when inserting an existing element
When inserting an existing element, "add_entry" would convert "index" value to "-1-index" to indicate the caller that this element is in the list already. However, in "string_list_insert", we would simply convert this to the original positive index without any further action. In 8fd2cb4069 (Extract helper bits from c-merge-recursive work, 2006-07-25), we create "path-list.c" and then introduce above code path. Let's directly return the index as we don't care about whether the element is in the list by using "add_entry". In the future, if we want to let "add_entry" tell the caller, we may add "int *exact_match" parameter to "add_entry" instead of converting the index to negative to indicate. Signed-off-by: shejialuo <shejialuo@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--string-list.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/string-list.c b/string-list.c
index 8540c29bc9..171cef5dbb 100644
--- a/string-list.c
+++ b/string-list.c
@@ -40,14 +40,13 @@ static int get_entry_index(const struct string_list *list, const char *string,
return right;
}
-/* returns -1-index if already exists */
static int add_entry(struct string_list *list, const char *string)
{
int exact_match = 0;
int index = get_entry_index(list, string, &exact_match);
if (exact_match)
- return -1 - index;
+ return index;
ALLOC_GROW(list->items, list->nr+1, list->alloc);
if (index < list->nr)
@@ -65,9 +64,6 @@ struct string_list_item *string_list_insert(struct string_list *list, const char
{
int index = add_entry(list, string);
- if (index < 0)
- index = -1 - index;
-
return list->items + index;
}