Sometimes users need to lookup a string in an unsorted string_list. In
that case they should use this function instead of the version for
sorted strings.
Signed-off-by: Stephen Boyd <bebarino@xxxxxxxxx>
---
Documentation/technical/api-string-list.txt | 6 +++++-
string-list.c | 13 ++++++++++---
string-list.h | 3 ++-
3 files changed, 17 insertions(+), 5 deletions(-)
diff --git a/Documentation/technical/api-string-list.txt b/Documentation/technical/api-string-list.txt
index 293bb15..6d8c24b 100644
--- a/Documentation/technical/api-string-list.txt
+++ b/Documentation/technical/api-string-list.txt
@@ -104,8 +104,12 @@ write `string_list_insert(...)->util = ...;`.
`unsorted_string_list_has_string`::
It's like `string_list_has_string()` but for unsorted lists.
+
+`unsorted_string_list_lookup`::
+
+ It's like `string_list_lookup()` but for unsorted lists.
+
-This function needs to look through all items, as opposed to its
+The above two functions need to look through all items, as opposed to their
counterpart for sorted lists, which performs a binary search.
Data structures
diff --git a/string-list.c b/string-list.c
index 1ac536e..c9ad7fc 100644
--- a/string-list.c
+++ b/string-list.c
@@ -168,12 +168,19 @@ void sort_string_list(struct string_list *list)
qsort(list->items, list->nr, sizeof(*list->items), cmp_items);
}
-int unsorted_string_list_has_string(struct string_list *list, const char *string)
+struct string_list_item *unsorted_string_list_lookup(struct string_list *list,
+ const char *string)
{
int i;
for (i = 0; i < list->nr; i++)
if (!strcmp(string, list->items[i].string))
- return 1;
- return 0;
+ return list->items + i;
+ return NULL;
+}
+
+int unsorted_string_list_has_string(struct string_list *list,
+ const char *string)
+{
+ return unsorted_string_list_lookup(list, string) != NULL;
}
diff --git a/string-list.h b/string-list.h
index 6569cf6..63b69c8 100644
--- a/string-list.h
+++ b/string-list.h
@@ -38,5 +38,6 @@ struct string_list_item *string_list_lookup(const char *string, struct string_li
struct string_list_item *string_list_append(const char *string, struct string_list *list);
void sort_string_list(struct string_list *list);
int unsorted_string_list_has_string(struct string_list *list, const char *string);
-
+struct string_list_item *unsorted_string_list_lookup(struct string_list *list,
+ const char *string);
#endif /* STRING_LIST_H */
--
1.7.0.3.254.g4503b
--
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