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[PATCH v2 2/8] string-list: remove unused "insert_at" parameter from add_entry

From
shejialuo <shejialuo@gmail.com>
Date
May 18, 2025, 15:57 UTC
Message-ID
<aCoDU46MmoGPB60b@ArchLinux>
In-Reply-To
<aCoDB9P5XV1lHMil@ArchLinux>

In "add_entry", we accept "insert_at" parameter which must be either -1 (auto) or between 0 and `list->nr` inclusive. Any other value is invalid. When caller specify any invalid "insert_at" value, we won't check the range and move the element, which would definitely cause the trouble.

However, we only use "add_entry" in "string_list_insert" function and we always pass the "-1" for "insert_at" parameter. So, we never use this parameter to insert element in a user specified position. Let's delete this parameter. If there is any requirement later, we need to use a better way to do this.

Signed-off-by: shejialuo <shejialuo@gmail.com>
---
 string-list.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/string-list.c b/string-list.c
index 801ece0cba..8540c29bc9 100644
--- a/string-list.c
+++ b/string-list.c
@@ -41,10 +41,10 @@ static int get_entry_index(const struct string_list *list, const char *string,
 }
 
 /* returns -1-index if already exists */
-static int add_entry(int insert_at, struct string_list *list, const char *string)
+static int add_entry(struct string_list *list, const char *string)
 {
 	int exact_match = 0;
-	int index = insert_at != -1 ? insert_at : get_entry_index(list, string, &exact_match);
+	int index = get_entry_index(list, string, &exact_match);
 
 	if (exact_match)
 		return -1 - index;
@@ -63,7 +63,7 @@ static int add_entry(int insert_at, struct string_list *list, const char *string
 
 struct string_list_item *string_list_insert(struct string_list *list, const char *string)
 {
-	int index = add_entry(-1, list, string);
+	int index = add_entry(list, string);
 
 	if (index < 0)
 		index = -1 - index;
-- 
2.49.0
Previous: shejialuoNext: Patrick Steinhardt
Message 20 of 52 in “enhance "string_list" code and test”
  1. 0/5 enhance "string_list" code and testshejialuo, Apr 22, 2025
  2. 1/5 string-list: fix sign compare warningsshejialuo, Apr 22, 2025
  3. Junio C HamanoApr 22, 2025
  4. shejialuoApr 24, 2025
  5. 2/5 u-string-list: move "test_split" into "u-string-list.c"shejialuo, Apr 22, 2025
  6. Junio C HamanoApr 22, 2025
  7. shejialuoApr 24, 2025
  8. Patrick SteinhardtApr 23, 2025
  9. shejialuoApr 24, 2025
  10. 3/5 u-string-list: move "test_split_in_place" to "u-string-list.c"shejialuo, Apr 22, 2025
  11. Patrick SteinhardtApr 23, 2025
  12. 4/5 u-string-list: move "filter string" test to "u-string-list.c"shejialuo, Apr 22, 2025
  13. 5/5 u-string-list: move "remove duplicates" test to "u-string-list.c"shejialuo, Apr 22, 2025
  14. Patrick SteinhardtApr 23, 2025
  15. shejialuoApr 24, 2025
  16. 0/8 enhance "string_list" code and testshejialuo, May 18, 2025
  17. 1/8 string-list: fix sign compare warnings for loop iteratorshejialuo, May 18, 2025
  18. Patrick SteinhardtMay 19, 2025
  19. shejialuoMay 26, 2025
  20. 2/8 string-list: remove unused "insert_at" parameter from add_entryshejialuo, May 18, 2025
  21. Patrick SteinhardtMay 19, 2025
  22. shejialuoMay 26, 2025
  23. Jeff KingMay 19, 2025
  24. shejialuoMay 26, 2025
  25. Patrick SteinhardtMay 26, 2025
  26. 3/8 string-list: return index directly when inserting an existing elementshejialuo, May 18, 2025
  27. Patrick SteinhardtMay 19, 2025
  28. shejialuoMay 26, 2025
  29. Jeff KingMay 19, 2025
  30. shejialuoMay 26, 2025
  31. 4/8 string-list: enable sign compare warnings checkshejialuo, May 18, 2025
  32. Patrick SteinhardtMay 19, 2025
  33. shejialuoMay 26, 2025
  34. 5/8 u-string-list: move "test_split" into "u-string-list.c"shejialuo, May 18, 2025
  35. Patrick SteinhardtMay 19, 2025
  36. 6/8 u-string-list: move "test_split_in_place" to "u-string-list.c"shejialuo, May 18, 2025
  37. 7/8 u-string-list: move "filter string" test to "u-string-list.c"shejialuo, May 18, 2025
  38. Patrick SteinhardtMay 19, 2025
  39. shejialuoMay 26, 2025
  40. 8/8 u-string-list: move "remove duplicates" test to "u-string-list.c"shejialuo, May 18, 2025
  41. Patrick SteinhardtMay 19, 2025
  42. 0/8 enhance "string_list" code and testshejialuo, Jun 29, 2025
  43. 1/8 string-list: fix sign compare warnings for loop iteratorshejialuo, Jun 29, 2025
  44. 2/8 string-list: remove unused "insert_at" parameter from add_entryshejialuo, Jun 29, 2025
  45. 3/8 string-list: return index directly when inserting an existing elementshejialuo, Jun 29, 2025
  46. 4/8 string-list: enable sign compare warnings checkshejialuo, Jun 29, 2025
  47. 5/8 u-string-list: move "test_split" into "u-string-list.c"shejialuo, Jun 29, 2025
  48. 6/8 u-string-list: move "test_split_in_place" to "u-string-list.c"shejialuo, Jun 29, 2025
  49. 7/8 u-string-list: move "filter string" test to "u-string-list.c"shejialuo, Jun 29, 2025
  50. 8/8 u-string-list: move "remove duplicates" test to "u-string-list.c"shejialuo, Jun 29, 2025
  51. Patrick SteinhardtJul 4, 2025
  52. Junio C HamanoJul 7, 2025

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