string-list: fix sign compare warnings for loop iterator

There are a couple of "-Wsign-compare" warnings in "string-list.c". Fix trivial ones that result from a mismatched loop iterator type. There is a single warning left after these fixes. This warning needs a bit more care and is thus handled in subsequent commits. Signed-off-by: shejialuo <shejialuo@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

shejialuo committed Jun 29, 2025 at 12:27 UTC ba472ab2f1b1af8ccb9768859fa56e2d136a759e
1 file changed +10 -12
string-list.c
+10 -12
@@ -116,9 +116,9 @@ struct string_list_item *string_list_lookup(struct string_list *list, const char
116 void string_list_remove_duplicates(struct string_list *list, int free_util)
117 {
118 if (list->nr > 1) {
119 - int src, dst;
119 + size_t dst = 1;
120 compare_strings_fn cmp = list->cmp ? list->cmp : strcmp;
121 - for (src = dst = 1; src < list->nr; src++) {
121 + for (size_t src = 1; src < list->nr; src++) {
122 if (!cmp(list->items[dst - 1].string, list->items[src].string)) {
123 if (list->strdup_strings)
124 free(list->items[src].string);
@@ -134,8 +134,8 @@ void string_list_remove_duplicates(struct string_list *list, int free_util)
134 int for_each_string_list(struct string_list *list,
135 string_list_each_func_t fn, void *cb_data)
136 {
137 - int i, ret = 0;
138 - for (i = 0; i < list->nr; i++)
137 + int ret = 0;
138 + for (size_t i = 0; i < list->nr; i++)
139 if ((ret = fn(&list->items[i], cb_data)))
140 break;
141 return ret;
@@ -144,8 +144,8 @@ int for_each_string_list(struct string_list *list,
144 void filter_string_list(struct string_list *list, int free_util,
145 string_list_each_func_t want, void *cb_data)
146 {
147 - int src, dst = 0;
148 - for (src = 0; src < list->nr; src++) {
147 + size_t dst = 0;
148 + for (size_t src = 0; src < list->nr; src++) {
149 if (want(&list->items[src], cb_data)) {
150 list->items[dst++] = list->items[src];
151 } else {
@@ -171,13 +171,12 @@ void string_list_remove_empty_items(struct string_list *list, int free_util)
171 void string_list_clear(struct string_list *list, int free_util)
172 {
173 if (list->items) {
174 - int i;
174 if (list->strdup_strings) {
176 - for (i = 0; i < list->nr; i++)
175 + for (size_t i = 0; i < list->nr; i++)
176 free(list->items[i].string);
177 }
178 if (free_util) {
180 - for (i = 0; i < list->nr; i++)
179 + for (size_t i = 0; i < list->nr; i++)
180 free(list->items[i].util);
181 }
182 free(list->items);
@@ -189,13 +188,12 @@ void string_list_clear(struct string_list *list, int free_util)
188 void string_list_clear_func(struct string_list *list, string_list_clear_func_t clearfunc)
189 {
190 if (list->items) {
192 - int i;
191 if (clearfunc) {
194 - for (i = 0; i < list->nr; i++)
192 + for (size_t i = 0; i < list->nr; i++)
193 clearfunc(list->items[i].util, list->items[i].string);
194 }
195 if (list->strdup_strings) {
198 - for (i = 0; i < list->nr; i++)
196 + for (size_t i = 0; i < list->nr; i++)
197 free(list->items[i].string);
198 }
199 free(list->items);