Constify a bit more

jvoisin · Nov 6, 2020 · e6e6728 · e6e6728
1 parent 6945936
commit e6e6728
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Showing 3 changed files with 6 additions and 4 deletions.
diff --git a/src/sp_list.c b/src/sp_list.c
@@ -10,7 +10,8 @@ void sp_list_free(sp_list_node *node) {
 
 // Thanks to https://en.wikipedia.org/wiki/Insertion_sort :>
 sp_list_node *sp_list_sort(sp_list_node *pList,
-                           int (*cmp_func)(sp_list_node *, sp_list_node *)) {
+                           int (*cmp_func)(sp_list_node const *const,
+                                           sp_list_node const *const)) {
   sp_list_node *head = NULL;
 
   if (pList == NULL || pList->next == NULL) {

diff --git a/src/sp_list.h b/src/sp_list.h
@@ -7,8 +7,8 @@ typedef struct sp_node_s {
 
 } sp_list_node;
 
-sp_list_node *sp_list_sort(sp_list_node *,
-                           int (*)(sp_list_node *, sp_list_node *));
+sp_list_node *sp_list_sort(sp_list_node *, int (*)(sp_list_node const *const,
+                                                   sp_list_node const *const));
 sp_list_node *sp_list_insert(sp_list_node *, void *);
 sp_list_node *sp_list_prepend(sp_list_node *, void *);
 void sp_list_free(sp_list_node *);

diff --git a/src/sp_var_parser.c b/src/sp_var_parser.c
@@ -85,7 +85,8 @@ static int create_var(sp_tree *tree, const char *restrict value,
   return 0;
 }
 
-int cmp_tokens(sp_list_node *list1, sp_list_node *list2) {
+int cmp_tokens(sp_list_node const *const list1,
+               sp_list_node const *const list2) {
   return (((sp_conf_token *)list1->data)->pos -
           ((sp_conf_token *)list2->data)->pos);
 }