diff -r 2e8878770de0 -r 8aea65ae1eaf src/cx/linked_list.h
--- a/src/cx/linked_list.h	Sun Mar 06 13:57:36 2022 +0100
+++ b/src/cx/linked_list.h	Sat Apr 09 16:37:43 2022 +0200
@@ -56,7 +56,7 @@
  * @return the created list
  */
 CxList *cxLinkedListCreate(
-        CxAllocator *allocator,
+        CxAllocator const *allocator,
         CxListComparator comparator,
         size_t item_size
 ) __attribute__((__nonnull__));
@@ -71,7 +71,7 @@
  * @return the created list
  */
 CxList *cxPointerLinkedListCreate(
-        CxAllocator *allocator,
+        CxAllocator const *allocator,
         CxListComparator comparator
 ) __attribute__((__nonnull__));
 
@@ -86,7 +86,7 @@
  * @return the created list
  */
 CxList *cxLinkedListFromArray(
-        CxAllocator *allocator,
+        CxAllocator const *allocator,
         CxListComparator comparator,
         size_t item_size,
         size_t num_items,
@@ -111,7 +111,7 @@
  * @return the node found at the specified index
  */
 void *cx_linked_list_at(
-        void *start,
+        void const *start,
         size_t start_index,
         ptrdiff_t loc_advance,
         size_t index
@@ -150,7 +150,7 @@
  * @return a pointer to the first node
  */
 void *cx_linked_list_first(
-        void *node,
+        void const *node,
         ptrdiff_t loc_prev
 ) __attribute__((__nonnull__));
 
@@ -166,7 +166,7 @@
  * @return a pointer to the last node
  */
 void *cx_linked_list_last(
-        void *node,
+        void const *node,
         ptrdiff_t loc_next
 ) __attribute__((__nonnull__));
 
@@ -181,9 +181,9 @@
  * @return the node or \c NULL if \p node has no predecessor
  */
 void *cx_linked_list_prev(
-        void *begin,
+        void const *begin,
         ptrdiff_t loc_next,
-        void *node
+        void const *node
 ) __attribute__((__nonnull__));
 
 /**