diff -r 0ac4aa1737fd -r 6e0c3a8a914a src/array_list.c
--- a/src/array_list.c	Fri Oct 17 15:04:56 2025 +0200
+++ b/src/array_list.c	Fri Oct 17 16:53:24 2025 +0200
@@ -880,7 +880,7 @@
         const void *elem,
         int prepend
 ) {
-    struct cx_list_s *list = iter->src_handle.m;
+    struct cx_list_s *list = iter->src_handle;
     if (iter->index < list->collection.size) {
         if (cx_arl_insert_element(list,
                 iter->index + 1 - prepend, elem) == NULL) {
@@ -1091,7 +1091,7 @@
 
 static bool cx_arl_iter_valid(const void *it) {
     const struct cx_iterator_s *iter = it;
-    const struct cx_list_s *list = iter->src_handle.c;
+    const struct cx_list_s *list = iter->src_handle;
     return iter->index < list->collection.size;
 }
 
@@ -1104,25 +1104,25 @@
     struct cx_iterator_s *iter = it;
     if (iter->base.remove) {
         iter->base.remove = false;
-        cx_arl_remove(iter->src_handle.m, iter->index, 1, NULL);
+        cx_arl_remove(iter->src_handle, iter->index, 1, NULL);
         iter->elem_count--;
     } else {
         iter->index++;
         iter->elem_handle =
                 ((char *) iter->elem_handle)
-                + ((const struct cx_list_s *) iter->src_handle.c)->collection.elem_size;
+                + ((const struct cx_list_s *) iter->src_handle)->collection.elem_size;
     }
 }
 
 static void cx_arl_iter_prev(void *it) {
     struct cx_iterator_s *iter = it;
-    const cx_array_list *list = iter->src_handle.c;
     if (iter->base.remove) {
         iter->base.remove = false;
-        cx_arl_remove(iter->src_handle.m, iter->index, 1, NULL);
+        cx_arl_remove(iter->src_handle, iter->index, 1, NULL);
         iter->elem_count--;
     }
     iter->index--;
+    cx_array_list *list = iter->src_handle;
     if (iter->index < list->base.collection.size) {
         iter->elem_handle = ((char *) list->data)
                             + iter->index * list->base.collection.elem_size;
@@ -1138,7 +1138,7 @@
     struct cx_iterator_s iter;
 
     iter.index = index;
-    iter.src_handle.c = list;
+    iter.src_handle = (void*)list;
     iter.elem_handle = cx_arl_at(list, index);
     iter.elem_size = list->collection.elem_size;
     iter.elem_count = list->collection.size;
@@ -1146,7 +1146,7 @@
     iter.base.current = cx_arl_iter_current;
     iter.base.next = backwards ? cx_arl_iter_prev : cx_arl_iter_next;
     iter.base.remove = false;
-    iter.base.mutating = false;
+    iter.base.allow_remove = true;
 
     return iter;
 }