diff -r f549fd9fbd8f -r 54565fd74e74 src/cx/iterator.h
--- a/src/cx/iterator.h	Wed Sep 18 00:02:18 2024 +0200
+++ b/src/cx/iterator.h	Sat Sep 28 15:47:28 2024 +0200
@@ -43,7 +43,7 @@
      * True iff the iterator points to valid data.
      */
     __attribute__ ((__nonnull__))
-    bool (*valid)(void const *);
+    bool (*valid)(const void *);
 
     /**
      * Returns a pointer to the current element.
@@ -51,13 +51,13 @@
      * When valid returns false, the behavior of this function is undefined.
      */
     __attribute__ ((__nonnull__))
-    void *(*current)(void const *);
+    void *(*current)(const void *);
 
     /**
      * Original implementation in case the function needs to be wrapped.
      */
     __attribute__ ((__nonnull__))
-    void *(*current_impl)(void const *);
+    void *(*current_impl)(const void *);
 
     /**
      * Advances the iterator.
@@ -104,7 +104,7 @@
         /**
          * Access for normal iterators.
          */
-        void const *c;
+        const void *c;
     } src_handle;
 
     /**
@@ -115,7 +115,7 @@
         /**
          * A pointer to the key.
          */
-        void const *key;
+        const void *key;
         /**
          * A pointer to the value.
          */
@@ -226,7 +226,7 @@
  */
 __attribute__((__warn_unused_result__))
 CxIterator cxIterator(
-        void const *array,
+        const void *array,
         size_t elem_size,
         size_t elem_count
 );