diff -r b2bc48c2b251 -r adb4e0737c33 src/iterator.c
--- a/src/iterator.c	Thu May 23 15:05:24 2024 +0200
+++ b/src/iterator.c	Thu May 23 18:21:08 2024 +0200
@@ -83,7 +83,7 @@
     }
 }
 
-CxMutIterator cxIterator(
+CxMutIterator cxMutIterator(
         void *array,
         size_t elem_size,
         size_t elem_count,
@@ -104,3 +104,17 @@
 
     return iter;
 }
+
+CxIterator cxIterator(
+        void const *array,
+        size_t elem_size,
+        size_t elem_count
+) {
+    CxMutIterator iter = cxMutIterator((void*)array, elem_size, elem_count, false);
+    iter.base.mutating = false;
+
+    // we know the iterators share the same memory layout
+    CxIterator ret;
+    memcpy(&ret, &iter, sizeof(CxIterator));
+    return ret;
+}