Index: src/libcfa/iterator
===================================================================
--- src/libcfa/iterator	(revision 53a6c2a24c63e4878fd4222e11fef110ba3ee85a)
+++ src/libcfa/iterator	(revision 795d4506f70255b7275c3eb2195588d82be797eb)
@@ -19,7 +19,7 @@
 trait iterator( otype iterator_type, otype elt_type ) {
 	// point to the next element
-//	iterator_type ?++( iterator_type * );
-	iterator_type ++?( iterator_type * );
-	iterator_type --?( iterator_type * );
+//	iterator_type ?++( iterator_type & );
+	iterator_type ++?( iterator_type & );
+	iterator_type --?( iterator_type & );
 
 	// can be tested for equality with other iterators