Index: src/libcfa/rational
===================================================================
--- src/libcfa/rational	(revision 53a8e68bb29ee1058f8e4557c98ee2f853273859)
+++ src/libcfa/rational	(revision 2ae171d8401152d8289643ca2935d2f09ce16b41)
@@ -12,6 +12,6 @@
 // Created On       : Wed Apr  6 17:56:25 2016
 // Last Modified By : Peter A. Buhr
-// Last Modified On : Fri Jul  7 09:34:33 2017
-// Update Count     : 93
+// Last Modified On : Wed Aug 23 22:35:09 2017
+// Update Count     : 95
 //
 
@@ -135,6 +135,6 @@
 // I/O
 forall( otype RationalImpl | arithmetic( RationalImpl ) )
-forall( dtype istype | istream( istype ) | { istype * ?|?( istype *, RationalImpl * ); } )
-istype * ?|?( istype *, Rational(RationalImpl) * );
+forall( dtype istype | istream( istype ) | { istype * ?|?( istype *, RationalImpl & ); } )
+istype * ?|?( istype *, Rational(RationalImpl) & );
 
 forall( otype RationalImpl | arithmetic( RationalImpl ) )