Index: src/libcfa/rational
===================================================================
--- src/libcfa/rational	(revision 53a6c2a24c63e4878fd4222e11fef110ba3ee85a)
+++ src/libcfa/rational	(revision 4fbdfae0bcc812e14e8400b3c8e8fdba44da96c8)
@@ -31,6 +31,6 @@
 	int ?>?( T, T );
 	int ?>=?( T, T );
-	void ?{}( T *, zero_t );
-	void ?{}( T *, one_t );
+	void ?{}( T &, zero_t );
+	void ?{}( T &, one_t );
 	T +?( T );
 	T -?( T );
@@ -54,17 +54,17 @@
 
 forall( otype RationalImpl | arithmetic( RationalImpl ) )
-void ?{}( Rational(RationalImpl) * r );
+void ?{}( Rational(RationalImpl) & r );
 
 forall( otype RationalImpl | arithmetic( RationalImpl ) )
-void ?{}( Rational(RationalImpl) * r, RationalImpl n );
+void ?{}( Rational(RationalImpl) & r, RationalImpl n );
 
 forall( otype RationalImpl | arithmetic( RationalImpl ) )
-void ?{}( Rational(RationalImpl) * r, RationalImpl n, RationalImpl d );
+void ?{}( Rational(RationalImpl) & r, RationalImpl n, RationalImpl d );
 
 forall( otype RationalImpl | arithmetic( RationalImpl ) )
-void ?{}( Rational(RationalImpl) * r, zero_t );
+void ?{}( Rational(RationalImpl) & r, zero_t );
 
 forall( otype RationalImpl | arithmetic( RationalImpl ) )
-void ?{}( Rational(RationalImpl) * r, one_t );
+void ?{}( Rational(RationalImpl) & r, one_t );
 
 // numerator/denominator getter
@@ -77,5 +77,5 @@
 
 forall( otype RationalImpl | arithmetic( RationalImpl ) )
-[ RationalImpl, RationalImpl ] ?=?( * [ RationalImpl, RationalImpl ] dest, Rational(RationalImpl) src );
+[ RationalImpl, RationalImpl ] ?=?( & [ RationalImpl, RationalImpl ] dest, Rational(RationalImpl) src );
 
 // numerator/denominator setter