diff -u -r1.29 -r1.30
--- G4TrackerSD.cc	18 Dec 2006 21:21:20 -0000	1.29
+++ G4TrackerSD.cc	19 Dec 2006 21:27:18 -0000	1.30
@@ -1,4 +1,4 @@

-// $Header: /cvs/lcd/lcdd/src/G4TrackerSD.cc,v 1.29 2006/12/18 21:21:20 jeremy Exp $

+// $Header: /cvs/lcd/lcdd/src/G4TrackerSD.cc,v 1.30 2006/12/19 21:27:18 jeremy Exp $

 
 // LCDD
 #include "IdManager.hh"

@@ -92,12 +92,13 @@

 
 std::ostream& G4TrackerSD::printHits(std::ostream& os) const
 {

-  for (G4TrackerHitList::iterator iter = m_hits.begin();

+  for (G4TrackerHitList::const_iterator iter = m_hits.begin();

        iter != m_hits.end();
        iter++ ) {

-    os << **iter;

+    os << (*( const_cast< const G4TrackerHit* > (*iter) ));

   }
   os << std::endl;

+  return os;

 }
 
 void G4TrackerSD::EndOfEvent(G4HCofThisEvent *)