//////////////////////////////////////////////////////////////////////////////////////
+//_____________________________________________________________________________
+AliTRDqaBuildReference &AliTRDqaBuildReference::operator=(const AliTRDqaBuildReference &qadm)
+{
+ //
+ // Assignment operator
+ //
+
+ if (this != &qadm) {
+ ((AliTRDqaBuildReference &) qadm).Copy(*this);
+ }
+
+ return *this;
+
+}
+
+//_____________________________________________________________________________
+void AliTRDqaBuildReference::Copy(TObject &/*qadm*/) const
+{
+ //
+ // Copy function
+ //
+
+}
+
void AliTRDqaBuildReference::BuildRefHistos(TFile *file) const
{
//