InDet::TrackStatHelper::Counter4D< N_Categories, N_Types, N_Regions, N_SubCategories, T_Int > Node1 InDet::TrackStatHelper ::Counter4D< N_Categories, N_Types, N_Regions, N_SubCategories, T_Int > + Counter4D() + reset() + operator+=() Node2 long Node2->Node1 +m_counter