TrigCompositeUtils::Combinations Node1 TrigCompositeUtils ::Combinations - m_filter + Combinations() + Combinations() + Combinations() + Combinations() + reserve() + empty() + size() + addLeg() + addLeg() + addLeg() + addLeg() + begin() + end() Node2 std::vector< std::size_t > + elements Node2->Node1 -m_legMultiplicities Node3 std::vector< VecLInfo_t > Node3->Node1 -m_legFeatures Node4 std::vector< T > Node4->Node3 +elements Node5 T Node5->Node4 +elements