Trk::AlMat::AlMat_row Node1 Trk::AlMat::AlMat_row - m_r + AlMat_row() + operator[]() Node2 Trk::AlMat # m_ncol # m_nrow # m_nele # m_ptr_data # m_transpose + AlMat() + AlMat() + AlMat() + ~AlMat() + operator[]() + operator[]() + nrow() + ncol() + Print() + operator=() and 25 more... # elem() - copy() - copy() Node2->Node1 -m_a Node3 std::string Node3->Node2 #m_pathbin #m_pathtxt Node4 std::basic_string< char > Node4->Node3