29 #ifndef __MatrixShellSparse_H
30 #define __MatrixShellSparse_H 1
55 typedef typename super::value_type value_type;
56 typedef typename super::real_type real_type;
58 typedef boost::shared_ptr<sparse_matrix_type> sparse_matrix_ptrtype;
60 typedef typename super::vector_ptrtype vector_ptrtype;
131 sparse_matrix_ptrtype M_m;