Most of the same operators and functions on sparse matrices that are
available from the Octave are equally available with oct-files.
The basic means of extracting a sparse matrix from an
and returning them as an
octave_value, can be seen in the
octave_value_list retval; SparseMatrix sm = args(0).sparse_matrix_value (); SparseComplexMatrix scm = args(1).sparse_complex_matrix_value (); SparseBoolMatrix sbm = args(2).sparse_bool_matrix_value (); ... retval(2) = sbm; retval(1) = scm; retval(0) = sm;
The conversion to an octave-value is handled by the sparse
octave_value constructors, and so no special care is needed.