28   DenseMatrix mat_d = DenseMatrix::Zero(rows, cols), up_sym_d, lo_sym_d, res_d;  in sparse_permutations()  local
30   initSparse<Scalar>(density, mat_d, mat, 0);  in sparse_permutations()
35   up_sym_d = mat_d.template selfadjointView<Upper>();  in sparse_permutations()
36   lo_sym_d = mat_d.template selfadjointView<Lower>();  in sparse_permutations()
38   VERIFY_IS_APPROX(mat, mat_d);  in sparse_permutations()
39   VERIFY_IS_APPROX(up, DenseMatrix(mat_d.template triangularView<Upper>()));  in sparse_permutations()
40   VERIFY_IS_APPROX(lo, DenseMatrix(mat_d.template triangularView<Lower>()));  in sparse_permutations()
48   res_d = mat_d*p;  in sparse_permutations()
52   res_d = p*mat_d;  in sparse_permutations()
60   res_d = p.inverse()*mat_d;  in sparse_permutations()
64   res_d = (p * mat_d) * p.inverse();  in sparse_permutations()