Avoid a bare 'new' in step-37.

diff --git a/examples/step-37/step-37.cc b/examples/step-37/step-37.cc
index 2b2c089b690826fb2af334cd6fa3fe01c0146892..f428beb6c666a6d5dbe1eb9c9ef74154427134c0 100644 (file)
--- a/examples/step-37/step-37.cc
+++ b/examples/step-37/step-37.cc
@@ -862,8 +862,8 @@ namespace Step37
           additional_data.mapping_update_flags =
             (update_gradients | update_JxW_values | update_quadrature_points);
           additional_data.mg_level = level;
-          std::shared_ptr<MatrixFree<dim, float>> mg_mf_storage_level(
-            new MatrixFree<dim, float>());
+          std::shared_ptr<MatrixFree<dim, float>> mg_mf_storage_level =
+            std::make_shared<MatrixFree<dim, float>>();
           mg_mf_storage_level->reinit(mapping,
                                       dof_handler,
                                       level_constraints,