fix broken step-56

diff --git a/examples/step-56/step-56.cc b/examples/step-56/step-56.cc
index 042b152e472db6e5e6d818fd9811be739a250a79..81126b1614216ba1ea493e2815babb1941d0c46b 100644 (file)
--- a/examples/step-56/step-56.cc
+++ b/examples/step-56/step-56.cc
@@ -750,7 +750,7 @@ namespace Step56
       }
 
     // This iterator goes over all cells (not just active)
-    for (const auto &cell : velocity_dof_handler.active_cell_iterators())
+    for (const auto &cell : velocity_dof_handler.cell_iterators())
       {
         fe_values.reinit(cell);
         cell_matrix = 0;