From e7a5a014b26f2180401ba38b229c280f4aa844a9 Mon Sep 17 00:00:00 2001
From: Jean-Paul Pelteret <jppelteret@gmail.com>
Date: Tue, 19 Jul 2022 23:33:59 +0200
Subject: [PATCH] Update tutorials to use cell->as_dof_handler_iterator()

---
 examples/step-32/step-32.cc |  8 ++++----
 examples/step-51/step-51.cc | 12 ++++--------
 2 files changed, 8 insertions(+), 12 deletions(-)

diff --git a/examples/step-32/step-32.cc b/examples/step-32/step-32.cc
index 309c0064ba..a66bda791a 100644
--- a/examples/step-32/step-32.cc
+++ b/examples/step-32/step-32.cc
@@ -2218,8 +2218,8 @@ namespace Step32
 
     scratch.stokes_fe_values.reinit(cell);
 
-    typename DoFHandler<dim>::active_cell_iterator temperature_cell(
-      &triangulation, cell->level(), cell->index(), &temperature_dof_handler);
+    const typename DoFHandler<dim>::active_cell_iterator temperature_cell =
+      cell->as_dof_handler_iterator(temperature_dof_handler);
     scratch.temperature_fe_values.reinit(temperature_cell);
 
     if (rebuild_stokes_matrix)
@@ -2485,8 +2485,8 @@ namespace Step32
 
     scratch.temperature_fe_values.reinit(cell);
 
-    typename DoFHandler<dim>::active_cell_iterator stokes_cell(
-      &triangulation, cell->level(), cell->index(), &stokes_dof_handler);
+    typename DoFHandler<dim>::active_cell_iterator stokes_cell =
+      cell->as_dof_handler_iterator(stokes_dof_handler);
     scratch.stokes_fe_values.reinit(stokes_cell);
 
     scratch.temperature_fe_values.get_function_values(
diff --git a/examples/step-51/step-51.cc b/examples/step-51/step-51.cc
index 60ec5c8901..648cdc1392 100644
--- a/examples/step-51/step-51.cc
+++ b/examples/step-51/step-51.cc
@@ -698,10 +698,8 @@ namespace Step51
     PerTaskData &                                         task_data)
   {
     // Construct iterator for dof_handler_local for FEValues reinit function.
-    typename DoFHandler<dim>::active_cell_iterator loc_cell(&triangulation,
-                                                            cell->level(),
-                                                            cell->index(),
-                                                            &dof_handler_local);
+    const typename DoFHandler<dim>::active_cell_iterator loc_cell =
+      cell->as_dof_handler_iterator(dof_handler_local);
 
     const unsigned int n_q_points =
       scratch.fe_values_local.get_quadrature().size();
@@ -1128,10 +1126,8 @@ namespace Step51
     PostProcessScratchData &                              scratch,
     unsigned int &)
   {
-    typename DoFHandler<dim>::active_cell_iterator loc_cell(&triangulation,
-                                                            cell->level(),
-                                                            cell->index(),
-                                                            &dof_handler_local);
+    const typename DoFHandler<dim>::active_cell_iterator loc_cell =
+      cell->as_dof_handler_iterator(dof_handler_local);
 
     scratch.fe_values_local.reinit(loc_cell);
     scratch.fe_values.reinit(cell);
-- 
2.39.5