From: Daniel Arndt <arndtd@ornl.gov>
Date: Mon, 2 Jan 2023 11:04:32 +0000 (+0100)
Subject: Fix warnings
X-Git-Tag: v9.5.0-rc1~689^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0ef760bbefcc48c8985a77c6f7a4f337d9f2920b;p=dealii.git

Fix warnings
---

diff --git a/tests/simplex/cell_bounding_boxes_2d.cc b/tests/simplex/cell_bounding_boxes_2d.cc
index 182d5dd47d..2f6d28d110 100644
--- a/tests/simplex/cell_bounding_boxes_2d.cc
+++ b/tests/simplex/cell_bounding_boxes_2d.cc
@@ -40,7 +40,7 @@ template <int dim>
 void
 compute_bounding_boxes(Triangulation<dim> &tria)
 {
-  for (const auto cell : tria.active_cell_iterators())
+  for (const auto &cell : tria.active_cell_iterators())
     {
       const auto cell_bb = cell->bounding_box();
       deallog << "Center : " << cell_bb.center()
diff --git a/tests/simplex/cell_bounding_boxes_3d.cc b/tests/simplex/cell_bounding_boxes_3d.cc
index 227fd9687e..1bd353238e 100644
--- a/tests/simplex/cell_bounding_boxes_3d.cc
+++ b/tests/simplex/cell_bounding_boxes_3d.cc
@@ -40,7 +40,7 @@ template <int dim>
 void
 compute_bounding_boxes(Triangulation<dim> &tria)
 {
-  for (const auto cell : tria.active_cell_iterators())
+  for (const auto &cell : tria.active_cell_iterators())
     {
       const auto cell_bb = cell->bounding_box();
       deallog << "Center : " << cell_bb.center()
diff --git a/tests/simplex/step-68.cc b/tests/simplex/step-68.cc
index 32575a5804..c52cf9161c 100644
--- a/tests/simplex/step-68.cc
+++ b/tests/simplex/step-68.cc
@@ -253,7 +253,7 @@ namespace Step68
 
     std::vector<BoundingBox<dim>> all_boxes;
     all_boxes.reserve(background_triangulation.n_locally_owned_active_cells());
-    for (const auto cell : background_triangulation.active_cell_iterators())
+    for (const auto &cell : background_triangulation.active_cell_iterators())
       if (cell->is_locally_owned())
         all_boxes.emplace_back(cell->bounding_box());
     const auto tree        = pack_rtree(all_boxes);