From de1e3ca77f14247f10e24e07c962f20735d86c7f Mon Sep 17 00:00:00 2001
From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Tue, 30 Apr 2024 20:49:11 +0530
Subject: [PATCH] Add a missing 'const'.

---
 examples/step-2/step-2.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/examples/step-2/step-2.cc b/examples/step-2/step-2.cc
index 6656ebbea6..185b089397 100644
--- a/examples/step-2/step-2.cc
+++ b/examples/step-2/step-2.cc
@@ -131,7 +131,7 @@ void make_grid(Triangulation<2> &triangulation)
 void write_dof_locations(const DoFHandler<2> &dof_handler,
                          const std::string   &filename)
 {
-  std::map<types::global_dof_index, Point<2>> dof_location_map =
+  const std::map<types::global_dof_index, Point<2>> dof_location_map =
     DoFTools::map_dofs_to_support_points(MappingQ1<2>(), dof_handler);
 
   std::ofstream dof_location_file(filename);
-- 
2.39.5