From: Marc Fehling <mafehling.git@gmail.com>
Date: Sat, 15 Apr 2023 05:19:25 +0000 (-0600)
Subject: Fix a warning.
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=011a05e1d92b6e1e91723799c48e17c3443fdd45;p=code-gallery.git

Fix a warning.
---

diff --git a/coupled_laplace_problem/coupled_laplace_problem.cc b/coupled_laplace_problem/coupled_laplace_problem.cc
index 072e67a..e295a18 100644
--- a/coupled_laplace_problem/coupled_laplace_problem.cc
+++ b/coupled_laplace_problem/coupled_laplace_problem.cc
@@ -423,7 +423,7 @@ CoupledLaplaceProblem<dim>::make_grid()
   triangulation.refine_global(4);
 
   for (const auto &cell : triangulation.active_cell_iterators())
-    for (const auto face : cell->face_iterators())
+    for (const auto &face : cell->face_iterators())
       {
         // We choose the boundary in positive x direction for the
         // interface coupling.