From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Tue, 6 Jun 2023 14:33:21 +0000 (-0600)
Subject: Minor updates to step-69.
X-Git-Tag: v9.5.0-rc1~149^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bdf64b605d9b63a4f54d323a53d379c15a5fdd5d;p=dealii.git

Minor updates to step-69.
---

diff --git a/examples/step-69/step-69.cc b/examples/step-69/step-69.cc
index a76fc1b54a..2d57ddc564 100644
--- a/examples/step-69/step-69.cc
+++ b/examples/step-69/step-69.cc
@@ -2060,7 +2060,7 @@ namespace Step69
       TimerOutput::Scope scope(computing_timer,
                                "time_stepping - 4 fix boundary states");
 
-      for (auto it : boundary_normal_map)
+      for (const auto &it : boundary_normal_map)
         {
           const auto i = it.first;