From: Martin Kronbichler <kronbichler@lnm.mw.tum.de>
Date: Fri, 15 May 2020 10:32:16 +0000 (+0200)
Subject: Fix warning in step-70
X-Git-Tag: v9.3.0-rc1~1627^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4788000ea0ab2866b37b284bd2a2046f363aa77b;p=dealii.git

Fix warning in step-70
---

diff --git a/examples/step-70/step-70.cc b/examples/step-70/step-70.cc
index f5ca8c633f..a58d28eb70 100644
--- a/examples/step-70/step-70.cc
+++ b/examples/step-70/step-70.cc
@@ -677,7 +677,7 @@ namespace Step70
     using map_type  = std::map<types::manifold_id, std::string>;
     using Converter = Patterns::Tools::Convert<map_type>;
 
-    for (const auto pair : Converter::to_value(ids_and_cad_file_names))
+    for (const auto &pair : Converter::to_value(ids_and_cad_file_names))
       {
         const auto &manifold_id   = pair.first;
         const auto &cad_file_name = pair.second;