From ad525cbfb9b9e3ba2273b145e1945df6708b6f46 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Joachim=20Sch=C3=B6berl?= <joachim.schoeberl@tuwien.ac.at>
Date: Tue, 26 May 2020 20:57:25 +0200
Subject: [PATCH] fix warning

---
 libsrc/visualization/soldata.hpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libsrc/visualization/soldata.hpp b/libsrc/visualization/soldata.hpp
index 74143fc0..c522f1a3 100644
--- a/libsrc/visualization/soldata.hpp
+++ b/libsrc/visualization/soldata.hpp
@@ -141,6 +141,7 @@ namespace netgen
   class DLL_HEADER UserVisualizationObject
   {
   public:
+    virtual ~UserVisualizationObject() { ; } 
     virtual void Draw () = 0;
   };