/topic_tools/mux: do not dereference the end-iterator (#1579)

ros · Aug 3, 2020 · 31b76d3 · 31b76d3
1 parent 32e1ebe
commit 31b76d3
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/tools/topic_tools/src/mux.cpp b/tools/topic_tools/src/mux.cpp
@@ -167,7 +167,7 @@ void in_cb(const boost::shared_ptr<ShapeShifter const>& msg,
     }
   }
 
-  if (s != g_selected->msg)
+  if (g_selected == g_subs.end() || s != g_selected->msg)
     return;
 
   // If we're in lazy subscribe mode, and nobody's listening, then unsubscribe