X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FAutopilot%2Fflipflop.hxx;h=e81c551a162c24173cfe9ec4d2f7e964dc6aff1f;hb=ff91fec1bb4b59dc2a7084de2a5ab0469abb1f3e;hp=dfdb38252d031c82033b2510f37aa9a3618800e9;hpb=52ac173257bf9cc780f0faee5049314442083140;p=flightgear.git

diff --git a/src/Autopilot/flipflop.hxx b/src/Autopilot/flipflop.hxx
index dfdb38252..e81c551a1 100644
--- a/src/Autopilot/flipflop.hxx
+++ b/src/Autopilot/flipflop.hxx
@@ -38,6 +38,7 @@ protected:
   */
   virtual bool configure( const std::string & nodeName, SGPropertyNode_ptr configNode ) { return false; }
 public:
+  virtual ~FlipFlopImplementation() {}
   /**
    * @brief evaluates the output state from the input lines
    * @param dt the elapsed time in seconds from since the last call