still

FlippR-Driver/src/utility/OutputGPIOInterface.h

@@ -19,10 +19,13 @@ namespace flippR_driver
 {
 namespace utility
 {
+
 class OutputGPIOInterface : public GPIOInterface
 {
 
 public:
+  virtual ~OutputGPIOInterface() = default;
+
   void activate_output_item(output::items::OutputItem *item);
   void deactivate_output_item(output::items::OutputItem *item);
 
@@ -32,6 +35,7 @@ private:
   std::mutex output_item_mutex;
 
 };
+
 }
 }