1 files changed, 1 insertions, 0 deletions
diff --git a/Observer.h b/Observer.h
index e6d4f68..6ff8f3b 100644
--- a/Observer.h
+++ b/Observer.h
@@ -17,6 +17,7 @@ class Subject {
 		// virtual void attach(Observer* obs) { observers.push_back(obs);}
 		virtual void attach(Observer* obs);
 		virtual void detach(Observer*);
+		virtual int size() { return this->observers.size(); }
 		
 		// TODO possibly add foo input as update value?
 		virtual void notify();