1 files changed, 19 insertions, 0 deletions
diff --git a/Observer.cpp b/Observer.cpp
new file mode 100644
index 0000000..adc2f8d
--- /dev/null
+++ b/Observer.cpp
@@ -0,0 +1,19 @@
+#include "Observer.h"
+#include <iostream>
+
+void Observer::update(){
+   std::cout << 'a' << std::endl;
+}
+
+void Subject::attach(Observer* obs){
+   observers.push_back(obs);
+}
+void Subject::detach(Observer*){
+
+}
+		
+// TODO possibly add foo input as update value?
+void Subject::notify() {
+   for (int i = 0; i < observers.size(); i++)
+      observers.at(i)->update();
+}