Observer.cpp


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#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();
}