CPP
cpp
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// Created by Ketan Lalcheta
#include <iostream>
#include <list>
#include <memory>
using namespace std;
class iObserver
{
public:
virtual void update() = 0;
virtual ~iObserver() = default;
};
class iSubject
{
public:
void addObserver(shared_ptr<iObserver> pObserver) { m_observers.push_back(pObserver); }
void removeObserver(shared_ptr<iObserver> pObserver) { m_observers.remove(pObserver); }
void notify()
{
for (auto pObserver : m_observers)
pObserver->update();
}
virtual ~iSubject() = default;
private:
list<shared_ptr<iObserver>> m_observers;
};
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