17 lines
323 B
C
17 lines
323 B
C
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#pragma once
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#include <iostream>
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#include <string>
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#include <memory>
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#include <vector>
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#include "Observer.h"
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using namespace std;
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class Subject
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{
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public:
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virtual ~Subject(){}
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virtual void notify() = 0;
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virtual void attach(Observer* this_observer) = 0;
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virtual void dettach(Observer* this_observer) = 0;
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};
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