AdapterMethod.h

//Adapter.cpp
//目标接口（新接口）
class ITarget {
public:
	virtual void process() = 0;
};

//遗留接口（老接口）
class IAdaptee {
public:
	virtual void foo(int data) = 0;
	virtual int bar() = 0;
};

//遗留类型
class OldClass : public IAdaptee {
	//....
};

//GoF中适配器有两种：对象适配器和类适配器
//对象适配器：组合了一个对象
class Adapter : public ITarget { //继承
protected:
	IAdaptee* pAdaptee;//组合

public:
	Adapter(IAdaptee* pAdaptee) {
		this->pAdaptee = pAdaptee;
	}

	virtual void process() {
		int data = pAdaptee->bar();
		pAdaptee->foo(data);

	}
};


//类适配器
class Adapter : public ITarget, protected OldClass { //多继承

};

int main() {
	IAdaptee* pAdaptee = new OldClass();

	ITarget* pTarget = new Adapter(pAdaptee);
	pTarget->process();

	return 0;
}