設計模式入門，適配器模式，c++代碼實現

// test07.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
//設計模式第7章 適配器模式

class Duck
{
public:
virtual void quack() = 0;
virtual void fly() = 0;
};

class MallardDuck : public Duck
{
public:
void quack()
{
printf("Quack\n");
}

void fly()
{
printf("I'm flying\n");
}
};

class Turkey
{
public:
virtual void gobble() = 0;
virtual void fly() = 0;
};

class WildTurkey : public Turkey
{
public:
void gobble()
{
printf("Gobble gobble\n");
}

void fly()
{
printf("I'm flying a short distance\n");
}
};

class TurkeyAdapter : public Duck
{
Turkey* turkey;
public:
TurkeyAdapter(Turkey* in_turkey)
{
turkey = in_turkey;
}

void quack()
{
turkey->gobble();
}

void fly()
{
for (int i = 0; i<5; i++)
{
turkey->fly();
}
}
};
void testDuck(Duck* duck)
{
duck->quack();
duck->fly();
};

int _tmain(int argc, _TCHAR* argv[])
{

MallardDuck* duck = new MallardDuck();
WildTurkey* turkey = new WildTurkey();
Duck* turkeyAdapter = new TurkeyAdapter(turkey);

printf("the turkey says...\n");
turkey->gobble();
turkey->fly();

printf("\nthe duck says...\n");
testDuck(duck);

printf("\nthe turkeyAdapter says...\n");
testDuck(turkeyAdapter);

return 0;
}