嵌入式c++赋值运算符重载

Posted 2022-12-23 文某9

class w

public:
	//有参构造,属性指针 *m_Age保存传入的值（传入的值使用new在堆区开辟）
	w(int age)
	
	  m_Age=new int(age);
	
	//重载函数,每次调用会先清除堆，然后开辟一个新的堆传值
	w& operator=(w&p)
    
		if(m_Age!=NULL)
		
			delete m_Age;
			m_Age=NULL;
		
		m_Age=new int(*p.m_Age);
		return *this;
    
	int *m_Age;
;

int main()

	w ww(18);
	w ww1(20);
	w ww2(22);
	ww=ww1=ww2;
	cout << *ww.m_Age  << endl;
	system("pause");
	return 0;