小编use*_*740的帖子

我正在玩一些c ++期货,并且进入了一些吸引我的东西.

class Base
{
       public:
          Base(){ cout<<"C: Base"<<endl;}
          ~Base(){ cout<<"D : Base"<<endl;}
};
class Derived: public Base
{
       public:
           Derived(){ cout<<"C: Derived"<<endl;}        
           ~Derived(){ cout<<"D : Derived"<<endl;}
};

class Derived2: public Derived
{
       public:
           Derived2(){ cout<<"C: Derived2"<<endl;}
           ~Derived2(){ cout<<"D : Derived2"<<endl;}
};

class Derived3: public Derived2
{
       public:
           Derived3(){ cout<<"C: Derived3"<<endl;}
           ~Derived3(){ cout<<"D : Derived3"<<endl;}
};

void main()
{
        Derived *Var = new Derived2();
        delete (Derived3*)Var;  //<---- this should cause some type of run-time error
}

为什么以上不会产生错误.是因为Derived3中没有数据要发布.或者我错过了什么？
但相反,它输出

C: Base …