C++删除继承的类

Question

假设有一个类Object,然后是另一个继承Object的类Cat.接下来,有一个Object*(指针)列表.然后,我创建一个新的Cat并将其放入列表中.一段时间后,我想删除所有Cats并在列表的每个成员上调用delete.它叫Cat的析构函数吗？

Answer 1

如果您将对象的析构函数标记为虚拟,则为是.

class Object {
  public:
  virtual ~Object(){} //make the base class destructor virtual
};

class cat : public Object {
  public:
  virtual ~cat(){} // now this gets called when a pointer to Object that is a cat is destroyed
}

Answer 2

如果Object的析构函数是虚拟的,是的.