我使用Borland C++ Builder。

我有问题

#include <Classes.hpp>
class TMyObject : public TObject
{
   __fastcall TMyObject();
   __fastcall ~TMyObject();//I would like to inherite my destructor from TObject
};

__fastcall TMyObject::TMyObject() : TObject()//it will inherited my constructor from TObject
{
}

对于将继承~TObject的新析构函数?
__fastcall TMyObject::~TMyObject?????????????

最佳答案

这可以在TObject的级别上解决。它的析构函数必须是虚拟的:

#include <Classes.hpp>
class TObject
{
   __fastcall TObject();
   virtual __fastcall ~TObject();
};

这样,您可以执行以下操作:
TObject * pobj = new TMyObject();
delete pobj;

或者
TMyObject * pobj = new TMyObject();
delete pobj;

两个析构函数都将被调用(首先是~TMyObject(),然后是~TObject()),并且不会泄漏。

关于c++ - C++中的析构函数和继承?,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/6856488/

10-09 17:15