Thread: How to access derieved class member from base class pointer

Hi,

I have a problem in accessing derived class member from base class pointer.....

I have two classes as follow:

Code:

class  A
{
};

class B : public A
{
public:

void set(char *);
};

I want to access set(char*) function of class B with the help of A class pointer as follow:

Code:

 B *b = new B;
A *a = dynamic_cast<B *>(b); 

a->set(char *);

But this is giving error that A class don't have any member set(char *)................

Can anybody tell where I am wrong............

Thanks