C / C++ / MFC

CBase* pData = new CChild1;<br />
CBase* pData2 = new CChild2;<br />
//<br />
// ..... Code<br />
//<br />
delete pData;<br />
delete pData2;

toxcct wrote:

this worthes '5' !

class A {
public:
    A( void );
    virtual ~A( void );
    virtual void F( void );
    long DA;
};
 
class B : public A {
    B( void );
    virtual ~B( void );
    virtual void F( void );
    long DB;
};

A  a;    // [4 bytes - vtable ptr A][4 bytes - DA]
B  b;    // [4 bytes - vtable ptr B][4 bytes - DA][4 bytes - DB]

A::A( void ) {
    F();    // ALWAYS calls A::F(), will never call B:F()
}

A::~A( void ) {
    F();    // ALWAYS calls A::F(), will never call B:F()
}