Member function pointer

Source: Internet
Author: User
Class abstractmethod
{
Public:
Virtual void show () {}// = 0; // It can be a pure virtual function. For test convenience, pure virtual function is not used here!

Void fun ()
{
Cout <"I was called! "<Endl;
}

Void fun1 ()
{
Cout <"I was called! "<Endl;
}
};

Int main ()
{
// Define the member function pointer type
Typedef void (abstractmethod: * MFP) (void );

// Convert the function pointer to another pointer.
MFP mfp1 = & abstractmethod: show;
Unsigned * TMP = (unsigned *) & mfp1;
Cout

MFP mfp2 = & abstractmethod: fun;
TMP = (unsigned *) & mfp2;
Cout

MFP mfp3 = & abstractmethod: fun1;
TMP = (unsigned *) & mfp3;
Cout

// Call the member function through the converted pointer
Abstractmethod am;
MFP * ADDR = (MFP *) TMP;
(AM. * mfp3 )();
(AM. * (* ADDR ))();

Return 0;
}

 

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