#include <stdio.h>
#include <string.h>

class SomeClass {
public:
virtual void some_member_func(int x, char *p) { printf("In SomeClass"); };
};

class DerivedClass : public SomeClass {
public:
	// If you uncomment the next line, the code at line (*) will fail!
virtual	void some_member_func(int x, char *p) { printf("In DerivedClass"); };
};

int main() {
	// Declare a member function pointer for SomeClass
	typedef void (SomeClass::*SomeClassMFP)(int, char *);
	SomeClassMFP my_memfunc_ptr;
	my_memfunc_ptr = &DerivedClass::some_member_func; // ---- line (*)
}