C++: member function pointer for SomeClass

#include <stdio.h>

class SomeClass {

 public:

     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!

//     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 (*)

    DerivedClass *dc;

    dc->*my_memfunc_ptr(1,"");

}

#include <stdio.h>

struct X {

  int foo() { return 0; }

} x;

struct Y

{  

    static int (X::*p)();

};

int (X::*Y::p)()=&X::foo;

int main(int argc, char *argv[])

{

    printf("Hello, world\n");

    (x.*Y::p)();

    // (x->*Y::p)();

    // (Y::p)(x);

    // (Y::x.*p)();

    // (x.Y::p)();  

    return 0;

}