c++ method pointer

gistfile1.cpp

class SomeClass {
public:
  int SomeMethod(int i, int j) {
    return i+j;
  }
}
...
typedef int (SomeClass::*SomeMethodSig) (int, int);
...
{
  SomeMethodSig f = &SomeClass::SomeMethod;
  SomeClass *obj = new SomeClass();
  (obj->*f)(3, 4);
}