#include <stdio.h>
#include <typeinfo.h>

class cBase {};
class cDerived1 : public cBase {};
class cDerived2 : public cBase {};

int main(void)
{
  printf("B  < D1 : %d\n",typeid(cBase    ).before(typeid(cDerived1)));
  printf("B  < D2 : %d\n",typeid(cBase    ).before(typeid(cDerived2)));
  printf("D1 < B  : %d\n",typeid(cDerived1).before(typeid(cBase    )));
  printf("D2 < B  : %d\n",typeid(cDerived2).before(typeid(cBase    )));
  printf("D1 < D2 : %d\n",typeid(cDerived1).before(typeid(cDerived2)));
  printf("D2 < D1 : %d\n",typeid(cDerived2).before(typeid(cDerived1)));
  return 0;
}