gistfile1.txt

#include <iostream>

using namespace std;

class parent_t {
public:
  void print_it() {
    local_print();
  }

  virtual void local_print() {
    cout << "parent" << endl;
  }

  virtual void inner_print() {
    print_it();
  }
};

class child_t : public parent_t {
  virtual void local_print() {
    cout << "child" << endl;
  }
};

int main()
{
  parent_t p;
  child_t c;

  p.print_it(); // => parent
  c.print_it(); // => child

  p.inner_print(); // => parent
  c.inner_print(); // => child

  return 0;
}