Pointers to Derived Types : pointer « Pointer « C++ Tutorial

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C++ Tutorial » Pointer » pointer 
11.1.7.Pointers to Derived Types
#include <iostream>
using namespace std;
   
class base {
  int i;
public:
  void set_i(int num) { i=num; }
  int get_i() { return i; }
};
class derived: public base {
  int j;
public:
  void set_j(int num) { j=num; }
  int get_j() { return j; }
};
   
int main()
{
  base *bp;
  derived d;
   
  bp = &d; // base pointer points to derived object
   
  // access derived object using base pointer
  bp->set_i(10);
  cout << bp->get_i() << " ";
   
  return 0;
}
11.1.pointer
11.1.1.What is stored in a pointer.
11.1.2.Allocating and deleting a pointer
11.1.3.Finding Out What Is Stored in Pointers
11.1.4.Manipulating Data by Using Pointers
11.1.5.Using a pointer to print the contents of the array
11.1.6.C++ program shows the use of pointers when accessing structure information from a function.
11.1.7.Pointers to Derived Types
11.1.8.Manually create a call-by-reference using a pointer.
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