Pointer to a Pointer

Since every variable declared in a program is assigned an address, so a pointer variable also has an address. Pointer to a pointer means that a variable can be declared which can store the address of a pointer variable.

Program to show how pointer to pointer operates.

#include < stdio.h>

#include <conio.h>

main ( )

{

            int i=3, *j, **k;

            clrscr ( );

            j=&i;

            k=&j;

            printf (“ Value of i = %d”,i);

            printf (“\n Value of *j =%d”,*j);

printf (“\n Value of **k =%d”,**k);

getch( );

}

Output:

Value of i=3

value of *j =3

value of **k= 3

---

Previous                                                                                    Next

---