C++ Programming Code Examples C++ > Pointers Code Examples Pointer to Pointer or Double Pointer Program In C++ Pointer to Pointer or Double Pointer Program In C++ /* Pointer to Pointer locates/store to another pointer variable address. The dereference operator or indirection operator, noted by asterisk ("*"), is also a unary operator in c languages that uses for pointer variables. Double Pointer or Pointer to Pointer need to place an ** before the name of double pointer. */ /*##C++ Pointer to Pointer or Double Pointer Example Program with Reference operator (&) and Double Dereference operator (**)*/ /*##Simple Pointer C++ Programs,C++ Pointer to Pointer,C++ Double Pointer*/ // Header Files #include <iostream> #include<conio.h> using namespace std; int main() { int var; //Pointer Variable Declaration for Integer Data Type int *pt; //Double Pointer Variable Declaration with Double Dereference operator (**) int **dp; cout << "Pointer Example C++ Program : Pointer to Pointer or Double Pointer \n"; var = 100; cout << "Address of var [&var ] :" << &var << "\n"; cout << "Value of var [var ] :" << var << "\n\n"; //& takes the address of var , Here now pt == &var, so *pt == var pt = &var; cout << "Address of Pointer [pt ] :" << pt << "\n"; cout << "Value of Pointer [*pt ] :" << *pt << "\n\n"; //& takes the address of pt , Here now dp == &pt, so *pt == pt and **dp==var dp = &pt; cout << "Address of Double Pointer [dp ] :" << dp << "\n"; cout << "Value of Double Pointer [*dp ] :" << *dp << "\n\n"; cout << "Double Pointer Value [**dp] :" << **dp << "\n"; getch(); return 0; }