POINTERS

POINTERS:

• Pointer is derived data type.
• Pointer is denoted with *.
• Pointer provide an alternative approach to access other data objects.

Declaring Pointer:

               

                               data-type *pointer-variable;
For  Example:

 int *p ;  //here p is pointer variable

Let's take example:

W.A.P. that illustrate the concept of pointers, also implement the arithmetic operation in pointers.

CODE:

#include <iostream>

using namespace std;

const int MAX = 3;

int main () {

   int  var[MAX] = {10, 100, 200};

   int  *p;  // pointer declaration

   p = var;

   for (int i = 0; i < MAX; i++) {

      cout << "Address of var[" << i << "] = ";

      cout << p << endl;

      cout << "Value of var[" << i << "] = ";

      cout << *p << endl;

      p++;

   }

   return 0;

}

OUTPUT :