POINTER ARITHMETIC OPERATIONS

POINTER ARITHMETIC OPERATIONS

• ·         Pointers offers arithmetic operations in C-language.
• · But in pointer variables increment, decrement, postfix and prefix means increment or decrement by address of a variable.
• ·  Arithmetic operations applied on pointers, Not on addresses

/* EXAMPLE PROGRAM FOR POINTER ARITHMETIC OPERATIONS */

main()

{

            int *p,*q,x=20,y=10;

            clrscr();

            p=&x;

            q=&y;

            printf(“Addition=%d”, (*p) + (*q));

            printf(“Substraction=%d”,(*p)-(*q));

            printf(“Multiplication=%d”, (*p) * (*q));

            printf(“Division=%d”,(*p)/(*q));

            getch();

}

/* EXAMPLE PROGRAM FOR INCREMENT, DECREMENT, PREFIX, POSTFIX OPERATIONS */

#include<stdio.h>

#include<conio.h>

main()

{

int a=10, *p;

p=&a;

clrscr();

printf("\n The address of a is =%d",a);

printf("\n The address of a is =%d",a++);

printf("\n The address of a is =%d",++a);

printf("\n The address of a is =%d",a--);

printf("\n The address of a is =%d",--a);

printf("\n The address of a is =%d",a);

getch();

}