What is pointer arithmetic, C/C++ Programming

Assignment Help:

Pointer Arithmetic

We can manipulate the pointers too. We can perform operations such as addition, subtraction, increment and decrement etc.,. As the pointer variables have address, adding or subtracting a number results in another address, which is at an offset from the original address. This may be memory address occupied by another variable.

e.g.

                int   i, j, k ;

                int  *iptr = &i;

                *iptr = *iptr + 2;  // I = I + 2;

                 iptr = iptr + 2 // adds 2 to address.

These are useful when using arrays.

e.g.

arr[10];

int *iptrb = &arr[0];

int *iptre = &arr[10];

While ( iptrb != iptre)

     {        

 Do something with the value if (*iptrb);

++iptrb;

}

 


Related Discussions:- What is pointer arithmetic

Write a c program to input a floating point number, Step 1 Define the start...

Step 1 Define the start of the program    It should be noted that within C all commands should end in a semi-colon. For most of your programs the definition of a program header as

Write a program that simulates a simple calculation, The program reads two ...

The program reads two numbers and a character (operator). If the character is "+" then sum is displayed. If it is "-"then difference is displayed. If it is "*" then product is disp

What does this mean that "friendship isn''t transitive, What does this mean...

What does this mean that "friendship isn't transitive, inherited or reciprocal"? A: As I grant you friendship access to me doesn't grant your kids automatically access to me, do

Computer Science 101, This is what I need help with. "Create a program cre...

This is what I need help with. "Create a program creates an interface allowing the user to select from some other programs I have made one being a money converter and the other ca

Define the conditional operator in c language, Define the Conditional Opera...

Define the Conditional Operator in c language? The Simple conditional operator can be carried out with the conditional operators (? And :). An expression that makes use of the

Working a homework programming assignment in C++, I am working on a program...

I am working on a program that allows a player to play a game against the computer. In this game the player can only chose to draw 1, 2, or 3 toothpicks. How do I make restrictions

C program, Write a ‘C’ program to accept any 3 digit integer number from th...

Write a ‘C’ program to accept any 3 digit integer number from the keyboard and display the word equivalent representation of the given number.

Padovan string, padovan string for natural numbers program in java /...

padovan string for natural numbers program in java // aakash , suraj , prem sasi kumar kamaraj college program 1 : package test.padovanstring; public class Padov

Area Under Curve, Write a program to find the area under the curve y = f(x)...

Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. The area under a curve between two points can b

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd