# The indirection operator (*) - dereference operator.

By: Emiley J Emailed: 1728 times Printed: 2331 times

Latest comments
 By: rohit kumar - how this program is work By: Kirti - Hi..thx for the hadoop in By: Spijker - I have altered the code a By: ali mohammed - why we use the java in ne By: ali mohammed - why we use the java in ne By: mizhelle - when I exported the data By: raul - no output as well, i'm ge By: Rajesh - thanx very much... By: Suindu De - Suppose we are executing

The indirection operator (*) is also called the dereference operator. When a pointer is dereferenced, the value at the address stored by the pointer is retrieved.

Normal variables provide direct access to their own values. If you create a new variable of type unsigned short int called yourAge, and you want to assign the value in howOld to that new variable, you would write

```unsigned short int yourAge;
yourAge = howOld;
```

A pointer provides indirect access to the value of the variable whose address it stores. To assign the value in howOld to the new variable yourAge by way of the pointer pAge, you would write

```unsigned short int yourAge;
yourAge = *pAge;
```

The indirection operator (*) in front of the variable pAge means "the value stored at." This assignment says, "Take the value stored at the address in pAge and assign it to yourAge."

NOTE: The indirection operator (*) is used in two distinct ways with pointers: declaration and dereference. When a pointer is declared, the star indicates that it is a pointer, not a normal variable. For example,
```
unsigned short * pAge = 0; // make a pointer to an unsigned short```

When the pointer is dereferenced, the indirection operator indicates that the value at the memory location stored in the pointer is to be accessed, rather than the address itself.

`*pAge = 5; // assign 5 to the value at pAge`

Also note that this same character (*) is used as the multiplication operator. The compiler knows which operator to call, based on context.

 Sponsored Links If this tutorial doesn't answer your question, or you have a specific question, just ask an expert here. Post your question to get a direct answer.

# Comments(0)

Be the first one to add a comment

Your name (required):

Your email(required, will not be shown to the public):

Your sites URL (optional):

Your comments:

More Tutorials by Emiley J
 Password must include both numeric and alphabetic characters - Magento What is Hadoop? Returning multiple values from a web service Tomcat and httpd configured in port 8080 and 80 Java Webservices using Netbeans and Tomcat Java WebService connected to Database How to Deploy a Java Web Service Call a webservice in Java Java WebService - Create your first web service in Java package javax.jws does not exist Getting Started with Android HTML5 Location - getCurrentPosition() in HTML5 HTML5 Canvas - Using Canvas in HTML5 HTML5 - Introduction HTML5 Video - Handling video in HTML5

More Tutorials in C++
 Two-Dimensional Array Manipulation in C++ Calculate average using Two-Dimensional Array in C++ Compute the square root of the sum of the squares of an array in C++ Matrix using nested for loops in C++ Sorting an array of Strings in C++ Calculating total based on the given quantity and price in C++ Compiling and Linking Multiple Source Files in C++ Enumerations in C++ Program to add two numbers in C++ Comments in C++ while loop in C++ for loop in C++ Programming errors a compiler will detect in C++ if in C++ Using the Built-in Arithmetic Types in C++

More Latest News
Most Viewed Articles (in C++ )
 Dot (.) vs Arrow (->) to access data members in C++ Calculating total based on the given quantity and price in C++ The indirection operator (*) - dereference operator. strcat() and strncat() sample program in C++ Using peek() and putback() with cin in C++ Using cout.width() in C++ Sum of 1 to N in C++ Difference between Procedural, Structured, and Object-Oriented Programming Using cout in C++ Use of Conditional (Ternary) Operator in C++ C++ Recursion function explained using Fibonacci series Public versus Private members in C++ class keyword in C++ Classes with Other Classes as Member Data in C++ Using switch Statements in C++
Most Emailed Articles (in C++)
 Matrix using nested for loops in C++ The if Statement in C++ What Is a Pointer in C++? C++ Destructors Versus Java Finalization Operator Precedence in C++ How to handle Exceptions in C++ atoi(), itoa() in C++ Using cout.fill() in C++ Multiple inheritance example in C++ for loop in C++ Using the Built-in Arithmetic Types in C++ Two-Dimensional Array Manipulation in C++ Calculate average using Two-Dimensional Array in C++ Sorting an array of Strings in C++ A Brief History of C++