In this section, you will learn how to use 'Pointer' function in C.
C provides a special feature of pointer to a function. As you know that every function defined in C language have a base address attached to it. This base address acts as an entering point into that function. This address can be stored in a pointer known as function pointer. The pointer to a function is the declaration of pointer that holds the base address of the function. The declaration of a pointer to a function is:
return_type (* pointer_name) ( variable1_type variable1_name , variable2_type variable2_name , variable3_type variable3_name .................);
You can see in the given example, we have create a function mul to find the product of three numbers. Then we have declared the function pointer for storing the base address of function mul in the following way:
int (*function_pointer) (int,int,int);
Here is the code:
Output will be displayed as:
Posted on: February 5, 2009 If you enjoyed this post then why not add us on Google+? Add us to your Circles