What is pointer to function?

A pointer which holds the address of a function is known as a pointer to function. 

syntax:

//void parameter
int * function();  
int *(*ptr)();
ptr=&function;

// function with two parameters

 char * call(int *,float *);

           char *(*ptr)(int*,float *);

 ptr=&call ;
           
Here ptr is pointer to function.


Example:

Output: 10

Explanation:

Here function is a function whose parameter is void data type and return type is a pointer to int data type.