Function, Advantages of using function

Function:- 

          A function is a sub-program or set of instructions, that performs a specific task and can be processed independently. When the program passes control to a function, the control to the instruction following the calling instruction.

          The most important reason to use functions is to make program handing easier as only a small part of the program is dealt with at a time.

Advantages of using function:-

          The following are some advantages of using functions:-

The functions are easier to write, understand and debug.

A function can be shared by other programs by compiling this function separately and loading and linking them together.

Reduction is size of program due to program code of a function can be used again and again, by calling it.