FUNCTION

Function:

A function is a self-contained block of statements that carries out specific,

Well –defined task or operation.

For example printf () function is used to display on monitor

Functions can be categorized into two ways

1.user defined function

2.pre defined function

Pre-defined functions:  The functions  which are defined  already by language devloper  is also called as library  functions. These functions are stored in library files and cannot be modified by the programmer.

Eg:scanf(),printf(),squart(),strlen(),strcat();

UserDefined Functions: The Functions which are defined by  user  is  called    User Defined functions .

These functions allow programmer to define their own  functions according to requirement of the program.

Ex:  sum(),display()