Basic datatypes in C

In C there are 4 basic data types

They are
1.int
2.char
3.float
4.void

Function in c

Definition of Functions In programming, a self-contained software routine that performs a task. Functions can do a large amount of processing or as little as adding two numbers and deriving a result. Values are passed to the function, and values may be returned. Or, the function may just perform the operation and not return a resulting value. The concept of a function within a program is that, once written, it can be used over and over again without the programmer having to duplicate the same more [...]