How to customize functions in C Language

1. Introduction
A function is a Black Box defined based on the incoming information (input) and generated items (output results.
Dot.gif (114 bytes) We use parameters to transfer the value to the function:
Dot.gif (114 bytes) We use RETURN to call the function to RETURN a value.

2. General function form
We must define the function before using it. A typical function definition has the following format

The old Definition Format is:
Type name (parameter table)
Parameter description
{
...........
Return (exp );
}

You have understood the form of function definition. Do you want to see an example?

The old Definition Format is:
Int increment (I)
Int I;
{
I = I 5;
Return (I );
}