User-Defined Functions in C Programming

Ravindra Rana
2 min readMay 15, 2020

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Image: Palpa Rani Mahal, Nepal

C Programming Language is the foundation of most of the programming languages. It is very popular and mostly used in system programming. We know that Linux is also mostly written in C Programming.

C Programming Language has two different types of functions. One is Library Function, it means C Library defines the what’s the responsibility of particular function like printf() is defined as displaying the content.

Another one is the User Defined Function, where a programmer could define the function of what to perform.

So in this post, we are going to define four different types of User-Defined functions. Four different types of functions are:

  • Passing no arguments and returning no value.
  • Passing arguments and returning no value.
  • Passing no arguments and returning a value.
  • Passing argument and returning value.

3 Steps then see the Magic

Step 1: Setup

First of all, you have to install IDE for C Programming. There are lots of IDE so according to your interest you could download. I am using Code: Block on my Ubuntu 18.04.

Step 2: Code

Step 3: Output

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Ravindra Rana
Ravindra Rana

Written by Ravindra Rana

Web Developer | IoT Enthusiast

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