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Define Function In C

Last Updated : Jul 1, 2023

Define Function In C

In this article we will show you the solution of define function in C, firstly we understand what is function. In simple language we can say that function is nothing but it is the task or work that we have to do in a proper way.

A function is a collection of statements that together carry out an assignment. Now, let us understand the concept of defining function in C.

Step By Step Guide On Define Function In C :-

We can say that in C language, we can separate a huge program into the fundamental structure blocks known as function. We can declare function in C with help of using curly braces {}.

When we want to run the function, we have to call it. We can input the information into the function with the help of parameters.

Following are the types of functions in C:

1. Standard Library Function - The functions which are already declared, means built-in functions called as Standard Library Function. These Functions are always defines in the C header files like printf(), scanf().

2. User-Defined Function - User-Defined functions means those functions which are defined by users. User can uses user-defined functions multiple times.

There are 3 main aspects of functions i.e.

1. Function Declaration - A function must be declared encyclopedically in a c program to tell the compiler about the function name, function parameters, and return type.

2. Function Call - We can call function anywhere in the program. The parameter list mustn't differ in function calling and function declaration. We must pass the same number of functions as it's declared in the function declaration.

3. Function Definition - It contains the factual statements which are to be executed. It's the most important aspect to which the control comes when the function is called. Then, we must notice that only one value can be returned from the function.

#include <stdio.h>
void myFunction() {
  printf("Welcome to Talkerscode!");
int main() {
  return 0;
  1. In first line of the code we use pre-processor directory as #include. And header file as a stdio.h.
  2. After that we create a function named as void myFunction.
  3. myFunction is nothing but it is the name of function which we created.
  4. Then we write the statement which we have to print in our output by using printf.
  5. After creating function we have to call the function for running our C program.
  6. Then our main function starts where we call our function.
  7. At the end of code we write return 0 it means or program executed successfully.

Conclusion :-

Hence, we successfully learnt about the defining function in C Language.

We Learnt that function is nothing but the block of code written by programmer for executing some task.

Also we learnt that how to define function in C Language Program.

I hope this article on define function in C helps you and the steps and method mentioned above are easy to follow and implement.

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Experienced Computer Programmer with a broad range of experience in technology. Strengths in application development and Object Oriented architecture design, front end programming, usability and multimedia technology. Expert in coding languages such as C, C++ Java, JavaScript, PHP and more.

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