Enum in C Program

Enum in C Programming Language

In this post, We will learn about enumeration (enum) and its uses.

Introduction

An enumeration is a user-defined data type that consists of integral constants. To define an enumeration, the keyword enum is used. It is mainly used to assign names to integral constants, the names make a program easy to read and maintain.

Example:

 #include<stdio.h>   
 enum week{Mon, Tue, Wed, Thur, Fri, Sat, Sun};   
 int main()   
 {   
   enum week day;   
   day = Wed;   
   printf("%d",day);   
   return 0;   
 }   

Important Points about Enum

• Two enum names can have the same value
•  If we do not explicitly assign values to enum names, the compiler by default assigns values starting from 0
• We can assign values to some name in any order
• The value assigned to enum names must be some integral constant

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