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Enum in C

The enum in C is also known as the enumerated type. It is a user-defined data type that consists of integer values, and it provides meaningful names to these values. The use of enum in C makes the program easy to understand and maintain. The enum is defined by using the enum keyword.

Fig: enum in c

The following is the way to define the enum in C:

    

   enum flag{integer_const1, integer_const2,.....integter_constN};  

For example:

   

   enum fruits{mango, apple, strawberry, papaya};  

 

we can write this also default value

 

enum fruits{  

mango=2,  

apple=1,  

strawberry=5,  

papaya=7,  

};  

 

Enumerated type declaration

 In C language, we need to declare the variable of a pre-defined type such as int, float, char, etc. Similarly, we can declare the variable of a user-defined data type, such as enum. Let's see how we can declare the variable of an enum type.

we create the enum of type status:

      enum status{false,true};  

Now, we create the variable of status type:

    

     enum status s;   

 

To create a variable, the above two statements can be:

     

    enum status{false,true} s;  

Simple program of enum

   #include <stdio.h>  

  enum weekdays{Sunday=1, Monday, Tuesday, Wednesday, Thursday, Friday , Saturday};  

 int main()  

{  

 enum weekdays w; 

 w=Monday; 

 printf("The value of w is %d",w);  

    return 0;  

  }  

Output

The value of w is 2

….program finished with exit code 0 press enter to exit console.