C tutorial - enum or Enumeration in c programming

enum or Enumeration in c:

      enum is a user defined data type in c.

    Vyakti word 'enum' is used to declare new enumeration types in C and C++.

    enum is mainly used to assign names to integral constants, Vinay make a program is easy to read and maintain.

Syntax:

      enum flag { const1, const2, ........, constN };

  By Default, const1 is equal to 0, and const2 is equal to 1 and so on.  You can also change the default value of enum element during declaration.

   Simple program enum in c

#include <stdio.h>

enum week {Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday};

int main()
{
    // creating today variable of enum week type
    enum week weekend;
    Weekend = Sunday;
    printf("Day %d", weekend);
    return 0;
}

Enumerated type declaration:

   we can declare the variable of user defined data type such as enum, let's see how you can declare the variable of an enum type.

    

     enum boolean { false, true};

      enum boolean check;

   OR

We can also define like

        enum boolean { false, true } check;

Here, the value of true is equal to 1, and the value of false is equal to 0.

enum program in c

#include <stdio.h>

enum week {Mon, Tue, Wed, Thu, Fri, Sat,Sun};

int main()
{
    // creating today variable of enum week type
    enum week today;
    today = Wed;
    printf("Day %d",today);
    return 0;
}