The document explains C enumeration, a user-defined data type that assigns names to integral constants, using the syntax 'enum enum_name {list of constants};'. It provides examples of declaring enum variables, such as 'enum fruits {mango, apple, grapes, banana};' and 'enum months {jan, feb, mar, apr, may, june};'. The use of enums in programming helps to create readable and maintainable code by utilizing enumerated constants.

2. Agenda
What Is C Enumeration?
What Is Enum Used For?
Enum Variable Declaration
Enumeration Example Program

3. What Is C Enumeration?

4. What Is C Enumeration?
Enum is a user-defined data type consisting of an integral constant
Syntax:
enum enum_name (list of constant);

5. What Is Enum Used For?

6. What Is Enum Used For?
Enum in c programming is used to allocate a name to the integral constant.
Example:
enum fruits {mango, apple, grapes, banana};
User-defined
type
Keyword
Enumerated constant

7. What Is Enum Used For?
Example:
enum fruits {mango, apple, grapes, banana};
User-defined
type
Keyword
Enumerated constant
0 1 2 3

8. Enum Variable Declaration

9. Example:
enum months {Jan, Feb, mar , Apr ,May,June };
User-defined
type
Keyword
Enumerated constant
0 1 6 7
=5 =9
enum month m; //variable declaration
m = mar;
Enum Variable Declaration

10. Example:
enum months {Jan, Feb, mar, Apr, May, June};
User-defined
type
Keyword
Enumerated constant
0 1 6 7
5 9
enum month
m1 =
m2 =
m2,
m1, m3, m5,
m4, m6;
mar;
Apr;
Enum Variable Declaration
----------- 5
----------- 6

11. Enumeration Example Program