In this chapter you will learn how to work with C programming enumeration. Besides enum, you will also know where it is commonly used in C programming .
C Programming Enumeration
In C programming, enumeration is a user-defined data type that consists of integral constants. enumThe keyword is used to define the enumeration .
enum flag { constant1, constant2, ..., constantN };
Here flag is user defined data type
And constant1 , constant2 ,…., constantN are values of flag type.
By default constant1 has a value of 0, constant2 has a value of 1 and so on. You can change the default value of the enum element as per your need.
enumThat is, you can change the index of the element if you want .
// change the default value of enum
enum color {
red = 0,
green = 3,
black = 5,
white = 3,
};
C Program Enum Type Declaration
When you create a variable of type enum, only the blueprint of the variable is created. Below is the method of creating enum type variable
enum boolean { false, true };
enum boolean security;
Here enum booleana security variable of type is created.
Here the same security variable is created using different syntax .