What is enum data type in C?

Enumeration or Enum in C is a special kind of data type defined by the user. It consists of constant integrals or integers that are given names by a user. The use of enum in C to name the integer values makes the entire program easy to learn, understand, and maintain by the same or even different programmer.

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What is the enumeration data type explain with an example?

For example: enum { Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday } weekday; defines the variable weekday , which can be assigned any of the specified enumeration constants. However, you cannot declare any additional enumeration variables using this set of enumeration constants.

What is enum datatype syntax?

Enumeration is a user defined datatype in C language. It is used to assign names to the integral constants which makes a program easy to read and maintain. The keyword “enum” is used to declare an enumeration. Here is the syntax of enum in C language, enum enum_name{const1, const2….. };

How do we declare enum variable in C?

In C programming, an enumeration type (also called enum) is a data type that consists of integral constants. To define enums, the enum keyword is used. enum flag {const1, const2., constN}; By default, const1 is 0, const2 is 1 and so on.

Is enum an int in C?

Yes. In C enum types are just int s under the covers. Typecast them to whatever you want. enums are not always ints in C.

What is enum used for?

An enum type is a special data type that enables for a variable to be a set of predefined constants. The variable must be equal to one of the values that have been predefined for it. Common examples include compass directions (values of NORTH, SOUTH, EAST, and WEST) and the days of the week.

What is size of enum in C?

The C standard specifies that enums are integers, but it does not specify the size. Once again, that is up to the people who write the compiler. On an 8-bit processor, enums can be 16-bits wide. On a 32-bit processor they can be 32-bits wide or more or less.

What are enums in programming?

In computer programming, an enumerated type (also called enumeration, enum, or factor in the R programming language, and a categorical variable in statistics) is a data type consisting of a set of named values called elements, members, enumeral, or enumerators of the type.

How do you create an enum?

An enum can, just like a class , have attributes and methods. The only difference is that enum constants are public , static and final (unchangeable – cannot be overridden). An enum cannot be used to create objects, and it cannot extend other classes (but it can implement interfaces).

How do you declare an enum?

An enum is defined using the enum keyword, directly inside a namespace, class, or structure. All the constant names can be declared inside the curly brackets and separated by a comma. The following defines an enum for the weekdays. Above, the WeekDays enum declares members in each line separated by a comma.

What is the size of enum in C?

What is the correct syntax of enum?

Explanation: The correct syntax of enum is enum flag{constant1, constant2, constant3….. };

Why are enums used?

You should use enum types any time you need to represent a fixed set of constants. That includes natural enum types such as the planets in our solar system and data sets where you know all possible values at compile time—for example, the choices on a menu, command line flags, and so on.

Why is enum used?

Enums are used when we know all possible values at compile time, such as choices on a menu, rounding modes, command-line flags, etc. It is not necessary that the set of constants in an enum type stay fixed for all time. A Java enumeration is a class type.

How do you write an enum?

Example of applying Enum on a switch statement

class EnumExample5{
enum Day{ SUNDAY, MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY}
public static void main(String args[]){
Day day=Day.MONDAY;
switch(day){
case SUNDAY:
System.out.println(“sunday”);
break;

How do you create an enum with two values?

we should do the following steps to have an enum with different values: Create enum constructor which accepts multiple values. Assign each constructor argument to a member field in the enum definition. Create getter methods so we can access any of the values assigned to a particular enum constant.

Can enum have 2 values?

The Enum constructor can accept multiple values.

What are enum types?

Enumerated (enum) types are data types that comprise a static, ordered set of values. They are equivalent to the enum types supported in a number of programming languages. An example of an enum type might be the days of the week, or a set of status values for a piece of data.

What is enum data type in C?