What is Unscoped enum type?

In a unscoped enum, the scope is the surrounding scope; in a scoped enum, the scope is the enum-list itself. In a scoped enum, the list may be empty which in effect defines a new integral type. By using this keyword in the declaration, you specify the enum is scoped, and an identifier must be provided.

What is enum class in C++?

Enum Class C++11 has introduced enum classes (also called scoped enumerations), that makes enumerations both strongly typed and strongly scoped. Class enum doesn’t allow implicit conversion to int, and also doesn’t compare enumerators from different enumerations.

What is a scoped enum?

Overview. Scoped enums (enum class/struct) are strongly typed enumerations introduced in C++11. They address several shortcomings of the old C-style (C++98) enums, mainly associated with type-safety and name collisions.

Should enums be capitalized C++?

Starts with an uppercase letter; every new word should also start with an uppercase letter. Names of enums defined in the common scope should differ, so the use of prefixes is allowed here. E.g.: Underscore, DefaultSize. Starts with an uppercase letter; every new word should also start with an uppercase letter.

What is enum default value C#?

The default value for an enum is zero.

Why do we need enum?

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. In Java (from 1.5), enums are represented using enum data type.

What are enumerated data types in C++?

An enumerated type declares an optional type name and a set of zero or more identifiers that can be used as values of the type. Each enumerator is a constant whose type is the enumeration. For example, if you are creating an application that has a fixed number of types for some variable.

Why is enum used?

What can we use instead of enum?

Enum Alternatives in C#

public enum Roles { Author, Editor, Administrator, SalesRepresentative }
public string DoSomething(Roles role) { // do some different behavior based on the enum – probably a switch or if chain here return role. ToString(); }
var result = myObject. DoSomething((Roles)10);

What is difference between enum and enumeration in C#?

The main objective of enum is to define our own data types(Enumerated Data Types). Enumeration is declared using enum keyword directly inside a namespace, class, or structure. In above syntax, Enum_variable is the name of the enumerator, and string_1 is attached with value 0, string_2 is attached value 1 and so on.

What is Unscoped enum type?