What is a Forward Declaration enum Enumeration in C++?

Understanding how to correct declare variables is important in programming, especially in a modern C++ Application. There is an enumeration method that allows you to easily enumerate (count or determine their place in an order) values in variables. In C++, enumeration is very important and widely used. In C++, enumeration can be done with an enum keyword which can be used in unscoped and scoped enumerations. There are some subtleties to declaring and using an enum especially if you use forward declaration of the enum . In this post, we explain what an enum is, what a forward declaration is, and how to declare a forward enum Enumeration in Modern C++ along with some easy-to-understand examples.

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What is (enum) enumeration in Modern C++?

An enumeration is used to declare constants in a range of values easily. It may include several explicitly-named constants which are also called as enumerators. In C++, enumeration can be done with the enum keyword which is also known as enum-key. An enum can be used in two ways in C++. These are:

Now, let’s see very simple some enum examples.