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C++ enum Keyword

❮ C++ Keywords


Example

Create an enumerated type:

enum Level {
  LOW = 25,
  MEDIUM = 50,
  HIGH = 75
}; 

int main() {
  enum Level myVar = MEDIUM;
  cout << myVar;
  return 0;
} 

Try it Yourself »


Definition and Usage

The enum keyword declares an enumeration, which is a special data type that represents a group of constants (unchangeable values).

To create an enum, use the enum keyword, followed by the name of the enum, and separate the enum items with a comma.

An enum acts as a data type for a variable. A variable of that type can only contain one of the values specified by the enum.


Syntax

One of the following:

enum enumName {
  ITEM1,
  ITEM2,
  ...
}
enum enumName {
  ITEM1 = value1,
  ITEM2 = value2,
  ...
}

enumName specifies the name of the data type. Each option is specified as a comma-separated list (ITEM1, ITEM2, ...) within the block. By default each option is assigned a different whole number starting from zero. Optionally, you can assign an integer to each of the items in the enumeration (shown as value1, value2 ...).


❮ C++ Keywords

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