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CPP Enumeration

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Enum is a data type defined in CPP library that can include fixed set of static and implicit constants like days of the week, directions etc.

Advantages of using Enum:

  • Improves type safety.
  • Can be easily used in switch.
  • Can be traversed.
  • Can have fields, constructors and methods.
  • May implement many interfaces but cannot extend any class because it internally extends Enum class.

Example:

#include <iostream.h>  
using namespace std;  
enum directions { North, South, East, West };  
int main()  
{  
directions direction;  
direction = East;  
cout << "Direction: " << direction+1 <<endl;  
return 0;  
}

Output

Direction: 3