Data Tayp

Question

what is the data type "enum"
what it do ?

Answer 1

An enum (or enumeration) allows you to define your own data type.

enum color
{
RED,
GREEN,
BLUE
};

int main()
{
color car = RED;
switch (car)
{
case RED:
cout << "Car is red";
break;
case GREEN:
cout << "Car is green";
break;
case BLUE:
cout << "Car is blue";
break;
}
}

This short little program gives you a good idea of what an enumeration can do.

In a more real-world situation, you may have an enumeration for "gamestate" in a game, and you could have values such as RUNNING, PAUSE, QUIT etc. It just makes it a LOT easier than using something like int 1, 2 and 3, which can get confusing.