c++ tutorila - enumerated types

[ben2ong2]

Sometimes as programmers we want to express the idea that a variable will be used for a specific purpose and should only be able to have a small number of values--for instance, a variable that stores the current direction of the wind might only need to store values corresponding to north, south, east, and west. One solution to this problem might be to use an int and some #define'd values:
#define NORTH_WIND        0
#define SOUTH_WIND        1
#define EAST_WIND         2
#define WEST_WIND         3     
#define NO_WIND           4       

int wind_direction = NO_WIND;