This data type is used when some variables are required to
store a reduced set of values not covered by any of the basic data
types. Suppose that an application has to store the type of connection
available in a device and must have one of the values GPRS, Wifi, Bluetooth
or none. C allows to define a data type that can only store these values
using the keyword “enum” as follows:
enum type_of_connection { GPRS, Wifi, Bluetooth, None};From this definition on, there exists a new data type
enum type_of_connection that can be used as any other data
type:
enum type_of_connection connection_type;
connection_type = GPRS;
connection_type = Bluetooth;
