Enumerations

• keyword

  enum

enum Suit { CLUB, DIAMOND, HEART, SPADE };
Suit s; // enum keyword here not required
s = CLUB; // of course
s = (Suit) 1; // Ok, not recommended
s = 1; // ERROR
enum PrintFlags {COLOR=1, LANDSCAPE=2, TWOSIDE=4};
// Range is [0:7]
PrintFlags pf = COLOR | TWOSIDE;
pf = (PrintFlags) 6;
pf = (PrintFlags) 11; // Undefined!!
switch ( s ) { // use a default label!!