Simplifying the use of enum types with typedef

Before we examine the use of typedef with enum types, we must first complete the picture of using enum types. Remember that defining a new type does not require memory allocation. Only when we declare variables of a given type is memory allocated to the variables. In the last two chapters, we used enum types by first defining them and then separately declaring variables of that type, as follows:

  // First define some enumerated types.

enum Face { eOne , eTwo , eThree , ... };

enum Suit { eSpade , eHeart, ... };

  // Then declare variables of those types.

enum Face f1 , f2;

enum Suit s1 , s2;

In the preceding code fragment, we have defined two types – enum Face and enum Suit. Later, in separate statements, two variables of each type are declared – f1, f2, s1, and s2.

Another way to achieve the same result...