Non-Default Values

Sometimes, you don't just want to enumerate some names (where the underlying integer constant values don't really matter)... you want to set those enumerations to specific values. For example, you might want to define a program's exit status codes:

typedef enum {
  EXIT_SUCCESS = 0,
  EXIT_FAILURE = 1,
  EXIT_COMMAND_NOT_FOUND = 127,
} ExitStatus;

Alternatively, you can define the first value and let the compiler fill in the rest (incrementing by 1):

typedef enum {
  LANE_WPM = 200,
  PRIME_WPM, // 201
  TEEJ_WPM,  // 202
} WordsPerMinute;