boolean
typedef enum boolean { B_FALSE, B_TRUE } boolean_t;
enum boolean { True, False };
typedef int boolean;
#define boolean(v) ((((zzhack *)(&(v))))->zz_boolean)
typedef int boolean;
#define boolean int
typedef enum { false = 0, true = 1 } boolean;
typedef enum { false = 0, true = 1 } boolean;
typedef int boolean;
typedef enum boolean { B_FALSE, B_TRUE } boolean_t;