B_TRUE
typedef enum boolean { B_FALSE, B_TRUE } boolean_t;
#define B_TRUE _B_TRUE
#define B_TRUE 1
#define B_TRUE 1
typedef enum {B_FALSE=0, B_TRUE} Boolean;
typedef enum boolean { B_FALSE, B_TRUE } boolean_t;
typedef enum { B_FALSE = 0, B_TRUE = 1, _B_FALSE = 0, _B_TRUE = 1 } boolean_t;