Hoe zou je dit stuk C-code in een .chs-bestand kunnen coderen, zodat c2hs het kan omzetten in iets relatief moois?
typedef enum {
MONOME_BUTTON_UP = 0x00,
MONOME_BUTTON_DOWN = 0x01,
MONOME_ENCODER_DELTA = 0x02,
MONOME_ENCODER_KEY_UP = 0x03,
MONOME_ENCODER_KEY_DOWN = 0x04,
MONOME_TILT = 0x05,
/* update this if you add event types */
MONOME_EVENT_MAX = 0x06
} monome_event_type_t;
typedef struct monome monome_t; /* opaque data type */
typedef struct monome_event monome_event_t;
typedef void (*monome_event_callback_t)
(const monome_event_t *event, void *data);
struct monome_event {
monome_t *monome;
monome_event_type_t event_type;
/* __extension__ for anonymous unions in gcc */
__extension__ union {
struct {
unsigned int x;
unsigned int y;
} grid;
struct {
unsigned int number;
int delta;
} encoder;
struct {
unsigned int sensor;
int x;
int y;
int z;
} tilt;
};
};
Antwoord 1, autoriteit 100%
Wat dacht je hiervan: verander de code zodat je de leden een naam geeft. De lay-out in het geheugen is hetzelfde, zodat het binair compatibel zal zijn. Je zou deze patch voor elke versie van de lib moeten doen.
struct monome_event {
monome_t *monome;
monome_event_type_t event_type;
/* __extension__ for anonymous unions in gcc */
__extension__ union {
struct me_grid {
unsigned int x;
unsigned int y;
} grid;
struct me_encoder {
unsigned int number;
int delta;
} encoder;
struct me_tilt {
unsigned int sensor;
int x;
int y;
int z;
} tilt;
};
};