/* ser_begin(x, s) -- Begin serialisation into a buffer x of size s. */
#define ser_begin(x, s) ser_ptr = ((uint8_t *)(x))
#define unser_begin(x, s) ser_ptr = ((uint8_t *)(x))
/* ser_begin(x, s) -- Begin serialisation into a buffer x of size s. */
#define ser_begin(x, s) ser_ptr = ((uint8_t *)(x))
#define unser_begin(x, s) ser_ptr = ((uint8_t *)(x))