260 #define array_alloc(array)						\  argument
262 	typeof((array)->freelist) _ret = (array)->freelist;		\
265 		(array)->freelist = *((typeof((array)->freelist) *) _ret);\
270 #define array_free(array, ptr)						\  argument
272 	typeof((array)->freelist) _ptr = ptr;				\
274 	*((typeof((array)->freelist) *) _ptr) = (array)->freelist;	\
275 	(array)->freelist = _ptr;					\
278 #define array_allocator_init(array)					\  argument
280 	typeof((array)->freelist) _i;					\
282 	BUILD_BUG_ON(sizeof((array)->data[0]) < sizeof(void *));	\
283 	(array)->freelist = NULL;					\
285 	for (_i = (array)->data;					\
286 	     _i < (array)->data + ARRAY_SIZE((array)->data);		\
288 		array_free(array, _i);					\
291 #define array_freelist_empty(array)	((array)->freelist == NULL)  argument