#define ll_tail__(STRUCT, MEMBER, LIST) \
ll_data__ (ll_tail (LIST), STRUCT, MEMBER, LIST)
#define ll_next__(DATA, STRUCT, MEMBER, LIST) \
#define ll_tail__(STRUCT, MEMBER, LIST) \
ll_data__ (ll_tail (LIST), STRUCT, MEMBER, LIST)
#define ll_next__(DATA, STRUCT, MEMBER, LIST) \