list_init
list_clear
list_free_items

list_len
list_index

list_insert_sorted
list_insert_sorted_bwd
list_insertion_sort

list_at
list_at_back

list_pop_front
list_pop_back

list_link_iter_fwd
list_link_iter_bwd
list_link_pop

list_link_prepend
list_link_append