OPTIONAL | |
SYNOPSIS | |
mixed * intersect_alist (mixed * list1, mixed * list2) | |
DESCRIPTION | |
Does a fast set intersection on alist key vectors (NOT on full alists!). | |
The operator '&' does set intersection on arrays in general. | |
EXAMPLE | |
new_list = intersect_alist(list1, list2); | |
SEE ALSO | |
filter(E), assoc(E), insert_alist(E), map(E), | |
member_array(E), order_alist(E), sort_array(E), unique_array(E) |