itlist
Lib.itlist : ('a -> 'b -> 'b) -> 'a list -> 'b -> 'b
List iteration function. Applies a binary function between adjacent elements of a list.
itlist f [x1,...,xn] b returns
f x1 (f x2 ... (f xn b)...)
An invocation itlist f list b returns b if list is empty.
Failure
Fails if some application of f fails.
Example
> itlist (curry op+) [1,2,3,4] 0;
val it = 10: int
See also
Lib.itlist2, Lib.rev_itlist,
Lib.rev_itlist2,
Lib.end_itlist