module Assoc: sig .. end
type ('a, 'b) t = ('a * 'b) list
val get : ?eq:('a -> 'a -> bool) -> ('a, 'b) t -> 'a -> 'b option
Find the element
val get_exn : ?eq:('a -> 'a -> bool) -> ('a, 'b) t -> 'a -> 'b
Same as get
Raises Not_found if the element is not present
val set : ?eq:('a -> 'a -> bool) ->
('a, 'b) t -> 'a -> 'b -> ('a, 'b) t
Add the binding into the list (erase it if already present)
val mem : ?eq:('a -> 'a -> bool) -> ('a, 'b) t -> 'a -> bool
mem l x returns true iff x is a key in l
Since 0.16
val update : ?eq:('a -> 'a -> bool) ->
('a, 'b) t ->
'a -> f:('b option -> 'b option) -> ('a, 'b) t
update l k ~f updates l on the key k, by calling f (get l k)
and removing k if it returns None, mapping k to v' if it
returns Some v'
Since 0.16
val remove : ?eq:('a -> 'a -> bool) ->
('a, 'b) t -> 'a -> ('a, 'b) t
remove l k removes the first occurrence of k from l.
Since 0.17