Sourceval eq_pair :
('a -> 'a -> bool) ->
('b -> 'b -> bool) ->
('a * 'b) ->
('a * 'b) ->
bool Sourceval hash_pair :
(int -> 'a -> int) ->
(int -> 'b -> int) ->
int ->
('a * 'b) ->
int Sourceval hash_string : int -> string -> int Sourceval hash_elt : ('a -> int) -> int -> 'a -> int