sig
type elt = t
type t
val empty : t
val is_empty : t -> bool
val mem : elt -> t -> bool
val add : elt -> t -> t
val singleton : elt -> t
val remove : elt -> t -> t
val union : t -> t -> t
val inter : t -> t -> t
val diff : t -> t -> t
val compare : t -> t -> int
val equal : t -> t -> bool
val subset : t -> t -> bool
val iter : (elt -> unit) -> t -> unit
val fold : (elt -> 'a -> 'a) -> t -> 'a -> 'a
val for_all : (elt -> bool) -> t -> bool
val exists : (elt -> bool) -> t -> bool
val filter : (elt -> bool) -> t -> t
val partition : (elt -> bool) -> t -> t * t
val cardinal : t -> int
val elements : t -> elt list
val min_elt : t -> elt
val max_elt : t -> elt
val choose : t -> elt
val split : elt -> t -> t * bool * t
module Datatype :
sig
type t = t
val rehash : t -> t
val descr : Unmarshal.t
val copy : t -> t
val name : string
val register_comparable :
?compare:(t -> t -> int) ->
?equal:(t -> t -> bool) ->
?hash:(t -> int) -> ?physical_hash:(t -> int) -> unit -> unit
val is_comparable_set : unit -> bool
val hash : t -> int
val physical_hash : t -> int
val equal : t -> t -> bool
val compare : t -> t -> int
val contain_project : (Project.project -> t -> bool) option ref
end
val pretty : Format.formatter -> Kernel_function.t -> unit
end