Module Hash_set_ident_mask

type ident = Ident.t

Based on hash_set specialized for mask operations

type t
val create : int -> t
val add_unmask : t -> ident -> unit
val mask_and_check_all_hit : t -> ident -> bool

check_mask h key if key exists mask it otherwise nothing return true if all keys are masked otherwise false

val iter_and_unmask : t -> (ident -> bool -> unit) -> unit

iter_and_unmask f h iterating the collection and mask all idents, dont consul the collection in function f TODO: what happens if an exception raised in the callback, would the hashtbl still be in consistent state?