package ocaml-base-compiler
Corresponds to Index
in the S_functor
module type.
module T : Identifiable.Thing with type t = t
include Identifiable.Thing with type t := T.t
include Hashtbl.HashedType with type t := T.t
val hash : T.t -> int
A hashing function on keys. It must be such that if two keys are equal according to equal
, then they have identical hash values as computed by hash
. Examples: suitable (equal
, hash
) pairs for arbitrary key types include
- (
(=)
,Hashtbl.hash
) for comparing objects by structure (provided objects do not contain floats) - (
(fun x y -> compare x y = 0)
,Hashtbl.hash
) for comparing objects by structure and handlingStdlib.nan
correctly - (
(==)
,Hashtbl.hash
) for comparing objects by physical equality (e.g. for mutable or cyclic objects).
include Map.OrderedType with type t := T.t
A total ordering function over the keys. This is a two-argument function f
such that f e1 e2
is zero if the keys e1
and e2
are equal, f e1 e2
is strictly negative if e1
is smaller than e2
, and f e1 e2
is strictly positive if e1
is greater than e2
. Example: a suitable ordering function is the generic structural comparison function Stdlib.compare
.
val output : out_channel -> T.t -> unit
val print : Format.formatter -> T.t -> unit
module Set : Identifiable.Set with module T := T
module Map : Identifiable.Map with module T := T
module Tbl : Identifiable.Tbl with module T := T
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