Functor Map.Make


module Map.Make: 
functor (Ord : Extlib.ExtMap.Map.OrderedType) -> Extlib.ExtMap.Map.S with type key = Ord.t
Functor building an implementation of the map structure given a totally ordered type.
Parameters:
Ord : Extlib.ExtMap.Map.OrderedType

type key 
The type of the map keys.
type +'a t 
The type of maps from type key to type 'a.
val empty : 'a Map.S.t
The empty map.
val is_empty : 'a Map.S.t -> bool
Test whether a map is empty or not.
val add : Map.S.key ->
'a -> 'a Map.S.t -> 'a Map.S.t
add x y m returns a map containing the same bindings as m, plus a binding of x to y. If x was already bound in m, its previous binding disappears.
val find : Map.S.key -> 'a Map.S.t -> 'a
find x m returns the current binding of x in m, or raises Not_found if no such binding exists.
val remove : Map.S.key ->
'a Map.S.t -> 'a Map.S.t
remove x m returns a map containing the same bindings as m, except for x which is unbound in the returned map.
val mem : Map.S.key -> 'a Map.S.t -> bool
mem x m returns true if m contains a binding for x, and false otherwise.
val iter : (Map.S.key -> 'a -> unit) -> 'a Map.S.t -> unit
iter f m applies f to all bindings in map m. f receives the key as first argument, and the associated value as second argument. The bindings are passed to f in increasing order with respect to the ordering over the type of the keys. Only current bindings are presented to f: bindings hidden by more recent bindings are not passed to f.
val map : ('a -> 'b) -> 'a Map.S.t -> 'b Map.S.t
map f m returns a map with same domain as m, where the associated value a of all bindings of m has been replaced by the result of the application of f to a. The bindings are passed to f in increasing order with respect to the ordering over the type of the keys.
val mapi : (Map.S.key -> 'a -> 'b) ->
'a Map.S.t -> 'b Map.S.t
Same as Map.S.map, but the function receives as arguments both the key and the associated value for each binding of the map.
val fold : (Map.S.key -> 'a -> 'b -> 'b) ->
'a Map.S.t -> 'b -> 'b
fold f m a computes (f kN dN ... (f k1 d1 a)...), where k1 ... kN are the keys of all bindings in m (in increasing order), and d1 ... dN are the associated data.
val filter : ('a -> bool) -> 'a Map.S.t -> 'a Map.S.t
filter f m returns a map where only the values a of m such that f a = true remain. The bindings are passed to f in increasing order with respect to the ordering over the type of the keys.
val filteri : (Map.S.key -> 'a -> bool) ->
'a Map.S.t -> 'a Map.S.t
filter f m returns a map where only the key, values pairs key, a of m such that f key a = true remain. The bindings are passed to f in increasing order with respect to the ordering over the type of the keys.
val filter_map : (Map.S.key -> 'a -> 'b option) ->
'a Map.S.t -> 'b Map.S.t
filter_map f m combines the features of filteri and map. It calls calls f key0 a0, f key1 a1, f keyn an where a0..an are the elements of m and key0..keyn the respective corresponding keys. It returns the map of pairs keyi,bi such as f keyi ai = Some bi (when f returns None, the corresponding element of m is discarded).
val compare : ('a -> 'a -> int) ->
'a Map.S.t -> 'a Map.S.t -> int
Total ordering between maps. The first argument is a total ordering used to compare data associated with equal keys in the two maps.
val equal : ('a -> 'a -> bool) ->
'a Map.S.t -> 'a Map.S.t -> bool
equal cmp m1 m2 tests whether the maps m1 and m2 are equal, that is, contain equal keys and associate them with equal data. cmp is the equality predicate used to compare the data associated with the keys.
val keys : 'a Map.S.t -> Map.S.key Enum.t
Return an enumeration of all the keys of a map.
val values : 'a Map.S.t -> 'a Enum.t
Return an enumeration of al the values of a map.
val enum : 'a Map.S.t -> (Map.S.key * 'a) Enum.t
Return an enumeration of (key, value) pairs of a map.
val of_enum : (Map.S.key * 'a) Enum.t -> 'a Map.S.t
Create a map from a (key, value) enumeration.

Boilerplate code


S-Expressions

val t_of_sexp : (Sexplib.Sexp.t -> Map.S.key) ->
(Sexplib.Sexp.t -> 'a) -> Sexplib.Sexp.t -> 'a Map.S.t
val sexp_of_t : (Map.S.key -> Sexplib.Sexp.t) ->
('a -> Sexplib.Sexp.t) -> 'a Map.S.t -> Sexplib.Sexp.t

Printing

val print : ?first:string ->
?last:string ->
?sep:string ->
('a Extlib.InnerIO.output -> Map.S.key -> unit) ->
('a Extlib.InnerIO.output -> 'b -> unit) ->
'a Extlib.InnerIO.output -> 'b Map.S.t -> unit

Output signature of the functor Map.Make.

Override modules


The following modules replace functions defined in Map with functions behaving slightly differently but having the same name. This is by design: the functions meant to override the corresponding functions of Map.

To take advantage of these overrides, you probably want to or . For instance, to open a version of Map with exceptionless error management, you may write

open Map,
       Exceptionless
. To locally replace module Map with a module of the same name but with exceptionless error management, you may write
module Map = Map include Exceptionless
.
module Extlib.ExtMap.Map.S.Exceptionless: sig .. end
Operations on Map without exceptions.
module Extlib.ExtMap.Map.S.Labels: sig .. end
Operations on Map with labels.