package containers

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Module
Module type
Parameter
Class
Class type
type elt
type t
val empty : t
val is_empty : t -> bool
val mem : t -> elt -> bool
val count : t -> elt -> int
val singleton : elt -> t
val add : t -> elt -> t
val remove : t -> elt -> t
val add_mult : t -> elt -> int -> t

add_mult set x n adds n occurrences of x to set

  • raises Invalid_argument

    if n < 0

  • since 0.6
val remove_mult : t -> elt -> int -> t

remove_mult set x n removes at most n occurrences of x from set

  • raises Invalid_argument

    if n < 0

  • since 0.6
val remove_all : t -> elt -> t

remove_all set x removes all occurrences of x from set

  • since 0.22
val update : t -> elt -> (int -> int) -> t

update set x f calls f n where n is the current multiplicity of x in set (0 to indicate its absence); the result of f n is the new multiplicity of x.

  • raises Invalid_argument

    if f n < 0

  • since 0.6
val min : t -> elt

Minimal element w.r.t the total ordering on elements

val max : t -> elt

Maximal element w.r.t the total ordering on elements

val union : t -> t -> t

union a b contains as many occurrences of an element x as count a x + count b x.

val meet : t -> t -> t

meet a b is a multiset such that count (meet a b) x = max (count a x) (count b x)

val intersection : t -> t -> t

intersection a b is a multiset such that count (intersection a b) x = min (count a x) (count b x)

val diff : t -> t -> t

MultiSet difference. count (diff a b) x = max (count a x - count b x) 0

val contains : t -> t -> bool

contains a x = (count m x > 0)

val compare : t -> t -> int
val equal : t -> t -> bool
val cardinal : t -> int

Number of distinct elements

val iter : t -> (int -> elt -> unit) -> unit
val fold : t -> 'b -> ('b -> int -> elt -> 'b) -> 'b
val of_list : elt list -> t
val to_list : t -> elt list
val to_seq : t -> elt sequence
val of_seq : elt sequence -> t
val of_list_mult : (elt * int) list -> t
  • since 0.19
val to_list_mult : t -> (elt * int) list
  • since 0.19
val to_seq_mult : t -> (elt * int) sequence
  • since 0.19
val of_seq_mult : (elt * int) sequence -> t
  • since 0.19
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