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74 lines
1.8 KiB
74 lines
1.8 KiB
(*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*)
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open NS0
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module type S = sig
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type key
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module Key : sig
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type t = key
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include Comparator.S with type t := t
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end
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include Core_kernel.Map_intf.Make_S_plain_tree(Key).S
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val compare : ('a -> 'a -> int) -> 'a t -> 'a t -> int
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val is_singleton : 'a t -> bool
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val map_endo : 'a t -> f:('a -> 'a) -> 'a t
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(** Like map, but specialized to require [f] to be an endofunction, which
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enables preserving [==] if [f] preserves [==] of every element. *)
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val merge_endo :
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'a t
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-> 'b t
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-> f:
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( key:key
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-> [`Both of 'a * 'b | `Left of 'a | `Right of 'b]
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-> 'a option)
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-> 'a t
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(** Like merge, but specialized to require [f] to preserve the type of the
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left argument, which enables preserving [==] if [f] preserves [==] of
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every element. *)
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val merge_skewed :
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'a t -> 'a t -> combine:(key:key -> 'a -> 'a -> 'a) -> 'a t
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val fold_until :
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'v t
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-> init:'a
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-> f:(key:key -> data:'v -> 'a -> ('a, 'r) Continue_or_stop.t)
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-> finish:('a -> 'r)
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-> 'r
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val choose_exn : 'a t -> key * 'a
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(** Find an unspecified element. [O(1)]. *)
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val choose : 'a t -> (key * 'a) option
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(** Find an unspecified element. [O(1)]. *)
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val pop : 'a t -> (key * 'a * 'a t) option
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(** Find and remove an unspecified element. [O(1)]. *)
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val pop_min_elt : 'a t -> (key * 'a * 'a t) option
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(** Find and remove minimum element. [O(log n)]. *)
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val find_and_remove : 'a t -> key -> ('a * 'a t) option
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(** Find and remove an element. *)
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val pp : key pp -> 'a pp -> 'a t pp
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val pp_diff :
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data_equal:('a -> 'a -> bool)
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-> key pp
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-> 'a pp
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-> ('a * 'a) pp
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-> ('a t * 'a t) pp
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end
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