28 lines
649 B
OCaml
28 lines
649 B
OCaml
module type OrderedType = Map.OrderedType
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module type S = sig
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include Map.S
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val of_list : (key * 'a) list -> 'a t
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val to_list : 'a t -> 'a list
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val to_kv_list : 'a t -> (key * 'a) list
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end
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module Make(Ord : Map.OrderedType) : S with type key = Ord.t = struct
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include Map.Make(Ord)
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let of_list (lst: (key * 'a) list) : 'a t =
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let aux prev (k, v) = add k v prev in
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List.fold_left aux empty lst
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let to_list (t: 'a t) : 'a list =
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let aux _k v prev = v :: prev in
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fold aux t []
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let to_kv_list (t: 'a t) : (key * 'a) list =
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let aux k v prev = (k, v) :: prev in
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fold aux t []
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end
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module String = Make(String)
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