Source file option.ml

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(*                              LASCAr                                *)
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(*  Copyright (c) 2017-present, Jocelyn SEROT.  All rights reserved.  *)
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(*  This source code is licensed under the license found in the       *)
(*  LICENSE file in the root directory of this source tree.           *)
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let map f x = match x with None -> None | Some x -> Some (f x)

let iter f x = match x with None -> () | Some x -> f x

let to_string f x = match x with None -> "" | Some x -> f x