bitmasks/Example.ml at master · metastack/bitmasks · GitHub

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(* ********************************************************************************************** *
 * MetaStack Solutions Ltd.                                                                       *
 * ********************************************************************************************** *
 * BitMask Sets Example (as given in documentation)                                               *
 * ********************************************************************************************** *
 * Copyright (c) 2013-17 MetaStack Solutions Ltd.                                                 *
 * ********************************************************************************************** *
 * Author: David Allsopp                                                                          *
 * 5-Mar-2014                                                                                     *
 * ********************************************************************************************** *
 * Redistribution and use in source and binary forms, with or without modification, are permitted *
 * provided that the following two conditions are met:                                            *
 *     1. Redistributions of source code must retain the above copyright notice, this list of     *
 *        conditions and the following disclaimer.                                                *
 *     2. Neither the name of MetaStack Solutions Ltd. nor the names of its contributors may be   *
 *        used to endorse or promote products derived from this software without specific prior   *
 *        written permission.                                                                     *
 *                                                                                                *
 * This software is provided by the Copyright Holder 'as is' and any express or implied           *
 * warranties, including, but not limited to, the implied warranties of merchantability and       *
 * fitness for a particular purpose are disclaimed. In no event shall the Copyright Holder be     *
 * liable for any direct, indirect, incidental, special, exemplary, or consequential damages      *
 * (including, but not limited to, procurement of substitute goods or services; loss of use,      *
 * data, or profits; or business interruption) however caused and on any theory of liability,     *
 * whether in contract, strict liability, or tort (including negligence or otherwise) arising in  *
 * any way out of the use of this software, even if advised of the possibility of such damage.    *
 * ********************************************************************************************** *)

module BMSet =
  struct
    type elt = A | B | C | D | E

    module BM =
      struct
        type t = elt

        let mask = 0b1100000100011

        include BitMaskSet.Int
      end

    include BitMaskSet.Make(BM)
  end