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/* -*- C++ -*- */
// $Id$

/* Copyright (C) 1989 Free Software Foundation, Inc.
   written by Douglas C. Schmidt (schmidt@ics.uci.edu)

This file is part of GNU GPERF.

GNU GPERF is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 1, or (at your option) any
later version.

GNU GPERF is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU GPERF; see the file COPYING.  If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA.*/

#ifndef BOOL_ARRAY_H
#define BOOL_ARRAY_H

#include "ace/OS.h"

#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */

#include "Options.h"

#if defined (ACE_HAS_GPERF)

class Bool_Array
{
  // = TITLE
  //   Efficient lookup table abstraction implemented as a "Generation
  //   Number" Array.
  //
  // = DESCRIPTION
  //   Uses a "Generation Numbering" implementation to minimize
  //   initialization time.
public:
  // = Initialization and termination methods.
  Bool_Array (void);
  // Constructor

  int open (u_long);
  // Initialize the array (requires O(n) time).

  ~Bool_Array (void);
  // Destructor.

  int find (u_long value);
  // Locate the <value> in the array (requires O(1) time).

  void reset (void);
  // Reinitializes the array (requires O(1) time).

private:
  u_long *storage_array_;
  // Initialization of the index space.

  u_long generation_number_;
  // Keep track of the current Generation.

  u_long size_;
  // Keep track of array size.
};

#endif /* ACE_HAS_GPERF */
#endif /* BOOL_ARRAY_H */