NodeUseMap.h

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#ifndef OSMSCOUT_UTIL_NODEUSEMAP_H
#define OSMSCOUT_UTIL_NODEUSEMAP_H
 
/*
  This source is part of the libosmscout library
  Copyright (C) 2013  Tim Teulings
 
  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.
 
  This library 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
  Lesser General Public License for more details.
 
  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
*/
 
#include <osmscout/lib/CoreImportExport.h>
 
#include <bitset>
#include <unordered_map>
 
#include <osmscout/OSMScoutTypes.h>
 
#include <osmscout/system/Compiler.h>
 
namespace osmscout {

  class OSMSCOUT_API NodeUseMap CLASS_FINAL
  {
  private:
    using Bitset = std::bitset<4096>;
    using Map    = std::unordered_map<size_t, Bitset>;
 
  private:
    Map                                       nodeUseMap;
    size_t                                    nodeCount;
    size_t                                    duplicateCount;
 
  public:
    NodeUseMap();
 
    void SetNodeUsed(Id id);
    bool IsNodeUsedAtLeastTwice(Id id) const;
    size_t GetNodeUsedCount() const;
    size_t GetDuplicateCount() const;
 
    void Clear();
  };
}
 
#endif