SundanceExplicitCellIterator.hpp

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// 
//                              Sundance
//                 Copyright (2005) Sandia Corporation
// 
// Copyright (year first published) Sandia Corporation.  Under the terms 
// of Contract DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government 
// retains certain rights in this software.
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// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
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// Lesser General Public License for more details.
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#ifndef SUNDANCE_EXPLICITCELLITERATOR_H
#define SUNDANCE_EXPLICITCELLITERATOR_H


#include "SundanceDefs.hpp"
#include "SundanceSet.hpp"
#include "SundanceMap.hpp"
#include "SundanceCellType.hpp"
#include "Teuchos_RefCountPtr.hpp"
#include "SundanceMesh.hpp"

namespace Sundance
{
/**
 *
 */
class ExplicitCellIterator
{
public:
  /** */
  ExplicitCellIterator(const Set<int>::const_iterator& iter);
      
  /** Dereferencing operator */
  const int& operator*() const {return *iter_;}
      
  /** Postfix increment: advances iterator and returns previous value  */
  CellIterator operator++(int) 
    {
      CellIterator old = *this;
      iter_++;
      return old;
    }
      

  /** Prefix increment: advances iterator, returning new value */
  CellIterator& operator++()
    {
      iter_++;
      return *this;
    }

  /** */
  bool operator==(const CellIterator& other) const 
    {
      return iter_ == other.iter_;
    }

  /** */
  bool operator!=(const CellIterator& other) const 
    {
      return currentLID_ == other.currentLID_;
    }

      
private:

  /** The LID to which this iterator is currently pointing. */
  int currentLID_;

  /** Unmanaged pointer to the cell set through which this iterator
   * is iterating */
  CellSetBase* cellSet_;

      
      
};

}



#endif