CVariableIter.h

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// -*- c++ -*-
//*****************************************************************************
//*****************************************************************************

// include basic definitions
#include "pbori_defs.h"

#ifndef CVariableIter_h_
#define CVariableIter_h_

BEGIN_NAMESPACE_PBORI

template <class Iterator, class VariableType> 
class CVariableIter : 
  public boost::iterator_facade<
  CVariableIter<Iterator, VariableType>,
  VariableType,
  typename Iterator::iterator_category,
  VariableType
  > {

public:
  typedef Iterator iterator_type;

  typedef VariableType var_type;

  typedef typename var_type::ring_type ring_type;

  typedef CVariableIter<iterator_type, var_type> self;

  CVariableIter(): m_iter(), m_ring() {}

  CVariableIter(const iterator_type& rhs, const ring_type& ring): 
    m_iter(rhs), m_ring(ring) {}

  bool isEnd() const { return m_iter.isEnd(); }

  void increment() { ++m_iter; }

  var_type dereference() const {  return var_type(*m_iter, m_ring); }

  bool equal(const self& rhs) const { return  m_iter == rhs.m_iter; }

private:
  iterator_type m_iter;

  ring_type m_ring;
};

END_NAMESPACE_PBORI


#endif // CVariableIter_h_

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