PolyEntryReference.h

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

#ifndef polybori_groebner_PolyEntryReference_h_
#define polybori_groebner_PolyEntryReference_h_

// include basic definitions
#include "groebner_defs.h"
#include <set>

#include "PolyEntryIndices.h"
#include "PolyEntry.h"

BEGIN_NAMESPACE_PBORIGB

class PolyEntryReference {
  typedef PolyEntryReference self;

public:
  typedef PolyEntryIndices vector_type;
  typedef PolyEntry value_type;

  PolyEntryReference(value_type &entry, vector_type& parent): 
    vPairCalculated(entry.vPairCalculated), minimal(entry.minimal),
    m_entry(entry), m_parent(parent) { }

  bool operator==(const self& rhs) const { return m_entry == rhs; }


  void markVariablePairsCalculated() {
    return m_entry.markVariablePairsCalculated(); }

  bool propagatableBy(const PolyEntry& other) const {
    return m_entry.propagatableBy(other); 
  }

  std::set<idx_type>& vPairCalculated;
  bool& minimal;

  template <class Type>
  self& operator=(const Type& rhs) {
    Monomial lm(m_entry.lead);
    m_entry = rhs;
    m_parent.update(lm, m_entry);
    return *this;
  }

  const value_type& get() const { return const_cast<const value_type&>(m_entry); }

  operator const value_type&() const { return get(); }

private:
  value_type& m_entry;
  vector_type& m_parent;
};


END_NAMESPACE_PBORIGB

#endif /* polybori_groebner_PolyEntryReference_h_ */

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