column_entry.h

#ifndef SCIL_COLUMN_ENTRY_H
#define SCIL_COLUMN_ENTRY_H

#include <iostream>
#include <scil/cons.h>
#include <list>

namespace SCIL {

class column_entry
{

 public:

  typedef std::list<column_entry>::iterator list_iterator;

  typedef std::list<column_entry>::const_iterator list_constiterator;

  double coeff;
  
  cons Cons;
  
  column_entry(cons v, double c);
  
  column_entry() { };
  friend std::ostream& operator<<(std::ostream& o,const column_entry&);
  friend std::istream& operator>>(std::istream& i,const column_entry&);
  
  friend bool operator< ( const column_entry&, const column_entry& );
  
};

bool operator< ( const column_entry& ce1, const column_entry& ce2 );

};

#endif

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