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variable.h

/**
 *
 * Authors:
 *   Tim Dwyer <tgdwyer@gmail.com>
 *
 * Copyright (C) 2005 Authors
 *
 * Released under GNU LGPL.  Read the file 'COPYING' for more information.
 */
#ifndef SEEN_REMOVEOVERLAP_VARIABLE_H
#define SEEN_REMOVEOVERLAP_VARIABLE_H

#include <vector>
#include <iostream>
#include "block.h"

namespace vpsc {

class Constraint;
typedef std::vector<Constraint*> Constraints;
class Variable
{
      friend std::ostream& operator <<(std::ostream &os, const Variable &v);
public:
      const int id; // useful in log files
      double desiredPosition;
      const double weight;
      double offset;
      Block *block;
      bool visited;
      Constraints in;
      Constraints out;
      char *toString();
      inline Variable(const int id, const double desiredPos, const double weight)
            : id(id)
            , desiredPosition(desiredPos)
            , weight(weight)
            , offset(0)
            , block(NULL)
            , visited(false)
      {
      }
      inline double position() const {
            return block->posn+offset;
      }
      //double position() const;
      ~Variable(void){
            in.clear();
            out.clear();
      }
};
}
#endif // SEEN_REMOVEOVERLAP_VARIABLE_H

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