row_entry.cc

#include <scil/row_entry.h>
#include <scil/var_obj.h>

using namespace SCIL;

row_entry::row_entry(var v, double c) 
{ 
  coeff=c; 
  Var=v; 
};


std::ostream& SCIL::operator<<(std::ostream& o,const row_entry& re) 
{ 
  if(re.Var == nil) return o<<re.coeff;
  else return o<<re.coeff<<"*x"<<re.Var.var_pointer()->index(); 
};


std::istream& operator>>(std::istream& i,const row_entry&) 
{ 
  return i; 
};

bool SCIL::operator< ( const row_entry& re1, const row_entry& re2 )
{
  return (re1.Var < re2.Var);
};

namespace SCIL {
int compare(const row_entry& t1, const row_entry& t2) 
{
  return compare(t1.Var,t2.Var);
}
};

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