text: // Copyright (c) 2005  Stanford University (USA).
  // All rights reserved.
  //
  // This file is part of CGAL (www.cgal.org); you can redistribute it and/or
  // modify it under the terms of the GNU Lesser General Public License as
  // published by the Free Software Foundation; either version 3 of the License,
  // or (at your option) any later version.
  //
  // Licensees holding a valid commercial license may use this file in
  // accordance with the commercial license agreement provided with the software.
  //
  // This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
  // WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  //
  // $URL$
  // $Id$
  // 
  //
  // Author(s)     : Daniel Russel <drussel@alumni.princeton.edu>
  
  #ifndef CGAL_POLYNOMIAL_NT_CONVERTERS_H
  #define CGAL_POLYNOMIAL_NT_CONVERTERS_H
  
  #include <CGAL/Polynomial/basic.h>
  
  #ifdef CGAL_POLYNOMIAL_USE_CGAL
  #include <CGAL/NT_converter.h>
  #include <CGAL/number_utils_classes.h>
  
  namespace CGAL { namespace POLYNOMIAL {
  
  template <class NT1, class NT2>
  class NT_converter: public CGAL::NT_converter<NT1, NT2>
  {
      public:
          NT_converter(){}
  };
  
  template <class NT>
  class To_double: public CGAL::To_double<NT>
  {
      public:
          To_double(){}
  };
  
  /*template <class NT>
  double to_double(const NT &nt) {
    return CGAL::to_double(nt);
    }*/
  
  } } //namespace CGAL::POLYNOMIAL
  
  #else
  
  Not implemented yet;
  #endif
  
  namespace CGAL { namespace POLYNOMIAL {
  
  //! This does not use any CGAL code.
  template <class NT>
  struct Identity_converter
  {
      typedef NT argument_type;
      typedef NT result_type;
      Identity_converter(){}
      const NT &operator()(const NT &nt) const
      {
          return nt;
      }
  };
  
  } } //namespace CGAL::POLYNOMIAL
  #endif
  