// ============================================================================
//
// Copyright (c) 1997 The CGAL Consortium
//
// This software and related documentation is part of an INTERNAL release
// of the Computational Geometry Algorithms Library (CGAL). It is not
// intended for general use.
//
// ----------------------------------------------------------------------------
//
// release       :
// release_date  :
//
// file          : include/CGAL/Triangulation_utils_2.h
// revision      : $Revision$
// author(s)     : Mariette Yvinec <Mariette.Yvinec@sophia.inria.fr>
//                 Sylvain Pion    <Sylvain.Pion@sophia.inria.fr>
//                 Andreas Fabri   <Andreas.Fabri@geometryfactory.com>
//
// coordinator   : Mariette Yvinec <Mariette.Yvinec@sophia.inria.fr>
//
// ============================================================================
#ifndef CGAL_TRIANGULATION_UTILS_2_H
#define CGAL_TRIANGULATION_UTILS_2_H

CGAL_BEGIN_NAMESPACE 
template < class T = void >
struct Triangulation_cw_ccw_static_2 {

static const int ccw_map[3];
static const int cw_map[3];
};
template < class T >
const int Triangulation_cw_ccw_static_2<T>::ccw_map[3] = {1, 2, 0};

template < class T >
const int Triangulation_cw_ccw_static_2<T>::cw_map[3] = {2, 0, 1};

class Triangulation_cw_ccw_2 
  : public  Triangulation_cw_ccw_static_2<>
{
public:
  static int ccw(const int i) 
    {
      CGAL_triangulation_precondition( i >= 0 && i < 3);
      return ccw_map[i];
    }

  static int cw(const int i)
    {
      CGAL_triangulation_precondition( i >= 0 && i < 3);
      return cw_map[i];
    }
};

CGAL_END_NAMESPACE

#endif //CGAL_TRIANGULATION_UTILS_2_H