// ======================================================================
//
// Copyright (c) 2000 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/Cartesian/redefine_names_2.h
// revision      : $Revision$
// revision_date : $Date$
// author(s)     : Herve Bronnimann
// coordinator   : INRIA Sophia-Antipolis (Mariette.Yvinec@sophia.inria.fr)
//
// ======================================================================

#ifndef CGAL_CARTESIAN_REDEFINE_NAMES_2_H
#define CGAL_CARTESIAN_REDEFINE_NAMES_2_H

#ifndef CGAL_CFG_NO_ADVANCED_KERNEL

// The following defines allow to keep a uniform presentation in
// Point_2.h for both advanced and non-advanced kernels. This is a
// temporary situation. When the non-advanced kernel disappears, all
// classes ...C2 should be renamed ..._2 and this will be it for this
// file. Meanwhile, this hack allows to have both versions at once.

// In Lutz' and Michael's design, PointC2<R> becomes
// Point_2<R,Cartesian_tag>, hence the following defines.

#define PointC2 Point_2
#define VectorC2 Vector_2
#define DirectionC2 Direction_2
#define LineC2 Line_2
#define RayC2 Ray_2
#define SegmentC2 Segment_2
#define TriangleC2 Triangle_2
#define CircleC2 Circle_2
#define Iso_rectangleC2 Iso_rectangle_2
#define Aff_transformationC2 Aff_transformation_2
#define Data_accessorC2 Data_accessor_2

// There is one more problem in unifying the two designs
// We must also take care of the declarations in .C files
// Specifically, in Lutz' and Michael's design, functions are defined as
// PointC2<R,Cartesian_tag>::function() {}
// and in Stefan's design, their definition looks like
// PointC2<R>::function() {}
// We unify this with PointC2<R CGAL_CTAG >::function
#define CGAL_CTAG   , Cartesian_tag

// This is the mark of a partial specialization.  Used by all kernel classes.
#define CGAL_ADVANCED_KERNEL_PARTIAL_SPEC <R_,Cartesian_tag>

#else

#define CGAL_CTAG

#define CGAL_ADVANCED_KERNEL_PARTIAL_SPEC

// Note that it was not possible to keep the opposite (changing the
// Point_2 into PointC2 for Stefan's design) because it would also
// change "typename R::Point_2" into "typename R::PointC2" inside the
// classes definition. A successful hack would then have to analyze
// which Point_2 is intended, hence too complicated.

#endif

#endif // CGAL_CARTESIAN_REDEFINE_NAMES_2_H