#ifndef CGAL_KERNEL_D_CARTESIAN_LA_BASE_H
#define CGAL_KERNEL_D_CARTESIAN_LA_BASE_H

#include <CGAL/basic.h>
#include <CGAL/Origin.h>

#include <CGAL/representation_tags.h>
#include <CGAL/functor_tags.h>
#include <CGAL/Uncertain.h>
#include <CGAL/typeset.h>
#include <CGAL/Kernel_d/Dimension_base.h>
#include <CGAL/Kernel_d/Cartesian_LA_functors.h>
#include <CGAL/Vector/array.h>
#ifdef CGAL_EIGEN3_ENABLED
#include <CGAL/LA_eigen/LA.h>
#else
#include <CGAL/LA_default/LA.h>
#endif

namespace CGAL {

template < typename FT_, typename Dim_,
#if 0
	 typename Vec_=Array_vector<FT_, Dim_>,
#else
	 typename Vec_=LA_eigen<FT_, Dim_>,
#endif
	 typename LA_=LA_eigen<FT_,Dim_> >
  /* Default LA to Vec or to LA_eigen? */
struct Cartesian_LA_base_d : public Dimension_base<Dim_>
{
    typedef FT_                                         FT;
    typedef FT_                                         RT;
    typedef Cartesian_LA_base_d<FT_,Dim_>               Self;
    typedef Cartesian_tag                               Rep_tag;
    typedef Cartesian_tag                               Kernel_tag;
    typedef Dim_              Default_ambient_dimension;
    typedef Dim_              Max_ambient_dimension;
    typedef LA_               LA;

    typedef typename Same_uncertainty_nt<bool, FT>::type
                                                        Boolean;
    typedef typename Same_uncertainty_nt<CGAL::Sign, FT>::type
                                                        Sign;
    typedef typename Same_uncertainty_nt<CGAL::Comparison_result, FT>::type
                                                        Comparison_result;
    typedef typename Same_uncertainty_nt<CGAL::Orientation, FT>::type
                                                        Orientation;
    typedef typename Same_uncertainty_nt<CGAL::Oriented_side, FT>::type
                                                        Oriented_side;
    typedef typename Same_uncertainty_nt<CGAL::Bounded_side, FT>::type
                                                        Bounded_side;
    typedef typename Same_uncertainty_nt<CGAL::Angle, FT>::type
                                                        Angle;

    typedef Vec_     LA_vector;
    typedef typename LA_vector::Vector Point;
    typedef typename LA_vector::Vector Vector;
    typedef typename LA_vector::Vector Vector_;
    typedef typename LA_vector::Construct_vector Constructor;
    typedef typename LA_vector::Vector_const_iterator Point_cartesian_const_iterator;
    typedef typename LA_vector::Vector_const_iterator Vector_cartesian_const_iterator;

    template<class, class=void> struct Type {};
    template<class D> struct Type< Point_tag, D> { typedef Vector_ type; };
    template<class D> struct Type<Vector_tag, D> { typedef Vector_ type; };
    template<class D> struct Type<    RT_tag, D> { typedef      RT type; };
    template<class D> struct Type<    FT_tag, D> { typedef      FT type; };

    typedef typeset<Point_tag>
      ::add<Vector_tag>::type
      Object_list;

    typedef typeset< Point_cartesian_const_iterator_tag>::type
      ::add<Vector_cartesian_const_iterator_tag>::type
      Iterator_list;

    template<class, class=void, bool=true> struct Functor {
	    typedef Null_functor type;
    };
    template<class D> struct Functor<Construct_ttag<Vector_tag>,D> {
	    typedef CartesianDVectorBase::Construct_LA_vector<Self,Null_vector> type;
    };
    template<class D> struct Functor<Construct_ttag<Point_tag>,D> {
	    typedef CartesianDVectorBase::Construct_LA_vector<Self,Origin> type;
    };
    template<class D> struct Functor<Construct_ttag<Point_cartesian_const_iterator_tag>,D> {
	    typedef CartesianDVectorBase::Construct_cartesian_const_iterator<Self> type;
    };
    template<class D> struct Functor<Construct_ttag<Vector_cartesian_const_iterator_tag>,D> {
	    typedef CartesianDVectorBase::Construct_cartesian_const_iterator<Self> type;
    };
    template<class D> struct Functor<Sum_of_vectors_tag,D,
      LA_vector::template Property<Has_vector_plus_minus_tag>::value> {
	    typedef CartesianDVectorBase::Sum_of_vectors<Self> type;
    };
    template<class D> struct Functor<Difference_of_vectors_tag,D,
      LA_vector::template Property<Has_vector_plus_minus_tag>::value> {
	    typedef CartesianDVectorBase::Difference_of_vectors<Self> type;
    };
    template<class D> struct Functor<Opposite_vector_tag,D,
      LA_vector::template Property<Has_vector_plus_minus_tag>::value> {
	    typedef CartesianDVectorBase::Opposite_vector<Self> type;
    };
    template<class D> struct Functor<Midpoint_tag,D,
      LA_vector::template Property<Has_vector_plus_minus_tag>::value &&
      LA_vector::template Property<Has_vector_scalar_ops_tag>::value> {
	    typedef CartesianDVectorBase::Midpoint<Self> type;
    };
    template<class D> struct Functor<Compute_point_cartesian_coordinate_tag,D> {
	    typedef CartesianDVectorBase::Compute_cartesian_coordinate<Self> type;
    };
    template<class D> struct Functor<Compute_vector_cartesian_coordinate_tag,D> {
	    typedef CartesianDVectorBase::Compute_cartesian_coordinate<Self> type;
    };
    template<class D> struct Functor<Point_dimension_tag,D> {
	    typedef CartesianDVectorBase::PV_dimension<Self> type;
    };
    template<class D> struct Functor<Vector_dimension_tag,D> {
	    typedef CartesianDVectorBase::PV_dimension<Self> type;
    };
    template<class D> struct Functor<Orientation_of_vectors_tag,D,
      LA_vector::template Property<Has_determinant_of_iterator_to_vectors_tag>::value> {
	    typedef CartesianDVectorBase::Orientation_of_vectors<Self> type;
    };
    template<class D> struct Functor<Orientation_of_points_tag,D,
      LA_vector::template Property<Has_determinant_of_iterator_to_points_tag>::value> {
	    typedef CartesianDVectorBase::Orientation_of_points<Self> type;
    };
    template<class D> struct Functor<Scalar_product_tag,D,
      LA_vector::template Property<Has_dot_product_tag>::value> {
	    typedef CartesianDVectorBase::Scalar_product<Self> type;
    };
    template<class D> struct Functor<Squared_distance_to_origin_tag,D,
      LA_vector::template Property<Stores_squared_norm_tag>::value> {
	    typedef CartesianDVectorBase::Squared_distance_to_origin_stored<Self> type;
    };
    template<class D> struct Functor<Squared_distance_to_origin_tag,D,
      !LA_vector::template Property<Stores_squared_norm_tag>::value &&
      LA_vector::template Property<Has_dot_product_tag>::value> {
	    typedef CartesianDVectorBase::Squared_distance_to_origin_via_dotprod<Self> type;
    };

    CGAL_CONSTEXPR Cartesian_LA_base_d(){}
    CGAL_CONSTEXPR Cartesian_LA_base_d(int d):Dimension_base<Dim_>(d){}
};

} //namespace CGAL

#endif // CGAL_KERNEL_D_CARTESIAN_LA_BASE_H