text: // Copyright (c) 2016-2017 INRIA Nancy - Grand Est (France).
  // All rights reserved.
  
  namespace CGAL {
  
  /*!
  \ingroup PkgHyperbolicTriangulation2TraitsClasses
  
  The class `Hyperbolic_Delaunay_triangulation_traits_2` is designed as one of the
  default models for the traits concept `HyperbolicDelaunayTriangulationTraits_2`
  offered by %CGAL.
  
  \tparam K must be a model of `Kernel`.
  
  If `K` provides exact computations with square roots, then this class automatically
  provides exact constructions and predicates. The default value for `K` is
  `Exact_predicates_exact_constructions_kernel_with_sqrt`, which guarantees exact
  constructions of Delaunay triangulations and dual objects for input points with
  algebraic coordinates.
  
  \sa `Hyperbolic_Delaunay_triangulation_CK_traits_2`
  
  \cgalModels `HyperbolicDelaunayTriangulationTraits_2`
  */
  
  template< class K >
  class Hyperbolic_Delaunay_triangulation_traits_2 : public K {
  
  public:
  
    /// \name Types
    /// @{
      typedef typename K::FT                           FT;
      typedef typename K::Point_2                      Hyperbolic_point_2;
            typedef Hyperbolic_point_2                                                                       Hyperbolic_Voronoi_point_2;
      typedef unspecified_type                                                                         Circular_arc_2;
      typedef typename K::Segment_2                    Euclidean_segment_2;
            typedef boost::variant< Circular_arc_2,
                              Euclidean_segment_2 >           Hyperbolic_segment_2;
      typedef typename K::Triangle_2                   Hyperbolic_triangle_2;
    /// @}
  
  
    /// \name Creation
    /// @{
      /*!
        %Default constructor
      */
      Hyperbolic_Delaunay_triangulation_traits_2();
  
      /*!
        Copy constructor
      */
      Hyperbolic_Delaunay_triangulation_traits_2(const Hyperbolic_Delaunay_triangulation_traits_2 & other);
    /// @}
  
  
  };
  
  
  } // namespace CGAL
  