mirror of https://github.com/CGAL/cgal
86 lines
2.6 KiB
C++
86 lines
2.6 KiB
C++
// Copyright (c) 2003
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// Utrecht University (The Netherlands),
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// ETH Zurich (Switzerland),
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// INRIA Sophia-Antipolis (France),
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// Max-Planck-Institute Saarbruecken (Germany),
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// and Tel-Aviv University (Israel). All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org)
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//
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// $URL$
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// $Id$
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// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
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//
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//
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// Author(s) : Menelaos Karavelas, Sylvain Pion
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#ifndef CGAL_EXACT_PREDICATES_EXACT_CONSTRUCTIONS_KERNEL_H
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#define CGAL_EXACT_PREDICATES_EXACT_CONSTRUCTIONS_KERNEL_H
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#include <CGAL/Simple_cartesian.h>
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#include <CGAL/Filtered_kernel.h>
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#include <CGAL/Lazy_exact_nt.h>
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#include <CGAL/Triangulation_structural_filtering_traits.h>
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#include <CGAL/Number_types/internal/Exact_type_selector.h>
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#ifndef CGAL_DONT_USE_LAZY_KERNEL
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# include <CGAL/Lazy_kernel.h>
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#endif
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namespace CGAL {
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constexpr bool epeck_use_static_filter =
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#ifdef CGAL_NO_STATIC_FILTERS
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false;
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#else
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true;
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#endif
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// Epeck_ft is either Gmpq, or leda_rational, or Quotient<MP_float>
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using Epeck_ft = internal::Exact_field_selector<double>::Type;
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// The following are redefined kernels instead of simple typedefs in order to shorten
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// template name length (for error messages, mangling...).
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#ifdef CGAL_DONT_USE_LAZY_KERNEL
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// Equivalent to Filtered_kernel<Simple_cartesian<Lazy_exact_nt<Epeck_ft> > >
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class Epeck
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: public Filtered_kernel_adaptor<
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Type_equality_wrapper< Simple_cartesian<Lazy_exact_nt<Epeck_ft> >::Base<Epeck>::Type, Epeck >,
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epeck_use_static_filter >
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{}; // end class Epeck
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#else // no CGAL_DONT_USE_LAZY_KERNEL
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namespace internal {
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template <typename FT>
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using Epeck_sc = Simple_cartesian<FT>;
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using Epeck_interval = Simple_cartesian<Interval_nt_advanced>;
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template <typename FT>
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using Epeck_converter = Cartesian_converter<Epeck_sc<FT>, Epeck_interval>;
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template <typename FT, typename Kernel>
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using Epeck_lazy_base = Lazy_kernel_base<Epeck_sc<FT>, Epeck_interval, Epeck_converter<FT>, Kernel>;
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template <typename FT, typename Kernel>
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using Epeck_lazy_base_with_type_equality = Type_equality_wrapper<Epeck_lazy_base<FT, Kernel>, Kernel>;
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} // namespace internal
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// Equivalent to Lazy_kernel<Simple_cartesian<Epeck_ft> >
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class Epeck : public internal::Epeck_lazy_base_with_type_equality<Epeck_ft, Epeck> {};
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#endif // no CGAL_DONT_USE_LAZY_KERNEL
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using Exact_predicates_exact_constructions_kernel = Epeck;
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template <>
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struct Triangulation_structural_filtering_traits<Epeck> {
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using Use_structural_filtering_tag = Tag_true;
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};
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} //namespace CGAL
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#endif // CGAL_EXACT_PREDICATES_EXACT_CONSTRUCTIONS_KERNEL_H
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