73 lines
2.8 KiB
C
73 lines
2.8 KiB
C
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// Copyright (c) 2017
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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); you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; either version 3 of the License,
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// or (at your option) any later version.
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//
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// Licensees holding a valid commercial license may use this file in
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// accordance with the commercial license agreement provided with the software.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// $URL$
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// $Id$
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// SPDX-License-Identifier: LGPL-3.0+
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//
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// Author(s) : Sylvain Pion,
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// Mael Rouxel-Labbé
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#ifndef CGAL_EXACT_KERNEL_SELECTOR_H
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#define CGAL_EXACT_KERNEL_SELECTOR_H
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// This class uses the Kernel tag to automatically choose
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// whether Cartesian_converter or Homogeneous_converter should be used
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#include <CGAL/Simple_cartesian.h>
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#include <CGAL/Simple_homogeneous.h>
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#include <CGAL/internal/Exact_type_selector.h>
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#include <CGAL/representation_tags.h>
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#include <CGAL/Cartesian_converter.h>
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#include <CGAL/Homogeneous_converter.h>
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namespace CGAL {
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template <class CK, class Rep = typename CK::Rep_tag /* Cartesian_tag */>
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struct Exact_kernel_selector
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{
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typedef typename internal::Exact_field_selector<typename CK::RT>::Type Exact_nt;
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typedef typename internal::Exact_ring_selector <typename CK::RT>::Type Exact_rt;
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typedef Simple_cartesian<Exact_nt> Exact_kernel;
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typedef Simple_cartesian<Exact_rt> Exact_kernel_rt;
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typedef Cartesian_converter<CK, Exact_kernel> C2E;
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typedef Cartesian_converter<CK, Exact_kernel_rt> C2E_rt;
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typedef Cartesian_converter<Exact_kernel, CK> E2C;
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typedef Cartesian_converter<Exact_kernel_rt, CK> E2C_rt;
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};
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template <class CK>
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struct Exact_kernel_selector<CK, Homogeneous_tag>
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{
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typedef typename internal::Exact_ring_selector<typename CK::RT>::Type Exact_nt;
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typedef Simple_homogeneous<Exact_nt> Exact_kernel;
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typedef Exact_kernel Exact_kernel_rt;
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typedef Homogeneous_converter<CK, Exact_kernel> C2E;
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typedef C2E C2E_rt;
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typedef Homogeneous_converter<Exact_kernel, CK> E2C;
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typedef E2C E2C_rt;
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};
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} // namespace CGAL
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#endif // CGAL_EXACT_KERNEL_SELECTOR_H
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