mirror of https://github.com/CGAL/cgal
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Michael Hemmer
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// Copyright (c) 2008 Max-Planck-Institute Saarbruecken (Germany).
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// 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; version 2.1 of the License.
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// See the file LICENSE.LGPL distributed with CGAL.
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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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//
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// Author(s) : Michael Hemmer <mhemmer@uni-mainz.de>
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//
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// ============================================================================
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//
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// \brief provide class Arithmetic_kernel, a collection of number types.
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//
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//
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/*! \file CGAL/Arithmetic_kernel.h
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* \brief Declarations pertaining to CGAL::Arithmetic_kernel
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*/
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#ifndef CGAL_ARITHMETIC_KERNEL_H
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#define CGAL_ARITHMETIC_KERNEL_H
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#include <CGAL/basic.h>
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//#include <CGAL/Polynomial.h> // TODO: Not available yet.
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//#include <CGAL/Algebraic_real.h> // TODO: Not available yet.
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#ifdef CGAL_USE_LEDA
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#include <CGAL/leda_integer.h>
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#include <CGAL/leda_rational.h>
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#include <CGAL/leda_bigfloat.h>
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#include <CGAL/leda_real.h>
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#include <CGAL/leda_bigfloat_interval.h>
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#endif // CGAL_USE_LEDA
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#ifdef CGAL_USE_GMP
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#include <CGAL/Gmpz.h>
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#include <CGAL/Gmpzf.h>
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#include <CGAL/Gmpq.h>
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#ifdef CGAL_USE_GMPXX
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#include <CGAL/gmpxx.h>
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#endif // CGAL_USE_GMPXX
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#endif // CGAL_USE_GMP
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#ifdef CGAL_USE_CORE
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#include <CGAL/CORE_BigFloat.h>
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#include <CGAL/CORE_BigInt.h>
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#include <CGAL/CORE_BigRat.h>
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#include <CGAL/CORE_Expr.h>
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#endif // CGAL_USE_CORE
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#include <CGAL/Sqrt_extension.h>
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CGAL_BEGIN_NAMESPACE
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namespace CGALi {
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class Arithmetic_kernel_base{
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public:
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typedef CGAL::Null_tag Integer;
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typedef CGAL::Null_tag Rational;
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typedef CGAL::Null_tag Field_with_sqrt;
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typedef CGAL::Null_tag Field_with_kth_root;
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typedef CGAL::Null_tag Field_with_root_of;
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typedef CGAL::Null_tag Bigfloat;
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typedef CGAL::Null_tag Bigfloat_interval;
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};
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}
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#ifdef CGAL_USE_LEDA
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/*! \ingroup CGAL_Arithmetic_kernel
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* \brief The LEDA set of exact number types
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*/
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class LEDA_arithmetic_kernel : public CGALi::Arithmetic_kernel_base {
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public:
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//! exact integers
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typedef leda_integer Integer;
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//! exact float nummber
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typedef leda_bigfloat Exact_float_number;
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//! exact rationals, constructible from integers
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typedef leda_rational Rational;
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//! exact root expressions, constructible from integers and rationals
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typedef leda_real Field_with_sqrt;
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// undocumented
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typedef leda_bigfloat Bigfloat;
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typedef leda_bigfloat_interval Bigfloat_interval;
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};
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#endif // CGAL_USE_LEDA
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#ifdef CGAL_USE_CORE
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/*! \ingroup CGAL_Arithmetic_kernel
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* \brief The CORE set of exact number types
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*/
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class CORE_arithmetic_kernel : public CGALi::Arithmetic_kernel_base {
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public:
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//! exact integers
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typedef CORE::BigInt Integer;
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//! exact float nummber
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typedef CORE::BigRat Exact_float_number;
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//! exact rationals, constructible from integers
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typedef CORE::BigRat Rational;
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//! exact root expressions, constructible from integers and rationals
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typedef CORE::Expr Field_with_sqrt;
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// undocumented
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//typedef CORE::BigFloat Bigfloat;
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typedef CORE::BigFloat Bigfloat_interval;
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};
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#endif // CGAL_USE_CORE
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#ifdef CGAL_USE_GMP
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/*! \ingroup CGAL_Arithmetic_kernel
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* \brief The GMP set of exact number types
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*/
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class GMP_arithmetic_kernel : public CGALi::Arithmetic_kernel_base {
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public:
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//! exact integers
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typedef CGAL::Gmpz Integer;
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//! exact float nummber
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typedef CGAL::Gmpq Exact_float_number;
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//! exact rationals, constructible from integers
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typedef CGAL::Gmpq Rational;
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//! exact root expressions, constructible from integers and rationals
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typedef CGAL::Null_tag Field_with_sqrt;
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typedef CGAL::Null_tag Field_with_kth_root;
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typedef CGAL::Null_tag Field_with_root_of;
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};
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#endif // CGAL_USE_GMP
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#ifdef CGAL_USE_GMPXX
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/*! \ingroup CGAL_Arithmetic_kernel
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* \brief The GMP set of exact number types
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*/
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class GMPXX_arithmetic_kernel : public CGALi::Arithmetic_kernel_base {
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public:
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//! exact integers
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typedef mpz_class Integer;
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//! exact float nummber
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typedef mpq_class Exact_float_number;
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//! exact rationals, constructible from integers
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typedef mpq_class Rational;
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//! exact root expressions, constructible from integers and rationals
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typedef CGAL::Null_tag Field_with_sqrt;
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};
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#endif // CGAL_USE_GMPXX
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// Define a default Arithmetic_kernel
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#if defined(CGAL_USE_CORE)
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typedef CORE_arithmetic_kernel Arithmetic_kernel;
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#else
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#if defined(CGAL_USE_LEDA)
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typedef LEDA_arithmetic_kernel Arithmetic_kernel;
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#endif
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#endif
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#if defined(CGAL_USE_LEDA) || defined(CGAL_USE_CORE)
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#ifndef CGAL_HAVE_DEFAULT_ARITHMETIC_KERNEL
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#define CGAL_HAVE_DEFAULT_ARITHMETIC_KERNEL 1
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#endif
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#endif // defined(CGAL_USE_LEDA) || defined(CGAL_USE_CORE)
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// Macro to snap typedefs in Arithmetic_kernel
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#define CGAL_SNAP_ARITHMETIC_KERNEL_TYPEDEFS(AT) \
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typedef typename AT::Integer Integer; \
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typedef typename AT::Rational Rational; \
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typedef typename AT::Field_with_sqrt Field_with_sqrt;
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// end #define
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template< class NT > struct Get_arithmetic_kernel;
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#ifdef CGAL_USE_LEDA
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template <>
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struct Get_arithmetic_kernel<leda::integer> {
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typedef LEDA_arithmetic_kernel Arithmetic_kernel;
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};
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template <>
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struct Get_arithmetic_kernel<leda::rational>{
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typedef LEDA_arithmetic_kernel Arithmetic_kernel;
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};
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template <>
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struct Get_arithmetic_kernel<leda::real>{
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typedef LEDA_arithmetic_kernel Arithmetic_kernel;
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};
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template <>
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struct Get_arithmetic_kernel<leda::bigfloat>{
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typedef LEDA_arithmetic_kernel Arithmetic_kernel;
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};
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template <>
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struct Get_arithmetic_kernel<CGAL::leda_bigfloat_interval>{
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typedef LEDA_arithmetic_kernel Arithmetic_kernel;
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};
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#endif //CGAL_USE_LEDA
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#ifdef CGAL_USE_CORE
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template <>
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struct Get_arithmetic_kernel<CORE::BigInt>{
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typedef CORE_arithmetic_kernel Arithmetic_kernel;
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};
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template <>
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struct Get_arithmetic_kernel<CORE::BigRat>{
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typedef CORE_arithmetic_kernel Arithmetic_kernel;
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};
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template <>
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struct Get_arithmetic_kernel<CORE::Expr>{
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typedef CORE_arithmetic_kernel Arithmetic_kernel;
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};
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template <>
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struct Get_arithmetic_kernel<CORE::BigFloat>{
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typedef CORE_arithmetic_kernel Arithmetic_kernel;
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};
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#endif //CGAL_USE_CORE
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template <class COEFF, class ROOT>
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struct Get_arithmetic_kernel<Sqrt_extension<COEFF,ROOT> >{
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typedef Get_arithmetic_kernel<COEFF> GET;
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typedef typename GET::Arithmetic_kernel Arithmetic_kernel;
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};
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CGAL_END_NAMESPACE
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#endif // CGAL_ARITHMETIC_KERNEL_H
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// EOF
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