mirror of https://github.com/CGAL/cgal
148 lines
4.4 KiB
C++
148 lines
4.4 KiB
C++
// Copyright (c) 2006-2008 Inria Lorraine (France). 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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//
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// Author: Luis Peñaranda <luis.penaranda@gmx.com>
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#ifndef CGAL_RS_ALGEBRAIC_1_H
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#define CGAL_RS_ALGEBRAIC_1_H
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#include <CGAL/Gmpz.h>
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#include <CGAL/Gmpq.h>
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#include <CGAL/Gmpfr.h>
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#include <CGAL/Gmpfi.h>
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#include <boost/operators.hpp>
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namespace CGAL{
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class RS_polynomial_1;
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class Algebraic_1;
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bool operator<(const Algebraic_1&,const Algebraic_1&);
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bool operator==(const Algebraic_1&,const Algebraic_1&);
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// representation of algebraic numbers
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class Algebraic_1_rep{
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public:
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mutable mpfi_t _mpfi;
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RS_polynomial_1 *_poly;
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int _nr;
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int _mult;
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mpfi_ptr _prev,_next;
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mutable Sign _lefteval;
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Algebraic_1_rep():
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_poly(NULL),_nr(-1),_mult(-1),
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_prev(NULL),_next(NULL),_lefteval(ZERO){}
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~Algebraic_1_rep(){}
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private:
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Algebraic_1_rep(const Algebraic_1_rep&);
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Algebraic_1_rep& operator=(const Algebraic_1_rep&);
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};
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// The class of the algebraic numbers.
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class Algebraic_1 : Handle_for<Algebraic_1_rep>,
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boost::totally_ordered1<Algebraic_1>{
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typedef Handle_for<Algebraic_1_rep> Base;
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public:
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Algebraic_1(const Algebraic_1&,mpfr_prec_t,mpfr_prec_t);
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Algebraic_1();
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Algebraic_1(int);
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Algebraic_1(unsigned);
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Algebraic_1(long);
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Algebraic_1(unsigned long);
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Algebraic_1(double);
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Algebraic_1(mpz_srcptr);
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Algebraic_1(mpq_srcptr);
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Algebraic_1(mpfr_srcptr);
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Algebraic_1(mpfi_srcptr);
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Algebraic_1(const Gmpz&);
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Algebraic_1(const Gmpq&);
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Algebraic_1(const Gmpfr&);
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// the only interesting constructor
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Algebraic_1(mpfi_srcptr,
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const RS_polynomial_1&,
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int,
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int,
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mpfi_ptr,
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mpfi_ptr);
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// the another interesting variant
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Algebraic_1(mpfi_srcptr,
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const RS_polynomial_1&,
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int,
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int,
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mpfi_ptr,
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mpfi_ptr,
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CGAL::Sign);
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// functions related to the member data
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mpfi_srcptr mpfi()const;
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mpfi_ptr mpfi();
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Gmpfi interval()const;
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Gmpfr inf()const;
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Gmpfr sup()const;
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const RS_polynomial_1& pol()const;
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int nr()const;
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int mult()const;
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void set_mpfi(mpfi_srcptr);
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void set_mpfi_ptr(mpfi_srcptr);
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void clear_pol();
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void set_pol(const RS_polynomial_1 &);
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void set_nr(int);
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void set_mult(int);
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void set_prec(mp_prec_t);
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void set_prev(mpfi_ptr);
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void set_next(mpfi_ptr);
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void set_lefteval(Sign)const;
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mp_prec_t get_prec()const;
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mpfi_ptr prev()const;
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mpfi_ptr next()const;
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Sign lefteval()const;
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mpfr_srcptr left()const;
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mpfr_srcptr right()const;
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bool is_consistent()const;
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bool is_point()const; // are endpoints equal?
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bool overlaps(const Algebraic_1&)const;
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bool contains(int n)const;
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bool contains(mpfr_srcptr)const;
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bool contains(const Gmpz&)const;
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Algebraic_1 operator+()const;
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Algebraic_1 operator-()const;
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bool is_valid()const;
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bool is_finite()const;
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/*template<class>*/ double to_double()const;
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std::pair<double,double> to_interval() const;
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Algebraic_1 sqrt()const;
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}; // class Algebraic_1
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} // namespace CGAL
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#include <CGAL/RS/algebraic_1_constructors.h>
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#include <CGAL/RS/algebraic_1_operators.h>
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#include <CGAL/RS/algebraic_1_member.h> // other member functions
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#include <CGAL/RS/algebraic_1_comparisons.h>
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#include <CGAL/RS/algebraic_1_other.h> // related non-member functions
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#include <CGAL/RS/algebraic_1_real_embeddable.h>
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#endif // CGAL_RS_ALGEBRAIC_1_H
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