70 lines
2.2 KiB
C
70 lines
2.2 KiB
C
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// Copyright (c) 2008 Max-Planck-Institute Saarbruecken (Germany)
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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: https://github.com/CGAL/cgal/blob/v5.1/Polynomial/include/CGAL/Polynomial/Modular_traits.h $
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// $Id: Modular_traits.h 0779373 2020-03-26T13:31:46+01:00 Sébastien Loriot
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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) : Arno Eigenwillig <arno@mpi-inf.mpg.de>
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// Michael Hemmer <hemmer@informatik.uni-mainz.de>
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//
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// ============================================================================
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// TODO: The comments are all original EXACUS comments and aren't adapted. So
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// they may be wrong now.
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// NOT INTRODUCED YET
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#ifndef CGAL_POLYNOMIAL_MODULAR_TRAITS_TRAITS_H
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#define CGAL_POLYNOMIAL_MODULAR_TRAITS_TRAITS_H
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#include <CGAL/basic.h>
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#include <CGAL/Modular_traits.h>
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namespace CGAL {
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/*! \ingroup CGAL_Polynomial
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* \ingroup CGAL_Modular_traits_spec
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* \brief Specialization of Modular_traits for CGAL::Polynomial.
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*
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* CGAL::Modular_traits::Modular_image maps the coefficients of a polynomial
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* to their Modular_image and returns the resulting polynomial.
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*/
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template< class COEFF >
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class Modular_traits< Polynomial<COEFF> > {
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private:
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typedef Modular_traits<COEFF> Mtr;
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public:
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typedef Polynomial<COEFF> NT;
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typedef Modular_traits<NT> Self;
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typedef typename Mtr::Is_modularizable Is_modularizable;
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typedef Polynomial<typename Mtr::Residue_type> Residue_type;
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struct Modular_image{
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Residue_type operator()(const NT& p){
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std::vector<typename Mtr::Residue_type> V;
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typename Mtr::Modular_image modular_image;
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for(int i=0; i<=p.degree();i++)
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V.push_back(modular_image(p[i]));
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return Residue_type(V.begin(),V.end());
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}
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};
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struct Modular_image_representative{
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NT operator()(const Residue_type& p) const {
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std::vector<COEFF> V;
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typename Mtr::Modular_image_representative modular_image_representative;
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for(int i=0; i<=p.degree();i++)
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V.push_back(modular_image_representative(p[i]));
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return NT(V.begin(),V.end());
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}
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};
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};
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} //namespace CGAL
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#endif // CGAL_POLYNOMIAL_MODULAR_TRAITS_TRAITS_H
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