Tmul.hpp

/*
    This file is part of the FAAST library.

    Copyright (c) 2009 Luca De Feo and Éric Schost.

    The most recent version of FAAST is available at http://www.lix.polytechnique.fr/~defeo/FAAST

    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License
    as published by the Free Software Foundation; either version 2
    of the License, or (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; see file COPYING. If not, write to the Free Software
    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
*/

/* Courtesy of E. Schost */

#include <NTL/GF2X.h>
#include <NTL/lzz_pX.h>
#include <NTL/ZZ_pX.h>

namespace NTL_NAMESPACE {
    void TransMulMod(GF2X& x, const GF2X& a, const GF2XTransMultiplier& B, const GF2XModulus& F);

    inline void TransMulMod(ZZ_pX& x, const ZZ_pX& a,
    const ZZ_pXMultiplier& B, const ZZ_pXModulus& F){
      x = 0;
      vec_ZZ_p X;
      UpdateMap(X, a.rep, B, F);
      for (long i = 0; i < X.length(); i++)
        SetCoeff(x,i,X[i]);
      x.normalize();
    }

    inline void TransMulMod(zz_pX& x, const zz_pX& a,
    const zz_pXMultiplier& B, const zz_pXModulus& F){
      x = 0;
      vec_zz_p X;
      UpdateMap(X, a.rep, B, F);
      for (long i = 0; i < X.length(); i++)
        SetCoeff(x,i,X[i]);
      x.normalize();
    }
}