73 lines
2.5 KiB
C
73 lines
2.5 KiB
C
/*=============================================================================
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This file is part of FLINT.
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FLINT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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FLINT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with FLINT; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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=============================================================================*/
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/******************************************************************************
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Copyright (C) 2011 Andy Novocin
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Copyright (C) 2011 Sebastian Pancratz
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******************************************************************************/
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#include <gmp.h>
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#include "flint.h"
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#include "fmpz.h"
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#include "fmpz_poly.h"
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#include "fmpz_mod_poly.h"
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void _fmpz_poly_hensel_lift(fmpz *G, fmpz *H, fmpz *A, fmpz *B,
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const fmpz *f, slong lenF,
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const fmpz *g, slong lenG, const fmpz *h, slong lenH,
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const fmpz *a, slong lenA, const fmpz *b, slong lenB,
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const fmpz_t p, const fmpz_t p1)
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{
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_fmpz_poly_hensel_lift_without_inverse(G, H, f, lenF, g, lenG, h, lenH,
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a, lenA, b, lenB, p, p1);
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_fmpz_poly_hensel_lift_only_inverse(A, B, G, lenG, H, lenH,
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a, lenA, b, lenB, p, p1);
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}
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void fmpz_poly_hensel_lift(fmpz_poly_t G, fmpz_poly_t H,
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fmpz_poly_t A, fmpz_poly_t B,
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const fmpz_poly_t f,
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const fmpz_poly_t g, const fmpz_poly_t h,
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const fmpz_poly_t a, const fmpz_poly_t b,
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const fmpz_t p, const fmpz_t p1)
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{
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const slong lenG = g->length;
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const slong lenH = h->length;
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fmpz_poly_fit_length(G, lenG);
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fmpz_poly_fit_length(H, lenH);
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fmpz_poly_fit_length(A, lenH - 1);
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fmpz_poly_fit_length(B, lenG - 1);
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_fmpz_poly_hensel_lift(G->coeffs, H->coeffs, A->coeffs, B->coeffs,
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f->coeffs, f->length, g->coeffs, g->length, h->coeffs, h->length,
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a->coeffs, a->length, b->coeffs, b->length, p, p1);
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_fmpz_poly_set_length(G, lenG);
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_fmpz_poly_set_length(H, lenH);
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_fmpz_poly_set_length(A, lenH - 1);
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_fmpz_poly_set_length(B, lenG - 1);
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_fmpz_poly_normalise(A);
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_fmpz_poly_normalise(B);
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}
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