pqc/external/flint-2.4.3/fmpz_poly/hensel_lift_tree.c
2014-05-24 23:16:06 +02:00

49 lines
1.6 KiB
C

/*=============================================================================
This file is part of FLINT.
FLINT 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.
FLINT 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 FLINT; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
=============================================================================*/
/******************************************************************************
Copyright (C) 2011 Andy Novocin
Copyright (C) 2011 Sebastian Pancratz
******************************************************************************/
#include <gmp.h>
#include "flint.h"
#include "fmpz.h"
#include "fmpz_poly.h"
void fmpz_poly_hensel_lift_tree(slong *link, fmpz_poly_t *v, fmpz_poly_t *w,
fmpz_poly_t f, slong r, const fmpz_t p, slong e0, slong e1, slong inv)
{
fmpz_t p0, p1;
fmpz_init(p0);
fmpz_init(p1);
fmpz_pow_ui(p0, p, e0);
fmpz_pow_ui(p1, p, e1 - e0);
fmpz_poly_hensel_lift_tree_recursive(link, v, w, f, 2*r - 4, inv, p0, p1);
fmpz_clear(p0);
fmpz_clear(p1);
}