pqc/external/flint-2.4.3/fmpz_poly/evaluate_fmpz.c

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2014-05-18 22:03:37 +00:00
/*=============================================================================
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) 2010 Sebastian Pancratz
******************************************************************************/
#include <gmp.h>
#include "flint.h"
#include "fmpz.h"
#include "fmpz_poly.h"
void
_fmpz_poly_evaluate_fmpz(fmpz_t res, const fmpz * f, slong len, const fmpz_t a)
{
if (len <= 50)
_fmpz_poly_evaluate_horner_fmpz(res, f, len, a);
else
_fmpz_poly_evaluate_divconquer_fmpz(res, f, len, a);
}
void
fmpz_poly_evaluate_fmpz(fmpz_t res, const fmpz_poly_t f, const fmpz_t a)
{
if (res == a)
{
fmpz_t t;
fmpz_init(t);
_fmpz_poly_evaluate_fmpz(t, f->coeffs, f->length, a);
fmpz_swap(res, t);
fmpz_clear(t);
}
else
_fmpz_poly_evaluate_fmpz(res, f->coeffs, f->length, a);
}