pqc/external/flint-2.4.3/fmpz_mod_poly/scalar_mul_fmpz.c

50 lines
1.8 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 Sebastian Pancratz
******************************************************************************/
#include <gmp.h>
#include "flint.h"
#include "fmpz.h"
#include "fmpz_poly.h"
#include "fmpz_mod_poly.h"
void _fmpz_mod_poly_scalar_mul_fmpz(fmpz *res, const fmpz *poly, slong len,
const fmpz_t x, const fmpz_t p)
{
_fmpz_vec_scalar_mul_fmpz(res, poly, len, x);
_fmpz_vec_scalar_mod_fmpz(res, res, len, p);
}
void fmpz_mod_poly_scalar_mul_fmpz(fmpz_mod_poly_t res,
const fmpz_mod_poly_t poly, const fmpz_t x)
{
fmpz_mod_poly_fit_length(res, poly->length);
_fmpz_mod_poly_scalar_mul_fmpz(res->coeffs,
poly->coeffs, poly->length, x, &(poly->p));
_fmpz_mod_poly_set_length(res, poly->length);
_fmpz_mod_poly_normalise(res);
}