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

47 lines
1.5 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, 2010 Sebastian Pancratz
******************************************************************************/
#include <gmp.h>
#include "flint.h"
#include "fmpz.h"
#include "fmpz_mod_poly.h"
void fmpz_mod_poly_zero_coeffs(fmpz_mod_poly_t poly, slong i, slong j)
{
if (i < 0)
i = 0;
if (j > poly->length)
j = poly->length;
_fmpz_vec_zero(poly->coeffs + i, j - i);
if (j == poly->length)
{
_fmpz_mod_poly_set_length(poly, i);
_fmpz_mod_poly_normalise(poly);
}
}