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

59 lines
1.9 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 "flint.h"
#include "nmod_poly.h"
void nmod_poly_factor_set(nmod_poly_factor_t res, const nmod_poly_factor_t fac)
{
if (res != fac)
{
if (fac->num == 0)
{
nmod_poly_factor_clear(res);
nmod_poly_factor_init(res);
}
else
{
slong i;
nmod_poly_factor_fit_length(res, fac->num);
for (i = 0; i < fac->num; i++)
{
nmod_poly_set(res->p + i, fac->p + i);
(res->p + i)->mod = (fac->p + i)->mod;
res->exp[i] = fac->exp[i];
}
for ( ; i < res->num; i++)
{
nmod_poly_zero(res->p + i);
res->exp[i] = 0;
}
res->num = fac->num;
}
}
}