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

52 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) 2008, 2009 William Hart
Copyright (C) 2010 Fredrik Johansson
******************************************************************************/
#include <gmp.h>
#include "flint.h"
#include "fmpz.h"
#include "fmpz_vec.h"
void
_fmpz_factor_fit_length(fmpz_factor_t factor, slong len)
{
if (len > factor->alloc)
{
if (len < 2 * factor->alloc)
len = 2 * factor->alloc;
factor->p = (fmpz *) flint_realloc(factor->p, len * sizeof(fmpz));
factor->exp = flint_realloc(factor->exp, len * sizeof(slong));
if (len > factor->alloc)
{
flint_mpn_zero((mp_ptr)(factor->p + factor->alloc), len-factor->alloc);
flint_mpn_zero((mp_ptr)(factor->exp + factor->alloc), len-factor->alloc);
}
factor->alloc = len;
}
}