pqc/external/flint-2.4.3/qsieve/ll_poly_init.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) 2006, 2011 William Hart
******************************************************************************/
#include <gmp.h>
#include "flint.h"
#include "ulong_extras.h"
#include "qsieve.h"
mp_limb_t qsieve_ll_poly_init(qs_t qs_inf)
{
ulong num_primes = qs_inf->num_primes;
ulong s = qs_inf->s; /* number of prime factors in A coeff */
mp_limb_t ** A_inv2B;
slong i;
qs_inf->B_terms = flint_malloc(4*s*sizeof(mp_limb_t));
qs_inf->A_ind = qs_inf->B_terms + s;
qs_inf->A_modp = qs_inf->A_ind + s;
qs_inf->inv_p2 = qs_inf->A_modp + s;
qs_inf->A_inv2B = flint_malloc(s*sizeof(mp_limb_t *));
qs_inf->A_inv = flint_malloc(3*num_primes*sizeof(mp_limb_t));
qs_inf->soln1 = qs_inf->A_inv + num_primes;
qs_inf->soln2 = qs_inf->soln1 + num_primes;
A_inv2B = qs_inf->A_inv2B;
A_inv2B[0] = flint_malloc(num_primes*s*sizeof(mp_limb_t));
for (i = 1; i < s; i++)
A_inv2B[i] = A_inv2B[i - 1] + num_primes;
return 0;
}