254 lines
8.5 KiB
C
254 lines
8.5 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 Fredrik Johansson
|
|
Copyright (C) 2012 Lina Kulakova
|
|
Copyright (C) 2013 Martin Lee
|
|
|
|
******************************************************************************/
|
|
|
|
#undef ulong
|
|
#define ulong ulongxx/* interferes with system includes */
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
|
|
#undef ulong
|
|
|
|
#include <gmp.h>
|
|
|
|
#define ulong mp_limb_t
|
|
|
|
#include "flint.h"
|
|
#include "fmpz_mod_poly.h"
|
|
#include "ulong_extras.h"
|
|
|
|
int
|
|
main(void)
|
|
{
|
|
int i;
|
|
FLINT_TEST_INIT(state);
|
|
|
|
flint_printf("compose_mod_brent_kung_precomp_preinv....");
|
|
fflush(stdout);
|
|
|
|
/* no aliasing */
|
|
for (i = 0; i < 2000; i++)
|
|
{
|
|
fmpz_mod_poly_t a, b, c, cinv, d, e;
|
|
fmpz_t p;
|
|
fmpz_mat_t B;
|
|
|
|
fmpz_init(p);
|
|
fmpz_set_ui(p, n_randtest_prime(state, 0));
|
|
|
|
fmpz_mod_poly_init(a, p);
|
|
fmpz_mod_poly_init(b, p);
|
|
fmpz_mod_poly_init(c, p);
|
|
fmpz_mod_poly_init(cinv, p);
|
|
fmpz_mod_poly_init(d, p);
|
|
fmpz_mod_poly_init(e, p);
|
|
|
|
fmpz_mod_poly_randtest(a, state, n_randint(state, 20) + 1);
|
|
fmpz_mod_poly_randtest(b, state, n_randint(state, 20) + 1);
|
|
fmpz_mod_poly_randtest_not_zero(c, state, n_randint(state, 20) + 1);
|
|
|
|
fmpz_mod_poly_reverse (cinv, c, c->length);
|
|
fmpz_mod_poly_inv_series_newton (cinv, cinv, c->length);
|
|
fmpz_mat_init (B, n_sqrt (c->length-1)+1, c->length-1);
|
|
fmpz_mod_poly_precompute_matrix (B, b, c, cinv);
|
|
|
|
fmpz_mod_poly_rem(a, a, c);
|
|
fmpz_mod_poly_compose_mod_brent_kung_precomp_preinv(d, a, B, c, cinv);
|
|
fmpz_mod_poly_compose(e, a, b);
|
|
fmpz_mod_poly_rem(e, e, c);
|
|
|
|
if (!fmpz_mod_poly_equal(d, e))
|
|
{
|
|
flint_printf("FAIL (composition):\n");
|
|
flint_printf("a:\n"); fmpz_mod_poly_print(a); flint_printf("\n");
|
|
flint_printf("b:\n"); fmpz_mod_poly_print(b); flint_printf("\n");
|
|
flint_printf("c:\n"); fmpz_mod_poly_print(c); flint_printf("\n");
|
|
flint_printf("d:\n"); fmpz_mod_poly_print(d); flint_printf("\n");
|
|
flint_printf("e:\n"); fmpz_mod_poly_print(e); flint_printf("\n");
|
|
abort();
|
|
}
|
|
|
|
fmpz_clear(p);
|
|
fmpz_mod_poly_clear(a);
|
|
fmpz_mod_poly_clear(b);
|
|
fmpz_mat_clear (B);
|
|
fmpz_mod_poly_clear(c);
|
|
fmpz_mod_poly_clear(cinv);
|
|
fmpz_mod_poly_clear(d);
|
|
fmpz_mod_poly_clear(e);
|
|
}
|
|
|
|
/* Test aliasing of res and a */
|
|
for (i = 0; i < 1000; i++)
|
|
{
|
|
fmpz_mod_poly_t a, b, c, cinv, d;
|
|
fmpz_t p;
|
|
fmpz_mat_t B;
|
|
|
|
fmpz_init(p);
|
|
fmpz_set_ui(p, n_randtest_prime(state, 0));
|
|
|
|
fmpz_mod_poly_init(a, p);
|
|
fmpz_mod_poly_init(b, p);
|
|
fmpz_mod_poly_init(c, p);
|
|
fmpz_mod_poly_init(cinv, p);
|
|
fmpz_mod_poly_init(d, p);
|
|
|
|
fmpz_mod_poly_randtest(a, state, n_randint(state, 20) + 1);
|
|
fmpz_mod_poly_randtest(b, state, n_randint(state, 20) + 1);
|
|
fmpz_mod_poly_randtest_not_zero(c, state, n_randint(state, 20) + 1);
|
|
|
|
fmpz_mod_poly_reverse (cinv, c, c->length);
|
|
fmpz_mod_poly_inv_series_newton (cinv, cinv, c->length);
|
|
fmpz_mat_init (B, n_sqrt (c->length-1)+1, c->length-1);
|
|
fmpz_mod_poly_precompute_matrix (B, b, c, cinv);
|
|
|
|
fmpz_mod_poly_rem(a, a, c);
|
|
fmpz_mod_poly_compose_mod_brent_kung_precomp_preinv(d, a, B, c, cinv);
|
|
fmpz_mod_poly_compose_mod_brent_kung_precomp_preinv(a, a, B, c, cinv);
|
|
|
|
if (!fmpz_mod_poly_equal(d, a))
|
|
{
|
|
flint_printf("FAIL (aliasing a):\n");
|
|
flint_printf("a:\n"); fmpz_mod_poly_print(a); flint_printf("\n");
|
|
flint_printf("b:\n"); fmpz_mod_poly_print(b); flint_printf("\n");
|
|
flint_printf("c:\n"); fmpz_mod_poly_print(c); flint_printf("\n");
|
|
flint_printf("d:\n"); fmpz_mod_poly_print(d); flint_printf("\n");
|
|
abort();
|
|
}
|
|
|
|
fmpz_clear(p);
|
|
fmpz_mod_poly_clear(a);
|
|
fmpz_mod_poly_clear(b);
|
|
fmpz_mat_clear (B);
|
|
fmpz_mod_poly_clear(c);
|
|
fmpz_mod_poly_clear(cinv);
|
|
fmpz_mod_poly_clear(d);
|
|
}
|
|
|
|
/* Test aliasing of res and c */
|
|
for (i = 0; i < 1000; i++)
|
|
{
|
|
fmpz_mod_poly_t a, b, c, cinv, d;
|
|
fmpz_t p;
|
|
fmpz_mat_t B;
|
|
|
|
fmpz_init(p);
|
|
fmpz_set_ui(p, n_randtest_prime(state, 0));
|
|
|
|
fmpz_mod_poly_init(a, p);
|
|
fmpz_mod_poly_init(b, p);
|
|
fmpz_mod_poly_init(c, p);
|
|
fmpz_mod_poly_init(cinv, p);
|
|
fmpz_mod_poly_init(d, p);
|
|
|
|
fmpz_mod_poly_randtest(a, state, n_randint(state, 20) + 1);
|
|
fmpz_mod_poly_randtest(b, state, n_randint(state, 20) + 1);
|
|
fmpz_mod_poly_randtest_not_zero(c, state, n_randint(state, 20) + 1);
|
|
|
|
fmpz_mod_poly_reverse (cinv, c, c->length);
|
|
fmpz_mod_poly_inv_series_newton (cinv, cinv, c->length);
|
|
fmpz_mat_init (B, n_sqrt (c->length-1)+1, c->length-1);
|
|
fmpz_mod_poly_precompute_matrix (B, b, c, cinv);
|
|
|
|
fmpz_mod_poly_rem(a, a, c);
|
|
fmpz_mod_poly_compose_mod_brent_kung_precomp_preinv(d, a, B, c, cinv);
|
|
fmpz_mod_poly_compose_mod_brent_kung_precomp_preinv(c, a, B, c, cinv);
|
|
|
|
if (!fmpz_mod_poly_equal(d, c))
|
|
{
|
|
flint_printf("FAIL (aliasing c)\n");
|
|
flint_printf("a:\n"); fmpz_mod_poly_print(a); flint_printf("\n");
|
|
flint_printf("b:\n"); fmpz_mod_poly_print(b); flint_printf("\n");
|
|
flint_printf("c:\n"); fmpz_mod_poly_print(c); flint_printf("\n");
|
|
flint_printf("d:\n"); fmpz_mod_poly_print(d); flint_printf("\n");
|
|
abort();
|
|
}
|
|
|
|
fmpz_clear(p);
|
|
fmpz_mod_poly_clear(a);
|
|
fmpz_mod_poly_clear(b);
|
|
fmpz_mat_clear (B);
|
|
fmpz_mod_poly_clear(c);
|
|
fmpz_mod_poly_clear(cinv);
|
|
fmpz_mod_poly_clear(d);
|
|
}
|
|
|
|
/* Test aliasing of res and cinv */
|
|
for (i = 0; i < 1000; i++)
|
|
{
|
|
fmpz_mod_poly_t a, b, c, cinv, d;
|
|
fmpz_t p;
|
|
fmpz_mat_t B;
|
|
|
|
fmpz_init(p);
|
|
fmpz_set_ui(p, n_randtest_prime(state, 0));
|
|
|
|
fmpz_mod_poly_init(a, p);
|
|
fmpz_mod_poly_init(b, p);
|
|
fmpz_mod_poly_init(c, p);
|
|
fmpz_mod_poly_init(cinv, p);
|
|
fmpz_mod_poly_init(d, p);
|
|
|
|
fmpz_mod_poly_randtest(a, state, n_randint(state, 20) + 1);
|
|
fmpz_mod_poly_randtest(b, state, n_randint(state, 20) + 1);
|
|
fmpz_mod_poly_randtest_not_zero(c, state, n_randint(state, 20) + 1);
|
|
|
|
fmpz_mod_poly_reverse (cinv, c, c->length);
|
|
fmpz_mod_poly_inv_series_newton (cinv, cinv, c->length);
|
|
fmpz_mat_init (B, n_sqrt (c->length-1)+1, c->length-1);
|
|
fmpz_mod_poly_precompute_matrix (B, b, c, cinv);
|
|
|
|
fmpz_mod_poly_rem(a, a, c);
|
|
fmpz_mod_poly_compose_mod_brent_kung_precomp_preinv(d, a, B, c, cinv);
|
|
fmpz_mod_poly_compose_mod_brent_kung_precomp_preinv(cinv, a, B, c, cinv);
|
|
|
|
if (!fmpz_mod_poly_equal(d, cinv))
|
|
{
|
|
flint_printf("FAIL (aliasing c)\n");
|
|
flint_printf("a:\n"); fmpz_mod_poly_print(a); flint_printf("\n");
|
|
flint_printf("b:\n"); fmpz_mod_poly_print(b); flint_printf("\n");
|
|
flint_printf("c:\n"); fmpz_mod_poly_print(c); flint_printf("\n");
|
|
flint_printf("d:\n"); fmpz_mod_poly_print(d); flint_printf("\n");
|
|
abort();
|
|
}
|
|
|
|
fmpz_clear(p);
|
|
fmpz_mod_poly_clear(a);
|
|
fmpz_mod_poly_clear(b);
|
|
fmpz_mat_clear (B);
|
|
fmpz_mod_poly_clear(c);
|
|
fmpz_mod_poly_clear(cinv);
|
|
fmpz_mod_poly_clear(d);
|
|
}
|
|
|
|
FLINT_TEST_CLEANUP(state);
|
|
|
|
flint_printf("PASS\n");
|
|
return 0;
|
|
}
|