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

203 lines
6.5 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
******************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <gmp.h>
#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....");
fflush(stdout);
for (i = 0; i < 1000; i++)
{
fmpz_mod_poly_t a, b, c, d, e;
fmpz_t p;
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(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_compose_mod(d, a, b, c);
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_mod_poly_clear(c);
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, d;
fmpz_t p;
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(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_compose_mod(d, a, b, c);
fmpz_mod_poly_compose_mod(a, a, b, c);
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_mod_poly_clear(c);
fmpz_mod_poly_clear(d);
}
/* Test aliasing of res and b */
for (i = 0; i < 1000; i++)
{
fmpz_mod_poly_t a, b, c, d;
fmpz_t p;
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(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_compose_mod(d, a, b, c);
fmpz_mod_poly_compose_mod(b, a, b, c);
if (!fmpz_mod_poly_equal(d, b))
{
flint_printf("FAIL (aliasing b)\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_mod_poly_clear(c);
fmpz_mod_poly_clear(d);
}
/* Test aliasing of res and c */
for (i = 0; i < 1000; i++)
{
fmpz_mod_poly_t a, b, c, d;
fmpz_t p;
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(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_compose_mod(d, a, b, c);
fmpz_mod_poly_compose_mod(c, a, b, c);
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_mod_poly_clear(c);
fmpz_mod_poly_clear(d);
}
FLINT_TEST_CLEANUP(state);
flint_printf("PASS\n");
return 0;
}