pqc/external/flint-2.4.3/nmod_poly_mat/test/t-pow.c

126 lines
3.4 KiB
C
Raw Normal View History

2014-05-18 22:03:37 +00:00
/*=============================================================================
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
******************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include "flint.h"
#include "nmod_mat.h"
#include "nmod_poly.h"
#include "nmod_poly_mat.h"
int
main(void)
{
slong i;
FLINT_TEST_INIT(state);
flint_printf("pow....");
fflush(stdout);
for (i = 0; i < 100 * flint_test_multiplier(); i++)
{
nmod_poly_mat_t A, B, C;
slong m, j, exp, deg;
mp_limb_t mod;
mod = n_randtest_prime(state, 0);
m = n_randint(state, 6);
deg = 1 + n_randint(state, 6);
exp = n_randint(state, 20);
nmod_poly_mat_init(A, m, m, mod);
nmod_poly_mat_init(B, m, m, mod);
nmod_poly_mat_init(C, m, m, mod);
nmod_poly_mat_randtest(A, state, deg);
nmod_poly_mat_pow(B, A, exp);
nmod_poly_mat_one(C);
for (j = 0; j < exp; j++)
nmod_poly_mat_mul(C, C, A);
if (!nmod_poly_mat_equal(C, B))
{
flint_printf("FAIL:\n");
flint_printf("exp = %wd\n", exp);
flint_printf("A:\n");
nmod_poly_mat_print(A, "x");
flint_printf("B:\n");
nmod_poly_mat_print(B, "x");
flint_printf("C:\n");
nmod_poly_mat_print(C, "x");
flint_printf("\n");
abort();
}
nmod_poly_mat_clear(A);
nmod_poly_mat_clear(B);
nmod_poly_mat_clear(C);
}
/* Check aliasing B and A */
for (i = 0; i < 100 * flint_test_multiplier(); i++)
{
nmod_poly_mat_t A, B;
slong m, exp, deg;
mp_limb_t mod;
mod = n_randtest_prime(state, 0);
m = n_randint(state, 6);
deg = 1 + n_randint(state, 6);
exp = n_randint(state, 20);
nmod_poly_mat_init(A, m, m, mod);
nmod_poly_mat_init(B, m, m, mod);
nmod_poly_mat_randtest(A, state, deg);
nmod_poly_mat_pow(B, A, exp);
nmod_poly_mat_pow(A, A, exp);
if (!nmod_poly_mat_equal(A, B))
{
flint_printf("FAIL (aliasing)\n");
flint_printf("exp = %wd\n", exp);
flint_printf("A:\n");
nmod_poly_mat_print(A, "x");
flint_printf("B:\n");
nmod_poly_mat_print(B, "x");
flint_printf("\n");
abort();
}
nmod_poly_mat_clear(A);
nmod_poly_mat_clear(B);
}
FLINT_TEST_CLEANUP(state);
flint_printf("PASS\n");
return 0;
}