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

138 lines
3.9 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) 2009 William Hart
******************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <gmp.h>
#include "flint.h"
#include "fmpz.h"
#include "fmpz_poly.h"
#include "long_extras.h"
#include "ulong_extras.h"
int
main(void)
{
int i, result;
FLINT_TEST_INIT(state);
flint_printf("scalar_mul_si....");
fflush(stdout);
/* Check aliasing of a and b */
for (i = 0; i < 1000 * flint_test_multiplier(); i++)
{
fmpz_poly_t a, b;
slong n = z_randtest(state);
fmpz_poly_init(a);
fmpz_poly_init(b);
fmpz_poly_randtest(a, state, n_randint(state, 100), 200);
fmpz_poly_scalar_mul_si(b, a, n);
fmpz_poly_scalar_mul_si(a, a, n);
result = (fmpz_poly_equal(a, b));
if (!result)
{
flint_printf("FAIL:\n");
fmpz_poly_print(a), flint_printf("\n\n");
fmpz_poly_print(b), flint_printf("\n\n");
abort();
}
fmpz_poly_clear(a);
fmpz_poly_clear(b);
}
/* Compare with fmpz_poly_scalar_mul_ui */
for (i = 0; i < 1000 * flint_test_multiplier(); i++)
{
fmpz_poly_t a, b;
ulong n = n_randbits(state, FLINT_BITS - 1);
fmpz_poly_init(a);
fmpz_poly_init(b);
fmpz_poly_randtest(a, state, n_randint(state, 100), 200);
fmpz_poly_scalar_mul_ui(b, a, n);
fmpz_poly_scalar_mul_si(a, a, n);
result = (fmpz_poly_equal(a, b));
if (!result)
{
flint_printf("FAIL:\n");
fmpz_poly_print(a), flint_printf("\n\n");
fmpz_poly_print(b), flint_printf("\n\n");
abort();
}
fmpz_poly_clear(a);
fmpz_poly_clear(b);
}
/* Check (a*n1)*n2 = a*(n1*n2) */
for (i = 0; i < 1000 * flint_test_multiplier(); i++)
{
fmpz_poly_t a, b, c;
slong n1 = (slong) n_randbits(state, (FLINT_BITS - 2) / 2);
slong n2 = (slong) n_randbits(state, (FLINT_BITS - 2) / 2);
if (n_randint(state, 2))
n1 = -n1;
if (n_randint(state, 2))
n2 = -n2;
fmpz_poly_init(a);
fmpz_poly_init(b);
fmpz_poly_init(c);
fmpz_poly_randtest(a, state, n_randint(state, 100), 200);
fmpz_poly_scalar_mul_si(b, a, n1);
fmpz_poly_scalar_mul_si(c, b, n2);
fmpz_poly_scalar_mul_si(b, a, n1 * n2);
result = (fmpz_poly_equal(b, c));
if (!result)
{
flint_printf("FAIL n1 = %wd, n2 = %wd:\n", n1, n2);
fmpz_poly_print(a), flint_printf("\n\n");
fmpz_poly_print(b), flint_printf("\n\n");
fmpz_poly_print(c), flint_printf("\n\n");
abort();
}
fmpz_poly_clear(a);
fmpz_poly_clear(b);
fmpz_poly_clear(c);
}
FLINT_TEST_CLEANUP(state);
flint_printf("PASS\n");
return 0;
}