94 lines
2.4 KiB
C
94 lines
2.4 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 "ulong_extras.h"
|
||
|
|
#include "fmpz.h"
|
||
|
|
|
||
|
|
int
|
||
|
|
main(void)
|
||
|
|
{
|
||
|
|
int i, result;
|
||
|
|
FLINT_TEST_INIT(state);
|
||
|
|
|
||
|
|
flint_printf("jacobi....");
|
||
|
|
fflush(stdout);
|
||
|
|
|
||
|
|
|
||
|
|
_flint_rand_init_gmp(state);
|
||
|
|
|
||
|
|
for (i = 0; i < 3000 * flint_test_multiplier(); i++)
|
||
|
|
{
|
||
|
|
fmpz_t a, p;
|
||
|
|
mpz_t b, q;
|
||
|
|
int r1, r2;
|
||
|
|
|
||
|
|
fmpz_init(a);
|
||
|
|
fmpz_init(p);
|
||
|
|
|
||
|
|
mpz_init(b);
|
||
|
|
mpz_init(q);
|
||
|
|
|
||
|
|
mpz_rrandomb(q, state->gmp_state, n_randint(state, 200) + 1);
|
||
|
|
#ifdef mpz_next_likely_prime
|
||
|
|
mpz_next_likely_prime(q, q, state->gmp_state);
|
||
|
|
#else
|
||
|
|
mpz_nextprime(q, q);
|
||
|
|
#endif
|
||
|
|
fmpz_set_mpz(p, q);
|
||
|
|
|
||
|
|
mpz_rrandomb(b, state->gmp_state, n_randint(state, 200) + 1);
|
||
|
|
mpz_mod(b, b, q);
|
||
|
|
if (n_randint(state, 2))
|
||
|
|
mpz_neg(b, b);
|
||
|
|
fmpz_set_mpz(a, b);
|
||
|
|
|
||
|
|
r1 = fmpz_jacobi(a, p);
|
||
|
|
r2 = mpz_jacobi(b, q);
|
||
|
|
result = (r1 == r2);
|
||
|
|
|
||
|
|
if (!result)
|
||
|
|
{
|
||
|
|
flint_printf("FAIL:\n");
|
||
|
|
gmp_printf("b = %Zd, q = %Zd\n", b, q);
|
||
|
|
abort();
|
||
|
|
}
|
||
|
|
|
||
|
|
fmpz_clear(a);
|
||
|
|
fmpz_clear(p);
|
||
|
|
|
||
|
|
mpz_clear(b);
|
||
|
|
mpz_clear(q);
|
||
|
|
}
|
||
|
|
|
||
|
|
FLINT_TEST_CLEANUP(state);
|
||
|
|
|
||
|
|
flint_printf("PASS\n");
|
||
|
|
return 0;
|
||
|
|
}
|