94 lines
2.4 KiB
C
94 lines
2.4 KiB
C
/*=============================================================================
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This file is part of FLINT.
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FLINT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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FLINT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with FLINT; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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=============================================================================*/
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/******************************************************************************
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Copyright (C) 2009 William Hart
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******************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <gmp.h>
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#include "flint.h"
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#include "ulong_extras.h"
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#include "fmpz.h"
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int
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main(void)
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{
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int i, result;
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FLINT_TEST_INIT(state);
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flint_printf("jacobi....");
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fflush(stdout);
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_flint_rand_init_gmp(state);
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for (i = 0; i < 3000 * flint_test_multiplier(); i++)
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{
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fmpz_t a, p;
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mpz_t b, q;
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int r1, r2;
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fmpz_init(a);
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fmpz_init(p);
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mpz_init(b);
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mpz_init(q);
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mpz_rrandomb(q, state->gmp_state, n_randint(state, 200) + 1);
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#ifdef mpz_next_likely_prime
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mpz_next_likely_prime(q, q, state->gmp_state);
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#else
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mpz_nextprime(q, q);
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#endif
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fmpz_set_mpz(p, q);
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mpz_rrandomb(b, state->gmp_state, n_randint(state, 200) + 1);
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mpz_mod(b, b, q);
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if (n_randint(state, 2))
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mpz_neg(b, b);
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fmpz_set_mpz(a, b);
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r1 = fmpz_jacobi(a, p);
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r2 = mpz_jacobi(b, q);
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result = (r1 == r2);
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if (!result)
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{
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flint_printf("FAIL:\n");
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gmp_printf("b = %Zd, q = %Zd\n", b, q);
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abort();
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}
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fmpz_clear(a);
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fmpz_clear(p);
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mpz_clear(b);
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mpz_clear(q);
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}
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FLINT_TEST_CLEANUP(state);
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flint_printf("PASS\n");
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return 0;
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}
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