91 lines
2.4 KiB
C
91 lines
2.4 KiB
C
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/*=============================================================================
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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) 2007, 2008 William Hart
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Copyright (C) 2008 Peter Shrimpton
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Copyright (C) 2010 Fredrik Johansson
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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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int main(void)
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{
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mp_limb_t n;
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mp_limb_t res1, res2;
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slong i, rep;
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mpz_t mpz_n;
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FLINT_TEST_INIT(state);
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flint_printf("nextprime....");
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fflush(stdout);
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if (n_nextprime(0, 0) != 2)
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{
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flint_printf("FAIL: expected n_nextprime(0) = 2");
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abort();
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}
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if (n_nextprime(UWORD_MAX_PRIME - 1, 0) != UWORD_MAX_PRIME)
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{
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flint_printf("FAIL: expected n_nextprime(UWORD_MAX_PRIME-1) = UWORD_MAX_PRIME");
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abort();
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}
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mpz_init(mpz_n);
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for (rep = 0; rep < 10000 * flint_test_multiplier(); rep++)
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{
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ulong bits = n_randint(state, FLINT_D_BITS-1)+1;
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n = n_randtest(state) % ((UWORD(1)<<bits) - UWORD(1)) + 1;
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flint_mpz_set_ui(mpz_n, n);
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for (i = 0; i < 1; i++)
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{
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mpz_nextprime(mpz_n, mpz_n);
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n = n_nextprime(n, 0);
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}
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res1 = n;
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res2 = flint_mpz_get_ui(mpz_n);
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if (res1 != res2)
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{
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flint_printf("FAIL:\n");
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flint_printf("%wu, %wu\n", res1, res2);
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abort();
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}
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}
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mpz_clear(mpz_n);
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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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