88 lines
2.1 KiB
C
88 lines
2.1 KiB
C
/* Test mpz_divexact_ui.
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Copyright 1996, 2001 Free Software Foundation, Inc.
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This file is part of the GNU MP Library.
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The GNU MP Library is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or (at your
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option) any later version.
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The GNU MP Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the GNU MP Library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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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 "gmp-impl.h"
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#include "tests.h"
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void
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check_random (int argc, char *argv[])
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{
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gmp_randstate_ptr rands = RANDS;
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int reps = 5000;
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mpz_t a, q, got;
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int i, qneg;
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unsigned long d;
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if (argc == 2)
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reps = atoi (argv[1]);
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mpz_init (a);
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mpz_init (q);
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mpz_init (got);
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for (i = 0; i < reps; i++)
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{
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d = (unsigned long) urandom();
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mpz_erandomb (q, rands, 512);
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mpz_mul_ui (a, q, d);
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for (qneg = 0; qneg <= 1; qneg++)
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{
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mpz_divexact_ui (got, a, d);
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MPZ_CHECK_FORMAT (got);
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if (mpz_cmp (got, q) != 0)
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{
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printf ("mpz_divexact_ui wrong\n");
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mpz_trace (" a", a);
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printf (" d=%lu\n", d);
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mpz_trace (" q", q);
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mpz_trace (" got", got);
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abort ();
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}
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mpz_neg (q, q);
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mpz_neg (a, a);
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}
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}
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mpz_clear (a);
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mpz_clear (q);
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mpz_clear (got);
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}
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int
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main (int argc, char **argv)
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{
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tests_start ();
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check_random (argc, argv);
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tests_end ();
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exit (0);
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}
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