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/* Test mpz_divexact_ui.
Copyright 1996, 2001 Free Software Foundation, Inc.
This file is part of the GNU MP Library test suite.
The GNU MP Library test suite 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 3 of the License,
or (at your option) any later version.
The GNU MP Library test suite 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
the GNU MP Library test suite. If not, see https://www.gnu.org/licenses/. */
#include <stdio.h>
#include <stdlib.h>
#include "gmp-impl.h"
#include "tests.h"
void
check_random (int argc, char *argv[])
{
gmp_randstate_ptr rands = RANDS;
int reps = 500000;
mpz_t a, q, got;
int i, qneg;
unsigned long d;
if (argc == 2)
reps = atoi (argv[1]);
mpz_init (a);
mpz_init (q);
mpz_init (got);
for (i = 0; i < reps; i++)
{
do
d = (unsigned long) urandom();
while (d == 0);
mpz_erandomb (q, rands, 512);
mpz_mul_ui (a, q, d);
for (qneg = 0; qneg <= 1; qneg++)
{
mpz_divexact_ui (got, a, d);
MPZ_CHECK_FORMAT (got);
if (mpz_cmp (got, q) != 0)
{
printf ("mpz_divexact_ui wrong\n");
mpz_trace (" a", a);
printf (" d=%lu\n", d);
mpz_trace (" q", q);
mpz_trace (" got", got);
abort ();
}
mpz_neg (q, q);
mpz_neg (a, a);
}
}
mpz_clear (a);
mpz_clear (q);
mpz_clear (got);
}
int
main (int argc, char **argv)
{
tests_start ();
check_random (argc, argv);
tests_end ();
exit (0);
}
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