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/* Test mpz_gcd_ui.
Copyright 2003 Free Software Foundation, Inc.
This file is part of the GNU MP Library.
The GNU MP Library is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser 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 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 Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. */
#include <stdio.h>
#include <stdlib.h>
#include "gmp.h"
#include "gmp-impl.h"
#include "tests.h"
/* Check mpz_gcd_ui doesn't try to return a value out of range.
This was wrong in gmp 4.1.2 with a long long limb. */
static void
check_ui_range (void)
{
unsigned long got;
mpz_t x;
int i;
mpz_init_set_ui (x, ULONG_MAX);
for (i = 0; i < 20; i++)
{
mpz_mul_2exp (x, x, 1L);
got = mpz_gcd_ui (NULL, x, 0L);
if (got != 0)
{
printf ("mpz_gcd_ui (ULONG_MAX*2^%d, 0)\n", i);
printf (" return %#lx\n", got);
printf (" should be 0\n");
abort ();
}
}
mpz_clear (x);
}
int
main (void)
{
tests_start ();
check_ui_range ();
tests_end ();
exit (0);
}
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