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/* test mpz_divisible_2exp_p */
/*
Copyright 2001 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"
void
check_one (mpz_srcptr a, unsigned long d, int want)
{
int got;
got = (mpz_divisible_2exp_p (a, d) != 0);
if (want != got)
{
printf ("mpz_divisible_2exp_p wrong\n");
printf (" expected %d got %d\n", want, got);
mpz_trace (" a", a);
printf (" d=%lu\n", d);
mp_trace_base = -16;
mpz_trace (" a", a);
printf (" d=0x%lX\n", d);
abort ();
}
}
void
check_data (void)
{
static const struct {
const char *a;
unsigned long d;
int want;
} data[] = {
{ "0", 0, 1 },
{ "0", 1, 1 },
{ "0", 2, 1 },
{ "0", 3, 1 },
{ "1", 0, 1 },
{ "1", 1, 0 },
{ "1", 2, 0 },
{ "1", 3, 0 },
{ "1", 10000, 0 },
{ "4", 0, 1 },
{ "4", 1, 1 },
{ "4", 2, 1 },
{ "4", 3, 0 },
{ "4", 4, 0 },
{ "4", 10000, 0 },
{ "0x80000000", 31, 1 },
{ "0x80000000", 32, 0 },
{ "0x80000000", 64, 0 },
{ "0x100000000", 32, 1 },
{ "0x100000000", 33, 0 },
{ "0x100000000", 64, 0 },
{ "0x8000000000000000", 63, 1 },
{ "0x8000000000000000", 64, 0 },
{ "0x8000000000000000", 128, 0 },
{ "0x10000000000000000", 64, 1 },
{ "0x10000000000000000", 65, 0 },
{ "0x10000000000000000", 128, 0 },
{ "0x10000000000000000", 256, 0 },
{ "0x10000000000000000100000000", 32, 1 },
{ "0x10000000000000000100000000", 33, 0 },
{ "0x10000000000000000100000000", 64, 0 },
{ "0x1000000000000000010000000000000000", 64, 1 },
{ "0x1000000000000000010000000000000000", 65, 0 },
{ "0x1000000000000000010000000000000000", 128, 0 },
{ "0x1000000000000000010000000000000000", 256, 0 },
{ "0x1000000000000000010000000000000000", 1024, 0 },
};
mpz_t a, d;
int i;
mpz_init (a);
mpz_init (d);
for (i = 0; i < numberof (data); i++)
{
mpz_set_str_or_abort (a, data[i].a, 0);
check_one (a, data[i].d, data[i].want);
mpz_neg (a, a);
check_one (a, data[i].d, data[i].want);
}
mpz_clear (a);
mpz_clear (d);
}
int
main (int argc, char *argv[])
{
tests_start ();
check_data ();
tests_end ();
exit (0);
}
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