124 lines
2.9 KiB
C
124 lines
2.9 KiB
C
/* Test mpz_hamdist.
|
|
|
|
Copyright 2001, 2002 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_twobits (void)
|
|
{
|
|
unsigned long i, j, got, want;
|
|
mpz_t x, y;
|
|
|
|
mpz_init (x);
|
|
mpz_init (y);
|
|
for (i = 0; i < 5 * GMP_NUMB_BITS; i++)
|
|
{
|
|
for (j = 0; j < 5 * GMP_NUMB_BITS; j++)
|
|
{
|
|
mpz_set_ui (x, 0L);
|
|
mpz_setbit (x, i);
|
|
mpz_set_ui (y, 0L);
|
|
mpz_setbit (y, j);
|
|
|
|
want = 2 * (i != j);
|
|
got = mpz_hamdist (x, y);
|
|
if (got != want)
|
|
{
|
|
printf ("mpz_hamdist wrong on 2 bits pos/pos\n");
|
|
wrong:
|
|
printf (" i %lu\n", i);
|
|
printf (" j %lu\n", j);
|
|
printf (" got %lu\n", got);
|
|
printf (" want %lu\n", want);
|
|
mpz_trace (" x ", x);
|
|
mpz_trace (" y ", y);
|
|
abort();
|
|
}
|
|
|
|
mpz_neg (x, x);
|
|
mpz_neg (y, y);
|
|
want = ABS ((long) (i-j));
|
|
got = mpz_hamdist (x, y);
|
|
if (got != want)
|
|
{
|
|
printf ("mpz_hamdist wrong on 2 bits neg/neg\n");
|
|
goto wrong;
|
|
}
|
|
}
|
|
|
|
}
|
|
mpz_clear (x);
|
|
mpz_clear (y);
|
|
}
|
|
|
|
|
|
void
|
|
check_rand (void)
|
|
{
|
|
gmp_randstate_ptr rands = RANDS;
|
|
unsigned long got, want;
|
|
int i;
|
|
mpz_t x, y;
|
|
|
|
mpz_init (x);
|
|
mpz_init (y);
|
|
|
|
for (i = 0; i < 2000; i++)
|
|
{
|
|
mpz_erandomb (x, rands, 6 * GMP_NUMB_BITS);
|
|
mpz_negrandom (x, rands);
|
|
mpz_mul_2exp (x, x, urandom() % (4 * GMP_NUMB_BITS));
|
|
|
|
mpz_erandomb (y, rands, 6 * GMP_NUMB_BITS);
|
|
mpz_negrandom (y, rands);
|
|
mpz_mul_2exp (y, y, urandom() % (4 * GMP_NUMB_BITS));
|
|
|
|
want = refmpz_hamdist (x, y);
|
|
got = mpz_hamdist (x, y);
|
|
if (got != want)
|
|
{
|
|
printf ("mpz_hamdist wrong on random\n");
|
|
printf (" got %lu\n", got);
|
|
printf (" want %lu\n", want);
|
|
mpz_trace (" x ", x);
|
|
mpz_trace (" y ", y);
|
|
abort();
|
|
}
|
|
}
|
|
mpz_clear (x);
|
|
mpz_clear (y);
|
|
}
|
|
|
|
int
|
|
main (void)
|
|
{
|
|
tests_start ();
|
|
mp_trace_base = -16;
|
|
|
|
check_twobits ();
|
|
check_rand ();
|
|
|
|
tests_end ();
|
|
exit (0);
|
|
}
|