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/* Test popc_limb.
Copyright 2002, 2012 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"
int
main (void)
{
mp_limb_t src, want, got;
int i;
tests_start ();
mp_trace_base = -16;
for (i = 0; i < GMP_LIMB_BITS; i++)
{
src = CNST_LIMB(1) << i;
want = 1;
popc_limb (got, src);
if (got != want)
{
error:
printf ("popc_limb wrong result\n");
mpn_trace (" src ", &src, (mp_size_t) 1);
mpn_trace (" want", &want, (mp_size_t) 1);
mpn_trace (" got ", &got, (mp_size_t) 1);
abort ();
}
}
src = 0;
want = 0;
for (i = 0; i < GMP_LIMB_BITS; i++)
{
src += CNST_LIMB(1) << i;
want += 1;
popc_limb (got, src);
if (got != want)
{
goto error;
}
}
for (i = 0; i < 100; i++)
{
mpn_random2 (&src, (mp_size_t) 1);
want = ref_popc_limb (src);
popc_limb (got, src);
if (got != want)
goto error;
}
tests_end ();
exit (0);
}
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