/* 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 );
}
Messung V0.5 in Prozent C=93 H=91 G=91
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-06-10)
¤
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