/* Test binvert_limb.
Copyright 2000 - 2003 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 <string.h>
#include "gmp-impl.h"
#include "longlong.h"
#include "tests.h"
void
one (mp_limb_t n)
{
mp_limb_t inv, prod;
binvert_limb (inv, n);
prod = (inv * n) & GMP_NUMB_MASK;
if (prod !=
1 )
{
printf (
"binvert_limb wrong\n" );
mp_limb_trace (
" n " , n);
mp_limb_trace (
" got " , inv);
mp_limb_trace (
" product " , prod);
abort ();
}
}
void
some (
void )
{
int i;
for (i =
0 ; i <
10000 ; i++)
one (refmpn_random_limb () |
1 );
}
void
all (
void )
{
mp_limb_t n;
n =
1 ;
do {
one (n);
n +=
2 ;
}
while (n !=
1 );
}
int
main (
int argc,
char *argv[])
{
tests_start ();
if (argc >=
2 && strcmp (argv[
1 ],
"-a" ) ==
0 )
{
/* it's feasible to run all values on a 32-bit limb, but not a 64-bit */
all ();
}
else
{
some ();
}
tests_end ();
exit (
0 );
}
Messung V0.5 in Prozent C=86 H=98 G=91
¤ Dauer der Verarbeitung: 0.18 Sekunden
(vorverarbeitet am 2026-09-28)
¤
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