/* Test mpz_mul, mpz_divexact.
Copyright 1996 , 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"
int
main (
int argc,
char **argv)
{
mpz_t op1, op2;
mpz_t prod, quot;
mp_size_t size;
int i;
int reps =
5000 ;
gmp_randstate_ptr rands;
mpz_t bs;
unsigned long bsi, size_range;
tests_start ();
TESTS_REPS (reps, argv, argc);
rands = RANDS;
mp_trace_base = -
16 ;
mpz_init (bs);
mpz_init (op1);
mpz_init (op2);
mpz_init (prod);
mpz_init (quot);
for (i =
0 ; i < reps; i++)
{
mpz_urandomb (bs, rands,
32 );
size_range = mpz_get_ui (bs) %
17 +
2 ;
/* 0..2047 bit operands */
mpz_urandomb (bs, rands, size_range);
size = mpz_get_ui (bs);
mpz_rrandomb (op1, rands, size);
do
{
mpz_urandomb (bs, rands, size_range);
size = mpz_get_ui (bs);
mpz_rrandomb (op2, rands, size);
}
while (mpz_sgn (op2) ==
0 );
mpz_urandomb (bs, rands,
2 );
bsi = mpz_get_ui (bs);
if ((bsi &
1 ) !=
0 )
mpz_neg (op1, op1);
if ((bsi &
2 ) !=
0 )
mpz_neg (op2, op2);
mpz_mul (prod, op1, op2);
mpz_divexact (quot, prod, op2);
MPZ_CHECK_FORMAT (quot);
if (mpz_cmp (quot, op1) !=
0 )
{
printf (
"Wrong results:\n" );
mpz_trace (
" got " , quot);
mpz_trace (
" want " , op1);
mpz_trace (
" dividend" , prod);
mpz_trace (
" divisor " , op2);
abort ();
}
}
mpz_clear (bs);
mpz_clear (op1);
mpz_clear (op2);
mpz_clear (prod);
mpz_clear (quot);
tests_end ();
exit (
0 );
}
Messung V0.5 in Prozent C=93 H=96 G=94
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-06-10)
¤
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