/* Test mpz_add, mpz_add_ui, mpz_cmp, mpz_cmp, mpz_mul, mpz_sqrtrem.
Copyright 1991 , 1993 , 1994 , 1996 , 2000 - 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 dump_abort (mpz_t, mpz_t, mpz_t);
void debug_mp (mpz_t,
int );
int
main (
int argc,
char **argv)
{
mpz_t x2;
mpz_t x, rem;
mpz_t temp, temp2;
mp_size_t x2_size;
int i;
int reps =
1000 ;
gmp_randstate_ptr rands;
mpz_t bs;
unsigned long size_range;
tests_start ();
TESTS_REPS (reps, argv, argc);
rands = RANDS;
mpz_init (bs);
mpz_init (x2);
mpz_init (x);
mpz_init (rem);
mpz_init (temp);
mpz_init (temp2);
for (i =
0 ; i < reps; i++)
{
mpz_urandomb (bs, rands,
32 );
size_range = mpz_get_ui (bs) %
17 +
2 ;
/* 0..262144 bit operands */
mpz_urandomb (bs, rands, size_range);
x2_size = mpz_get_ui (bs);
mpz_rrandomb (x2, rands, x2_size);
/* printf ("%ld\n", SIZ (x2)); */
mpz_sqrt (temp, x2);
MPZ_CHECK_FORMAT (temp);
mpz_sqrtrem (x, rem, x2);
MPZ_CHECK_FORMAT (x);
MPZ_CHECK_FORMAT (rem);
/* Are results different? */
if (mpz_cmp (temp, x) !=
0 )
dump_abort (x2, x, rem);
mpz_mul (temp, x, x);
/* Is square of result > argument? */
if (mpz_cmp (temp, x2) >
0 )
dump_abort (x2, x, rem);
mpz_add_ui (temp2, x,
1 );
mpz_mul (temp2, temp2, temp2);
/* Is square of (result + 1) <= argument? */
if (mpz_cmp (temp2, x2) <=
0 )
dump_abort (x2, x, rem);
mpz_add (temp2, temp, rem);
/* Is the remainder wrong? */
if (mpz_cmp (x2, temp2) !=
0 )
dump_abort (x2, x, rem);
}
mpz_clear (bs);
mpz_clear (x2);
mpz_clear (x);
mpz_clear (rem);
mpz_clear (temp);
mpz_clear (temp2);
tests_end ();
exit (
0 );
}
void
dump_abort (mpz_t x2, mpz_t x, mpz_t rem)
{
fprintf (stderr,
"ERROR\n" );
fprintf (stderr,
"x2 = " ); debug_mp (x2, -
16 );
fprintf (stderr,
"x = " ); debug_mp (x, -
16 );
fprintf (stderr,
"remainder = " ); debug_mp (rem, -
16 );
abort();
}
void
debug_mp (mpz_t x,
int base)
{
mpz_out_str (stderr, base, x); fputc (
'\n' , stderr);
}
Messung V0.5 in Prozent C=94 H=100 G=96
¤ Dauer der Verarbeitung: 0.2 Sekunden
¤
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