e554550755
for file in $(find -name \*.h ) ; do sed -e "s/#include \"gmp\.h\"/#include \"mpir.h\"/g" $file > temp ; mv temp $file ; done for file in $(find -name \*.cc) ; do sed -e "s/#include \"gmp\.h\"/#include \"mpir.h\"/g" $file > temp ; mv temp $file ; done
146 lines
3.4 KiB
C
146 lines
3.4 KiB
C
/* Test mpz_powm, mpz_mul. mpz_mod, mpz_mod_ui, mpz_div_ui.
|
|
|
|
Copyright 1991, 1993, 1994, 1996, 1999, 2000, 2001 Free Software Foundation,
|
|
Inc.
|
|
|
|
This file is part of the GNU MP Library.
|
|
|
|
The GNU MP Library is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation; either version 2.1 of the License, or (at your
|
|
option) any later version.
|
|
|
|
The GNU MP Library 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 Lesser General Public
|
|
License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with the GNU MP Library; see the file COPYING.LIB. If not, write to
|
|
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
|
MA 02110-1301, USA. */
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
#include "mpir.h"
|
|
#include "gmp-impl.h"
|
|
#include "tests.h"
|
|
|
|
void debug_mp _PROTO ((mpz_t, int));
|
|
|
|
int
|
|
main (int argc, char **argv)
|
|
{
|
|
mpz_t base, exp, mod;
|
|
mpz_t r1, r2, t1, exp2, base2;
|
|
mp_size_t base_size, exp_size, mod_size;
|
|
int i;
|
|
int reps = 100;
|
|
gmp_randstate_ptr rands;
|
|
mpz_t bs;
|
|
unsigned long bsi, size_range;
|
|
|
|
tests_start ();
|
|
rands = RANDS;
|
|
|
|
mpz_init (bs);
|
|
|
|
if (argc == 2)
|
|
reps = atoi (argv[1]);
|
|
|
|
mpz_init (base);
|
|
mpz_init (exp);
|
|
mpz_init (mod);
|
|
mpz_init (r1);
|
|
mpz_init (r2);
|
|
mpz_init (t1);
|
|
mpz_init (exp2);
|
|
mpz_init (base2);
|
|
|
|
for (i = 0; i < reps; i++)
|
|
{
|
|
mpz_urandomb (bs, rands, 32);
|
|
size_range = mpz_get_ui (bs) % 13 + 2;
|
|
|
|
do /* Loop until mathematically well-defined. */
|
|
{
|
|
mpz_urandomb (bs, rands, size_range);
|
|
base_size = mpz_get_ui (bs);
|
|
mpz_rrandomb (base, rands, base_size);
|
|
|
|
mpz_urandomb (bs, rands, 7L);
|
|
exp_size = mpz_get_ui (bs);
|
|
mpz_rrandomb (exp, rands, exp_size);
|
|
}
|
|
while (mpz_cmp_ui (base, 0) == 0 && mpz_cmp_ui (exp, 0) == 0);
|
|
|
|
do
|
|
{
|
|
mpz_urandomb (bs, rands, size_range);
|
|
mod_size = mpz_get_ui (bs);
|
|
mpz_rrandomb (mod, rands, mod_size);
|
|
}
|
|
while (mpz_cmp_ui (mod, 0) == 0);
|
|
|
|
mpz_urandomb (bs, rands, 2);
|
|
bsi = mpz_get_ui (bs);
|
|
if ((bsi & 1) != 0)
|
|
mpz_neg (base, base);
|
|
|
|
/* printf ("%ld %ld %ld\n", SIZ (base), SIZ (exp), SIZ (mod)); */
|
|
|
|
mpz_powm (r1, base, exp, mod);
|
|
|
|
mpz_set_ui (r2, 1);
|
|
mpz_set (base2, base);
|
|
mpz_set (exp2, exp);
|
|
|
|
mpz_mod (r2, r2, mod); /* needed when exp==0 and mod==1 */
|
|
while (mpz_cmp_ui (exp2, 0) != 0)
|
|
{
|
|
mpz_mod_ui (t1, exp2, 2);
|
|
if (mpz_cmp_ui (t1, 0) != 0)
|
|
{
|
|
mpz_mul (r2, r2, base2);
|
|
mpz_mod (r2, r2, mod);
|
|
}
|
|
mpz_mul (base2, base2, base2);
|
|
mpz_mod (base2, base2, mod);
|
|
mpz_div_ui (exp2, exp2, 2);
|
|
}
|
|
|
|
if (mpz_cmp (r1, r2) != 0)
|
|
{
|
|
fprintf (stderr, "\nIncorrect results for operands:\n");
|
|
debug_mp (base, -16);
|
|
debug_mp (exp, -16);
|
|
debug_mp (mod, -16);
|
|
fprintf (stderr, "mpz_powm result:\n");
|
|
debug_mp (r1, -16);
|
|
fprintf (stderr, "reference result:\n");
|
|
debug_mp (r2, -16);
|
|
abort ();
|
|
}
|
|
}
|
|
|
|
mpz_clear (bs);
|
|
mpz_clear (base);
|
|
mpz_clear (exp);
|
|
mpz_clear (mod);
|
|
mpz_clear (r1);
|
|
mpz_clear (r2);
|
|
mpz_clear (t1);
|
|
mpz_clear (exp2);
|
|
mpz_clear (base2);
|
|
|
|
tests_end ();
|
|
exit (0);
|
|
}
|
|
|
|
void
|
|
debug_mp (mpz_t x, int base)
|
|
{
|
|
mpz_out_str (stderr, base, x); fputc ('\n', stderr);
|
|
}
|