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/* Copyright 2012, 2015 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 <stdlib.h> /* for strtol */
#include <stdio.h> /* for printf */
#include "gmp-impl.h"
#include "longlong.h"
#include "tests/tests.h"
#define MAX_LIMBS 150
#define COUNT 500
int
main (int argc, char **argv)
{
gmp_randstate_ptr rands;
mp_ptr ap, rp, pp, app, scratch;
int count = COUNT;
unsigned i;
TMP_DECL;
TMP_MARK;
TESTS_REPS (count, argv, argc);
tests_start ();
rands = RANDS;
ap = TMP_ALLOC_LIMBS (MAX_LIMBS);
rp = TMP_ALLOC_LIMBS (MAX_LIMBS);
pp = TMP_ALLOC_LIMBS (MAX_LIMBS);
app = TMP_ALLOC_LIMBS (MAX_LIMBS);
scratch = TMP_ALLOC_LIMBS (5*MAX_LIMBS);
for (i = 0; i < count; i++)
{
mp_size_t n;
mp_limb_t k;
n = 1 + gmp_urandomm_ui (rands, MAX_LIMBS);
if (i & 1)
mpn_random2 (ap, n);
else
mpn_random (ap, n);
ap[0] |= 1;
if (i < 100)
k = 3 + 2*i;
else
{
mpn_random (&k, 1);
if (k < 3)
k = 3;
else
k |= 1;
}
mpn_brootinv (rp, ap, n, k, scratch);
mpn_powlo (pp, rp, &k, 1, n, scratch);
mpn_mullo_n (app, ap, pp, n);
if (app[0] != 1 || !(n == 1 || mpn_zero_p (app+1, n-1)))
{
gmp_fprintf (stderr,
"mpn_brootinv returned bad result: %u limbs\n",
(unsigned) n);
gmp_fprintf (stderr, "k = %Mx\n", k);
gmp_fprintf (stderr, "a = %Nx\n", ap, n);
gmp_fprintf (stderr, "r = %Nx\n", rp, n);
gmp_fprintf (stderr, "r^n = %Nx\n", pp, n);
gmp_fprintf (stderr, "a r^n = %Nx\n", app, n);
abort ();
}
}
TMP_FREE;
tests_end ();
return 0;
}
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