pqc/external/flint-2.4.3/ulong_extras/test/t-pow.c
2014-05-24 23:16:06 +02:00

72 lines
2.1 KiB
C

/*=============================================================================
This file is part of FLINT.
FLINT 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 2 of the License, or
(at your option) any later version.
FLINT 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 FLINT; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
=============================================================================*/
/******************************************************************************
Copyright (C) 2009 William Hart
******************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <gmp.h>
#include "flint.h"
#include "ulong_extras.h"
int main(void)
{
int i, result;
FLINT_TEST_INIT(state);
flint_printf("pow....");
fflush(stdout);
for (i = 0; i < 1000 * flint_test_multiplier(); i++) /* Test a^e1 * a^e2 = a^(e1 + e2) */
{
mp_limb_t exp1, exp2, n, bits, r1, r2;
bits = n_randint(state, 55) + 10;
exp1 = n_randint(state, 5);
exp2 = n_randint(state, 5);
if ((exp1 == WORD(0)) && (exp2 == WORD(0))) bits = n_randint(state, 64) + 1;
else bits /= (exp1 + exp2);
n = n_randtest_bits(state, bits);
r1 = n_pow(n, exp1)*n_pow(n, exp2);
r2 = n_pow(n, exp1 + exp2);
result = (r1 == r2);
if (!result)
{
flint_printf("FAIL:\n");
flint_printf("n = %wu, exp1 = %wu, exp2 = %wu, r1 = %wu, r2 = %wu\n", n, exp1, exp2, r1, r2);
abort();
}
}
FLINT_TEST_CLEANUP(state);
flint_printf("PASS\n");
return 0;
}