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

105 lines
2.6 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("sqrt....");
fflush(stdout);
for (i = 0; i < 10000 * flint_test_multiplier(); i++)
{
mp_limb_t a, s1, s2;
mpz_t a_m, s2_m;
mpz_init(a_m);
mpz_init(s2_m);
a = n_randtest(state);
s1 = n_sqrt(a);
flint_mpz_set_ui(a_m, a);
mpz_sqrt(s2_m, a_m);
s2 = flint_mpz_get_ui(s2_m);
result = (s1 == s2);
if (!result)
{
flint_printf("FAIL:\n");
flint_printf("a = %wu, s1 = %wd, s2 = %wu\n", a, s1, s2);
abort();
}
mpz_clear(a_m);
mpz_clear(s2_m);
}
for (i = 0; i < 10000 * flint_test_multiplier(); i++)
{
mp_limb_t a, s1, s2, bits;
mpz_t a_m, s2_m;
mpz_init(a_m);
mpz_init(s2_m);
bits = n_randint(state, FLINT_BITS/2 + 1);
a = n_randtest_bits(state, bits);
a = a*a;
a += (n_randint(state, 100) - 50);
s1 = n_sqrt(a);
flint_mpz_set_ui(a_m, a);
mpz_sqrt(s2_m, a_m);
s2 = flint_mpz_get_ui(s2_m);
result = (s1 == s2);
if (!result)
{
flint_printf("FAIL:\n");
flint_printf("a = %wu, s1 = %wd, s2 = %wu\n", a, s1, s2);
abort();
}
mpz_clear(a_m);
mpz_clear(s2_m);
}
FLINT_TEST_CLEANUP(state);
flint_printf("PASS\n");
return 0;
}