pqc/external/flint-2.4.3/fmpz/test/t-divisible_si.c

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2014-05-18 22:03:37 +00:00
/*=============================================================================
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) 2011 Sebastian Pancratz
******************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <gmp.h>
#include <limits.h>
#include "flint.h"
#include "ulong_extras.h"
#include "long_extras.h"
#include "fmpz.h"
int
main(void)
{
int i, result;
FLINT_TEST_INIT(state);
flint_printf("divisible_si....");
fflush(stdout);
/* Compare with MPIR: random */
for (i = 0; i < 1000 * flint_test_multiplier(); i++)
{
slong a;
fmpz_t b;
mpz_t d;
int e, f;
fmpz_init(b);
mpz_init(d);
a = z_randtest(state);
if (a == WORD_MIN)
a = 1;
a = FLINT_ABS(a) + 1;
fmpz_randtest(b, state, 200);
fmpz_get_mpz(d, b);
e = fmpz_divisible_si(b, a);
f = flint_mpz_divisible_ui_p(d, a);
result = (e == f);
if (!result)
{
flint_printf("FAIL:\n");
flint_printf("a = %wd, b = ", a), fmpz_print(b), flint_printf("\n");
abort();
}
fmpz_clear(b);
mpz_clear(d);
}
/* Compare with MPIR: b a multiple of a */
for (i = 0; i < 1000 * flint_test_multiplier(); i++)
{
slong a;
fmpz_t b;
mpz_t d;
int e, f;
fmpz_init(b);
mpz_init(d);
a = z_randtest(state);
if (a == WORD_MIN)
a = 1;
a = FLINT_ABS(a) + 1;
fmpz_randtest(b, state, 200);
fmpz_mul_ui(b, b, a);
fmpz_get_mpz(d, b);
e = fmpz_divisible_si(b, a);
f = flint_mpz_divisible_ui_p(d, a);
result = (e == f && e == 1);
if (!result)
{
flint_printf("FAIL:\n");
flint_printf("a = %wd, b = ", a), fmpz_print(b), flint_printf("\n");
abort();
}
fmpz_clear(b);
mpz_clear(d);
}
FLINT_TEST_CLEANUP(state);
flint_printf("PASS\n");
return EXIT_SUCCESS;
}