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/*
Copyright (C) 2011 Sebastian Pancratz
This file is part of FLINT.
FLINT is free software: you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License (LGPL) as published
by the Free Software Foundation; either version 3 of the License, or
(at your option) any later version. See <https://www.gnu.org/licenses/>.
*/
#include "test_helpers.h"
#include "ulong_extras.h"
#include "fmpz.h"
TEST_FUNCTION_START(fmpz_divisible, state)
{
int i, result;
/* Compare with GMP: random */
for (i = 0; i < 1000 * flint_test_multiplier(); i++)
{
fmpz_t a, b;
mpz_t c, d;
int e, f;
fmpz_init(a);
fmpz_init(b);
mpz_init(c);
mpz_init(d);
fmpz_randtest(a, state, 200);
fmpz_randtest(b, state, 200);
fmpz_get_mpz(c, a);
fmpz_get_mpz(d, b);
e = fmpz_divisible(b, a);
f = mpz_divisible_p(d, c);
result = (e == f);
if (!result)
{
flint_printf("FAIL:\n");
gmp_printf("c = %Zd, d = %Zd\n", c, d);
fflush(stdout);
flint_abort();
}
fmpz_clear(a);
fmpz_clear(b);
mpz_clear(c);
mpz_clear(d);
}
/* Compare with GMP: b a multiple of a */
for (i = 0; i < 1000 * flint_test_multiplier(); i++)
{
fmpz_t a, b;
mpz_t c, d;
int e, f;
fmpz_init(a);
fmpz_init(b);
mpz_init(c);
mpz_init(d);
fmpz_randtest(a, state, 200);
fmpz_randtest(b, state, 200);
fmpz_mul(b, a, b);
fmpz_get_mpz(c, a);
fmpz_get_mpz(d, b);
e = fmpz_divisible(b, a);
f = mpz_divisible_p(d, c);
result = (e == f && e == 1);
if (!result)
{
flint_printf("FAIL:\n");
gmp_printf("c = %Zd, d = %Zd\n", c, d);
fflush(stdout);
flint_abort();
}
fmpz_clear(a);
fmpz_clear(b);
mpz_clear(c);
mpz_clear(d);
}
/* Check aliasing */
for (i = 0; i < 1000 * flint_test_multiplier(); i++)
{
fmpz_t a;
int b;
fmpz_init(a);
fmpz_randtest(a, state, 200);
b = fmpz_divisible(a, a);
result = (b == 1);
if (!result)
{
flint_printf("FAIL:\n");
flint_printf("a = "), fmpz_print(a);
fflush(stdout);
flint_abort();
}
fmpz_clear(a);
}
TEST_FUNCTION_END(state);
}