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/*
Copyright (C) 2011 Sebastian Pancratz
Copyright (C) 2022 Albin Ahlbäck
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 "fmpz.h"
#include "gmpcompat.h"
#include "long_extras.h"
TEST_FUNCTION_START(fmpz_divisible_si, state)
{
int i, result;
/* Compare with GMP: 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_not_zero(state);
fmpz_randtest(b, state, 200);
fmpz_get_mpz(d, b);
e = fmpz_divisible_si(b, a);
f = flint_mpz_divisible_ui_p(d, FLINT_UABS(a));
result = (e == f);
if (!result)
{
flint_printf("FAIL:\n");
flint_printf("a = %wd, b = ", a), fmpz_print(b), flint_printf("\n");
fflush(stdout);
flint_abort();
}
fmpz_clear(b);
mpz_clear(d);
}
/* Compare with GMP: 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_not_zero(state);
fmpz_randtest(b, state, 200);
fmpz_mul_si(b, b, a);
fmpz_get_mpz(d, b);
e = fmpz_divisible_si(b, a);
f = flint_mpz_divisible_ui_p(d, FLINT_UABS(a));
result = (e == f && e == 1);
if (!result)
{
flint_printf("FAIL:\n");
flint_printf("a = %wd, b = ", a), fmpz_print(b), flint_printf("\n");
fflush(stdout);
flint_abort();
}
fmpz_clear(b);
mpz_clear(d);
}
TEST_FUNCTION_END(state);
}