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/*
Copyright (C) 2009 William Hart
Copyright (C) 2024 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 "ulong_extras.h"
TEST_FUNCTION_START(n_is_oddprime_binary, state)
{
slong ix;
slong cutoff = 100000;
int result;
for (ix = 0; ix < 20000 * flint_test_multiplier(); ix++)
{
ulong d;
int type;
type = n_randint(state, 2);
/* NOTE: n_is_oddprime_binary(n) requires n to be odd and n > 16 */
if (type == 0)
{
/* Test that primes pass the test */
int bits = 5 + n_randint(state, 13);
do
d = n_randprime(state, bits, 1);
while (d > cutoff);
result = n_is_oddprime_binary(d);
}
else
{
/* Test that not too many composites pass */
do
d = (17 + n_randint(state, cutoff - 17)) | 1;
while (n_is_probabprime(d));
result = !n_is_oddprime_binary(d);
}
if (!result)
TEST_FUNCTION_FAIL(
"type %d\n"
"d = %wu\n",
type, d);
}
TEST_FUNCTION_END(state);
}