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/*
Copyright (C) 2009, 2016 William Hart
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_mulmod2, state)
{
int i, result;
for (i = 0; i < 100000 * flint_test_multiplier(); i++)
{
ulong a, b, d, r1, r2, q, p1, p2;
d = n_randtest_not_zero(state);
a = n_randtest(state) % d;
b = n_randtest(state) % d;
r1 = n_mulmod2(a, b, d);
umul_ppmm(p1, p2, a, b);
p1 %= d;
udiv_qrnnd(q, r2, p1, p2, d);
result = (r1 == r2);
if (!result)
TEST_FUNCTION_FAIL(
"a = %wu, b = %wu, d = %wu\n"
"q = %wu, r1 = %wu, r2 = %wu\n",
a, b, d, q, r1, r2);
}
TEST_FUNCTION_END(state);
}