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/*
Copyright (C) 2015 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"
#define invert_limb_naive(ninv, n) \
do { \
ulong dummy; \
udiv_qrnnd (ninv, dummy, ~(n), ~(WORD(0)), n); \
} while (0)
TEST_FUNCTION_START(n_preinvert_limb_prenorm, state)
{
int i, result;
for (i = 0; i < 100000 * flint_test_multiplier(); i++)
{
ulong n, ninv1, ninv2;
n = n_randtest(state);
n |= (UWORD(1) << (FLINT_BITS - 1));
ninv1 = n_preinvert_limb_prenorm(n);
invert_limb_naive(ninv2, n);
result = (ninv1 == ninv2);
if (!result)
TEST_FUNCTION_FAIL("n = %wx, ninv1 = %wx, ninv2 = %wx\n", n, ninv1, ninv2);
}
TEST_FUNCTION_END(state)
}