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/*
Copyright (C) 2021 Fredrik Johansson
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_gcd3, state)
{
slong i;
for (i = 0; i < 10000 * flint_test_multiplier(); i++)
{
fmpz_t a, b, c, d, e;
int aliasing;
fmpz_init(a);
fmpz_init(b);
fmpz_init(c);
fmpz_init(d);
fmpz_init(e);
fmpz_randtest(a, state, 200);
fmpz_randtest(b, state, 200);
fmpz_randtest(c, state, 200);
fmpz_randtest(d, state, 200);
fmpz_randtest(e, state, 200);
fmpz_mul(a, a, d);
fmpz_mul(b, b, d);
fmpz_mul(c, c, d);
fmpz_gcd(d, a, b);
fmpz_gcd(d, d, c);
aliasing = n_randint(state, 4);
if (aliasing == 0)
{
fmpz_gcd3(e, a, b, c);
}
else if (aliasing == 1)
{
fmpz_set(e, a);
fmpz_gcd3(e, e, b, c);
}
else if (aliasing == 2)
{
fmpz_set(e, b);
fmpz_gcd3(e, a, e, c);
}
else
{
fmpz_set(e, c);
fmpz_gcd3(e, a, b, e);
}
if (!fmpz_equal(d, e))
{
flint_printf("FAIL:\n");
flint_printf("aliasing = %d\n", aliasing);
fmpz_print(a); printf("\n");
fmpz_print(b); printf("\n");
fmpz_print(c); printf("\n");
fmpz_print(d); printf("\n");
fmpz_print(e); printf("\n");
fflush(stdout);
flint_abort();
}
fmpz_clear(a);
fmpz_clear(b);
fmpz_clear(c);
fmpz_clear(d);
fmpz_clear(e);
}
TEST_FUNCTION_END(state);
}