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/*
Copyright (C) 2009 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"
#include "fmpz.h"
TEST_FUNCTION_START(fmpz_sub, state)
{
int i, result;
for (i = 0; i < 10000 * flint_test_multiplier(); i++)
{
fmpz_t a, b, c;
mpz_t d, e, f, g;
int aliasing;
fmpz_init(a);
fmpz_init(b);
fmpz_init(c);
mpz_init(d);
mpz_init(e);
mpz_init(f);
mpz_init(g);
fmpz_randtest(a, state, 200);
fmpz_randtest(b, state, 200);
fmpz_get_mpz(d, a);
fmpz_get_mpz(e, b);
aliasing = n_randint(state, 4);
if (aliasing == 0)
{
fmpz_sub(c, a, b);
}
else if (aliasing == 1)
{
fmpz_set(a, b);
mpz_set(d, e);
fmpz_sub(c, a, a);
}
else if (aliasing == 2)
{
fmpz_set(c, a);
fmpz_sub(c, c, b);
}
else
{
fmpz_set(c, b);
fmpz_sub(c, a, c);
}
mpz_sub(f, d, e);
fmpz_get_mpz(g, c);
result = (mpz_cmp(f, g) == 0) && _fmpz_is_canonical(c);
if (!result)
{
flint_printf("FAIL:\n");
gmp_printf("d = %Zd, e = %Zd, f = %Zd, g = %Zd\n", d, e, f, g);
fflush(stdout);
flint_abort();
}
fmpz_clear(a);
fmpz_clear(b);
fmpz_clear(c);
mpz_clear(d);
mpz_clear(e);
mpz_clear(f);
mpz_clear(g);
}
TEST_FUNCTION_END(state);
}