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/*
Copyright (C) 2023 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 "arf.h"
TEST_FUNCTION_START(arf_sgn, state)
{
slong ix;
for (ix = 0; ix < 100 * flint_test_multiplier(); ix++)
{
arf_t x;
int sgn;
arf_init(x);
arf_randtest_special(x, state, 30, 30);
sgn = arf_sgn(x);
switch (sgn)
{
case -1:
if (arf_is_neg_inf(x) || arf_cmp_si(x, 0) < 0)
break;
else
goto fail;
case 0:
if (arf_is_zero(x) || arf_is_nan(x))
break;
else
goto fail;
case 1:
if (arf_is_pos_inf(x) || arf_cmp_si(x, 0) > 0)
break;
else
goto fail;
default:
fail: flint_throw(FLINT_TEST_FAIL,
"x = %{arf}\n"
"sgn = %d\n",
x, sgn);
}
arf_clear(x);
}
TEST_FUNCTION_END(state);
}