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/* Test of fabs*() function family.
Copyright (C) 2012-2023 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
static void
test_function (void)
{
volatile DOUBLE x;
DOUBLE y;
/* Signed zero. */
x = L_(0.0);
y = FABS (x);
ASSERT (y == L_(0.0));
ASSERT (!signbit (y));
x = MINUS_ZERO;
y = FABS (x);
ASSERT (y == L_(0.0));
ASSERT (!signbit (y));
/* Randomized tests. */
{
int i;
for (i = 0; i < SIZEOF (RANDOM); i++)
{
x = L_(10.0) * RANDOM[i]; /* 0.0 <= x <= 10.0 */
ASSERT (FABS (x) == x);
ASSERT (FABS (- x) == x);
}
}
}
volatile DOUBLE x;
DOUBLE y;
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