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/* Test of rounding to nearest, breaking ties away from zero.
Copyright (C) 2010-2017 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, 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 <http://www.gnu.org/licenses/>. */
#include <config.h>
#include <math.h>
#include "fpucw.h"
#include "isnanl-nolibm.h"
#include "minus-zero.h"
#include "infinity.h"
#include "nan.h"
#include "macros.h"
int
main ()
{
DECL_LONG_DOUBLE_ROUNDING
BEGIN_LONG_DOUBLE_ROUNDING ();
/* See IEEE 754, section 6.3:
"the sign of the result of the round floating-point number to
integral value operation is the sign of the operand. These rules
shall apply even when operands or results are zero or infinite." */
/* Zero. */
ASSERT (!signbit (roundl (0.0L)));
ASSERT (!!signbit (roundl (minus_zerol)) == !!signbit (minus_zerol));
/* Positive numbers. */
ASSERT (!signbit (roundl (0.3L)));
ASSERT (!signbit (roundl (0.7L)));
/* Negative numbers. */
ASSERT (!!signbit (roundl (-0.3L)) == !!signbit (minus_zerol));
ASSERT (!!signbit (roundl (-0.7L)) == !!signbit (minus_zerol));
/* [MX] shaded specification in POSIX. */
/* NaN. */
ASSERT (isnanl (roundl (NaNl ())));
/* Infinity. */
ASSERT (roundl (Infinityl ()) == Infinityl ());
ASSERT (roundl (- Infinityl ()) == - Infinityl ());
return 0;
}
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