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/* Test of rounding towards zero.
Copyright (C) 2007-2023 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/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2007. */
#include <config.h>
#include <math.h>
#include "signature.h"
SIGNATURE_CHECK (truncl, long double, (long double));
#include <float.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 ();
/* Zero. */
ASSERT (truncl (0.0L) == 0.0L);
ASSERT (truncl (minus_zerol) == 0.0L);
/* Positive numbers. */
ASSERT (truncl (0.3L) == 0.0L);
ASSERT (truncl (0.7L) == 0.0L);
ASSERT (truncl (1.0L) == 1.0L);
ASSERT (truncl (1.5L) == 1.0L);
ASSERT (truncl (1.999L) == 1.0L);
ASSERT (truncl (2.0L) == 2.0L);
ASSERT (truncl (65535.999L) == 65535.0L);
ASSERT (truncl (65536.0L) == 65536.0L);
ASSERT (truncl (2.341e31L) == 2.341e31L);
/* Negative numbers. */
ASSERT (truncl (-0.3L) == 0.0L);
ASSERT (truncl (-0.7L) == 0.0L);
ASSERT (truncl (-1.0L) == -1.0L);
ASSERT (truncl (-1.5L) == -1.0L);
ASSERT (truncl (-1.999L) == -1.0L);
ASSERT (truncl (-2.0L) == -2.0L);
ASSERT (truncl (-65535.999L) == -65535.0L);
ASSERT (truncl (-65536.0L) == -65536.0L);
ASSERT (truncl (-2.341e31L) == -2.341e31L);
/* Infinite numbers. */
ASSERT (truncl (Infinityl ()) == Infinityl ());
ASSERT (truncl (- Infinityl ()) == - Infinityl ());
/* NaNs. */
ASSERT (isnanl (truncl (NaNl ())));
return 0;
}
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