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/* Test of rounding towards positive infinity.
Copyright (C) 2007-2010 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 <http://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2007. */
#include <config.h>
#include <math.h>
#include "signature.h"
SIGNATURE_CHECK (ceilf, float, (float));
#include "isnanf-nolibm.h"
#include "nan.h"
#include "macros.h"
/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0f.
So we use -zero instead. */
float zero = 0.0f;
int
main ()
{
/* Zero. */
ASSERT (ceilf (0.0f) == 0.0f);
ASSERT (ceilf (-zero) == 0.0f);
/* Positive numbers. */
ASSERT (ceilf (0.3f) == 1.0f);
ASSERT (ceilf (0.7f) == 1.0f);
ASSERT (ceilf (1.0f) == 1.0f);
ASSERT (ceilf (1.001f) == 2.0f);
ASSERT (ceilf (1.5f) == 2.0f);
ASSERT (ceilf (1.999f) == 2.0f);
ASSERT (ceilf (2.0f) == 2.0f);
ASSERT (ceilf (65535.99f) == 65536.0f);
ASSERT (ceilf (65536.0f) == 65536.0f);
ASSERT (ceilf (2.341e31f) == 2.341e31f);
/* Negative numbers. */
ASSERT (ceilf (-0.3f) == 0.0f);
ASSERT (ceilf (-0.7f) == 0.0f);
ASSERT (ceilf (-1.0f) == -1.0f);
ASSERT (ceilf (-1.5f) == -1.0f);
ASSERT (ceilf (-1.999f) == -1.0f);
ASSERT (ceilf (-2.0f) == -2.0f);
ASSERT (ceilf (-65535.99f) == -65535.0f);
ASSERT (ceilf (-65536.0f) == -65536.0f);
ASSERT (ceilf (-2.341e31f) == -2.341e31f);
/* Infinite numbers. */
ASSERT (ceilf (1.0f / 0.0f) == 1.0f / 0.0f);
ASSERT (ceilf (-1.0f / 0.0f) == -1.0f / 0.0f);
/* NaNs. */
ASSERT (isnanf (ceilf (NaNf ())));
return 0;
}
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