1 /* Test of rounding towards positive infinity.
2 Copyright (C) 2007-2011 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17 /* Written by Bruno Haible <bruno@clisp.org>, 2007. */
23 #include "signature.h"
24 SIGNATURE_CHECK (ceil, double, (double));
28 #include "isnand-nolibm.h"
29 #include "minus-zero.h"
37 ASSERT (ceil (0.0) == 0.0);
38 ASSERT (ceil (minus_zerod) == 0.0);
39 /* Positive numbers. */
40 ASSERT (ceil (0.3) == 1.0);
41 ASSERT (ceil (0.7) == 1.0);
42 ASSERT (ceil (1.0) == 1.0);
43 ASSERT (ceil (1.001) == 2.0);
44 ASSERT (ceil (1.5) == 2.0);
45 ASSERT (ceil (1.999) == 2.0);
46 ASSERT (ceil (2.0) == 2.0);
47 ASSERT (ceil (65535.999) == 65536.0);
48 ASSERT (ceil (65536.0) == 65536.0);
49 ASSERT (ceil (2.341e31) == 2.341e31);
50 /* Negative numbers. */
51 ASSERT (ceil (-0.3) == 0.0);
52 ASSERT (ceil (-0.7) == 0.0);
53 ASSERT (ceil (-1.0) == -1.0);
54 ASSERT (ceil (-1.5) == -1.0);
55 ASSERT (ceil (-1.999) == -1.0);
56 ASSERT (ceil (-2.0) == -2.0);
57 ASSERT (ceil (-65535.999) == -65535.0);
58 ASSERT (ceil (-65536.0) == -65536.0);
59 ASSERT (ceil (-2.341e31) == -2.341e31);
60 /* Infinite numbers. */
61 ASSERT (ceil (1.0 / 0.0) == 1.0 / 0.0);
62 ASSERT (ceil (-1.0 / 0.0) == -1.0 / 0.0);
64 ASSERT (isnand (ceil (NaNd ())));