1 /* Test of rounding towards positive infinity.
2 Copyright (C) 2007 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 2, or (at your option)
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, write to the Free Software Foundation,
16 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
18 /* Written by Bruno Haible <bruno@clisp.org>, 2007. */
27 #define ASSERT(expr) \
32 fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
38 /* The Compaq (ex-DEC) C 6.4 compiler chokes on the expression 0.0 / 0.0. */
43 static float zero = 0.0f;
47 # define NaN() (0.0f / 0.0f)
54 ASSERT (ceilf (0.0f) == 0.0f);
55 ASSERT (ceilf (-0.0f) == 0.0f);
56 /* Positive numbers. */
57 ASSERT (ceilf (0.3f) == 1.0f);
58 ASSERT (ceilf (0.7f) == 1.0f);
59 ASSERT (ceilf (1.0f) == 1.0f);
60 ASSERT (ceilf (1.001f) == 2.0f);
61 ASSERT (ceilf (1.5f) == 2.0f);
62 ASSERT (ceilf (1.999f) == 2.0f);
63 ASSERT (ceilf (2.0f) == 2.0f);
64 ASSERT (ceilf (65535.99f) == 65536.0f);
65 ASSERT (ceilf (65536.0f) == 65536.0f);
66 ASSERT (ceilf (2.341e31f) == 2.341e31f);
67 /* Negative numbers. */
68 ASSERT (ceilf (-0.3f) == 0.0f);
69 ASSERT (ceilf (-0.7f) == 0.0f);
70 ASSERT (ceilf (-1.0f) == -1.0f);
71 ASSERT (ceilf (-1.5f) == -1.0f);
72 ASSERT (ceilf (-1.999f) == -1.0f);
73 ASSERT (ceilf (-2.0f) == -2.0f);
74 ASSERT (ceilf (-65535.99f) == -65535.0f);
75 ASSERT (ceilf (-65536.0f) == -65536.0f);
76 ASSERT (ceilf (-2.341e31f) == -2.341e31f);
77 /* Infinite numbers. */
78 ASSERT (ceilf (1.0f / 0.0f) == 1.0f / 0.0f);
79 ASSERT (ceilf (-1.0f / 0.0f) == -1.0f / 0.0f);
81 ASSERT (isnan (ceilf (NaN ())));