1 /* Test of rounding towards positive infinity.
2 Copyright (C) 2010-2011 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/>. */
21 #include "minus-zero.h"
27 /* See IEEE 754, section 6.3:
28 "the sign of the result of the round floating-point number to
29 integral value operation is the sign of the operand. These rules
30 shall apply even when operands or results are zero or infinite." */
33 ASSERT (!signbit (ceil (0.0)));
34 ASSERT (!!signbit (ceil (minus_zerod)) == !!signbit (minus_zerod));
35 /* Positive numbers. */
36 ASSERT (!signbit (ceil (0.3)));
37 ASSERT (!signbit (ceil (0.7)));
38 /* Negative numbers. */
39 ASSERT (!!signbit (ceil (-0.3)) == !!signbit (minus_zerod));
40 ASSERT (!!signbit (ceil (-0.7)) == !!signbit (minus_zerod));