1 /* Test of rounding to nearest, breaking ties away from zero.
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, 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. */
23 #include "minus-zero.h"
29 DECL_LONG_DOUBLE_ROUNDING
31 BEGIN_LONG_DOUBLE_ROUNDING ();
33 /* See IEEE 754, section 6.3:
34 "the sign of the result of the round floating-point number to
35 integral value operation is the sign of the operand. These rules
36 shall apply even when operands or results are zero or infinite." */
39 ASSERT (!signbit (roundl (0.0L)));
40 ASSERT (!!signbit (roundl (minus_zerol)) == !!signbit (minus_zerol));
41 /* Positive numbers. */
42 ASSERT (!signbit (roundl (0.3L)));
43 ASSERT (!signbit (roundl (0.7L)));
44 /* Negative numbers. */
45 ASSERT (!!signbit (roundl (-0.3L)) == !!signbit (minus_zerol));
46 ASSERT (!!signbit (roundl (-0.7L)) == !!signbit (minus_zerol));