1 /* Test of splitting a double into fraction and mantissa.
2 Copyright (C) 2012 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 "isnanf-nolibm.h"
22 #include "minus-zero.h"
30 /* [MX] shaded specification in POSIX. */
36 mantissa = frexpf (NaNf (), &exp);
37 ASSERT (isnanf (mantissa));
44 mantissa = frexpf (0.0f, &exp);
45 ASSERT (mantissa == 0.0f);
46 ASSERT (!signbit (mantissa));
52 mantissa = frexpf (minus_zerof, &exp);
53 ASSERT (mantissa == 0.0f);
54 ASSERT (!!signbit (mantissa) == !!signbit (minus_zerof));
62 mantissa = frexpf (Infinityf (), &exp);
63 ASSERT (mantissa == Infinityf ());