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Member "gnuastro-0.9/bootstrapped/tests/isnanf-nolibm.h" (17 Apr 2019, 1474 Bytes) of package /linux/privat/gnuastro-0.9.tar.lz:
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side-by-side code changes report for "isnanf-nolibm.h": 0.8_vs_0.9
1 /* Test for NaN that does not need libm.
2 Copyright (C) 2007-2019 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 <https://www.gnu.org/licenses/>. */
17 #if HAVE_ISNANF_IN_LIBC
18 /* Get declaration of isnan macro or (older) isnanf function. */
19 # include <math.h>
20 # if __GNUC__ >= 4
21 /* GCC 4.0 and newer provides three built-ins for isnan. */
22 # undef isnanf
23 # define isnanf(x) __builtin_isnanf ((float)(x))
24 # elif defined isnan
25 # undef isnanf
26 # define isnanf(x) isnan ((float)(x))
27 # else
28 /* Get declaration of isnanf(), if not declared in <math.h>. */
29 # if defined __sgi
30 /* We can't include <ieeefp.h>, because it conflicts with our definition of
31 isnand. Therefore declare isnanf separately. */
32 extern int isnanf (float x);
33 # endif
34 # endif
36 /* Test whether X is a NaN. */
37 # undef isnanf
38 # define isnanf rpl_isnanf
39 extern int isnanf (float x);