vasilito
facf0c92e0
Red Bear OS is a full fork. All sources must be available from git clone with zero network access. Removed gitignore rules that excluded fetched source trees under recipes/*/source/, local/recipes/kde/*/source/, local/recipes/qt/*/source/, and vendor source trees. Build artifacts (target/, build/, source.tar, *.o, *.so) remain excluded. 127291 files added — kernel, relibc, base, bootloader, pkgar, all KDE/Qt frameworks, mesa, wayland, DRM drivers, and every other recipe source.
47 lines
1.7 KiB
C
47 lines
1.7 KiB
C
/* Test for NaN that does not need libm.
|
|
Copyright (C) 2007-2024 Free Software Foundation, Inc.
|
|
|
|
This file is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as
|
|
published by the Free Software Foundation; either version 2.1 of the
|
|
License, or (at your option) any later version.
|
|
|
|
This file is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with this program. If not, see <https://www.gnu.org/licenses/>. */
|
|
|
|
/* This file uses HAVE_ISNANF_IN_LIBC. */
|
|
#if !_GL_CONFIG_H_INCLUDED
|
|
#error "Please include config.h first."
|
|
#endif
|
|
|
|
#if HAVE_ISNANF_IN_LIBC
|
|
/* Get declaration of isnan macro or (older) isnanf function. */
|
|
# include <math.h>
|
|
# if (__GNUC__ >= 4) || (__clang_major__ >= 4)
|
|
/* GCC >= 4.0 and clang provide a type-generic built-in for isnan.
|
|
GCC >= 4.0 also provides __builtin_isnanf, but clang doesn't. */
|
|
# undef isnanf
|
|
# define isnanf(x) __builtin_isnan ((float)(x))
|
|
# elif defined isnan
|
|
# undef isnanf
|
|
# define isnanf(x) isnan ((float)(x))
|
|
# else
|
|
/* Get declaration of isnanf(), if not declared in <math.h>. */
|
|
# if defined __sgi
|
|
/* We can't include <ieeefp.h>, because it conflicts with our definition of
|
|
isnand. Therefore declare isnanf separately. */
|
|
extern int isnanf (float x);
|
|
# endif
|
|
# endif
|
|
#else
|
|
/* Test whether X is a NaN. */
|
|
# undef isnanf
|
|
# define isnanf rpl_isnanf
|
|
extern int isnanf (float x);
|
|
#endif
|