Hash :
45122e72
Author :
Date :
2023-04-13T23:48:40
Add more reminders to include <config.h>. * lib/aligned-malloc.h: Check that config.h was already included. * lib/careadlinkat.h: Likewise. * lib/filemode.h: Likewise. * lib/freadptr.h: Likewise. * lib/fseterr.h: Likewise. * lib/glthread/lock.h: Likewise. * lib/glthread/tls.h: Likewise. * lib/immutable.h: Likewise. * lib/isapipe.h: Likewise. * lib/isnand-nolibm.h: Likewise. * lib/isnanf-nolibm.h: Likewise. * lib/isnanl-nolibm.h: Likewise. * lib/mbswidth.h: Likewise. * lib/md5.h: Likewise. * lib/minmax.h: Likewise. * lib/msvc-inval.h: Likewise. * lib/msvc-nothrow.h: Likewise. * lib/pathmax.h: Likewise. * lib/sha1.h: Likewise. * lib/sha256.h: Likewise. * lib/sha512.h: Likewise. * lib/size_max.h: Likewise. * lib/sm3.h: Likewise. * lib/stat-size.h: Likewise. * lib/termcap.h: Likewise. * lib/terminfo.h: Likewise. * lib/thread-optim.h: Likewise. * lib/unlocked-io.h: Likewise. * lib/vma-iter.h: Likewise.
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/* Test for NaN that does not need libm.
Copyright (C) 2007-2023 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_ISNANL_IN_LIBC. */
#if !_GL_CONFIG_H_INCLUDED
#error "Please include config.h first."
#endif
#if HAVE_ISNANL_IN_LIBC
/* Get declaration of isnan macro or (older) isnanl 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_isnanl, but clang doesn't. */
# undef isnanl
# define isnanl(x) __builtin_isnan ((long double)(x))
# elif defined isnan
# undef isnanl
# define isnanl(x) isnan ((long double)(x))
# endif
#else
/* Test whether X is a NaN. */
# undef isnanl
# define isnanl rpl_isnanl
extern int isnanl (long double x);
#endif