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f377d02227
* include/atomic.h: Define atomic_increment_val, atomic_decrement_val, and atomic_dealy is not already defined. * sysdeps/i386/i486/bits/atomic.h: Define atomic_delay. * sysdeps/x86_64/bits/atomic.h: Likewise. * miscd/sys/cdefs.h (__NTH): New macro. (__THROW): Define using nothrow attribute for C code and gcc >= 3.2. (__REDIRECT_NTH): New macro. * argp/argp.h: Use __NTH and __REDIRECT_NTH where necessary. * ctype/ctype.h: Likewise. * dirent/dirent.h: Likewise. * io/fcntl.h: Likewise. * io/sys/sendfile.h: Likewise. * io/sys/stat.h: Likewise. * io/sys/statfs.h: Likewise. * io/sys/statvfs.h: Likewise. * libio/bits/stdio.h: Likewise. * misc/sys/mman.h: Likewise. * posix/unistd.h: Likewise. * resource/sys/resource.h: Likewise. * rt/aio.h: Likewise. * signal/signal.h: Likewise. * stdlib/stdlib.h: Likewise. * string/argz.h: Likewise. * string/string.h: Likewise. * sysdeps/generic/inttypes.h: Likewise. * sysdeps/i386/fpu/bits/mathinline.h: Likewise. * sysdeps/powerpc/fpu/bits/mathinline.h: Likewise. * sysdeps/s390/fpu/bits/mathinline.h: Likewise. * sysdeps/x86_64/fpu/bits/mathinline.h: Likewise. * sysdeps/unix/sysv/linux/bits/socket.h: Likewise. * sysdeps/unix/sysv/linux/bits/sys/sysmacros.h: Likewise. * wcsmbs/wchar.h: Likewise. * sysdeps/generic/glob.c: Use __PMT isntead of __P where appropriate. * resolv/gethnamaddr.c (getanswer): Remove __P use in variable definition. * io/sys/poll.h: Remove __THROW from poll prototype, it's a cancellation point.
54 lines
1.7 KiB
C
54 lines
1.7 KiB
C
/* Inline math functions for x86-64.
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Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Andreas Jaeger <aj@suse.de>, 2002.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifndef _MATH_H
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# error "Never use <bits/mathinline.h> directly; include <math.h> instead."
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#endif
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#ifdef __cplusplus
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# define __MATH_INLINE __inline
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#else
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# define __MATH_INLINE extern __inline
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#endif
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#if defined __USE_ISOC99 && defined __GNUC__ && __GNUC__ >= 2
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/* Test for negative number. Used in the signbit() macro. */
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__MATH_INLINE int
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__NTH (__signbitf (float __x))
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{
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__extension__ union { float __f; int __i; } __u = { __f: __x };
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return __u.__i < 0;
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}
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__MATH_INLINE int
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__NTH (__signbit (double __x))
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{
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__extension__ union { double __d; int __i[2]; } __u = { __d: __x };
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return __u.__i[1] < 0;
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}
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__MATH_INLINE int
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__NTH (__signbitl (long double __x))
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{
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__extension__ union { long double __l; int __i[3]; } __u = { __l: __x };
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return (__u.__i[2] & 0x8000) != 0;
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}
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#endif
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