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authorRoland McGrath <roland@gnu.org>2004-09-22 21:21:10 +0000
committerRoland McGrath <roland@gnu.org>2004-09-22 21:21:10 +0000
commitb5707b44d25d7af61b0338c2a2206c036eaf7337 (patch)
treed8b9e865cbc78d64835a63959370865a2a043223 /bits/byteswap.h
parent4ff389feb39f2eb649530b843d478c80c27ab4cf (diff)
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Changes and additions migrated from cvs.devel.redhat.com:/cvs/devel/glibc to fedora-branch
Diffstat (limited to 'bits/byteswap.h')
-rw-r--r--bits/byteswap.h84
1 files changed, 0 insertions, 84 deletions
diff --git a/bits/byteswap.h b/bits/byteswap.h
deleted file mode 100644
index 38d8540130..0000000000
--- a/bits/byteswap.h
+++ /dev/null
@@ -1,84 +0,0 @@
-/* Macros to swap the order of bytes in integer values.
- Copyright (C) 1997, 1998, 2000, 2001, 2002 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library 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.
-
- The GNU C Library 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 the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-#if !defined _BYTESWAP_H && !defined _NETINET_IN_H
-# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead."
-#endif
-
-#ifndef _BITS_BYTESWAP_H
-#define _BITS_BYTESWAP_H 1
-
-/* Swap bytes in 16 bit value. */
-#ifdef __GNUC__
-# define __bswap_16(x) \
- (__extension__ \
- ({ unsigned short int __bsx = (x); \
- ((((__bsx) >> 8) & 0xff) | (((__bsx) & 0xff) << 8)); }))
-#else
-static __inline unsigned short int
-__bswap_16 (unsigned short int __bsx)
-{
- return ((((__bsx) >> 8) & 0xff) | (((__bsx) & 0xff) << 8));
-}
-#endif
-
-/* Swap bytes in 32 bit value. */
-#ifdef __GNUC__
-# define __bswap_32(x) \
- (__extension__ \
- ({ unsigned int __bsx = (x); \
- ((((__bsx) & 0xff000000) >> 24) | (((__bsx) & 0x00ff0000) >> 8) | \
- (((__bsx) & 0x0000ff00) << 8) | (((__bsx) & 0x000000ff) << 24)); }))
-#else
-static __inline unsigned int
-__bswap_32 (unsigned int __bsx)
-{
- return ((((__bsx) & 0xff000000) >> 24) | (((__bsx) & 0x00ff0000) >> 8) |
- (((__bsx) & 0x0000ff00) << 8) | (((__bsx) & 0x000000ff) << 24));
-}
-#endif
-
-#if defined __GNUC__ && __GNUC__ >= 2
-/* Swap bytes in 64 bit value. */
-# define __bswap_constant_64(x) \
- ((((x) & 0xff00000000000000ull) >> 56) \
- | (((x) & 0x00ff000000000000ull) >> 40) \
- | (((x) & 0x0000ff0000000000ull) >> 24) \
- | (((x) & 0x000000ff00000000ull) >> 8) \
- | (((x) & 0x00000000ff000000ull) << 8) \
- | (((x) & 0x0000000000ff0000ull) << 24) \
- | (((x) & 0x000000000000ff00ull) << 40) \
- | (((x) & 0x00000000000000ffull) << 56))
-
-# define __bswap_64(x) \
- (__extension__ \
- ({ union { __extension__ unsigned long long int __ll; \
- unsigned int __l[2]; } __w, __r; \
- if (__builtin_constant_p (x)) \
- __r.__ll = __bswap_constant_64 (x); \
- else \
- { \
- __w.__ll = (x); \
- __r.__l[0] = __bswap_32 (__w.__l[1]); \
- __r.__l[1] = __bswap_32 (__w.__l[0]); \
- } \
- __r.__ll; }))
-#endif
-
-#endif /* _BITS_BYTESWAP_H */