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[BZ #6442]

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* string/endian.h: Add macros for fixed-size endian conversion.
	* bits/byteswap.h: Allow inclusion from <endian.h>.
	* sysdeps/i386/bits/byteswap.h: Likewise.
	* sysdeps/ia64/bits/byteswap.h: Likewise.
	* sysdeps/s390/bits/byteswap.h: Likewise.
	* sysdeps/x86_64/bits/byteswap.h: Likewise.
	* string/Makefile (tests): Add tst-endian.
	* string/tst-endian.c: New file.
This commit is contained in:
Ulrich Drepper
2008-05-15 02:54:33 +00:00
parent c8d49f05e7
commit 2f9a1be867
11 changed files with 445 additions and 14 deletions
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38
string/endian.h
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@ -1,4 +1,4 @@
/* Copyright (C) 1992, 1996, 1997, 2000 Free Software Foundation, Inc.
/* Copyright (C) 1992, 1996, 1997, 2000, 2008 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
@ -55,4 +55,40 @@
# define __LONG_LONG_PAIR(HI, LO) HI, LO
#endif
/* Conversion interfaces. */
#include <bits/byteswap.h>
#if __BYTE_ORDER == __LITTLE_ENDIAN
# define htobe16(x) __bswap_16 (x)
# define htole16(x) (x)
# define be16toh(x) __bswap_16 (x)
# define le16toh(x) (x)
# define htobe32(x) __bswap_32 (x)
# define htole32(x) (x)
# define be32toh(x) __bswap_32 (x)
# define le32toh(x) (x)
# define htobe64(x) __bswap_64 (x)
# define htole64(x) (x)
# define be64toh(x) __bswap_64 (x)
# define le64toh(x) (x)
#else
# define htobe16(x) (x)
# define htole16(x) __bswap_16 (x)
# define be16toh(x) (x)
# define le16toh(x) __bswap_16 (x)
# define htobe32(x) (x)
# define htole32(x) __bswap_32 (x)
# define be32toh(x) (x)
# define le32toh(x) __bswap_32 (x)
# define htobe64(x) (x)
# define htole64(x) __bswap_64 (x)
# define be64toh(x) (x)
# define le64toh(x) __bswap_64 (x)
#endif
#endif /* endian.h */