jaiden
/
apk-tools
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

portability: add endian.h wrapper

cute-signatures
Ariadne Conill 2021-12-29 11:23:18 -06:00 committed by Timo Teräs
parent a7a0c0a6ca
commit cbdc4e9f25
1 changed files with 61 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

61
portability/endian.h Normal file
View File

@ -0,0 +1,61 @@
/* endian.h - portable endian routines
*
* Copyright (C) 2005-2008 Natanael Copa <n@tanael.org>
* Copyright (C) 2008-2011 Timo Teräs <timo.teras@iki.fi>
* Copyright (C) 2011 Rich Felker
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-only
*/
#ifdef __linux__
# include_next <endian.h>
#else
#pragma once
#include <stdint.h>
static __inline uint16_t __portable_bswap16(uint16_t __x)
{
return (__x<<8) | (__x>>8);
}
static __inline uint32_t __portable_bswap32(uint32_t __x)
{
return (__x>>24) | (__x>>8&0xff00) | (__x<<8&0xff0000) | (__x<<24);
}
static __inline uint64_t __portable_bswap64(uint64_t __x)
{
return (__portable_bswap32(__x)+0ULL)<<32 | __portable_bswap32(__x>>32);
}
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
# define htobe16(x) __portable_bswap16(x)
# define be16toh(x) __portable_bswap16(x)
# define htobe32(x) __portable_bswap32(x)
# define be32toh(x) __portable_bswap32(x)
# define htobe64(x) __portable_bswap64(x)
# define be64toh(x) __portable_bswap64(x)
# define htole16(x) (uint16_t)(x)
# define le16toh(x) (uint16_t)(x)
# define htole32(x) (uint32_t)(x)
# define le32toh(x) (uint32_t)(x)
# define htole64(x) (uint64_t)(x)
# define le64toh(x) (uint64_t)(x)
#else
# define htobe16(x) (uint16_t)(x)
# define be16toh(x) (uint16_t)(x)
# define htobe32(x) (uint32_t)(x)
# define be32toh(x) (uint32_t)(x)
# define htobe64(x) (uint64_t)(x)
# define be64toh(x) (uint64_t)(x)
# define htole16(x) __portable_bswap16(x)
# define le16toh(x) __portable_bswap16(x)
# define htole32(x) __portable_bswap32(x)
# define le32toh(x) __portable_bswap32(x)
# define htole64(x) __portable_bswap64(x)
# define le64toh(x) __portable_bswap64(x)
#endif
#endif