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48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
//-----------------------------------------------------------------------------
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// Copyright (C) 2010 Hector Martin "marcan" <marcan@marcansoft.com>
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//
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// This code is licensed to you under the terms of the GNU GPL, version 2 or,
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// at your option, any later version. See the LICENSE.txt file for the text of
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// the license.
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//-----------------------------------------------------------------------------
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// Endianness convenience functions
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//-----------------------------------------------------------------------------
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#ifndef PROXENDIAN_H__
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#define PROXENDIAN_H__
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#include <stdint.h>
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#ifdef _WIN32
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# define HOST_LITTLE_ENDIAN
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#else
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# include <sys/types.h>
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# ifndef BYTE_ORDER
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# define BYTE_ORDER __BYTE_ORDER
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# define LITTLE_ENDIAN __LITTLE_ENDIAN
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# define BIG_ENDIAN __BIG_ENDIAN
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# endif
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# if !defined(BYTE_ORDER) || (BYTE_ORDER != LITTLE_ENDIAN && BYTE_ORDER != BIG_ENDIAN)
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# error Define BYTE_ORDER to be equal to either LITTLE_ENDIAN or BIG_ENDIAN
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# endif
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# if BYTE_ORDER == LITTLE_ENDIAN
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# define HOST_LITTLE_ENDIAN
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# endif
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#endif
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#ifdef HOST_LITTLE_ENDIAN
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# define le16(x) (x)
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# define le32(x) (x)
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#else
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static inline uint16_t le16(uint16_t v) {
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return (v >> 8) | (v << 8);
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}
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static inline uint32_t le32(uint32_t v) {
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return (le16(v) << 16) | (le16(v >> 16));
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}
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#endif // HOST_LITTLE_ENDIAN
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#endif // PROXENDIAN_H__
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