1// -*- mode: c++ -*-
2
3// Copyright (c) 2010, Google Inc.
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31
32// Original author: Jim Blandy <jim@mozilla.com> <jimb@red-bean.com>
33
34// byteswap.h: Overloaded functions for conveniently byteswapping values.
35
36#ifndef COMMON_MAC_BYTESWAP_H_
37#define COMMON_MAC_BYTESWAP_H_
38
39#ifdef __APPLE__
40#include <libkern/OSByteOrder.h>
41
42static inline uint16_t ByteSwap(uint16_t v) { return OSSwapInt16(v); }
43static inline uint32_t ByteSwap(uint32_t v) { return OSSwapInt32(v); }
44static inline uint64_t ByteSwap(uint64_t v) { return OSSwapInt64(v); }
45static inline int16_t ByteSwap(int16_t v) { return OSSwapInt16(v); }
46static inline int32_t ByteSwap(int32_t v) { return OSSwapInt32(v); }
47static inline int64_t ByteSwap(int64_t v) { return OSSwapInt64(v); }
48
49#elif defined(__linux__)
50// For NXByteOrder
51#include <architecture/byte_order.h>
52#include <stdint.h>
53#include <endian.h>
54#include_next <byteswap.h>
55
56static inline uint16_t ByteSwap(uint16_t v) { return bswap_16(v); }
57static inline uint32_t ByteSwap(uint32_t v) { return bswap_32(v); }
58static inline uint64_t ByteSwap(uint64_t v) { return bswap_64(v); }
59static inline int16_t ByteSwap(int16_t v) { return bswap_16(v); }
60static inline int32_t ByteSwap(int32_t v) { return bswap_32(v); }
61static inline int64_t ByteSwap(int64_t v) { return bswap_64(v); }
62
63static inline NXByteOrder NXHostByteOrder() {
64#ifdef __LITTLE_ENDIAN
65 return NX_LittleEndian;
66#else
67 return NX_BigEndian;
68#endif
69}
70
71#endif // __APPLE__
72
73#endif // COMMON_MAC_BYTESWAP_H_
74