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 2  
 3  // Copyright 2010 Google LLC
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30  
31  // Original author: Jim Blandy <jim@mozilla.com> <jimb@red-bean.com>
32  
33  // byteswap.h: Overloaded functions for conveniently byteswapping values.
34  
35  #ifndef COMMON_MAC_BYTESWAP_H_
36  #define COMMON_MAC_BYTESWAP_H_
37  
38  #ifdef __APPLE__
39  #include <libkern/OSByteOrder.h>
40  
41  static inline uint16_t ByteSwap(uint16_t v) { return OSSwapInt16(v); }
42  static inline uint32_t ByteSwap(uint32_t v) { return OSSwapInt32(v); }
43  static inline uint64_t ByteSwap(uint64_t v) { return OSSwapInt64(v); }
44  static inline int16_t  ByteSwap(int16_t  v) { return OSSwapInt16(v); }
45  static inline int32_t  ByteSwap(int32_t  v) { return OSSwapInt32(v); }
46  static inline int64_t  ByteSwap(int64_t  v) { return OSSwapInt64(v); }
47  
48  #elif defined(__linux__)
49  // For NXByteOrder
50  #include <architecture/byte_order.h>
51  #include <stdint.h>
52  #include <endian.h>
53  #include_next <byteswap.h>
54  
55  static inline uint16_t ByteSwap(uint16_t v) { return bswap_16(v); }
56  static inline uint32_t ByteSwap(uint32_t v) { return bswap_32(v); }
57  static inline uint64_t ByteSwap(uint64_t v) { return bswap_64(v); }
58  static inline int16_t  ByteSwap(int16_t  v) { return bswap_16(v); }
59  static inline int32_t  ByteSwap(int32_t  v) { return bswap_32(v); }
60  static inline int64_t  ByteSwap(int64_t  v) { return bswap_64(v); }
61  
62  static inline NXByteOrder NXHostByteOrder() {
63  #ifdef __LITTLE_ENDIAN
64    return NX_LittleEndian;
65  #else
66    return NX_BigEndian;
67  #endif
68  }
69  
70  #endif  // __APPLE__
71  
72  #endif  // COMMON_MAC_BYTESWAP_H_