1 #ifndef _WIMLIB_ENDIANNESS_H
2 #define _WIMLIB_ENDIANNESS_H
8 /* Watch out for conflicts with ntfs-3g headers... */
11 static inline uint16_t bswap16(uint16_t n)
13 return (n << 8) | (n >> 8);
15 #endif /* ifndef bswap16 */
18 static inline uint32_t bswap32(uint32_t n)
20 #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
21 return __builtin_bswap32(n);
23 return (n << 24) | ((n & 0xff00) << 8) | ((n & 0xff0000) >> 8) |
27 #endif /* ifndef bswap32 */
30 static inline uint64_t bswap64(uint64_t n)
32 #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
33 return __builtin_bswap64(n);
35 return (n << 56) | ((n & 0xff00) << 40) | ((n & 0xff0000) << 24) |
36 ((n & 0xff000000) << 8) | ((n & 0xff00000000) >> 8) |
37 ((n & 0xff0000000000) >> 24) |
38 ((n & 0xff000000000000) >> 40) | (n >> 56);
41 #endif /* ifndef bswap64 */
44 #ifndef _NTFS_ENDIANS_H
45 # ifdef WORDS_BIGENDIAN
46 # define le16_to_cpu(n) bswap16(n)
47 # define le32_to_cpu(n) bswap32(n)
48 # define le64_to_cpu(n) bswap64(n)
49 # define cpu_to_le16(n) bswap16(n)
50 # define cpu_to_le32(n) bswap32(n)
51 # define cpu_to_le64(n) bswap64(n)
53 # define cpu_to_le16(n) (n)
54 # define cpu_to_le32(n) (n)
55 # define cpu_to_le64(n) (n)
56 # define le16_to_cpu(n) (n)
57 # define le32_to_cpu(n) (n)
58 # define le64_to_cpu(n) (n)
62 static inline void array_cpu_to_le32(uint32_t *p, size_t n)
64 for (size_t i = 0; i < n; i++)
65 p[i] = cpu_to_le32(p[i]);
68 static inline void array_le32_to_cpu(uint32_t *p, size_t n)
70 for (size_t i = 0; i < n; i++)
71 p[i] = le32_to_cpu(p[i]);
74 static inline void array_cpu_to_le64(uint64_t *p, size_t n)
76 for (size_t i = 0; i < n; i++)
77 p[i] = cpu_to_le64(p[i]);
80 static inline void array_le64_to_cpu(uint64_t *p, size_t n)
82 for (size_t i = 0; i < n; i++)
83 p[i] = le64_to_cpu(p[i]);
87 #endif /* _WIMLIB_ENDIANNESS_H */