1 #ifndef _WIMLIB_ENDIANNESS_H
2 #define _WIMLIB_ENDIANNESS_H
8 /* Watch out for conflicts with ntfs-3g headers... */
11 static inline uint16_t
14 return (n << 8) | (n >> 8);
16 #endif /* ifndef bswap16 */
19 static inline uint32_t
22 #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
23 return __builtin_bswap32(n);
25 return (n << 24) | ((n & 0xff00) << 8) | ((n & 0xff0000) >> 8) |
29 #endif /* ifndef bswap32 */
32 static inline uint64_t
35 #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
36 return __builtin_bswap64(n);
38 return (n << 56) | ((n & 0xff00) << 40) | ((n & 0xff0000) << 24) |
39 ((n & 0xff000000) << 8) | ((n & 0xff00000000) >> 8) |
40 ((n & 0xff0000000000) >> 24) |
41 ((n & 0xff000000000000) >> 40) | (n >> 56);
44 #endif /* ifndef bswap64 */
47 #ifndef _NTFS_ENDIANS_H
48 # ifdef WORDS_BIGENDIAN
49 # define le16_to_cpu(n) bswap16(n)
50 # define le32_to_cpu(n) bswap32(n)
51 # define le64_to_cpu(n) bswap64(n)
52 # define cpu_to_le16(n) bswap16(n)
53 # define cpu_to_le32(n) bswap32(n)
54 # define cpu_to_le64(n) bswap64(n)
56 # define cpu_to_le16(n) (n)
57 # define cpu_to_le32(n) (n)
58 # define cpu_to_le64(n) (n)
59 # define le16_to_cpu(n) (n)
60 # define le32_to_cpu(n) (n)
61 # define le64_to_cpu(n) (n)
66 array_cpu_to_le32(uint32_t *p, size_t n)
68 for (size_t i = 0; i < n; i++)
69 p[i] = cpu_to_le32(p[i]);
73 array_le32_to_cpu(uint32_t *p, size_t n)
75 for (size_t i = 0; i < n; i++)
76 p[i] = le32_to_cpu(p[i]);
80 array_cpu_to_le64(uint64_t *p, size_t n)
82 for (size_t i = 0; i < n; i++)
83 p[i] = cpu_to_le64(p[i]);
87 array_le64_to_cpu(uint64_t *p, size_t n)
89 for (size_t i = 0; i < n; i++)
90 p[i] = le64_to_cpu(p[i]);
94 #endif /* _WIMLIB_ENDIANNESS_H */