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Linux/tools/include/tools/le_byteshift.h

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  1 #ifndef _TOOLS_LE_BYTESHIFT_H
  2 #define _TOOLS_LE_BYTESHIFT_H
  3 
  4 #include <stdint.h>
  5 
  6 static inline uint16_t __get_unaligned_le16(const uint8_t *p)
  7 {
  8         return p[0] | p[1] << 8;
  9 }
 10 
 11 static inline uint32_t __get_unaligned_le32(const uint8_t *p)
 12 {
 13         return p[0] | p[1] << 8 | p[2] << 16 | p[3] << 24;
 14 }
 15 
 16 static inline uint64_t __get_unaligned_le64(const uint8_t *p)
 17 {
 18         return (uint64_t)__get_unaligned_le32(p + 4) << 32 |
 19                __get_unaligned_le32(p);
 20 }
 21 
 22 static inline void __put_unaligned_le16(uint16_t val, uint8_t *p)
 23 {
 24         *p++ = val;
 25         *p++ = val >> 8;
 26 }
 27 
 28 static inline void __put_unaligned_le32(uint32_t val, uint8_t *p)
 29 {
 30         __put_unaligned_le16(val >> 16, p + 2);
 31         __put_unaligned_le16(val, p);
 32 }
 33 
 34 static inline void __put_unaligned_le64(uint64_t val, uint8_t *p)
 35 {
 36         __put_unaligned_le32(val >> 32, p + 4);
 37         __put_unaligned_le32(val, p);
 38 }
 39 
 40 static inline uint16_t get_unaligned_le16(const void *p)
 41 {
 42         return __get_unaligned_le16((const uint8_t *)p);
 43 }
 44 
 45 static inline uint32_t get_unaligned_le32(const void *p)
 46 {
 47         return __get_unaligned_le32((const uint8_t *)p);
 48 }
 49 
 50 static inline uint64_t get_unaligned_le64(const void *p)
 51 {
 52         return __get_unaligned_le64((const uint8_t *)p);
 53 }
 54 
 55 static inline void put_unaligned_le16(uint16_t val, void *p)
 56 {
 57         __put_unaligned_le16(val, p);
 58 }
 59 
 60 static inline void put_unaligned_le32(uint32_t val, void *p)
 61 {
 62         __put_unaligned_le32(val, p);
 63 }
 64 
 65 static inline void put_unaligned_le64(uint64_t val, void *p)
 66 {
 67         __put_unaligned_le64(val, p);
 68 }
 69 
 70 #endif /* _TOOLS_LE_BYTESHIFT_H */
 71 

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