| 1 | #ifndef CRC32_P_H_ |
|---|---|
| 2 | #define CRC32_P_H_ |
| 3 | |
| 4 | #define GF2_DIM 32 /* dimension of GF(2) vectors (length of CRC) */ |
| 5 | |
| 6 | |
| 7 | static inline uint32_t gf2_matrix_times(const uint32_t *mat, uint32_t vec) { |
| 8 | uint32_t sum = 0; |
| 9 | while (vec) { |
| 10 | if (vec & 1) |
| 11 | sum ^= *mat; |
| 12 | vec >>= 1; |
| 13 | mat++; |
| 14 | } |
| 15 | return sum; |
| 16 | } |
| 17 | |
| 18 | |
| 19 | #endif /* CRC32_P_H_ */ |
| 20 |