diff options
Diffstat (limited to 'insert_string.c')
| -rw-r--r-- | insert_string.c | 12 |
1 files changed, 2 insertions, 10 deletions
diff --git a/insert_string.c b/insert_string.c index e9efd51..774d18a 100644 --- a/insert_string.c +++ b/insert_string.c @@ -15,16 +15,8 @@ * previous key instead of complete recalculation each time. */ -#if defined(__x86_64__) || defined(_M_X64) || defined(__i386) || defined(_M_IX86) -# define UPDATE_HASH(s, h, val) \ - h = (3483 * ((val) & 0xff) +\ - 23081 * (((val) >> 8) & 0xff) +\ - 6954 * (((val) >> 16) & 0xff) +\ - 20947 * (((val) >> 24) & 0xff)); -#else -# define UPDATE_HASH(s, h, val)\ - h = (s->ins_h = ((s->ins_h << s->hash_shift) ^ ((val) >> ((MIN_MATCH - 1) * 8))) & s->hash_mask) -#endif +#define UPDATE_HASH(s, h, val) \ + h = ((val * 2654435761U) >> (32 - s->hash_bits)); #define INSERT_STRING insert_string_c #define QUICK_INSERT_STRING quick_insert_string_c |