#define PERL_HASH(hash,str,len) \ STMT_START { \ register char *s_PeRlHaSh = str; \ register I32 i_PeRlHaSh = len; \ register U32 hash_PeRlHaSh = 0; \ while (i_PeRlHaSh--) \ hash_PeRlHaSh = hash_PeRlHaSh * 33 + *s_PeRlHaSh++; \ (hash) = hash_PeRlHaSh; \ } STMT_END #### /* FYI: This is the "One-at-a-Time" algorithm by Bob Jenkins */ /* from requirements by Colin Plumb. */ /* (http://burtleburtle.net/bob/hash/doobs.html) */ #define PERL_HASH(hash,str,len) \ STMT_START { \ register const char *s_PeRlHaSh = str; \ register I32 i_PeRlHaSh = len; \ register U32 hash_PeRlHaSh = 0; \ while (i_PeRlHaSh--) { \ hash_PeRlHaSh += *s_PeRlHaSh++; \ hash_PeRlHaSh += (hash_PeRlHaSh << 10); \ hash_PeRlHaSh ^= (hash_PeRlHaSh >> 6); \ } \ hash_PeRlHaSh += (hash_PeRlHaSh << 3); \ hash_PeRlHaSh ^= (hash_PeRlHaSh >> 11); \ (hash) = (hash_PeRlHaSh + (hash_PeRlHaSh << 15)); \ } STMT_END