哈希----字符串----time33
//此处只是获得了字符串的hash值,但是该如何散列到hash表中呢?哪个算法会好些?!
1 //在处理以字符串为键值的哈希时,times33哈希算法有着极快的计算效率和很好的哈希分布 2 3 //小写英文单词 4 #if 1 5 unsigned int str_hash(const char* key) 6 { 7 unsigned int hashval = 0; 8 while(*key) 9 { 10 hash = ((hash << 5) + hash) + (unsigned int)*key++; 11 } 12 13 return hash; 14 } 15 16 #else 17 18 unsigned int str_has(const char* key) 19 { 20 unsigned int hashval = 0; 21 while(*key) 22 { 23 hash = (hash << 7 + hash) + (unsigned int)*key++; 24 } 25 26 return hash; 27 } 28 29 #endif