记录一个求 hash function 的网页

http://www.partow.net/programming/hashfunctions/

例：

unsigned int DJBHash(char* str, unsigned int len)
{
   unsigned int hash = 5381;
   unsigned int i    = 0;

   for(i = 0; i < len; str++, i++)
   {
      hash = ((hash << 5) + hash) + (*str);
   }

   return hash;
}
/* End Of DJB Hash Function */