unsigned int SDBMHash(char *str){ 	unsigned int hash = 0;  	while (*str) {  	// equivalent to: 	 	hash = 65599*hash + (*str++); 	 	 hash = (*str++) + (hash << 6) + (hash << 16) - hash;  	  }     return (hash & 0x7FFFFFFF);    } // RS Hash Functionunsigned int RSHash(char *str){	 unsigned int b = 378551; 	 	unsigned int a = 63689;	   unsigned int hash = 0;	    while (*str) { 	    hash = hash * a + (*str++); a *= b;	   }     return (hash & 0x7FFFFFFF);} // JS Hash Functionunsigned int JSHash(char *str){  unsigned int hash = 1315423911;    while (*str) {    	hash ^= ((hash << 5) + (*str++) + (hash >> 2));    }   return (hash & 0x7FFFFFFF);} // P. J. Weinberger Hash Functionunsigned int PJWHash(char *str){ 	unsigned int BitsInUnignedInt = (unsigned int)(sizeof(unsigned int) * 8);  		unsigned int ThreeQuarters = (unsigned int)((BitsInUnignedInt * 3) / 4);  		  unsigned int OneEighth = (unsigned int)(BitsInUnignedInt / 8);  		unsigned int HighBits = (unsigned int)(0xFFFFFFFF) << (BitsInUnignedInt - OneEighth);  	unsigned int hash = 0;  		unsigned int test = 0;  	  while (*str) { 	   hash = (hash << OneEighth) + (*str++);  	   if ((test = hash & HighBits) != 0 { 	    hash = ((hash ^ (test >> ThreeQuarters)) & (~HighBits));  	    }  	  }     return (hash & 0x7FFFFFFF);   } // ELF Hash Functionunsigned int ELFHash(char *str){ 	 unsigned int hash = 0; 		  unsigned int x = 0; 	   while (*str) { 	  	  hash = (hash << 4) + (*str++); 	   		  if ((x = hash & 0xF0000000L) != 0) { 	    		 	 hash ^= (x >> 24); 	       			hash &= ~x; 	        	  } 	      }  	return (hash & 0x7FFFFFFF); } // BKDR Hash Functionunsigned int BKDRHash(char *str){	unsigned int seed = 131; 	// 31 131 1313 13131 131313 etc.. 	unsigned int hash = 0; 	while (*str) {		 hash = hash * seed + (*str++);	 }     return (hash & 0x7FFFFFFF);} // DJB Hash Functionunsigned int DJBHash(char *str){ 		unsigned int hash = 5381; 		  while (*str) { 		  	 hash += (hash << 5) + (*str++);		  } 	return (hash & 0x7FFFFFFF);} // AP Hash Functionunsigned int APHash(char *str){	 unsigned int hash = 0; 		 int i; 	  for (i=0; *str; i++) {	   		if ((i & 1) == 0) { 	   			hash ^= ((hash << 7) ^ (*str++) ^ (hash >> 3)); 	   		} 	   		   		else {	   			 hash ^= (~((hash << 11) ^ (*str++) ^ (hash >> 5))); 	   		     } 	  }      return (hash & 0x7FFFFFFF);}