Function core_hash

hash_func.h:46–75

NOTE: @size must be 2^N, otherwise there will be gaps in the output range */

/* NOTE: @size must be 2^N, otherwise there will be gaps in the output range */
static inline unsigned int core_hash(const str *s1, const str *s2, const unsigned int size)
{
	char *p, *end;
	register unsigned v;
	register unsigned h;

	h=0;

	end=s1->s+s1->len;
	for ( p=s1->s ; p<=(end-4) ; p+=4 ){
		v=(*p<<24)+(p[1]<<16)+(p[2]<<8)+p[3];
		ch_h_inc;
	}
	v=0;
	for (; p<end ; p++){ v<<=8; v+=*p;}
	ch_h_inc;

	if (s2) {
		end=s2->s+s2->len;
		for (p=s2->s; p<=(end-4); p+=4){
			v=(*p<<24)+(p[1]<<16)+(p[2]<<8)+p[3];
			ch_h_inc;
		}
		v=0;
		for (; p<end ; p++){ v<<=8; v+=*p;}
		ch_h_inc;
	}
	h=((h)+(h>>11))+((h>>13)+(h>>23));
	return size?((h)&(size-1)):h;
}


static inline unsigned int core_case_hash( str *s1, str *s2, unsigned int size)