#ifndef __HASH_HPP
#define __HASH_HPP

typedef unsigned long hashvalue_t;
#define hashwidth 4

inline hashvalue_t shiftHashValue(hashvalue_t h, char nc) {
	//assumes little-endian
	return (h>>8)|(hashvalue_t(nc)<<24);
}

inline hashvalue_t unsafeHashStringValue(const char *p) {
	return *((hashvalue_t*)p);
}

//assumes that hashvalue_t is 4 chars wide
inline hashvalue_t hashStringValue(const char *p) {
	if(p[0] && p[1] && p[2] && p[3])
		return *((hashvalue_t*)p);
	else {
		hashvalue_t t=0;
		if(p[0]) {
			t=shiftHashValue(t,p[0]);
			if(p[1]) {
				t=shiftHashValue(t,p[1]);
				if(p[2]) {
					t=shiftHashValue(t,p[2]);
					if(p[3]) {
						t=shiftHashValue(t,p[3]);
					} else
						t=shiftHashValue(t,'\0');
				} else
					t=shiftHashValue(t,'\0');
			} else
				t=shiftHashValue(t,'\0');
		} else
			t=shiftHashValue(t,'\0');
		return t;
	}
}


#endif