gf-3.10: src/runtime/c/gu/hash.h

#ifndef GU_HASH_H_
#define GU_HASH_H_

#include <gu/fun.h>

typedef GuWord GuHash;

static inline GuHash
gu_hash_ptr(void* ptr)
{
	return (GuHash) ptr;
}


static inline GuHash
gu_hash_byte(GuHash h, uint8_t u)
{
	// Paul Larson's simple byte hash
	return h * 101 + u;
}


GU_API_DECL GuHash
gu_hash_bytes(GuHash h, const uint8_t* buf, size_t len);

typedef const struct GuHasher GuHasher;

struct GuHasher {
	GuEquality eq;
	GuHash (*hash)(GuHasher* self, const void* p);
};


GU_API_DECL extern GuHasher gu_int_hasher[1];

GU_API_DECL extern GuHasher gu_addr_hasher[1];

GU_API_DECL extern GuHasher gu_word_hasher[1];

#endif // GU_HASH_H_