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2022-untitled-game/code/game/engine/hash.h

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C
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2022-08-02 16:35:50 +00:00
#pragma once
#define HASH_CSTR(str) murmur_hash64(str, strlen(str), 0)
#define HASH_STR(str, len) murmur_hash64(str, len, 0)
const uint64_t HASH_UNUSED = 0xFFFFFFFFFFFFFFFFU;
enum {
NEAREST_PRIME_8 = 11,
NEAREST_PRIME_16 = 17,
NEAREST_PRIME_32 = 37,
NEAREST_PRIME_64 = 67,
NEAREST_PRIME_128 = 131,
NEAREST_PRIME_256 = 257,
NEAREST_PRIME_512 = 521,
NEAREST_PRIME_1024 = 1031
};
typedef struct hash {
int count;
int capacity;
int element_size;
uint64_t* keys;
void* data;
} hash_t;
hash_t
hash_create(size_t capacity, size_t element_size);
void
hash_reset(hash_t* hash);
void
hash_add(hash_t* hash, uint64_t key, void* element);
void*
hash_get(hash_t hash, uint64_t key);