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rocksdb/util/murmurhash.h

32 lines
854 B

/*
Murmurhash from http://sites.google.com/site/murmurhash/
All code is released to the public domain. For business purposes, Murmurhash is
under the MIT license.
*/
#ifndef MURMURHASH_H
#define MURMURHASH_H
#include <stdint.h>
#if defined(__x86_64__)
#define MURMUR_HASH MurmurHash64A
uint64_t MurmurHash64A ( const void * key, int len, unsigned int seed );
#define MurmurHash MurmurHash64A
typedef uint64_t murmur_t;
#elif defined(__i386__)
#define MURMUR_HASH MurmurHash2
unsigned int MurmurHash2 ( const void * key, int len, unsigned int seed );
#define MurmurHash MurmurHash2
typedef unsigned int murmur_t;
#else
#define MURMUR_HASH MurmurHashNeutral2
unsigned int MurmurHashNeutral2 ( const void * key, int len, unsigned int seed );
#define MurmurHash MurmurHashNeutral2
typedef unsigned int murmur_t;
#endif
#endif /* MURMURHASH_H */