54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
//-----------------------------------------------------------------------------
|
|
// MurmurHash3 was written by Austin Appleby, and is placed in the public
|
|
// domain. The author hereby disclaims copyright to this source code.
|
|
|
|
#ifndef _MURMURHASH3_H_
|
|
#define _MURMURHASH3_H_
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Platform-specific functions and macros
|
|
|
|
// Microsoft Visual Studio
|
|
|
|
#if defined(_MSC_VER) && (_MSC_VER < 1600)
|
|
|
|
typedef unsigned char uint8_t;
|
|
typedef unsigned int uint32_t;
|
|
typedef unsigned __int64 uint64_t;
|
|
|
|
// Other compilers
|
|
|
|
#else // defined(_MSC_VER)
|
|
|
|
#include <stdint.h>
|
|
|
|
#endif // !defined(_MSC_VER)
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
void MurmurHash3_x86_32(const void* key, int len, uint32_t seed, void* out);
|
|
|
|
void MurmurHash3_x86_128(const void* key, int len, uint32_t seed, void* out);
|
|
|
|
void MurmurHash3_x64_128(const void* key, int len, uint32_t seed, void* out);
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#ifdef _WIN64
|
|
static inline
|
|
unsigned long long murmurhash(const void* data, int len)
|
|
{
|
|
unsigned long long hash[2];
|
|
MurmurHash3_x64_128(data, len, 0x1337, hash);
|
|
#else //x86
|
|
static inline
|
|
unsigned long murmurhash(const void* data, int len)
|
|
{
|
|
unsigned int hash[1];
|
|
MurmurHash3_x86_32(data, len, 0x1337, hash);
|
|
#endif //_WIN64
|
|
return hash[0];
|
|
}
|
|
|
|
#endif // _MURMURHASH3_H_
|