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//-----------------------------------------------------------------------------
// 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)
//-----------------------------------------------------------------------------
namespace cdec {
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 );
namespace {
#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wunused-function"
#endif
template <unsigned L> inline void cdecMurmurHashNativeBackend(const void * key, int len, uint32_t seed, void * out) {
MurmurHash3_x86_128(key, len, seed, out);
}
template <> inline void cdecMurmurHashNativeBackend<4>(const void * key, int len, uint32_t seed, void * out) {
MurmurHash3_x64_128(key, len, seed, out);
}
#ifdef __clang__
#pragma clang diagnostic pop
#endif
} // namespace
inline uint64_t MurmurHash3_64(const void * key, int len, uint32_t seed) {
uint64_t out[2];
cdecMurmurHashNativeBackend<sizeof(void*)>(key, len, seed, &out);
return out[0];
}
inline void MurmurHash3_128(const void * key, int len, uint32_t seed, void * out) {
cdecMurmurHashNativeBackend<sizeof(void*)>(key, len, seed, out);
}
}
//-----------------------------------------------------------------------------
#endif // _MURMURHASH3_H_
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