// Copyright (c) 2014 Google, Inc. // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to deal // in the Software without restriction, including without limitation the rights // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell // copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN // THE SOFTWARE. // // FarmHash, by Geoff Pike #include "farmhash.h" // FARMHASH ASSUMPTIONS: Modify as needed, or use -DFARMHASH_ASSUME_SSE42 etc. // Note that if you use -DFARMHASH_ASSUME_SSE42 you likely need -msse42 // (or its equivalent for your compiler); if you use -DFARMHASH_ASSUME_AESNI // you likely need -maes (or its equivalent for your compiler). #ifdef FARMHASH_ASSUME_SSSE3 #undef FARMHASH_ASSUME_SSSE3 #define FARMHASH_ASSUME_SSSE3 1 #endif #ifdef FARMHASH_ASSUME_SSE41 #undef FARMHASH_ASSUME_SSE41 #define FARMHASH_ASSUME_SSE41 1 #endif #ifdef FARMHASH_ASSUME_SSE42 #undef FARMHASH_ASSUME_SSE42 #define FARMHASH_ASSUME_SSE42 1 #endif #ifdef FARMHASH_ASSUME_AESNI #undef FARMHASH_ASSUME_AESNI #define FARMHASH_ASSUME_AESNI 1 #endif #ifdef FARMHASH_ASSUME_AVX #undef FARMHASH_ASSUME_AVX #define FARMHASH_ASSUME_AVX 1 #endif #if !defined(FARMHASH_CAN_USE_CXX11) && defined(LANG_CXX11) #define FARMHASH_CAN_USE_CXX11 1 #else #undef FARMHASH_CAN_USE_CXX11 #define FARMHASH_CAN_USE_CXX11 0 #endif // FARMHASH PORTABILITY LAYER: Runtime error if misconfigured #ifndef FARMHASH_DIE_IF_MISCONFIGURED #define FARMHASH_DIE_IF_MISCONFIGURED do { *(char*)(len % 17) = 0; } while (0) #endif // FARMHASH PORTABILITY LAYER: "static inline" or similar #ifndef STATIC_INLINE #define STATIC_INLINE static inline #endif // FARMHASH PORTABILITY LAYER: LIKELY and UNLIKELY #if !defined(LIKELY) #if defined(FARMHASH_NO_BUILTIN_EXPECT) || (defined(FARMHASH_OPTIONAL_BUILTIN_EXPECT) && !defined(HAVE_BUILTIN_EXPECT)) #define LIKELY(x) (x) #else #define LIKELY(x) (__builtin_expect(!!(x), 1)) #endif #endif #undef UNLIKELY #define UNLIKELY(x) !LIKELY(!(x)) // FARMHASH PORTABILITY LAYER: endianness and byteswapping functions #ifdef WORDS_BIGENDIAN #undef FARMHASH_BIG_ENDIAN #define FARMHASH_BIG_ENDIAN 1 #endif #if defined(FARMHASH_LITTLE_ENDIAN) && defined(FARMHASH_BIG_ENDIAN) #error #endif #if !defined(FARMHASH_LITTLE_ENDIAN) && !defined(FARMHASH_BIG_ENDIAN) #define FARMHASH_UNKNOWN_ENDIAN 1 #endif #if !defined(bswap_32) || !defined(bswap_64) #undef bswap_32 #undef bswap_64 #if defined(HAVE_BUILTIN_BSWAP) || defined(__clang__) || \ (defined(__GNUC__) && ((__GNUC__ == 4 && __GNUC_MINOR__ >= 8) || \ __GNUC__ >= 5)) // Easy case for bswap: no header file needed. #define bswap_32(x) __builtin_bswap32(x) #define bswap_64(x) __builtin_bswap64(x) #endif #endif #if defined(FARMHASH_UNKNOWN_ENDIAN) || !defined(bswap_64) #ifdef _MSC_VER #undef bswap_32 #undef bswap_64 #define bswap_32(x) _byteswap_ulong(x) #define bswap_64(x) _byteswap_uint64(x) #elif defined(__APPLE__) // Mac OS X / Darwin features #include #undef bswap_32 #undef bswap_64 #define bswap_32(x) OSSwapInt32(x) #define bswap_64(x) OSSwapInt64(x) #elif defined(__sun) || defined(sun) #include #undef bswap_32 #undef bswap_64 #define bswap_32(x) BSWAP_32(x) #define bswap_64(x) BSWAP_64(x) #elif defined(__FreeBSD__) #include #undef bswap_32 #undef bswap_64 #define bswap_32(x) bswap32(x) #define bswap_64(x) bswap64(x) #elif defined(__OpenBSD__) #include #undef bswap_32 #undef bswap_64 #define bswap_32(x) swap32(x) #define bswap_64(x) swap64(x) #elif defined(__NetBSD__) #include #include #if defined(__BSWAP_RENAME) && !defined(__bswap_32) #undef bswap_32 #undef bswap_64 #define bswap_32(x) bswap32(x) #define bswap_64(x) bswap64(x) #endif #else #undef bswap_32 #undef bswap_64 #include #endif #ifdef WORDS_BIGENDIAN #define FARMHASH_BIG_ENDIAN 1 #endif #endif #ifdef FARMHASH_BIG_ENDIAN #define uint32_in_expected_order(x) (bswap_32(x)) #define uint64_in_expected_order(x) (bswap_64(x)) #else #define uint32_in_expected_order(x) (x) #define uint64_in_expected_order(x) (x) #endif namespace NAMESPACE_FOR_HASH_FUNCTIONS { STATIC_INLINE uint64_t Fetch64(const char *p) { uint64_t result; memcpy(&result, p, sizeof(result)); return uint64_in_expected_order(result); } STATIC_INLINE uint32_t Fetch32(const char *p) { uint32_t result; memcpy(&result, p, sizeof(result)); return uint32_in_expected_order(result); } STATIC_INLINE uint32_t Bswap32(uint32_t val) { return bswap_32(val); } STATIC_INLINE uint64_t Bswap64(uint64_t val) { return bswap_64(val); } // FARMHASH PORTABILITY LAYER: bitwise rot STATIC_INLINE uint32_t BasicRotate32(uint32_t val, int shift) { // Avoid shifting by 32: doing so yields an undefined result. return shift == 0 ? val : ((val >> shift) | (val << (32 - shift))); } STATIC_INLINE uint64_t BasicRotate64(uint64_t val, int shift) { // Avoid shifting by 64: doing so yields an undefined result. return shift == 0 ? val : ((val >> shift) | (val << (64 - shift))); } #if defined(_MSC_VER) && defined(FARMHASH_ROTR) STATIC_INLINE uint32_t Rotate32(uint32_t val, int shift) { return sizeof(unsigned long) == sizeof(val) ? _lrotr(val, shift) : BasicRotate32(val, shift); } STATIC_INLINE uint64_t Rotate64(uint64_t val, int shift) { return sizeof(unsigned long) == sizeof(val) ? _lrotr(val, shift) : BasicRotate64(val, shift); } #else STATIC_INLINE uint32_t Rotate32(uint32_t val, int shift) { return BasicRotate32(val, shift); } STATIC_INLINE uint64_t Rotate64(uint64_t val, int shift) { return BasicRotate64(val, shift); } #endif } // namespace NAMESPACE_FOR_HASH_FUNCTIONS // FARMHASH PORTABILITY LAYER: debug mode or max speed? // One may use -DFARMHASH_DEBUG=1 or -DFARMHASH_DEBUG=0 to force the issue. #if !defined(FARMHASH_DEBUG) && (!defined(NDEBUG) || defined(_DEBUG)) #define FARMHASH_DEBUG 1 #endif #undef debug_mode #if FARMHASH_DEBUG #define debug_mode 1 #else #define debug_mode 0 #endif // PLATFORM-SPECIFIC FUNCTIONS AND MACROS #undef x86_64 #if defined (__x86_64) || defined (__x86_64__) #define x86_64 1 #else #define x86_64 0 #endif #undef x86 #if defined(__i386__) || defined(__i386) || defined(__X86__) #define x86 1 #else #define x86 x86_64 #endif #if !defined(is_64bit) #define is_64bit (x86_64 || (sizeof(void*) == 8)) #endif #undef can_use_ssse3 #if defined(__SSSE3__) || defined(FARMHASH_ASSUME_SSSE3) #include #define can_use_ssse3 1 // Now we can use _mm_hsub_epi16 and so on. #else #define can_use_ssse3 0 #endif #undef can_use_sse41 #if defined(__SSE4_1__) || defined(FARMHASH_ASSUME_SSE41) #include #define can_use_sse41 1 // Now we can use _mm_insert_epi64 and so on. #else #define can_use_sse41 0 #endif #undef can_use_sse42 #if defined(__SSE4_2__) || defined(FARMHASH_ASSUME_SSE42) #include #define can_use_sse42 1 // Now we can use _mm_crc32_u{32,16,8}. And on 64-bit platforms, _mm_crc32_u64. #else #define can_use_sse42 0 #endif #undef can_use_aesni #if defined(__AES__) || defined(FARMHASH_ASSUME_AESNI) #include #define can_use_aesni 1 // Now we can use _mm_aesimc_si128 and so on. #else #define can_use_aesni 0 #endif #undef can_use_avx #if defined(__AVX__) || defined(FARMHASH_ASSUME_AVX) #include #define can_use_avx 1 #else #define can_use_avx 0 #endif #if can_use_ssse3 || can_use_sse41 || can_use_sse42 || can_use_aesni || can_use_avx STATIC_INLINE __m128i Fetch128(const char* s) { return _mm_loadu_si128(reinterpret_cast(s)); } #endif // Building blocks for hash functions // std::swap() was in but is in from C++11 on. #if !FARMHASH_CAN_USE_CXX11 #include #endif #undef PERMUTE3 #define PERMUTE3(a, b, c) do { std::swap(a, b); std::swap(a, c); } while (0) namespace NAMESPACE_FOR_HASH_FUNCTIONS { // Some primes between 2^63 and 2^64 for various uses. static const uint64_t k0 = 0xc3a5c85c97cb3127ULL; static const uint64_t k1 = 0xb492b66fbe98f273ULL; static const uint64_t k2 = 0x9ae16a3b2f90404fULL; // Magic numbers for 32-bit hashing. Copied from Murmur3. static const uint32_t c1 = 0xcc9e2d51; static const uint32_t c2 = 0x1b873593; // A 32-bit to 32-bit integer hash copied from Murmur3. STATIC_INLINE uint32_t fmix(uint32_t h) { h ^= h >> 16; h *= 0x85ebca6b; h ^= h >> 13; h *= 0xc2b2ae35; h ^= h >> 16; return h; } STATIC_INLINE uint32_t Mur(uint32_t a, uint32_t h) { // Helper from Murmur3 for combining two 32-bit values. a *= c1; a = Rotate32(a, 17); a *= c2; h ^= a; h = Rotate32(h, 19); return h * 5 + 0xe6546b64; } template STATIC_INLINE T DebugTweak(T x) { if (debug_mode) { if (sizeof(x) == 4) { x = ~Bswap32(x * c1); } else { x = ~Bswap64(x * k1); } } return x; } template <> uint128_t DebugTweak(uint128_t x) { if (debug_mode) { uint64_t y = DebugTweak(Uint128Low64(x)); uint64_t z = DebugTweak(Uint128High64(x)); y += z; z += y; x = Uint128(y, z * k1); } return x; } } // namespace NAMESPACE_FOR_HASH_FUNCTIONS using namespace std; using namespace NAMESPACE_FOR_HASH_FUNCTIONS; namespace farmhashna { #undef Fetch #define Fetch Fetch64 #undef Rotate #define Rotate Rotate64 #undef Bswap #define Bswap Bswap64 STATIC_INLINE uint64_t ShiftMix(uint64_t val) { return val ^ (val >> 47); } STATIC_INLINE uint64_t HashLen16(uint64_t u, uint64_t v) { return Hash128to64(Uint128(u, v)); } STATIC_INLINE uint64_t HashLen16(uint64_t u, uint64_t v, uint64_t mul) { // Murmur-inspired hashing. uint64_t a = (u ^ v) * mul; a ^= (a >> 47); uint64_t b = (v ^ a) * mul; b ^= (b >> 47); b *= mul; return b; } STATIC_INLINE uint64_t HashLen0to16(const char *s, size_t len) { if (len >= 8) { uint64_t mul = k2 + len * 2; uint64_t a = Fetch(s) + k2; uint64_t b = Fetch(s + len - 8); uint64_t c = Rotate(b, 37) * mul + a; uint64_t d = (Rotate(a, 25) + b) * mul; return HashLen16(c, d, mul); } if (len >= 4) { uint64_t mul = k2 + len * 2; uint64_t a = Fetch32(s); return HashLen16(len + (a << 3), Fetch32(s + len - 4), mul); } if (len > 0) { uint8_t a = s[0]; uint8_t b = s[len >> 1]; uint8_t c = s[len - 1]; uint32_t y = static_cast(a) + (static_cast(b) << 8); uint32_t z = len + (static_cast(c) << 2); return ShiftMix(y * k2 ^ z * k0) * k2; } return k2; } // This probably works well for 16-byte strings as well, but it may be overkill // in that case. STATIC_INLINE uint64_t HashLen17to32(const char *s, size_t len) { uint64_t mul = k2 + len * 2; uint64_t a = Fetch(s) * k1; uint64_t b = Fetch(s + 8); uint64_t c = Fetch(s + len - 8) * mul; uint64_t d = Fetch(s + len - 16) * k2; return HashLen16(Rotate(a + b, 43) + Rotate(c, 30) + d, a + Rotate(b + k2, 18) + c, mul); } // Return a 16-byte hash for 48 bytes. Quick and dirty. // Callers do best to use "random-looking" values for a and b. STATIC_INLINE pair WeakHashLen32WithSeeds( uint64_t w, uint64_t x, uint64_t y, uint64_t z, uint64_t a, uint64_t b) { a += w; b = Rotate(b + a + z, 21); uint64_t c = a; a += x; a += y; b += Rotate(a, 44); return make_pair(a + z, b + c); } // Return a 16-byte hash for s[0] ... s[31], a, and b. Quick and dirty. STATIC_INLINE pair WeakHashLen32WithSeeds( const char* s, uint64_t a, uint64_t b) { return WeakHashLen32WithSeeds(Fetch(s), Fetch(s + 8), Fetch(s + 16), Fetch(s + 24), a, b); } // Return an 8-byte hash for 33 to 64 bytes. STATIC_INLINE uint64_t HashLen33to64(const char *s, size_t len) { uint64_t mul = k2 + len * 2; uint64_t a = Fetch(s) * k2; uint64_t b = Fetch(s + 8); uint64_t c = Fetch(s + len - 8) * mul; uint64_t d = Fetch(s + len - 16) * k2; uint64_t y = Rotate(a + b, 43) + Rotate(c, 30) + d; uint64_t z = HashLen16(y, a + Rotate(b + k2, 18) + c, mul); uint64_t e = Fetch(s + 16) * mul; uint64_t f = Fetch(s + 24); uint64_t g = (y + Fetch(s + len - 32)) * mul; uint64_t h = (z + Fetch(s + len - 24)) * mul; return HashLen16(Rotate(e + f, 43) + Rotate(g, 30) + h, e + Rotate(f + a, 18) + g, mul); } uint64_t Hash64(const char *s, size_t len) { const uint64_t seed = 81; if (len <= 32) { if (len <= 16) { return HashLen0to16(s, len); } else { return HashLen17to32(s, len); } } else if (len <= 64) { return HashLen33to64(s, len); } // For strings over 64 bytes we loop. Internal state consists of // 56 bytes: v, w, x, y, and z. uint64_t x = seed; uint64_t y = seed * k1 + 113; uint64_t z = ShiftMix(y * k2 + 113) * k2; pair v = make_pair(0, 0); pair w = make_pair(0, 0); x = x * k2 + Fetch(s); // Set end so that after the loop we have 1 to 64 bytes left to process. const char* end = s + ((len - 1) / 64) * 64; const char* last64 = end + ((len - 1) & 63) - 63; assert(s + len - 64 == last64); do { x = Rotate(x + y + v.first + Fetch(s + 8), 37) * k1; y = Rotate(y + v.second + Fetch(s + 48), 42) * k1; x ^= w.second; y += v.first + Fetch(s + 40); z = Rotate(z + w.first, 33) * k1; v = WeakHashLen32WithSeeds(s, v.second * k1, x + w.first); w = WeakHashLen32WithSeeds(s + 32, z + w.second, y + Fetch(s + 16)); std::swap(z, x); s += 64; } while (s != end); uint64_t mul = k1 + ((z & 0xff) << 1); // Make s point to the last 64 bytes of input. s = last64; w.first += ((len - 1) & 63); v.first += w.first; w.first += v.first; x = Rotate(x + y + v.first + Fetch(s + 8), 37) * mul; y = Rotate(y + v.second + Fetch(s + 48), 42) * mul; x ^= w.second * 9; y += v.first * 9 + Fetch(s + 40); z = Rotate(z + w.first, 33) * mul; v = WeakHashLen32WithSeeds(s, v.second * mul, x + w.first); w = WeakHashLen32WithSeeds(s + 32, z + w.second, y + Fetch(s + 16)); std::swap(z, x); return HashLen16(HashLen16(v.first, w.first, mul) + ShiftMix(y) * k0 + z, HashLen16(v.second, w.second, mul) + x, mul); } uint64_t Hash64WithSeeds(const char *s, size_t len, uint64_t seed0, uint64_t seed1); uint64_t Hash64WithSeed(const char *s, size_t len, uint64_t seed) { return Hash64WithSeeds(s, len, k2, seed); } uint64_t Hash64WithSeeds(const char *s, size_t len, uint64_t seed0, uint64_t seed1) { return HashLen16(Hash64(s, len) - seed0, seed1); } } // namespace farmhashna namespace farmhashuo { #undef Fetch #define Fetch Fetch64 #undef Rotate #define Rotate Rotate64 STATIC_INLINE uint64_t H(uint64_t x, uint64_t y, uint64_t mul, int r) { uint64_t a = (x ^ y) * mul; a ^= (a >> 47); uint64_t b = (y ^ a) * mul; return Rotate(b, r) * mul; } uint64_t Hash64WithSeeds(const char *s, size_t len, uint64_t seed0, uint64_t seed1) { if (len <= 64) { return farmhashna::Hash64WithSeeds(s, len, seed0, seed1); } // For strings over 64 bytes we loop. Internal state consists of // 64 bytes: u, v, w, x, y, and z. uint64_t x = seed0; uint64_t y = seed1 * k2 + 113; uint64_t z = farmhashna::ShiftMix(y * k2) * k2; pair v = make_pair(seed0, seed1); pair w = make_pair(0, 0); uint64_t u = x - z; x *= k2; uint64_t mul = k2 + (u & 0x82); // Set end so that after the loop we have 1 to 64 bytes left to process. const char* end = s + ((len - 1) / 64) * 64; const char* last64 = end + ((len - 1) & 63) - 63; assert(s + len - 64 == last64); do { uint64_t a0 = Fetch(s); uint64_t a1 = Fetch(s + 8); uint64_t a2 = Fetch(s + 16); uint64_t a3 = Fetch(s + 24); uint64_t a4 = Fetch(s + 32); uint64_t a5 = Fetch(s + 40); uint64_t a6 = Fetch(s + 48); uint64_t a7 = Fetch(s + 56); x += a0 + a1; y += a2; z += a3; v.first += a4; v.second += a5 + a1; w.first += a6; w.second += a7; x = Rotate(x, 26); x *= 9; y = Rotate(y, 29); z *= mul; v.first = Rotate(v.first, 33); v.second = Rotate(v.second, 30); w.first ^= x; w.first *= 9; z = Rotate(z, 32); z += w.second; w.second += z; z *= 9; std::swap(u, y); z += a0 + a6; v.first += a2; v.second += a3; w.first += a4; w.second += a5 + a6; x += a1; y += a7; y += v.first; v.first += x - y; v.second += w.first; w.first += v.second; w.second += x - y; x += w.second; w.second = Rotate(w.second, 34); std::swap(u, z); s += 64; } while (s != end); // Make s point to the last 64 bytes of input. s = last64; u *= 9; v.second = Rotate(v.second, 28); v.first = Rotate(v.first, 20); w.first += ((len - 1) & 63); u += y; y += u; x = Rotate(y - x + v.first + Fetch(s + 8), 37) * mul; y = Rotate(y ^ v.second ^ Fetch(s + 48), 42) * mul; x ^= w.second * 9; y += v.first + Fetch(s + 40); z = Rotate(z + w.first, 33) * mul; v = farmhashna::WeakHashLen32WithSeeds(s, v.second * mul, x + w.first); w = farmhashna::WeakHashLen32WithSeeds(s + 32, z + w.second, y + Fetch(s + 16)); return H(farmhashna::HashLen16(v.first + x, w.first ^ y, mul) + z - u, H(v.second + y, w.second + z, k2, 30) ^ x, k2, 31); } uint64_t Hash64WithSeed(const char *s, size_t len, uint64_t seed) { return len <= 64 ? farmhashna::Hash64WithSeed(s, len, seed) : Hash64WithSeeds(s, len, 0, seed); } uint64_t Hash64(const char *s, size_t len) { return len <= 64 ? farmhashna::Hash64(s, len) : Hash64WithSeeds(s, len, 81, 0); } } // namespace farmhashuo namespace farmhashxo { #undef Fetch #define Fetch Fetch64 #undef Rotate #define Rotate Rotate64 STATIC_INLINE uint64_t H32(const char *s, size_t len, uint64_t mul, uint64_t seed0 = 0, uint64_t seed1 = 0) { uint64_t a = Fetch(s) * k1; uint64_t b = Fetch(s + 8); uint64_t c = Fetch(s + len - 8) * mul; uint64_t d = Fetch(s + len - 16) * k2; uint64_t u = Rotate(a + b, 43) + Rotate(c, 30) + d + seed0; uint64_t v = a + Rotate(b + k2, 18) + c + seed1; a = farmhashna::ShiftMix((u ^ v) * mul); b = farmhashna::ShiftMix((v ^ a) * mul); return b; } // Return an 8-byte hash for 33 to 64 bytes. STATIC_INLINE uint64_t HashLen33to64(const char *s, size_t len) { uint64_t mul0 = k2 - 30; uint64_t mul1 = k2 - 30 + 2 * len; uint64_t h0 = H32(s, 32, mul0); uint64_t h1 = H32(s + len - 32, 32, mul1); return ((h1 * mul1) + h0) * mul1; } // Return an 8-byte hash for 65 to 96 bytes. STATIC_INLINE uint64_t HashLen65to96(const char *s, size_t len) { uint64_t mul0 = k2 - 114; uint64_t mul1 = k2 - 114 + 2 * len; uint64_t h0 = H32(s, 32, mul0); uint64_t h1 = H32(s + 32, 32, mul1); uint64_t h2 = H32(s + len - 32, 32, mul1, h0, h1); return (h2 * 9 + (h0 >> 17) + (h1 >> 21)) * mul1; } uint64_t Hash64(const char *s, size_t len) { if (len <= 32) { if (len <= 16) { return farmhashna::HashLen0to16(s, len); } else { return farmhashna::HashLen17to32(s, len); } } else if (len <= 64) { return HashLen33to64(s, len); } else if (len <= 96) { return HashLen65to96(s, len); } else if (len <= 256) { return farmhashna::Hash64(s, len); } else { return farmhashuo::Hash64(s, len); } } uint64_t Hash64WithSeeds(const char *s, size_t len, uint64_t seed0, uint64_t seed1) { return farmhashuo::Hash64WithSeeds(s, len, seed0, seed1); } uint64_t Hash64WithSeed(const char *s, size_t len, uint64_t seed) { return farmhashuo::Hash64WithSeed(s, len, seed); } } // namespace farmhashxo namespace farmhashte { #if !can_use_sse41 || !x86_64 uint64_t Hash64(const char *s, size_t len) { FARMHASH_DIE_IF_MISCONFIGURED; return s == NULL ? 0 : len; } uint64_t Hash64WithSeed(const char *s, size_t len, uint64_t seed) { FARMHASH_DIE_IF_MISCONFIGURED; return seed + Hash64(s, len); } uint64_t Hash64WithSeeds(const char *s, size_t len, uint64_t seed0, uint64_t seed1) { FARMHASH_DIE_IF_MISCONFIGURED; return seed0 + seed1 + Hash64(s, len); } #else #undef Fetch #define Fetch Fetch64 #undef Rotate #define Rotate Rotate64 #undef Bswap #define Bswap Bswap64 // Helpers for data-parallel operations (1x 128 bits or 2x 64 or 4x 32). STATIC_INLINE __m128i Add(__m128i x, __m128i y) { return _mm_add_epi64(x, y); } STATIC_INLINE __m128i Xor(__m128i x, __m128i y) { return _mm_xor_si128(x, y); } STATIC_INLINE __m128i Mul(__m128i x, __m128i y) { return _mm_mullo_epi32(x, y); } STATIC_INLINE __m128i Shuf(__m128i x, __m128i y) { return _mm_shuffle_epi8(y, x); } // Requires n >= 256. Requires SSE4.1. Should be slightly faster if the // compiler uses AVX instructions (e.g., use the -mavx flag with GCC). STATIC_INLINE uint64_t Hash64Long(const char* s, size_t n, uint64_t seed0, uint64_t seed1) { const __m128i kShuf = _mm_set_epi8(4, 11, 10, 5, 8, 15, 6, 9, 12, 2, 14, 13, 0, 7, 3, 1); const __m128i kMult = _mm_set_epi8(0xbd, 0xd6, 0x33, 0x39, 0x45, 0x54, 0xfa, 0x03, 0x34, 0x3e, 0x33, 0xed, 0xcc, 0x9e, 0x2d, 0x51); uint64_t seed2 = (seed0 + 113) * (seed1 + 9); uint64_t seed3 = (Rotate(seed0, 23) + 27) * (Rotate(seed1, 30) + 111); __m128i d0 = _mm_cvtsi64_si128(seed0); __m128i d1 = _mm_cvtsi64_si128(seed1); __m128i d2 = Shuf(kShuf, d0); __m128i d3 = Shuf(kShuf, d1); __m128i d4 = Xor(d0, d1); __m128i d5 = Xor(d1, d2); __m128i d6 = Xor(d2, d4); __m128i d7 = _mm_set1_epi32(seed2 >> 32); __m128i d8 = Mul(kMult, d2); __m128i d9 = _mm_set1_epi32(seed3 >> 32); __m128i d10 = _mm_set1_epi32(seed3); __m128i d11 = Add(d2, _mm_set1_epi32(seed2)); const char* end = s + (n & ~static_cast(255)); do { __m128i z; z = Fetch128(s); d0 = Add(d0, z); d1 = Shuf(kShuf, d1); d2 = Xor(d2, d0); d4 = Xor(d4, z); d4 = Xor(d4, d1); std::swap(d0, d6); z = Fetch128(s + 16); d5 = Add(d5, z); d6 = Shuf(kShuf, d6); d8 = Shuf(kShuf, d8); d7 = Xor(d7, d5); d0 = Xor(d0, z); d0 = Xor(d0, d6); std::swap(d5, d11); z = Fetch128(s + 32); d1 = Add(d1, z); d2 = Shuf(kShuf, d2); d4 = Shuf(kShuf, d4); d5 = Xor(d5, z); d5 = Xor(d5, d2); std::swap(d10, d4); z = Fetch128(s + 48); d6 = Add(d6, z); d7 = Shuf(kShuf, d7); d0 = Shuf(kShuf, d0); d8 = Xor(d8, d6); d1 = Xor(d1, z); d1 = Add(d1, d7); z = Fetch128(s + 64); d2 = Add(d2, z); d5 = Shuf(kShuf, d5); d4 = Add(d4, d2); d6 = Xor(d6, z); d6 = Xor(d6, d11); std::swap(d8, d2); z = Fetch128(s + 80); d7 = Xor(d7, z); d8 = Shuf(kShuf, d8); d1 = Shuf(kShuf, d1); d0 = Add(d0, d7); d2 = Add(d2, z); d2 = Add(d2, d8); std::swap(d1, d7); z = Fetch128(s + 96); d4 = Shuf(kShuf, d4); d6 = Shuf(kShuf, d6); d8 = Mul(kMult, d8); d5 = Xor(d5, d11); d7 = Xor(d7, z); d7 = Add(d7, d4); std::swap(d6, d0); z = Fetch128(s + 112); d8 = Add(d8, z); d0 = Shuf(kShuf, d0); d2 = Shuf(kShuf, d2); d1 = Xor(d1, d8); d10 = Xor(d10, z); d10 = Xor(d10, d0); std::swap(d11, d5); z = Fetch128(s + 128); d4 = Add(d4, z); d5 = Shuf(kShuf, d5); d7 = Shuf(kShuf, d7); d6 = Add(d6, d4); d8 = Xor(d8, z); d8 = Xor(d8, d5); std::swap(d4, d10); z = Fetch128(s + 144); d0 = Add(d0, z); d1 = Shuf(kShuf, d1); d2 = Add(d2, d0); d4 = Xor(d4, z); d4 = Xor(d4, d1); z = Fetch128(s + 160); d5 = Add(d5, z); d6 = Shuf(kShuf, d6); d8 = Shuf(kShuf, d8); d7 = Xor(d7, d5); d0 = Xor(d0, z); d0 = Xor(d0, d6); std::swap(d2, d8); z = Fetch128(s + 176); d1 = Add(d1, z); d2 = Shuf(kShuf, d2); d4 = Shuf(kShuf, d4); d5 = Mul(kMult, d5); d5 = Xor(d5, z); d5 = Xor(d5, d2); std::swap(d7, d1); z = Fetch128(s + 192); d6 = Add(d6, z); d7 = Shuf(kShuf, d7); d0 = Shuf(kShuf, d0); d8 = Add(d8, d6); d1 = Xor(d1, z); d1 = Xor(d1, d7); std::swap(d0, d6); z = Fetch128(s + 208); d2 = Add(d2, z); d5 = Shuf(kShuf, d5); d4 = Xor(d4, d2); d6 = Xor(d6, z); d6 = Xor(d6, d9); std::swap(d5, d11); z = Fetch128(s + 224); d7 = Add(d7, z); d8 = Shuf(kShuf, d8); d1 = Shuf(kShuf, d1); d0 = Xor(d0, d7); d2 = Xor(d2, z); d2 = Xor(d2, d8); std::swap(d10, d4); z = Fetch128(s + 240); d3 = Add(d3, z); d4 = Shuf(kShuf, d4); d6 = Shuf(kShuf, d6); d7 = Mul(kMult, d7); d5 = Add(d5, d3); d7 = Xor(d7, z); d7 = Xor(d7, d4); std::swap(d3, d9); s += 256; } while (s != end); d6 = Add(Mul(kMult, d6), _mm_cvtsi64_si128(n)); if (n % 256 != 0) { d7 = Add(_mm_shuffle_epi32(d8, (0 << 6) + (3 << 4) + (2 << 2) + (1 << 0)), d7); d8 = Add(Mul(kMult, d8), _mm_cvtsi64_si128(farmhashxo::Hash64(s, n % 256))); } __m128i t[8]; d0 = Mul(kMult, Shuf(kShuf, Mul(kMult, d0))); d3 = Mul(kMult, Shuf(kShuf, Mul(kMult, d3))); d9 = Mul(kMult, Shuf(kShuf, Mul(kMult, d9))); d1 = Mul(kMult, Shuf(kShuf, Mul(kMult, d1))); d0 = Add(d11, d0); d3 = Xor(d7, d3); d9 = Add(d8, d9); d1 = Add(d10, d1); d4 = Add(d3, d4); d5 = Add(d9, d5); d6 = Xor(d1, d6); d2 = Add(d0, d2); t[0] = d0; t[1] = d3; t[2] = d9; t[3] = d1; t[4] = d4; t[5] = d5; t[6] = d6; t[7] = d2; return farmhashxo::Hash64(reinterpret_cast(t), sizeof(t)); } uint64_t Hash64(const char *s, size_t len) { // Empirically, farmhashxo seems faster until length 512. return len >= 512 ? Hash64Long(s, len, k2, k1) : farmhashxo::Hash64(s, len); } uint64_t Hash64WithSeed(const char *s, size_t len, uint64_t seed) { return len >= 512 ? Hash64Long(s, len, k1, seed) : farmhashxo::Hash64WithSeed(s, len, seed); } uint64_t Hash64WithSeeds(const char *s, size_t len, uint64_t seed0, uint64_t seed1) { return len >= 512 ? Hash64Long(s, len, seed0, seed1) : farmhashxo::Hash64WithSeeds(s, len, seed0, seed1); } #endif } // namespace farmhashte namespace farmhashnt { #if !can_use_sse41 || !x86_64 uint32_t Hash32(const char *s, size_t len) { FARMHASH_DIE_IF_MISCONFIGURED; return s == NULL ? 0 : len; } uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) { FARMHASH_DIE_IF_MISCONFIGURED; return seed + Hash32(s, len); } #else uint32_t Hash32(const char *s, size_t len) { return static_cast(farmhashte::Hash64(s, len)); } uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) { return static_cast(farmhashte::Hash64WithSeed(s, len, seed)); } #endif } // namespace farmhashnt namespace farmhashmk { #undef Fetch #define Fetch Fetch32 #undef Rotate #define Rotate Rotate32 #undef Bswap #define Bswap Bswap32 STATIC_INLINE uint32_t Hash32Len13to24(const char *s, size_t len, uint32_t seed = 0) { uint32_t a = Fetch(s - 4 + (len >> 1)); uint32_t b = Fetch(s + 4); uint32_t c = Fetch(s + len - 8); uint32_t d = Fetch(s + (len >> 1)); uint32_t e = Fetch(s); uint32_t f = Fetch(s + len - 4); uint32_t h = d * c1 + len + seed; a = Rotate(a, 12) + f; h = Mur(c, h) + a; a = Rotate(a, 3) + c; h = Mur(e, h) + a; a = Rotate(a + f, 12) + d; h = Mur(b ^ seed, h) + a; return fmix(h); } STATIC_INLINE uint32_t Hash32Len0to4(const char *s, size_t len, uint32_t seed = 0) { uint32_t b = seed; uint32_t c = 9; for (size_t i = 0; i < len; i++) { signed char v = s[i]; b = b * c1 + v; c ^= b; } return fmix(Mur(b, Mur(len, c))); } STATIC_INLINE uint32_t Hash32Len5to12(const char *s, size_t len, uint32_t seed = 0) { uint32_t a = len, b = len * 5, c = 9, d = b + seed; a += Fetch(s); b += Fetch(s + len - 4); c += Fetch(s + ((len >> 1) & 4)); return fmix(seed ^ Mur(c, Mur(b, Mur(a, d)))); } uint32_t Hash32(const char *s, size_t len) { if (len <= 24) { return len <= 12 ? (len <= 4 ? Hash32Len0to4(s, len) : Hash32Len5to12(s, len)) : Hash32Len13to24(s, len); } // len > 24 uint32_t h = len, g = c1 * len, f = g; uint32_t a0 = Rotate(Fetch(s + len - 4) * c1, 17) * c2; uint32_t a1 = Rotate(Fetch(s + len - 8) * c1, 17) * c2; uint32_t a2 = Rotate(Fetch(s + len - 16) * c1, 17) * c2; uint32_t a3 = Rotate(Fetch(s + len - 12) * c1, 17) * c2; uint32_t a4 = Rotate(Fetch(s + len - 20) * c1, 17) * c2; h ^= a0; h = Rotate(h, 19); h = h * 5 + 0xe6546b64; h ^= a2; h = Rotate(h, 19); h = h * 5 + 0xe6546b64; g ^= a1; g = Rotate(g, 19); g = g * 5 + 0xe6546b64; g ^= a3; g = Rotate(g, 19); g = g * 5 + 0xe6546b64; f += a4; f = Rotate(f, 19) + 113; size_t iters = (len - 1) / 20; do { uint32_t a = Fetch(s); uint32_t b = Fetch(s + 4); uint32_t c = Fetch(s + 8); uint32_t d = Fetch(s + 12); uint32_t e = Fetch(s + 16); h += a; g += b; f += c; h = Mur(d, h) + e; g = Mur(c, g) + a; f = Mur(b + e * c1, f) + d; f += g; g += f; s += 20; } while (--iters != 0); g = Rotate(g, 11) * c1; g = Rotate(g, 17) * c1; f = Rotate(f, 11) * c1; f = Rotate(f, 17) * c1; h = Rotate(h + g, 19); h = h * 5 + 0xe6546b64; h = Rotate(h, 17) * c1; h = Rotate(h + f, 19); h = h * 5 + 0xe6546b64; h = Rotate(h, 17) * c1; return h; } uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) { if (len <= 24) { if (len >= 13) return Hash32Len13to24(s, len, seed * c1); else if (len >= 5) return Hash32Len5to12(s, len, seed); else return Hash32Len0to4(s, len, seed); } uint32_t h = Hash32Len13to24(s, 24, seed ^ len); return Mur(Hash32(s + 24, len - 24) + seed, h); } } // namespace farmhashmk namespace farmhashsu { #if !can_use_sse42 || !can_use_aesni uint32_t Hash32(const char *s, size_t len) { FARMHASH_DIE_IF_MISCONFIGURED; return s == NULL ? 0 : len; } uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) { FARMHASH_DIE_IF_MISCONFIGURED; return seed + Hash32(s, len); } #else #undef Fetch #define Fetch Fetch32 #undef Rotate #define Rotate Rotate32 #undef Bswap #define Bswap Bswap32 // Helpers for data-parallel operations (4x 32-bits). STATIC_INLINE __m128i Add(__m128i x, __m128i y) { return _mm_add_epi32(x, y); } STATIC_INLINE __m128i Xor(__m128i x, __m128i y) { return _mm_xor_si128(x, y); } STATIC_INLINE __m128i Or(__m128i x, __m128i y) { return _mm_or_si128(x, y); } STATIC_INLINE __m128i Mul(__m128i x, __m128i y) { return _mm_mullo_epi32(x, y); } STATIC_INLINE __m128i Mul5(__m128i x) { return Add(x, _mm_slli_epi32(x, 2)); } STATIC_INLINE __m128i RotateLeft(__m128i x, int c) { return Or(_mm_slli_epi32(x, c), _mm_srli_epi32(x, 32 - c)); } STATIC_INLINE __m128i Rol17(__m128i x) { return RotateLeft(x, 17); } STATIC_INLINE __m128i Rol19(__m128i x) { return RotateLeft(x, 19); } STATIC_INLINE __m128i Shuffle0321(__m128i x) { return _mm_shuffle_epi32(x, (0 << 6) + (3 << 4) + (2 << 2) + (1 << 0)); } uint32_t Hash32(const char *s, size_t len) { const uint32_t seed = 81; if (len <= 24) { return len <= 12 ? (len <= 4 ? farmhashmk::Hash32Len0to4(s, len) : farmhashmk::Hash32Len5to12(s, len)) : farmhashmk::Hash32Len13to24(s, len); } if (len < 40) { uint32_t a = len, b = seed * c2, c = a + b; a += Fetch(s + len - 4); b += Fetch(s + len - 20); c += Fetch(s + len - 16); uint32_t d = a; a = NAMESPACE_FOR_HASH_FUNCTIONS::Rotate32(a, 21); a = Mur(a, Mur(b, _mm_crc32_u32(c, d))); a += Fetch(s + len - 12); b += Fetch(s + len - 8); d += a; a += d; b = Mur(b, d) * c2; a = _mm_crc32_u32(a, b + c); return farmhashmk::Hash32Len13to24(s, (len + 1) / 2, a) + b; } #undef Mulc1 #define Mulc1(x) Mul((x), cc1) #undef Mulc2 #define Mulc2(x) Mul((x), cc2) #undef Murk #define Murk(a, h) \ Add(k, \ Mul5( \ Rol19( \ Xor( \ Mulc2( \ Rol17( \ Mulc1(a))), \ (h))))) const __m128i cc1 = _mm_set1_epi32(c1); const __m128i cc2 = _mm_set1_epi32(c2); __m128i h = _mm_set1_epi32(seed); __m128i g = _mm_set1_epi32(c1 * seed); __m128i f = g; __m128i k = _mm_set1_epi32(0xe6546b64); __m128i q; if (len < 80) { __m128i a = Fetch128(s); __m128i b = Fetch128(s + 16); __m128i c = Fetch128(s + (len - 15) / 2); __m128i d = Fetch128(s + len - 32); __m128i e = Fetch128(s + len - 16); h = Add(h, a); g = Add(g, b); q = g; g = Shuffle0321(g); f = Add(f, c); __m128i be = Add(b, Mulc1(e)); h = Add(h, f); f = Add(f, h); h = Add(Murk(d, h), e); k = Xor(k, _mm_shuffle_epi8(g, f)); g = Add(Xor(c, g), a); f = Add(Xor(be, f), d); k = Add(k, be); k = Add(k, _mm_shuffle_epi8(f, h)); f = Add(f, g); g = Add(g, f); g = Add(_mm_set1_epi32(len), Mulc1(g)); } else { // len >= 80 // The following is loosely modelled after farmhashmk::Hash32. size_t iters = (len - 1) / 80; len -= iters * 80; #undef Chunk #define Chunk() do { \ __m128i a = Fetch128(s); \ __m128i b = Fetch128(s + 16); \ __m128i c = Fetch128(s + 32); \ __m128i d = Fetch128(s + 48); \ __m128i e = Fetch128(s + 64); \ h = Add(h, a); \ g = Add(g, b); \ g = Shuffle0321(g); \ f = Add(f, c); \ __m128i be = Add(b, Mulc1(e)); \ h = Add(h, f); \ f = Add(f, h); \ h = Add(h, d); \ q = Add(q, e); \ h = Rol17(h); \ h = Mulc1(h); \ k = Xor(k, _mm_shuffle_epi8(g, f)); \ g = Add(Xor(c, g), a); \ f = Add(Xor(be, f), d); \ std::swap(f, q); \ q = _mm_aesimc_si128(q); \ k = Add(k, be); \ k = Add(k, _mm_shuffle_epi8(f, h)); \ f = Add(f, g); \ g = Add(g, f); \ f = Mulc1(f); \ } while (0) q = g; while (iters-- != 0) { Chunk(); s += 80; } if (len != 0) { h = Add(h, _mm_set1_epi32(len)); s = s + len - 80; Chunk(); } } g = Shuffle0321(g); k = Xor(k, g); k = Xor(k, q); h = Xor(h, q); f = Mulc1(f); k = Mulc2(k); g = Mulc1(g); h = Mulc2(h); k = Add(k, _mm_shuffle_epi8(g, f)); h = Add(h, f); f = Add(f, h); g = Add(g, k); k = Add(k, g); k = Xor(k, _mm_shuffle_epi8(f, h)); __m128i buf[4]; buf[0] = f; buf[1] = g; buf[2] = k; buf[3] = h; s = reinterpret_cast(buf); uint32_t x = Fetch(s); uint32_t y = Fetch(s+4); uint32_t z = Fetch(s+8); x = _mm_crc32_u32(x, Fetch(s+12)); y = _mm_crc32_u32(y, Fetch(s+16)); z = _mm_crc32_u32(z * c1, Fetch(s+20)); x = _mm_crc32_u32(x, Fetch(s+24)); y = _mm_crc32_u32(y * c1, Fetch(s+28)); uint32_t o = y; z = _mm_crc32_u32(z, Fetch(s+32)); x = _mm_crc32_u32(x * c1, Fetch(s+36)); y = _mm_crc32_u32(y, Fetch(s+40)); z = _mm_crc32_u32(z * c1, Fetch(s+44)); x = _mm_crc32_u32(x, Fetch(s+48)); y = _mm_crc32_u32(y * c1, Fetch(s+52)); z = _mm_crc32_u32(z, Fetch(s+56)); x = _mm_crc32_u32(x, Fetch(s+60)); return (o - x + y - z) * c1; } #undef Chunk #undef Murk #undef Mulc2 #undef Mulc1 uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) { if (len <= 24) { if (len >= 13) return farmhashmk::Hash32Len13to24(s, len, seed * c1); else if (len >= 5) return farmhashmk::Hash32Len5to12(s, len, seed); else return farmhashmk::Hash32Len0to4(s, len, seed); } uint32_t h = farmhashmk::Hash32Len13to24(s, 24, seed ^ len); return _mm_crc32_u32(Hash32(s + 24, len - 24) + seed, h); } #endif } // namespace farmhashsu namespace farmhashsa { #if !can_use_sse42 uint32_t Hash32(const char *s, size_t len) { FARMHASH_DIE_IF_MISCONFIGURED; return s == NULL ? 0 : len; } uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) { FARMHASH_DIE_IF_MISCONFIGURED; return seed + Hash32(s, len); } #else #undef Fetch #define Fetch Fetch32 #undef Rotate #define Rotate Rotate32 #undef Bswap #define Bswap Bswap32 // Helpers for data-parallel operations (4x 32-bits). STATIC_INLINE __m128i Add(__m128i x, __m128i y) { return _mm_add_epi32(x, y); } STATIC_INLINE __m128i Xor(__m128i x, __m128i y) { return _mm_xor_si128(x, y); } STATIC_INLINE __m128i Or(__m128i x, __m128i y) { return _mm_or_si128(x, y); } STATIC_INLINE __m128i Mul(__m128i x, __m128i y) { return _mm_mullo_epi32(x, y); } STATIC_INLINE __m128i Mul5(__m128i x) { return Add(x, _mm_slli_epi32(x, 2)); } STATIC_INLINE __m128i Rotate(__m128i x, int c) { return Or(_mm_slli_epi32(x, c), _mm_srli_epi32(x, 32 - c)); } STATIC_INLINE __m128i Rot17(__m128i x) { return Rotate(x, 17); } STATIC_INLINE __m128i Rot19(__m128i x) { return Rotate(x, 19); } STATIC_INLINE __m128i Shuffle0321(__m128i x) { return _mm_shuffle_epi32(x, (0 << 6) + (3 << 4) + (2 << 2) + (1 << 0)); } uint32_t Hash32(const char *s, size_t len) { const uint32_t seed = 81; if (len <= 24) { return len <= 12 ? (len <= 4 ? farmhashmk::Hash32Len0to4(s, len) : farmhashmk::Hash32Len5to12(s, len)) : farmhashmk::Hash32Len13to24(s, len); } if (len < 40) { uint32_t a = len, b = seed * c2, c = a + b; a += Fetch(s + len - 4); b += Fetch(s + len - 20); c += Fetch(s + len - 16); uint32_t d = a; a = NAMESPACE_FOR_HASH_FUNCTIONS::Rotate32(a, 21); a = Mur(a, Mur(b, Mur(c, d))); a += Fetch(s + len - 12); b += Fetch(s + len - 8); d += a; a += d; b = Mur(b, d) * c2; a = _mm_crc32_u32(a, b + c); return farmhashmk::Hash32Len13to24(s, (len + 1) / 2, a) + b; } #undef Mulc1 #define Mulc1(x) Mul((x), cc1) #undef Mulc2 #define Mulc2(x) Mul((x), cc2) #undef Murk #define Murk(a, h) \ Add(k, \ Mul5( \ Rot19( \ Xor( \ Mulc2( \ Rot17( \ Mulc1(a))), \ (h))))) const __m128i cc1 = _mm_set1_epi32(c1); const __m128i cc2 = _mm_set1_epi32(c2); __m128i h = _mm_set1_epi32(seed); __m128i g = _mm_set1_epi32(c1 * seed); __m128i f = g; __m128i k = _mm_set1_epi32(0xe6546b64); if (len < 80) { __m128i a = Fetch128(s); __m128i b = Fetch128(s + 16); __m128i c = Fetch128(s + (len - 15) / 2); __m128i d = Fetch128(s + len - 32); __m128i e = Fetch128(s + len - 16); h = Add(h, a); g = Add(g, b); g = Shuffle0321(g); f = Add(f, c); __m128i be = Add(b, Mulc1(e)); h = Add(h, f); f = Add(f, h); h = Add(Murk(d, h), e); k = Xor(k, _mm_shuffle_epi8(g, f)); g = Add(Xor(c, g), a); f = Add(Xor(be, f), d); k = Add(k, be); k = Add(k, _mm_shuffle_epi8(f, h)); f = Add(f, g); g = Add(g, f); g = Add(_mm_set1_epi32(len), Mulc1(g)); } else { // len >= 80 // The following is loosely modelled after farmhashmk::Hash32. size_t iters = (len - 1) / 80; len -= iters * 80; #undef Chunk #define Chunk() do { \ __m128i a = Fetch128(s); \ __m128i b = Fetch128(s + 16); \ __m128i c = Fetch128(s + 32); \ __m128i d = Fetch128(s + 48); \ __m128i e = Fetch128(s + 64); \ h = Add(h, a); \ g = Add(g, b); \ g = Shuffle0321(g); \ f = Add(f, c); \ __m128i be = Add(b, Mulc1(e)); \ h = Add(h, f); \ f = Add(f, h); \ h = Add(Murk(d, h), e); \ k = Xor(k, _mm_shuffle_epi8(g, f)); \ g = Add(Xor(c, g), a); \ f = Add(Xor(be, f), d); \ k = Add(k, be); \ k = Add(k, _mm_shuffle_epi8(f, h)); \ f = Add(f, g); \ g = Add(g, f); \ f = Mulc1(f); \ } while (0) while (iters-- != 0) { Chunk(); s += 80; } if (len != 0) { h = Add(h, _mm_set1_epi32(len)); s = s + len - 80; Chunk(); } } g = Shuffle0321(g); k = Xor(k, g); f = Mulc1(f); k = Mulc2(k); g = Mulc1(g); h = Mulc2(h); k = Add(k, _mm_shuffle_epi8(g, f)); h = Add(h, f); f = Add(f, h); g = Add(g, k); k = Add(k, g); k = Xor(k, _mm_shuffle_epi8(f, h)); __m128i buf[4]; buf[0] = f; buf[1] = g; buf[2] = k; buf[3] = h; s = reinterpret_cast(buf); uint32_t x = Fetch(s); uint32_t y = Fetch(s+4); uint32_t z = Fetch(s+8); x = _mm_crc32_u32(x, Fetch(s+12)); y = _mm_crc32_u32(y, Fetch(s+16)); z = _mm_crc32_u32(z * c1, Fetch(s+20)); x = _mm_crc32_u32(x, Fetch(s+24)); y = _mm_crc32_u32(y * c1, Fetch(s+28)); uint32_t o = y; z = _mm_crc32_u32(z, Fetch(s+32)); x = _mm_crc32_u32(x * c1, Fetch(s+36)); y = _mm_crc32_u32(y, Fetch(s+40)); z = _mm_crc32_u32(z * c1, Fetch(s+44)); x = _mm_crc32_u32(x, Fetch(s+48)); y = _mm_crc32_u32(y * c1, Fetch(s+52)); z = _mm_crc32_u32(z, Fetch(s+56)); x = _mm_crc32_u32(x, Fetch(s+60)); return (o - x + y - z) * c1; } #undef Chunk #undef Murk #undef Mulc2 #undef Mulc1 uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) { if (len <= 24) { if (len >= 13) return farmhashmk::Hash32Len13to24(s, len, seed * c1); else if (len >= 5) return farmhashmk::Hash32Len5to12(s, len, seed); else return farmhashmk::Hash32Len0to4(s, len, seed); } uint32_t h = farmhashmk::Hash32Len13to24(s, 24, seed ^ len); return _mm_crc32_u32(Hash32(s + 24, len - 24) + seed, h); } #endif } // namespace farmhashsa namespace farmhashcc { // This file provides a 32-bit hash equivalent to CityHash32 (v1.1.1) // and a 128-bit hash equivalent to CityHash128 (v1.1.1). It also provides // a seeded 32-bit hash function similar to CityHash32. #undef Fetch #define Fetch Fetch32 #undef Rotate #define Rotate Rotate32 #undef Bswap #define Bswap Bswap32 STATIC_INLINE uint32_t Hash32Len13to24(const char *s, size_t len) { uint32_t a = Fetch(s - 4 + (len >> 1)); uint32_t b = Fetch(s + 4); uint32_t c = Fetch(s + len - 8); uint32_t d = Fetch(s + (len >> 1)); uint32_t e = Fetch(s); uint32_t f = Fetch(s + len - 4); uint32_t h = len; return fmix(Mur(f, Mur(e, Mur(d, Mur(c, Mur(b, Mur(a, h))))))); } STATIC_INLINE uint32_t Hash32Len0to4(const char *s, size_t len) { uint32_t b = 0; uint32_t c = 9; for (size_t i = 0; i < len; i++) { signed char v = s[i]; b = b * c1 + v; c ^= b; } return fmix(Mur(b, Mur(len, c))); } STATIC_INLINE uint32_t Hash32Len5to12(const char *s, size_t len) { uint32_t a = len, b = len * 5, c = 9, d = b; a += Fetch(s); b += Fetch(s + len - 4); c += Fetch(s + ((len >> 1) & 4)); return fmix(Mur(c, Mur(b, Mur(a, d)))); } uint32_t Hash32(const char *s, size_t len) { if (len <= 24) { return len <= 12 ? (len <= 4 ? Hash32Len0to4(s, len) : Hash32Len5to12(s, len)) : Hash32Len13to24(s, len); } // len > 24 uint32_t h = len, g = c1 * len, f = g; uint32_t a0 = Rotate(Fetch(s + len - 4) * c1, 17) * c2; uint32_t a1 = Rotate(Fetch(s + len - 8) * c1, 17) * c2; uint32_t a2 = Rotate(Fetch(s + len - 16) * c1, 17) * c2; uint32_t a3 = Rotate(Fetch(s + len - 12) * c1, 17) * c2; uint32_t a4 = Rotate(Fetch(s + len - 20) * c1, 17) * c2; h ^= a0; h = Rotate(h, 19); h = h * 5 + 0xe6546b64; h ^= a2; h = Rotate(h, 19); h = h * 5 + 0xe6546b64; g ^= a1; g = Rotate(g, 19); g = g * 5 + 0xe6546b64; g ^= a3; g = Rotate(g, 19); g = g * 5 + 0xe6546b64; f += a4; f = Rotate(f, 19); f = f * 5 + 0xe6546b64; size_t iters = (len - 1) / 20; do { uint32_t a0 = Rotate(Fetch(s) * c1, 17) * c2; uint32_t a1 = Fetch(s + 4); uint32_t a2 = Rotate(Fetch(s + 8) * c1, 17) * c2; uint32_t a3 = Rotate(Fetch(s + 12) * c1, 17) * c2; uint32_t a4 = Fetch(s + 16); h ^= a0; h = Rotate(h, 18); h = h * 5 + 0xe6546b64; f += a1; f = Rotate(f, 19); f = f * c1; g += a2; g = Rotate(g, 18); g = g * 5 + 0xe6546b64; h ^= a3 + a1; h = Rotate(h, 19); h = h * 5 + 0xe6546b64; g ^= a4; g = Bswap(g) * 5; h += a4 * 5; h = Bswap(h); f += a0; PERMUTE3(f, h, g); s += 20; } while (--iters != 0); g = Rotate(g, 11) * c1; g = Rotate(g, 17) * c1; f = Rotate(f, 11) * c1; f = Rotate(f, 17) * c1; h = Rotate(h + g, 19); h = h * 5 + 0xe6546b64; h = Rotate(h, 17) * c1; h = Rotate(h + f, 19); h = h * 5 + 0xe6546b64; h = Rotate(h, 17) * c1; return h; } uint32_t Hash32WithSeed(const char *s, size_t len, uint32_t seed) { if (len <= 24) { if (len >= 13) return farmhashmk::Hash32Len13to24(s, len, seed * c1); else if (len >= 5) return farmhashmk::Hash32Len5to12(s, len, seed); else return farmhashmk::Hash32Len0to4(s, len, seed); } uint32_t h = farmhashmk::Hash32Len13to24(s, 24, seed ^ len); return Mur(Hash32(s + 24, len - 24) + seed, h); } #undef Fetch #define Fetch Fetch64 #undef Rotate #define Rotate Rotate64 #undef Bswap #define Bswap Bswap64 STATIC_INLINE uint64_t ShiftMix(uint64_t val) { return val ^ (val >> 47); } STATIC_INLINE uint64_t HashLen16(uint64_t u, uint64_t v) { return Hash128to64(Uint128(u, v)); } STATIC_INLINE uint64_t HashLen16(uint64_t u, uint64_t v, uint64_t mul) { // Murmur-inspired hashing. uint64_t a = (u ^ v) * mul; a ^= (a >> 47); uint64_t b = (v ^ a) * mul; b ^= (b >> 47); b *= mul; return b; } STATIC_INLINE uint64_t HashLen0to16(const char *s, size_t len) { if (len >= 8) { uint64_t mul = k2 + len * 2; uint64_t a = Fetch(s) + k2; uint64_t b = Fetch(s + len - 8); uint64_t c = Rotate(b, 37) * mul + a; uint64_t d = (Rotate(a, 25) + b) * mul; return HashLen16(c, d, mul); } if (len >= 4) { uint64_t mul = k2 + len * 2; uint64_t a = Fetch32(s); return HashLen16(len + (a << 3), Fetch32(s + len - 4), mul); } if (len > 0) { uint8_t a = s[0]; uint8_t b = s[len >> 1]; uint8_t c = s[len - 1]; uint32_t y = static_cast(a) + (static_cast(b) << 8); uint32_t z = len + (static_cast(c) << 2); return ShiftMix(y * k2 ^ z * k0) * k2; } return k2; } // Return a 16-byte hash for 48 bytes. Quick and dirty. // Callers do best to use "random-looking" values for a and b. STATIC_INLINE pair WeakHashLen32WithSeeds( uint64_t w, uint64_t x, uint64_t y, uint64_t z, uint64_t a, uint64_t b) { a += w; b = Rotate(b + a + z, 21); uint64_t c = a; a += x; a += y; b += Rotate(a, 44); return make_pair(a + z, b + c); } // Return a 16-byte hash for s[0] ... s[31], a, and b. Quick and dirty. STATIC_INLINE pair WeakHashLen32WithSeeds( const char* s, uint64_t a, uint64_t b) { return WeakHashLen32WithSeeds(Fetch(s), Fetch(s + 8), Fetch(s + 16), Fetch(s + 24), a, b); } // A subroutine for CityHash128(). Returns a decent 128-bit hash for strings // of any length representable in signed long. Based on City and Murmur. STATIC_INLINE uint128_t CityMurmur(const char *s, size_t len, uint128_t seed) { uint64_t a = Uint128Low64(seed); uint64_t b = Uint128High64(seed); uint64_t c = 0; uint64_t d = 0; signed long l = len - 16; if (l <= 0) { // len <= 16 a = ShiftMix(a * k1) * k1; c = b * k1 + HashLen0to16(s, len); d = ShiftMix(a + (len >= 8 ? Fetch(s) : c)); } else { // len > 16 c = HashLen16(Fetch(s + len - 8) + k1, a); d = HashLen16(b + len, c + Fetch(s + len - 16)); a += d; do { a ^= ShiftMix(Fetch(s) * k1) * k1; a *= k1; b ^= a; c ^= ShiftMix(Fetch(s + 8) * k1) * k1; c *= k1; d ^= c; s += 16; l -= 16; } while (l > 0); } a = HashLen16(a, c); b = HashLen16(d, b); return uint128_t(a ^ b, HashLen16(b, a)); } uint128_t CityHash128WithSeed(const char *s, size_t len, uint128_t seed) { if (len < 128) { return CityMurmur(s, len, seed); } // We expect len >= 128 to be the common case. Keep 56 bytes of state: // v, w, x, y, and z. pair v, w; uint64_t x = Uint128Low64(seed); uint64_t y = Uint128High64(seed); uint64_t z = len * k1; v.first = Rotate(y ^ k1, 49) * k1 + Fetch(s); v.second = Rotate(v.first, 42) * k1 + Fetch(s + 8); w.first = Rotate(y + z, 35) * k1 + x; w.second = Rotate(x + Fetch(s + 88), 53) * k1; // This is the same inner loop as CityHash64(), manually unrolled. do { x = Rotate(x + y + v.first + Fetch(s + 8), 37) * k1; y = Rotate(y + v.second + Fetch(s + 48), 42) * k1; x ^= w.second; y += v.first + Fetch(s + 40); z = Rotate(z + w.first, 33) * k1; v = WeakHashLen32WithSeeds(s, v.second * k1, x + w.first); w = WeakHashLen32WithSeeds(s + 32, z + w.second, y + Fetch(s + 16)); std::swap(z, x); s += 64; x = Rotate(x + y + v.first + Fetch(s + 8), 37) * k1; y = Rotate(y + v.second + Fetch(s + 48), 42) * k1; x ^= w.second; y += v.first + Fetch(s + 40); z = Rotate(z + w.first, 33) * k1; v = WeakHashLen32WithSeeds(s, v.second * k1, x + w.first); w = WeakHashLen32WithSeeds(s + 32, z + w.second, y + Fetch(s + 16)); std::swap(z, x); s += 64; len -= 128; } while (LIKELY(len >= 128)); x += Rotate(v.first + z, 49) * k0; y = y * k0 + Rotate(w.second, 37); z = z * k0 + Rotate(w.first, 27); w.first *= 9; v.first *= k0; // If 0 < len < 128, hash up to 4 chunks of 32 bytes each from the end of s. for (size_t tail_done = 0; tail_done < len; ) { tail_done += 32; y = Rotate(x + y, 42) * k0 + v.second; w.first += Fetch(s + len - tail_done + 16); x = x * k0 + w.first; z += w.second + Fetch(s + len - tail_done); w.second += v.first; v = WeakHashLen32WithSeeds(s + len - tail_done, v.first + z, v.second); v.first *= k0; } // At this point our 56 bytes of state should contain more than // enough information for a strong 128-bit hash. We use two // different 56-byte-to-8-byte hashes to get a 16-byte final result. x = HashLen16(x, v.first); y = HashLen16(y + z, w.first); return uint128_t(HashLen16(x + v.second, w.second) + y, HashLen16(x + w.second, y + v.second)); } STATIC_INLINE uint128_t CityHash128(const char *s, size_t len) { return len >= 16 ? CityHash128WithSeed(s + 16, len - 16, uint128_t(Fetch(s), Fetch(s + 8) + k0)) : CityHash128WithSeed(s, len, uint128_t(k0, k1)); } uint128_t Fingerprint128(const char* s, size_t len) { return CityHash128(s, len); } } // namespace farmhashcc namespace NAMESPACE_FOR_HASH_FUNCTIONS { // BASIC STRING HASHING // Hash function for a byte array. See also Hash(), below. // May change from time to time, may differ on different platforms, may differ // depending on NDEBUG. uint32_t Hash32(const char* s, size_t len) { return DebugTweak( (can_use_sse41 & x86_64) ? farmhashnt::Hash32(s, len) : (can_use_sse42 & can_use_aesni) ? farmhashsu::Hash32(s, len) : can_use_sse42 ? farmhashsa::Hash32(s, len) : farmhashmk::Hash32(s, len)); } // Hash function for a byte array. For convenience, a 32-bit seed is also // hashed into the result. // May change from time to time, may differ on different platforms, may differ // depending on NDEBUG. uint32_t Hash32WithSeed(const char* s, size_t len, uint32_t seed) { return DebugTweak( (can_use_sse41 & x86_64) ? farmhashnt::Hash32WithSeed(s, len, seed) : (can_use_sse42 & can_use_aesni) ? farmhashsu::Hash32WithSeed(s, len, seed) : can_use_sse42 ? farmhashsa::Hash32WithSeed(s, len, seed) : farmhashmk::Hash32WithSeed(s, len, seed)); } // Hash function for a byte array. For convenience, a 64-bit seed is also // hashed into the result. See also Hash(), below. // May change from time to time, may differ on different platforms, may differ // depending on NDEBUG. uint64_t Hash64(const char* s, size_t len) { return DebugTweak( (can_use_sse42 & x86_64) ? farmhashte::Hash64(s, len) : farmhashxo::Hash64(s, len)); } // Hash function for a byte array. // May change from time to time, may differ on different platforms, may differ // depending on NDEBUG. size_t Hash(const char* s, size_t len) { return sizeof(size_t) == 8 ? Hash64(s, len) : Hash32(s, len); } // Hash function for a byte array. For convenience, a 64-bit seed is also // hashed into the result. // May change from time to time, may differ on different platforms, may differ // depending on NDEBUG. uint64_t Hash64WithSeed(const char* s, size_t len, uint64_t seed) { return DebugTweak(farmhashna::Hash64WithSeed(s, len, seed)); } // Hash function for a byte array. For convenience, two seeds are also // hashed into the result. // May change from time to time, may differ on different platforms, may differ // depending on NDEBUG. uint64_t Hash64WithSeeds(const char* s, size_t len, uint64_t seed0, uint64_t seed1) { return DebugTweak(farmhashna::Hash64WithSeeds(s, len, seed0, seed1)); } // Hash function for a byte array. // May change from time to time, may differ on different platforms, may differ // depending on NDEBUG. uint128_t Hash128(const char* s, size_t len) { return DebugTweak(farmhashcc::Fingerprint128(s, len)); } // Hash function for a byte array. For convenience, a 128-bit seed is also // hashed into the result. // May change from time to time, may differ on different platforms, may differ // depending on NDEBUG. uint128_t Hash128WithSeed(const char* s, size_t len, uint128_t seed) { return DebugTweak(farmhashcc::CityHash128WithSeed(s, len, seed)); } // BASIC NON-STRING HASHING // FINGERPRINTING (i.e., good, portable, forever-fixed hash functions) // Fingerprint function for a byte array. Most useful in 32-bit binaries. uint32_t Fingerprint32(const char* s, size_t len) { return farmhashmk::Hash32(s, len); } // Fingerprint function for a byte array. uint64_t Fingerprint64(const char* s, size_t len) { return farmhashna::Hash64(s, len); } // Fingerprint function for a byte array. uint128_t Fingerprint128(const char* s, size_t len) { return farmhashcc::Fingerprint128(s, len); } // Older and still available but perhaps not as fast as the above: // farmhashns::Hash32{,WithSeed}() } // namespace NAMESPACE_FOR_HASH_FUNCTIONS #if FARMHASHSELFTEST #ifndef FARMHASH_SELF_TEST_GUARD #define FARMHASH_SELF_TEST_GUARD #include #include #include using std::cout; using std::cerr; using std::endl; using std::hex; static const uint64_t kSeed0 = 1234567; static const uint64_t kSeed1 = k0; static const int kDataSize = 1 << 20; static const int kTestSize = 300; #define kSeed128 Uint128(kSeed0, kSeed1) static char data[kDataSize]; static int completed_self_tests = 0; static int errors = 0; // Initialize data to pseudorandom values. void Setup() { if (completed_self_tests == 0) { uint64_t a = 9; uint64_t b = 777; for (int i = 0; i < kDataSize; i++) { a += b; b += a; a = (a ^ (a >> 41)) * k0; b = (b ^ (b >> 41)) * k0 + i; uint8_t u = b >> 37; memcpy(data + i, &u, 1); // uint8_t -> char } } } int NoteErrors() { #define NUM_SELF_TESTS 9 if (++completed_self_tests == NUM_SELF_TESTS) std::exit(errors > 0); return errors; } template inline bool IsNonZero(T x) { return x != 0; } template <> inline bool IsNonZero(uint128_t x) { return x != Uint128(0, 0); } #endif // FARMHASH_SELF_TEST_GUARD namespace farmhashccTest { uint32_t CreateSeed(int offset, int salt) { uint32_t h = static_cast(salt & 0xffffffff); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); h += static_cast(offset & 0xffffffff); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); return h; } #undef SEED #undef SEED1 #undef SEED0 #define SEED CreateSeed(offset, -1) #define SEED0 CreateSeed(offset, 0) #define SEED1 CreateSeed(offset, 1) #undef TESTING #define TESTING 1 #if TESTING uint32_t expected[] = { 4223616069u, 3696677242u, 1039179260u, 1690343979u, 1018511555u, 2464489001u, 20368522u, 2663783964u, 175201532u, 1619210592u, 4081014168u, 2576519988u, 3285042206u, 502478099u, 739479538u, 1500332790u, 13754768u, 3789353455u, 3473868058u, 1909255088u, 2212771159u, 1112731063u, 826915357u, 2893489933u, 118369799u, 1848668220u, 1308219822u, 249416982u, 64306364u, 4221800195u, 1020067935u, 3955445564u, 563346294u, 550236731u, 2339016688u, 1826259714u, 3872358639u, 2295981050u, 1870005390u, 4015628802u, 1451961420u, 653440099u, 1292493871u, 164377749u, 1717712483u, 463414587u, 3924343675u, 1050492084u, 3566618804u, 2046983362u, 31917516u, 2957164615u, 230718965u, 999595115u, 3534822176u, 2175709186u, 965707431u, 441796222u, 2481718051u, 1827777486u, 2590087362u, 3879448744u, 3515079898u, 1601433082u, 982764532u, 254808716u, 1293372530u, 4205605817u, 947001462u, 1138890052u, 176305566u, 2447367541u, 2973802542u, 4123621138u, 3083865840u, 1706367795u, 792114347u, 2880110657u, 440613768u, 195054868u, 1359016305u, 3363804638u, 649488537u, 1624045597u, 1441938215u, 3147758996u, 3199173578u, 2597283203u, 2191333609u, 3763129144u, 1117290165u, 1062549743u, 2565615889u, 1046361554u, 1581968261u, 1058773671u, 1123053168u, 3807622275u, 1486749916u, 3900816089u, 2437877004u, 1894455839u, 1912520953u, 1914997013u, 561048608u, 1643267444u, 3671572006u, 194811086u, 1468911468u, 2179206286u, 673206794u, 3486923651u, 3741426466u, 3292160512u, 697001377u, 1900763774u, 3726097344u, 629282039u, 3578723715u, 2868028489u, 3269862919u, 2303349487u, 3643953525u, 2307255916u, 849996280u, 732080434u, 909961480u, 3542445214u, 2628347095u, 4236856917u, 1380660650u, 2631821908u, 2007289004u, 3509705198u, 3788541675u, 789457322u, 3090670546u, 638977894u, 3503881773u, 947102987u, 1525325287u, 1816697045u, 2706647405u, 288763142u, 3505438495u, 481308609u, 2882636782u, 3745162621u, 3503467033u, 428247823u, 176408838u, 333551502u, 1001068721u, 1681483651u, 75380831u, 4191469679u, 3627361839u, 2736617386u, 3120737438u, 1297502456u, 864896482u, 85674920u, 2886047255u, 4119881331u, 2496990525u, 3442502055u, 1806582817u, 3186345024u, 4099591287u, 2560171465u, 3489229104u, 3065015872u, 2755089808u, 3098442882u, 378524719u, 2664097023u, 1771960725u, 2901182183u, 55258521u, 1266621443u, 581644891u, 37790450u, 1800731704u, 3601350920u, 53428754u, 2759476837u, 3391093099u, 1496510311u, 2511119507u, 2636877410u, 631613207u, 1573846064u, 260484875u, 1088212603u, 2369525206u, 322522428u, 3191396600u, 2076543340u, 1552496658u, 2739811558u, 3867875546u, 2051584261u, 2126250818u, 901517871u, 3651631165u, 1323139145u, 1521111765u, 477802997u, 3508559783u, 383954241u, 3804516756u, 4250206331u, 2655954340u, 2484996477u, 1417544845u, 1520282298u, 2745204366u, 2869345147u, 1872738335u, 2592877343u, 1619744564u, 1804962124u, 3458679890u, 423948620u, 273645618u, 4187865426u, 376057175u, 2943431463u, 3581950599u, 1035398331u, 1088213445u, 861988903u, 1323370244u, 777069428u, 506235917u, 369720851u, 2789995854u, 230915180u, 1505086948u, 940361236u, 3727873235u, 1159167499u, 1860302871u, 3456858862u, 3923555152u, 2131072714u, 2910461068u, 3671950363u, 2010742682u, 4088068851u, 3616470388u, 2087714788u, 221675509u, 1230154072u, 3450704646u, 1463226695u, 1998357699u, 266026801u, 619568740u, 3560427266u, 4148162586u, 3150417316u, 1356375822u, 2056097622u, 627905802u, 3881675638u, 2309738053u, 971916703u, 3447805361u, 1673575328u, 673084328u, 3317849401u, 2836362782u, 2377208890u, 3275350588u, 158350552u, 2553241779u, 2497264995u, 3262882649u, 3897937187u, 1598963653u, 3068514414u, 601541505u, 374517071u, 3380795976u, 235752573u, 284670003u, 2990192160u, 904937105u, 2306579150u, 2117362589u, 1635274830u, 3355572906u, 170799903u, 1226685528u, 664567688u, 413219134u, 878324258u, 4026159448u, 3620649295u, 1823625377u, 3175888439u, 1759344347u, 2640637095u, 3549558u, 2192984935u, 978623493u, 804017880u, 3877562323u, 3843116489u, 1641748342u, 1853539444u, 3001178468u, 3443560727u, 2685426077u, 1653064722u, 349231508u, 2726789654u, 3136215581u, 768402830u, 269384321u, 531936536u, 2592883487u, 1343156334u, 3628619802u, 1477143570u, 4269458419u, 3285611028u, 959104925u, 2712290710u, 3480237248u, 835796333u, 2020636251u, 1191914589u, 126521603u, 4288023938u, 3731699932u, 2136758855u, 985780142u, 193807575u, 1850544433u, 653947619u, 3929316796u, 381871169u, 950486363u, 1787262279u, 360480382u, 1800636585u, 1039258631u, 3682073259u, 1262819303u, 1786000319u, 1570627191u, 893065837u, 301304916u, 1478469809u, 623018819u, 2742232545u, 2058913014u, 1706060059u, 2421125401u, 1315829592u, 3208766775u, 1805586156u, 575853086u, 3085025513u, 4010908260u, 2344058256u, 3814407434u, 1458485673u, 2474514786u, 3581895658u, 2710719679u, 190812706u, 2135454262u, 2620080728u, 3400757986u, 1669914857u, 1559978393u, 1629811331u, 3096616493u, 1391424435u, 4158376003u, 1015657076u, 794783832u, 479952178u, 1150290207u, 2497437906u, 231815090u, 755078067u, 3832053281u, 63649475u, 2415822606u, 4105027719u, 1706992318u, 1106598740u, 3941945667u, 1271300761u, 505882259u, 760186809u, 2657183368u, 1925422058u, 1039773764u, 880219458u, 4275949176u, 1556833823u, 925882132u, 4216310340u, 757497522u, 461833914u, 3884002070u, 2790957660u, 2100050089u, 651959176u, 1380301291u, 1289124125u, 452314403u, 226156280u, 3306924715u, 1750807758u, 2290180542u, 1953760569u, 2253069096u, 3960924806u, 1786291620u, 60736185u, 2569018293u, 3870479674u, 2247005661u, 2239850953u, 4261808536u, 3282975782u, 780945879u, 3349849383u, 1579362556u, 2265045884u, 905088740u, 725212379u, 3156479246u, 2501620391u, 3062836263u, 4070422690u, 996797869u, 4082582315u, 976105756u, 303983602u, 1862104804u, 3864508254u, 3383979677u, 2835500286u, 2798364010u, 519359476u, 3447342725u, 194373889u, 3313466630u, 232399983u, 2841787856u, 1672751454u, 3345183154u, 1805381384u, 2226129336u, 2847829057u, 2350774567u, 2838540121u, 2757948482u, 1017002062u, 2329150951u, 2171488196u, 3668619047u, 3874977844u, 3287966998u, 262346753u, 2493054715u, 2298644430u, 2926101182u, 1528457638u, 598656233u, 2615845874u, 989110727u, 820441411u, 253617372u, 2201077208u, 2047569338u, 3114356329u, 3335563734u, 2967673540u, 768438341u, 1417708203u, 3873718246u, 1538441843u, 1279167650u, 3917966776u, 2218481734u, 1015935150u, 1957845042u, 1318150213u, 3146423971u, 4218994877u, 1162470863u, 1519718292u, 2594658906u, 665870414u, 3430347817u, 3933868731u, 1597041394u, 3138684682u, 3398212027u, 1064647658u, 1576321132u, 14792918u, 224938029u, 3706456050u, 847274786u, 2645698692u, 1743374687u, 2343133224u, 3066596790u, 2857270120u, 200596308u, 452055528u, 2319312082u, 3488655402u, 4146865894u, 608206438u, 2699777051u, 3687240713u, 327957508u, 3664730153u, 568134564u, 2993484554u, 4159860363u, 4274533921u, 1079994063u, 2360220210u, 3609597760u, 3639708902u, 2836180437u, 1069910270u, 1892427666u, 1874729790u, 1267712826u, 121886940u, 3572289214u, 2475945610u, 783779452u, 588827737u, 1531395014u, 2085084212u, 2219189792u, 3981444548u, 2218885336u, 1691622694u, 2053232885u, 1386558530u, 2182946189u, 2365247285u, 1871081313u, 2935751853u, 38413723u, 543465863u, 900691890u, 2899905665u, 575120562u, 93133904u, 457154948u, 2983705792u, 4232229200u, 2038565963u, 614693984u, 3405328302u, 4083090010u, 2088004171u, 244031209u, 1861889294u, 2417109253u, 3299562328u, 4158642443u, 4199064449u, 3161611046u, 885015950u, 3677904099u, 2969861785u, 772348805u, 1712263832u, 3219357614u, 484271305u, 3645706114u, 2059620251u, 409557488u, 2278896731u, 224475749u, 3523022952u, 2057140088u, 449131785u, 1149879244u, 4255363996u, 3602720135u, 1690010854u, 2503998822u, 2750828466u, 3340671802u, 1447583863u, 2649684943u, 2764747249u, 3046070595u, 3441726138u, 3840332559u, 3156747501u, 1288666680u, 1472744459u, 3452391933u, 1617542784u, 217869690u, 3718469527u, 348639731u, 590532355u, 43789787u, 22606314u, 1621559290u, 2231743261u, 2234620879u, 544748955u, 3169387920u, 203343594u, 3272552527u, 1078282365u, 809576321u, 854207584u, 3625491053u, 1193737267u, 1628966807u, 2661421060u, 2433442061u, 3886639039u, 2149304418u, 303000565u, 1432830882u, 137378235u, 1135974068u, 318705754u, 2491227157u, 2627534472u, 3520352233u, 2488397682u, 3969194920u, 3843962181u, 2135981459u, 2611933220u, 799460731u, 2300968851u, 3412851628u, 3070914013u, 3555224260u, 4125937572u, 240359903u, 722496673u, 2061023600u, 3843919221u, 2759960043u, 1191155322u, 1504041490u, 3735253656u, 1773124736u, 101110011u, 1627699578u, 2645634551u, 263603947u, 1388368439u, 677146538u, 1644201982u, 2625699644u, 2403862553u, 2426069017u, 3613511705u, 915141802u, 2981654265u, 3474818167u, 2611101773u, 627891434u, 762754924u, 2143021902u, 51067670u, 4017746573u, 2269879853u, 3037857950u, 2388899692u, 582729171u, 1886116725u, 2281219772u, 264704948u, 3509984037u, 4078683368u, 2172959411u, 1807195632u, 3357092302u, 2253764928u, 2320369390u, 3076335959u, 2623583210u, 168378015u, 1435562650u, 1100977467u, 3160490319u, 2550328495u, 2396855930u, 1347823908u, 1617990918u, 3849653099u, 3224111576u, 1681539821u, 4171542880u, 552200045u, 3562947778u, 1676237880u, 3747732307u, 2453332913u, 865530667u, 3566636849u, 3485502777u, 336779723u, 2535942410u, 1685000184u, 820545711u, 1893670486u, 1273910461u, 1193758569u, 970365241u, 381205962u, 3612810852u, 1160577445u, 541488143u, 4005031080u, 2333965236u, 2419855455u, 3484533538u, 3073937876u, 908466956u, 661391539u, 2342122412u, 1467049112u, 1785800827u, 135343033u, 139643209u, 2438375667u, 974654058u, 3216478230u, 3807620420u, 779043363u, 2812846449u, 333254784u, 1025244024u, 2242303095u, 2476683742u, 350018683u, 174652916u, 933097576u, 826905896u, 559603581u, 2777181260u, 164915169u, 4070353203u, 1459055748u, 297303985u, 3103837241u, 3812514233u, 232265137u, 2032819099u, 1523091376u, 3531238208u, 1403510182u, 2886832080u, 2599705941u, 2789695716u, 68437968u, 3823813791u, 1040994569u, 3024194990u, 2461740520u, 3735391266u, 2042207153u, 2461678616u, 3519231840u, 1344224923u, 411442756u, 1179779351u, 7661528u, 778352196u, 3288808867u, 589356197u, 2627504511u, 3374744599u, 3312172905u, 357423007u, 3539567796u, 4044452215u, 1445118403u, 2937983820u, 184089910u, 346201845u, 2427295202u, 1345448010u, 2884434843u, 3085001879u, 2640105409u, 315310640u, 3530289798u, 3362974764u, 963602652u, 75228477u, 3509381180u, 4012777756u, 2380345941u, 1073137836u, 2083960378u, 1220315185u, 3628720934u, 3508867818u, 67148343u, 3558085158u, 1753943368u, 863309561u, 2844713625u, 441921850u, 854732254u, 816793316u, 2555428747u, 3440623414u, 1707304366u, 3189874375u, 1623229221u, 1220335976u, 806745430u, 3909262947u, 1680369031u, 2926179486u, 3410391660u, 3991630434u, 2876458763u, 1179167079u, 536360759u, 1592117159u, 1514343977u, 1032622306u, 2057494855u, 784938958u, 178402996u, 1152907972u, 2326185495u, 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3871785309u, 539583269u, 1400252405u, 3857849984u, 4231186588u, 1278653799u, 1760227022u, 761044088u, 3838185417u, 2439542532u, 585283357u, 2055995220u, 937117124u, 3831944855u, 1823586038u, 3287917855u, 485082427u, 3209172809u, 1984570176u, 2818337297u, 2691869057u, 3790476953u, 839035557u, 3203129010u, 669981176u, 4121157385u, 3519870450u, 3792633352u, 3017650322u, 1603459507u, 4225677666u, 376555451u, 473780127u, 2018786277u, 3299822439u, 1010254499u, 2383887565u, 3155009499u, 3108110655u, 2641738274u, 3684908622u, 1606463047u, 3311068174u, 52708046u, 754181455u, 1018079176u, 3915670272u, 3366999425u, 1012880204u, 1339439715u, 466437962u, 1402662350u, 2504046911u, 736323938u, 2037800124u, 1725908589u, 716341840u, 1750123474u, 3366342464u, 1743666195u, 2975303189u, 3821364027u, 3253707772u, 3635548377u, 3840413796u, 1955642085u, 1018315169u, 1258092848u, 2095540656u, 1076256607u, 117289557u, 1311658655u, 2118301000u, 68721550u, 2886814107u, 2712432819u, 4201862886u, 753807148u, 1940229047u, 731347296u, 1068901393u, 3873155894u, 2852787666u, 1973464853u, 79735652u, 3966380587u, 3245740712u, 2525773438u, 734938109u, 3045656416u, 3335746354u, 4099732691u, 1911896517u, 1697006473u, 1145487066u, 1605663299u, 3053606724u, 2386289465u, 3821211369u, 1006215345u, 1256304829u, 1053001668u, 1289194958u, 118761054u, 1853688730u, 2803418011u, 188650809u, 3763686458u, 1006829556u, 2961984133u, 3390525025u, 2061199893u, 141792681u, 2439893463u, 2652982650u, 1804942682u, 1546510005u, 1246961405u, 2407577046u, 565772575u, 3751844810u, 2943166103u, 3750052451u, 3022527280u, 25162928u, 397381043u, 1818337632u, 3447363730u, 3936437150u, 2569420703u, 2215592390u, 2171555672u, 3665571006u, 4021712412u, 2939158353u, 4057813172u, 1823237318u, 103999245u, 3251978010u, 3591914940u, 3582495283u, 2519035265u, 3905726135u, 3180393349u, 2743117123u, 55247368u, 3325286701u, 705195946u, 1857526853u, 1480518550u, 3809990433u, 1398189338u, 3126362926u, 3959531492u, 1503658285u, 1977847740u, 3043964489u, 2613086143u, 1518119282u, 4238434900u, 3905746486u, 3064949667u, 1028122931u, 3309119457u, 4071194920u, 3096098907u, 4137180520u, 494467959u, 1231408687u, 1691606157u, 1793452569u, 2722196118u, 3478603952u, 1059665738u, 2282032278u, 3990268388u, 1719514651u, 4248311578u, 3799146721u, 898026304u, 3367808954u, 4162472815u, 170495870u, 1308116609u, 3428285344u, 1714716475u, 395576794u, 4153638621u, 2999745812u, 3483315953u, 304980828u, 595337120u, 3486516729u, 2331563143u, 2583609459u, 1885928417u, 3834283777u, 979337825u, 932057378u, 3124081189u, 1930356777u, 3865887996u, 4178282217u, 4214219408u, 3669465884u, 1472413856u, 3356866587u, 1012769806u, 3043639963u, 996996396u, 207308216u, 982967331u, 2991319933u, 318066902u, 721489670u, 1249967713u, 749240921u, 591392325u, 2379365192u, 2250868849u, 2163259329u, 143191325u, 3778285606u, 982149096u, 3536906200u, 2244353244u, 1443862317u, 3161549210u, 2183127464u, 2015409516u, 547003700u, 2032484282u, 523677821u, 4275663308u, 3827205526u, 3903778273u, 2444530525u, 2543645801u, 1173958423u, 784740616u, 2878693675u, 3127696736u, 3832037316u, 3161002398u, 4084166400u, 4213346853u, 223390424u, 4273380883u, 2130315482u, 3429606032u, 3367732613u, 1912357694u, 422632590u, 1266957023u, 3437535648u, 736404240u, 2281709372u, 415859912u, 212948797u, 351612650u, 3920561440u, 112963586u, 2230727543u, 2851076612u, 1990662634u, 2264296857u, 3131463650u, 2704034623u, 3541637839u, 2954232792u, 533986918u, 4158757533u, 65174248u, 4232639593u, 865906667u, 1948225652u, 779656112u, 3873989249u, 2372984749u, 2346988193u, 1104345713u, 1165654138u, 4045762610u, 3588205178u, 461363991u, 1111215752u, 1389675192u, 2404325151u, 2152228101u, 3808973622u, 1901235912u, 3458690696u, 314513238u, 2539459143u, 2847998873u, 952026138u, 2325705328u, 407844712u, 3727960715u, 2996448351u, 2374336760u, 3138756390u, 2600015243u, 539980418u, 1876285352u, 1670330799u, 1709360377u, 2868531654u, 494777964u, 2773053597u, 599486162u, 3962209577u, 1871328846u, 2171933018u, 110279472u, 384074780u, 4147021936u, 2333589647u, 4251778066u, 40493468u, 3099342316u, 4108779767u, 2812424588u, 954542332u, 2040682331u, 2251152306u, 45915516u, 259525626u, 1045384743u, 4134656562u, 749389261u, 874399445u, 616549904u, 2200447504u, 436024539u, 78972290u, 3210485762u, 1907985531u, 3013721395u, 4214533685u, 4198804243u, 534879265u, 1517190881u, 3756787754u, 1152563554u, 1718750948u, 777737463u, 1402478860u, 1824562784u, 1879401449u, 3515818786u, 513165201u, 1423491227u, 2103067918u, 2291777410u, 1097943000u, }; // Return false only if offset is -1 and a spot check of 3 hashes all yield 0. bool Test(int offset, int len = 0) { #undef Check #undef IsAlive #define Check(x) do { \ const uint32_t actual = (x), e = expected[index++]; \ bool ok = actual == e; \ if (!ok) { \ cerr << "expected " << hex << e << " but got " << actual << endl; \ ++errors; \ } \ assert(ok); \ } while (0) #define IsAlive(x) do { alive += IsNonZero(x); } while (0) // After the following line is where the uses of "Check" and such will go. static int index = 0; if (offset == -1) { int alive = 0; IsAlive(farmhashcc::Hash32WithSeed(data, len++, SEED)); IsAlive(farmhashcc::Hash32(data, len++)); { uint128_t u = farmhashcc::Fingerprint128(data, len++); uint64_t h = Uint128Low64(u); IsAlive(h >> 32); IsAlive((h << 32) >> 32); h = Uint128High64(u); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } len -= 3; return alive > 0; } Check(farmhashcc::Hash32WithSeed(data + offset, len, SEED)); Check(farmhashcc::Hash32(data + offset, len)); { uint128_t u = farmhashcc::Fingerprint128(data + offset, len); uint64_t h = Uint128Low64(u); Check(h >> 32); Check((h << 32) >> 32); h = Uint128High64(u); Check(h >> 32); Check((h << 32) >> 32); } { uint128_t u = farmhashcc::CityHash128WithSeed(data + offset, len, Uint128(SEED0, SEED1)); uint64_t h = Uint128Low64(u); Check(h >> 32); Check((h << 32) >> 32); h = Uint128High64(u); Check(h >> 32); Check((h << 32) >> 32); } return true; #undef Check #undef IsAlive } int RunTest() { Setup(); int i = 0; cout << "Running farmhashccTest"; if (!Test(-1)) { cout << "... Unavailable\n"; return NoteErrors(); } // Good. The function is attempting to hash, so run the full test. int errors_prior_to_test = errors; for ( ; i < kTestSize - 1; i++) { Test(i * i, i); } for ( ; i < kDataSize; i += i / 7) { Test(0, i); } Test(0, kDataSize); cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n"); return NoteErrors(); } #else // After the following line is where the code to print hash codes will go. void Dump(int offset, int len) { cout << farmhashcc::Hash32WithSeed(data + offset, len, SEED) << "u," << endl; cout << farmhashcc::Hash32(data + offset, len) << "u," << endl; { uint128_t u = farmhashcc::Fingerprint128(data + offset, len); uint64_t h = Uint128Low64(u); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u, "; h = Uint128High64(u); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } { uint128_t u = farmhashcc::CityHash128WithSeed(data + offset, len, Uint128(SEED0, SEED1)); uint64_t h = Uint128Low64(u); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u, "; h = Uint128High64(u); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } } #endif #undef SEED #undef SEED1 #undef SEED0 } // namespace farmhashccTest #if TESTING static int farmhashccTestResult = farmhashccTest::RunTest(); #else int main(int argc, char** argv) { Setup(); cout << "uint32_t expected[] = {\n"; int i = 0; for ( ; i < kTestSize - 1; i++) { farmhashccTest::Dump(i * i, i); } for ( ; i < kDataSize; i += i / 7) { farmhashccTest::Dump(0, i); } farmhashccTest::Dump(0, kDataSize); cout << "};\n"; } #endif #ifndef FARMHASH_SELF_TEST_GUARD #define FARMHASH_SELF_TEST_GUARD #include #include #include using std::cout; using std::cerr; using std::endl; using std::hex; static const uint64_t kSeed0 = 1234567; static const uint64_t kSeed1 = k0; static const int kDataSize = 1 << 20; static const int kTestSize = 300; #define kSeed128 Uint128(kSeed0, kSeed1) static char data[kDataSize]; static int completed_self_tests = 0; static int errors = 0; // Initialize data to pseudorandom values. void Setup() { if (completed_self_tests == 0) { uint64_t a = 9; uint64_t b = 777; for (int i = 0; i < kDataSize; i++) { a += b; b += a; a = (a ^ (a >> 41)) * k0; b = (b ^ (b >> 41)) * k0 + i; uint8_t u = b >> 37; memcpy(data + i, &u, 1); // uint8_t -> char } } } int NoteErrors() { #define NUM_SELF_TESTS 9 if (++completed_self_tests == NUM_SELF_TESTS) std::exit(errors > 0); return errors; } template inline bool IsNonZero(T x) { return x != 0; } template <> inline bool IsNonZero(uint128_t x) { return x != Uint128(0, 0); } #endif // FARMHASH_SELF_TEST_GUARD namespace farmhashmkTest { uint32_t CreateSeed(int offset, int salt) { uint32_t h = static_cast(salt & 0xffffffff); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); h += static_cast(offset & 0xffffffff); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); return h; } #undef SEED #undef SEED1 #undef SEED0 #define SEED CreateSeed(offset, -1) #define SEED0 CreateSeed(offset, 0) #define SEED1 CreateSeed(offset, 1) #undef TESTING #define TESTING 1 #if TESTING uint32_t expected[] = { 4223616069u, 3696677242u, 4081014168u, 2576519988u, 2212771159u, 1112731063u, 1020067935u, 3955445564u, 1451961420u, 653440099u, 31917516u, 2957164615u, 2590087362u, 3879448744u, 176305566u, 2447367541u, 1359016305u, 3363804638u, 1117290165u, 1062549743u, 2437877004u, 1894455839u, 673206794u, 3486923651u, 3269862919u, 2303349487u, 1380660650u, 595525107u, 1525325287u, 2025609358u, 176408838u, 1592885012u, 864896482u, 2101378090u, 3489229104u, 2118965695u, 581644891u, 2718789079u, 631613207u, 4228658372u, 3867875546u, 3531368319u, 3804516756u, 3317755099u, 1619744564u, 2884717286u, 1088213445u, 2667691076u, 3727873235u, 2330406762u, 3616470388u, 967660719u, 4148162586u, 315219121u, 673084328u, 3047602355u, 1598963653u, 1267826661u, 2117362589u, 2861192253u, 1823625377u, 1380350078u, 1641748342u, 1176094482u, 269384321u, 2178982315u, 3480237248u, 2660755208u, 1850544433u, 3429699438u, 1262819303u, 640556464u, 2421125401u, 2188368608u, 2612932825u, 1474432581u, 173790449u, 2124882189u, 831272654u, 622960146u, 4238751051u, 3250317967u, 2120810248u, 1948231495u, 1389029321u, 2200398357u, 2134232963u, 2948072329u, 617717625u, 681164587u, 114859387u, 430545646u, 57239089u, 3163338012u, 3482496399u, 557662576u, 1102441413u, 2670159360u, 991116729u, 846014240u, 4233741566u, 1802317242u, 3129528802u, 1459456375u, 1305643039u, 3258671612u, 1578285833u, 868590079u, 1631034517u, 1695432937u, 561078856u, 1004115553u, 3086090507u, 3818348650u, 731596645u, 780926790u, 2544205955u, 158479164u, 3983514188u, 2004735250u, 3436218400u, 673684751u, 1463431419u, 2880490219u, 3223748024u, 2218318859u, 1474466194u, 2636437533u, 2206794961u, 140995728u, 1186394086u, 1805716888u, 1640037724u, 3942729099u, 1944727013u, 918951560u, 498666871u, 3486974657u, 2967205462u, 1167253804u, 1884281041u, 2866015002u, 4158319270u, 2627220079u, 3733319624u, 3317092271u, 438323662u, 3195868065u, 3426606709u, 360708338u, 1905491012u, 650004803u, 1351266252u, 3133279000u, 3722811115u, 2722412434u, 918432408u, 3678271248u, 269599647u, 621514057u, 3117077855u, 1545425390u, 2597567410u, 1221437820u, 3493254589u, 102787342u, 918861168u, 348795089u, 3439883229u, 2353641807u, 2209585469u, 4035884492u, 2686995435u, 1649888022u, 3852893848u, 3042700028u, 314103172u, 726977769u, 2489830276u, 2872753660u, 1316214989u, 1488801501u, 1811420390u, 639581627u, 2362837215u, 3634581834u, 3648576802u, 1257314182u, 762118371u, 4268447045u, 730167096u, 755561509u, 882614845u, 3696972894u, 228263661u, 1478636142u, 2767751651u, 1532617116u, 3838657661u, 1944359935u, 1401102137u, 3772933173u, 1050098254u, 1658079354u, 1846025728u, 2204244794u, 2017217424u, 1275162853u, 1429816745u, 2175565479u, 1716109139u, 1187506761u, 2434641075u, 2725597783u, 1795687662u, 1393312782u, 3511565397u, 627885430u, 4145733164u, 2519005353u, 231414775u, 1242015635u, 2760723497u, 2185540568u, 727314436u, 2358790354u, 1186393454u, 4234795645u, 350567813u, 866773875u, 3145590392u, 1158374055u, 3903123687u, 1862119793u, 2204587556u, 4266276976u, 4151548555u, 915250402u, 2874695320u, 2360311410u, 1099212769u, 1271542714u, 3473148363u, 1637325418u, 1807795989u, 2493819794u, 3800917924u, 4001205856u, 2582153621u, 3365872040u, 2890146216u, 2626363824u, 3133351295u, 4046827296u, 3053118771u, 4113026751u, 884356716u, 3828347401u, 10608262u, 830987972u, 1841080500u, 3202717763u, 3561778749u, 1906000052u, 3058284660u, 1432904514u, 2567431677u, 2550162530u, 665557986u, 936887821u, 2101205308u, 4253535847u, 1662043545u, 1253611611u, 2091370094u, 2635077370u, 2602176041u, 3624115809u, 748442714u, 2709749154u, 1023493343u, 860291012u, 3924715584u, 1536436740u, 2551145800u, 2391782865u, 1467705048u, 2583909796u, 3616666170u, 1162857372u, 4228631071u, 1510132376u, 2739165009u, 2656606142u, 3454996358u, 3155038853u, 1022087316u, 100044110u, 494208296u, 2746186477u, 4216782431u, 225448834u, 3728320521u, 335282866u, 3148194874u, 953503703u, 1293353960u, 202372387u, 1326119870u, 4045123735u, 3819994846u, 1629004186u, 1081099186u, 3591584153u, 1670825804u, 3404257979u, 3262192301u, 2572846095u, 3714992543u, 4264142572u, 529616678u, 2882154574u, 3006354178u, 3865969421u, 2007174907u, 308283107u, 2629833703u, 3159124075u, 1146492131u, 494104332u, 493149727u, 1342910585u, 521642387u, 2201695937u, 2517980959u, 2426821287u, 777374655u, 2228189792u, 4027055486u, 228976000u, 3842083468u, 1723920223u, 1192126094u, 787744493u, 2740368380u, 2284153001u, 2773829458u, 442000614u, 387830783u, 2169780670u, 2253144627u, 3532502484u, 1969684059u, 1165351416u, 3055056536u, 3582324253u, 231419363u, 770979865u, 3213983597u, 3690452836u, 935794639u, 3230602762u, 2841762457u, 407598927u, 1164479891u, 3721799696u, 354738136u, 1801566618u, 3206038542u, 2621379981u, 1943487262u, 3534745636u, 1074424589u, 1304517521u, 4133400969u, 2339317978u, 2135116860u, 4180643791u, 2415309340u, 1855926417u, 3418648630u, 1968113037u, 597304222u, 3668824865u, 3810008716u, 3014702569u, 3151212026u, 156057449u, 373134533u, 2068234004u, 191580563u, 3832754488u, 2924104199u, 2026044494u, 4065780435u, 122565840u, 4194985167u, 2744823717u, 2494098735u, 3753793370u, 1885739217u, 2488161225u, 3643797615u, 2653367310u, 2494061477u, 189968132u, 899646597u, 392100396u, 4012318310u, 3855777086u, 3566860954u, 2698574996u, 2414249905u, 1330623339u, 1263222732u, 1277741760u, 2194959402u, 1629656136u, 120494320u, 1072368005u, 1084245077u, 4011372748u, 1366613353u, 3108643228u, 3332219532u, 2114746095u, 3964007334u, 371687128u, 1084813876u, 126459896u, 4292782331u, 321283184u, 398168499u, 3604983506u, 560701543u, 2073961354u, 4240841868u, 4151211362u, 1338986875u, 4093476832u, 2269279497u, 3500846299u, 2510225147u, 598000444u, 1330391422u, 1432533385u, 4171226231u, 426821154u, 2932270996u, 3378981077u, 2217871549u, 1619647984u, 4051608043u, 3180237819u, 12919578u, 1375401767u, 371320427u, 2986640571u, 2336669859u, 3796464715u, 1892383284u, 306814912u, 2125823211u, 1863678891u, 3249703818u, 3840225752u, 281579900u, 264680257u, 4266359110u, 4182229890u, 2239659703u, 3627947372u, 2373929191u, 224082765u, 4053639058u, 1862360303u, 3187739624u, 3392706679u, 948039509u, 817505760u, 1215842393u, 3462222651u, 536021853u, 182346832u, 2731944883u, 2346674384u, 2640961678u, 3446695687u, 2271722179u, 1301069656u, 2803881468u, 2832614405u, 1691544398u, 698756814u, 3980620906u, 3565421410u, 754769376u, 4115923404u, 3909962218u, 2747614077u, 2888289845u, 1016920862u, 2790946178u, 3067070960u, 3173251481u, 1572132982u, 255048203u, 2996538818u, 3405398987u, 136106013u, 3581605228u, 4277437977u, 2147300534u, 3728426265u, 3483629996u, 1478452694u, 20756076u, 2774992067u, 432987927u, 1516771026u, 3511588664u, 2130994978u, 509385406u, 873090347u, 2163904107u, 4192239086u, 2532489989u, 1090772651u, 3910797408u, 3710882132u, 155010959u, 1369823531u, 1599664937u, 4035593587u, 1212746925u, 795822552u, 116689518u, 3674240941u, 1135576664u, 756750261u, 1027431362u, 390555140u, 2228460216u, 1506940482u, 3733857700u, 3048762971u, 2511703196u, 548609887u, 1607354252u, 659053982u, 259884450u, 1793130460u, 4083364495u, 3148555881u, 1764350138u, 2436485683u, 4031563025u, 3261860724u, 2475833430u, 2101726086u, 3191176464u, 2646658847u, 2127042126u, 771316100u, 2115922959u, 3208515045u, 2355437783u, 3621147793u, 1580163615u, 3211555675u, 3299188490u, 191613920u, 466733956u, 2939029038u, 1509152039u, 130591314u, 1892874677u, 1646908044u, 3452406523u, 3998376606u, 1199243832u, 2187108812u, 3189230066u, 4161151481u, 3371454980u, 3681788646u, 180842187u, 3685022399u, 3058749895u, 3250165163u, 2895367943u, 2627101723u, 771755098u, 1332921024u, 3638871848u, 514215135u, 3591227378u, 2300310870u, 3689533503u, 851607114u, 114330368u, 2709027386u, 1743034877u, 1013693860u, 288169008u, 3545190686u, 1052165084u, 3995862307u, 96902755u, 1097819851u, 2645431442u, 2184148618u, 2151206566u, 350979797u, 3467920900u, 421116779u, 1246252u, 4057835428u, 329324407u, 4104482417u, 844624570u, 3306265806u, 3787625025u, 4263241191u, 3251413927u, 2921204431u, 2931915325u, 992134330u, 3986338354u, 1327895216u, 1458363596u, 1480608532u, 728594368u, 3804366693u, 794404223u, 1643240863u, 793417255u, 4167916443u, 2683488959u, 3124925324u, 4184843652u, 3750971752u, 308509829u, 1054550805u, 2797511972u, 4043123412u, 1587158240u, 4050518606u, 3030062190u, 2589912753u, 603440067u, 937013191u, 1071662315u, 2100661456u, 2602005741u, 435516078u, 2260470147u, 1256268350u, 3612035u, 3368856141u, 151516099u, 3081868591u, 3363755681u, 2049963149u, 2885320434u, 84682005u, 2411758308u, 2695174275u, 3099904644u, 1787308684u, 1132379308u, 564634346u, 510236510u, 2804443681u, 3931864252u, 2064427949u, 1893979229u, 2916544974u, 1885887717u, 2978018250u, 494192125u, 2642662373u, 901112508u, 636035003u, 1658643797u, 172746975u, 517504890u, 3440019372u, 4144498044u, 1854755456u, 3672653905u, 4176892856u, 382159097u, 282871690u, 3629300472u, 2500754041u, 1677659759u, 1067175061u, 161654075u, 1672575536u, 346120493u, 2730229631u, 203466442u, 1244549529u, 199761971u, 2744895408u, 3195315331u, 2124618519u, 3261045496u, 985339699u, 3385585455u, 1545740710u, 3636652160u, 2167020081u, 1207897204u, 28752417u, 2895834146u, 3640845375u, 3750293073u, 548997850u, 4207814196u, 4183030708u, 2462810989u, 3929965401u, }; // Return false only if offset is -1 and a spot check of 3 hashes all yield 0. bool Test(int offset, int len = 0) { #undef Check #undef IsAlive #define Check(x) do { \ const uint32_t actual = (x), e = expected[index++]; \ bool ok = actual == e; \ if (!ok) { \ cerr << "expected " << hex << e << " but got " << actual << endl; \ ++errors; \ } \ assert(ok); \ } while (0) #define IsAlive(x) do { alive += IsNonZero(x); } while (0) // After the following line is where the uses of "Check" and such will go. static int index = 0; if (offset == -1) { int alive = 0; IsAlive(farmhashmk::Hash32WithSeed(data, len++, SEED)); IsAlive(farmhashmk::Hash32(data, len++)); IsAlive(farmhashmk::Hash32(data, len++)); len -= 3; return alive > 0; } Check(farmhashmk::Hash32WithSeed(data + offset, len, SEED)); Check(farmhashmk::Hash32(data + offset, len)); return true; #undef Check #undef IsAlive } int RunTest() { Setup(); int i = 0; cout << "Running farmhashmkTest"; if (!Test(-1)) { cout << "... Unavailable\n"; return NoteErrors(); } // Good. The function is attempting to hash, so run the full test. int errors_prior_to_test = errors; for ( ; i < kTestSize - 1; i++) { Test(i * i, i); } for ( ; i < kDataSize; i += i / 7) { Test(0, i); } Test(0, kDataSize); cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n"); return NoteErrors(); } #else // After the following line is where the code to print hash codes will go. void Dump(int offset, int len) { cout << farmhashmk::Hash32WithSeed(data + offset, len, SEED) << "u," << endl; cout << farmhashmk::Hash32(data + offset, len) << "u," << endl; } #endif #undef SEED #undef SEED1 #undef SEED0 } // namespace farmhashmkTest #if TESTING static int farmhashmkTestResult = farmhashmkTest::RunTest(); #else int main(int argc, char** argv) { Setup(); cout << "uint32_t expected[] = {\n"; int i = 0; for ( ; i < kTestSize - 1; i++) { farmhashmkTest::Dump(i * i, i); } for ( ; i < kDataSize; i += i / 7) { farmhashmkTest::Dump(0, i); } farmhashmkTest::Dump(0, kDataSize); cout << "};\n"; } #endif #ifndef FARMHASH_SELF_TEST_GUARD #define FARMHASH_SELF_TEST_GUARD #include #include #include using std::cout; using std::cerr; using std::endl; using std::hex; static const uint64_t kSeed0 = 1234567; static const uint64_t kSeed1 = k0; static const int kDataSize = 1 << 20; static const int kTestSize = 300; #define kSeed128 Uint128(kSeed0, kSeed1) static char data[kDataSize]; static int completed_self_tests = 0; static int errors = 0; // Initialize data to pseudorandom values. void Setup() { if (completed_self_tests == 0) { uint64_t a = 9; uint64_t b = 777; for (int i = 0; i < kDataSize; i++) { a += b; b += a; a = (a ^ (a >> 41)) * k0; b = (b ^ (b >> 41)) * k0 + i; uint8_t u = b >> 37; memcpy(data + i, &u, 1); // uint8_t -> char } } } int NoteErrors() { #define NUM_SELF_TESTS 9 if (++completed_self_tests == NUM_SELF_TESTS) std::exit(errors > 0); return errors; } template inline bool IsNonZero(T x) { return x != 0; } template <> inline bool IsNonZero(uint128_t x) { return x != Uint128(0, 0); } #endif // FARMHASH_SELF_TEST_GUARD namespace farmhashnaTest { uint32_t CreateSeed(int offset, int salt) { uint32_t h = static_cast(salt & 0xffffffff); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); h += static_cast(offset & 0xffffffff); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); return h; } #undef SEED #undef SEED1 #undef SEED0 #define SEED CreateSeed(offset, -1) #define SEED0 CreateSeed(offset, 0) #define SEED1 CreateSeed(offset, 1) #undef TESTING #define TESTING 1 #if TESTING uint32_t expected[] = { 1140953930u, 861465670u, 3277735313u, 2681724312u, 2598464059u, 797982799u, 890626835u, 800175912u, 2603993599u, 921001710u, 1410420968u, 2134990486u, 3283896453u, 1867689945u, 2914424215u, 2244477846u, 255297188u, 2992121793u, 1110588164u, 4186314283u, 161451183u, 3943596029u, 4019337850u, 452431531u, 283198166u, 2741341286u, 3379021470u, 2557197665u, 299850021u, 2532580744u, 452473466u, 1706958772u, 1298374911u, 3099673830u, 2199864459u, 3696623795u, 236935126u, 2976578695u, 4055299123u, 3281581178u, 1053458494u, 1882212500u, 2305012065u, 2169731866u, 3456121707u, 275903667u, 458884671u, 3033004529u, 3058973506u, 2379411653u, 1898235244u, 1402319660u, 2700149065u, 2699376854u, 147814787u, 720739346u, 2433714046u, 4222949502u, 4220361840u, 1712034059u, 3425469811u, 3690733394u, 4148372108u, 1330324210u, 594028478u, 2921867846u, 1635026870u, 192883107u, 780716741u, 1728752234u, 3280331829u, 326029180u, 3969463346u, 1436364519u, 393215742u, 3349570000u, 3824583307u, 1612122221u, 2859809759u, 3808705738u, 1379537552u, 1646032583u, 2233466664u, 1432476832u, 4023053163u, 2650381482u, 2052294713u, 3552092450u, 1628777059u, 1499109081u, 3476440786u, 3829307897u, 2960536756u, 1554038301u, 1145519619u, 3190844552u, 2902102606u, 3600725550u, 237495366u, 540224401u, 65721842u, 489963606u, 1448662590u, 397635823u, 1596489240u, 1562872448u, 1790705123u, 2128624475u, 180854224u, 2604346966u, 1435705557u, 1262831810u, 155445229u, 1672724608u, 1669465176u, 1341975128u, 663607706u, 2077310004u, 3610042449u, 1911523866u, 1043692997u, 1454396064u, 2563776023u, 294527927u, 1099072299u, 1389770549u, 703505868u, 678706990u, 2952353448u, 2026137563u, 3603803785u, 629449419u, 1933894405u, 3043213226u, 226132789u, 2489287368u, 1552847036u, 645684964u, 3828089804u, 3632594520u, 187883449u, 230403464u, 3151491850u, 3272648435u, 3729087873u, 1303930448u, 2002861219u, 165370827u, 916494250u, 1230085527u, 3103338579u, 3064290191u, 3807265751u, 3628174014u, 231181488u, 851743255u, 2295806711u, 1781190011u, 2988893883u, 1554380634u, 1142264800u, 3667013118u, 1968445277u, 315203929u, 2638023604u, 2290487377u, 732137533u, 1909203251u, 440398219u, 1891630171u, 1380301172u, 1498556724u, 4072067757u, 4165088768u, 4204318635u, 441430649u, 3931792696u, 197618179u, 956300927u, 914413116u, 3010839769u, 2837339569u, 2148126371u, 1913303225u, 3074915312u, 3117299654u, 4139181436u, 2993479124u, 3178848746u, 1357272220u, 1438494951u, 507436733u, 667183474u, 2084369203u, 3854939912u, 1413396341u, 126024219u, 146044391u, 1016656857u, 3022024459u, 3254014218u, 429095991u, 165589978u, 1578546616u, 985653208u, 1718653828u, 623071693u, 366414107u, 249776086u, 1207522198u, 3047342438u, 2991127487u, 3120876698u, 1684583131u, 46987739u, 1157614300u, 863214540u, 1087193030u, 199124911u, 520792961u, 3614377032u, 586863115u, 3331828431u, 1013201099u, 1716848157u, 4033596884u, 1164298657u, 4140791139u, 1146169032u, 1434258493u, 3824360466u, 3242407770u, 3725511003u, 232064808u, 872586426u, 762243036u, 2736953692u, 816692935u, 512845449u, 3748861010u, 2266795890u, 3781899767u, 4290630595u, 517646945u, 22638523u, 648000590u, 959214578u, 558910384u, 1283799121u, 3047062993u, 1024246061u, 4027776454u, 3544509313u, 622325861u, 834785312u, 382936554u, 411505255u, 1973395102u, 1825135056u, 2725923798u, 580988377u, 2826990641u, 3474970689u, 1029055034u, 812546227u, 2506885666u, 2584372201u, 1758123094u, 589567754u, 325737734u, 345313518u, 2022370576u, 3886113119u, 3338548567u, 257578986u, 3698087965u, 1776047957u, 1771384107u, 3604937815u, 3198590202u, 2305332220u, 191910725u, 4232136669u, 427759438u, 4244322689u, 542201663u, 3315355162u, 2135941665u, 556609672u, 45845311u, 1175961330u, 3948351189u, 23075771u, 3252374102u, 1634635545u, 4151937410u, 713127376u, 1467786451u, 663013031u, 3444053918u, 2638154051u, 810082938u, 3077742128u, 1062268187u, 2115441882u, 4081398201u, 3735739145u, 2794294783u, 2335576331u, 2560479831u, 1379288194u, 4225182569u, 2442302747u, 3948961926u, 3958366652u, 3067277639u, 3667516477u, 1709989541u, 1516711748u, 2339636583u, 4188504038u, 59581167u, 2725013602u, 3639843023u, 2658147000u, 2643979752u, 3758739543u, 4189944477u, 2470483982u, 877580602u, 2995362413u, 118817200u, 3252925478u, 2062343506u, 3981838403u, 3762572073u, 1231633714u, 4168280671u, 2931588131u, 3284356565u, 1129162571u, 732225574u, 4173605289u, 1407328702u, 1677744031u, 3532596884u, 3232041815u, 1652884780u, 2256541290u, 3459463480u, 3740979556u, 259034107u, 2227121257u, 1426140634u, 3606709555u, 3424793077u, 315836068u, 3200749877u, 1386256573u, 24035717u, 2982018998u, 1811050648u, 234531934u, 1115203611u, 1598686658u, 3146815575u, 1603559457u, 323296368u, 2632963283u, 1778459926u, 739944537u, 579625482u, 3486330348u, 492621815u, 1231665285u, 2457048126u, 3903349120u, 389846205u, 3355404249u, 3275550588u, 1052645068u, 862072556u, 2834153464u, 1481069623u, 2657392572u, 4279236653u, 1688445808u, 701920051u, 3740748788u, 3388062747u, 1873358321u, 2152785640u, 883382081u, 1005815394u, 1020177209u, 734239551u, 2371453141u, 100326520u, 3488500412u, 1279682138u, 2610427744u, 49703572u, 3026361211u, 605900428u, 302392721u, 2509302188u, 1416453607u, 2815915291u, 1862819968u, 519710058u, 2450888314u, 4017598378u, 937074653u, 3035635454u, 1590230729u, 3268013438u, 2710029305u, 12886044u, 3711259084u, 2627383582u, 3895772404u, 648534979u, 260307902u, 855990313u, 3669691805u, 263366740u, 2938543471u, 414331688u, 3080542944u, 3405007814u, 3565059103u, 1190977418u, 390836981u, 1606450012u, 2649808239u, 2514169310u, 2747519432u, 4129538640u, 1721522849u, 492099164u, 792990594u, 3625507637u, 2271095827u, 2993032712u, 2302363854u, 4013112951u, 1111617969u, 2183845740u, 795918276u, 1116991810u, 3110898804u, 3963062126u, 2737064702u, 462795667u, 937372240u, 1343017609u, 1091041189u, 2790555455u, 277024217u, 25485284u, 1166522068u, 1623631848u, 241727183u, 2836158787u, 3112996740u, 573836428u, 2721658101u, 1937681565u, 4175169209u, 3190765433u, 1970000788u, 1668258120u, 114616703u, 954762543u, 199237753u, 4094644498u, 2522281978u, 732086117u, 1756889687u, 2936126607u, 2437031370u, 4103143808u, 3883389541u, 3171090854u, 2483004780u, 1927385370u, 2360538162u, 2740855009u, 4241185118u, 1492209542u, 1672737098u, 2148675559u, 1789864670u, 2434313103u, 2319172611u, 2760941207u, 2636210123u, 1338083267u, 1128080590u, 822806371u, 1199583556u, 314727461u, 1335160250u, 2084630531u, 1156261526u, 316766066u, 112090465u, 3129033323u, 2746885618u, 636616055u, 2582210744u, 1721064910u, 3468394263u, 470463518u, 2076016059u, 408721884u, 2121041886u, 378460278u, 1915948002u, 357324860u, 2301682622u, 2691859523u, 1869756364u, 2429314418u, 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3680311316u, 4274382900u, 914186796u, 2264886523u, 3869634032u, 1254199592u, 1131020455u, 194781179u, 429923922u, 2763792336u, 2052895198u, 3997373194u, 3440090658u, 2165746386u, 1575500242u, 3463310191u, 2064974716u, 3779513671u, 3106421434u, 880320527u, 3281914119u, 286569042u, 3909096631u, 122359727u, 1429837716u, 252230074u, 4111461225u, 762273136u, 93658514u, 2766407143u, 3623657004u, 3869801679u, 3925695921u, 2390397316u, 2499025338u, 2741806539u, 2507199021u, 1659221866u, 361292116u, 4048761557u, 3797133396u, 1517903247u, 3121647246u, 3884308578u, 1697201500u, 1558800262u, 4150812360u, 3161302278u, 2610217849u, 641564641u, 183814518u, 2075245419u, 611996508u, 2223461433u, 329123979u, 121860586u, 860985829u, 1137889144u, 4018949439u, 2904348960u, 947795261u, 1992594155u, 4255427501u, 2281583851u, 2892637604u, 1478186924u, 3050771207u, 2767035539u, 373510582u, 1963520320u, 3763848370u, 3756817798u, 627269409u, 1806905031u, 1814444610u, 3646665053u, 1822693920u, 278515794u, 584050483u, 4142579188u, 2149745808u, 3193071606u, 1179706341u, 2693495182u, 3259749808u, 644172091u, 880509048u, 3340630542u, 3365160815u, 2384445068u, 3053081915u, 2840648309u, 1986990122u, 1084703471u, 2370410550u, 1627743573u, 2244943480u, 4057483496u, 2611595995u, 2470013639u, 4024732359u, 3987190386u, 873421687u, 2447660175u, 3226583022u, 767655877u, 2528024413u, 1962070688u, 1233635843u, 2163464207u, 659054446u, 854207134u, 258410943u, 4197831420u, 2515400215u, 3100476924u, 1961549594u, 2219491151u, 3997658851u, 163850514u, 470325051u, 2598261204u, 3052145580u, 59836528u, 1376188597u, 966733415u, 850667549u, 3622479237u, 1083731990u, 1525777459u, 4005126532u, 1428155540u, 2781907007u, 943739431u, 1493961005u, 2839096988u, 2000057832u, 1941829603u, 1901484772u, 939810041u, 3377407371u, 3090115837u, 3310840540u, 2068409688u, 3261383939u, 2212130277u, 2594774045u, 2912652418u, 4179816101u, 3534504531u, 3349254805u, 2796552902u, 1385421283u, 4259908631u, 3714780837u, 3070073945u, 3372846298u, 3835884044u, 3047965714u, 3009018735u, 744091167u, 1861124263u, 2764936304u, 1338171648u, 4222019554u, 1395200692u, 1371426007u, 3338031581u, 2525665319u, 4196233786u, 2332743921u, 1474702008u, 2274266301u, 4255175517u, 2290169528u, 1793910997u, 2188254024u, 354202001u, 3864458796u, 4280290498u, 1554419340u, 1733094688u, 2010552302u, 1561807039u, 664313606u, 2548990879u, 1084699349u, 3233936866u, 973895284u, 2386881969u, 1831995860u, 2961465052u, 1428704144u, 3269904970u, 231648253u, 2602483763u, 4125013173u, 3319187387u, 3347011944u, 1892898231u, 4019114049u, 868879116u, 4085937045u, 2378411019u, 1072588531u, 3547435717u, 2208070766u, 1069899078u, 3142980597u, 2337088907u, 1593338562u, 919414554u, 688077849u, 3625708135u, 1472447348u, 1947711896u, 3953006207u, 877438080u, 845995820u, 3150361443u, 3053496713u, 2484577841u, 224271045u, 2914958001u, 2682612949u, 806655563u, 2436224507u, 1907729235u, 2920583824u, 1251814062u, 2070814520u, 4034325578u, 497847539u, 2714317144u, 385182008u, 640855184u, 1327075087u, 1062468773u, 1757405994u, 1374270191u, 4263183176u, 3041193150u, 1037871524u, 3633173991u, 4231821821u, 2830131945u, 3505072908u, 2830570613u, 4195208715u, 575398021u, 3992840257u, 3691788221u, 1949847968u, 2999344380u, 3183782163u, 3723754342u, 759716128u, 3284107364u, 1714496583u, 15918244u, 820509475u, 2553936299u, 2201876606u, 4237151697u, 2605688266u, 3253705097u, 1008333207u, 712158730u, 1722280252u, 1933868287u, 4152736859u, 2097020806u, 584426382u, 2836501956u, 2522777566u, 1996172430u, 2122199776u, 1069285218u, 1474209360u, 690831894u, 107482532u, 3695525410u, 670591796u, 768977505u, 2412057331u, 3647886687u, 3110327607u, 1072658422u, 379861934u, 1557579480u, 4124127129u, 2271365865u, 3880613089u, 739218494u, 547346027u, 388559045u, 3147335977u, 176230425u, 3094853730u, 2554321205u, 1495176194u, 4093461535u, 3521297827u, 4108148413u, 1913727929u, 1177947623u, 1911655402u, 1053371241u, 3265708874u, 1266515850u, 1045540427u, 3194420196u, 3717104621u, 1144474110u, 1464392345u, 52070157u, 4144237690u, 3350490823u, 4166253320u, 2747410691u, }; // Return false only if offset is -1 and a spot check of 3 hashes all yield 0. bool Test(int offset, int len = 0) { #undef Check #undef IsAlive #define Check(x) do { \ const uint32_t actual = (x), e = expected[index++]; \ bool ok = actual == e; \ if (!ok) { \ cerr << "expected " << hex << e << " but got " << actual << endl; \ ++errors; \ } \ assert(ok); \ } while (0) #define IsAlive(x) do { alive += IsNonZero(x); } while (0) // After the following line is where the uses of "Check" and such will go. static int index = 0; if (offset == -1) { int alive = 0; { uint64_t h = farmhashna::Hash64WithSeeds(data, len++, SEED0, SEED1); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashna::Hash64WithSeed(data, len++, SEED); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashna::Hash64(data, len++); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } len -= 3; return alive > 0; } { uint64_t h = farmhashna::Hash64WithSeeds(data + offset, len, SEED0, SEED1); Check(h >> 32); Check((h << 32) >> 32); } { uint64_t h = farmhashna::Hash64WithSeed(data + offset, len, SEED); Check(h >> 32); Check((h << 32) >> 32); } { uint64_t h = farmhashna::Hash64(data + offset, len); Check(h >> 32); Check((h << 32) >> 32); } return true; #undef Check #undef IsAlive } int RunTest() { Setup(); int i = 0; cout << "Running farmhashnaTest"; if (!Test(-1)) { cout << "... Unavailable\n"; return NoteErrors(); } // Good. The function is attempting to hash, so run the full test. int errors_prior_to_test = errors; for ( ; i < kTestSize - 1; i++) { Test(i * i, i); } for ( ; i < kDataSize; i += i / 7) { Test(0, i); } Test(0, kDataSize); cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n"); return NoteErrors(); } #else // After the following line is where the code to print hash codes will go. void Dump(int offset, int len) { { uint64_t h = farmhashna::Hash64WithSeeds(data + offset, len, SEED0, SEED1); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } { uint64_t h = farmhashna::Hash64WithSeed(data + offset, len, SEED); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } { uint64_t h = farmhashna::Hash64(data + offset, len); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } } #endif #undef SEED #undef SEED1 #undef SEED0 } // namespace farmhashnaTest #if TESTING static int farmhashnaTestResult = farmhashnaTest::RunTest(); #else int main(int argc, char** argv) { Setup(); cout << "uint32_t expected[] = {\n"; int i = 0; for ( ; i < kTestSize - 1; i++) { farmhashnaTest::Dump(i * i, i); } for ( ; i < kDataSize; i += i / 7) { farmhashnaTest::Dump(0, i); } farmhashnaTest::Dump(0, kDataSize); cout << "};\n"; } #endif #ifndef FARMHASH_SELF_TEST_GUARD #define FARMHASH_SELF_TEST_GUARD #include #include #include using std::cout; using std::cerr; using std::endl; using std::hex; static const uint64_t kSeed0 = 1234567; static const uint64_t kSeed1 = k0; static const int kDataSize = 1 << 20; static const int kTestSize = 300; #define kSeed128 Uint128(kSeed0, kSeed1) static char data[kDataSize]; static int completed_self_tests = 0; static int errors = 0; // Initialize data to pseudorandom values. void Setup() { if (completed_self_tests == 0) { uint64_t a = 9; uint64_t b = 777; for (int i = 0; i < kDataSize; i++) { a += b; b += a; a = (a ^ (a >> 41)) * k0; b = (b ^ (b >> 41)) * k0 + i; uint8_t u = b >> 37; memcpy(data + i, &u, 1); // uint8_t -> char } } } int NoteErrors() { #define NUM_SELF_TESTS 9 if (++completed_self_tests == NUM_SELF_TESTS) std::exit(errors > 0); return errors; } template inline bool IsNonZero(T x) { return x != 0; } template <> inline bool IsNonZero(uint128_t x) { return x != Uint128(0, 0); } #endif // FARMHASH_SELF_TEST_GUARD namespace farmhashntTest { uint32_t CreateSeed(int offset, int salt) { uint32_t h = static_cast(salt & 0xffffffff); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); h += static_cast(offset & 0xffffffff); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); return h; } #undef SEED #undef SEED1 #undef SEED0 #define SEED CreateSeed(offset, -1) #define SEED0 CreateSeed(offset, 0) #define SEED1 CreateSeed(offset, 1) #undef TESTING #define TESTING 1 #if TESTING uint32_t expected[] = { 2681724312u, 797982799u, 921001710u, 2134990486u, 2244477846u, 2992121793u, 3943596029u, 452431531u, 2557197665u, 2532580744u, 3099673830u, 3696623795u, 3281581178u, 1882212500u, 275903667u, 3033004529u, 1402319660u, 2699376854u, 4222949502u, 1712034059u, 1330324210u, 2921867846u, 1728752234u, 326029180u, 3349570000u, 1612122221u, 1646032583u, 1432476832u, 3552092450u, 1499109081u, 1554038301u, 3190844552u, 540224401u, 489963606u, 1562872448u, 2128624475u, 1262831810u, 1672724608u, 2077310004u, 1911523866u, 294527927u, 1389770549u, 2026137563u, 629449419u, 2489287368u, 645684964u, 230403464u, 3272648435u, 165370827u, 1230085527u, 3628174014u, 851743255u, 1554380634u, 3667013118u, 2290487377u, 1909203251u, 1498556724u, 4165088768u, 197618179u, 914413116u, 1913303225u, 3117299654u, 1357272220u, 507436733u, 1413396341u, 146044391u, 429095991u, 3056862311u, 366414107u, 2293458109u, 1684583131u, 1170404994u, 520792961u, 1577421232u, 4033596884u, 4229339322u, 3242407770u, 2649785113u, 816692935u, 3555213933u, 517646945u, 2180594090u, 3047062993u, 2391606125u, 382936554u, 788479970u, 2826990641u, 3167748333u, 1758123094u, 389974094u, 3338548567u, 2583576230u, 3198590202u, 4155628142u, 542201663u, 2856634168u, 3948351189u, 4194218315u, 1467786451u, 2743592929u, 1062268187u, 3810665822u, 2560479831u, 997658837u, 3067277639u, 1211737169u, 59581167u, 1389679610u, 4189944477u, 100876854u, 2062343506u, 3088828656u, 3284356565u, 3130054947u, 3532596884u, 3887208531u, 259034107u, 3233195759u, 3200749877u, 760633989u, 1115203611u, 1516407838u, 1778459926u, 2146672889u, 2457048126u, 2217471853u, 862072556u, 3745267835u, 701920051u, 581695350u, 1410111809u, 3326135446u, 2187968410u, 4267859263u, 479241367u, 2868987960u, 704325635u, 1418509533u, 735688735u, 3283299459u, 813690332u, 1439630796u, 3195309868u, 1616408198u, 3254795114u, 2799925823u, 3929484338u, 1798536177u, 4205965408u, 1499475160u, 4247675634u, 3779953975u, 785893184u, 2778575413u, 1160134629u, 823113169u, 4116162021u, 4167766971u, 2487440590u, 4004655503u, 4044418876u, 1462554406u, 2011102035u, 4265993528u, 576405853u, 4038839101u, 2425317635u, 1401013391u, 3062418115u, 3167030094u, 2602636307u, 4264167741u, 4017058800u, 1029665228u, 4036354071u, 2670703363u, 688472265u, 1054670286u, 338058159u, 1539305024u, 146827036u, 4060134777u, 2502815838u, 1603444633u, 2448966429u, 3891353218u, 1082330589u, 201837927u, 2848283092u, 883849006u, 1982110346u, 541496720u, 133643215u, 3847827123u, 4015671361u, 2849988118u, 3452457457u, 2102063419u, 3281002516u, 1539151988u, 1147951686u, 2005032160u, 2415262714u, 116647396u, 1029284767u, 2159170082u, 1919171906u, 2017579106u, 2473524405u, 1694443528u, 3671562289u, 505662155u, 1019936943u, 1511077569u, 773792826u, 2089123665u, 484732447u, 1120017626u, 2809286837u, 4029205195u, 1097806406u, 136118734u, 4017075736u, 1403506686u, 1516736273u, 2562064338u, 2984955003u, 3071338162u, 1923531348u, 771592405u, 2586632018u, 4032960199u, 2687561076u, 308584855u, 1692079268u, 2565680167u, 3674576684u, 3770488806u, 69201295u, 1255084262u, 3593730713u, 54945052u, 1939595371u, 2432427547u, 2295501078u, 1280920000u, 82177963u, 1121403845u, 2889101923u, 713121337u, 1747052377u, 927011680u, 4142246789u, 1958963937u, 1636932722u, 4075249328u, 2025886508u, 3026358429u, 1845587644u, 3615577014u, 1363253259u, 3087190425u, 341851980u, 2515339233u, 1276595523u, 460237542u, 4198897105u, 2069753399u, 4278599955u, 356742959u, 3735275001u, 1750561299u, 668829411u, 3384018814u, 4233785523u, 451656820u, 107312677u, 2390172694u, 1216645846u, 164402616u, 1689811113u, 1767810825u, 1397772514u, 3323383489u, 2986430557u, 207428029u, 2260498180u, 2360400900u, 1263709570u, 1377764574u, 4252610345u, 1099809675u, 2776960536u, 3542220540u, 3752806924u, 337070226u, 3267551635u, 1306761320u, 2220373824u, 4109252858u, 896322512u, 1788337208u, 1336556841u, 2911512007u, 3712582785u, 3071359622u, 2561488770u, 3898950547u, 536047554u, 2040551642u, 3528794619u, 3565689036u, 1197100813u, 1864569342u, 3329594980u, 490608221u, 1174785921u, 3287246572u, 2163330264u, 500120236u, 2520062970u, 1561519055u, 4042710240u, 2774151984u, 3160666939u, 96459446u, 1878067032u, 4237425634u, 2952135524u, 4100839753u, 1265237690u, 4246879223u, 834830418u, 3476334357u, 4277111759u, 2511026735u, 3065234219u, 556796152u, 198182691u, 2913077464u, 1535115487u, 4046477658u, 140762681u, 990407433u, 2198985327u, 2926590471u, 559702706u, 82077489u, 1096697687u, 4190838199u, 3046872820u, 1583801700u, 2185339100u, 3912423882u, 3703603898u, 2540185277u, 1446869792u, 4051584612u, 2719373510u, 1675560450u, 1996164093u, 405251683u, 2864244470u, 4071581802u, 2028708916u, 803575837u, 557660441u, 3841480082u, 255451671u, 779434428u, 3452203069u, 2285701422u, 1568745354u, 823305654u, 3184047862u, 4159715581u, 3160134214u, 3198900547u, 1566527339u, 4194096960u, 1496132623u, 1719108984u, 2584236470u, 531310503u, 3456882941u, 3382290593u, 467441309u, 3241407531u, 2540270567u, 1397502982u, 3348545480u, 811750340u, 1017047954u, 2540585554u, 3531646869u, 943914610u, 1903578924u, 1911188923u, 241574049u, 3181425568u, 3529565564u, 240953857u, 2964595704u, 3828377737u, 4260564140u, 4262383425u, 383233885u, 4051263539u, 919677938u, 1683612329u, 4204155962u, 2283918569u, 4153726847u, 350160869u, 1387233546u, 1891558063u, 740563169u, 330624974u, 2948665536u, 376390582u, 3799363969u, 3187805406u, 2263421398u, 1928519266u, 2746577402u, 2108753646u, 768287270u, 2247006571u, 212490675u, 917121602u, 2549835613u, 2864033668u, 3738062408u, 2006922227u, 2616619070u, 3449066284u, 431292293u, 786322314u, 1415970351u, 3263135197u, 2954777083u, 3206261120u, 2287507921u, 1781944746u, 4081586725u, 1109175923u, 1813855658u, 1129462471u, 1037031473u, 3389003793u, 3122687303u, 1164309901u, 3193251135u, 3626554867u, 3071568023u, 3656006011u, 1167681812u, 3155218919u, 2704165015u, 1854985978u, 1712976649u, 878608872u, 4155949943u, 3163786257u, 1626463554u, 1256485167u, 582664250u, 2083771672u, 804336148u, 2770847216u, 1674051445u, 3992583643u, 2966108111u, 900741486u, 4014551783u, 300318232u, 3517585534u, 542270815u, 760762191u, 1216399252u, 643179562u, 3652676161u, 2990167340u, 3262252593u, 2134299399u, 411263051u, 1342880802u, 1967599860u, 853593042u, 2682611693u, 850464484u, 3286110054u, 3842907484u, 3623364733u, 3693536939u, 1615375832u, 2318423400u, 4145497671u, 1728968857u, 2686506989u, 1502282913u, 2151665147u, 3651607391u, 1178454681u, 4146839064u, 2601416506u, 1448097974u, 238887261u, 4093725287u, 2367569534u, 679517009u, 3539886328u, 3086277222u, 1390394371u, 119173722u, 1766260771u, 751439914u, 215917713u, 2656990891u, 1570750352u, 3533987737u, 3576119563u, 963183826u, 3796810515u, 136547246u, 2592925324u, 427154472u, 1228758574u, 1464255968u, 2984611177u, 2001585786u, 1525438381u, 1348536411u, 2861338018u, 764077711u, 3785343245u, 457568934u, 4104954272u, 2381948487u, 3148473363u, 2180270337u, 1387729170u, 951677556u, 2721005055u, 66786703u, 1149351924u, 1895026827u, 3711056516u, 3638638708u, 2263003308u, 3448840877u, 225333538u, 3797521928u, 3262952567u, 2078619498u, 1178073973u, 3288261538u, 1496966875u, 2481012988u, 114945840u, 1632780103u, 2087949619u, 3787017905u, 2575395164u, 2971726178u, 3642087909u, 3894199764u, 203853421u, 425935223u, 3565833278u, 1748785729u, 580966986u, 2124704694u, 1107045577u, 1067532701u, 1406028344u, 18613994u, 3476683808u, 3762914298u, 1844996900u, 904215228u, 1118521573u, 3657647605u, 3136157065u, 2287683323u, 126005630u, 3555092974u, 49515858u, 1010661841u, 1902040126u, 1400735275u, 2771676666u, 2225229957u, 3454177594u, 2883475137u, 4144472319u, 1051332394u, 542648229u, 1669710469u, 553041029u, 584127807u, 2993670925u, 3587959456u, 1745399498u, 1404723176u, 1334333531u, 3239516985u, 1275954779u, 367320647u, 3684418197u, 4030809053u, 484559105u, 4255931645u, 4271715616u, 3171911678u, 928543347u, 2159512867u, 313902234u, 647086234u, 577214736u, 1130129573u, 995791646u, 1645086060u, 4122335794u, 1064648931u, 2752145076u, 3312498873u, 4238535494u, 1471227427u, 633688562u, 1959779970u, 766642813u, 1380896111u, 3647601207u, 1733961041u, 521947915u, 189164145u, 486382294u, 3770038872u, 3235740744u, 1912506671u, 2276864677u, 1588060152u, 2504457929u, 1471020554u, 3623212998u, 3026631806u, 2342164722u, 1674890530u, 3011542850u, 3549160092u, 4290680005u, 3943068002u, 2273781461u, 2127663659u, 1646681121u, 447810651u, 2366308558u, 970504950u, 2008155560u, 2695940969u, 3444688454u, 1739318893u, 2683090634u, 2774816580u, 437560100u, 512012738u, 3305170944u, 665292744u, 3580039116u, 1579404983u, 3397891494u, 710590371u, 2514565805u, 3624609754u, 3516075816u, 1314000850u, 1935166880u, 3257747610u, 3776931214u, 3183054185u, 675129307u, 3333261712u, 1154611403u, 2759854023u, 1963228038u, 505138315u, 1803966773u, 4032705384u, 798395739u, 3473799845u, 476400898u, 602972493u, 3289878097u, 2520311409u, 3214794876u, 748160407u, 1326769504u, 902775872u, 1372805534u, 1213925114u, 3009384989u, 3781981134u, 2835608783u, 2716786748u, 1669490957u, 1089334066u, 250756920u, 4041016629u, 2495807367u, 2008251381u, 106212622u, 1927268995u, 2251978818u, 3788056262u, 3678660147u, 2656772270u, 1997584981u, 2668998785u, 2954162084u, 845687881u, 776018378u, 2066910012u, 918315064u, }; // Return false only if offset is -1 and a spot check of 3 hashes all yield 0. bool Test(int offset, int len = 0) { #undef Check #undef IsAlive #define Check(x) do { \ const uint32_t actual = (x), e = expected[index++]; \ bool ok = actual == e; \ if (!ok) { \ cerr << "expected " << hex << e << " but got " << actual << endl; \ ++errors; \ } \ assert(ok); \ } while (0) #define IsAlive(x) do { alive += IsNonZero(x); } while (0) // After the following line is where the uses of "Check" and such will go. static int index = 0; if (offset == -1) { int alive = 0; IsAlive(farmhashnt::Hash32WithSeed(data, len++, SEED)); IsAlive(farmhashnt::Hash32(data, len++)); IsAlive(farmhashnt::Hash32(data, len++)); len -= 3; return alive > 0; } Check(farmhashnt::Hash32WithSeed(data + offset, len, SEED)); Check(farmhashnt::Hash32(data + offset, len)); return true; #undef Check #undef IsAlive } int RunTest() { Setup(); int i = 0; cout << "Running farmhashntTest"; if (!Test(-1)) { cout << "... Unavailable\n"; return NoteErrors(); } // Good. The function is attempting to hash, so run the full test. int errors_prior_to_test = errors; for ( ; i < kTestSize - 1; i++) { Test(i * i, i); } for ( ; i < kDataSize; i += i / 7) { Test(0, i); } Test(0, kDataSize); cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n"); return NoteErrors(); } #else // After the following line is where the code to print hash codes will go. void Dump(int offset, int len) { cout << farmhashnt::Hash32WithSeed(data + offset, len, SEED) << "u," << endl; cout << farmhashnt::Hash32(data + offset, len) << "u," << endl; } #endif #undef SEED #undef SEED1 #undef SEED0 } // namespace farmhashntTest #if TESTING static int farmhashntTestResult = farmhashntTest::RunTest(); #else int main(int argc, char** argv) { Setup(); cout << "uint32_t expected[] = {\n"; int i = 0; for ( ; i < kTestSize - 1; i++) { farmhashntTest::Dump(i * i, i); } for ( ; i < kDataSize; i += i / 7) { farmhashntTest::Dump(0, i); } farmhashntTest::Dump(0, kDataSize); cout << "};\n"; } #endif #ifndef FARMHASH_SELF_TEST_GUARD #define FARMHASH_SELF_TEST_GUARD #include #include #include using std::cout; using std::cerr; using std::endl; using std::hex; static const uint64_t kSeed0 = 1234567; static const uint64_t kSeed1 = k0; static const int kDataSize = 1 << 20; static const int kTestSize = 300; #define kSeed128 Uint128(kSeed0, kSeed1) static char data[kDataSize]; static int completed_self_tests = 0; static int errors = 0; // Initialize data to pseudorandom values. void Setup() { if (completed_self_tests == 0) { uint64_t a = 9; uint64_t b = 777; for (int i = 0; i < kDataSize; i++) { a += b; b += a; a = (a ^ (a >> 41)) * k0; b = (b ^ (b >> 41)) * k0 + i; uint8_t u = b >> 37; memcpy(data + i, &u, 1); // uint8_t -> char } } } int NoteErrors() { #define NUM_SELF_TESTS 9 if (++completed_self_tests == NUM_SELF_TESTS) std::exit(errors > 0); return errors; } template inline bool IsNonZero(T x) { return x != 0; } template <> inline bool IsNonZero(uint128_t x) { return x != Uint128(0, 0); } #endif // FARMHASH_SELF_TEST_GUARD namespace farmhashsaTest { uint32_t CreateSeed(int offset, int salt) { uint32_t h = static_cast(salt & 0xffffffff); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); h += static_cast(offset & 0xffffffff); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); return h; } #undef SEED #undef SEED1 #undef SEED0 #define SEED CreateSeed(offset, -1) #define SEED0 CreateSeed(offset, 0) #define SEED1 CreateSeed(offset, 1) #undef TESTING #define TESTING 1 #if TESTING uint32_t expected[] = { 4223616069u, 3696677242u, 4081014168u, 2576519988u, 2212771159u, 1112731063u, 1020067935u, 3955445564u, 1451961420u, 653440099u, 31917516u, 2957164615u, 2590087362u, 3879448744u, 176305566u, 2447367541u, 1359016305u, 3363804638u, 1117290165u, 1062549743u, 2437877004u, 1894455839u, 673206794u, 3486923651u, 3269862919u, 2303349487u, 1380660650u, 595525107u, 1525325287u, 2025609358u, 176408838u, 1592885012u, 864896482u, 2101378090u, 3489229104u, 2118965695u, 581644891u, 2718789079u, 631613207u, 4228658372u, 3867875546u, 3531368319u, 3804516756u, 3317755099u, 1619744564u, 2884717286u, 1088213445u, 2667691076u, 3727873235u, 2330406762u, 858590707u, 123802208u, 4150036245u, 182283099u, 1478882570u, 3282617403u, 819171187u, 1172627392u, 4254302102u, 2957028020u, 437030323u, 2452147680u, 2868246750u, 3530169402u, 3154852132u, 215019192u, 357580983u, 1354454461u, 1108813287u, 2324008118u, 2315997713u, 4181601562u, 1360882441u, 92423273u, 3048866755u, 3369188505u, 3664371439u, 2920710428u, 1027891570u, 2653166430u, 3461888315u, 1475780447u, 292769636u, 1737473313u, 4064110516u, 4170160075u, 762850927u, 3630603695u, 2803307356u, 844987665u, 460980967u, 3005635467u, 2802568977u, 588668033u, 2148940781u, 3239099984u, 1266953698u, 3197808789u, 3519942533u, 2511995334u, 2553810188u, 871667697u, 1358675720u, 1499319171u, 2044931270u, 1210355103u, 807152540u, 3262320756u, 2810214575u, 1813386141u, 4089465863u, 903928165u, 1388899322u, 3209183659u, 834536144u, 2733354550u, 2742289921u, 3689042563u, 2655593281u, 4169686303u, 415985561u, 138892376u, 516115393u, 65683883u, 4162865100u, 889944635u, 313566528u, 3346420907u, 1504303591u, 2256809275u, 742243229u, 779775302u, 3140940172u, 2312556111u, 2304095772u, 1151741606u, 2194712422u, 1714084652u, 3272736835u, 1311540658u, 191179665u, 3996605106u, 1657345233u, 4205442903u, 1553339212u, 2351843044u, 1647502006u, 2525516233u, 292202846u, 1498646290u, 1429323381u, 974274898u, 3759331561u, 2881238887u, 826787221u, 1069622448u, 221991032u, 1462969082u, 2799661508u, 364022781u, 2594244377u, 797773898u, 4097839290u, 1529150125u, 2456805570u, 541503425u, 3936326142u, 3112719954u, 775223581u, 3074018423u, 3198488875u, 1772191849u, 2456535211u, 3154686028u, 1520862019u, 4005829426u, 1306433767u, 1943028506u, 2246000782u, 1057766454u, 3761996982u, 3441075333u, 898641979u, 3450209088u, 3941329307u, 3289922449u, 3085075827u, 1814193220u, 690422997u, 2627846676u, 2653520704u, 3739145533u, 3996776010u, 2287072592u, 1346671698u, 3082629900u, 2298811274u, 3639722036u, 1729419228u, 1836765953u, 3708118742u, 213436u, 950223749u, 3734247682u, 2924575678u, 1382024841u, 2431637732u, 3448846682u, 1341301397u, 4206956590u, 1730650902u, 2581075456u, 1542359141u, 707222542u, 2925350541u, 3846303536u, 3579103295u, 3932175763u, 1339615732u, 848825750u, 1070170828u, 1964973818u, 577060344u, 607721296u, 4031023048u, 406883794u, 3991905552u, 1198544082u, 872468460u, 1044847096u, 3159976313u, 3020028266u, 2108700400u, 3373767922u, 264431841u, 2817097007u, 3700061048u, 1733731531u, 3459415893u, 80378591u, 1479875104u, 19735612u, 1382658977u, 3416562245u, 1959852842u, 2384002344u, 124683828u, 3725782174u, 2300301222u, 393852269u, 1302492002u, 3623776492u, 3787086417u, 1730024749u, 1710531361u, 443700716u, 1461987482u, 671998131u, 3018380746u, 2592292305u, 3390799372u, 3945101155u, 3743494852u, 3716045582u, 996005166u, 320698449u, 3420221765u, 1518157951u, 2555810666u, 3381929684u, 2019638523u, 3088262796u, 2072178906u, 3433649364u, 203906916u, 34663784u, 290301305u, 1188021504u, 3754681145u, 3920313139u, 2840496520u, 1656802962u, 2288475489u, 3399185138u, 1296000826u, 2362384746u, 309633360u, 2719851778u, 776035930u, 3200733043u, 365690832u, 3326378243u, 1500331457u, 1625708592u, 4230903462u, 715344888u, 3363777768u, 2243620288u, 2890765789u, 553154234u, 4044100108u, 4056887320u, 1185656496u, 3671476744u, 1064586897u, 1154949698u, 3493481974u, 1294573722u, 1869224012u, 2530084956u, 995321553u, 833419249u, 563815282u, 250258043u, 2970801822u, 441007535u, 42246961u, 2820426655u, 2878882436u, 2363245780u, 2138489282u, 2972360481u, 2312619393u, 3598664848u, 3071556076u, 776990325u, 3220427357u, 2257939577u, 3817305903u, 1502979698u, 3159755934u, 3955997276u, 2423850008u, 1959927572u, 1219782288u, 4119776679u, 1124253854u, 3678052422u, 2620644947u, 1262408666u, 3480072280u, 2627137665u, 807538749u, 3276646337u, 518510128u, 1137828655u, 1498449110u, 3031692317u, 1125635969u, 1130096111u, 780007336u, 3111856399u, 1014917264u, 780877352u, 2909458336u, 4235949214u, 2423879289u, 275888892u, 3891926795u, 3538163953u, 54815161u, 162228302u, 258154068u, 3554455591u, 1801469029u, 2801563220u, 726560058u, 2450221940u, 3677582978u, 440993800u, 424762443u, 2624525253u, 2587715329u, 2292264424u, 1074856749u, 3294752007u, 3164112672u, 2399146799u, 1920182465u, 3858835361u, 193755240u, 3333610311u, 1757504059u, 2576027039u, 2775253365u, 2939191561u, 1046147275u, 235149906u, 4262218222u, 2900542726u, 2260154702u, 1019551635u, 1194720570u, 3519118691u, 3039483153u, 84918216u, 3053381097u, 2572396843u, 3849763371u, 2782686780u, 3710049554u, 3403430713u, 2346080784u, 2496307442u, 1597281872u, 696018239u, 704625714u, 623026921u, 3182413559u, 3794540330u, 305497722u, 1592680199u, 2377854072u, 3060601746u, 3953057908u, 3941551588u, 1033716182u, 2765716854u, 1309699058u, 3519400181u, 3073370877u, 115583008u, 4032909296u, 2944563574u, 3762753718u, 192842727u, 1711348701u, 3086147235u, 1658229443u, 1479783872u, 3839977157u, 225619117u, 1349684817u, 1964813173u, 565753187u, 2530252046u, 840014353u, 1645183704u, 3668429078u, 3438418557u, 639704059u, 360837811u, 2531807958u, 1572353913u, 2116037299u, 1948437512u, 744553393u, 2380697034u, 3775234105u, 3816065157u, 301868653u, 2960939561u, 3306528247u, 2389296549u, 805918610u, 1759358265u, 1760876328u, 2827601706u, 2944594708u, 3313666458u, 2022601495u, 730938791u, 193539397u, 2026103244u, 802928398u, 2630934308u, 782805818u, 3499326016u, 293509489u, 3646131514u, 3182478647u, 854800333u, 2284531628u, 438528022u, 2339298129u, 1692289216u, 2427728723u, 46501288u, 350652353u, 1355971222u, 889682372u, 944799254u, 2763906061u, 2807550612u, 2683762637u, 100870317u, 2449357318u, 2638348436u, 4206088869u, 1788948473u, 3537588549u, 2782490204u, 134406470u, 2409190528u, 2362439849u, 1861661528u, 2101513194u, 1424834765u, 3581765745u, 3185999525u, 2057487100u, 2303941176u, 3639628788u, 1180265315u, 230437935u, 2108319366u, 1131685143u, 1055685292u, 1509007009u, 1258485140u, 560525005u, 3598799040u, 3835680585u, 1851859628u, 332858996u, 641769248u, 4252450037u, 865386707u, 720719117u, 3133612164u, 3833045874u, 3492515435u, 2465970289u, 4234420011u, 573859916u, 252532886u, 870392318u, 4051320920u, 894929092u, 3748361688u, 699355960u, 1885212350u, 1609756949u, 461896870u, 1337065461u, 1775211059u, 1786193749u, 2815154643u, 2128729882u, 969639529u, 3960427545u, 859416958u, 2739758802u, 2698032197u, 2813292418u, 1985467524u, 396604317u, 4122172759u, 1201259789u, 4282051702u, 3270018895u, 961215209u, 961075860u, 4211926998u, 4088374597u, 577510509u, 3058349487u, 4025377754u, 2815478438u, 471023164u, 3947959608u, 4161486934u, 2299888461u, 1103571511u, 2450153872u, 1839939275u, 108299608u, 858086440u, 1030152945u, 3895328530u, 3009080718u, 3690840454u, 3847025277u, 152331362u, 161365689u, 831319961u, 2166017294u, 3945322722u, 4059970216u, 1420824131u, 2770648308u, 1567250186u, 2181067149u, 1939743488u, 3080158120u, 3435218248u, 2495237495u, 3814085102u, 3180983013u, 3199054292u, 2204745908u, 1140337267u, 2213569784u, 1941879842u, 2105562605u, 3618835614u, 2247103645u, 2492473487u, 856414299u, 166022030u, 4080104712u, 3218935344u, 3284220561u, 4261581452u, 1206944836u, 3496705432u, 2215996876u, 3154627465u, 3384005496u, 742170556u, 1333047620u, 802680366u, 156833431u, 2682100354u, 2493654830u, 584848366u, 1691693131u, 2169934170u, 779968026u, 2099545800u, 1423039695u, 4292110968u, 4266576788u, 149142597u, 748501873u, 3865014822u, 1913588198u, 130285614u, 3500768879u, 915458923u, 3071792750u, 1339986633u, 4143929149u, 4048379479u, 725193827u, 1375113643u, 2425277412u, 4144659274u, 465714768u, 226991589u, 2212127704u, 3936145258u, 2891024846u, 3816000225u, 979331165u, 1749907536u, 53847318u, 1462525833u, 2961425455u, 368859113u, 3572721452u, 453048644u, 1628629918u, 3497673923u, 3619079585u, 139870565u, 1518176798u, 3933074281u, 1878623729u, 2074035641u, 3016759257u, 1313053591u, 2557706970u, 2348296582u, 962370022u, 2337285014u, 1618936717u, 1915877085u, 2743743122u, 3250783882u, 1346652536u, 143311109u, 2443788461u, 1048248964u, 2806619339u, 3263266976u, 1668146349u, 3397428868u, 3276188862u, 1774196343u, 1993847813u, 2771079610u, 476672419u, 2119050359u, 2918326659u, 2245402721u, 2692910474u, 2374383269u, 342400227u, 2961437795u, 3899230368u, 337787132u, 3664444935u, 1269451153u, 2971526729u, 1486511182u, 791070133u, 2570319890u, 3482497490u, 2134230518u, 4273391202u, 1825511330u, 3947753714u, 1389755724u, 3995075516u, 2081052615u, 3626343470u, 4213603435u, 2137917278u, 2898987303u, 3059215715u, 3383237881u, 3003674434u, 409174425u, 1911915604u, 2087728055u, 2942005882u, 3386522440u, 714936074u, 261924004u, 3268784033u, 1141188757u, 2413217552u, 1515163433u, }; // Return false only if offset is -1 and a spot check of 3 hashes all yield 0. bool Test(int offset, int len = 0) { #undef Check #undef IsAlive #define Check(x) do { \ const uint32_t actual = (x), e = expected[index++]; \ bool ok = actual == e; \ if (!ok) { \ cerr << "expected " << hex << e << " but got " << actual << endl; \ ++errors; \ } \ assert(ok); \ } while (0) #define IsAlive(x) do { alive += IsNonZero(x); } while (0) // After the following line is where the uses of "Check" and such will go. static int index = 0; if (offset == -1) { int alive = 0; IsAlive(farmhashsa::Hash32WithSeed(data, len++, SEED)); IsAlive(farmhashsa::Hash32(data, len++)); IsAlive(farmhashsa::Hash32(data, len++)); len -= 3; return alive > 0; } Check(farmhashsa::Hash32WithSeed(data + offset, len, SEED)); Check(farmhashsa::Hash32(data + offset, len)); return true; #undef Check #undef IsAlive } int RunTest() { Setup(); int i = 0; cout << "Running farmhashsaTest"; if (!Test(-1)) { cout << "... Unavailable\n"; return NoteErrors(); } // Good. The function is attempting to hash, so run the full test. int errors_prior_to_test = errors; for ( ; i < kTestSize - 1; i++) { Test(i * i, i); } for ( ; i < kDataSize; i += i / 7) { Test(0, i); } Test(0, kDataSize); cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n"); return NoteErrors(); } #else // After the following line is where the code to print hash codes will go. void Dump(int offset, int len) { cout << farmhashsa::Hash32WithSeed(data + offset, len, SEED) << "u," << endl; cout << farmhashsa::Hash32(data + offset, len) << "u," << endl; } #endif #undef SEED #undef SEED1 #undef SEED0 } // namespace farmhashsaTest #if TESTING static int farmhashsaTestResult = farmhashsaTest::RunTest(); #else int main(int argc, char** argv) { Setup(); cout << "uint32_t expected[] = {\n"; int i = 0; for ( ; i < kTestSize - 1; i++) { farmhashsaTest::Dump(i * i, i); } for ( ; i < kDataSize; i += i / 7) { farmhashsaTest::Dump(0, i); } farmhashsaTest::Dump(0, kDataSize); cout << "};\n"; } #endif #ifndef FARMHASH_SELF_TEST_GUARD #define FARMHASH_SELF_TEST_GUARD #include #include #include using std::cout; using std::cerr; using std::endl; using std::hex; static const uint64_t kSeed0 = 1234567; static const uint64_t kSeed1 = k0; static const int kDataSize = 1 << 20; static const int kTestSize = 300; #define kSeed128 Uint128(kSeed0, kSeed1) static char data[kDataSize]; static int completed_self_tests = 0; static int errors = 0; // Initialize data to pseudorandom values. void Setup() { if (completed_self_tests == 0) { uint64_t a = 9; uint64_t b = 777; for (int i = 0; i < kDataSize; i++) { a += b; b += a; a = (a ^ (a >> 41)) * k0; b = (b ^ (b >> 41)) * k0 + i; uint8_t u = b >> 37; memcpy(data + i, &u, 1); // uint8_t -> char } } } int NoteErrors() { #define NUM_SELF_TESTS 9 if (++completed_self_tests == NUM_SELF_TESTS) std::exit(errors > 0); return errors; } template inline bool IsNonZero(T x) { return x != 0; } template <> inline bool IsNonZero(uint128_t x) { return x != Uint128(0, 0); } #endif // FARMHASH_SELF_TEST_GUARD namespace farmhashsuTest { uint32_t CreateSeed(int offset, int salt) { uint32_t h = static_cast(salt & 0xffffffff); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); h += static_cast(offset & 0xffffffff); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); return h; } #undef SEED #undef SEED1 #undef SEED0 #define SEED CreateSeed(offset, -1) #define SEED0 CreateSeed(offset, 0) #define SEED1 CreateSeed(offset, 1) #undef TESTING #define TESTING 1 #if TESTING uint32_t expected[] = { 4223616069u, 3696677242u, 4081014168u, 2576519988u, 2212771159u, 1112731063u, 1020067935u, 3955445564u, 1451961420u, 653440099u, 31917516u, 2957164615u, 2590087362u, 3879448744u, 176305566u, 2447367541u, 1359016305u, 3363804638u, 1117290165u, 1062549743u, 2437877004u, 1894455839u, 673206794u, 3486923651u, 3269862919u, 2303349487u, 1380660650u, 595525107u, 1525325287u, 2025609358u, 176408838u, 1592885012u, 864896482u, 2101378090u, 3489229104u, 2118965695u, 581644891u, 2718789079u, 631613207u, 4228658372u, 3867875546u, 3531368319u, 3804516756u, 3317755099u, 1619744564u, 2884717286u, 1088213445u, 2667691076u, 3727873235u, 2330406762u, 858590707u, 457744844u, 4150036245u, 2000404290u, 1478882570u, 901678172u, 819171187u, 195942998u, 4254302102u, 3967266927u, 437030323u, 4018009204u, 2868246750u, 3540087514u, 3154852132u, 3319116625u, 357580983u, 3177665294u, 1108813287u, 1253366798u, 2315997713u, 510718750u, 1360882441u, 2770216279u, 3048866755u, 3406961221u, 3664371439u, 1151145514u, 1027891570u, 2699067992u, 3461888315u, 198061905u, 292769636u, 1106771795u, 4064110516u, 3258279756u, 762850927u, 1818699721u, 2803307356u, 3919169404u, 460980967u, 3125535078u, 2802568977u, 3582546426u, 2148940781u, 3963274378u, 1266953698u, 204185123u, 1100034381u, 3009193601u, 4200651967u, 274889605u, 2700589508u, 952511689u, 3765324859u, 3465498478u, 4014967037u, 2070988082u, 2972423530u, 3068638223u, 4156773651u, 489509804u, 1323863238u, 3731914806u, 2846098469u, 2728930632u, 346814072u, 848146907u, 551160669u, 4165126521u, 2039095001u, 4179859388u, 2434936359u, 2764414551u, 238491210u, 732483969u, 3366512764u, 478307468u, 4124179572u, 4142733597u, 1953448206u, 4199329278u, 865077060u, 2627662116u, 2802499360u, 3141206831u, 1959218197u, 911371451u, 125987200u, 2821366175u, 2530992747u, 2409206225u, 117991880u, 2133402461u, 895510531u, 428719601u, 3036014536u, 1223783733u, 733793540u, 970650405u, 547701766u, 570764615u, 3224485368u, 3192714940u, 319942831u, 3940200341u, 362056204u, 2832368105u, 1853281226u, 3296434636u, 3752508307u, 604292768u, 2231940616u, 1204094681u, 866194005u, 2405201650u, 2466384396u, 380829379u, 230033818u, 2783417588u, 4249886729u, 829569301u, 2988322580u, 2299983554u, 74748560u, 737514425u, 3153050211u, 652642663u, 1270205115u, 227197032u, 2773091790u, 325849216u, 49998791u, 4043203010u, 3662748068u, 1709364383u, 1179105165u, 1478504366u, 2980456610u, 1167476429u, 1590390732u, 1306256496u, 292008135u, 374690995u, 1809200819u, 1680595904u, 646040226u, 1742445560u, 2435776844u, 3703683804u, 478742495u, 814967947u, 2698190177u, 1003617993u, 1436118705u, 217056304u, 1412287094u, 2738417466u, 2933279339u, 3461877733u, 1203141205u, 2119492857u, 1134895723u, 1560001021u, 3786320122u, 3748116258u, 3486219595u, 702138030u, 1062984182u, 232789133u, 1566523968u, 3885443778u, 1820171888u, 3655858585u, 2316903005u, 2678779620u, 395625433u, 1609107564u, 3108726411u, 2937837224u, 3911907151u, 557272509u, 3893435978u, 1542613576u, 1079886893u, 2624566322u, 1413700616u, 2796974006u, 1922556114u, 562820464u, 2845409784u, 54180312u, 1898782464u, 3681814953u, 2417064617u, 1815464483u, 911626132u, 2964575550u, 1852696128u, 2319647785u, 1998904590u, 619992689u, 3073207513u, 1238163512u, 3199435982u, 828667254u, 3561155502u, 3943095163u, 1045711849u, 2238679131u, 2114975398u, 713808403u, 3871787494u, 2572031161u, 2360934075u, 2337781107u, 262596504u, 693836699u, 2129369850u, 3543189427u, 962205222u, 3685581020u, 692974477u, 725182211u, 646123906u, 2368836544u, 2505872733u, 1999977610u, 1639885802u, 1475058032u, 207023609u, 2773581234u, 3524857793u, 3433371102u, 3243027613u, 1787668353u, 985757946u, 3896012929u, 702356957u, 3559331129u, 884084870u, 4009998120u, 648888720u, 1403349048u, 1624342778u, 1766674171u, 2518582204u, 3251243146u, 792751003u, 1377201813u, 3629686054u, 1583734324u, 3647107626u, 4258564381u, 1469878609u, 1940598241u, 2755003690u, 1907120418u, 109916701u, 775347954u, 2090960874u, 611281803u, 3470490146u, 3301663253u, 1835412158u, 1803066146u, 591872433u, 550703713u, 1495089683u, 826492808u, 817200035u, 4177474571u, 688070143u, 971427632u, 1442499481u, 3568640348u, 2789993738u, 85808128u, 2058346726u, 394058570u, 3466511434u, 318905230u, 4149248030u, 415308316u, 165997598u, 1219639412u, 1648022659u, 2857432523u, 1422508004u, 468095522u, 296968649u, 430250611u, 1775562314u, 2976361671u, 1040036362u, 1372510167u, 292746272u, 3408238954u, 626061886u, 1317637569u, 1237775792u, 1218490455u, 2224234499u, 590942419u, 713995643u, 3541889330u, 4140218960u, 3529791107u, 354462673u, 842607274u, 365048533u, 2638303414u, 3560458014u, 31621379u, 4210854794u, 1273118792u, 2572743762u, 3513175801u, 402066986u, 602524471u, 565029192u, 180576438u, 1288605959u, 2896244423u, 1420543484u, 1329862227u, 1791567324u, 4248690247u, 12917038u, 3483481310u, 2082050731u, 1611921143u, 2443766548u, 2216338811u, 2528006095u, 2984009021u, 674210884u, 2857608106u, 2155534809u, 1023105067u, 2968955846u, 3303624302u, 2502112850u, 245749006u, 3175229091u, 3342796184u, 3613785362u, 1614168851u, 2582149283u, 895403488u, 416205023u, 3792242000u, 529397534u, 299415203u, 4284673348u, 2096851282u, 1864524731u, 2012577738u, 3426363316u, 1387308508u, 1143610148u, 2027467219u, 3772856163u, 3453862623u, 2661437174u, 2047145955u, 2533381447u, 2059534115u, 439426587u, 1537543414u, 2384289877u, 3174229055u, 2658017753u, 2293148474u, 2359450158u, 3930242475u, 1510302397u, 3354288821u, 920095603u, 2415746928u, 2729472638u, 2261143371u, 848667611u, 919157153u, 3322393117u, 4103299943u, 413569608u, 68911216u, 3334990170u, 1228068652u, 1570056373u, 1905477543u, 2622302276u, 2935063895u, 3224810004u, 4211768578u, 828688131u, 3556122839u, 1930935348u, 2605825202u, 1540993970u, 3209115883u, 122847500u, 665638794u, 506571051u, 2691795295u, 3996966556u, 714660621u, 3662432239u, 470651837u, 1807432621u, 3755290953u, 359878860u, 2793081615u, 4065031431u, 904653062u, 2317800777u, 568501094u, 3492871707u, 2738806116u, 2883859610u, 3242080257u, 364246691u, 3601786516u, 3159362524u, 1578272201u, 1283574375u, 2912186103u, 2256279032u, 1540671086u, 2356088973u, 2892277779u, 3441449267u, 2225005503u, 3846428419u, 2014549218u, 2290734767u, 2126684614u, 4235463487u, 3811556204u, 174739661u, 767525888u, 47684458u, 4211168099u, 889063422u, 469864411u, 767407110u, 413337343u, 1618456644u, 2814499820u, 2401124192u, 632089437u, 1234980238u, 1288585402u, 3153169944u, 2917822069u, 1843320264u, 3794359132u, 3074573530u, 258629454u, 3813357060u, 3806887248u, 1665524736u, 3324533324u, 3005091922u, 793108368u, 1529669805u, 2332660395u, 2217730223u, 2634687611u, 442806463u, 1968135266u, 454523002u, 3177866230u, 2808960136u, 4259114138u, 4103264843u, 3103714075u, 2462967542u, 1466891491u, 477973764u, 834565647u, 741089037u, 218837573u, 1710536528u, 2469088212u, 1229072375u, 2828341u, 176923431u, 985763350u, 4095477420u, 1984145538u, 1870791084u, 674956677u, 1978138947u, 1296493993u, 1818183554u, 3443333721u, 2124949983u, 2549590262u, 2700850794u, 2662736367u, 739638109u, 4061447096u, 2960078422u, 2453781158u, 929570940u, 3200328383u, 2406328791u, 1419180666u, 2152455739u, 2805741044u, 3305999074u, 3183816361u, 2303165050u, 4922104u, 63096005u, 936656347u, 3104453886u, 1088673880u, 1113407526u, 1457890086u, 453478383u, 1107686695u, 3626027824u, 1159687359u, 2248467888u, 2004578380u, 3274954621u, 1787958646u, 2628726704u, 1138419798u, 3735442315u, 692385301u, 313807213u, 2329068673u, 59375364u, 3261084359u, 2088644507u, 2471153194u, 788336435u, 4024527246u, 141504460u, 2307553888u, 1930559950u, 48975711u, 2745693338u, 230161982u, 3429230862u, 1335968626u, 609591304u, 57435073u, 4279281136u, 3152151665u, 3984484924u, 3459883943u, 397478330u, 1738762229u, 3033590066u, 3611539498u, 1363463523u, 3319364965u, 2671169141u, 3819548561u, 1691193757u, 2423834608u, 2820147055u, 1378120632u, 1240565187u, 3180720050u, 680831086u, 3309658414u, 1986166490u, 762099827u, 510883662u, 2047373648u, 3606742294u, 3894965352u, 2342078853u, 1091255717u, 776594727u, 3217317445u, 1574468485u, 3844504016u, 2819598918u, 1037401010u, 2550943503u, 3867184001u, 1687911772u, 165313836u, 1679575281u, 2418947263u, 2038774952u, 3913543652u, 3209155736u, 149905221u, 3859604717u, 713919631u, 4069810796u, 1882959164u, 1019939034u, 2379867302u, 3666323035u, 1157389013u, 2422300650u, 3366777340u, 2526452062u, 1313747885u, 1039617868u, 1620553692u, 2032976978u, 578789528u, 1592846839u, 2270630604u, 897850577u, 1603294178u, 3105664807u, 1442670138u, 1728019360u, 79313861u, 1683031101u, 1913067024u, 4070719870u, 708986470u, 2586453359u, 3993348863u, 3358251279u, 3003552537u, 750174793u, 836888956u, 4190747426u, 4251291318u, 4145164938u, 1366883260u, 1912910955u, 510192669u, 1851315039u, 3574241274u, 3220062924u, 2821142039u, 1317082195u, 2274293302u, 1839219569u, 126586168u, 3989293643u, 2680178207u, 347056948u, 799681430u, 2864517481u, 3180404853u, 213140045u, 1956305184u, 1474675286u, 3085723423u, 2841859626u, 308421914u, 3670309263u, 1765052231u, 245459238u, 113434331u, 4079521092u, 2115235526u, 2943408816u, 1055476938u, 1506442339u, 2291296392u, 3267864332u, 1282145528u, 3700108015u, 1932843667u, 2677701670u, 6041177u, 3889648557u, 1461025478u, }; // Return false only if offset is -1 and a spot check of 3 hashes all yield 0. bool Test(int offset, int len = 0) { #undef Check #undef IsAlive #define Check(x) do { \ const uint32_t actual = (x), e = expected[index++]; \ bool ok = actual == e; \ if (!ok) { \ cerr << "expected " << hex << e << " but got " << actual << endl; \ ++errors; \ } \ assert(ok); \ } while (0) #define IsAlive(x) do { alive += IsNonZero(x); } while (0) // After the following line is where the uses of "Check" and such will go. static int index = 0; if (offset == -1) { int alive = 0; IsAlive(farmhashsu::Hash32WithSeed(data, len++, SEED)); IsAlive(farmhashsu::Hash32(data, len++)); IsAlive(farmhashsu::Hash32(data, len++)); len -= 3; return alive > 0; } Check(farmhashsu::Hash32WithSeed(data + offset, len, SEED)); Check(farmhashsu::Hash32(data + offset, len)); return true; #undef Check #undef IsAlive } int RunTest() { Setup(); int i = 0; cout << "Running farmhashsuTest"; if (!Test(-1)) { cout << "... Unavailable\n"; return NoteErrors(); } // Good. The function is attempting to hash, so run the full test. int errors_prior_to_test = errors; for ( ; i < kTestSize - 1; i++) { Test(i * i, i); } for ( ; i < kDataSize; i += i / 7) { Test(0, i); } Test(0, kDataSize); cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n"); return NoteErrors(); } #else // After the following line is where the code to print hash codes will go. void Dump(int offset, int len) { cout << farmhashsu::Hash32WithSeed(data + offset, len, SEED) << "u," << endl; cout << farmhashsu::Hash32(data + offset, len) << "u," << endl; } #endif #undef SEED #undef SEED1 #undef SEED0 } // namespace farmhashsuTest #if TESTING static int farmhashsuTestResult = farmhashsuTest::RunTest(); #else int main(int argc, char** argv) { Setup(); cout << "uint32_t expected[] = {\n"; int i = 0; for ( ; i < kTestSize - 1; i++) { farmhashsuTest::Dump(i * i, i); } for ( ; i < kDataSize; i += i / 7) { farmhashsuTest::Dump(0, i); } farmhashsuTest::Dump(0, kDataSize); cout << "};\n"; } #endif #ifndef FARMHASH_SELF_TEST_GUARD #define FARMHASH_SELF_TEST_GUARD #include #include #include using std::cout; using std::cerr; using std::endl; using std::hex; static const uint64_t kSeed0 = 1234567; static const uint64_t kSeed1 = k0; static const int kDataSize = 1 << 20; static const int kTestSize = 300; #define kSeed128 Uint128(kSeed0, kSeed1) static char data[kDataSize]; static int completed_self_tests = 0; static int errors = 0; // Initialize data to pseudorandom values. void Setup() { if (completed_self_tests == 0) { uint64_t a = 9; uint64_t b = 777; for (int i = 0; i < kDataSize; i++) { a += b; b += a; a = (a ^ (a >> 41)) * k0; b = (b ^ (b >> 41)) * k0 + i; uint8_t u = b >> 37; memcpy(data + i, &u, 1); // uint8_t -> char } } } int NoteErrors() { #define NUM_SELF_TESTS 9 if (++completed_self_tests == NUM_SELF_TESTS) std::exit(errors > 0); return errors; } template inline bool IsNonZero(T x) { return x != 0; } template <> inline bool IsNonZero(uint128_t x) { return x != Uint128(0, 0); } #endif // FARMHASH_SELF_TEST_GUARD namespace farmhashteTest { uint32_t CreateSeed(int offset, int salt) { uint32_t h = static_cast(salt & 0xffffffff); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); h += static_cast(offset & 0xffffffff); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); return h; } #undef SEED #undef SEED1 #undef SEED0 #define SEED CreateSeed(offset, -1) #define SEED0 CreateSeed(offset, 0) #define SEED1 CreateSeed(offset, 1) #undef TESTING #define TESTING 1 #if TESTING uint32_t expected[] = { 1140953930u, 861465670u, 3277735313u, 2681724312u, 2598464059u, 797982799u, 890626835u, 800175912u, 2603993599u, 921001710u, 1410420968u, 2134990486u, 3283896453u, 1867689945u, 2914424215u, 2244477846u, 255297188u, 2992121793u, 1110588164u, 4186314283u, 161451183u, 3943596029u, 4019337850u, 452431531u, 283198166u, 2741341286u, 3379021470u, 2557197665u, 299850021u, 2532580744u, 452473466u, 1706958772u, 1298374911u, 3099673830u, 2199864459u, 3696623795u, 236935126u, 2976578695u, 4055299123u, 3281581178u, 1053458494u, 1882212500u, 2305012065u, 2169731866u, 3456121707u, 275903667u, 458884671u, 3033004529u, 3058973506u, 2379411653u, 1898235244u, 1402319660u, 2700149065u, 2699376854u, 147814787u, 720739346u, 2433714046u, 4222949502u, 4220361840u, 1712034059u, 3425469811u, 3690733394u, 4148372108u, 1330324210u, 594028478u, 2921867846u, 1635026870u, 192883107u, 780716741u, 1728752234u, 3280331829u, 326029180u, 3969463346u, 1436364519u, 393215742u, 3349570000u, 3824583307u, 1612122221u, 2859809759u, 3808705738u, 1379537552u, 1646032583u, 2233466664u, 1432476832u, 4023053163u, 2650381482u, 2052294713u, 3552092450u, 1628777059u, 1499109081u, 3476440786u, 3829307897u, 2960536756u, 1554038301u, 1145519619u, 3190844552u, 2902102606u, 3600725550u, 237495366u, 540224401u, 65721842u, 489963606u, 1448662590u, 397635823u, 1596489240u, 1562872448u, 1790705123u, 2128624475u, 180854224u, 2604346966u, 1435705557u, 1262831810u, 155445229u, 1672724608u, 1669465176u, 1341975128u, 663607706u, 2077310004u, 3610042449u, 1911523866u, 1043692997u, 1454396064u, 2563776023u, 294527927u, 1099072299u, 1389770549u, 703505868u, 678706990u, 2952353448u, 2026137563u, 3603803785u, 629449419u, 1933894405u, 3043213226u, 226132789u, 2489287368u, 1552847036u, 645684964u, 3828089804u, 3632594520u, 187883449u, 230403464u, 3151491850u, 3272648435u, 3729087873u, 1303930448u, 2002861219u, 165370827u, 916494250u, 1230085527u, 3103338579u, 3064290191u, 3807265751u, 3628174014u, 231181488u, 851743255u, 2295806711u, 1781190011u, 2988893883u, 1554380634u, 1142264800u, 3667013118u, 1968445277u, 315203929u, 2638023604u, 2290487377u, 732137533u, 1909203251u, 440398219u, 1891630171u, 1380301172u, 1498556724u, 4072067757u, 4165088768u, 4204318635u, 441430649u, 3931792696u, 197618179u, 956300927u, 914413116u, 3010839769u, 2837339569u, 2148126371u, 1913303225u, 3074915312u, 3117299654u, 4139181436u, 2993479124u, 3178848746u, 1357272220u, 1438494951u, 507436733u, 667183474u, 2084369203u, 3854939912u, 1413396341u, 126024219u, 146044391u, 1016656857u, 3022024459u, 3254014218u, 429095991u, 990500595u, 3056862311u, 985653208u, 1718653828u, 623071693u, 366414107u, 1771289760u, 2293458109u, 3047342438u, 2991127487u, 3120876698u, 1684583131u, 3638043310u, 1170404994u, 863214540u, 1087193030u, 199124911u, 520792961u, 3169775996u, 1577421232u, 3331828431u, 1013201099u, 1716848157u, 4033596884u, 1770708857u, 4229339322u, 1146169032u, 1434258493u, 3824360466u, 3242407770u, 1926419493u, 2649785113u, 872586426u, 762243036u, 2736953692u, 816692935u, 1571283333u, 3555213933u, 2266795890u, 3781899767u, 4290630595u, 517646945u, 3006163611u, 2180594090u, 959214578u, 558910384u, 1283799121u, 3047062993u, 3830962609u, 2391606125u, 3544509313u, 622325861u, 834785312u, 382936554u, 1421463872u, 788479970u, 1825135056u, 2725923798u, 580988377u, 2826990641u, 247825043u, 3167748333u, 812546227u, 2506885666u, 2584372201u, 1758123094u, 1891789696u, 389974094u, 345313518u, 2022370576u, 3886113119u, 3338548567u, 1083486947u, 2583576230u, 1776047957u, 1771384107u, 3604937815u, 3198590202u, 3027522813u, 4155628142u, 4232136669u, 427759438u, 4244322689u, 542201663u, 1549591985u, 2856634168u, 556609672u, 45845311u, 1175961330u, 3948351189u, 4165739882u, 4194218315u, 1634635545u, 4151937410u, 713127376u, 1467786451u, 1327394015u, 2743592929u, 2638154051u, 810082938u, 3077742128u, 1062268187u, 4084325664u, 3810665822u, 3735739145u, 2794294783u, 2335576331u, 2560479831u, 690240711u, 997658837u, 2442302747u, 3948961926u, 3958366652u, 3067277639u, 2059157774u, 1211737169u, 1516711748u, 2339636583u, 4188504038u, 59581167u, 2767897792u, 1389679610u, 2658147000u, 2643979752u, 3758739543u, 4189944477u, 1454470782u, 100876854u, 2995362413u, 118817200u, 3252925478u, 2062343506u, 2804483644u, 3088828656u, 1231633714u, 4168280671u, 2931588131u, 3284356565u, 1255909792u, 3130054947u, 4173605289u, 1407328702u, 1677744031u, 3532596884u, 3162657845u, 3887208531u, 2256541290u, 3459463480u, 3740979556u, 259034107u, 392987633u, 3233195759u, 3606709555u, 3424793077u, 315836068u, 3200749877u, 4065431359u, 760633989u, 2982018998u, 1811050648u, 234531934u, 1115203611u, 3897494162u, 1516407838u, 1603559457u, 323296368u, 2632963283u, 1778459926u, 2879836826u, 2146672889u, 3486330348u, 492621815u, 1231665285u, 2457048126u, 3438440082u, 2217471853u, 3355404249u, 3275550588u, 1052645068u, 862072556u, 4110617119u, 3745267835u, 2657392572u, 4279236653u, 1688445808u, 701920051u, 956734128u, 581695350u, 3157862788u, 2585726058u, 1192588249u, 1410111809u, 1651193125u, 3326135446u, 1073280453u, 97376972u, 2513844237u, 2187968410u, 3976859649u, 4267859263u, 3429034542u, 564493077u, 3000537321u, 479241367u, 3845637831u, 2868987960u, 51544337u, 1029173765u, 393624922u, 704325635u, 2357610553u, 1418509533u, 2007814586u, 3866658271u, 3082385053u, 735688735u, 916110004u, 3283299459u, 1051684175u, 1083796807u, 4074716319u, 813690332u, 144264390u, 1439630796u, 1508556987u, 675582689u, 3748881891u, 3195309868u, 362884708u, 1616408198u, 43233176u, 837301135u, 881504822u, 3254795114u, 1385506591u, 2799925823u, 1469874582u, 3464841997u, 497175391u, 3929484338u, 3975771289u, 1798536177u, 2926265846u, 1374242438u, 3675707838u, 4205965408u, 3153165629u, 1499475160u, 187287713u, 548490821u, 3255259608u, 4247675634u, 1940181471u, 3779953975u, 687167150u, 2319566715u, 1742785722u, 785893184u, 2296977392u, 2778575413u, 1794720651u, 48131484u, 4084891412u, 1160134629u, 3737623280u, 823113169u, 3423207646u, 3803213486u, 710625654u, 4116162021u, 3693420287u, 4167766971u, 1666602807u, 295320990u, 3513255468u, 2487440590u, 234080704u, 4004655503u, 2971762528u, 1479656873u, 4090178629u, 4044418876u, 391947536u, 1462554406u, 3909295855u, 1239580330u, 1515601363u, 2011102035u, 1442068334u, 4265993528u, 1191921695u, 2291355695u, 4257172787u, 576405853u, 314332944u, 4038839101u, 55559918u, 2378985842u, 711098718u, 2425317635u, 1644327317u, 1401013391u, 4193760037u, 2958260436u, 3167371443u, 3062418115u, 3800755475u, 3167030094u, 3489648204u, 1405430357u, 526177822u, 2602636307u, 915406019u, 4264167741u, 1484090483u, 3070944737u, 254529415u, 4017058800u, 1702710265u, 1029665228u, 2000382906u, 3185573940u, 1381258384u, 4036354071u, 2900841028u, 2670703363u, 2921748807u, 2899069938u, 4130543625u, 688472265u, 4186808827u, 1054670286u, 1132985391u, 2840525968u, 4175776103u, 338058159u, 1735964501u, 1539305024u, 3497121710u, 1568260669u, 2227290760u, 146827036u, 3977176001u, 4060134777u, 857488494u, 250055052u, 4284109679u, 2502815838u, 2592281721u, 1603444633u, 1390562014u, 1556658131u, 616327404u, 2448966429u, 3051191726u, 3891353218u, 1213304082u, 762328245u, 2239052397u, 1082330589u, 2455957292u, 201837927u, 405397452u, 3079886794u, 2583939798u, 2848283092u, 3750724631u, 883849006u, 3204198988u, 3341327098u, 1855234968u, 1982110346u, 1485529487u, 541496720u, 4117290321u, 3607433551u, 2168864636u, 133643215u, 1055817409u, 3847827123u, 2960769387u, 4046101649u, 1176127003u, 4015671361u, 4243643405u, 2849988118u, 517111221u, 1796672358u, 2045051700u, 3452457457u, 2948254999u, 2102063419u, 1556410577u, 1536380876u, 3776661467u, 3281002516u, 1735616066u, 1539151988u, 1087795162u, 3332431596u, 685631442u, 1147951686u, 95237878u, 2005032160u, 4012206915u, 4224354805u, 3204999386u, 2415262714u, 1433635018u, 116647396u, 83167836u, 2881562655u, 2729416454u, 1029284767u, 881378302u, 2159170082u, 555057366u, 1169104445u, 3963877000u, 1919171906u, 336034862u, 2017579106u, 4059340529u, 3020819343u, 865146997u, 2473524405u, 944743644u, 1694443528u, 1804513294u, 2904752429u, 617975720u, 3671562289u, 260177668u, 505662155u, 1885941445u, 2504509403u, 2260041112u, 1019936943u, 3722741628u, 1511077569u, 3100701179u, 1379422864u, 1535670711u, 773792826u, 1103819072u, 2089123665u, 1157547425u, 329152940u, 4142587430u, 484732447u, 2475035432u, 1120017626u, 412145504u, 965125959u, 324924679u, 2809286837u, 2842141483u, 4029205195u, 2974306813u, 515627448u, 3791551981u, 1097806406u, 3873078673u, 136118734u, 1872130856u, 3632422367u, 3574135531u, 4017075736u, 1699452298u, 1403506686u, 344414660u, 1189129691u, 3487080616u, 1516736273u, 1805475756u, 2562064338u, 163335594u, 2732147834u, 4077452507u, 2984955003u, 4271866024u, 3071338162u, 2347111903u, 873829983u, 1948409509u, 1923531348u, 459509140u, 771592405u, 1750124750u, 2334938333u, 213811117u, 2586632018u, 185232757u, 4032960199u, 2447383637u, 284777551u, 1654276320u, 2687561076u, 3512945009u, 308584855u, 1861027147u, 4102279334u, 3203802620u, 1692079268u, 4250142168u, 2565680167u, 1507046104u, 841195925u, 520565830u, 3674576684u, 38924274u, 3770488806u, 2414430882u, 3978473838u, 3703994407u, 69201295u, 3099963860u, 1255084262u, 690971838u, 3539996781u, 3696902571u, 3593730713u, 2363435042u, 54945052u, 1785765213u, 184911581u, 1586241476u, 1939595371u, 2534883189u, 2432427547u, 2374171993u, 2039128933u, 2955715987u, 2295501078u, 2741583197u, 1280920000u, 686818699u, 1238742497u, 3843660102u, 82177963u, 1281043691u, 1121403845u, 1697846708u, 284852964u, 278661677u, 2889101923u, 2127558730u, 713121337u, 872502474u, 511142139u, 1261140657u, 1747052377u, 2108187161u, 927011680u, 955328267u, 3821994995u, 2707230761u, 4142246789u, 4134691985u, 1958963937u, 2498463509u, 1977988705u, 1419293714u, 1636932722u, 2567532373u, 4075249328u, 240575705u, 1956681213u, 2598802768u, 2025886508u, 4104757832u, 3026358429u, 3242615202u, 4026813725u, 255108733u, 1845587644u, 3573008472u, 3615577014u, 1222733548u, 1205557630u, 917608574u, 1363253259u, 1541946015u, 3087190425u, 1138008081u, 1444019663u, 109793386u, 341851980u, 857839960u, 2515339233u, 156283211u, 1906768669u, 3886713057u, 1276595523u, 2809830736u, 460237542u, 3420452099u, 142985419u, 205970448u, 4198897105u, 1950698961u, 2069753399u, 1142216925u, 1113051162u, 1033680610u, 4278599955u, 1106466069u, 356742959u, 531521052u, 3494863964u, 225629455u, 3735275001u, 3662626864u, 1750561299u, 1012864651u, 2101846429u, 1074553219u, 668829411u, 992181339u, 3384018814u, 3330664522u, 860966321u, 1885071395u, 4233785523u, 100741310u, 451656820u, 2148187612u, 1063001151u, 360256231u, 107312677u, 3650357479u, 2390172694u, 22452685u, 237319043u, 3600462351u, 1216645846u, 2088767754u, 164402616u, 2418980170u, 926137824u, 94638678u, 1689811113u, 2751052984u, 1767810825u, 271289013u, 3896132233u, 103797041u, 1397772514u, 3441135892u, 3323383489u, 2491268371u, 1662561885u, 1612872497u, 2986430557u, 2756998822u, 207428029u, 937973965u, 2791656726u, 1949717207u, 2260498180u, 2648427775u, 2360400900u, 2080496169u, 486358863u, 1582022990u, 1263709570u, 1396468647u, 1377764574u, 363008508u, 1293502429u, 224580012u, 4252610345u, 1435134775u, 1099809675u, 533671980u, 1533438766u, 1820532305u, 2776960536u, 3374512975u, 3542220540u, 822810075u, 3716663290u, 1157398049u, 3752806924u, 4081637863u, 337070226u, 3866585976u, 359270190u, 2110942730u, 3267551635u, 644850146u, 1306761320u, 746972907u, 934259457u, 2341378668u, 2220373824u, 1242645122u, 4109252858u, 1625266099u, 1173698481u, 383517064u, 896322512u, 3377483696u, 1788337208u, 455496839u, 3194373887u, 1837689083u, 1336556841u, 1658628529u, 2911512007u, 3838343487u, 2757664765u, 1537187340u, 3712582785u, 367022558u, 3071359622u, 3926147070u, 35432879u, 3093195926u, 2561488770u, 4273132307u, 3898950547u, 2838251049u, 2103926083u, 2549435227u, 536047554u, 1858986613u, 2040551642u, 1147412575u, 1972369852u, 4166184983u, 3528794619u, 4077477194u, 3565689036u, 808048238u, 3826350461u, 1359641525u, 1197100813u, 265993036u, 1864569342u, 725164342u, 2264788336u, 1831223342u, 3329594980u, 923017956u, 490608221u, 3818634478u, 258154469u, 1441714797u, 1174785921u, 3833372385u, 3287246572u, 1677395563u, 3569218731u, 868981704u, 2163330264u, 2649450292u, 500120236u, 465161780u, 746438382u, 1145009669u, 2520062970u, 2810524030u, 1561519055u, 1479878006u, 3864969305u, 2686075657u, 4042710240u, 3224066062u, 2774151984u, 2226179547u, 1643626042u, 2328730865u, 3160666939u, 2107011431u, 96459446u, 3920328742u, 3336407558u, 829404209u, 1878067032u, 1235983679u, 4237425634u, 466519055u, 3870676863u, 934312076u, 2952135524u, 276949224u, 4100839753u, 424001484u, 1955120893u, 4015478120u, 1265237690u, 427484362u, 4246879223u, 3452969617u, 1724363362u, 1553513184u, 834830418u, 1858777639u, 3476334357u, 4144030366u, 2450047160u, 2950762705u, 4277111759u, 358032121u, 2511026735u, 167923105u, 2059208280u, 251949572u, 3065234219u, 1535473864u, 556796152u, 1513237478u, 3150857516u, 1103404394u, 198182691u, 1476438092u, 2913077464u, 207119516u, 3963810232u, 2954651680u, 1535115487u, 3051522276u, 4046477658u, 917804636u, 864395565u, 632704095u, 140762681u, 1802040304u, 990407433u, 3771506212u, 4106024923u, 1287729497u, 2198985327u, 4052924496u, 2926590471u, 3084557148u, 1472898694u, 1009870118u, 559702706u, 4265214507u, 82077489u, 3067891003u, 3295678907u, 2402308151u, 1096697687u, 464407878u, 4190838199u, 4269578403u, 3060919438u, 2899950405u, 3046872820u, 733509243u, 1583801700u, 40453902u, 3879773881u, 1993425202u, 2185339100u, 1877837196u, 3912423882u, 3293122640u, 4104318469u, 1679617763u, 3703603898u, 8759461u, 2540185277u, 1152198475u, 2038345882u, 2503579743u, 1446869792u, 2019419351u, 4051584612u, 3178289407u, 3992503830u, 2879018745u, 2719373510u, 700836153u, 1675560450u, 4121245793u, 2064715719u, 343595772u, 1996164093u, 3130433948u, 405251683u, 2804817126u, 1607133689u, 463852893u, 2864244470u, 2224044848u, 4071581802u, 2537107938u, 2246347953u, 3207234525u, 2028708916u, 2272418128u, 803575837u, 38655481u, 2170452091u, 3272166407u, 557660441u, 4019147902u, 3841480082u, 298459606u, 2600943364u, 2440657523u, 255451671u, 3424361375u, 779434428u, 3088526123u, 490671625u, 1322855877u, 3452203069u, 3057021940u, 2285701422u, 2014993457u, 2390431709u, 2002090272u, 1568745354u, 1783152480u, 823305654u, 4053862835u, 2200236540u, 3009412313u, 3184047862u, 3032187389u, 4159715581u, 2966902888u, 252986948u, 1849329144u, 3160134214u, 3420960112u, 3198900547u, 749160960u, 379139040u, 1208883495u, 1566527339u, 3006227299u, 4194096960u, 556075248u, 497404038u, 1717327230u, 1496132623u, 1775955687u, 1719108984u, 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233319221u, 3794788167u, 2017406667u, 919677938u, 4074952232u, 1683612329u, 4213676186u, 327142514u, 3032591014u, 4204155962u, 206775997u, 2283918569u, 2395147154u, 3427505379u, 2211319468u, 4153726847u, 2217060665u, 350160869u, 2493667051u, 1648200185u, 3441709766u, 1387233546u, 140980u, 1891558063u, 760080239u, 2088061981u, 1580964938u, 740563169u, 422986366u, 330624974u, 4264507722u, 150928357u, 2738323042u, 2948665536u, 918718096u, 376390582u, 3966098971u, 717653678u, 3219466255u, 3799363969u, 3424344721u, 3187805406u, 375347278u, 3490350144u, 1992212097u, 2263421398u, 3855037968u, 1928519266u, 3866327955u, 1129127000u, 1782515131u, 2746577402u, 3059200728u, 2108753646u, 2738070963u, 1336849395u, 1705302106u, 768287270u, 1343511943u, 2247006571u, 1956142255u, 1780259453u, 3475618043u, 212490675u, 622521957u, 917121602u, 1852992332u, 1267987847u, 3170016833u, 2549835613u, 3299763344u, 2864033668u, 3378768767u, 1236609378u, 4169365948u, 3738062408u, 2661022773u, 2006922227u, 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3922247304u, 1299968266u, 2520311409u, 1968824721u, 3214794876u, 1581813122u, 2668800905u, 3297613974u, 748160407u, 1145536484u, 1326769504u, 2973323521u, 3775262814u, 3218653169u, 902775872u, 3498603433u, 1372805534u, 704686363u, 3626542352u, 2271580579u, 1213925114u, 46329775u, 3009384989u, 1330254048u, 1194824134u, 514204310u, 3781981134u, 442526164u, 2835608783u, 3460471867u, 510634034u, 546406434u, 2716786748u, 2840500021u, 1669490957u, 2536189149u, 3251421224u, 1358736072u, 1089334066u, 3260749330u, 250756920u, 2974806681u, 1513718866u, 82635635u, 4041016629u, 3391765744u, 2495807367u, 3962674316u, 2822889695u, 753413337u, 2008251381u, 3123390177u, 106212622u, 490570565u, 1684884205u, 793892547u, 1927268995u, 2344148164u, 2251978818u, 437424236u, 2774023200u, 2674940754u, 3788056262u, 2597882666u, 3678660147u, 3797434193u, 3838215866u, 279687080u, 2656772270u, 2190204787u, 1997584981u, 3384401882u, 3160208845u, 3629379425u, 2668998785u, 1050036757u, 2954162084u, 917091826u, 1744374041u, 1454282570u, 845687881u, 2997173625u, 776018378u, 1137560602u, 1938378389u, 1748082354u, 2066910012u, 2677675207u, 918315064u, }; // Return false only if offset is -1 and a spot check of 3 hashes all yield 0. bool Test(int offset, int len = 0) { #undef Check #undef IsAlive #define Check(x) do { \ const uint32_t actual = (x), e = expected[index++]; \ bool ok = actual == e; \ if (!ok) { \ cerr << "expected " << hex << e << " but got " << actual << endl; \ ++errors; \ } \ assert(ok); \ } while (0) #define IsAlive(x) do { alive += IsNonZero(x); } while (0) // After the following line is where the uses of "Check" and such will go. static int index = 0; if (offset == -1) { int alive = 0; { uint64_t h = farmhashte::Hash64WithSeeds(data, len++, SEED0, SEED1); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashte::Hash64WithSeed(data, len++, SEED); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashte::Hash64(data, len++); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } len -= 3; return alive > 0; } { uint64_t h = farmhashte::Hash64WithSeeds(data + offset, len, SEED0, SEED1); Check(h >> 32); Check((h << 32) >> 32); } { uint64_t h = farmhashte::Hash64WithSeed(data + offset, len, SEED); Check(h >> 32); Check((h << 32) >> 32); } { uint64_t h = farmhashte::Hash64(data + offset, len); Check(h >> 32); Check((h << 32) >> 32); } return true; #undef Check #undef IsAlive } int RunTest() { Setup(); int i = 0; cout << "Running farmhashteTest"; if (!Test(-1)) { cout << "... Unavailable\n"; return NoteErrors(); } // Good. The function is attempting to hash, so run the full test. int errors_prior_to_test = errors; for ( ; i < kTestSize - 1; i++) { Test(i * i, i); } for ( ; i < kDataSize; i += i / 7) { Test(0, i); } Test(0, kDataSize); cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n"); return NoteErrors(); } #else // After the following line is where the code to print hash codes will go. void Dump(int offset, int len) { { uint64_t h = farmhashte::Hash64WithSeeds(data + offset, len, SEED0, SEED1); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } { uint64_t h = farmhashte::Hash64WithSeed(data + offset, len, SEED); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } { uint64_t h = farmhashte::Hash64(data + offset, len); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } } #endif #undef SEED #undef SEED1 #undef SEED0 } // namespace farmhashteTest #if TESTING static int farmhashteTestResult = farmhashteTest::RunTest(); #else int main(int argc, char** argv) { Setup(); cout << "uint32_t expected[] = {\n"; int i = 0; for ( ; i < kTestSize - 1; i++) { farmhashteTest::Dump(i * i, i); } for ( ; i < kDataSize; i += i / 7) { farmhashteTest::Dump(0, i); } farmhashteTest::Dump(0, kDataSize); cout << "};\n"; } #endif #ifndef FARMHASH_SELF_TEST_GUARD #define FARMHASH_SELF_TEST_GUARD #include #include #include using std::cout; using std::cerr; using std::endl; using std::hex; static const uint64_t kSeed0 = 1234567; static const uint64_t kSeed1 = k0; static const int kDataSize = 1 << 20; static const int kTestSize = 300; #define kSeed128 Uint128(kSeed0, kSeed1) static char data[kDataSize]; static int completed_self_tests = 0; static int errors = 0; // Initialize data to pseudorandom values. void Setup() { if (completed_self_tests == 0) { uint64_t a = 9; uint64_t b = 777; for (int i = 0; i < kDataSize; i++) { a += b; b += a; a = (a ^ (a >> 41)) * k0; b = (b ^ (b >> 41)) * k0 + i; uint8_t u = b >> 37; memcpy(data + i, &u, 1); // uint8_t -> char } } } int NoteErrors() { #define NUM_SELF_TESTS 9 if (++completed_self_tests == NUM_SELF_TESTS) std::exit(errors > 0); return errors; } template inline bool IsNonZero(T x) { return x != 0; } template <> inline bool IsNonZero(uint128_t x) { return x != Uint128(0, 0); } #endif // FARMHASH_SELF_TEST_GUARD namespace farmhashuoTest { uint32_t CreateSeed(int offset, int salt) { uint32_t h = static_cast(salt & 0xffffffff); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); h += static_cast(offset & 0xffffffff); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); return h; } #undef SEED #undef SEED1 #undef SEED0 #define SEED CreateSeed(offset, -1) #define SEED0 CreateSeed(offset, 0) #define SEED1 CreateSeed(offset, 1) #undef TESTING #define TESTING 1 #if TESTING uint32_t expected[] = { 3277735313u, 2681724312u, 2598464059u, 797982799u, 2603993599u, 921001710u, 1410420968u, 2134990486u, 2914424215u, 2244477846u, 255297188u, 2992121793u, 161451183u, 3943596029u, 4019337850u, 452431531u, 3379021470u, 2557197665u, 299850021u, 2532580744u, 1298374911u, 3099673830u, 2199864459u, 3696623795u, 4055299123u, 3281581178u, 1053458494u, 1882212500u, 3456121707u, 275903667u, 458884671u, 3033004529u, 1898235244u, 1402319660u, 2700149065u, 2699376854u, 2433714046u, 4222949502u, 4220361840u, 1712034059u, 4148372108u, 1330324210u, 594028478u, 2921867846u, 780716741u, 1728752234u, 3280331829u, 326029180u, 393215742u, 3349570000u, 3824583307u, 1612122221u, 1379537552u, 1646032583u, 2233466664u, 1432476832u, 2052294713u, 3552092450u, 1628777059u, 1499109081u, 2960536756u, 1554038301u, 1145519619u, 3190844552u, 237495366u, 540224401u, 65721842u, 489963606u, 1596489240u, 1562872448u, 1790705123u, 2128624475u, 1435705557u, 1262831810u, 155445229u, 1672724608u, 663607706u, 2077310004u, 3610042449u, 1911523866u, 2563776023u, 294527927u, 1099072299u, 1389770549u, 2952353448u, 2026137563u, 3603803785u, 629449419u, 226132789u, 2489287368u, 1552847036u, 645684964u, 187883449u, 230403464u, 3151491850u, 3272648435u, 2002861219u, 165370827u, 916494250u, 1230085527u, 3807265751u, 3628174014u, 231181488u, 851743255u, 2988893883u, 1554380634u, 1142264800u, 3667013118u, 2638023604u, 2290487377u, 732137533u, 1909203251u, 1380301172u, 1498556724u, 4072067757u, 4165088768u, 3931792696u, 197618179u, 956300927u, 914413116u, 2148126371u, 1913303225u, 3074915312u, 3117299654u, 3178848746u, 1357272220u, 1438494951u, 507436733u, 3854939912u, 1413396341u, 126024219u, 146044391u, 3254014218u, 429095991u, 165589978u, 1578546616u, 623071693u, 366414107u, 249776086u, 1207522198u, 3120876698u, 1684583131u, 46987739u, 1157614300u, 199124911u, 520792961u, 3614377032u, 586863115u, 1716848157u, 4033596884u, 1164298657u, 4140791139u, 3824360466u, 3242407770u, 3725511003u, 232064808u, 2736953692u, 816692935u, 512845449u, 3748861010u, 4290630595u, 517646945u, 22638523u, 648000590u, 1283799121u, 3047062993u, 1024246061u, 4027776454u, 834785312u, 382936554u, 411505255u, 1973395102u, 580988377u, 2826990641u, 3474970689u, 1029055034u, 2584372201u, 1758123094u, 589567754u, 325737734u, 3886113119u, 3338548567u, 257578986u, 3698087965u, 3604937815u, 3198590202u, 2305332220u, 191910725u, 4244322689u, 542201663u, 3315355162u, 2135941665u, 1175961330u, 3948351189u, 23075771u, 3252374102u, 713127376u, 1467786451u, 663013031u, 3444053918u, 3077742128u, 1062268187u, 2115441882u, 4081398201u, 2335576331u, 2560479831u, 1379288194u, 4225182569u, 3958366652u, 3067277639u, 3667516477u, 1709989541u, 4188504038u, 59581167u, 2725013602u, 3639843023u, 3758739543u, 4189944477u, 2470483982u, 877580602u, 3252925478u, 2062343506u, 3981838403u, 3762572073u, 2931588131u, 3284356565u, 1129162571u, 732225574u, 1677744031u, 3532596884u, 3232041815u, 1652884780u, 3740979556u, 259034107u, 2227121257u, 1426140634u, 315836068u, 3200749877u, 1386256573u, 24035717u, 234531934u, 1115203611u, 1598686658u, 3146815575u, 2632963283u, 1778459926u, 739944537u, 579625482u, 1231665285u, 2457048126u, 3903349120u, 389846205u, 1052645068u, 862072556u, 2834153464u, 1481069623u, 1688445808u, 701920051u, 3740748788u, 3388062747u, 1192588249u, 1410111809u, 2633463887u, 4050419847u, 2513844237u, 2187968410u, 2951683019u, 3015806005u, 3000537321u, 479241367u, 252167538u, 1231057113u, 393624922u, 704325635u, 1467197045u, 2066433573u, 3082385053u, 735688735u, 956434529u, 4028590195u, 4074716319u, 813690332u, 2124740535u, 804073145u, 3748881891u, 3195309868u, 841856605u, 2585865274u, 881504822u, 3254795114u, 1241815736u, 970796142u, 497175391u, 3929484338u, 4264993211u, 1835322201u, 3675707838u, 4205965408u, 300298607u, 3858319990u, 3255259608u, 4247675634u, 1095823272u, 1197245408u, 1742785722u, 785893184u, 1702965674u, 850401405u, 4084891412u, 1160134629u, 2555998391u, 1972759056u, 710625654u, 4116162021u, 3352753742u, 85121177u, 3513255468u, 2487440590u, 2480032715u, 2287747045u, 4090178629u, 4044418876u, 1703944517u, 486290428u, 1515601363u, 2011102035u, 573985957u, 3536053779u, 4257172787u, 576405853u, 1523550693u, 1014952061u, 711098718u, 2425317635u, 3460807169u, 3688987163u, 3167371443u, 3062418115u, 3330028292u, 1713171303u, 526177822u, 2602636307u, 1245357025u, 3346699703u, 254529415u, 4017058800u, 1829738451u, 2164236533u, 1381258384u, 4036354071u, 1749181924u, 4118435443u, 4130543625u, 688472265u, 2731071299u, 2547657502u, 4175776103u, 338058159u, 3729582129u, 4181845558u, 2227290760u, 146827036u, 2459178427u, 1025353883u, 4284109679u, 2502815838u, 825124804u, 2533140036u, 616327404u, 2448966429u, 413992636u, 2334782461u, 2239052397u, 1082330589u, 3381164715u, 199381437u, 2583939798u, 2848283092u, 2300168091u, 2156336315u, 1855234968u, 1982110346u, 2482046810u, 3158163887u, 2168864636u, 133643215u, 3904021624u, 3646514568u, 1176127003u, 4015671361u, 100525019u, 3534706803u, 2045051700u, 3452457457u, 1492267772u, 2308393828u, 3776661467u, 3281002516u, 4246334524u, 743955039u, 685631442u, 1147951686u, 2040912376u, 2911148054u, 3204999386u, 2415262714u, 313209105u, 777065474u, 2729416454u, 1029284767u, 1632078298u, 1817552554u, 3963877000u, 1919171906u, 3843219958u, 3073580867u, 865146997u, 2473524405u, 2593817617u, 3643076308u, 617975720u, 3671562289u, 121812599u, 2902367378u, 2260041112u, 1019936943u, 320945955u, 2337845588u, 1535670711u, 773792826u, 3152195900u, 4090794518u, 4142587430u, 484732447u, 419191319u, 3377973345u, 324924679u, 2809286837u, 1562277603u, 1378362199u, 3791551981u, 1097806406u, 1386297408u, 2304900033u, 3574135531u, 4017075736u, 1161238398u, 1358056883u, 3487080616u, 1516736273u, 851615042u, 2927899494u, 4077452507u, 2984955003u, 3907754394u, 3578173844u, 1948409509u, 1923531348u, 3578472493u, 3710074193u, 213811117u, 2586632018u, 1922589216u, 274958014u, 1654276320u, 2687561076u, 2569061755u, 3122046057u, 3203802620u, 1692079268u, 477806878u, 140587742u, 520565830u, 3674576684u, 91246882u, 1010215946u, 3703994407u, 69201295u, 776213083u, 3677771507u, 3696902571u, 3593730713u, 2907901228u, 3239753796u, 1586241476u, 1939595371u, 2268396558u, 3468719670u, 2955715987u, 2295501078u, 2775848696u, 1358532390u, 3843660102u, 82177963u, 4094477877u, 191727221u, 278661677u, 2889101923u, 1352525614u, 2844977667u, 1261140657u, 1747052377u, 2334120653u, 645125282u, 2707230761u, 4142246789u, 1068639717u, 2288162940u, 1419293714u, 1636932722u, 3252686293u, 318543902u, 2598802768u, 2025886508u, 2250788464u, 2711763065u, 255108733u, 1845587644u, 3719270134u, 3940707863u, 917608574u, 1363253259u, 788659330u, 673256220u, 109793386u, 341851980u, 2698465479u, 3011229884u, 3886713057u, 1276595523u, 2439962760u, 2700515456u, 205970448u, 4198897105u, 875511891u, 371715572u, 1033680610u, 4278599955u, 3120038721u, 1256300069u, 225629455u, 3735275001u, 3961944123u, 1769389163u, 1074553219u, 668829411u, 1098679359u, 2573697509u, 1885071395u, 4233785523u, 2513878053u, 2030193788u, 360256231u, 107312677u, 310517502u, 2618936366u, 3600462351u, 1216645846u, 2970730323u, 4278812598u, 94638678u, 1689811113u, 4125738800u, 3103759730u, 103797041u, 1397772514u, 1669653333u, 572567964u, 1612872497u, 2986430557u, 214990655u, 3117607990u, 1949717207u, 2260498180u, 1493936866u, 3554860960u, 1582022990u, 1263709570u, 1244120487u, 3416600761u, 224580012u, 4252610345u, 286306391u, 814956796u, 1820532305u, 2776960536u, 3082703465u, 1659265982u, 1157398049u, 3752806924u, 3508246460u, 2902716664u, 2110942730u, 3267551635u, 902835431u, 405228165u, 2341378668u, 2220373824u, 3303626294u, 1175118221u, 383517064u, 896322512u, 1697257567u, 2202820683u, 1837689083u, 1336556841u, 914535232u, 3634083711u, 1537187340u, 3712582785u, 1088201893u, 3270984620u, 3093195926u, 2561488770u, 1962968100u, 236189500u, 2549435227u, 536047554u, 422609195u, 2958815818u, 4166184983u, 3528794619u, 1042329086u, 3914176886u, 1359641525u, 1197100813u, 1269739674u, 3301844628u, 1831223342u, 3329594980u, 2433669782u, 494908536u, 1441714797u, 1174785921u, 1933050423u, 958901065u, 868981704u, 2163330264u, 3243110680u, 1443133429u, 1145009669u, 2520062970u, 3851564853u, 2664619323u, 2686075657u, 4042710240u, 2125408249u, 4165697916u, 2328730865u, 3160666939u, 588683409u, 2126275847u, 829404209u, 1878067032u, 2567792910u, 897670516u, 934312076u, 2952135524u, 504832490u, 3312698056u, 4015478120u, 1265237690u, 3376133707u, 967674402u, 1553513184u, 834830418u, 2396504772u, 3278582098u, 2950762705u, 4277111759u, 4159211303u, 1290097509u, 251949572u, 3065234219u, 1832020534u, 312136369u, 1103404394u, 198182691u, 1369599600u, 3906710870u, 2954651680u, 1535115487u, 2389327507u, 1813520230u, 632704095u, 140762681u, 3123202913u, 3336005523u, 1287729497u, 2198985327u, 2470730783u, 3821758006u, 1009870118u, 559702706u, 4274686257u, 3187546567u, 2402308151u, 1096697687u, 678932329u, 3716363135u, 2899950405u, 3046872820u, 3754655641u, 2021741414u, 1993425202u, 2185339100u, 2838253700u, 3099212100u, 1679617763u, 3703603898u, 1135665833u, 3559875668u, 2503579743u, 1446869792u, 879818611u, 3788305533u, 2879018745u, 2719373510u, 3606051203u, 2166567748u, 343595772u, 1996164093u, 1577656121u, 475248376u, 463852893u, 2864244470u, 1332049663u, 3326459767u, 3207234525u, 2028708916u, 938916154u, 3115246264u, 3272166407u, 557660441u, 1265684026u, 245033807u, 2440657523u, 255451671u, 3811885130u, 1399880284u, 1322855877u, 3452203069u, 1324994449u, 3796404024u, 2002090272u, 1568745354u, 3700047753u, 31799506u, 3009412313u, 3184047862u, 728680761u, 3848624873u, 1849329144u, 3160134214u, 1272923193u, 1474278816u, 1208883495u, 1566527339u, 4136466541u, 630825649u, 1717327230u, 1496132623u, 2449386742u, 128106940u, 2108574735u, 2584236470u, 2872246579u, 397338552u, 3088905079u, 3456882941u, 1715915153u, 2940716269u, 4168438718u, 467441309u, 872996731u, 3206901319u, 1610606159u, 2540270567u, 1301658081u, 2379410194u, 2109315753u, 3348545480u, 2041927873u, 2644077493u, 546596661u, 1017047954u, 2596792972u, 2783958892u, 2826408201u, 3531646869u, 2219352672u, 4217451852u, 1806867885u, 1903578924u, 2076465705u, 2373061493u, 1832925325u, 241574049u, 1509517110u, 3703614272u, 3429894862u, 3529565564u, 4010000614u, 2256197939u, 517086873u, 2964595704u, 3501035294u, 4079457298u, 1184683823u, 4260564140u, 2339268412u, 3871564102u, 1572637805u, 383233885u, 3351411126u, 3419328182u, 2017406667u, 919677938u, 29804156u, 46276077u, 3032591014u, 4204155962u, 1172319502u, 969309871u, 2211319468u, 4153726847u, 3094193193u, 4240669441u, 3441709766u, 1387233546u, 4048882438u, 1217896566u, 1580964938u, 740563169u, 3691850348u, 3176426539u, 2738323042u, 2948665536u, 1474029445u, 3513354882u, 3219466255u, 3799363969u, 3961796122u, 1055550923u, 1992212097u, 2263421398u, 4289759174u, 2516844140u, 1782515131u, 2746577402u, 721928440u, 3529570984u, 1705302106u, 768287270u, 3474902815u, 4000011125u, 3475618043u, 212490675u, 549130471u, 2970128275u, 3170016833u, 2549835613u, 3691104824u, 2694324482u, 4169365948u, 3738062408u, 602930397u, 2148954730u, 2636387819u, 2616619070u, 301617872u, 374657036u, 3862686086u, 431292293u, 4225245165u, 1358580562u, 2377363130u, 1415970351u, 3885060756u, 1438379807u, 2297418515u, 2954777083u, 3970368221u, 1229801760u, 1931934525u, 2287507921u, 1713471510u, 2145608111u, 2650140034u, 4081586725u, 4196863572u, 1896558394u, 4059852729u, 1813855658u, 2618400836u, 1396056469u, 2375584220u, 1037031473u, 249284003u, 2450077637u, 1383747654u, 3122687303u, 2664431743u, 3855028730u, 929335420u, 3193251135u, 137313762u, 1850894384u, 3163711272u, 3071568023u, 418541677u, 3621223039u, 340274176u, 1167681812u, 4106647531u, 4022465625u, 3069708839u, 2704165015u, 2332023349u, 641449034u, 921552000u, 1712976649u, 1876484273u, 2343049860u, 1834682077u, 4155949943u, 2061821157u, 4240649383u, 747285578u, 1626463554u, 165503115u, 359629739u, 3838102563u, 582664250u, 3878924635u, 4117237498u, 2250573853u, 804336148u, 331393443u, 4242530387u, 3346357270u, 1674051445u, 3348019777u, 1722242971u, 2509017299u, 2966108111u, 4189102509u, 3323592310u, 2631381069u, 4014551783u, 4250787412u, 3448394212u, 2664752123u, 3517585534u, 3605365141u, 1669471183u, 2210121140u, 760762191u, 249697459u, 3416920106u, 16322182u, 643179562u, 1564226597u, 2134630675u, 1011990087u, 2990167340u, 2349550842u, 1642428946u, 1214854475u, 2134299399u, 2704221532u, 2104175211u, 4283196353u, 1342880802u, 198529755u, 2004468390u, 2544665755u, 853593042u, 2090611294u, 2970943872u, 1472073141u, 850464484u, 1407609278u, 3062461105u, 366448238u, 3842907484u, 488797416u, 1432670231u, 294963924u, 3693536939u, 3390549825u, 1583234720u, 4032223840u, 2318423400u, 2965642867u, 930822729u, 1679099863u, 1728968857u, 900822335u, 702309817u, 3258354115u, 1502282913u, 2811888503u, 3924947660u, 2477280726u, 3651607391u, 3788310204u, 1300369123u, 1842333726u, 4146839064u, 2468893861u, 4091095953u, 488595746u, 1448097974u, 1159634090u, 1738834113u, 2928916831u, 4093725287u, 530850094u, 291657799u, 3548184546u, 679517009u, 399175380u, 2658337143u, 3827951761u, 3086277222u, 2067718397u, 3632376023u, 3553313841u, 119173722u, 1702434637u, 1766260771u, 895654784u, 751439914u, 4008409498u, 215917713u, 1288382231u, 2656990891u, 2581779077u, 1570750352u, 2666411616u, 3533987737u, 4289478316u, 3576119563u, 3869794273u, 963183826u, 2081410737u, 3796810515u, 1036883117u, 136547246u, 875691100u, 2592925324u, 2689342539u, 427154472u, 532957601u, 1228758574u, 1908591042u, 1464255968u, 446980910u, 2984611177u, 3508927906u, 2001585786u, 2544767379u, 1525438381u, 879448844u, 1348536411u, 4242243590u, 2861338018u, 601175800u, 764077711u, 530635011u, 3785343245u, 2378297261u, 457568934u, 76438221u, 4104954272u, 2485968477u, 2381948487u, 4226929450u, 3148473363u, 879369091u, 2180270337u, 3674375989u, 1387729170u, 568650985u, 951677556u, 4213877384u, 2721005055u, 1678669911u, 66786703u, 2273631661u, 1149351924u, 246723096u, 1895026827u, 3810605772u, 3711056516u, 2080120290u, 3638638708u, 2915672708u, 2263003308u, 1976115991u, 3448840877u, 2019238520u, 225333538u, 1555273378u, 3797521928u, 1942347150u, 3262952567u, 2817830907u, 2078619498u, 749534111u, 1178073973u, 841092198u, 3288261538u, 1696412169u, 1496966875u, 3739946319u, 2481012988u, 568983526u, 114945840u, 2841706923u, 1632780103u, 4020169654u, 2087949619u, 833416317u, 3787017905u, 2373238993u, 2575395164u, 2542976862u, 2971726178u, 2880371864u, 3642087909u, 1043714217u, 3894199764u, 2235879182u, 203853421u, 834683330u, 425935223u, 3560796393u, 3565833278u, 3414330886u, 1748785729u, 1023171602u, 580966986u, 2657385925u, 2124704694u, 233442446u, 1107045577u, 3899097693u, 1067532701u, 115667924u, 1406028344u, 2419657149u, 18613994u, 2532882091u, 3476683808u, 895961699u, 3762914298u, 1328752423u, 1844996900u, 1210281744u, 904215228u, 4055325594u, 1118521573u, 3996647489u, 3657647605u, 325254059u, 3136157065u, 3341068436u, 2287683323u, 1313073005u, 126005630u, 853746559u, 3555092974u, 2689238752u, 49515858u, 61073168u, 1010661841u, 1269521335u, 1902040126u, 3858321250u, 1400735275u, 2974699176u, 2771676666u, 545726212u, 2225229957u, 1086473152u, 3454177594u, 2088002891u, 2883475137u, 3222194252u, 4144472319u, 567988835u, 1051332394u, 3932046135u, 542648229u, 162888005u, 1669710469u, 1492500905u, 553041029u, 3817492747u, 584127807u, 4147115982u, 2993670925u, 3509733475u, 3587959456u, 2088550465u, 1745399498u, 869648362u, 1404723176u, 3947542735u, 1334333531u, 59634866u, 3239516985u, 3844250972u, 1275954779u, 2512155003u, 1685649437u, 639306006u, 2524620206u, 576786501u, 655707039u, 2864351838u, 3736264674u, 1200907897u, 2384379464u, 15823708u, 206117476u, 1193310960u, 1093099415u, 3696538026u, 4112584792u, 2069527017u, 547588820u, 4178147211u, 2827259351u, 940846775u, 1054995047u, 2976960697u, 1934305529u, 2199137382u, 1005722394u, 1875867180u, 2064356511u, 4019734130u, 3096333006u, 2069509024u, 2906358341u, 2232866485u, 1456016086u, 1422674894u, 867282151u, 1612503136u, 1739843072u, 134947567u, 2978775774u, 1284167756u, 1090844589u, 831688783u, 2079216362u, 1626991196u, 3644714163u, 3678110059u, 898470030u, 3916646913u, 3182422972u, 3630426828u, 969847973u, 3427164640u, 3463937250u, 3044785046u, 897322257u, 3443872170u, 4185408854u, 2557463241u, 4080940424u, 2048168570u, 2429169982u, 3174690447u, 2513494106u, 1213061732u, 3143736628u, 3482268149u, 1250714337u, 31648125u, 3872383625u, 1565760579u, 36665130u, 751041229u, 2257179590u, 2915361862u, 280819225u, 2907818413u, 4254297769u, 3493178615u, 3755944354u, 4043533423u, 1134196225u, 4177134659u, 127246419u, 2442615581u, 923049607u, 1004426206u, 782768297u, 2410586681u, 1430106871u, 4103323427u, 3168399477u, 3716682375u, 3616334719u, 3413209549u, 656672786u, 2876965944u, 182894450u, 456581318u, 2683752067u, 3877875910u, 3190666241u, 3240336907u, 4024807233u, 1681224377u, 1576191191u, 3599250276u, 2381111980u, 3495321877u, 3956024585u, 1611608524u, 3815677453u, 2062334396u, 1656117707u, 5457134u, 3234118251u, 470187419u, 2688566989u, 3259870297u, 660100446u, 442236198u, 2542452448u, 493137955u, 392411099u, 947967568u, 1234595917u, 4230082284u, 2762976773u, 2870085764u, 1455086530u, 2762099647u, 4011882747u, 1215981925u, 3227517889u, 3269061963u, 4037515364u, 3168911474u, 4255057396u, 2026092260u, 1736192508u, 3909727042u, 3114708966u, 1938800693u, 680793595u, 1525265867u, 2808224480u, 2122290603u, 1211197714u, 3520488321u, 3979192396u, 3540779343u, 4192918639u, 2736030448u, 1120335563u, 1698949078u, 3993310631u, 1966048551u, 2228221363u, 597941119u, 3498018399u, 393987327u, 454500547u, 1222959566u, 567151340u, 3774764786u, 1492844524u, 3308300614u, 805568076u, 868414882u, 177406999u, 1608110313u, 642061169u, 1027515771u, 3131251981u, 2851936150u, 4272755262u, 1532845092u, 709643652u, 682573592u, 1244104217u, 796769556u, 2500467040u, 3002618826u, 1112998535u, 1780193104u, 1243644607u, 3691719535u, 2958853053u, 466635014u, 2277292580u, 4082276003u, 1030800045u, 1750863246u, 379050598u, 3576413281u, 731493104u, 132259176u, 4115195437u, 1769890695u, 2715470335u, 1819263183u, 2028531518u, 2154809766u, 3672399742u, 76727603u, 4198182186u, 2304993586u, 1666387627u, 284366017u, 3359785538u, 3469807328u, 2926494787u, 3829072836u, 2493478921u, 3738499303u, 3311304980u, 932916545u, 2235559063u, 2909742396u, 1765719309u, 1456588655u, 508290328u, 1490719640u, 3356513470u, 2908490783u, 251085588u, 830410677u, 3172220325u, 3897208579u, 1940535730u, 151909546u, 2384458112u, }; // Return false only if offset is -1 and a spot check of 3 hashes all yield 0. bool Test(int offset, int len = 0) { #undef Check #undef IsAlive #define Check(x) do { \ const uint32_t actual = (x), e = expected[index++]; \ bool ok = actual == e; \ if (!ok) { \ cerr << "expected " << hex << e << " but got " << actual << endl; \ ++errors; \ } \ assert(ok); \ } while (0) #define IsAlive(x) do { alive += IsNonZero(x); } while (0) // After the following line is where the uses of "Check" and such will go. static int index = 0; if (offset == -1) { int alive = 0; { uint64_t h = farmhashuo::Hash64WithSeed(data, len++, SEED); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashuo::Hash64(data, len++); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashuo::Hash64(data, len++); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } len -= 3; return alive > 0; } { uint64_t h = farmhashuo::Hash64WithSeed(data + offset, len, SEED); Check(h >> 32); Check((h << 32) >> 32); } { uint64_t h = farmhashuo::Hash64(data + offset, len); Check(h >> 32); Check((h << 32) >> 32); } return true; #undef Check #undef IsAlive } int RunTest() { Setup(); int i = 0; cout << "Running farmhashuoTest"; if (!Test(-1)) { cout << "... Unavailable\n"; return NoteErrors(); } // Good. The function is attempting to hash, so run the full test. int errors_prior_to_test = errors; for ( ; i < kTestSize - 1; i++) { Test(i * i, i); } for ( ; i < kDataSize; i += i / 7) { Test(0, i); } Test(0, kDataSize); cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n"); return NoteErrors(); } #else // After the following line is where the code to print hash codes will go. void Dump(int offset, int len) { { uint64_t h = farmhashuo::Hash64WithSeed(data + offset, len, SEED); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } { uint64_t h = farmhashuo::Hash64(data + offset, len); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } } #endif #undef SEED #undef SEED1 #undef SEED0 } // namespace farmhashuoTest #if TESTING static int farmhashuoTestResult = farmhashuoTest::RunTest(); #else int main(int argc, char** argv) { Setup(); cout << "uint32_t expected[] = {\n"; int i = 0; for ( ; i < kTestSize - 1; i++) { farmhashuoTest::Dump(i * i, i); } for ( ; i < kDataSize; i += i / 7) { farmhashuoTest::Dump(0, i); } farmhashuoTest::Dump(0, kDataSize); cout << "};\n"; } #endif #ifndef FARMHASH_SELF_TEST_GUARD #define FARMHASH_SELF_TEST_GUARD #include #include #include using std::cout; using std::cerr; using std::endl; using std::hex; static const uint64_t kSeed0 = 1234567; static const uint64_t kSeed1 = k0; static const int kDataSize = 1 << 20; static const int kTestSize = 300; #define kSeed128 Uint128(kSeed0, kSeed1) static char data[kDataSize]; static int completed_self_tests = 0; static int errors = 0; // Initialize data to pseudorandom values. void Setup() { if (completed_self_tests == 0) { uint64_t a = 9; uint64_t b = 777; for (int i = 0; i < kDataSize; i++) { a += b; b += a; a = (a ^ (a >> 41)) * k0; b = (b ^ (b >> 41)) * k0 + i; uint8_t u = b >> 37; memcpy(data + i, &u, 1); // uint8_t -> char } } } int NoteErrors() { #define NUM_SELF_TESTS 9 if (++completed_self_tests == NUM_SELF_TESTS) std::exit(errors > 0); return errors; } template inline bool IsNonZero(T x) { return x != 0; } template <> inline bool IsNonZero(uint128_t x) { return x != Uint128(0, 0); } #endif // FARMHASH_SELF_TEST_GUARD namespace farmhashxoTest { uint32_t CreateSeed(int offset, int salt) { uint32_t h = static_cast(salt & 0xffffffff); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); h += static_cast(offset & 0xffffffff); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); h = h * c1; h ^= (h >> 17); return h; } #undef SEED #undef SEED1 #undef SEED0 #define SEED CreateSeed(offset, -1) #define SEED0 CreateSeed(offset, 0) #define SEED1 CreateSeed(offset, 1) #undef TESTING #define TESTING 1 #if TESTING uint32_t expected[] = { 1140953930u, 861465670u, 3277735313u, 2681724312u, 2598464059u, 797982799u, 890626835u, 800175912u, 2603993599u, 921001710u, 1410420968u, 2134990486u, 3283896453u, 1867689945u, 2914424215u, 2244477846u, 255297188u, 2992121793u, 1110588164u, 4186314283u, 161451183u, 3943596029u, 4019337850u, 452431531u, 283198166u, 2741341286u, 3379021470u, 2557197665u, 299850021u, 2532580744u, 452473466u, 1706958772u, 1298374911u, 3099673830u, 2199864459u, 3696623795u, 236935126u, 2976578695u, 4055299123u, 3281581178u, 1053458494u, 1882212500u, 2305012065u, 2169731866u, 3456121707u, 275903667u, 458884671u, 3033004529u, 3058973506u, 2379411653u, 1898235244u, 1402319660u, 2700149065u, 2699376854u, 147814787u, 720739346u, 2433714046u, 4222949502u, 4220361840u, 1712034059u, 3425469811u, 3690733394u, 4148372108u, 1330324210u, 594028478u, 2921867846u, 1635026870u, 192883107u, 780716741u, 1728752234u, 3280331829u, 326029180u, 3969463346u, 1436364519u, 393215742u, 3349570000u, 3824583307u, 1612122221u, 2859809759u, 3808705738u, 1379537552u, 1646032583u, 2233466664u, 1432476832u, 4023053163u, 2650381482u, 2052294713u, 3552092450u, 1628777059u, 1499109081u, 3476440786u, 3829307897u, 2960536756u, 1554038301u, 1145519619u, 3190844552u, 2902102606u, 3600725550u, 237495366u, 540224401u, 65721842u, 489963606u, 1448662590u, 397635823u, 1596489240u, 1562872448u, 1790705123u, 2128624475u, 180854224u, 2604346966u, 1435705557u, 1262831810u, 155445229u, 1672724608u, 1669465176u, 1341975128u, 663607706u, 2077310004u, 3610042449u, 1911523866u, 1043692997u, 1454396064u, 2563776023u, 294527927u, 1099072299u, 1389770549u, 703505868u, 678706990u, 2952353448u, 2026137563u, 3603803785u, 629449419u, 1933894405u, 3043213226u, 226132789u, 2489287368u, 1552847036u, 645684964u, 3828089804u, 3632594520u, 187883449u, 230403464u, 3151491850u, 3272648435u, 3729087873u, 1303930448u, 2002861219u, 165370827u, 916494250u, 1230085527u, 3103338579u, 3064290191u, 3807265751u, 3628174014u, 231181488u, 851743255u, 2295806711u, 1781190011u, 2988893883u, 1554380634u, 1142264800u, 3667013118u, 1968445277u, 315203929u, 2638023604u, 2290487377u, 732137533u, 1909203251u, 440398219u, 1891630171u, 1380301172u, 1498556724u, 4072067757u, 4165088768u, 4204318635u, 441430649u, 3931792696u, 197618179u, 956300927u, 914413116u, 3010839769u, 2837339569u, 2148126371u, 1913303225u, 3074915312u, 3117299654u, 4139181436u, 2993479124u, 3178848746u, 1357272220u, 1438494951u, 507436733u, 667183474u, 2084369203u, 3854939912u, 1413396341u, 126024219u, 146044391u, 1016656857u, 3022024459u, 3254014218u, 429095991u, 990500595u, 3056862311u, 985653208u, 1718653828u, 623071693u, 366414107u, 1771289760u, 2293458109u, 3047342438u, 2991127487u, 3120876698u, 1684583131u, 3638043310u, 1170404994u, 863214540u, 1087193030u, 199124911u, 520792961u, 3169775996u, 1577421232u, 3331828431u, 1013201099u, 1716848157u, 4033596884u, 1770708857u, 4229339322u, 1146169032u, 1434258493u, 3824360466u, 3242407770u, 1926419493u, 2649785113u, 872586426u, 762243036u, 2736953692u, 816692935u, 1571283333u, 3555213933u, 2266795890u, 3781899767u, 4290630595u, 517646945u, 3006163611u, 2180594090u, 959214578u, 558910384u, 1283799121u, 3047062993u, 3830962609u, 2391606125u, 3544509313u, 622325861u, 834785312u, 382936554u, 1421463872u, 788479970u, 1825135056u, 2725923798u, 580988377u, 2826990641u, 247825043u, 3167748333u, 812546227u, 2506885666u, 2584372201u, 1758123094u, 1891789696u, 389974094u, 345313518u, 2022370576u, 3886113119u, 3338548567u, 1083486947u, 2583576230u, 1776047957u, 1771384107u, 3604937815u, 3198590202u, 3027522813u, 4155628142u, 4232136669u, 427759438u, 4244322689u, 542201663u, 1549591985u, 2856634168u, 556609672u, 45845311u, 1175961330u, 3948351189u, 4165739882u, 4194218315u, 1634635545u, 4151937410u, 713127376u, 1467786451u, 1327394015u, 2743592929u, 2638154051u, 810082938u, 3077742128u, 1062268187u, 4084325664u, 3810665822u, 3735739145u, 2794294783u, 2335576331u, 2560479831u, 690240711u, 997658837u, 2442302747u, 3948961926u, 3958366652u, 3067277639u, 2059157774u, 1211737169u, 1516711748u, 2339636583u, 4188504038u, 59581167u, 2767897792u, 1389679610u, 2658147000u, 2643979752u, 3758739543u, 4189944477u, 1454470782u, 100876854u, 2995362413u, 118817200u, 3252925478u, 2062343506u, 2804483644u, 3088828656u, 1231633714u, 4168280671u, 2931588131u, 3284356565u, 1255909792u, 3130054947u, 4173605289u, 1407328702u, 1677744031u, 3532596884u, 3162657845u, 3887208531u, 2256541290u, 3459463480u, 3740979556u, 259034107u, 392987633u, 3233195759u, 3606709555u, 3424793077u, 315836068u, 3200749877u, 4065431359u, 760633989u, 2982018998u, 1811050648u, 234531934u, 1115203611u, 3897494162u, 1516407838u, 1603559457u, 323296368u, 2632963283u, 1778459926u, 2879836826u, 2146672889u, 3486330348u, 492621815u, 1231665285u, 2457048126u, 3438440082u, 2217471853u, 3355404249u, 3275550588u, 1052645068u, 862072556u, 4110617119u, 3745267835u, 2657392572u, 4279236653u, 1688445808u, 701920051u, 956734128u, 581695350u, 3157862788u, 2585726058u, 1192588249u, 1410111809u, 1651193125u, 3326135446u, 1073280453u, 97376972u, 2513844237u, 2187968410u, 3976859649u, 4267859263u, 3429034542u, 564493077u, 3000537321u, 479241367u, 3845637831u, 2868987960u, 51544337u, 1029173765u, 393624922u, 704325635u, 2357610553u, 1418509533u, 2007814586u, 3866658271u, 3082385053u, 735688735u, 916110004u, 3283299459u, 1051684175u, 1083796807u, 4074716319u, 813690332u, 144264390u, 1439630796u, 1508556987u, 675582689u, 3748881891u, 3195309868u, 362884708u, 1616408198u, 43233176u, 837301135u, 881504822u, 3254795114u, 1385506591u, 2799925823u, 1469874582u, 3464841997u, 497175391u, 3929484338u, 3975771289u, 1798536177u, 2926265846u, 1374242438u, 3675707838u, 4205965408u, 3153165629u, 1499475160u, 187287713u, 548490821u, 3255259608u, 4247675634u, 1940181471u, 3779953975u, 687167150u, 2319566715u, 1742785722u, 785893184u, 2296977392u, 2778575413u, 1794720651u, 48131484u, 4084891412u, 1160134629u, 3737623280u, 823113169u, 3423207646u, 3803213486u, 710625654u, 4116162021u, 3693420287u, 4167766971u, 1666602807u, 295320990u, 3513255468u, 2487440590u, 234080704u, 4004655503u, 2971762528u, 1479656873u, 4090178629u, 4044418876u, 391947536u, 1462554406u, 3909295855u, 1239580330u, 1515601363u, 2011102035u, 1442068334u, 4265993528u, 1191921695u, 2291355695u, 4257172787u, 576405853u, 314332944u, 4038839101u, 55559918u, 2378985842u, 711098718u, 2425317635u, 1644327317u, 1401013391u, 4193760037u, 2958260436u, 3167371443u, 3062418115u, 3800755475u, 3167030094u, 3489648204u, 1405430357u, 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1656117707u, 5457134u, 3234118251u, 4242065111u, 596879987u, 470187419u, 2688566989u, 3259870297u, 660100446u, 1042378442u, 2206034096u, 442236198u, 2542452448u, 493137955u, 392411099u, 3111186954u, 438250493u, 947967568u, 1234595917u, 4230082284u, 2762976773u, 421203727u, 3728409592u, 2870085764u, 1455086530u, 2762099647u, 4011882747u, 1785430706u, 3684427488u, 1215981925u, 3227517889u, 3269061963u, 4037515364u, 1749401388u, 2167451566u, 3168911474u, 4255057396u, 2026092260u, 1736192508u, 4123254745u, 2319366806u, 3909727042u, 3114708966u, 1938800693u, 680793595u, 3933041672u, 616863613u, 1525265867u, 2808224480u, 2122290603u, 1211197714u, 1186177814u, 2395325006u, 3520488321u, 3979192396u, 3540779343u, 4192918639u, 1763872074u, 3402419930u, 2736030448u, 1120335563u, 1698949078u, 3993310631u, 2947659998u, 1461045789u, 1966048551u, 2228221363u, 597941119u, 3498018399u, 1441110751u, 2229999711u, 393987327u, 454500547u, 1222959566u, 567151340u, 2496952483u, 1708770195u, 3774764786u, 1492844524u, 3308300614u, 805568076u, 4068812294u, 3404648243u, 868414882u, 177406999u, 1608110313u, 642061169u, 2093999089u, 222470301u, 1027515771u, 3131251981u, 2851936150u, 4272755262u, 2763002551u, 1881527822u, 1532845092u, 709643652u, 682573592u, 1244104217u, 440905170u, 1111321746u, 796769556u, 2500467040u, 3002618826u, 1112998535u, 1188525643u, 4212674512u, 1780193104u, 1243644607u, 3691719535u, 2958853053u, 2813437721u, 4036584207u, 466635014u, 2277292580u, 4082276003u, 1030800045u, 1899531424u, 609466946u, 1750863246u, 379050598u, 3576413281u, 731493104u, 2707384133u, 2289193651u, 132259176u, 4115195437u, 1769890695u, 2715470335u, 3348954692u, 2166575624u, 1819263183u, 2028531518u, 2154809766u, 3672399742u, 1142139448u, 88299682u, 76727603u, 4198182186u, 2304993586u, 1666387627u, 2488475423u, 3832777692u, 284366017u, 3359785538u, 3469807328u, 2926494787u, 1914195188u, 1134129972u, 3829072836u, 2493478921u, 3738499303u, 3311304980u, 726951526u, 911080963u, 932916545u, 2235559063u, 2909742396u, 1765719309u, 465269850u, 3803621553u, 1456588655u, 508290328u, 1490719640u, 3356513470u, 2262196163u, 1451774941u, 2908490783u, 251085588u, 830410677u, 3172220325u, 4039692645u, 1383603170u, 3897208579u, 1940535730u, 151909546u, 2384458112u, }; // Return false only if offset is -1 and a spot check of 3 hashes all yield 0. bool Test(int offset, int len = 0) { #undef Check #undef IsAlive #define Check(x) do { \ const uint32_t actual = (x), e = expected[index++]; \ bool ok = actual == e; \ if (!ok) { \ cerr << "expected " << hex << e << " but got " << actual << endl; \ ++errors; \ } \ assert(ok); \ } while (0) #define IsAlive(x) do { alive += IsNonZero(x); } while (0) // After the following line is where the uses of "Check" and such will go. static int index = 0; if (offset == -1) { int alive = 0; { uint64_t h = farmhashxo::Hash64WithSeeds(data, len++, SEED0, SEED1); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashxo::Hash64WithSeed(data, len++, SEED); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } { uint64_t h = farmhashxo::Hash64(data, len++); IsAlive(h >> 32); IsAlive((h << 32) >> 32); } len -= 3; return alive > 0; } { uint64_t h = farmhashxo::Hash64WithSeeds(data + offset, len, SEED0, SEED1); Check(h >> 32); Check((h << 32) >> 32); } { uint64_t h = farmhashxo::Hash64WithSeed(data + offset, len, SEED); Check(h >> 32); Check((h << 32) >> 32); } { uint64_t h = farmhashxo::Hash64(data + offset, len); Check(h >> 32); Check((h << 32) >> 32); } return true; #undef Check #undef IsAlive } int RunTest() { Setup(); int i = 0; cout << "Running farmhashxoTest"; if (!Test(-1)) { cout << "... Unavailable\n"; return NoteErrors(); } // Good. The function is attempting to hash, so run the full test. int errors_prior_to_test = errors; for ( ; i < kTestSize - 1; i++) { Test(i * i, i); } for ( ; i < kDataSize; i += i / 7) { Test(0, i); } Test(0, kDataSize); cout << (errors == errors_prior_to_test ? "... OK\n" : "... Failed\n"); return NoteErrors(); } #else // After the following line is where the code to print hash codes will go. void Dump(int offset, int len) { { uint64_t h = farmhashxo::Hash64WithSeeds(data + offset, len, SEED0, SEED1); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } { uint64_t h = farmhashxo::Hash64WithSeed(data + offset, len, SEED); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } { uint64_t h = farmhashxo::Hash64(data + offset, len); cout << (h >> 32) << "u, " << ((h << 32) >> 32) << "u," << endl; } } #endif #undef SEED #undef SEED1 #undef SEED0 } // namespace farmhashxoTest #if TESTING static int farmhashxoTestResult = farmhashxoTest::RunTest(); #else int main(int argc, char** argv) { Setup(); cout << "uint32_t expected[] = {\n"; int i = 0; for ( ; i < kTestSize - 1; i++) { farmhashxoTest::Dump(i * i, i); } for ( ; i < kDataSize; i += i / 7) { farmhashxoTest::Dump(0, i); } farmhashxoTest::Dump(0, kDataSize); cout << "};\n"; } #endif #endif // FARMHASHSELFTEST