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* Remove ext files

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Matthew Honnibal 2014-07-25 16:48:26 +01:00
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commit e5da104bc7
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523
ext/MurmurHash2.cpp
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//-----------------------------------------------------------------------------
// MurmurHash2 was written by Austin Appleby, and is placed in the public
// domain. The author hereby disclaims copyright to this source code.
// Note - This code makes a few assumptions about how your machine behaves -
// 1. We can read a 4-byte value from any address without crashing
// 2. sizeof(int) == 4
// And it has a few limitations -
// 1. It will not work incrementally.
// 2. It will not produce the same results on little-endian and big-endian
// machines.
#include "MurmurHash2.h"
//-----------------------------------------------------------------------------
// Platform-specific functions and macros
// Microsoft Visual Studio
#if defined(_MSC_VER)
#define BIG_CONSTANT(x) (x)
// Other compilers
#else // defined(_MSC_VER)
#define BIG_CONSTANT(x) (x##LLU)
#endif // !defined(_MSC_VER)
//-----------------------------------------------------------------------------
uint32_t MurmurHash2 ( const void * key, int len, uint32_t seed )
{
// 'm' and 'r' are mixing constants generated offline.
// They're not really 'magic', they just happen to work well.
const uint32_t m = 0x5bd1e995;
const int r = 24;
// Initialize the hash to a 'random' value
uint32_t h = seed ^ len;
// Mix 4 bytes at a time into the hash
const unsigned char * data = (const unsigned char *)key;
while(len >= 4)
{
uint32_t k = *(uint32_t*)data;
k *= m;
k ^= k >> r;
k *= m;
h *= m;
h ^= k;
data += 4;
len -= 4;
}
// Handle the last few bytes of the input array
switch(len)
{
case 3: h ^= data[2] << 16;
case 2: h ^= data[1] << 8;
case 1: h ^= data[0];
h *= m;
};
// Do a few final mixes of the hash to ensure the last few
// bytes are well-incorporated.
h ^= h >> 13;
h *= m;
h ^= h >> 15;
return h;
}
//-----------------------------------------------------------------------------
// MurmurHash2, 64-bit versions, by Austin Appleby
// The same caveats as 32-bit MurmurHash2 apply here - beware of alignment
// and endian-ness issues if used across multiple platforms.
// 64-bit hash for 64-bit platforms
uint64_t MurmurHash64A ( const void * key, int len, uint64_t seed )
{
const uint64_t m = BIG_CONSTANT(0xc6a4a7935bd1e995);
const int r = 47;
uint64_t h = seed ^ (len * m);
const uint64_t * data = (const uint64_t *)key;
const uint64_t * end = data + (len/8);
while(data != end)
{
uint64_t k = *data++;
k *= m;
k ^= k >> r;
k *= m;
h ^= k;
h *= m;
}
const unsigned char * data2 = (const unsigned char*)data;
switch(len & 7)
{
case 7: h ^= uint64_t(data2[6]) << 48;
case 6: h ^= uint64_t(data2[5]) << 40;
case 5: h ^= uint64_t(data2[4]) << 32;
case 4: h ^= uint64_t(data2[3]) << 24;
case 3: h ^= uint64_t(data2[2]) << 16;
case 2: h ^= uint64_t(data2[1]) << 8;
case 1: h ^= uint64_t(data2[0]);
h *= m;
};
h ^= h >> r;
h *= m;
h ^= h >> r;
return h;
}
// 64-bit hash for 32-bit platforms
uint64_t MurmurHash64B ( const void * key, int len, uint64_t seed )
{
const uint32_t m = 0x5bd1e995;
const int r = 24;
uint32_t h1 = uint32_t(seed) ^ len;
uint32_t h2 = uint32_t(seed >> 32);
const uint32_t * data = (const uint32_t *)key;
while(len >= 8)
{
uint32_t k1 = *data++;
k1 *= m; k1 ^= k1 >> r; k1 *= m;
h1 *= m; h1 ^= k1;
len -= 4;
uint32_t k2 = *data++;
k2 *= m; k2 ^= k2 >> r; k2 *= m;
h2 *= m; h2 ^= k2;
len -= 4;
}
if(len >= 4)
{
uint32_t k1 = *data++;
k1 *= m; k1 ^= k1 >> r; k1 *= m;
h1 *= m; h1 ^= k1;
len -= 4;
}
switch(len)
{
case 3: h2 ^= ((unsigned char*)data)[2] << 16;
case 2: h2 ^= ((unsigned char*)data)[1] << 8;
case 1: h2 ^= ((unsigned char*)data)[0];
h2 *= m;
};
h1 ^= h2 >> 18; h1 *= m;
h2 ^= h1 >> 22; h2 *= m;
h1 ^= h2 >> 17; h1 *= m;
h2 ^= h1 >> 19; h2 *= m;
uint64_t h = h1;
h = (h << 32) | h2;
return h;
}
//-----------------------------------------------------------------------------
// MurmurHash2A, by Austin Appleby
// This is a variant of MurmurHash2 modified to use the Merkle-Damgard
// construction. Bulk speed should be identical to Murmur2, small-key speed
// will be 10%-20% slower due to the added overhead at the end of the hash.
// This variant fixes a minor issue where null keys were more likely to
// collide with each other than expected, and also makes the function
// more amenable to incremental implementations.
#define mmix(h,k) { k *= m; k ^= k >> r; k *= m; h *= m; h ^= k; }
uint32_t MurmurHash2A ( const void * key, int len, uint32_t seed )
{
const uint32_t m = 0x5bd1e995;
const int r = 24;
uint32_t l = len;
const unsigned char * data = (const unsigned char *)key;
uint32_t h = seed;
while(len >= 4)
{
uint32_t k = *(uint32_t*)data;
mmix(h,k);
data += 4;
len -= 4;
}
uint32_t t = 0;
switch(len)
{
case 3: t ^= data[2] << 16;
case 2: t ^= data[1] << 8;
case 1: t ^= data[0];
};
mmix(h,t);
mmix(h,l);
h ^= h >> 13;
h *= m;
h ^= h >> 15;
return h;
}
//-----------------------------------------------------------------------------
// CMurmurHash2A, by Austin Appleby
// This is a sample implementation of MurmurHash2A designed to work
// incrementally.
// Usage -
// CMurmurHash2A hasher
// hasher.Begin(seed);
// hasher.Add(data1,size1);
// hasher.Add(data2,size2);
// ...
// hasher.Add(dataN,sizeN);
// uint32_t hash = hasher.End()
class CMurmurHash2A
{
public:
void Begin ( uint32_t seed = 0 )
{
m_hash = seed;
m_tail = 0;
m_count = 0;
m_size = 0;
}
void Add ( const unsigned char * data, int len )
{
m_size += len;
MixTail(data,len);
while(len >= 4)
{
uint32_t k = *(uint32_t*)data;
mmix(m_hash,k);
data += 4;
len -= 4;
}
MixTail(data,len);
}
uint32_t End ( void )
{
mmix(m_hash,m_tail);
mmix(m_hash,m_size);
m_hash ^= m_hash >> 13;
m_hash *= m;
m_hash ^= m_hash >> 15;
return m_hash;
}
private:
static const uint32_t m = 0x5bd1e995;
static const int r = 24;
void MixTail ( const unsigned char * & data, int & len )
{
while( len && ((len<4) || m_count) )
{
m_tail |= (*data++) << (m_count * 8);
m_count++;
len--;
if(m_count == 4)
{
mmix(m_hash,m_tail);
m_tail = 0;
m_count = 0;
}
}
}
uint32_t m_hash;
uint32_t m_tail;
uint32_t m_count;
uint32_t m_size;
};
//-----------------------------------------------------------------------------
// MurmurHashNeutral2, by Austin Appleby
// Same as MurmurHash2, but endian- and alignment-neutral.
// Half the speed though, alas.
uint32_t MurmurHashNeutral2 ( const void * key, int len, uint32_t seed )
{
const uint32_t m = 0x5bd1e995;
const int r = 24;
uint32_t h = seed ^ len;
const unsigned char * data = (const unsigned char *)key;
while(len >= 4)
{
uint32_t k;
k = data[0];
k |= data[1] << 8;
k |= data[2] << 16;
k |= data[3] << 24;
k *= m;
k ^= k >> r;
k *= m;
h *= m;
h ^= k;
data += 4;
len -= 4;
}
switch(len)
{
case 3: h ^= data[2] << 16;
case 2: h ^= data[1] << 8;
case 1: h ^= data[0];
h *= m;
};
h ^= h >> 13;
h *= m;
h ^= h >> 15;
return h;
}
//-----------------------------------------------------------------------------
// MurmurHashAligned2, by Austin Appleby
// Same algorithm as MurmurHash2, but only does aligned reads - should be safer
// on certain platforms.
// Performance will be lower than MurmurHash2
#define MIX(h,k,m) { k *= m; k ^= k >> r; k *= m; h *= m; h ^= k; }
uint32_t MurmurHashAligned2 ( const void * key, int len, uint32_t seed )
{
const uint32_t m = 0x5bd1e995;
const int r = 24;
const unsigned char * data = (const unsigned char *)key;
uint32_t h = seed ^ len;
int align = (uint64_t)data & 3;
if(align && (len >= 4))
{
// Pre-load the temp registers
uint32_t t = 0, d = 0;
switch(align)
{
case 1: t |= data[2] << 16;
case 2: t |= data[1] << 8;
case 3: t |= data[0];
}
t <<= (8 * align);
data += 4-align;
len -= 4-align;
int sl = 8 * (4-align);
int sr = 8 * align;
// Mix
while(len >= 4)
{
d = *(uint32_t *)data;
t = (t >> sr) | (d << sl);
uint32_t k = t;
MIX(h,k,m);
t = d;
data += 4;
len -= 4;
}
// Handle leftover data in temp registers
d = 0;
if(len >= align)
{
switch(align)
{
case 3: d |= data[2] << 16;
case 2: d |= data[1] << 8;
case 1: d |= data[0];
}
uint32_t k = (t >> sr) | (d << sl);
MIX(h,k,m);
data += align;
len -= align;
//----------
// Handle tail bytes
switch(len)
{
case 3: h ^= data[2] << 16;
case 2: h ^= data[1] << 8;
case 1: h ^= data[0];
h *= m;
};
}
else
{
switch(len)
{
case 3: d |= data[2] << 16;
case 2: d |= data[1] << 8;
case 1: d |= data[0];
case 0: h ^= (t >> sr) | (d << sl);
h *= m;
}
}
h ^= h >> 13;
h *= m;
h ^= h >> 15;
return h;
}
else
{
while(len >= 4)
{
uint32_t k = *(uint32_t *)data;
MIX(h,k,m);
data += 4;
len -= 4;
}
//----------
// Handle tail bytes
switch(len)
{
case 3: h ^= data[2] << 16;
case 2: h ^= data[1] << 8;
case 1: h ^= data[0];
h *= m;
};
h ^= h >> 13;
h *= m;
h ^= h >> 15;
return h;
}
}
//-----------------------------------------------------------------------------

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ext/MurmurHash2.h
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//-----------------------------------------------------------------------------
// MurmurHash2 was written by Austin Appleby, and is placed in the public
// domain. The author hereby disclaims copyright to this source code.
#ifndef _MURMURHASH2_H_
#define _MURMURHASH2_H_
//-----------------------------------------------------------------------------
// Platform-specific functions and macros
// Microsoft Visual Studio
#if defined(_MSC_VER)
typedef unsigned char uint8_t;
typedef unsigned long uint32_t;
typedef unsigned __int64 uint64_t;
// Other compilers
#else // defined(_MSC_VER)
#include <stdint.h>
#endif // !defined(_MSC_VER)
//-----------------------------------------------------------------------------
uint32_t MurmurHash2 ( const void * key, int len, uint32_t seed );
uint64_t MurmurHash64A ( const void * key, int len, uint64_t seed );
uint64_t MurmurHash64B ( const void * key, int len, uint64_t seed );
uint32_t MurmurHash2A ( const void * key, int len, uint32_t seed );
uint32_t MurmurHashNeutral2 ( const void * key, int len, uint32_t seed );
uint32_t MurmurHashAligned2 ( const void * key, int len, uint32_t seed );
//-----------------------------------------------------------------------------
#endif // _MURMURHASH2_H_

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ext/MurmurHash3.cpp
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//-----------------------------------------------------------------------------
// MurmurHash3 was written by Austin Appleby, and is placed in the public
// domain. The author hereby disclaims copyright to this source code.
// Note - The x86 and x64 versions do _not_ produce the same results, as the
// algorithms are optimized for their respective platforms. You can still
// compile and run any of them on any platform, but your performance with the
// non-native version will be less than optimal.
#include "MurmurHash3.h"
//-----------------------------------------------------------------------------
// Platform-specific functions and macros
// Microsoft Visual Studio
#if defined(_MSC_VER)
#define FORCE_INLINE __forceinline
#include <stdlib.h>
#define ROTL32(x,y) _rotl(x,y)
#define ROTL64(x,y) _rotl64(x,y)
#define BIG_CONSTANT(x) (x)
// Other compilers
#else // defined(_MSC_VER)
#if defined(GNUC) && ((GNUC > 4) || (GNUC == 4 && GNUC_MINOR >= 4))
/* gcc version >= 4.4 4.1 = RHEL 5, 4.4 = RHEL 6.
* Don't inline for RHEL 5 gcc which is 4.1 */
#define FORCE_INLINE attribute((always_inline))
#else
#define FORCE_INLINE
#endif
inline uint32_t rotl32 ( uint32_t x, int8_t r )
{
return (x << r) | (x >> (32 - r));
}
inline uint64_t rotl64 ( uint64_t x, int8_t r )
{
return (x << r) | (x >> (64 - r));
}
#define ROTL32(x,y) rotl32(x,y)
#define ROTL64(x,y) rotl64(x,y)
#define BIG_CONSTANT(x) (x##LLU)
#endif // !defined(_MSC_VER)
//-----------------------------------------------------------------------------
// Block read - if your platform needs to do endian-swapping or can only
// handle aligned reads, do the conversion here
FORCE_INLINE uint32_t getblock ( const uint32_t * p, int i )
{
return p[i];
}
FORCE_INLINE uint64_t getblock ( const uint64_t * p, int i )
{
return p[i];
}
//-----------------------------------------------------------------------------
// Finalization mix - force all bits of a hash block to avalanche
FORCE_INLINE uint32_t fmix ( uint32_t h )
{
h ^= h >> 16;
h *= 0x85ebca6b;
h ^= h >> 13;
h *= 0xc2b2ae35;
h ^= h >> 16;
return h;
}
//----------
FORCE_INLINE uint64_t fmix ( uint64_t k )
{
k ^= k >> 33;
k *= BIG_CONSTANT(0xff51afd7ed558ccd);
k ^= k >> 33;
k *= BIG_CONSTANT(0xc4ceb9fe1a85ec53);
k ^= k >> 33;
return k;
}
//-----------------------------------------------------------------------------
void MurmurHash3_x86_32 ( const void * key, int len,
uint32_t seed, void * out )
{
const uint8_t * data = (const uint8_t*)key;
const int nblocks = len / 4;
uint32_t h1 = seed;
uint32_t c1 = 0xcc9e2d51;
uint32_t c2 = 0x1b873593;
//----------
// body
const uint32_t * blocks = (const uint32_t *)(data + nblocks*4);
for(int i = -nblocks; i; i++)
{
uint32_t k1 = getblock(blocks,i);
k1 *= c1;
k1 = ROTL32(k1,15);
k1 *= c2;
h1 ^= k1;
h1 = ROTL32(h1,13);
h1 = h1*5+0xe6546b64;
}
//----------
// tail
const uint8_t * tail = (const uint8_t*)(data + nblocks*4);
uint32_t k1 = 0;
switch(len & 3)
{
case 3: k1 ^= tail[2] << 16;
case 2: k1 ^= tail[1] << 8;
case 1: k1 ^= tail[0];
k1 *= c1; k1 = ROTL32(k1,15); k1 *= c2; h1 ^= k1;
};
//----------
// finalization
h1 ^= len;
h1 = fmix(h1);
*(uint32_t*)out = h1;
}
//-----------------------------------------------------------------------------
void MurmurHash3_x86_128 ( const void * key, const int len,
uint32_t seed, void * out )
{
const uint8_t * data = (const uint8_t*)key;
const int nblocks = len / 16;
uint32_t h1 = seed;
uint32_t h2 = seed;
uint32_t h3 = seed;
uint32_t h4 = seed;
uint32_t c1 = 0x239b961b;
uint32_t c2 = 0xab0e9789;
uint32_t c3 = 0x38b34ae5;
uint32_t c4 = 0xa1e38b93;
//----------
// body
const uint32_t * blocks = (const uint32_t *)(data + nblocks*16);
for(int i = -nblocks; i; i++)
{
uint32_t k1 = getblock(blocks,i*4+0);
uint32_t k2 = getblock(blocks,i*4+1);
uint32_t k3 = getblock(blocks,i*4+2);
uint32_t k4 = getblock(blocks,i*4+3);
k1 *= c1; k1 = ROTL32(k1,15); k1 *= c2; h1 ^= k1;
h1 = ROTL32(h1,19); h1 += h2; h1 = h1*5+0x561ccd1b;
k2 *= c2; k2 = ROTL32(k2,16); k2 *= c3; h2 ^= k2;
h2 = ROTL32(h2,17); h2 += h3; h2 = h2*5+0x0bcaa747;
k3 *= c3; k3 = ROTL32(k3,17); k3 *= c4; h3 ^= k3;
h3 = ROTL32(h3,15); h3 += h4; h3 = h3*5+0x96cd1c35;
k4 *= c4; k4 = ROTL32(k4,18); k4 *= c1; h4 ^= k4;
h4 = ROTL32(h4,13); h4 += h1; h4 = h4*5+0x32ac3b17;
}
//----------
// tail
const uint8_t * tail = (const uint8_t*)(data + nblocks*16);
uint32_t k1 = 0;
uint32_t k2 = 0;
uint32_t k3 = 0;
uint32_t k4 = 0;
switch(len & 15)
{
case 15: k4 ^= tail[14] << 16;
case 14: k4 ^= tail[13] << 8;
case 13: k4 ^= tail[12] << 0;
k4 *= c4; k4 = ROTL32(k4,18); k4 *= c1; h4 ^= k4;
case 12: k3 ^= tail[11] << 24;
case 11: k3 ^= tail[10] << 16;
case 10: k3 ^= tail[ 9] << 8;
case 9: k3 ^= tail[ 8] << 0;
k3 *= c3; k3 = ROTL32(k3,17); k3 *= c4; h3 ^= k3;
case 8: k2 ^= tail[ 7] << 24;
case 7: k2 ^= tail[ 6] << 16;
case 6: k2 ^= tail[ 5] << 8;
case 5: k2 ^= tail[ 4] << 0;
k2 *= c2; k2 = ROTL32(k2,16); k2 *= c3; h2 ^= k2;
case 4: k1 ^= tail[ 3] << 24;
case 3: k1 ^= tail[ 2] << 16;
case 2: k1 ^= tail[ 1] << 8;
case 1: k1 ^= tail[ 0] << 0;
k1 *= c1; k1 = ROTL32(k1,15); k1 *= c2; h1 ^= k1;
};
//----------
// finalization
h1 ^= len; h2 ^= len; h3 ^= len; h4 ^= len;
h1 += h2; h1 += h3; h1 += h4;
h2 += h1; h3 += h1; h4 += h1;
h1 = fmix(h1);
h2 = fmix(h2);
h3 = fmix(h3);
h4 = fmix(h4);
h1 += h2; h1 += h3; h1 += h4;
h2 += h1; h3 += h1; h4 += h1;
((uint32_t*)out)[0] = h1;
((uint32_t*)out)[1] = h2;
((uint32_t*)out)[2] = h3;
((uint32_t*)out)[3] = h4;
}
//-----------------------------------------------------------------------------
void MurmurHash3_x64_128 ( const void * key, const int len,
const uint32_t seed, void * out )
{
const uint8_t * data = (const uint8_t*)key;
const int nblocks = len / 16;
uint64_t h1 = seed;
uint64_t h2 = seed;
uint64_t c1 = BIG_CONSTANT(0x87c37b91114253d5);
uint64_t c2 = BIG_CONSTANT(0x4cf5ad432745937f);
//----------
// body
const uint64_t * blocks = (const uint64_t *)(data);
for(int i = 0; i < nblocks; i++)
{
uint64_t k1 = getblock(blocks,i*2+0);
uint64_t k2 = getblock(blocks,i*2+1);
k1 *= c1; k1 = ROTL64(k1,31); k1 *= c2; h1 ^= k1;
h1 = ROTL64(h1,27); h1 += h2; h1 = h1*5+0x52dce729;
k2 *= c2; k2 = ROTL64(k2,33); k2 *= c1; h2 ^= k2;
h2 = ROTL64(h2,31); h2 += h1; h2 = h2*5+0x38495ab5;
}
//----------
// tail
const uint8_t * tail = (const uint8_t*)(data + nblocks*16);
uint64_t k1 = 0;
uint64_t k2 = 0;
switch(len & 15)
{
case 15: k2 ^= uint64_t(tail[14]) << 48;
case 14: k2 ^= uint64_t(tail[13]) << 40;
case 13: k2 ^= uint64_t(tail[12]) << 32;
case 12: k2 ^= uint64_t(tail[11]) << 24;
case 11: k2 ^= uint64_t(tail[10]) << 16;
case 10: k2 ^= uint64_t(tail[ 9]) << 8;
case 9: k2 ^= uint64_t(tail[ 8]) << 0;
k2 *= c2; k2 = ROTL64(k2,33); k2 *= c1; h2 ^= k2;
case 8: k1 ^= uint64_t(tail[ 7]) << 56;
case 7: k1 ^= uint64_t(tail[ 6]) << 48;
case 6: k1 ^= uint64_t(tail[ 5]) << 40;
case 5: k1 ^= uint64_t(tail[ 4]) << 32;
case 4: k1 ^= uint64_t(tail[ 3]) << 24;
case 3: k1 ^= uint64_t(tail[ 2]) << 16;
case 2: k1 ^= uint64_t(tail[ 1]) << 8;
case 1: k1 ^= uint64_t(tail[ 0]) << 0;
k1 *= c1; k1 = ROTL64(k1,31); k1 *= c2; h1 ^= k1;
};
//----------
// finalization
h1 ^= len; h2 ^= len;
h1 += h2;
h2 += h1;
h1 = fmix(h1);
h2 = fmix(h2);
h1 += h2;
h2 += h1;
((uint64_t*)out)[0] = h1;
((uint64_t*)out)[1] = h2;
}
//-----------------------------------------------------------------------------

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//-----------------------------------------------------------------------------
// MurmurHash3 was written by Austin Appleby, and is placed in the public
// domain. The author hereby disclaims copyright to this source code.
#ifndef _MURMURHASH3_H_
#define _MURMURHASH3_H_
//-----------------------------------------------------------------------------
// Platform-specific functions and macros
// Microsoft Visual Studio
#if defined(_MSC_VER)
typedef unsigned char uint8_t;
typedef unsigned long uint32_t;
typedef unsigned __int64 uint64_t;
// Other compilers
#else // defined(_MSC_VER)
#include <stdint.h>
#endif // !defined(_MSC_VER)
//-----------------------------------------------------------------------------
#ifdef __cplusplus
extern "C" {
#endif
void MurmurHash3_x86_32 ( const void * key, int len, uint32_t seed, void * out );
void MurmurHash3_x86_128 ( const void * key, int len, uint32_t seed, void * out );
void MurmurHash3_x64_128 ( const void * key, int len, uint32_t seed, void * out );
#ifdef __cplusplus
}
#endif
//-----------------------------------------------------------------------------
#endif // _MURMURHASH3_H_

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ext/__init__.py
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ext/murmurhash.pxd
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# cython profile=True
from libc.stdint cimport uint64_t, int64_t
cdef extern from "../include/MurmurHash3.h":
void MurmurHash3_x86_32(void * key, uint64_t len, uint64_t seed, void* out) nogil
void MurmurHash3_x86_128(void * key, uint64_t len, uint64_t seed, void* out) nogil
cdef extern from "../include/MurmurHash2.h":
uint64_t MurmurHash64A(void * key, uint64_t len, int64_t seed) nogil
uint64_t MurmurHash64B(void * key, uint64_t len, int64_t seed) nogil

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ext/murmurhash.pyx
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# cython: profile=True

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ext/sparsehash.pxd
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from libcpp.utility cimport pair
from libcpp.vector cimport vector
from libc.stdint cimport uint64_t, int64_t
cdef extern from "sparsehash/dense_hash_map" namespace "google":
cdef cppclass dense_hash_map[K, D]:
K& key_type
D& data_type
pair[K, D]& value_type
uint64_t size_type
cppclass iterator:
pair[K, D]& operator*() nogil
iterator operator++() nogil
iterator operator--() nogil
bint operator==(iterator) nogil
bint operator!=(iterator) nogil
iterator begin()
iterator end()
uint64_t size()
uint64_t max_size()
bint empty()
uint64_t bucket_count()
uint64_t bucket_size(uint64_t i)
uint64_t bucket(K& key)
double max_load_factor()
void max_load_vactor(double new_grow)
double min_load_factor()
double min_load_factor(double new_grow)
void set_resizing_parameters(double shrink, double grow)
void resize(uint64_t n)
void rehash(uint64_t n)
dense_hash_map()
dense_hash_map(uint64_t n)
void swap(dense_hash_map&)
pair[iterator, bint] insert(pair[K, D]) nogil
void set_empty_key(K&)
void set_deleted_key(K& key)
void clear_deleted_key()
void erase(iterator pos)
uint64_t erase(K& k)
void erase(iterator first, iterator last)
void clear()
void clear_no_resize()
pair[iterator, iterator] equal_range(K& k)
D& operator[](K&) nogil

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ext/sparsehash.pyx
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# cython profile=True