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// MurmurHashNeutral2, by Austin Appleby. Released to the public domain. See
// <http://murmurhash.googlepages.com>.
#include "murmurhashneutral2.h"
unsigned int
murmurhashneutral2(const void *key, int len, unsigned int seed)
{
const unsigned int m = 0x5bd1e995;
const int r = 24;
unsigned int h = seed ^ len;
const unsigned char *data = (const unsigned char *)key;
while (len >= 4) {
unsigned int k = data[0];
k |= ((unsigned int) data[1]) << 8;
k |= ((unsigned int) data[2]) << 16;
k |= ((unsigned int) data[3]) << 24;
k *= m;
k ^= k >> r;
k *= m;
h *= m;
h ^= k;
data += 4;
len -= 4;
}
switch (len)
{
case 3: h ^= ((unsigned int) data[2]) << 16;
case 2: h ^= ((unsigned int) data[1]) << 8;
case 1: h ^= ((unsigned int) data[0]);
h *= m;
};
h ^= h >> 13;
h *= m;
h ^= h >> 15;
return h;
}
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