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Now using a simple 2's complement operation to mask from a 64bit integer to a 32bit #1

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merged 1 commit into from May 14, 2012
Merged

Now using a simple 2's complement operation to mask from a 64bit integer to a 32bit #1

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5 changes: 5 additions & 0 deletions Services/PageRank.php
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Expand Up @@ -239,6 +239,11 @@ public function getHash ()
$result ^= ord($seed{$i%strlen($seed)}) ^ ord($this->q{$i});
$result = (($result >> 23) & 0x1ff) | $result << 9;
}
// Check we're not already on a 32-bitsize
if (PHP_INT_MAX != 2147483647) {
// Mask and re-complement to 32-bit
$result = -(~($result & 0xFFFFFFFF) + 1);
}
return $result;
}
/**
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