Package org.elasticsearch.geometry.utils
Class BitUtil
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- org.elasticsearch.geometry.utils.BitUtil
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public class BitUtil extends java.lang.Object
Utilities for common Bit twiddling methods. Borrowed heavily from Lucene (org.apache.lucene.util.BitUtil).
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Constructor Summary
Constructors Constructor Description BitUtil()
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Method Summary
Modifier and Type Method Description static long
deinterleave(long b)
Extract just the even-bits value as a long from the bit-interleaved valuestatic long
flipFlop(long b)
flip flops odd with even bitsstatic long
interleave(int even, int odd)
Interleaves the first 32 bits of each long value Adapted from: http://graphics.stanford.edu/~seander/bithacks.html#InterleaveBMN
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Method Detail
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interleave
public static long interleave(int even, int odd)
Interleaves the first 32 bits of each long value Adapted from: http://graphics.stanford.edu/~seander/bithacks.html#InterleaveBMN
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deinterleave
public static long deinterleave(long b)
Extract just the even-bits value as a long from the bit-interleaved value
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flipFlop
public static final long flipFlop(long b)
flip flops odd with even bits
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