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java.lang.Objectit.unimi.dsi.sux4j.bits.Select9
public class Select9
A select9
implementation.
select9
is based on an underlying rank9
instance
and uses 25%-37.5% additional space (beside the 25% due to rank9
), depending on density. It guarantees practical
constant time evaluation.
Constructor Summary | |
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Select9(Rank9 rank9)
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Method Summary | |
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BitVector |
bitVector()
Returns the bit vector indexed by this structure. |
long |
numBits()
Returns the overall number of bits allocated by this structure. |
long |
select(long rank)
Returns the position of the bit of given rank. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public Select9(Rank9 rank9)
Method Detail |
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public long select(long rank)
Select
select
in interface Select
rank
- a rank.
public long numBits()
Select
numBits
in interface Select
public BitVector bitVector()
Select
Note that you are not supposed to modify the returned vector.
bitVector
in interface Select
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