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• BitUtil

C# Class Lucene.Net.Util.BitUtil

Exibir arquivo Open project: synhershko/lucene.net Class Usage Examples

Public Properties

Property	Type	Description
ntzTable	byte[]

Public Methods

Method	Description
IsPowerOfTwo ( int v ) : bool	returns true if v is a power of two or zero
IsPowerOfTwo ( long v ) : bool	returns true if v is a power of two or zero
NextHighestPowerOfTwo ( int v ) : int	returns the next highest power of two, or the current value if it's already a power of two or zero
NextHighestPowerOfTwo ( long v ) : long	returns the next highest power of two, or the current value if it's already a power of two or zero
Ntz ( int val ) : int	Returns number of trailing zeros in a 32 bit int value.
Ntz ( long val ) : int	Returns number of trailing zeros in a 64 bit long value.
Ntz2 ( long x ) : int	returns 0 based index of first set bit (only works for x!=0) This is an alternate implementation of ntz()
Ntz3 ( long x ) : int	returns 0 based index of first set bit This is an alternate implementation of ntz()
Pop ( long x ) : int	Returns the number of bits set in the long
Pop_andnot ( long A, long B, int wordOffset, int numWords ) : long	Returns the popcount or cardinality of A & ~B Neither array is modified.
Pop_array ( long A, int wordOffset, int numWords ) : long	Returns the number of set bits in an array of longs.
Pop_intersect ( long A, long B, int wordOffset, int numWords ) : long	Returns the popcount or cardinality of the two sets after an intersection. Neither array is modified.
Pop_union ( long A, long B, int wordOffset, int numWords ) : long	Returns the popcount or cardinality of the union of two sets. Neither array is modified.
Pop_xor ( long A, long B, int wordOffset, int numWords ) : long

Method Details

Property Details