/usr/include/CLucene/util/BitSet.h is in libclucene-dev 0.9.21b-2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | /*------------------------------------------------------------------------------
* Copyright (C) 2003-2006 Ben van Klinken and the CLucene Team
*
* Distributable under the terms of either the Apache License (Version 2.0) or
* the GNU Lesser General Public License, as specified in the COPYING file.
------------------------------------------------------------------------------*/
#ifndef _lucene_util_BitSet_
#define _lucene_util_BitSet_
#if defined(_LUCENE_PRAGMA_ONCE)
# pragma once
#endif
#include "CLucene/store/Directory.h"
CL_NS_DEF(util)
class BitSet:LUCENE_BASE {
int32_t _size;
int32_t _count;
uint8_t *bits;
protected:
BitSet( const BitSet& copy );
public:
///Create a bitset with the specified size
BitSet ( int32_t size );
BitSet(CL_NS(store)::Directory* d, const char* name);
void write(CL_NS(store)::Directory* d, const char* name);
///Destructor for the bit set
~BitSet();
///get the value of the specified bit
inline bool get(const int32_t bit) const{
return (bits[bit >> 3] & (1 << (bit & 7))) != 0;
}
///set the value of the specified bit
void set(const int32_t bit, bool val=true);
///returns the size of the bitset
int32_t size() const;
/// Returns the total number of one bits in this BitSet. This is efficiently
/// computed and cached, so that, if the BitSet is not changed, no
/// recomputation is done for repeated calls.
int32_t count();
BitSet *clone() const;
};
CL_NS_END
#endif
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