73 lines
1.6 KiB
C++
73 lines
1.6 KiB
C++
/* $XConsortium: BitVector.h /main/4 1996/08/21 15:49:59 drk $ */
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#ifndef _BitVector_h
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#define _BitVector_h 1
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#include <stream.h>
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#ifndef CDE_NEXT
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#else
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//#include <StyleSheet/cde_next.h>
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#include "dti_cc/CC_Slist.h"
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#endif
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#define WORD_SIZE 32
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class posRecord
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{
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public:
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posRecord(unsigned int x = 0, unsigned int y = 0) :
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pathTermPos(x), bitPos(y) {};
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~posRecord() {};
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unsigned int operator ==(const posRecord&);
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public:
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unsigned int pathTermPos;
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unsigned int bitPos;
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};
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typedef CC_TValSlist<posRecord> positionArrayT;
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typedef CC_TValSlistIterator<posRecord> positionArrayIteratorT;
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///////////////////////////////////////////////////////
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// A storage/manipulation efficient bit vector class
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///////////////////////////////////////////////////////
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class BitVector
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{
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positionArrayT *f_positionArray;
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unsigned int *f_array;
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unsigned int f_bits;
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unsigned int f_words;
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public:
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BitVector(int bits, unsigned int initValue);
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~BitVector();
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//
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// bits range: 0 .. bits-1
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// the 0th bit is LSB, the (bits-1)th bit is MSB
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//
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void setAllBitsTo(unsigned int);
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void setTo(BitVector&);
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void recordPositions(unsigned int pathTermPos, unsigned int BitPos);
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positionArrayT* positionArray() { return f_positionArray; };
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void setBitTo(int i, unsigned int);
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unsigned int getBit(int i);
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BitVector& operator &=(BitVector&);
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BitVector& operator ^=(BitVector&);
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BitVector& operator |=(BitVector&);
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// Note: the MSB is set to 1 after each shiftRightOneBit() call.
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BitVector& shiftRightOneBit();
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BitVector& shiftLeftOneBit();
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friend ostream& operator<<(ostream&, BitVector&);
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};
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#endif
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