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root/OpenMD/trunk/src/utils/BitSet.hpp
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Comparing trunk/src/utils/BitSet.hpp (file contents):
Revision 277 by tim, Tue Feb 1 06:55:00 2005 UTC vs.
Revision 290 by tim, Fri Feb 4 22:42:12 2005 UTC

# Line 42 | Line 42
42   #ifndef UTILS_BITSET_HPP
43   #define UTILS_BITSET_HPP
44  
45 + #include <functional>
46   #include <vector>
47   namespace oopse {
48  
49   /**
50   * @class BitSet BitSet.hpp "BitSet.hpp"
51 < * @brief BitSet is a wrapper class of std::vector<char>
51 > * @brief BitSet is a wrapper class of std::vector<char> to act as a growable std::bitset
52   */
53   class BitSet {
54      public:
55          /** */
56          BitSet() {}
57          /** */
58 <        BitSet(int nbits) {  bitset_.resize(nbits);  }
58 >        BitSet(int nbits) : bitset_(nbits) {clearAll(); }
59  
60          /** Returns the number of bits set to true in this BitSet.  */
61          int countBits();
# Line 74 | Line 75 | class BitSet {
75          /** Returns a new BitSet composed of bits from this BitSet from fromIndex(inclusive) to toIndex(exclusive). */
76          BitSet get(int fromIndex, int toIndex);
77          
78 <        /** Returns true if this BitSet contains no bits that are set to true. */
79 <        bool isEmpty();
80 <                
78 >        /** Returns true if any bits are set to true */
79 >        bool any() {return !none(); }
80 >
81 >        /** Returns true if no bits are set to true */
82 >        bool none();
83 >        
84          /** Returns the index of the first bit that is set to false that occurs on or after the specified starting index.*/
85          int nextOffBit(int fromIndex);
86          
# Line 84 | Line 88 | class BitSet {
88          int nextOnBit(int fromIndex);
89          
90          /** Performs a logical AND of this target bit set with the argument bit set. */
91 <        void and(const BitSet& bs);
92 <
89 <        /** Clears all of the bits in this BitSet whose corresponding bit is set in the specified BitSet. */
90 <        void andNot(const BitSet& bs);
91 <        
91 >        void andOperator (const BitSet& bs);
92 >      
93          /** Performs a logical OR of this bit set with the bit set argument. */
94 <        void or(const BitSet& bs);
94 >        void orOperator (const BitSet& bs);
95          
96          /** Performs a logical XOR of this bit set with the bit set argument. */
97 <        void xor(const BitSet& bs);        
97 >        void xorOperator (const BitSet& bs);        
98                
99          void setBitOn(int bitIndex) {  setBit(bitIndex, true);  }
100  
# Line 104 | Line 105 | class BitSet {
105          void setRangeOff(int fromIndex, int toIndex) {  setBits(fromIndex, toIndex, false);  }        
106  
107          /** Sets all of the bits in this BitSet to false. */
108 <        void clear() {  setRangeOff(0, size());  }        
108 >        void clearAll() {  setRangeOff(0, size());  }        
109 >
110 >        void setAll() {  setRangeOn(0, size());  }        
111          
112          /** Returns the number of bits of space actually in use by this BitSet to represent bit values. */
113 <        int size() {  return bitset_.size();  }
113 >        int size() const {  return bitset_.size();  }
114  
115          /** Changes the size of BitSet*/
116 <        bool resize(int nbits) {  bitset_.resize();  }
116 >        void resize(int nbits);
117          
118 <        BitSet& operator&= (const BitSet &bs) {  and(bs); return *this; }
119 <        BitSet& operator|= (const BitSet &bs) { or(bs); return *this; }
120 <        BitSet& operator^= (const BitSet &bs) { xor(bs); return *this; }
118 >        BitSet& operator&= (const BitSet &bs) {  andOperator (bs); return *this; }
119 >        BitSet& operator|= (const BitSet &bs) { orOperator (bs); return *this; }
120 >        BitSet& operator^= (const BitSet &bs) { xorOperator (bs); return *this; }
121          bool operator[] (int bitIndex) {  return bitset_[bitIndex];  }
122  
123 <        friend BitSet operator| (BitSet& bs1, BitSet& bs2);
124 <        friend BitSet operator& (BitSet& bs1, BitSet& bs2);
125 <        friend BitSet operator^ (BitSet& bs1, BitSet& bs2);
123 >        friend BitSet operator| (const BitSet& bs1, const BitSet& bs2);
124 >        friend BitSet operator& (const BitSet& bs1, const BitSet& bs2);
125 >        friend BitSet operator^ (const BitSet& bs1, const BitSet& bs2);
126          friend bool operator== (const BitSet & bs1, const BitSet &bs2);
127  
128 <        friend std::istream& operator>> ( std::istream&, BitSet& bs);
128 >        friend std::istream& operator>> ( std::istream&, const BitSet& bs);
129          friend std::ostream& operator<< ( std::ostream&, const BitSet& bs) ;
130  
131      private:
# Line 131 | Line 134 | class BitSet {
134          void setBit(int bitIndex, bool value) { bitset_[bitIndex] = value; }
135          
136          /** Sets the bits from the specified fromIndex(inclusive) to the specified toIndex(exclusive) to the specified value. */
137 <        void setBits(int fromIndex, int toIndex, bool value) {}
137 >        void setBits(int fromIndex, int toIndex, bool value);
138          
139          std::vector<char> bitset_;
140   };
141  
142 + template<typename T>
143 + struct logical_xor :public std::binary_function<T, T, bool> {
144 +    double operator()(T x, T y) { return x ^ y; }
145 + };
146 +
147   }
148   #endif

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