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root/group/trunk/OOPSE-4/src/utils/BitSet.hpp
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Comparing trunk/OOPSE-4/src/utils/BitSet.hpp (file contents):
Revision 1980 by tim, Mon Feb 7 19:13:43 2005 UTC vs.
Revision 2069 by tim, Tue Mar 1 20:10:14 2005 UTC

# Line 43 | Line 43
43   #define UTILS_BITSET_HPP
44  
45   #include <iostream>
46 – #include <functional>
46   #include <vector>
47   namespace oopse {
48  
# Line 81 | Line 80 | class BitSet {
80  
81          /** Returns true if no bits are set to true */
82          bool none();
83 +
84 +        int firstOffBit() const { return !bitset_[0] ? 0 : nextOffBit(0); }
85          
86          /** Returns the index of the first bit that is set to false that occurs on or after the specified starting index.*/
87          int nextOffBit(int fromIndex) const;
88 <        
88 >
89 >        int firstOnBit() const { return bitset_[0] ? 0 : nextOnBit(0); }
90 >        
91          /** Returns the index of the first bit that is set to true that occurs on or after the specified starting index. */
92          int nextOnBit(int fromIndex) const;
93          
# Line 119 | Line 122 | class BitSet {
122          BitSet& operator&= (const BitSet &bs) {  andOperator (bs); return *this; }
123          BitSet& operator|= (const BitSet &bs) { orOperator (bs); return *this; }
124          BitSet& operator^= (const BitSet &bs) { xorOperator (bs); return *this; }
125 +        BitSet& operator-= (const BitSet &bs) {
126 +            BitSet tmp = *this ^ bs;
127 +            *this &= tmp;
128 +            return *this;
129 +        }
130 +        
131          bool operator[] (int bitIndex)  const {  return bitset_[bitIndex];  }
132          friend BitSet operator| (const BitSet& bs1, const BitSet& bs2);
133          friend BitSet operator& (const BitSet& bs1, const BitSet& bs2);
134          friend BitSet operator^ (const BitSet& bs1, const BitSet& bs2);
135 +        friend BitSet operator- (const BitSet& bs1, const BitSet& bs2);
136 +        
137          friend bool operator== (const BitSet & bs1, const BitSet &bs2);
138  
139 <        friend std::istream& operator>> ( std::istream&, const BitSet& bs);
139 >        //friend std::istream& operator>> ( std::istream&, const BitSet& bs);
140          friend std::ostream& operator<< ( std::ostream&, const BitSet& bs) ;
141  
142      private:
# Line 139 | Line 150 | class BitSet {
150          std::vector<char> bitset_;
151   };
152  
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 – };
153  
154   }
155   #endif

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