| 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); |