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root/OpenMD/trunk/src/utils/BitSet.cpp
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Comparing trunk/src/utils/BitSet.cpp (file contents):
Revision 277 by tim, Tue Feb 1 06:55:00 2005 UTC vs.
Revision 507 by gezelter, Fri Apr 15 22:04:00 2005 UTC

# Line 39 | Line 39
39   * such damages.
40   */
41  
42 – #include "utils/BitSet.hpp"
42   #include <algorithm>
43 + #include <cassert>
44 + #include <string>
45 +
46 + #include "utils/BitSet.hpp"
47 + #include "utils/Algorithm.hpp"
48 +
49   namespace oopse {
50 < int BitSet::countBits() {
51 <    std::count(bitset_.begin(), bitset_.end(), true);
52 < }
50 >  int BitSet::countBits() {
51 > #ifdef __RWSTD    
52 >    //For the compiler(Sun, MSVC6.0) binding with RougeWave STL Library, we need to use old-style
53 >    // std::count which is error-prone.
54 >    int count = 0;
55 >    std::count(bitset_.begin(), bitset_.end(), true, count);
56 >    return count;
57 > #else
58 >    return std::count(bitset_.begin(), bitset_.end(), true);
59 > #endif
60 >  }
61  
62 < void BitSet::flip(int fromIndex, int toIndex) {
62 >  void BitSet::flip(int fromIndex, int toIndex) {
63      assert(fromIndex <= toIndex);
64      assert(fromIndex >=0);
65      assert(toIndex <= size());
# Line 55 | Line 68 | void BitSet::flip(int fromIndex, int toIndex) {
68  
69      std::transform(first, last, first, std::logical_not<bool>());
70          
71 < }
71 >  }
72  
73 < BitSet BitSet::get(int fromIndex, int toIndex) {
73 >  BitSet BitSet::get(int fromIndex, int toIndex) {
74      assert(fromIndex <= toIndex);
75      assert(fromIndex >=0);
76      assert(toIndex <= size());
# Line 67 | Line 80 | BitSet BitSet::get(int fromIndex, int toIndex) {
80      BitSet result;
81      std::copy(first, last, std::back_inserter(result.bitset_));
82      return result;
83 < }
83 >  }
84  
85 < bool BitSet::isEmpty() {
85 >  bool BitSet::none() {
86      std::vector<char>::iterator i = std::find(bitset_.begin(), bitset_.end(), true);
87      return i == bitset_.end() ? true : false;
88 < }
88 >  }
89      
90 < int BitSet::nextOffBit(int fromIndex) {
90 >  int BitSet::nextOffBit(int fromIndex) const {
91 >    if (fromIndex <= -1) {
92 >      //in case -1 or other negative number is passed to this function
93 >      return -1;
94 >    }
95 >    
96 >    ++fromIndex;
97 >    while (fromIndex < size()) {
98 >      if (!bitset_[fromIndex]) {
99 >        return fromIndex;
100 >      }
101 >      ++fromIndex;
102 >    }
103  
104 < }
104 >    return -1;
105 >  }
106  
107 < int BitSet::nextOnBit(int fromIndex);
107 >  int BitSet::nextOnBit(int fromIndex) const {
108 >    if (fromIndex <= -1) {
109 >      //in case -1 or other negative number is passed to this function
110 >      return -1;
111 >    }
112  
113 < void BitSet::and(const BitSet& bs) {
113 >    ++fromIndex;
114 >    while (fromIndex < size()) {
115 >      if (bitset_[fromIndex]) {
116 >        return fromIndex;
117 >      }
118 >      ++fromIndex;
119 >    }
120 >
121 >    return -1;
122 >  }
123 >
124 >  void BitSet::andOperator (const BitSet& bs) {
125      assert(size() == bs.size());
126  
127      std::transform(bs.bitset_.begin(), bs.bitset_.end(), bitset_.begin(), bitset_.begin(), std::logical_and<bool>());
128 < }
128 >  }
129  
130 < void BitSet::andNot(const BitSet& bs) {
130 >  void BitSet::orOperator (const BitSet& bs) {
131      assert(size() == bs.size());
91 –    std::transform(bs.bitset_.begin(), bs.bitset_.end(), bitset_.begin(), bitset_.begin(), oopse::logical_andNot<bool>());        
92 – }
93 –
94 – void BitSet::or(const BitSet& bs){
95 –    assert(size() == bs.size());
132      std::transform(bs.bitset_.begin(), bs.bitset_.end(), bitset_.begin(), bitset_.begin(), std::logical_or<bool>());    
133 < }
133 >  }
134  
135 < void BitSet::xor(const BitSet& bs);       {
135 >  void BitSet::xorOperator (const BitSet& bs) {
136      assert(size() == bs.size());
137      std::transform(bs.bitset_.begin(), bs.bitset_.end(), bitset_.begin(), bitset_.begin(), oopse::logical_xor<bool>());        
138 < }
138 >  }
139    
140 < void BitSet::setBits(int fromIndex, int toIndex, bool value) {
140 >  void BitSet::setBits(int fromIndex, int toIndex, bool value) {
141      assert(fromIndex <= toIndex);
142      assert(fromIndex >=0);
143      assert(toIndex <= size());
144      std::vector<char>::iterator first = bitset_.begin() + fromIndex;
145      std::vector<char>::iterator last = bitset_.begin() + toIndex;
146      std::fill(first, last, value);
147 < }
147 >  }
148  
149 < BitSet operator| (BitSet& bs1, BitSet& bs2) {
149 >  void BitSet::resize(int nbits) {
150 >    int oldSize = size();
151 >    bitset_.resize(nbits);
152 >    if (nbits > oldSize) {
153 >      std::fill(bitset_.begin()+oldSize, bitset_.end(), false);
154 >    }
155 >  }
156 >
157 >  BitSet operator| (const BitSet& bs1, const BitSet& bs2) {
158      assert(bs1.size() == bs2.size());
159  
160      BitSet result(bs1);
161      result |= bs2;
162      return result;
163 < }
163 >  }
164  
165 < BitSet operator& (BitSet& bs1, BitSet& bs2) {
165 >  BitSet operator& (const BitSet& bs1, const BitSet& bs2) {
166      assert(bs1.size() == bs2.size());
167  
168      BitSet result(bs1);
169      result &= bs2;
170      return result;
171 < }
171 >  }
172  
173 < BitSet operator^ (BitSet& bs1, BitSet& bs2) {
173 >  BitSet operator^ (const BitSet& bs1, const BitSet& bs2) {
174      assert(bs1.size() == bs2.size());
175  
176      BitSet result(bs1);
177      result ^= bs2;
178      return result;
179 < }
179 >  }
180  
181 < bool operator== (const BitSet & bs1, const BitSet &bs2) {
181 >  BitSet operator- (const BitSet& bs1, const BitSet& bs2) {
182      assert(bs1.size() == bs2.size());
139 –    return std::equal(bs1.bitset_.begin(), bs1.bitset_.end(), bs2.bitset_.begin());
140 – }
183  
184 < std::istream& operator>> ( std::istream& is, BitSet& bs) {
184 >    BitSet result(bs1);
185 >    result -= bs2;
186 >    return result;
187 >  }
188  
189 < }
189 >  bool operator== (const BitSet & bs1, const BitSet &bs2) {
190 >    assert(bs1.size() == bs2.size());
191 >    return std::equal(bs1.bitset_.begin(), bs1.bitset_.end(), bs2.bitset_.begin());
192 >  }
193  
194 < std::ostream& operator<< ( std::ostream& os, const BitSet& bs) {
194 >  //std::istream& operator>> ( std::istream& is, const BitSet& bs) {
195 >  //
196 >  //    return is;
197 >  //}
198  
199 < }
199 >  std::ostream& operator<< ( std::ostream& os, const BitSet& bs) {
200 >    for (int i = 0; i < bs.bitset_.size(); ++i) {
201 >      std::string val = bs[i] ? "true" : "false";
202 >      os << "BitSet[" << i <<"] = " << val << std::endl;
203 >    }
204 >    
205 >    return os;
206 >  }
207  
208   }

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