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values-bitset.hpp
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37 
38 namespace Gecode { namespace Iter { namespace Values {
39 
45  template<class BS>
46  class BitSet {
47  protected:
49  const BS& bs;
51  unsigned int cur;
53  unsigned int limit;
55  void move(void);
56  public:
58 
59  BitSet(const BS& bs);
62  BitSet(const BS& bs, int n, int m);
64 
66 
67  bool operator ()(void) const;
70  void operator ++(void);
72 
74 
75  int val(void) const;
78  };
79 
80 
81  template<class BS>
83  BitSet<BS>::BitSet(const BS& bs0)
84  : bs(bs0), cur(bs.next(0)), limit(bs.size()) {
85  }
86 
87  template<class BS>
89  BitSet<BS>::BitSet(const BS& bs0, int n, int m)
90  : bs(bs0),
91  cur(bs.next(static_cast<unsigned int>(n))),
92  limit(std::min(bs.size(),static_cast<unsigned int>(m)+1)) {
93  }
94 
95  template<class BS>
96  forceinline void
98  cur=bs.next(cur+1);
99  }
100  template<class BS>
101  forceinline bool
103  return cur < limit;
104  }
105 
106  template<class BS>
107  forceinline int
108  BitSet<BS>::val(void) const {
109  return static_cast<int>(cur);
110  }
111 
112 }}}
113 
114 // STATISTICS: iter-any
#define forceinline
Definition: config.hpp:173
Value iterator for values in a bitset.
unsigned int size(I &i)
Size of all ranges of range iterator i.
const BS & bs
Bitset.
void operator++(void)
Move iterator to next value (if possible)
unsigned int cur
Current value.
Gecode toplevel namespace
int val(void) const
Return current value.
void move(void)
Move to next set bit.
void min(Home home, FloatVar x0, FloatVar x1, FloatVar x2)
Post propagator for .
Definition: arithmetic.cpp:71
BitSet(const BS &bs)
Initialize with bitset bs.
int n
Number of negative literals for node type.
Definition: bool-expr.cpp:238
bool operator()(void) const
Test whether iterator is still at a value or done.
unsigned int limit
Limit value.