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ranges-add.hpp
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7  * Christian Schulte, 2005
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10  * $Date: 2010-07-28 17:35:33 +0200 (Wed, 28 Jul 2010) $ by $Author: schulte $
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37 
38 namespace Gecode { namespace Iter { namespace Ranges {
39 
45  template<class I>
46  class AddRange : public MinMax {
47  protected:
49  I i;
51  int r_min;
53  int r_max;
54  public:
56 
57  AddRange(void);
60  AddRange(I& i, int min, int max);
62  void init(I& i, int min, int max);
64 
66 
67  void operator ++(void);
70  };
71 
72 
78  template<class I>
79  class SubRange : public AddRange<I> {
80  public:
82 
83  SubRange(void);
86  SubRange(I& i, int min, int max);
88  void init(I& i, int min, int max);
90  };
91 
92  template<class I>
95 
96  template<class I>
97  forceinline void
99  if (i()) {
100  mi = r_min + i.min();
101  ma = r_max + i.max();
102  ++i;
103  while (i() && (ma+1 >= r_min+i.min())) {
104  ma = r_max + i.max(); ++i;
105  }
106  } else {
107  finish();
108  }
109  }
110 
111  template<class I>
113  AddRange<I>::AddRange(I& i0, int r_min0, int r_max0)
114  : i(i0), r_min(r_min0), r_max(r_max0) {
115  operator ++();
116  }
117 
118  template<class I>
119  forceinline void
120  AddRange<I>::init(I& i0, int r_min0, int r_max0) {
121  i = i0; r_min = r_min0; r_max = r_max0;
122  operator ++();
123  }
124 
125 
126  template<class I>
129 
130  template<class I>
132  SubRange<I>::SubRange(I& i, int r_min, int r_max)
133  : AddRange<I>(i,-r_max,-r_min) {}
134 
135  template<class I>
136  forceinline void
137  SubRange<I>::init(I& i, int r_min, int r_max) {
138  AddRange<I>::init(i,-r_max,-r_min);
139  }
140 
141 }}}
142 
143 // STATISTICS: iter-any
144 
SubRange(void)
Default constructor.
Definition: ranges-add.hpp:128
Range iterator for adding a single range to a range iterator.
Definition: ranges-add.hpp:46
int max(void) const
Return largest value of range.
void init(I &i, int min, int max)
Initialize with ranges i and range min to max.
Definition: ranges-add.hpp:137
Base for range iterators with explicit min and max.
void operator++(void)
Move iterator to next range (if possible)
Definition: ranges-add.hpp:98
I i
Iterator to which the range is to be added.
Definition: ranges-add.hpp:49
AddRange(void)
Default constructor.
Definition: ranges-add.hpp:94
int min(void) const
Return smallest value of range.
Gecode::IntArgs i(4, 1, 2, 3, 4)
void init(I &i, int min, int max)
Initialize with ranges i and range min to max.
Definition: ranges-add.hpp:120
#define forceinline
Definition: config.hpp:132
Range iterator for subtracting a single range from a range iterator.
Definition: ranges-add.hpp:79
int r_min
Minimum of range to be added.
Definition: ranges-add.hpp:51
Gecode toplevel namespace
int r_max
Maximum of range to be added.
Definition: ranges-add.hpp:53