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ranges-offset.hpp
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7  * Christian Schulte, 2004
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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 Offset {
47  protected:
49  I i;
51  int c;
52  public:
54 
55  Offset(void);
58  Offset(I& i, int c);
60  void init(I& i, int c);
62 
64 
65  bool operator ()(void) const;
68  void operator ++(void);
70 
72 
73  int min(void) const;
76  int max(void) const;
78  unsigned int width(void) const;
80  };
81 
82 
83  template<class I>
86 
87  template<class I>
88  inline void
89  Offset<I>::init(I& i0, int c0) {
90  i = i0; c = c0;
91  }
92 
93  template<class I>
94  inline
95  Offset<I>::Offset(I& i0, int c0) : i(i0), c(c0) {}
96 
97  template<class I>
98  forceinline void
100  ++i;
101  }
102  template<class I>
103  forceinline bool
105  return i();
106  }
107 
108  template<class I>
109  forceinline int
110  Offset<I>::min(void) const {
111  return i.min()+c;
112  }
113  template<class I>
114  forceinline int
115  Offset<I>::max(void) const {
116  return i.max()+c;
117  }
118  template<class I>
119  forceinline unsigned int
120  Offset<I>::width(void) const {
121  return i.width();
122  }
123 
124 }}}
125 
126 // STATISTICS: iter-any
127 
int min(void) const
Return smallest value of range.
bool operator()(void) const
Test whether iterator is still at a range or done.
void operator++(void)
Move iterator to next range (if possible)
Gecode::FloatVal c(-8, 8)
Gecode::IntArgs i(4, 1, 2, 3, 4)
int max(void) const
Return largest value of range.
int c
Offset for ranges.
Offset(void)
Default constructor.
void init(I &i, int c)
Initialize with ranges from i and offset c.
#define forceinline
Definition: config.hpp:132
unsigned int width(void) const
Return width of range (distance between minimum and maximum)
Gecode toplevel namespace
Range iterator for pointwise offset (by some constant)