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ranges-offset.hpp
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4  * Christian Schulte <schulte@gecode.org>
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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 
#define forceinline
Definition: config.hpp:173
Gecode::IntArgs i(4, 1, 2, 3, 4)
const FloatNum min
Smallest allowed float value.
Definition: float.hh:850
bool operator()(void) const
Test whether iterator is still at a range or done.
Gecode toplevel namespace
void init(I &i, int c)
Initialize with ranges from i and offset c.
void operator++(void)
Move iterator to next range (if possible)
Range iterator for pointwise offset (by some constant)
I i
Input range.
int max(void) const
Return largest value of range.
int c
Offset for ranges.
Gecode::FloatVal c(-8, 8)
unsigned int width(void) const
Return width of range (distance between minimum and maximum)
Offset(void)
Default constructor.
int min(void) const
Return smallest value of range.
const FloatNum max
Largest allowed float value.
Definition: float.hh:848