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ranges-values.hpp
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3  * Main authors:
4  * Christian Schulte <schulte@gecode.org>
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7  * Christian Schulte, 2004
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33 
34 namespace Gecode { namespace Iter { namespace Ranges {
35 
41  template<class I>
42  class ToValues {
43  protected:
45  I i;
47  int cur;
49  int max;
51  void start(void);
52  public:
54 
55  ToValues(void);
58  ToValues(I& i);
60  void init(I& i);
62 
64 
65  bool operator ()(void) const;
68  void operator ++(void);
70 
72 
73  int val(void) const;
76  };
77 
78 
79 
80  template<class I>
83 
84  template<class I>
85  forceinline void
87  if (i()) {
88  cur = i.min(); max = i.max();
89  } else {
90  cur = 1; max = 0;
91  }
92  }
93 
94  template<class I>
97  : i(i0) {
98  start();
99  }
100 
101  template<class I>
102  forceinline void
104  i = i0;
105  start();
106  }
107 
108 
109  template<class I>
110  forceinline bool
112  return (cur <= max);
113  }
114 
115  template<class I>
116  forceinline void
118  ++cur;
119  if (cur > max) {
120  ++i;
121  if (i()) {
122  cur = i.min(); max = i.max();
123  }
124  }
125  }
126 
127  template<class I>
128  forceinline int
129  ToValues<I>::val(void) const {
130  return cur;
131  }
132 
133 }}}
134 
135 // STATISTICS: iter-any
136 
Value iterator from range iterator.
int val(void) const
Return current value.
void start(void)
Initialize iterator.
ToValues(I &i)
Initialize with values from range iterator i.
void operator++(void)
Move iterator to next value (if possible)
bool operator()(void) const
Test whether iterator is still at a value or done.
void init(I &i)
Initialize with values from range iterator i.
ToValues(void)
Default constructor.
int max
End of current range.
const FloatNum max
Largest allowed float value.
Definition: float.hh:844
Gecode::IntArgs i({1, 2, 3, 4})
#define forceinline
Definition: config.hpp:192