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values-negative.hpp
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3  * Main authors:
4  * Christian Schulte <schulte@gecode.org>
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7  * Christian Schulte, 2008
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33 
34 namespace Gecode { namespace Iter { namespace Values {
35 
42  template<class I, bool strict=false>
43  class Negative {
44  protected:
46  I i;
47  public:
49 
50  Negative(void);
53  Negative(I& i);
55  void init(I& i);
57 
59 
60  bool operator ()(void) const;
63  void operator ++(void);
65 
67 
68  int val(void) const;
71  };
72 
73 
74  template<class I, bool strict>
77 
78  template<class I, bool strict>
79  forceinline void
81  i=i0;
82  }
83 
84  template<class I, bool strict>
87 
88  template<class I, bool strict>
89  forceinline void
91  ++i;
92  }
93  template<class I, bool strict>
94  forceinline bool
96  if (strict) {
97  return i() && (i.val() < 0);
98  } else {
99  return i() && (i.val() <= 0);
100  }
101  }
102 
103  template<class I, bool strict>
104  forceinline int
106  return i.val();
107  }
108 
109 }}}
110 
111 // STATISTICS: iter-any
112 
void operator++(void)
Move iterator to next value (if possible)
int val(void) const
Return current value.
I i
Input iterator.
Gecode toplevel namespace
bool operator()(void) const
Test whether iterator is still at a value or done.
Value iterator for selecting only negative values.
Negative(void)
Default constructor.
void init(I &i)
Initialize with values from i.
#define forceinline
Definition: config.hpp:192
Gecode::IntArgs i({1, 2, 3, 4})