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values-negative.hpp
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4  * Christian Schulte <schulte@gecode.org>
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7  * Christian Schulte, 2008
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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 Values {
39 
46  template<class I, bool strict=false>
47  class Negative {
48  protected:
50  I i;
51  public:
53 
54  Negative(void);
57  Negative(I& i);
59  void init(I& i);
61 
63 
64  bool operator ()(void) const;
67  void operator ++(void);
69 
71 
72  int val(void) const;
75  };
76 
77 
78  template<class I, bool strict>
81 
82  template<class I, bool strict>
83  forceinline void
85  i=i0;
86  }
87 
88  template<class I, bool strict>
91 
92  template<class I, bool strict>
93  forceinline void
95  ++i;
96  }
97  template<class I, bool strict>
98  forceinline bool
100  if (strict) {
101  return i() && (i.val() < 0);
102  } else {
103  return i() && (i.val() <= 0);
104  }
105  }
106 
107  template<class I, bool strict>
108  forceinline int
110  return i.val();
111  }
112 
113 }}}
114 
115 // STATISTICS: iter-any
116 
void operator++(void)
Move iterator to next value (if possible)
Gecode::IntArgs i(4, 1, 2, 3, 4)
Negative(void)
Default constructor.
int val(void) const
Return current value.
void init(I &i)
Initialize with values from i.
Value iterator for selecting only negative values.
#define forceinline
Definition: config.hpp:132
Gecode toplevel namespace
bool operator()(void) const
Test whether iterator is still at a value or done.