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values-minus.hpp
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2 /*
3  * Main authors:
4  * Christian Schulte <schulte@gecode.org>
5  *
6  * Copyright:
7  * Christian Schulte, 2007
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10  * $Date: 2011-08-09 02:04:53 +1000 (Tue, 09 Aug 2011) $ by $Author: schulte $
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37 
38 namespace Gecode { namespace Iter { namespace Values {
39 
51  class Minus : public ValueListIter {
52  public:
54 
55 
56  Minus(void);
58  Minus(const Minus& m);
60  template<class I>
61  Minus(Region& r, I& i);
63  template<class I>
64  void init(Region& r, I& i);
66  Minus& operator =(const Minus& m);
68  };
69 
70 
72  Minus::Minus(void) {}
73 
75  Minus::Minus(const Minus& m)
76  : ValueListIter(m) {}
77 
78  template<class I>
79  void
82  ValueList* p = NULL;
83  for (; i(); ++i) {
84  ValueList* t = new (*vlio) ValueList;
85  t->next = p;
86  t->val = -i.val();
87  p = t;
88  }
90  }
91 
92  template<class I>
95  init(r,i);
96  }
97 
100  return static_cast<Minus&>(ValueListIter::operator =(m));
101  }
102 
103 }}}
104 
105 // STATISTICS: iter-any