permlib  0.2.9
Library for permutation computations
pointwise_stabilizer_predicate.h
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31 
32 
33 #ifndef POINTWISESTABILIZERPREDICATE_H_
34 #define POINTWISESTABILIZERPREDICATE_H_
35 
36 #include <boost/foreach.hpp>
37 
38 namespace permlib {
39 
41 template <class PERM>
42 class PointwiseStabilizerPredicate : public std::unary_function<typename PERM::ptr, bool> {
43 public:
45 
49  template<class InputIterator>
50  PointwiseStabilizerPredicate(InputIterator begin, InputIterator end)
51  : m_toStabilize(begin, end)
52  { }
53 
54  explicit PointwiseStabilizerPredicate(unsigned int x)
55  : m_toStabilize(1, x)
56  { }
57 
59  bool operator()(const typename PERM::ptr &p) const {
60  BOOST_FOREACH(unsigned long beta, m_toStabilize) {
61  if (*p / beta != beta)
62  return false;
63  }
64  return true;
65  };
66 private:
67  std::vector<dom_int> m_toStabilize;
68 };
69 
70 }
71 
72 #endif // -- POINTWISESTABILIZERPREDICATE_H_
PointwiseStabilizerPredicate(InputIterator begin, InputIterator end)
constructor
Definition: pointwise_stabilizer_predicate.h:50
predicate matching a permutation if it stabilizes a given list of points pointwise ...
Definition: pointwise_stabilizer_predicate.h:42
bool operator()(const typename PERM::ptr &p) const
evaluate predicate
Definition: pointwise_stabilizer_predicate.h:59
Definition: abstract_bsgs.h:49