Permutation.h
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34 
35 /* Author: Mark Moll */
36 
37 #ifndef OMPL_DATASTRUCTURES_PERMUTATION_
38 #define OMPL_DATASTRUCTURES_PERMUTATION_
39 
40 #include <random>
41 
42 namespace ompl
43 {
49  class Permutation : public std::vector<int>
50  {
51  public:
53  Permutation(std::size_t n) : std::vector<int>(n)
54  {
55  permute(n);
56  }
58  void permute(unsigned int n)
59  {
60  if (size() < n)
61  resize(n);
62  for (unsigned int i = 0; i < n; ++i)
63  operator[](i) = i;
64  std::shuffle(begin(), begin() + n, generator_);
65  }
66 
67  private:
69  std::mt19937 generator_;
70  };
71 }
72 
73 #endif
void permute(unsigned int n)
Create a permutation of the numbers 0, ..., n - 1.
Definition: Permutation.h:58
STL namespace.
Permutation(std::size_t n)
Create a permutation of the numbers 0, ... , n - 1.
Definition: Permutation.h:53
Main namespace. Contains everything in this library.
Definition: AppBase.h:21
A permutation of indices into an array.
Definition: Permutation.h:49