PaGMO  1.1.5
barabasi_albert.h
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24 
25 #ifndef PAGMO_TOPOLOGY_BARABASI_ALBERT_H
26 #define PAGMO_TOPOLOGY_BARABASI_ALBERT_H
27 
28 #include <cstddef>
29 #include <string>
30 
31 #include "../config.h"
32 #include "../rng.h"
33 #include "../serialization.h"
34 #include "base.h"
35 
36 namespace pagmo { namespace topology {
37 
39 
54 class __PAGMO_VISIBLE barabasi_albert: public base
55 {
56  public:
57  barabasi_albert(int m0 = 3, int m = 2);
58  base_ptr clone() const;
59  std::string get_name() const;
60  protected:
61  void connect(const vertices_size_type &);
62  std::string human_readable_extra() const;
63  private:
64  friend class boost::serialization::access;
65  template <class Archive>
66  void serialize(Archive &ar, const unsigned int)
67  {
68  ar & boost::serialization::base_object<base>(*this);
69  ar & const_cast<std::size_t &>(m_m0);
70  ar & const_cast<std::size_t &>(m_m);
71  ar & m_drng;
72  ar & m_urng;
73  }
74  // Size of the kernel - the starting number of nodes.
75  const std::size_t m_m0;
76  // Number of edges per newly-inserted node.
77  const std::size_t m_m;
78  // Double random number generator
79  rng_double m_drng;
80  // Integer random number generator.
81  rng_uint32 m_urng;
82 };
83 
84 }}
85 
86 BOOST_CLASS_EXPORT_KEY(pagmo::topology::barabasi_albert)
87 
88 #endif
Root PaGMO namespace.
boost::shared_ptr< base > base_ptr
Alias for shared pointer to base topology.
Definition: topology/base.h:47
This rng returns an unsigned integer in the [0,2**32-1] range.
Definition: rng.h:47
Base topology class.
Definition: topology/base.h:75
graph_type::vertices_size_type vertices_size_type
Vertices size type.
Barabási-Albert graph topology.
This rng returns a double in the [0,1[ range.
Definition: rng.h:89