permlib  0.2.9
Library for permutation computations
random_base_transpose.h
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31 
32 
33 #ifndef RBASECHANGE_H_
34 #define RBASECHANGE_H_
35 
36 #include <permlib/change/base_transpose.h>
37 #include <permlib/generator/random_schreier_generator.h>
38 
39 #include <boost/scoped_ptr.hpp>
40 
41 namespace permlib {
42 
44 
49 template<class PERM, class TRANS>
50 class RandomBaseTranspose : public BaseTranspose<PERM,TRANS> {
51 protected:
52  typedef typename BaseTranspose<PERM,TRANS>::PERMlist PERMlist;
53 
54  virtual Generator<PERM>* setupGenerator(BSGS<PERM,TRANS> &bsgs, unsigned int i, const PERMlist &S_i, const TRANS &U_i) const;
55 };
56 
57 //
58 // ---- IMPLEMENTATION
59 //
60 
61 template<class PERM, class TRANS>
62 Generator<PERM>* RandomBaseTranspose<PERM,TRANS>::setupGenerator(BSGS<PERM,TRANS> &bsgs, unsigned int i, const PERMlist &S_i, const TRANS &U_i) const {
63  return new RandomSchreierGenerator<PERM,TRANS>(bsgs, i, U_i);
64 }
65 
66 }
67 
68 #endif // -- RBASECHANGE_H_
implementation of a randomized base transposition algorithm
Definition: random_base_transpose.h:50
generates a uniformly distributed random element of
Definition: random_schreier_generator.h:46
interface for group element generators
Definition: generator.h:40
virtual Generator< PERM > * setupGenerator(BSGS< PERM, TRANS > &bsgs, unsigned int i, const PERMlist &S_i, const TRANS &U_i) const
initializes the specific Schreier Generator that is used for the BaseTranpose implementation ...
Definition: random_base_transpose.h:62
abstract base class for base transposition
Definition: base_transpose.h:49
Represents a base and strong generating set (BSGS)
Definition: bsgs.h:58
Definition: abstract_bsgs.h:49