permlib  0.2.6
Library for permutation computations
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Public Types | Public Member Functions | Protected Member Functions | Protected Attributes
permlib::OrbitSet< PERM, PDOMAIN > Class Template Reference

stores an orbit in a set for fast contains() operation More...

#include <orbit_set.h>

Inheritance diagram for permlib::OrbitSet< PERM, PDOMAIN >:
permlib::Orbit< PERM, PDOMAIN >

List of all members.

Public Types

typedef std::set< PDOMAIN >
::const_iterator 
const_iterator

Public Member Functions

virtual bool contains (const PDOMAIN &val) const
 true iff there exists a transversal element mapping $\alpha$ to val
bool empty () const
 true iff orbit is empty (i.e. contains no element at all)
template<class Action >
void orbit (const PDOMAIN &beta, const std::list< typename PERM::ptr > &generators, Action a)
 computes orbit of beta under generators
unsigned long size () const
 number of orbit elements
virtual const PDOMAIN & element () const
 returns one element of the orbit
const_iterator begin () const
 begin-iterator to orbit elements
const_iterator end () const
 end-iterator to orbit elements

Protected Member Functions

virtual bool foundOrbitElement (const PDOMAIN &alpha, const PDOMAIN &alpha_p, const typename PERM::ptr &p)
 callback when the orbit algorithm constructs an element alpha_p from alpha and p

Protected Attributes

std::set< PDOMAIN > m_orbitSet
 orbit elements as set

Detailed Description

template<class PERM, class PDOMAIN>
class permlib::OrbitSet< PERM, PDOMAIN >

stores an orbit in a set for fast contains() operation


Member Function Documentation

template<class PERM , class PDOMAIN >
bool permlib::OrbitSet< PERM, PDOMAIN >::foundOrbitElement ( const PDOMAIN &  alpha,
const PDOMAIN &  alpha_p,
const typename PERM::ptr &  p 
) [inline, protected, virtual]

callback when the orbit algorithm constructs an element alpha_p from alpha and p

Returns:
true iff alpha_p is a new element that has not been seen before

Implements permlib::Orbit< PERM, PDOMAIN >.

template<class PERM , class PDOMAIN >
template<class Action >
void permlib::OrbitSet< PERM, PDOMAIN >::orbit ( const PDOMAIN &  beta,
const std::list< typename PERM::ptr > &  generators,
Action  a 
) [inline]

computes orbit of beta under generators

Parameters:
beta
generators
a()-callable structure that defines how a PERM acts on a PDOMAIN-element
See also:
Transversal::TrivialAction

The documentation for this class was generated from the following file: