permlib  0.2.8
Library for permutation computations
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permlib::NamedGroupType Class Reference

abstract base class for named groups (such as cyclic and symmetric groups) More...

#include <group_type.h>

Inheritance diagram for permlib::NamedGroupType:
permlib::GroupType permlib::AlternatingGroupType permlib::CyclicGroupType permlib::SymmetricGroupType

List of all members.

Public Member Functions

virtual void writeTypeToStream (std::ostream &o) const
 writes type specific string to output stream
const char * name () const
 the name of the group
unsigned int typeDegree () const
 the degree of the named group to which the real action is isomorphic to
- Public Member Functions inherited from permlib::GroupType
void writeToStream (std::ostream &o) const
 writes a human readable identifier to the given output stream
unsigned int realDegree () const
 the degree of the group as permutation group
bool isNaturalAction () const
 returns true iff action is natural
Type type () const
 the type of this the group
bool equals (const GroupType *type_) const
 checks if two group types represent the same permutation group
void setNonNaturalAction (unsigned int realDegree_)
 stores the information that this group acts non-naturally on realDegree many elements
virtual ~GroupType ()
 destructor

Protected Member Functions

 NamedGroupType (const char *name_, unsigned int typeDegree_, unsigned int realDegree_)
virtual bool equalsType (const GroupType *type_) const
 checks if two group types represent the same permutation group
- Protected Member Functions inherited from permlib::GroupType
 GroupType (Type type_, unsigned int realDegree_, bool naturalAction)
 protected constructor

Protected Attributes

const char * m_name
unsigned int m_typeDegree
- Protected Attributes inherited from permlib::GroupType
Type m_type
 group type
unsigned int m_realDegree
 degree of the permutation group
bool m_naturalAction
 stores whether action is natural

Additional Inherited Members

- Public Types inherited from permlib::GroupType
enum  Type {
  None, Trivial, Named, Anonymous,
  WreathSymmetric, DirectProduct
}
 types for which an implementation of GroupType exists

Detailed Description

abstract base class for named groups (such as cyclic and symmetric groups)


Constructor & Destructor Documentation

permlib::NamedGroupType::NamedGroupType ( const char *  name_,
unsigned int  typeDegree_,
unsigned int  realDegree_ 
)
inlineprotected
Parameters:
nameshort name for the group
typeDegreedegree of named group to which the real action is isomorphic to
realDegreethe number of elements the permutation group acts on

Member Function Documentation

virtual bool permlib::NamedGroupType::equalsType ( const GroupType type_) const
inlineprotectedvirtual

checks if two group types represent the same permutation group

This method may expect that the given group type is of the same type as itself. Thus it may cast type to its own type.

Reimplemented from permlib::GroupType.


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