SPUC::gf Class Reference
[Forward Error Correcting Codes]

Galois Field. More...

#include <gf.h>

Collaboration diagram for SPUC::gf:

[legend]List of all members.

Public Member Functions
	gf ()
	Constructor.
	gf (int qvalue)
	Constructor.
	gf (int qvalue, int inexp)
	Constructor.
	gf (const gf &ingf)
	Copy constructor.
void	set (int qvalue, int inexp)
	gf(q) equals alpha ^ inexp
void	set (int qvalue, const bvec &vectorspace)
	gf(q) equals the element that corresponds to the given vector space. The format is (...,c,b,a), where the element x is given as x=...+c*alpha^2+b*alpha+a.
void	set_size (int qvalue)
	set q=2^mvalue
int	get_size () const
	Return q.
bvec	get_vectorspace () const
	Returns the vector space representation of gf(q).
int	get_value () const
	Returns the alpha exponent.
int	operator== (const gf &ingf) const
	Equality check.
int	operator!= (const gf &ingf) const
	Not-equality check.
void	operator= (const gf &ingf)
	gf(q) equals ingf
void	operator= (const int inexp)
	gf(q) equals alpha^inexp
void	operator+= (const gf &ingf)
	sum of two gf(q)
gf	operator+ (const gf &ingf) const
	sum of two gf(q)
void	operator-= (const gf &ingf)
	Difference of two gf(q), same as sum for q=2^m.
gf	operator- (const gf &ingf) const
	Difference of two gf(q), same as sum for q=2^m.
void	operator *= (const gf &ingf)
	product of two gf(q)
gf	operator * (const gf &ingf) const
	product of two gf(q)
void	operator/= (const gf &ingf)
	division of two gf(q)
gf	operator/ (const gf &ingf) const
	product of two gf(q)
Friends
ostream &	operator<< (ostream &os, const gf &ingf)
	Output stream for gf(q).

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Detailed Description

Galois Field.

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Constructor & Destructor Documentation

SPUC::gf::gf (   )  [inline]

Constructor.

SPUC::gf::gf (  int  qvalue  )  [inline]

Constructor. Here is the call graph for this function:

SPUC::gf::gf (  int  qvalue, int  inexp )  [inline]

Constructor. Here is the call graph for this function:

SPUC::gf::gf (  const gf &  ingf  )  [inline]

Copy constructor.

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Member Function Documentation

int SPUC::gf::get_size (   )  const [inline]

Return q.

int gf::get_value (   )  const

Returns the alpha exponent.

bvec gf::get_vectorspace (   )  const

Returns the vector space representation of gf(q). The format is (...,c,b,a), where the element x is given as x=...+c*alpha^2+b*alpha+a.

gf gf::operator * (  const gf &  ingf  )  const

product of two gf(q)

void gf::operator *= (  const gf &  ingf  )

product of two gf(q)

int gf::operator!= (  const gf &  ingf  )  const

Not-equality check.

gf gf::operator+ (  const gf &  ingf  )  const

sum of two gf(q)

void gf::operator+= (  const gf &  ingf  )

sum of two gf(q)

gf gf::operator- (  const gf &  ingf  )  const

Difference of two gf(q), same as sum for q=2^m.

void gf::operator-= (  const gf &  ingf  )

Difference of two gf(q), same as sum for q=2^m.

gf gf::operator/ (  const gf &  ingf  )  const

product of two gf(q)

void gf::operator/= (  const gf &  ingf  )

division of two gf(q)

void gf::operator= (  const int  inexp  )

gf(q) equals alpha^inexp

void gf::operator= (  const gf &  ingf  )

gf(q) equals ingf

int gf::operator== (  const gf &  ingf  )  const

Equality check.

void gf::set (  int  qvalue, const bvec &  vectorspace )

gf(q) equals the element that corresponds to the given vector space. The format is (...,c,b,a), where the element x is given as x=...+c*alpha^2+b*alpha+a.

void SPUC::gf::set (  int  qvalue, int  inexp )  [inline]

gf(q) equals alpha ^ inexp Here is the call graph for this function:

void gf::set_size (  int  qvalue  )

set q=2^mvalue

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Friends And Related Function Documentation

ostream& operator<< (  ostream &  os, const gf &  ingf )  [friend]

Output stream for gf(q).

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

• comm/gf.h
• comm/gf.cpp

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