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

Polynomials over gf(q)[x], where q=2^m, m=1,...,14. More...

#include <gfx.h>

Collaboration diagram for SPUC::gfx:

[legend]List of all members.

Public Member Functions
	gfx ()
	Constructor.
	gfx (int qvalue)
	Constructor.
	gfx (int qvalue, int indegree)
	Constructor.
	gfx (int qvalue, const ivec &invalues)
	Constructor.
	gfx (int qvalue, char *invalues)
	Constructor.
	gfx (int qvalue, string invalues)
	Constructor.
	gfx (const gfx &ingfx)
	Copy constructor.
int	get_size () const
	Return q.
int	get_degree () const
	Return degree of gf(q)[x].
void	set_degree (int indegree)
	Resize the polynomial to the given indegree. If the new polynomial is bigger, then the new coefficients are set to zero.
int	get_true_degree () const
	Return true degree of gf(q)[x].
void	set (int qvalue, const char *invalues)
	Set the gf(q)[x] polynomial.
void	set (int qvalue, const string invalues)
	Set the gf(q)[x] polynomial.
void	set (int qvalue, const ivec &invalues)
	Set the gf(q)[x] polynomial.
void	clear ()
	Set all coefficients to zero.
gf	operator[] (int index) const
	Acces to individual element in the gf(q)[x] polynomial.
gf &	operator[] (int index)
	Acces to individual element in the gf(q)[x] polynomial.
void	operator= (const gfx &ingfx)
	Copy.
void	operator+= (const gfx &ingfx)
	sum of two gf(q)[x]
gfx	operator+ (const gfx &ingfx) const
	sum of two gf(q)[x]
void	operator-= (const gfx &ingfx)
	Difference of two gf(q), same as sum for q=2^m.
gfx	operator- (const gfx &ingfx) const
	Difference of two gf(q), same as sum for q=2^m.
void	operator *= (const gfx &ingfx)
	product of two gf(q)[x]
gfx	operator * (const gfx &ingfx) const
	product of two gf(q)[x]
gf	operator() (const gf &ingf)
	Evaluate polynom at alpha^inexp.
Public Attributes
Array1D< gf >	coeffs
Friends
gfx	operator * (const gf &ingf, const gfx &ingfx)
	Multiply a gf element with a gf(q)[x].
gfx	operator * (const gfx &ingfx, const gf &ingf)
	Multiply a gf(q)[x] with a gf element.
gfx	operator/ (const gfx &ingfx, const gf &ingf)
	Divide a gf(q)[x] with a gf element.
ostream &	operator<< (ostream &os, const gfx &ingfx)
	Output stream.

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Detailed Description

Polynomials over gf(q)[x], where q=2^m, m=1,...,14.

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Constructor & Destructor Documentation

gfx::gfx (   )

Constructor.

gfx::gfx (  int  qvalue  )

Constructor.

gfx::gfx (  int  qvalue, int  indegree )

Constructor.

gfx::gfx (  int  qvalue, const ivec &  invalues )

Constructor.

gfx::gfx (  int  qvalue, char *  invalues )

Constructor.

gfx::gfx (  int  qvalue, string  invalues )

Constructor.

gfx::gfx (  const gfx &  ingfx  )

Copy constructor.

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Member Function Documentation

void gfx::clear (   )

Set all coefficients to zero.

int gfx::get_degree (   )  const

Return degree of gf(q)[x].

int gfx::get_size (   )  const

Return q.

int gfx::get_true_degree (   )  const

Return true degree of gf(q)[x].

gfx gfx::operator * (  const gfx &  ingfx  )  const

product of two gf(q)[x]

void gfx::operator *= (  const gfx &  ingfx  )

product of two gf(q)[x]

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

Evaluate polynom at alpha^inexp.

gfx gfx::operator+ (  const gfx &  ingfx  )  const

sum of two gf(q)[x]

void gfx::operator+= (  const gfx &  ingfx  )

sum of two gf(q)[x]

gfx gfx::operator- (  const gfx &  ingfx  )  const

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

void gfx::operator-= (  const gfx &  ingfx  )

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

void gfx::operator= (  const gfx &  ingfx  )

Copy.

gf& SPUC::gfx::operator[] (  int  index  )  [inline]

Acces to individual element in the gf(q)[x] polynomial.

gf SPUC::gfx::operator[] (  int  index  )  const [inline]

Acces to individual element in the gf(q)[x] polynomial.

void gfx::set (  int  qvalue, const ivec &  invalues )

Set the gf(q)[x] polynomial.

void gfx::set (  int  qvalue, const string  invalues )

Set the gf(q)[x] polynomial.

void gfx::set (  int  qvalue, const char *  invalues )

Set the gf(q)[x] polynomial.

void gfx::set_degree (  int  indegree  )

Resize the polynomial to the given indegree. If the new polynomial is bigger, then the new coefficients are set to zero.

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Friends And Related Function Documentation

gfx operator * (  const gfx &  ingfx, const gf &  ingf )  [friend]

Multiply a gf(q)[x] with a gf element.

gfx operator * (  const gf &  ingf, const gfx &  ingfx )  [friend]

Multiply a gf element with a gf(q)[x].

gfx operator/ (  const gfx &  ingfx, const gf &  ingf )  [friend]

Divide a gf(q)[x] with a gf element.

ostream& operator<< (  ostream &  os, const gfx &  ingfx )  [friend]

Output stream.

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Member Data Documentation

Array1D<gf> SPUC::gfx::coeffs

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

• comm/gfx.h
• comm/gfx.cpp

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