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longpoly Class Reference

This helper class describes polynomials with long coefficients. More...

#include <SimSeqs.h>

List of all members.

Public Methods
	longpoly (long cflen=15, long bs=0)
	~longpoly ()
long	GetDegree ()
long	SetDegree (long deg)
long	SetCoeff (long k, long val)
long	GetCoeff (long k)
longpoly*	times (longpoly &poly1)
Protected Attributes
long	deg
long	base
long*	coeff
long	coefflen

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Detailed Description

This helper class describes polynomials with long coefficients.

I know, this should probably be implemented as a Template class so that arbitrary data types are allowed. I'm just too lazy for now ;-)

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Constructor & Destructor Documentation

longpoly::longpoly ( long cflen = 15, long bs = 0 )

initializes the polynomial with the given number of coefficients (order, default is 15) and in base bs (default is 0). If bs is set <=0, this means: "Don't do any modulo operations on the coefficients",i.e. we are in Z

longpoly::~longpoly ( )

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Member Function Documentation

long longpoly::GetCoeff ( long k )

Gets the k-th coefficient.

long longpoly::GetDegree ( )

Returns the degree of the polynomial (memory allocated for the coefficients).

long longpoly::SetCoeff ( long k, long val )

Sets the k-th coefficient to val.

long longpoly::SetDegree ( long deg )

Sets a new possible degree for the polynomial by allocating sufficient memory (old coefficients are preserved).

longpoly * longpoly::times ( longpoly & poly1 )

multiply this polynomial with another one (poly1). A new longpoly object is returned, which has to be free manually / by the garbage collection

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Member Data Documentation

long longpoly::base [protected]

if we are in the Ring Z_n, this is the base for all the modulo operations.

long * longpoly::coeff [protected]

this field stores the coefficients of the polynomial.

long longpoly::coefflen [protected]

Size of memory allocated for the coefficients.

long longpoly::deg [protected]

stores the degree of the polynomial.

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

• SimSeqs.h
• SimSeqs.cpp

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