LatticeTester::IntFactor< Int > Class Template Reference

The objects of this class are the "prime" factors in the decomposition of a positive integer. More...

#include <IntFactor.h>

Public Member Functions
	IntFactor (const Int &x, int mult=1, PrimeType stat=UNKNOWN)
	Constructor for a factor \(x\) of multiplicity mult that has a PrimeType stat
Int	getFactor () const
	Returns the numeric value of this factor.
void	setFactor (const Int &x)
	Sets the value of this factor to \(x\).
int	getMultiplicity () const
	Returns the multiplicity of this object.
void	setMultiplicity (int m)
	Sets the multiplicity of this object to \(m\).
PrimeType	getStatus () const
	Returns the PrimeType of this object.
void	setStatus (PrimeType s)
	Sets the PrimeType of this object to \(s\).
LatticeTester::PrimeType	isPrime (std::int64_t k)
	Tests whether this factor is prime.
std::string	toString () const
	Returns this object as a string.

Static Public Member Functions
static PrimeType	isPrime (const Int &y, std::int64_t k)
	Tests whether \(y\) is prime.
static std::string	toString (LatticeTester::PrimeType stat)
	Transforms status stat in an easily readable string and returns it.

Detailed Description

template<typename Int>
class LatticeTester::IntFactor< Int >

The objects of this class are the "prime" factors in the decomposition of a positive integer.

The class also contains functions to determine whether a number is prime, probably prime or composite. These methods can be used externally to test the primality of an integer, or to test if this factor is prime.

Member Function Documentation

isPrime() [1/2]

template<typename Int>

PrimeType LatticeTester::IntFactor< Int >::isPrime ( const Int & y, std::int64_t k )

static

Tests whether \(y\) is prime.

First tests whether \(y\) is divisible by all small primes \(p\) ( \(p < 2^{16}\)) that are kept in file prime.dat. Then applies the Miller-Rabin probability test with \(k\) trials.

References NTL::conv().

Referenced by LatticeTester::NormaPalpha< Int, RedDbl >::calcBound(), and isPrime().

isPrime() [2/2]

template<typename Int>

PrimeType LatticeTester::IntFactor< Int >::isPrime

(

std::int64_t

k

)

Tests whether this factor is prime.

Similar to isPrime above.

References isPrime().

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

• latticetester/include/latticetester/IntFactor.h