PrimeIterator< Trait > Class Template Reference

Prime Iterator. More...

#include <random-prime.h>

Inheritance diagram for PrimeIterator< Trait >:

Public Types
typedef UniqueSamplingTrait< Trait >	UniqueSamplingTag
	whether a prime can be picked more than once

Public Member Functions
	PrimeIterator (uint64_t bits=23, uint64_t seed=0)
	Constructor. More...
PrimeIterator< Trait > &	operator++ ()
	operator++() (prefix ++ operator) creates a new random prime.
const Prime_Type &	operator* () const
	get the random prime. More...
void	setBits (uint64_t bits)
	Sets the bit size. More...

Static Public Member Functions
static void	setSeed (uint64_t ul)
	Sets the seed. More...

Protected Attributes
uint64_t	_bits
	common lenght of all primes
integer	_prime
	the generated prime. More...
Givaro::IntPrimeDom	_IPD
	empty struct dealing with primality. More...

Detailed Description

template<class Trait = IteratorCategories::HeuristicTag>
class LinBox::PrimeIterator< Trait >

Prime Iterator.

Generates prime of specified length using a heuristically random distribution (no guarantee whatsoever).

Examples:

examples/qchar.C.

Constructor & Destructor Documentation

PrimeIterator()

PrimeIterator ( uint64_t  bits = 23, uint64_t  seed = 0  )

inline

Constructor.

Parameters

bits	size of primes (in bits). Default is 23 so it can fit in a Linbox::Modular<double>.
seed	if 0 a seed will be generated, otherwise, the provided seed will be use.

Member Function Documentation

operator*()

const Prime_Type& operator* ( ) const

inline

get the random prime.

returns the actual prime.

Warning

a new prime is not generated.

setSeed()

static void setSeed ( uint64_t  ul )

inlinestatic

Sets the seed.

Set the random seed to be ul.

Parameters

ul	the new seed.

setBits()

void setBits ( uint64_t  bits )

inline

Sets the bit size.

Parameters

bits	the new bit size.

Field Documentation

_prime

integer _prime

protected

the generated prime.

_IPD

Givaro::IntPrimeDom _IPD

protected

empty struct dealing with primality.

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

• random-prime.h