Random.h File Reference

This file offers functions to generate random numbers use when making random searches. More...

Namespaces
namespace	LatticeTester
	LatticeTester namespace.
namespace	LatticeTester::Random

Macros
#define	GERME   (ULONG_MAX / 54321)

Functions
double	LatticeTester::Random::randU01 ()
	Returns a random number in \([0, 1)\).
std::int64_t	LatticeTester::Random::randInt (std::int64_t i, std::int64_t j)
	Return a random integer in \([i, j]\).
NTL::ZZ	LatticeTester::Random::randInt (NTL::ZZ i, NTL::ZZ j)
	This is an overload of the previous method to create an NTL::ZZ integer in the range \([i,j]\).
std::uint64_t	LatticeTester::Random::randBits (int64_t s)
	Returns random blocks of \(s\) bits ( \(s\)-bit integers).
void	LatticeTester::Random::setSeed (std::uint64_t seed=GERME)
	Sets the seed of the generator.

Detailed Description

This file offers functions to generate random numbers use when making random searches.

The base generator is the 64-bit LFSR258 from [12], with period near \(2^{258}\), for 64-bit computers, and the 32-bit generator LFSR113 from [12], with period length near \(2^{113}\) on 32-bits computers. Thus the random numbers are different on 32-bits and 64-bits machines.

Macro Definition Documentation

GERME

#define GERME   (ULONG_MAX / 54321)