MathUtils::RandomGenerator Class Reference

High-quality pseudo-random number generator based on xoshiro256**. More...

#include <MathUtils_Random.hxx>

Public Member Functions
	RandomGenerator (const uint64_t theSeed=1)
	Initialize with a seed value. Uses SplitMix64 to expand a single seed into the full 256-bit state, ensuring good initialization even from poor seeds.
void	SetSeed (const uint64_t theSeed)
	Re-seed the generator.
uint64_t	NextInt ()
	Generate next 64-bit unsigned integer.
double	NextReal ()
	Generate next double in [0, 1). Uses 53 bits of randomness for full double precision.

Detailed Description

High-quality pseudo-random number generator based on xoshiro256**.

xoshiro256** is a general-purpose PRNG designed by David Blackman and Sebastiano Vigna. It has:

• 256-bit state (period 2^256 - 1)
• Passes all BigCrush statistical tests
• Very fast on 64-bit hardware
• Equidistributed to 4 dimensions

Suitable for Monte Carlo methods, stochastic optimization, and any application requiring high-quality randomness.

Constructor & Destructor Documentation

RandomGenerator()

MathUtils::RandomGenerator::RandomGenerator ( const uint64_t theSeed = 1 )

inlineexplicit

Initialize with a seed value. Uses SplitMix64 to expand a single seed into the full 256-bit state, ensuring good initialization even from poor seeds.

Parameters

theSeed

seed value (default 1)

Member Function Documentation

NextInt()

uint64_t MathUtils::RandomGenerator::NextInt ( )

inline

Generate next 64-bit unsigned integer.

Returns

pseudo-random value in [0, 2^64)

NextReal()

double MathUtils::RandomGenerator::NextReal ( )

inline

Generate next double in [0, 1). Uses 53 bits of randomness for full double precision.

Returns

pseudo-random value in [0, 1)

SetSeed()

void MathUtils::RandomGenerator::SetSeed ( const uint64_t theSeed )

inline

Re-seed the generator.

Parameters

theSeed

seed value

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

• MathUtils_Random.hxx