#include <cRandom.h>

Inheritance diagram for Gray::cRandomBase:

Public Types
typedef UINT	SEED_t
	default seed size might be 32 or 64 bit depending on k_RAND_MAX. More...

Public Member Functions
	cRandomBase () noexcept

virtual	~cRandomBase ()

virtual void	InitSeed (const void *pData, size_t iSize)=0

void	InitSeed (IRandomNoise *pSrc, size_t iSize)
	the default random number generator. NOT Thread Safe! More...

void	InitSeedDefault (size_t iSize=sizeof(int))

void	InitSeedUns (UINT iSeed)

virtual HRESULT	GetNoise (void *pData, size_t iSize) override
	fill array with random. return # filled. More...

virtual UINT	get_RandUns ()

bool	GetRandBool ()

virtual UINT	GetRandUX (UINT nScale)

int	GetRandIRange (int iRangeLo, int iRangeHi)

Friends
class	cRandomTests

Detailed Description

Generic abstract base class for a integer/binary (pseudo) random number generator. Similar to .NET System.Random

Note: derived class MUST implement get_RandUns or GetRandUX to generate at least 32 bits or 31 bits of random data.

Member Typedef Documentation

◆ SEED_t

typedef UINT Gray::cRandomBase::SEED_t

default seed size might be 32 or 64 bit depending on k_RAND_MAX.

Constructor & Destructor Documentation

◆ cRandomBase()

Gray::cRandomBase::cRandomBase ( )

inlinenoexcept

◆ ~cRandomBase()

virtual Gray::cRandomBase::~cRandomBase ( )

inlinevirtual

Member Function Documentation

◆ get_RandUns()

UINT Gray::cRandomBase::get_RandUns ( )

virtual

get UINT random number in 0 to < UINT_MAX range default implementation.

Note: derived implementation MUST override get_RandUns or GetRandUX

Reimplemented in GrayLib::cRandomWGenerator, GrayLib::cRandomBGenerator, GrayLib::cRandomMersenne, and Gray::cRandomOS.

◆ GetNoise()

HRESULT Gray::cRandomBase::GetNoise	(	void *	pData,
		size_t	iSize
	)

overridevirtual

fill array with random. return # filled.

fill a buffer with random bytes of data. < 0 = error.

Implements Gray::IRandomNoise.

Reimplemented in Gray::cRandomOS.

◆ GetRandBool()

bool Gray::cRandomBase::GetRandBool ( )

inline

flip a coin.

◆ GetRandIRange()

int Gray::cRandomBase::GetRandIRange	(	int	iRangeLo,
		int	iRangeHi
	)

get a random integer inclusive inside range. default implementation.

Returns: a random number in an inclusive range of integers.

◆ GetRandUX()

UINT Gray::cRandomBase::GetRandUX ( UINT nScale )

virtual

Get random number in scale. 0 to scale. unsigned integer is NON inclusive range. from 0 to nScale-1

get random integer number in 0 to < nScale range NON inclusive default implementation.

Note: derived implementation MUST override get_RandUns() or GetRandUX()

Reimplemented in GrayLib::cRandomFloatDef, GrayLib::cRandomCombo2< _TYPE1, _TYPE2 >, and Gray::cRandomDef.

◆ InitSeed() [1/2]

virtual void Gray::cRandomBase::InitSeed	(	const void *	pData,
		size_t	iSize
	)

pure virtual

Implemented in GrayLib::cRandomWGenerator, GrayLib::cRandomBGenerator, GrayLib::cRandomMersenne, GrayLib::cRandomFloatDef, GrayLib::cRandomCombo2< _TYPE1, _TYPE2 >, and Gray::cRandomDef.

◆ InitSeed() [2/2]

void Gray::cRandomBase::InitSeed	(	IRandomNoise *	pSrc,
		size_t	iSize
	)

the default random number generator. NOT Thread Safe!

◆ InitSeedDefault()

void Gray::cRandomBase::InitSeedDefault ( size_t iSize = sizeof(int) )

Initialize random sequence randomly. Seed the random generator with time or some mix of more random data. NOT Deterministic!

◆ InitSeedUns()

void Gray::cRandomBase::InitSeedUns ( UINT iSeed )

set seed from UINT. Similar to SEED_t

Friends And Related Function Documentation

◆ cRandomTests

friend class cRandomTests

friend

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

c:/Dennis/Source/Gray/GrayCore/include/cRandom.h
c:/Dennis/Source/Gray/GrayCore/src/cRandom.cpp

Public Types

Public Member Functions

Friends