decPRNG Class Reference

Psuedo Random Number Generator. More...

#include <decPRNG.h>

Public Member Functions
Constructors and Destructors
	decPRNG ()
	Create new pseudo random number generator. More...
	decPRNG (unsigned int seed)
	Create new pseudo random number generator. More...
	~decPRNG ()
	Clean up pseudo random number generator. More...

Management
void	Reset ()
	Resets the pseudo random number generator to the construction state. More...
void	Reset (unsigned int seed)
	Resets the pseudo random number generator with a new seed. More...
int	RandomInt ()
	Next random number as integer value. More...
int	RandomInt (int lower, int upper)
	Next random number as integer value. More...
float	RandomFloat ()
	Next random number as float value. More...
float	RandomFloat (float lower, float upper)
	Next random number as float value. More...
double	RandomDouble ()
	Next random number as double value. More...
double	RandomDouble (double lower, double upper)
	Next random number as double value. More...

Detailed Description

Psuedo Random Number Generator.

Provides a simple PRNG that works the same across all supported platform no matter the actual random implementation used by the platform.

Constructor & Destructor Documentation

decPRNG() [1/2]

decPRNG::decPRNG

(

)

Create new pseudo random number generator.

Uses the current system time as seed.

decPRNG() [2/2]

decPRNG::decPRNG

(

unsigned int

seed

)

Create new pseudo random number generator.

Parameters

[in]

seed

The seed to use.

~decPRNG()

decPRNG::~decPRNG

(

)

Clean up pseudo random number generator.

Member Function Documentation

RandomDouble() [1/2]

double decPRNG::RandomDouble

(

)

Next random number as double value.

Returns

Random number as double value in the range from 0 to 1.

RandomDouble() [2/2]

double decPRNG::RandomDouble	(	double	lower,
		double	upper
	)

Next random number as double value.

Parameters

[in]	lower	The lower value to map the random value to.
[in]	upper	The upper value to map the random value to. If upper is less than lower upper is considered to be equal to lower.

Returns

Random number as double value in the range from lower to upper.

RandomFloat() [1/2]

float decPRNG::RandomFloat

(

)

Next random number as float value.

Returns

Random number as float value in the range from 0 to 1.

RandomFloat() [2/2]

float decPRNG::RandomFloat	(	float	lower,
		float	upper
	)

Next random number as float value.

Parameters

[in]	lower	The lower value to map the random value to.
[in]	upper	The upper value to map the random value to. If upper is less than lower upper is considered to be equal to lower.

Returns

Random number as float value in the range from lower to upper.

RandomInt() [1/2]

int decPRNG::RandomInt

(

)

Next random number as integer value.

Returns

Random number as integer value in the range from 0 to DE_RANDOM_INT_UPPER.

RandomInt() [2/2]

int decPRNG::RandomInt	(	int	lower,
		int	upper
	)

Next random number as integer value.

Parameters

[in]	lower	The lower value to map the random value to.
[in]	upper	The upper value to map the random value to. If upper is less than lower upper is considered to be equal to lower.

Returns

Random number as integer value in the range from lower to upper.

Reset() [1/2]

void decPRNG::Reset

(

)

Resets the pseudo random number generator to the construction state.

Reset() [2/2]

void decPRNG::Reset

(

unsigned int

seed

)

Resets the pseudo random number generator with a new seed.

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

• decPRNG.h