vital::utils::RandomGenerator Class Reference

A basic random number generator for producing uniform distributions of floats. More...

#include <utils.h>

Public Member Functions
	RandomGenerator (mono_float min, mono_float max)
	Constructs a RandomGenerator with specified min and max values.
	RandomGenerator (const RandomGenerator &other)
	Copy constructor, but it re-seeds the engine for uniqueness.
force_inline mono_float	next ()
	Returns the next random float in [min, max].
force_inline poly_float	polyNext ()
	Produces a poly_float with random values in each lane.
force_inline poly_float	polyVoiceNext ()
	Produces a poly_float with random values assigned in pairs (every 2 lanes share the same random value).
force_inline poly_float	polyNext (poly_mask mask)
	Produces a poly_float of random values, only generated for lanes set in mask.
force_inline void	seed (int new_seed)
	Reseeds the internal random engine with new_seed.

Static Public Attributes
static int	next_seed_ = 0
	Static seed counter used to automatically assign seeds if none specified.

Detailed Description

A basic random number generator for producing uniform distributions of floats.

It uses an internal Mersenne Twister (std::mt19937) and a uniform distribution between given min and max values.

Constructor & Destructor Documentation

RandomGenerator() [1/2]

vital::utils::RandomGenerator::RandomGenerator ( mono_float min, mono_float max )

inline

Constructs a RandomGenerator with specified min and max values.

Parameters

min	The minimum floating-point value (inclusive).
max	The maximum floating-point value (inclusive).

RandomGenerator() [2/2]

vital::utils::RandomGenerator::RandomGenerator ( const RandomGenerator & other )

inline

Copy constructor, but it re-seeds the engine for uniqueness.

Parameters

other

Another RandomGenerator to copy min/max from.

Member Function Documentation

next()

force_inline mono_float vital::utils::RandomGenerator::next ( )

inline

Returns the next random float in [min, max].

polyNext() [1/2]

force_inline poly_float vital::utils::RandomGenerator::polyNext ( )

inline

Produces a poly_float with random values in each lane.

Returns

A poly_float of random values (one random value per lane).

polyNext() [2/2]

force_inline poly_float vital::utils::RandomGenerator::polyNext ( poly_mask mask )

inline

Produces a poly_float of random values, only generated for lanes set in mask.

Parameters

mask	A poly_mask indicating which lanes need new random values.

Returns

A poly_float with random values in masked lanes, zero in others.

polyVoiceNext()

force_inline poly_float vital::utils::RandomGenerator::polyVoiceNext ( )

inline

Produces a poly_float with random values assigned in pairs (every 2 lanes share the same random value).

Returns

A poly_float of random values in pairs.

seed()

force_inline void vital::utils::RandomGenerator::seed ( int new_seed )

inline

Reseeds the internal random engine with new_seed.

Parameters

new_seed

The new seed to use.

Member Data Documentation

next_seed_

int vital::utils::RandomGenerator::next_seed_ = 0

static

Static seed counter used to automatically assign seeds if none specified.

Initializes the static seed counter for RandomGenerator.

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

• /Users/davidvogel/repos/VitalHelp/src/synthesis/framework/utils.h
• /Users/davidvogel/repos/VitalHelp/src/synthesis/framework/utils.cpp