Random Class Reference

#include <Rand.h>

Public Member Functions
	Random ()
	Construct and seed from std::random_device.
	Random (uint32_t seed)
	Construct with a deterministic seed.
float	rand005 ()
	Draw a random float in [0, 0.5).
float	rand051 ()
	Draw a random float in [0.5, 1).
float	rand01 ()
	Draw a random float in [0, 1).
float	rand11 ()
	Draw a random float in [-1, 1).
float	rand0Pi ()
	Draw a random float in [0, ).
template<typename T>
T	rand (T a, T b)
	Draw a value uniformly in the half-open interval [a, b).
template<typename T>
void	shuffle (std::vector< T > &a)
	Shuffle a container in-place using Fisher–Yates.

Constructor & Destructor Documentation

Random() [1/2]

Random::Random

(

)

Construct and seed from std::random_device.

Random() [2/2]

Random::Random

(

uint32_t

seed

)

Construct with a deterministic seed.

Parameters

seed	Seed value for the underlying PRNG.

Member Function Documentation

rand()

template<typename T>

T Random::rand ( T a, T b )

inline

Draw a value uniformly in the half-open interval [a, b).

Template Parameters

T	Arithmetic type (typically float/double/int). For integral types, the result is produced by scaling a [0,1) float and casting.

Parameters

a	Lower bound (inclusive).
b	Upper bound (exclusive conceptually; for integers, distribution is effectively over the discrete set starting at a).

Returns

A value in the range [a, b).

Warning

For integral T the mapping is via cast from float and thus not perfectly uniform over the integers.

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rand005()

float Random::rand005

(

)

Draw a random float in [0, 0.5).

Returns

Value .

rand01()

float Random::rand01

(

)

Draw a random float in [0, 1).

Returns

Value .

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rand051()

float Random::rand051

(

)

Draw a random float in [0.5, 1).

Returns

Value .

rand0Pi()

float Random::rand0Pi

(

)

Draw a random float in [0, ).

Returns

Value (radians).

rand11()

float Random::rand11

(

)

Draw a random float in [-1, 1).

Returns

Value .

shuffle()

template<typename T>

void Random::shuffle ( std::vector< T > & a )

inline

Shuffle a container in-place using Fisher–Yates.

Template Parameters

T	Element type contained in the vector.

Parameters

a	Container to shuffle.

Note

Uses this instance's PRNG via rand<size_t>().

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

• Rand.h
• Rand.cpp