oasys::ByteGenerator Class Reference

#include <Random.h>

List of all members.

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Detailed Description

Generates a some what random stream of bytes given a seed.

Useful for making random data. The randomizer uses a linear congruential generator I_k = (a * I_{k-1} + c ) mod m with a = 3877, c = 29574, m = 139968. Should probably try find better numbers here.

Definition at line 50 of file Random.h.

Public Member Functions
	ByteGenerator (unsigned int seed=0)
void	fill_bytes (void *buf, size_t size)
	Fill a buffer with size random bytes.
Static Public Attributes
static const unsigned int	A = 1277
static const unsigned int	M = 131072
static const unsigned int	C = 29574
Private Member Functions
void	next ()
	Calculate next random number.
Private Attributes
unsigned int	cur_

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Constructor & Destructor Documentation

oasys::ByteGenerator::ByteGenerator

(

unsigned int

seed = 0

)

Definition at line 8 of file Random.cc.

References next().

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Member Function Documentation

void oasys::ByteGenerator::fill_bytes	(	void *	buf,
		size_t	size
	)

Fill a buffer with size random bytes.

Definition at line 15 of file Random.cc.

References cur_, and next().

void oasys::ByteGenerator::next

(

)

[private]

Calculate next random number.

Definition at line 26 of file Random.cc.

References A, C, cur_, and M.

Referenced by ByteGenerator(), and fill_bytes().

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Member Data Documentation

const unsigned int oasys::ByteGenerator::A = 1277 [static]

Definition at line 59 of file Random.h.

Referenced by next().

const unsigned int oasys::ByteGenerator::M = 131072 [static]

Definition at line 60 of file Random.h.

Referenced by next().

const unsigned int oasys::ByteGenerator::C = 29574 [static]

Definition at line 61 of file Random.h.

Referenced by next().

unsigned int oasys::ByteGenerator::cur_ [private]

Definition at line 64 of file Random.h.

Referenced by fill_bytes(), and next().

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

• Random.h
• Random.cc

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