Rng Class Reference

#include <rng.h>

Public Member Functions
	Rng ()
	Constructor creates instance of gsl_rng of type gsl_rng_mt19937. More...
	~Rng ()
	Destructor frees memory allocated to gsl_rng. More...
void	seed (unsigned long int n, const Verbosity &verbosity)
	Seeds the Rng with the integer argument. More...
void	force_seed (unsigned long int n)
	Seeds the Rng with the integer argument. More...
double	draw ()
	Draws a double from the uniform distribution [0,1) More...
unsigned long int	showseed () const
	Returns the seed number. More...

Private Attributes
gsl_rng *	r
unsigned long int	seed_no

Detailed Description

Definition at line 554 of file rng.h.

Constructor & Destructor Documentation

Rng()

Rng::Rng

(

)

Constructor creates instance of gsl_rng of type gsl_rng_mt19937.

Definition at line 47 of file rng.cc.

References gsl_rng_alloc(), gsl_rng_mt19937, and r.

~Rng()

Rng::~Rng

(

)

Destructor frees memory allocated to gsl_rng.

Definition at line 52 of file rng.cc.

References gsl_rng_free(), and r.

Member Function Documentation

draw()

double Rng::draw

(

)

Draws a double from the uniform distribution [0,1)

Definition at line 97 of file rng.cc.

References gsl_rng_uniform(), and r.

Referenced by abs_lookupTestAccMC(), MCGeneral(), MCIPA(), mcPathTraceRadar(), MCRadar(), ran_gaussian(), ran_uniform(), Sample_los(), and Sample_los_uniform().

force_seed()

void Rng::force_seed

(

unsigned long int

n

)

Seeds the Rng with the integer argument.

Definition at line 89 of file rng.cc.

References gsl_rng_set(), n, r, and seed_no.

seed()

void Rng::seed	(	unsigned long int	n,
		const Verbosity &	verbosity
	)

Seeds the Rng with the integer argument.

Every seed is only used once. The provided seed is increased by 1 until an unused seed is found.

The default is to seed the Rng using the seconds elapsed since 1970.

Definition at line 54 of file rng.cc.

References CREATE_OUT0, gsl_rng_set(), n, r, and seed_no.

Referenced by abs_lookupTestAccMC(), mc_IWP_cloud_opt_pathCalc(), MCGeneral(), MCIPA(), MCRadar(), and psd_cloudice_MH97().

showseed()

unsigned long int Rng::showseed

(

)

const

Returns the seed number.

Definition at line 102 of file rng.cc.

References seed_no.

Member Data Documentation

r

gsl_rng* Rng::r

private

Definition at line 555 of file rng.h.

Referenced by draw(), force_seed(), gsl_rng_alloc(), gsl_rng_clone(), Rng(), seed(), and ~Rng().

seed_no

unsigned long int Rng::seed_no

private

Definition at line 557 of file rng.h.

Referenced by force_seed(), seed(), and showseed().

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

• rng.h
• rng.cc