Clasp::RNG Class Reference

A very simple but fast Pseudo-random number generator. More...

#include <misc_types.h>

List of all members.

Public Member Functions
double	drand ()
	random floating point number in the range [0, 1.0)
unsigned	irand (unsigned max)
	random number in the range [0, max)
uint32	operator() (unsigned max)
uint32	operator() ()
uint32	rand ()
	Generates a pseudorandom number.
	RNG (uint32 seed=1)
uint32	seed () const
void	srand (uint32 seed)
	Sets the starting point for random-number generation.
Private Attributes
uint32	seed_

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Detailed Description

A very simple but fast Pseudo-random number generator.

Note:

This class is a replacement for the standard rand-function. It is provided in order to get reproducible random numbers among different compilers.

Definition at line 136 of file misc_types.h.

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Constructor & Destructor Documentation

Clasp::RNG::RNG

(

uint32

seed = 1

)

[inline, explicit]

Definition at line 138 of file misc_types.h.

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Member Function Documentation

double Clasp::RNG::drand

(

)

[inline]

random floating point number in the range [0, 1.0)

Definition at line 159 of file misc_types.h.

unsigned Clasp::RNG::irand

(

unsigned

max

)

[inline]

random number in the range [0, max)

Definition at line 164 of file misc_types.h.

uint32 Clasp::RNG::operator()

(

unsigned

max

)

[inline]

Definition at line 170 of file misc_types.h.

uint32 Clasp::RNG::operator()

(

)

[inline]

Definition at line 171 of file misc_types.h.

uint32 Clasp::RNG::rand

(

)

[inline]

Generates a pseudorandom number.

The rand function returns a pseudorandom integer in the range 0 to 32767 Use the srand function to seed the pseudorandom-number generator before calling rand.

Definition at line 154 of file misc_types.h.

uint32 Clasp::RNG::seed

(

)

const [inline]

Definition at line 168 of file misc_types.h.

void Clasp::RNG::srand

(

uint32

seed

)

[inline]

Sets the starting point for random-number generation.

The function sets the starting point for generating a series of pseudorandom integers. To reinitialize the generator, use 1 as the seed argument. Any other value for seed sets the generator to a random starting point. Calling rand() before any call to srand() generates the same sequence as calling srand() with seed passed as 1.

Definition at line 147 of file misc_types.h.

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Member Data Documentation

uint32 Clasp::RNG::seed_ [private]

Definition at line 173 of file misc_types.h.

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

• misc_types.h