RandomNumberGenerator Class Reference

Detailed Description

Random number generator.

This class encapsulates the C++11 random number generation classes for uniform and gaussian (aka normal) distributions as well as their seed. This class guarantees that whenever its seed is reset so are its uniform and normal random number generators.

Definition at line 74 of file FGJSBBase.h.

#include <FGJSBBase.h>

Public Member Functions
	RandomNumberGenerator (unsigned int seed)
	Constructor allowing to specify a seed.
	RandomNumberGenerator (void)
	Default constructor using a seed based on the system clock.
double	GetNormalRandomNumber (void)
	Get a random number which probability of occurrence is following Gauss normal distribution with a mean of 0.0 and a standard deviation of 1.0.
double	GetUniformRandomNumber (void)
	Get a random number which probability of occurrence is uniformly distributed over the segment [-1;1(.
void	seed (unsigned int value)
	Specify a new seed and reinitialize the random generation process.

Constructor & Destructor Documentation

RandomNumberGenerator() [1/2]

RandomNumberGenerator ( void  )

inline

Default constructor using a seed based on the system clock.

Definition at line 77 of file FGJSBBase.h.

                                : uniform_random(-1.0, 1.0), normal_random(0.0, 1.0)
    {
      auto seed_value = std::chrono::system_clock::now().time_since_epoch().count();
      generator.seed(static_cast<unsigned int>(seed_value));
    }

RandomNumberGenerator() [2/2]

RandomNumberGenerator ( unsigned int  seed )

inline

Constructor allowing to specify a seed.

Definition at line 83 of file FGJSBBase.h.

      : generator(seed), uniform_random(-1.0, 1.0), normal_random(0.0, 1.0) {}

Member Function Documentation

GetNormalRandomNumber()

double GetNormalRandomNumber ( void  )

inline

Get a random number which probability of occurrence is following Gauss normal distribution with a mean of 0.0 and a standard deviation of 1.0.

Definition at line 96 of file FGJSBBase.h.

{ return normal_random(generator); }

GetUniformRandomNumber()

double GetUniformRandomNumber ( void  )

inline

Get a random number which probability of occurrence is uniformly distributed over the segment [-1;1(.

Definition at line 93 of file FGJSBBase.h.

{ return uniform_random(generator); }

seed()

void seed ( unsigned int  value )

inline

Specify a new seed and reinitialize the random generation process.

Definition at line 86 of file FGJSBBase.h.

                                  {
      generator.seed(value);
      uniform_random.reset();
      normal_random.reset();
    }

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

• FGJSBBase.h