chebyshev::random Namespace Reference

Pseudorandom number generation and sampling module. More...

Classes
class	random_settings
	Settings for the random module. More...

Functions
void	setup (uint64_t seed=0)
	Initialize the random module.
uint64_t	natural ()
	Generate a random natural number.
long double	uniform (long double a, long double b)
	Generate a uniformly distributed random number. More...
template<typename Vector >
Vector &	sample_uniform (Vector &x, const std::vector< prec::interval > intervals)
	Fill an already allocated vector with uniformly distributed numbers over different intervals. More...
long double	gaussian (long double m, long double s)
	Generate a Gaussian distributed random number. More...
std::string	string (size_t length)
	Generate a random string made of human-readable ASCII characters. More...
std::string	string (size_t length, std::string alphabet)
	Generate a random string made of the elements of the given alphabet. More...
std::string	string (size_t length, std::vector< char > alphabet)
	Generate a random string made of the elements of the given alphabet. More...
template<typename T >
std::vector< T >	string (size_t length, std::vector< T > alphabet)
	Generate a random string made of the elements of the given alphabet, of arbitrary type. More...

Variables
struct chebyshev::random::random_settings	settings

Detailed Description

Pseudorandom number generation and sampling module.

Function Documentation

gaussian()

long double chebyshev::random::gaussian ( long double  m, long double  s  )

inline

Generate a Gaussian distributed random number.

Parameters

m	The mean of the distribution
s	The standard deviation of the distribution

Returns

A pseudorandom number Gaussian distributed.

sample_uniform()

template<typename Vector >

Vector& chebyshev::random::sample_uniform ( Vector &  x, const std::vector< prec::interval >  intervals  )

inline

Fill an already allocated vector with uniformly distributed numbers over different intervals.

Parameters

x	The already initialized vector to fill.
intervals	The intervals to generate over.

Returns

A reference to the overwritten vector.

string() [1/4]

std::string chebyshev::random::string ( size_t  length )

inline

Generate a random string made of human-readable ASCII characters.

Parameters

length

The length of the string to generate

Returns

A string generated by choosing the elements of the alphabet with uniform probability.

string() [2/4]

std::string chebyshev::random::string ( size_t  length, std::string  alphabet  )

inline

Generate a random string made of the elements of the given alphabet.

Parameters

length	The length of the string to generate
alphabet	A string containing the elements of the alphabet.

Returns

A string generated by choosing the elements of the alphabet with uniform probability.

string() [3/4]

std::string chebyshev::random::string ( size_t  length, std::vector< char >  alphabet  )

inline

Generate a random string made of the elements of the given alphabet.

Parameters

length	The length of the string to generate.
alphabet	A vector containing the elements of the alphabet.

Returns

A string generated by choosing the elements of the alphabet with uniform probability.

string() [4/4]

template<typename T >

std::vector<T> chebyshev::random::string ( size_t  length, std::vector< T >  alphabet  )

inline

Generate a random string made of the elements of the given alphabet, of arbitrary type.

Parameters

length

The length of the string to generate

Returns

A vector generated by choosing the elements of the alphabet with uniform probability.

uniform()

long double chebyshev::random::uniform ( long double  a, long double  b  )

inline

Generate a uniformly distributed random number.

Parameters

a	The lower extreme of the interval
b	The upper extreme of the interval

Returns

A pseudorandom number uniformly distributed over (a, b).