void	spot::srand (unsigned int seed)
	Reset the seed of the pseudo-random number generator.

int	spot::rrand (int min, int max)
	Compute a pseudo-random integer value between min and max included.

int	spot::mrand (int max)
	Compute a pseudo-random integer value between 0 and max-1 included.

double	spot::drand ()
	Compute a pseudo-random double value between 0.0 and 1.0 (1.0 excluded).

double	spot::nrand ()
	Compute a pseudo-random double value following a standard normal distribution. (Odeh & Evans)

template<class iterator_type >
void	spot::mrandom_shuffle (iterator_type &&first, iterator_type &&last)
	Shuffle the container using mrand function above. This allows to get rid off shuffle or random_shuffle that use uniform_distribution and RandomIterator that are not portables.

Detailed Description

Function Documentation

◆ drand()

double spot::drand ( )

#include <spot/misc/random.hh>

Compute a pseudo-random double value between 0.0 and 1.0 (1.0 excluded).

See also: mrand, rrand, srand

◆ mrand()

int spot::mrand ( int max )

#include <spot/misc/random.hh>

Compute a pseudo-random integer value between 0 and max-1 included.

See also: drand, rrand, srand

Referenced by spot::mrandom_shuffle().

◆ mrandom_shuffle()

template<class iterator_type >

void spot::mrandom_shuffle	(	iterator_type &&	first,
		iterator_type &&	last
	)

#include <spot/misc/random.hh>

Shuffle the container using mrand function above. This allows to get rid off shuffle or random_shuffle that use uniform_distribution and RandomIterator that are not portables.

References spot::mrand().

◆ nrand()

double spot::nrand ( )

#include <spot/misc/random.hh>

Compute a pseudo-random double value following a standard normal distribution. (Odeh & Evans)

This uses a polynomial approximation of the inverse cumulated density function from Odeh & Evans, Journal of Applied Statistics, 1974, vol 23, pp 96-97.

◆ rrand()

int spot::rrand	(	int	min,
		int	max
	)

#include <spot/misc/random.hh>

Compute a pseudo-random integer value between min and max included.

See also: drand, mrand, srand

◆ srand()

void spot::srand ( unsigned int seed )

#include <spot/misc/random.hh>

Reset the seed of the pseudo-random number generator.

See also: drand, mrand, rrand