rand_util.c File Reference

Wrappers around the available random number generators. More...

#include <config/config.h>
#include <stdio.h>
#include <stdlib.h>
#include <oski/common.h>
#include <oski/mangle.h>
#include "rand_util.h"

Functions
oski_index_t	rand_GenIndex (oski_index_t a, oski_index_t b)
	Returns a random integer index in the interval .
oski_value_t	rand_GenValueReal (double a, double b)
	Returns a random pure real scalar in the interval .
oski_value_t	rand_GenValue (double a, double b)
	Returns a random value in the interval .
static void	swap_inds (oski_index_t *p_i, oski_index_t *p_j)
static void	swap_vals (oski_value_t *p_i, oski_value_t *p_j)
void	rand_PermuteIndices (oski_index_t *ind, oski_index_t len)
	Randomly permute the elements of an array of indices.
void	rand_PermuteIndValPairs (oski_index_t *ind, oski_value_t *val, oski_index_t len)
	Randomly permute corresponding (index, value) pairs of elements.

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Detailed Description

Wrappers around the available random number generators.

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Function Documentation

oski_index_t rand_GenIndex	(	oski_index_t	a,
		oski_index_t	b
	)

Returns a random integer index in the interval .

oski_value_t rand_GenValue	(	double	a,
		double	b
	)

Returns a random value in the interval .

If oski_value_t is complex, then the real and imaginary parts each lie in the interval.

References _IM, and _RE.

oski_value_t rand_GenValueReal	(	double	a,
		double	b
	)

Returns a random pure real scalar in the interval .

Thus, if oski_value_t is complex, then the imaginary part is set to 0.

References MAKE_VAL_COMPLEX.

void rand_PermuteIndices	(	oski_index_t *	ind,
		oski_index_t	len
	)

Randomly permute the elements of an array of indices.

void rand_PermuteIndValPairs	(	oski_index_t *	ind,
		oski_value_t *	val,
		oski_index_t	len
	)

Randomly permute corresponding (index, value) pairs of elements.