shuffle-def.h File Reference

Shuffle preprocessor metaprogram. More...

#include "host.h"
#include "random.h"
#include <assert.h>

Macros
#define	VL_SHUFFLE_array   VL_SHUFFLE_type*
#define	VL_SHUFFLE_prefix   ShufflePrefix
#define	VL_SHUFFLE_type   ShuffleType
#define	VL_SHUFFLE_array   ShuffleType*

Functions
void	VL_SHUFFLE_swap (VL_SHUFFLE_array array, vl_uindex indexA, vl_uindex indexB)
	Swap two array elements. More...
void	VL_SHUFFLE_shuffle (VL_SHUFFLE_array array, vl_size size, VlRand *rand)
	Shuffle. More...

Detailed Description

Author

Andrea Vedaldi

Todo:

large array compatibility.

Macro Definition Documentation

VL_SHUFFLE_array [1/2]

#define VL_SHUFFLE_array   VL_SHUFFLE_type*

Data type of the shuffle container

VL_SHUFFLE_array [2/2]

#define VL_SHUFFLE_array   ShuffleType*

Data type of the shuffle container

VL_SHUFFLE_prefix

#define VL_SHUFFLE_prefix   ShufflePrefix

Prefix of the shuffle functions

VL_SHUFFLE_type

#define VL_SHUFFLE_type   ShuffleType

Data type of the shuffle elements

Function Documentation

VL_SHUFFLE_shuffle()

void VL_SHUFFLE_shuffle ( VL_SHUFFLE_array  array, vl_size  size, VlRand *  rand  )

inline

Parameters

array	(in/out) pointer to the array.
size	size of the array.
rand	random number generator to use.

The function randomly permutes the array.

VL_SHUFFLE_swap()

void VL_SHUFFLE_swap ( VL_SHUFFLE_array  array, vl_uindex  indexA, vl_uindex  indexB  )

inline

Parameters

array	shuffle array.
indexA	index of the first element to swap.
indexB	index of the second element to swap.

The function swaps the two elements a and @ b. The function uses a temporary element of type VL_SHUFFLE_type and the copy operator =.