Generic object that represents size and shape. More...

#include <dim4.hpp>

Public Member Functions
	dim4 ()
	Default constructor. Creates an invalid dim4 object.

	dim4 (dim_t first, dim_t second=1, dim_t third=1, dim_t fourth=1)
	Creates an new dim4 given a set of dimension.

	dim4 (const dim4 &other)
	Copy constructor.

	dim4 (const unsigned ndims, const dim_t *const dims)
	Constructs a dim4 object from a C array of dim_t objects.

dim_t	elements ()
	Returns the number of elements represented by this dim4.

dim_t	elements () const
	Returns the number of elements represented by this dim4.

dim_t	ndims ()
	Returns the number of axis whose values are greater than one.

dim_t	ndims () const
	Returns the number of axis whose values are greater than one.

bool	operator== (const dim4 &other) const
	Returns true if the two dim4 represent the same shape.

bool	operator!= (const dim4 &other) const
	Returns true if two dim4s store different values.

dim4 &	operator*= (const dim4 &other)
	Element-wise multiplication of the dim4 objects.

dim4 &	operator+= (const dim4 &other)
	Element-wise addition of the dim4 objects.

dim4 &	operator-= (const dim4 &other)
	Element-wise subtraction of the dim4 objects.

dim_t &	operator[] (const unsigned dim)
	Returns the reference to the element at a give index.

const dim_t &	operator[] (const unsigned dim) const
	Returns the reference to the element at a give index.

dim_t *	get ()
	Returns the underlying pointer to the dim4 object.

const dim_t *	get () const
	Returns the underlying pointer to the dim4 object.

Data Fields
dim_t	dims [4]

Detailed Description

Generic object that represents size and shape.

Examples: computer_vision/matching.cpp, financial/black_scholes_options.cpp, graphics/fractal.cpp, graphics/gravity_sim.cpp, graphics/surface.cpp, helloworld/helloworld.cpp, image_processing/brain_segmentation.cpp, image_processing/morphing.cpp, image_processing/optical_flow.cpp, machine_learning/geneticalgorithm.cpp, machine_learning/rbm.cpp, pde/swe.cpp, and unified/basic.cpp.

Definition at line 25 of file dim4.hpp.

Constructor & Destructor Documentation

◆ dim4() [1/4]

dim4 ( )

Default constructor. Creates an invalid dim4 object.

◆ dim4() [2/4]

dim4	(	dim_t	first,
		dim_t	second = `1`,
		dim_t	third = `1`,
		dim_t	fourth = `1`
	)

Creates an new dim4 given a set of dimension.

◆ dim4() [3/4]

dim4 ( const dim4 & other )

Copy constructor.

Parameters

[in] other The dim4 that will be copied

◆ dim4() [4/4]

dim4	(	const unsigned	ndims,
		const dim_t *const	dims
	)

Constructs a dim4 object from a C array of dim_t objects.

Creates a new dim4 from a C array. If the C array is less than 4, all values past ndims will be assigned the value 1.

Parameters

[in]	ndims	The number of elements in the C array. Must be less than 4
[in]	dims	The values to assign to each element of dim4

Member Function Documentation

◆ elements() [1/2]

dim_t elements ( )

Returns the number of elements represented by this dim4.

◆ elements() [2/2]

dim_t elements ( ) const

Returns the number of elements represented by this dim4.

◆ get() [1/2]

dim_t * get ( )

inline

Returns the underlying pointer to the dim4 object.

Definition at line 103 of file dim4.hpp.

103{ return dims; }

af::dim4::dims

dim_t dims[4]

Definition: dim4.hpp:28

◆ get() [2/2]

const dim_t * get ( ) const

inline

Returns the underlying pointer to the dim4 object.

Definition at line 106 of file dim4.hpp.

106{ return dims; }

◆ ndims() [1/2]

dim_t ndims ( )

Returns the number of axis whose values are greater than one.

◆ ndims() [2/2]

dim_t ndims ( ) const

Returns the number of axis whose values are greater than one.

◆ operator!=()

bool operator!= ( const dim4 & other ) const

Returns true if two dim4s store different values.

◆ operator*=()

dim4 & operator*= ( const dim4 & other )

Element-wise multiplication of the dim4 objects.

◆ operator+=()

dim4 & operator+= ( const dim4 & other )

Element-wise addition of the dim4 objects.

◆ operator-=()

dim4 & operator-= ( const dim4 & other )

Element-wise subtraction of the dim4 objects.

◆ operator==()

bool operator== ( const dim4 & other ) const

Returns true if the two dim4 represent the same shape.

◆ operator[]() [1/2]

dim_t & operator[] ( const unsigned dim )

Returns the reference to the element at a give index.

(Must be less than 4)

◆ operator[]() [2/2]

const dim_t & operator[] ( const unsigned dim ) const