Reducing function operating over specified axes. More...

#include <xreducer.hpp>

Inheritance diagram for xt::xreducer< F, CT, X, O >:

Public Types
using	self_type = xreducer<F, CT, X, O>

using	inner_types = xcontainer_inner_types<self_type>

using	reduce_functor_type = typename inner_types::reduce_functor_type

using	init_functor_type = typename inner_types::init_functor_type

using	merge_functor_type = typename inner_types::merge_functor_type

using	xreducer_functors_type = xreducer_functors<reduce_functor_type, init_functor_type, merge_functor_type>

using	xexpression_type = typename inner_types::xexpression_type

using	axes_type = X

using	extension_base = extension::xreducer_base_t<F, CT, X, O>

using	expression_tag = typename extension_base::expression_tag

using	substepper_type = typename inner_types::substepper_type

using	value_type = typename inner_types::value_type

using	reference = typename inner_types::reference

using	const_reference = typename inner_types::const_reference

using	pointer = value_type*

using	const_pointer = const value_type*

using	size_type = typename inner_types::size_type

using	difference_type = typename xexpression_type::difference_type

using	iterable_base = xconst_iterable<self_type>

using	inner_shape_type = typename iterable_base::inner_shape_type

using	shape_type = inner_shape_type

using	dim_mapping_type = typename select_dim_mapping_type<inner_shape_type>::type

using	stepper = typename iterable_base::stepper

using	const_stepper = typename iterable_base::const_stepper

using	bool_load_type = typename xexpression_type::bool_load_type

template<class E , class Func = F, class Opts = O>
using	rebind_t = xreducer<Func, E, X, Opts>

Public Types inherited from xt::xexpression< D >
using	derived_type = D

Public Types inherited from xt::xconst_iterable< xreducer< F, CT, X, O > >
using	derived_type

using	iterable_types

using	inner_shape_type

using	stepper

using	const_stepper

using	layout_iterator

using	const_layout_iterator

using	reverse_layout_iterator

using	const_reverse_layout_iterator

using	linear_iterator

using	const_linear_iterator

using	reverse_linear_iterator

using	const_reverse_linear_iterator

using	broadcast_iterator

using	const_broadcast_iterator

using	reverse_broadcast_iterator

using	const_reverse_broadcast_iterator

using	iterator

using	const_iterator

using	reverse_iterator

using	const_reverse_iterator

Public Types inherited from xt::xaccessible< xreducer< F, CT, X, O > >
using	base_type

using	derived_type

using	reference

using	size_type

Public Types inherited from xt::xconst_accessible< D >
using	derived_type = D

using	inner_types = xcontainer_inner_types<D>

using	reference = typename inner_types::reference

using	const_reference = typename inner_types::const_reference

using	size_type = typename inner_types::size_type

Public Member Functions
template<class... Args>
const_reference	operator() (Args... args) const

template<class... Args>
const_reference	unchecked (Args... args) const

template<class It >
const_reference	element (It first, It last) const

template<class S >
const_stepper	stepper_begin (const S &shape) const noexcept

template<class S >
const_stepper	stepper_end (const S &shape, layout_type) const noexcept

template<class E >
rebind_t< E >	build_reducer (E &&e) const

template<class E , class Func , class Opts >
rebind_t< E, Func, Opts >	build_reducer (E &&e, Func &&func, Opts &&opts) const

xreducer_functors_type	functors () const

const O &	options () const

Constructor
template<class Func , class CTA , class AX , class OX >
	xreducer (Func &&func, CTA &&e, AX &&axes, OX &&options)
	Constructs an xreducer expression applying the specified function to the given expression over the given axes.

Size and shape
const inner_shape_type &	shape () const noexcept
	Returns the shape of the expression.

layout_type	layout () const noexcept
	Returns the shape of the expression.

bool	is_contiguous () const noexcept

Data
const xexpression_type &	expression () const noexcept
	Returns a constant reference to the underlying expression of the reducer.

template<class... Args>
auto	operator() (Args... args) const -> const_reference
	Returns a constant reference to the element at the specified position in the reducer.

template<class... Args>
auto	unchecked (Args... args) const -> const_reference
	Returns a constant reference to the element at the specified position in the reducer.

template<class It >
auto	element (It first, It last) const -> const_reference
	Returns a constant reference to the element at the specified position in the reducer.

Broadcasting
template<class S >
bool	broadcast_shape (S &shape, bool reuse_cache=false) const
	Broadcast the shape of the reducer to the specified parameter.

template<class S >
bool	has_linear_assign (const S &strides) const noexcept
	Checks whether the xreducer can be linearly assigned to an expression with the specified strides.

template<class S >
auto	stepper_begin (const S &shape) const noexcept -> const_stepper

template<class S >
auto	stepper_end (const S &shape, layout_type l) const noexcept -> const_stepper

template<class E >
auto	build_reducer (E &&e) const -> rebind_t< E >

template<class E , class Func , class Opts >
auto	build_reducer (E &&e, Func &&func, Opts &&opts) const -> rebind_t< E, Func, Opts >

Public Member Functions inherited from xt::xexpression< D >
derived_type &	derived_cast () &noexcept
	Returns a reference to the actual derived type of the xexpression.

const derived_type &	derived_cast () const &noexcept
	Returns a constant reference to the actual derived type of the xexpression.

derived_type	derived_cast () &&noexcept
	Returns a constant reference to the actual derived type of the xexpression.

Public Member Functions inherited from xt::xconst_iterable< xreducer< F, CT, X, O > >
const_layout_iterator< L >	begin () const noexcept

const_broadcast_iterator< S, L >	begin (const S &shape) const noexcept

const_layout_iterator< L >	end () const noexcept

const_broadcast_iterator< S, L >	end (const S &shape) const noexcept

const_layout_iterator< L >	cbegin () const noexcept

const_broadcast_iterator< S, L >	cbegin (const S &shape) const noexcept

const_layout_iterator< L >	cend () const noexcept

const_broadcast_iterator< S, L >	cend (const S &shape) const noexcept

const_reverse_layout_iterator< L >	rbegin () const noexcept

const_reverse_broadcast_iterator< S, L >	rbegin (const S &shape) const noexcept

const_reverse_layout_iterator< L >	rend () const noexcept

const_reverse_broadcast_iterator< S, L >	rend (const S &shape) const noexcept

const_reverse_layout_iterator< L >	crbegin () const noexcept

const_reverse_broadcast_iterator< S, L >	crbegin (const S &shape) const noexcept

const_reverse_layout_iterator< L >	crend () const noexcept

const_reverse_broadcast_iterator< S, L >	crend (const S &shape) const noexcept

auto	begin () const noexcept -> const_layout_iterator< L >
	Returns a constant iterator to the first element of the expression.

auto	end () const noexcept -> const_layout_iterator< L >
	Returns a constant iterator to the element following the last element of the expression.

auto	cbegin () const noexcept -> const_layout_iterator< L >
	Returns a constant iterator to the first element of the expression.

auto	cend () const noexcept -> const_layout_iterator< L >
	Returns a constant iterator to the element following the last element of the expression.

auto	begin (const S &shape) const noexcept -> const_broadcast_iterator< S, L >
	Returns a constant iterator to the first element of the expression.

auto	end (const S &shape) const noexcept -> const_broadcast_iterator< S, L >
	Returns a constant iterator to the element following the last element of the expression.

auto	cbegin (const S &shape) const noexcept -> const_broadcast_iterator< S, L >
	Returns a constant iterator to the first element of the expression.

auto	cend (const S &shape) const noexcept -> const_broadcast_iterator< S, L >
	Returns a constant iterator to the element following the last element of the expression.

auto	rbegin () const noexcept -> const_reverse_layout_iterator< L >
	Returns a constant iterator to the first element of the reversed expression.

auto	rend () const noexcept -> const_reverse_layout_iterator< L >
	Returns a constant iterator to the element following the last element of the reversed expression.

auto	crbegin () const noexcept -> const_reverse_layout_iterator< L >
	Returns a constant iterator to the first element of the reversed expression.

auto	crend () const noexcept -> const_reverse_layout_iterator< L >
	Returns a constant iterator to the element following the last element of the reversed expression.

auto	rbegin (const S &shape) const noexcept -> const_reverse_broadcast_iterator< S, L >
	Returns a constant iterator to the first element of the reversed expression.

auto	rend (const S &shape) const noexcept -> const_reverse_broadcast_iterator< S, L >
	Returns a constant iterator to the element following the last element of the reversed expression.

auto	crbegin (const S &shape) const noexcept -> const_reverse_broadcast_iterator< S, L >
	Returns a constant iterator to the first element of the reversed expression.

auto	crend (const S &shape) const noexcept -> const_reverse_broadcast_iterator< S, L >
	Returns a constant iterator to the element following the last element of the reversed expression.

auto	get_cbegin (bool end_index) const noexcept -> const_layout_iterator< L >

auto	get_cbegin (const S &shape, bool end_index) const noexcept -> const_broadcast_iterator< S, L >

auto	get_cend (bool end_index) const noexcept -> const_layout_iterator< L >

auto	get_cend (const S &shape, bool end_index) const noexcept -> const_broadcast_iterator< S, L >

auto	get_stepper_begin (const S &shape) const noexcept -> const_stepper

auto	get_stepper_end (const S &shape, layout_type l) const noexcept -> const_stepper

Public Member Functions inherited from xt::xaccessible< xreducer< F, CT, X, O > >
reference	at (Args... args)

auto	at (Args... args) -> reference
	Returns a reference to the element at the specified position in the expression, after dimension and bounds checking.

const_reference	at (Args... args) const

auto	at (Args... args) const -> const_reference
	Returns a constant reference to the element at the specified position in the expression, after dimension and bounds checking.

disable_integral_t< S, reference >	operator[] (const S &index)

reference	operator[] (std::initializer_list< I > index)

reference	operator[] (size_type i)

auto	operator[] (const S &index) -> disable_integral_t< S, reference >
	Returns a reference to the element at the specified position in the expression.

auto	operator[] (std::initializer_list< I > index) -> reference

reference	periodic (Args... args)

auto	periodic (Args... args) -> reference
	Returns a reference to the element at the specified position in the expression, after applying periodicity to the indices (negative and 'overflowing' indices are changed).

const_reference	periodic (Args... args) const

auto	periodic (Args... args) const -> const_reference
	Returns a constant reference to the element at the specified position in the expression, after applying periodicity to the indices (negative and 'overflowing' indices are changed).

reference	front ()
	Returns a reference to the first element of the expression.

const_reference	front () const
	Returns a constant reference to first the element of the expression.

reference	back ()
	Returns a reference to the last element of the expression.

const_reference	back () const
	Returns a constant reference to last the element of the expression.

Public Member Functions inherited from xt::xconst_accessible< D >
size_type	size () const noexcept
	Returns the size of the expression.

size_type	dimension () const noexcept
	Returns the number of dimensions of the expression.

size_type	shape (size_type index) const
	Returns the i-th dimension of the expression.

template<class... Args>
const_reference	at (Args... args) const

template<class S >
disable_integral_t< S, const_reference >	operator[] (const S &index) const

template<class I >
const_reference	operator[] (std::initializer_list< I > index) const

const_reference	operator[] (size_type i) const

template<class... Args>
const_reference	periodic (Args... args) const

template<class... Args>
bool	in_bounds (Args... args) const
	Returns `true` only if the the specified position is a valid entry in the expression.

const_reference	front () const
	Returns a constant reference to first the element of the expression.

const_reference	back () const
	Returns a constant reference to last the element of the expression.

template<class... Args>
auto	at (Args... args) const -> const_reference
	Returns a constant reference to the element at the specified position in the expression, after dimension and bounds checking.

template<class S >
auto	operator[] (const S &index) const -> disable_integral_t< S, const_reference >
	Returns a constant reference to the element at the specified position in the expression.

template<class I >
auto	operator[] (std::initializer_list< I > index) const -> const_reference

template<class... Args>
auto	periodic (Args... args) const -> const_reference
	Returns a constant reference to the element at the specified position in the expression, after applying periodicity to the indices (negative and 'overflowing' indices are changed).

Static Public Attributes
static constexpr layout_type	static_layout = layout_type::dynamic

static constexpr bool	contiguous_layout = false

Friends
class	xreducer_stepper< F, CT, X, O >

Additional Inherited Members
Protected Member Functions inherited from xt::xsharable_expression< xreducer< F, CT, X, O > >
	xsharable_expression (const xsharable_expression &)=default

	xsharable_expression (xsharable_expression &&)=default

xsharable_expression &	operator= (const xsharable_expression &)=default

xsharable_expression &	operator= (xsharable_expression &&)=default

Protected Member Functions inherited from xt::xexpression< D >
	xexpression (const xexpression &)=default

xexpression &	operator= (const xexpression &)=default

	xexpression (xexpression &&)=default

xexpression &	operator= (xexpression &&)=default

Protected Member Functions inherited from xt::xconst_iterable< xreducer< F, CT, X, O > >
const inner_shape_type &	get_shape () const

Protected Member Functions inherited from xt::xaccessible< xreducer< F, CT, X, O > >
	xaccessible (const xaccessible &)=default

	xaccessible (xaccessible &&)=default

xaccessible &	operator= (const xaccessible &)=default

xaccessible &	operator= (xaccessible &&)=default

Protected Member Functions inherited from xt::xconst_accessible< D >
	xconst_accessible (const xconst_accessible &)=default

xconst_accessible &	operator= (const xconst_accessible &)=default

	xconst_accessible (xconst_accessible &&)=default

xconst_accessible &	operator= (xconst_accessible &&)=default

Detailed Description

template<class F, class CT, class X, class O>
class xt::xreducer< F, CT, X, O >

Reducing function operating over specified axes.

The xreducer class implements an xexpression applying a reducing function to an xexpression over the specified axes.

Template Parameters

F	a tuple of functors (class xreducer_functors or compatible)
CT	the closure type of the xexpression to reduce
X	the list of axes

The reducer's result_type is deduced from the result type of function F::reduce_functor_type when called with elements of the expression

Template Parameters

CT.

See also: reduce

Definition at line 813 of file xreducer.hpp.

Member Typedef Documentation

◆ axes_type

template<class F , class CT , class X , class O >

using xt::xreducer< F, CT, X, O >::axes_type = X

Definition at line 829 of file xreducer.hpp.

◆ bool_load_type

template<class F , class CT , class X , class O >

using xt::xreducer< F, CT, X, O >::bool_load_type = typename xexpression_type::bool_load_type

Definition at line 852 of file xreducer.hpp.

◆ const_pointer

template<class F , class CT , class X , class O >

using xt::xreducer< F, CT, X, O >::const_pointer = const value_type*

Definition at line 839 of file xreducer.hpp.

◆ const_reference

template<class F , class CT , class X , class O >

using xt::xreducer< F, CT, X, O >::const_reference = typename inner_types::const_reference

Definition at line 837 of file xreducer.hpp.

◆ const_stepper

template<class F , class CT , class X , class O >

using xt::xreducer< F, CT, X, O >::const_stepper = typename iterable_base::const_stepper

Definition at line 851 of file xreducer.hpp.

◆ difference_type

template<class F , class CT , class X , class O >

using xt::xreducer< F, CT, X, O >::difference_type = typename xexpression_type::difference_type

Definition at line 842 of file xreducer.hpp.

◆ dim_mapping_type

template<class F , class CT , class X , class O >

using xt::xreducer< F, CT, X, O >::dim_mapping_type = typename select_dim_mapping_type<inner_shape_type>::type

Definition at line 848 of file xreducer.hpp.

◆ expression_tag

template<class F , class CT , class X , class O >

using xt::xreducer< F, CT, X, O >::expression_tag = typename extension_base::expression_tag

Definition at line 832 of file xreducer.hpp.

◆ extension_base

template<class F , class CT , class X , class O >

using xt::xreducer< F, CT, X, O >::extension_base = extension::xreducer_base_t<F, CT, X, O>

Definition at line 831 of file xreducer.hpp.

◆ init_functor_type

template<class F , class CT , class X , class O >

using xt::xreducer< F, CT, X, O >::init_functor_type = typename inner_types::init_functor_type

Definition at line 824 of file xreducer.hpp.

◆ inner_shape_type

template<class F , class CT , class X , class O >

using xt::xreducer< F, CT, X, O >::inner_shape_type = typename iterable_base::inner_shape_type

Definition at line 845 of file xreducer.hpp.

◆ inner_types

template<class F , class CT , class X , class O >

using xt::xreducer< F, CT, X, O >::inner_types = xcontainer_inner_types<self_type>

Definition at line 821 of file xreducer.hpp.

◆ iterable_base

template<class F , class CT , class X , class O >

using xt::xreducer< F, CT, X, O >::iterable_base = xconst_iterable<self_type>

Definition at line 844 of file xreducer.hpp.

◆ merge_functor_type

template<class F , class CT , class X , class O >

using xt::xreducer< F, CT, X, O >::merge_functor_type = typename inner_types::merge_functor_type

Definition at line 825 of file xreducer.hpp.

◆ pointer

template<class F , class CT , class X , class O >

using xt::xreducer< F, CT, X, O >::pointer = value_type*

Definition at line 838 of file xreducer.hpp.

◆ rebind_t

template<class F , class CT , class X , class O >

template<class E , class Func = F, class Opts = O>

using xt::xreducer< F, CT, X, O >::rebind_t = xreducer<Func, E, X, Opts>

Definition at line 886 of file xreducer.hpp.

◆ reduce_functor_type

template<class F , class CT , class X , class O >

using xt::xreducer< F, CT, X, O >::reduce_functor_type = typename inner_types::reduce_functor_type

Definition at line 823 of file xreducer.hpp.

◆ reference

template<class F , class CT , class X , class O >

using xt::xreducer< F, CT, X, O >::reference = typename inner_types::reference

Definition at line 836 of file xreducer.hpp.

◆ self_type

template<class F , class CT , class X , class O >

using xt::xreducer< F, CT, X, O >::self_type = xreducer<F, CT, X, O>

Definition at line 820 of file xreducer.hpp.

◆ shape_type

template<class F , class CT , class X , class O >

using xt::xreducer< F, CT, X, O >::shape_type = inner_shape_type

Definition at line 846 of file xreducer.hpp.

◆ size_type

template<class F , class CT , class X , class O >

using xt::xreducer< F, CT, X, O >::size_type = typename inner_types::size_type

Definition at line 841 of file xreducer.hpp.

◆ stepper

template<class F , class CT , class X , class O >

using xt::xreducer< F, CT, X, O >::stepper = typename iterable_base::stepper

Definition at line 850 of file xreducer.hpp.

◆ substepper_type

template<class F , class CT , class X , class O >

using xt::xreducer< F, CT, X, O >::substepper_type = typename inner_types::substepper_type

Definition at line 834 of file xreducer.hpp.

◆ value_type

template<class F , class CT , class X , class O >

using xt::xreducer< F, CT, X, O >::value_type = typename inner_types::value_type

Definition at line 835 of file xreducer.hpp.

◆ xexpression_type

template<class F , class CT , class X , class O >

using xt::xreducer< F, CT, X, O >::xexpression_type = typename inner_types::xexpression_type

Definition at line 828 of file xreducer.hpp.

◆ xreducer_functors_type

template<class F , class CT , class X , class O >

using xt::xreducer< F, CT, X, O >::xreducer_functors_type = xreducer_functors<reduce_functor_type, init_functor_type, merge_functor_type>

Definition at line 826 of file xreducer.hpp.

Constructor & Destructor Documentation

◆ xreducer()

template<class F , class CT , class X , class O >

template<class Func , class CTA , class AX , class OX >

xt::xreducer< F, CT, X, O >::xreducer	(	Func &&	func,
		CTA &&	e,
		AX &&	axes,
		OX &&	options )

inline

Constructs an xreducer expression applying the specified function to the given expression over the given axes.

Parameters

func	the function to apply
e	the expression to reduce
axes	the axes along which the reduction is performed

Definition at line 1414 of file xreducer.hpp.

Member Function Documentation

◆ broadcast_shape()

template<class F , class CT , class X , class O >

template<class S >

bool xt::xreducer< F, CT, X, O >::broadcast_shape	(	S &	shape,
		bool	reuse_cache = false ) const

inline

Broadcast the shape of the reducer to the specified parameter.

Parameters

shape	the result shape
reuse_cache	parameter for internal optimization

Returns: a boolean indicating whether the broadcasting is trivial

Definition at line 1609 of file xreducer.hpp.

◆ build_reducer() [1/2]

template<class F , class CT , class X , class O >

template<class E >

auto xt::xreducer< F, CT, X, O >::build_reducer ( E && e ) const -> rebind_t<E>

inline

Definition at line 1647 of file xreducer.hpp.

◆ build_reducer() [2/2]

template<class F , class CT , class X , class O >

template<class E , class Func , class Opts >

auto xt::xreducer< F, CT, X, O >::build_reducer	(	E &&	e,
		Func &&	func,
		Opts &&	opts ) const -> rebind_t<E, Func, Opts>

inline

Definition at line 1659 of file xreducer.hpp.

◆ element()

template<class F , class CT , class X , class O >

template<class It >

auto xt::xreducer< F, CT, X, O >::element	(	It	first,
		It	last ) const -> const_reference

inline

Returns a constant reference to the element at the specified position in the reducer.

Parameters

first	iterator starting the sequence of indices
last	iterator ending the sequence of indices The number of indices in the sequence should be equal to or greater than the number of dimensions of the reducer.

Definition at line 1560 of file xreducer.hpp.

◆ expression()

template<class F , class CT , class X , class O >

auto xt::xreducer< F, CT, X, O >::expression ( ) const

inlinenoexcept

Returns a constant reference to the underlying expression of the reducer.

Definition at line 1590 of file xreducer.hpp.

◆ functors()

template<class F , class CT , class X , class O >

xreducer_functors_type xt::xreducer< F, CT, X, O >::functors ( ) const

inline

Definition at line 894 of file xreducer.hpp.

◆ has_linear_assign()

template<class F , class CT , class X , class O >

template<class S >

bool xt::xreducer< F, CT, X, O >::has_linear_assign ( const S & strides ) const

inlinenoexcept

Checks whether the xreducer can be linearly assigned to an expression with the specified strides.

Returns: a boolean indicating whether a linear assign is possible

Definition at line 1621 of file xreducer.hpp.

◆ is_contiguous()

template<class F , class CT , class X , class O >

bool xt::xreducer< F, CT, X, O >::is_contiguous ( ) const

inlinenoexcept

Definition at line 1497 of file xreducer.hpp.

◆ layout()

template<class F , class CT , class X , class O >

layout_type xt::xreducer< F, CT, X, O >::layout ( ) const

inlinenoexcept

Returns the shape of the expression.

Definition at line 1491 of file xreducer.hpp.

◆ operator()()

template<class F , class CT , class X , class O >

template<class... Args>

auto xt::xreducer< F, CT, X, O >::operator() ( Args... args ) const -> const_reference

inline

Returns a constant reference to the element at the specified position in the reducer.

Parameters

args	a list of indices specifying the position in the reducer. Indices must be unsigned integers, the number of indices should be equal or greater than the number of dimensions of the reducer.

Definition at line 1516 of file xreducer.hpp.

◆ options()

template<class F , class CT , class X , class O >

const O & xt::xreducer< F, CT, X, O >::options ( ) const

inline

Definition at line 901 of file xreducer.hpp.

◆ shape()

template<class F , class CT , class X , class O >

auto xt::xreducer< F, CT, X, O >::shape ( ) const

inlinenoexcept

Returns the shape of the expression.

Definition at line 1482 of file xreducer.hpp.

◆ stepper_begin()

template<class F , class CT , class X , class O >

template<class S >

auto xt::xreducer< F, CT, X, O >::stepper_begin ( const S & shape ) const -> const_stepper

inlinenoexcept

Definition at line 1630 of file xreducer.hpp.

◆ stepper_end()

template<class F , class CT , class X , class O >

template<class S >

auto xt::xreducer< F, CT, X, O >::stepper_end	(	const S &	shape,
		layout_type	l ) const -> const_stepper

inlinenoexcept

Definition at line 1638 of file xreducer.hpp.

◆ unchecked()

template<class F , class CT , class X , class O >

template<class... Args>

auto xt::xreducer< F, CT, X, O >::unchecked ( Args... args ) const -> const_reference

inline

Returns a constant reference to the element at the specified position in the reducer.

Parameters

args	a list of indices specifying the position in the reducer. Indices must be unsigned integers, the number of indices must be equal to the number of dimensions of the reducer, else the behavior is undefined.

Warning: This method is meant for performance, for expressions with a dynamic number of dimensions (i.e. not known at compile time). Since it may have undefined behavior (see parameters), operator() should be preferred whenever it is possible.; This method is NOT compatible with broadcasting, meaning the following code has undefined behavior:
xt::xarray<double> a = {{0, 1}, {2, 3}};

xt::xarray<double> b = {0, 1};

auto fd = a + b;

double res = fd.uncheked(0, 1);

xt::xaccumulator_functor
Definition xaccumulator.hpp:43

Definition at line 1545 of file xreducer.hpp.

Friends And Related Symbol Documentation

◆ xreducer_stepper< F, CT, X, O >

template<class F , class CT , class X , class O >

friend class xreducer_stepper< F, CT, X, O >

friend

Definition at line 915 of file xreducer.hpp.

Member Data Documentation

◆ contiguous_layout

template<class F , class CT , class X , class O >

constexpr bool xt::xreducer< F, CT, X, O >::contiguous_layout = false

staticconstexpr

Definition at line 855 of file xreducer.hpp.

◆ static_layout

template<class F , class CT , class X , class O >

constexpr layout_type xt::xreducer< F, CT, X, O >::static_layout = layout_type::dynamic

staticconstexpr

Definition at line 854 of file xreducer.hpp.

The documentation for this class was generated from the following files:

/home/runner/work/xtensor/xtensor/include/xtensor/xmime.hpp
/home/runner/work/xtensor/xtensor/include/xtensor/xreducer.hpp

Public Types

Public Member Functions

Static Public Attributes

Friends

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ axes_type

◆ bool_load_type

◆ const_pointer

◆ const_reference

◆ const_stepper

◆ difference_type

◆ dim_mapping_type

◆ expression_tag

◆ extension_base

◆ init_functor_type

◆ inner_shape_type

◆ inner_types

◆ iterable_base

◆ merge_functor_type

◆ pointer

◆ rebind_t

◆ reduce_functor_type

◆ reference

◆ self_type

◆ shape_type

◆ size_type

◆ stepper

◆ substepper_type

◆ value_type

◆ xexpression_type

◆ xreducer_functors_type

Constructor & Destructor Documentation

◆ xreducer()

Member Function Documentation

◆ broadcast_shape()

◆ build_reducer() [1/2]

◆ build_reducer() [2/2]

◆ element()

◆ expression()

◆ functors()

◆ has_linear_assign()

◆ is_contiguous()

◆ layout()

◆ operator()()

◆ options()

◆ shape()

◆ stepper_begin()

◆ stepper_end()

◆ unchecked()

Friends And Related Symbol Documentation

◆ xreducer_stepper< F, CT, X, O >

Member Data Documentation

◆ contiguous_layout

◆ static_layout