uni20::ReshapedTensor< Mdspan, StoragePolicy, BackendSelector > Class Template Reference

Tensor-level descriptor owning a reshaped mdspan and backend selector. More...

#include <reshape.hpp>

Inheritance diagram for uni20::ReshapedTensor< Mdspan, StoragePolicy, BackendSelector >:

Collaboration diagram for uni20::ReshapedTensor< Mdspan, StoragePolicy, BackendSelector >:

Public Types
using	async_alias_tag = void
using	backend_selector_type = BackendSelector
using	const_accessor_type = const_accessor_t< typename mdspan_type::accessor_type >
using	const_element_type = std::add_const_t< std::remove_const_t< element_type > >
using	const_mdspan_type = stdex::mdspan< const_element_type, extents_type, layout_type, const_accessor_type >
using	element_type = typename mdspan_type::element_type
using	extents_type = typename mdspan_type::extents_type
using	index_type = typename mdspan_type::index_type
using	layout_type = typename mdspan_type::layout_type
using	mapping_type = typename mdspan_type::mapping_type
using	mdspan_type = Mdspan
using	storage_policy = StoragePolicy
using	value_type = typename mdspan_type::value_type

Public Member Functions
constexpr auto	backend_selector () const -> backend_selector_type
	Return the source storage's backend selector.
constexpr auto	extent (std::size_t axis) const noexcept -> index_type
	Return one reshaped extent.
constexpr auto	extents () const noexcept -> extents_type const &
	Return the reshaped extents.
constexpr auto	mdspan () &-> mdspan_type
	Resolve the stored reshaped mdspan descriptor for mutable access.
constexpr auto	mdspan () const &-> const_mdspan_type
	Resolve the stored reshaped mdspan descriptor for read-only access.
template<class... Index> requires (sizeof...(Index) == extents_type::rank())
constexpr decltype(auto)	operator[] (Index... indices)
	Evaluate or assign one reshaped element according to accessor mutability.
template<class... Index> requires detail::MdspanIndexPack<mdspan_type, Index...>
constexpr decltype(auto)	operator[] (Index... indices) const
	Evaluate one reshaped element through the read-only accessor.
constexpr	ReshapedTensor (mdspan_type span, backend_selector_type selector)
	Construct from a reshaped mdspan and source backend selector.

Detailed Description

template<MdspanLike Mdspan, class StoragePolicy, class BackendSelector>
class uni20::ReshapedTensor< Mdspan, StoragePolicy, BackendSelector >

Tensor-level descriptor owning a reshaped mdspan and backend selector.

The descriptor aliases the same element storage as its source. Mutability follows the preserved source accessor.

Member Typedef Documentation

async_alias_tag

template<MdspanLike Mdspan, class StoragePolicy , class BackendSelector >

using uni20::ReshapedTensor< Mdspan, StoragePolicy, BackendSelector >::async_alias_tag = void

backend_selector_type

template<MdspanLike Mdspan, class StoragePolicy , class BackendSelector >

using uni20::ReshapedTensor< Mdspan, StoragePolicy, BackendSelector >::backend_selector_type = BackendSelector

const_accessor_type

template<MdspanLike Mdspan, class StoragePolicy , class BackendSelector >

using uni20::ReshapedTensor< Mdspan, StoragePolicy, BackendSelector >::const_accessor_type = const_accessor_t<typename mdspan_type::accessor_type>

const_element_type

template<MdspanLike Mdspan, class StoragePolicy , class BackendSelector >

using uni20::ReshapedTensor< Mdspan, StoragePolicy, BackendSelector >::const_element_type = std::add_const_t<std::remove_const_t<element_type> >

const_mdspan_type

template<MdspanLike Mdspan, class StoragePolicy , class BackendSelector >

using uni20::ReshapedTensor< Mdspan, StoragePolicy, BackendSelector >::const_mdspan_type = stdex::mdspan<const_element_type, extents_type, layout_type, const_accessor_type>

element_type

template<MdspanLike Mdspan, class StoragePolicy , class BackendSelector >

using uni20::ReshapedTensor< Mdspan, StoragePolicy, BackendSelector >::element_type = typename mdspan_type::element_type

extents_type

template<MdspanLike Mdspan, class StoragePolicy , class BackendSelector >

using uni20::ReshapedTensor< Mdspan, StoragePolicy, BackendSelector >::extents_type = typename mdspan_type::extents_type

index_type

template<MdspanLike Mdspan, class StoragePolicy , class BackendSelector >

using uni20::ReshapedTensor< Mdspan, StoragePolicy, BackendSelector >::index_type = typename mdspan_type::index_type

layout_type

template<MdspanLike Mdspan, class StoragePolicy , class BackendSelector >

using uni20::ReshapedTensor< Mdspan, StoragePolicy, BackendSelector >::layout_type = typename mdspan_type::layout_type

mapping_type

template<MdspanLike Mdspan, class StoragePolicy , class BackendSelector >

using uni20::ReshapedTensor< Mdspan, StoragePolicy, BackendSelector >::mapping_type = typename mdspan_type::mapping_type

mdspan_type

template<MdspanLike Mdspan, class StoragePolicy , class BackendSelector >

using uni20::ReshapedTensor< Mdspan, StoragePolicy, BackendSelector >::mdspan_type = Mdspan

storage_policy

template<MdspanLike Mdspan, class StoragePolicy , class BackendSelector >

using uni20::ReshapedTensor< Mdspan, StoragePolicy, BackendSelector >::storage_policy = StoragePolicy

value_type

template<MdspanLike Mdspan, class StoragePolicy , class BackendSelector >

using uni20::ReshapedTensor< Mdspan, StoragePolicy, BackendSelector >::value_type = typename mdspan_type::value_type

Constructor & Destructor Documentation

ReshapedTensor()

template<MdspanLike Mdspan, class StoragePolicy , class BackendSelector >

constexpr uni20::ReshapedTensor< Mdspan, StoragePolicy, BackendSelector >::ReshapedTensor ( mdspan_type  span, backend_selector_type  selector  )

inlineconstexpr

Construct from a reshaped mdspan and source backend selector.

Member Function Documentation

backend_selector()

template<MdspanLike Mdspan, class StoragePolicy , class BackendSelector >

constexpr auto uni20::ReshapedTensor< Mdspan, StoragePolicy, BackendSelector >::backend_selector ( ) const -> backend_selector_type

inlineconstexpr

Return the source storage's backend selector.

extent()

template<MdspanLike Mdspan, class StoragePolicy , class BackendSelector >

constexpr auto uni20::ReshapedTensor< Mdspan, StoragePolicy, BackendSelector >::extent ( std::size_t  axis ) const -> index_type

inlineconstexprnoexcept

Return one reshaped extent.

extents()

template<MdspanLike Mdspan, class StoragePolicy , class BackendSelector >

constexpr auto uni20::ReshapedTensor< Mdspan, StoragePolicy, BackendSelector >::extents ( ) const -> extents_type const&

inlineconstexprnoexcept

Return the reshaped extents.

mdspan() [1/2]

template<MdspanLike Mdspan, class StoragePolicy , class BackendSelector >

constexpr auto uni20::ReshapedTensor< Mdspan, StoragePolicy, BackendSelector >::mdspan ( ) & -> mdspan_type

inlineconstexpr

Resolve the stored reshaped mdspan descriptor for mutable access.

mdspan() [2/2]

template<MdspanLike Mdspan, class StoragePolicy , class BackendSelector >

constexpr auto uni20::ReshapedTensor< Mdspan, StoragePolicy, BackendSelector >::mdspan ( ) const & -> const_mdspan_type

inlineconstexpr

Resolve the stored reshaped mdspan descriptor for read-only access.

operator[]() [1/2]

template<MdspanLike Mdspan, class StoragePolicy , class BackendSelector >

template<class... Index>
requires (sizeof...(Index) == extents_type::rank())

constexpr decltype(auto) uni20::ReshapedTensor< Mdspan, StoragePolicy, BackendSelector >::operator[] ( Index...  indices )

inlineconstexpr

Evaluate or assign one reshaped element according to accessor mutability.

operator[]() [2/2]

template<MdspanLike Mdspan, class StoragePolicy , class BackendSelector >

template<class... Index>
requires detail::MdspanIndexPack<mdspan_type, Index...>

constexpr decltype(auto) uni20::ReshapedTensor< Mdspan, StoragePolicy, BackendSelector >::operator[] ( Index...  indices ) const

inlineconstexpr

Evaluate one reshaped element through the read-only accessor.

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

• reshape.hpp