uni20::GeneratedTensor< ElementType, Extents, Generator > Class Template Reference

Compact read-only tensor evaluated from logical indices. More...

#include <generated.hpp>

Public Types
using	accessor_type = generated_accessor< element_type, extents_type, generator_type >
using	backend_selector_type = typename storage_policy::backend_selector_type
using	element_type = ElementType
using	extents_type = Extents
using	generator_type = Generator
using	index_type = typename extents_type::index_type
using	layout_type = GeneratedLayout
using	mapping_type = typename layout_type::template mapping< extents_type >
using	mdspan_type = stdex::mdspan< element_type const, extents_type, layout_type, accessor_type >
using	storage_policy = GeneratedStorage
using	value_type = element_type

Public Member Functions
constexpr auto	extent (std::size_t axis) const noexcept -> index_type
	Return one generated tensor extent.
constexpr auto	extents () const noexcept -> extents_type const &
	Return the generated tensor extents.
constexpr	GeneratedTensor (extents_type extents, generator_type generator)
	Construct from extents and compact generator state.
constexpr auto	mdspan () const -> mdspan_type
	Resolve a self-contained generated mdspan descriptor.
template<class... Index> requires (sizeof...(Index) == extents_type::rank())
constexpr element_type	operator[] (Index... indices) const
	Evaluate one generated tensor element.

Static Public Member Functions
static constexpr auto	backend_selector () noexcept -> backend_selector_type
	Return the host fallback selector used when no concrete storage operand is present.
static constexpr std::size_t	rank () noexcept
	Return the tensor's static rank.

Detailed Description

template<Scalar ElementType, class Extents, class Generator>
class uni20::GeneratedTensor< ElementType, Extents, Generator >

Compact read-only tensor evaluated from logical indices.

The tensor owns its extents and generator state but no dense element allocation. Its generated storage is backend-neutral and its resolved mdspan returns values by value.

Member Typedef Documentation

accessor_type

template<Scalar ElementType, class Extents , class Generator >

using uni20::GeneratedTensor< ElementType, Extents, Generator >::accessor_type = generated_accessor<element_type, extents_type, generator_type>

backend_selector_type

template<Scalar ElementType, class Extents , class Generator >

using uni20::GeneratedTensor< ElementType, Extents, Generator >::backend_selector_type = typename storage_policy::backend_selector_type

element_type

template<Scalar ElementType, class Extents , class Generator >

using uni20::GeneratedTensor< ElementType, Extents, Generator >::element_type = ElementType

extents_type

template<Scalar ElementType, class Extents , class Generator >

using uni20::GeneratedTensor< ElementType, Extents, Generator >::extents_type = Extents

generator_type

template<Scalar ElementType, class Extents , class Generator >

using uni20::GeneratedTensor< ElementType, Extents, Generator >::generator_type = Generator

index_type

template<Scalar ElementType, class Extents , class Generator >

using uni20::GeneratedTensor< ElementType, Extents, Generator >::index_type = typename extents_type::index_type

layout_type

template<Scalar ElementType, class Extents , class Generator >

using uni20::GeneratedTensor< ElementType, Extents, Generator >::layout_type = GeneratedLayout

mapping_type

template<Scalar ElementType, class Extents , class Generator >

using uni20::GeneratedTensor< ElementType, Extents, Generator >::mapping_type = typename layout_type::template mapping<extents_type>

mdspan_type

template<Scalar ElementType, class Extents , class Generator >

using uni20::GeneratedTensor< ElementType, Extents, Generator >::mdspan_type = stdex::mdspan<element_type const, extents_type, layout_type, accessor_type>

storage_policy

template<Scalar ElementType, class Extents , class Generator >

using uni20::GeneratedTensor< ElementType, Extents, Generator >::storage_policy = GeneratedStorage

value_type

template<Scalar ElementType, class Extents , class Generator >

using uni20::GeneratedTensor< ElementType, Extents, Generator >::value_type = element_type

Constructor & Destructor Documentation

GeneratedTensor()

template<Scalar ElementType, class Extents , class Generator >

constexpr uni20::GeneratedTensor< ElementType, Extents, Generator >::GeneratedTensor ( extents_type  extents, generator_type  generator  )

inlineconstexpr

Construct from extents and compact generator state.

Member Function Documentation

backend_selector()

template<Scalar ElementType, class Extents , class Generator >

static constexpr auto uni20::GeneratedTensor< ElementType, Extents, Generator >::backend_selector ( ) -> backend_selector_type

inlinestaticconstexprnoexcept

Return the host fallback selector used when no concrete storage operand is present.

extent()

template<Scalar ElementType, class Extents , class Generator >

constexpr auto uni20::GeneratedTensor< ElementType, Extents, Generator >::extent ( std::size_t  axis ) const -> index_type

inlineconstexprnoexcept

Return one generated tensor extent.

extents()

template<Scalar ElementType, class Extents , class Generator >

constexpr auto uni20::GeneratedTensor< ElementType, Extents, Generator >::extents ( ) const -> extents_type const&

inlineconstexprnoexcept

Return the generated tensor extents.

mdspan()

template<Scalar ElementType, class Extents , class Generator >

constexpr auto uni20::GeneratedTensor< ElementType, Extents, Generator >::mdspan ( ) const -> mdspan_type

inlineconstexpr

Resolve a self-contained generated mdspan descriptor.

operator[]()

template<Scalar ElementType, class Extents , class Generator >

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

constexpr element_type uni20::GeneratedTensor< ElementType, Extents, Generator >::operator[] ( Index...  indices ) const

inlineconstexpr

Evaluate one generated tensor element.

rank()

template<Scalar ElementType, class Extents , class Generator >

static constexpr std::size_t uni20::GeneratedTensor< ElementType, Extents, Generator >::rank ( )

inlinestaticconstexprnoexcept

Return the tensor's static rank.

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

• generated.hpp