Dune::ACFem::Tensor::KroneckerDelta< Seq< D0, RestDims... >, Seq<>, Field > Class Template Reference

"Kronecker" tensor: evaluates to 1 for exactly one tuple of indices. More...

#include <dune/acfem/tensors/modules/kronecker.hh>

Collaboration diagram for Dune::ACFem::Tensor::KroneckerDelta< Seq< D0, RestDims... >, Seq<>, Field >:

Public Member Functions
template<class T , std::enable_if_t<(IsTupleLike< T >::value &&size< T >()==rank &&IsIntegralTuple< T >::value), int > = 0>
	KroneckerDelta (T &&tuple)
	Constructor from a given tuple-like index collection. More...
template<class... Indices, std::enable_if_t<(sizeof...(Indices) !=0 &&sizeof...(Indices)==rank &&IsIntegralPack< Indices... >::value), int > = 0>
	KroneckerDelta (Indices... indices)
	Constructor from a given index pack of lookAt() indices. More...
template<class... Dims, std::enable_if_t<(sizeof...(Dims)==rank &&IsIntegralPack< Dims... >::value), int > = 0>
FieldType	operator() (Dims... indices) const
	Insert the current view-indices at their proper positions and foward to the underlying "host" tensor.
template<std::size_t... Indices, std::enable_if_t< sizeof...(Indices)==rank, int > = 0>
decltype(auto)	operator() (Seq< Indices... >) const
	Constant access from index-sequence. More...
template<class... Indices, std::enable_if_t<((sizeof...(Indices) > 0) &&IsIntegralPack< Indices... >::value), int > = 0>
void	lookAt (Indices... indices)
	"Move" the view to the given index pack. More...
template<class T , std::enable_if_t<(IsTupleLike< T >::value), int > = 0>
void	lookAt (T &&tuple)
	"Move" pivot index to the specified values. More...
const std::array< std::size_t, rank > &	lookAt () const &
	Return the array of indices currently looking at.

Detailed Description

template<class Field, std::size_t D0, std::size_t... RestDims>
class Dune::ACFem::Tensor::KroneckerDelta< Seq< D0, RestDims... >, Seq<>, Field >

"Kronecker" tensor: evaluates to 1 for exactly one tuple of indices.

Dynamic version with runtim pivot indices.

Constructor & Destructor Documentation

KroneckerDelta() [1/2]

template<class Field , std::size_t D0, std::size_t... RestDims>

template<class T , std::enable_if_t<(IsTupleLike< T >::value &&size< T >()==rank &&IsIntegralTuple< T >::value), int > = 0>

Dune::ACFem::Tensor::KroneckerDelta< Seq< D0, RestDims... >, Seq<>, Field >::KroneckerDelta ( T &&  tuple )

inline

Constructor from a given tuple-like index collection.

Parameters

[in]	host	The host tensor providing the data.
[in]	tuple	A tuple-like index collection defining the sub-tensor to lookAt(). The size of the tuple must match the number of "defect" indices.

KroneckerDelta() [2/2]

template<class Field , std::size_t D0, std::size_t... RestDims>

template<class... Indices, std::enable_if_t<(sizeof...(Indices) !=0 &&sizeof...(Indices)==rank &&IsIntegralPack< Indices... >::value), int > = 0>

Dune::ACFem::Tensor::KroneckerDelta< Seq< D0, RestDims... >, Seq<>, Field >::KroneckerDelta ( Indices...  indices )

inline

Constructor from a given index pack of lookAt() indices.

Parameters

[in]	host	The host tensor providing the data.
[in]	indices	A pack of indices defining the pivot index for the Kronecker delta.

Member Function Documentation

lookAt() [1/2]

template<class Field , std::size_t D0, std::size_t... RestDims>

template<class... Indices, std::enable_if_t<((sizeof...(Indices) > 0) &&IsIntegralPack< Indices... >::value), int > = 0>

void Dune::ACFem::Tensor::KroneckerDelta< Seq< D0, RestDims... >, Seq<>, Field >::lookAt ( Indices...  indices )

inline

"Move" the view to the given index pack.

Parameters

[in]

indices

The index of the sub-tensor to look at.

lookAt() [2/2]

template<class Field , std::size_t D0, std::size_t... RestDims>

template<class T , std::enable_if_t<(IsTupleLike< T >::value), int > = 0>

void Dune::ACFem::Tensor::KroneckerDelta< Seq< D0, RestDims... >, Seq<>, Field >::lookAt ( T &&  tuple )

inline

"Move" pivot index to the specified values.

Parameters

[in]

tuple

A tuple or array of indices, actually everything for which ACFem::IsTupleLike return true.

References Dune::ACFem::assign().

operator()()

template<class Field , std::size_t D0, std::size_t... RestDims>

template<std::size_t... Indices, std::enable_if_t< sizeof...(Indices)==rank, int > = 0>

decltype(auto) Dune::ACFem::Tensor::KroneckerDelta< Seq< D0, RestDims... >, Seq<>, Field >::operator() ( Seq< Indices... >  ) const

inline

Constant access from index-sequence.

The runtime dyncamic version cannot optimize this.

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

• dune/acfem/tensors/modules/kronecker.hh