Dune::ACFem::Tensor::BlockEye< BlockRank, Seq< Dimensions... >, Field > Class Template Reference

"Identity" block tensor formed of BlockRank many copies of BlockSignature multi-indices. More...

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

Collaboration diagram for Dune::ACFem::Tensor::BlockEye< BlockRank, Seq< Dimensions... >, Field >:

Public Member Functions
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 with index sequence.

Detailed Description

template<std::size_t BlockRank, std::size_t... Dimensions, class Field>
class Dune::ACFem::Tensor::BlockEye< BlockRank, Seq< Dimensions... >, Field >

"Identity" block tensor formed of BlockRank many copies of BlockSignature multi-indices.

It evaluates to 1 if the respective multi-indices coincide.

Example: BlockRank = 3, BlockSignature = <2, 4>

BlockEye(1, 2, 1, 2, 1, 2) = 1 BlockEye(0, 2, 1, 2, 1, 2) = 0 BlockEye(0, 2, 0, 2, 1, 2) = 0 BlockEye(0, 2, 0, 2, 0, 2) = 1

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

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