An implementation of DenseVector to extract a portion, not necessarly contiguos, of a vector. More...

#include <dune/fem/storage/subvector.hh>

Public Types
typedef BaseVectorImp	BaseVectorType
	Type of the base vector.

typedef IndexMapperImp	IndexMapperType
	Type of the index mapper.

typedef value_type	FieldType
	Type of vector elements.

typedef Traits::derived_type	derived_type
	type of derived vector class

typedef FieldTraits< value_type >::field_type	field_type
	export the type representing the field

typedef Traits::value_type	block_type
	export the type representing the components

typedef DenseIterator< DenseVector, value_type >	Iterator
	Iterator class for sequential access.

typedef Iterator	iterator
	typedef for stl compliant access

typedef DenseIterator< const DenseVector, const value_type >	ConstIterator
	ConstIterator class for sequential access.

typedef ConstIterator	const_iterator
	typedef for stl compliant access

Public Member Functions
	SubVector (BaseVectorType &baseVector, IndexMapperType &&indexMapper)
	Constructor.

ThisType &	operator= (const ThisType &other)
	Copy entries.

derived_type &	operator= (const value_type &k)
	Assignment operator for scalar.

DenseVector &	operator= (const DenseVector &)=default
	Assignment operator for other DenseVector of same type.

template<typename W , std::enable_if_t< std::is_assignable< value_type &, typename DenseVector< W >::value_type >::value, int > = 0>
derived_type &	operator= (const DenseVector< W > &other)
	Assignment operator for other DenseVector of different type.

value_type &	front ()
	return reference to first element

const value_type &	front () const
	return reference to first element

value_type &	back ()
	return reference to last element

const value_type &	back () const
	return reference to last element

bool	empty () const
	checks whether the container is empty

Iterator	begin ()
	begin iterator

ConstIterator	begin () const
	begin ConstIterator

Iterator	end ()
	end iterator

ConstIterator	end () const
	end ConstIterator

Iterator	beforeEnd ()

ConstIterator	beforeEnd () const

Iterator	beforeBegin ()

ConstIterator	beforeBegin () const

Iterator	find (size_type i)
	return iterator to given element or end()

ConstIterator	find (size_type i) const
	return iterator to given element or end()

derived_type &	operator+= (const DenseVector< Other > &x)
	vector space addition

std::enable_if< std::is_convertible< ValueType, value_type >::value, derived_type >::type &	operator+= (const ValueType &kk)
	vector space add scalar to all comps More...

derived_type &	operator-= (const DenseVector< Other > &x)
	vector space subtraction

std::enable_if< std::is_convertible< ValueType, value_type >::value, derived_type >::type &	operator-= (const ValueType &kk)
	vector space subtract scalar from all comps More...

derived_type	operator+ (const DenseVector< Other > &b) const
	Binary vector addition.

derived_type	operator- (const DenseVector< Other > &b) const
	Binary vector subtraction.

derived_type	operator- () const
	Vector negation.

std::enable_if< std::is_convertible< FieldType, field_type >::value, derived_type >::type &	operator*= (const FieldType &kk)
	vector space multiplication with scalar More...

std::enable_if< std::is_convertible< FieldType, field_type >::value, derived_type >::type &	operator/= (const FieldType &kk)
	vector space division by scalar More...

bool	operator== (const DenseVector< Other > &x) const
	Binary vector comparison.

bool	operator!= (const DenseVector< Other > &x) const
	Binary vector incomparison.

derived_type &	axpy (const field_type &a, const DenseVector< Other > &x)
	vector space axpy operation ( *this += a x )

PromotionTraits< field_type, typenameDenseVector< Other >::field_type >::PromotedType	operator* (const DenseVector< Other > &x) const
	indefinite vector dot product \(\left (x^T \cdot y \right)\) which corresponds to Petsc's VecTDot More...

PromotionTraits< field_type, typenameDenseVector< Other >::field_type >::PromotedType	dot (const DenseVector< Other > &x) const
	vector dot product \(\left (x^H \cdot y \right)\) which corresponds to Petsc's VecDot More...

FieldTraits< value_type >::real_type	one_norm () const
	one norm (sum over absolute values of entries)

FieldTraits< value_type >::real_type	one_norm_real () const
	simplified one norm (uses Manhattan norm for complex values)

FieldTraits< value_type >::real_type	two_norm () const
	two norm sqrt(sum over squared values of entries)

FieldTraits< value_type >::real_type	two_norm2 () const
	square of two norm (sum over squared values of entries), need for block recursion

FieldTraits< vt >::real_type	infinity_norm () const
	infinity norm (maximum of absolute values of entries)

FieldTraits< vt >::real_type	infinity_norm () const
	infinity norm (maximum of absolute values of entries)

FieldTraits< vt >::real_type	infinity_norm_real () const
	simplified infinity norm (uses Manhattan norm for complex values)

FieldTraits< vt >::real_type	infinity_norm_real () const
	simplified infinity norm (uses Manhattan norm for complex values)

size_type	N () const
	number of blocks in the vector (are of size 1 here)

size_type	dim () const
	dimension of the vector space

Static Public Attributes
static constexpr int	blocklevel
	The number of block levels we contain. This is the leaf, that is, 1.

Related Functions
(Note that these are not member functions.)
std::ostream &	operator<< (std::ostream &s, const DenseVector< SubVector< BaseVectorImp, IndexMapperImp > > &v)
	Write a DenseVector to an output stream. More...

Detailed Description

template<class BaseVectorImp, class IndexMapperImp>
class Dune::Fem::SubVector< BaseVectorImp, IndexMapperImp >

An implementation of DenseVector to extract a portion, not necessarly contiguos, of a vector.

Template Parameters

BaseVectorImp	The base vector
IndexMapperImp	The index mapper

Member Function Documentation

◆ beforeBegin() [1/2]

Iterator Dune::DenseVector< SubVector< BaseVectorImp, IndexMapperImp > >::beforeBegin ( )

inlineinherited

Returns: an iterator that is positioned before the first entry of the vector.

◆ beforeBegin() [2/2]

ConstIterator Dune::DenseVector< SubVector< BaseVectorImp, IndexMapperImp > >::beforeBegin ( ) const

inlineinherited

Returns: an iterator that is positioned before the first entry of the vector.

◆ beforeEnd() [1/2]

Iterator Dune::DenseVector< SubVector< BaseVectorImp, IndexMapperImp > >::beforeEnd ( )

inlineinherited

Returns: an iterator that is positioned before the end iterator of the vector, i.e. at the last entry.

◆ beforeEnd() [2/2]

ConstIterator Dune::DenseVector< SubVector< BaseVectorImp, IndexMapperImp > >::beforeEnd ( ) const

inlineinherited

Returns: an iterator that is positioned before the end iterator of the vector. i.e. at the last element

◆ dot()

PromotionTraits< field_type, typenameDenseVector< Other >::field_type >::PromotedType Dune::DenseVector< SubVector< BaseVectorImp, IndexMapperImp > >::dot ( const DenseVector< Other > & x ) const

inlineinherited

vector dot product \(\left (x^H \cdot y \right)\) which corresponds to Petsc's VecDot

http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Vec/VecDot.html

Parameters

x	other vector

Returns

◆ operator*()

PromotionTraits< field_type, typenameDenseVector< Other >::field_type >::PromotedType Dune::DenseVector< SubVector< BaseVectorImp, IndexMapperImp > >::operator* ( const DenseVector< Other > & x ) const

inlineinherited

indefinite vector dot product \(\left (x^T \cdot y \right)\) which corresponds to Petsc's VecTDot

http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Vec/VecTDot.html

Parameters

x	other vector

Returns

◆ operator*=()

std::enable_if< std::is_convertible< FieldType, field_type >::value, derived_type >::type & Dune::DenseVector< SubVector< BaseVectorImp, IndexMapperImp > >::operator*= ( const FieldType & kk )

inlineinherited

vector space multiplication with scalar

we use enable_if to avoid an ambiguity, if the function parameter can be converted to field_type implicitly. (see FS#1457)

The function is only enabled, if the parameter is directly convertible to field_type.

◆ operator+=()

std::enable_if< std::is_convertible< ValueType, value_type >::value, derived_type >::type & Dune::DenseVector< SubVector< BaseVectorImp, IndexMapperImp > >::operator+= ( const ValueType & kk )

inlineinherited

vector space add scalar to all comps

we use enable_if to avoid an ambiguity, if the function parameter can be converted to value_type implicitly. (see FS#1457)

The function is only enabled, if the parameter is directly convertible to value_type.

◆ operator-=()

std::enable_if< std::is_convertible< ValueType, value_type >::value, derived_type >::type & Dune::DenseVector< SubVector< BaseVectorImp, IndexMapperImp > >::operator-= ( const ValueType & kk )

inlineinherited

vector space subtract scalar from all comps

we use enable_if to avoid an ambiguity, if the function parameter can be converted to value_type implicitly. (see FS#1457)

The function is only enabled, if the parameter is directly convertible to value_type.

◆ operator/=()

std::enable_if< std::is_convertible< FieldType, field_type >::value, derived_type >::type & Dune::DenseVector< SubVector< BaseVectorImp, IndexMapperImp > >::operator/= ( const FieldType & kk )

inlineinherited

vector space division by scalar

we use enable_if to avoid an ambiguity, if the function parameter can be converted to field_type implicitly. (see FS#1457)

The function is only enabled, if the parameter is directly convertible to field_type.

Friends And Related Function Documentation

◆ operator<<()

std::ostream & operator<<	(	std::ostream &	s,
		const DenseVector< SubVector< BaseVectorImp, IndexMapperImp > > &	v
	)

Parameters

[in]	s	std :: ostream to write to
[in]	v	DenseVector to write

Returns: the output stream (s)

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

dune/fem/storage/subvector.hh

DUNE Distributed and Unified Numerics Environment

DUNE-FEM (unstable)

Public Types

Public Member Functions

Static Public Attributes

Related Functions

Detailed Description

Member Function Documentation

◆ beforeBegin() [1/2]

◆ beforeBegin() [2/2]

◆ beforeEnd() [1/2]

◆ beforeEnd() [2/2]

◆ dot()

◆ operator*()

◆ operator*=()

◆ operator+=()

◆ operator-=()

◆ operator/=()

Friends And Related Function Documentation

◆ operator<<()