An unmanaged vector of blocks. More...

#include <dune/istl/bvector.hh>

Public Types
typedef B::field_type	field_type
	export the type representing the field

typedef B	block_type
	export the type representing the components

typedef A	allocator_type
	export the allocator type

typedef A::size_type	size_type
	The size type for the index access.

typedef base_array_unmanaged< B, A >::iterator	Iterator
	make iterators available as types

typedef base_array_unmanaged< B, A >::const_iterator	ConstIterator
	make iterators available as types

typedef B	value_type
	for STL compatibility

typedef B	member_type
	export the type representing the components

typedef RealIterator< B >	iterator
	iterator type for sequential access

typedef RealIterator< const B >	const_iterator
	iterator class for sequential access

Public Member Functions
block_vector_unmanaged &	operator= (const field_type &k)
	Assignment from a scalar.

block_vector_unmanaged &	operator+= (const block_vector_unmanaged &y)
	vector space addition

block_vector_unmanaged &	operator-= (const block_vector_unmanaged &y)
	vector space subtraction

block_vector_unmanaged &	*operator=** (const field_type &k)
	vector space multiplication with scalar

block_vector_unmanaged &	operator/= (const field_type &k)
	vector space division by scalar

block_vector_unmanaged &	axpy (const field_type &a, const block_vector_unmanaged &y)
	vector space axpy operation

template<class OtherB , class OtherA >
PromotionTraits< field_type, typenameOtherB::field_type >::PromotedType	operator* (const block_vector_unmanaged< OtherB, OtherA > &y) const
	indefinite vector dot product \(\left (x^T \cdot y \right)\) which corresponds to Petsc's VecTDot More...

template<class OtherB , class OtherA >
PromotionTraits< field_type, typenameOtherB::field_type >::PromotedType	dot (const block_vector_unmanaged< OtherB, OtherA > &y) const
	vector dot product \(\left (x^H \cdot y \right)\) which corresponds to Petsc's VecDot More...

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

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

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

FieldTraits< field_type >::real_type	two_norm2 () const
	Square of the two-norm (the sum over the squared values of the entries)

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

FieldTraits< field_type >::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

B &	operator[] (size_type i)
	random access to blocks

const B &	operator[] (size_type i) const
	same for read only access

iterator	begin ()
	begin iterator

const_iterator	begin () const
	begin const_iterator

iterator	end ()
	end iterator

const_iterator	end () const
	end const_iterator

iterator	beforeEnd ()

const_iterator	beforeEnd () const

iterator	beforeBegin ()

const_iterator	beforeBegin () const

iterator	find (size_type i)
	random access returning iterator (end if not contained)

const_iterator	find (size_type i) const
	random access returning iterator (end if not contained)

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

Protected Member Functions
	block_vector_unmanaged ()
	make constructor protected, so only derived classes can be instantiated

Detailed Description

template<class B, class A = std::allocator>
class Dune::block_vector_unmanaged< B, A >

An unmanaged vector of blocks.

block_vector_unmanaged extends the base_array_unmanaged by vector operations such as addition and scalar multiplication. No memory management is added.

Error checking: no error checking is provided normally. Setting the compile time switch DUNE_ISTL_WITH_CHECKING enables error checking.

Member Function Documentation

◆ beforeBegin() [1/2]

iterator Dune::base_array_unmanaged< B, std::allocator >::beforeBegin ( )

inlineinherited

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

◆ beforeBegin() [2/2]

const_iterator Dune::base_array_unmanaged< B, std::allocator >::beforeBegin ( ) const

inlineinherited

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

◆ beforeEnd() [1/2]

iterator Dune::base_array_unmanaged< B, std::allocator >::beforeEnd ( )

inlineinherited

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

◆ beforeEnd() [2/2]

const_iterator Dune::base_array_unmanaged< B, std::allocator >::beforeEnd ( ) const

inlineinherited

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

◆ dot()

template<class B , class A = std::allocator>

template<class OtherB , class OtherA >

PromotionTraits< field_type, typenameOtherB::field_type >::PromotedType Dune::block_vector_unmanaged< B, A >::dot ( const block_vector_unmanaged< OtherB, OtherA > & y ) const

inline

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

y	other (compatible) vector

Returns

References DUNE_THROW, and Dune::block_vector_unmanaged< B, A >::N().

◆ operator*()

template<class B , class A = std::allocator>

template<class OtherB , class OtherA >

PromotionTraits< field_type, typenameOtherB::field_type >::PromotedType Dune::block_vector_unmanaged< B, A >::operator* ( const block_vector_unmanaged< OtherB, OtherA > & y ) const