Dune::BlockVectorWindow< B, A > Class Template Reference

#include <dune/istl/bvector.hh>

Public Types
enum	{ blocklevel = B::blocklevel+1 }
	increment block level counter More...
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 type for the index access.
typedef block_vector_unmanaged< B, A >::Iterator	Iterator
	make iterators available as types
typedef block_vector_unmanaged< B, A >::ConstIterator	ConstIterator
	make iterators available as types
typedef B	value_type
	for STL compatibility
typedef B &	reference
	Type used for references.
typedef const B &	const_reference
	Type used for const references.
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
	BlockVectorWindow ()
	makes empty array
	BlockVectorWindow (B *_p, size_type _n)
	make array from given pointer and size
	BlockVectorWindow (const BlockVectorWindow &a)
	copy constructor, this has reference semantics!
BlockVectorWindow &	operator= (const BlockVectorWindow &a)
	assignment
BlockVectorWindow &	operator= (const field_type &k)
	assign from scalar
void	set (size_type _n, B *_p)
	set size and pointer
void	setsize (size_type _n)
	set size only
void	setptr (B *_p)
	set pointer only
B *	getptr ()
	get pointer
size_type	getsize ()
	get size
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
PromotionTraits< field_type, typename OtherB::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...
PromotionTraits< field_type, typename OtherB::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< ft >::real_type	infinity_norm () const
	infinity norm (maximum of absolute values of entries)
FieldTraits< ft >::real_type	infinity_norm () const
	infinity norm (maximum of absolute values of entries)
FieldTraits< ft >::real_type	infinity_norm_real () const
	simplified infinity norm (uses Manhattan norm for complex values)
FieldTraits< ft >::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)

Detailed Description

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

BlockVectorWindow adds window manipulation functions to the block_vector_unmanaged template.

This class has no memory management. It assumes that the storage for the entries of the vector is maintained outside of this class.

But you can copy objects of this class and of the base class with reference semantics.

Assignment copies the data, if the format is incompatible with

the argument an exception is thrown in debug mode.

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

This class is an implementation detail, and should not be used outside of dune-istl.

Member Enumeration Documentation

anonymous enum

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

anonymous enum

increment block level counter

Enumerator
blocklevel	The number of blocklevels we contain.

Member Function Documentation

beforeBegin() [1/2]

iterator Dune::base_array_unmanaged< B, std::allocator< B > >::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< B > >::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< B > >::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< B > >::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,typename OtherB::field_type>::PromotedType Dune::block_vector_unmanaged< B, std::allocator< B > >::dot ( const block_vector_unmanaged< OtherB, OtherA > &  y ) 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

y	other (compatible) vector

Returns

operator*()

PromotionTraits<field_type,typename OtherB::field_type>::PromotedType Dune::block_vector_unmanaged< B, std::allocator< B > >::operator* ( const block_vector_unmanaged< OtherB, OtherA > &  y ) 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

y	other (compatible) vector

Returns

---

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

• dune/istl/bvector.hh