Convenience

Utility helper classes. More...

Classes
struct	Dune::ACFem::ExtractFunctor< LocalArray, GlobalArray >
	A functor which extracts values from a global array and copies them to a local array. More...
struct	Dune::ACFem::ExtractFunctor< T *, GlobalArray >
	A functor which extracts values from a global array and copies them to a local array. More...
struct	Dune::ACFem::PairFunctor< FunctorOne, FunctorTwo >
	Generate a compound functor out of two functors. More...
struct	Dune::ACFem::TupleFunctor< Types >
	Generate a compound functor out of a tuple of functors. More...
class	Dune::ACFem::GeometryInformation< GridPart, codim >
	Export some hard-to-get-at things for geometries. More...
class	Dune::ACFem::LocalObjectFactory< GlobalObject, LocalObject >
	Define a factory for a "local object" which has a constructor which accepts a single argument, a "global object". More...
class	Dune::ACFem::LocalObjectStack< Factory, Wrapper >
	Local object stack which (hopefully) efficiently caches local objects. More...
struct	Dune::ACFem::MutableLocalObjectStorageProvider< Storage >
	Provide a writable object stack for technical reasons. More...
struct	Dune::ACFem::MutableNoStorageProvider< Global >
	Provide a writable pseudo object stack which is only a reference to the global object. More...
class	Dune::ACFem::ScopedRedirect
	A class to redirect streams. More...
struct	Dune::ACFem::SolverSelector< DiscreteFunction, Model >
	Select one appropriate (linear) solver depending on whether the model is symmetric and/or semidefinite. More...
class	Dune::ACFem::TypeString< T >
	A class constructing the name of another type. More...

Enumerations
enum class	Dune::ACFem::SolverType
	Define some symbolic constants for SolverSelector and "parse" some preprocessort defines.

Functions
template<class FunctorOne , class FunctorTwo >
PairFunctor< FunctorOne, FunctorTwo >	Dune::ACFem::makePairFunctor (FunctorOne &&func1, FunctorTwo &&func2)
	Combine two functors into one. More...
template<class... Types>
TupleFunctor< Types... >	Dune::ACFem::makeTupleFunctor (Types &&... args)
	Combine several functors into one. More...
template<class Geometry >
Geometry::ctype	Dune::ACFem::h2Estimate (const Geometry &geometry)
	Compute a rough estimate of the square of the diameter of the element's Geometry.
template<class Geometry >
Geometry::ctype	Dune::ACFem::hEstimate (const Geometry &geometry)
	Compute a rough estimate of the diameter of the element's Geometry.
template<class Intersection >
bool	Dune::ACFem::isDomainBoundary (const Intersection &intersection)
	Return true if at the global domain boundary.
template<class Intersection >
bool	Dune::ACFem::isPeriodicBoundary (const Intersection &intersection)
	Return true if at a periodic boundary. More...
template<class Intersection >
bool	Dune::ACFem::isProcessorBoundary (const Intersection &intersection)
	Retrun true if at the border to another computing note. More...
template<class Intersection >
bool	Dune::ACFem::isInterior (const Intersection &intersection)
	Return true if there is a neighbor. More...
template<class T >
std::ostream &	Dune::ACFem::operator<< (std::ostream &out, TypeString< T > &&t)
	Output operator for TypePrint tag-structure.
template<class T >
void	Dune::ACFem::prettyPrint (T &&arg, std::ostream &out=std::cout, const bool newLine=true)
	Print something which shows the type that was passed to the function. More...
template<class Int , Int I0, Int... I>
std::ostream &	Dune::ACFem::operator<< (std::ostream &out, Sequence< Int, I0, I... >)
	Print sequence.
template<bool I0, bool... I>
std::ostream &	Dune::ACFem::operator<< (std::ostream &out, BoolSequence< I0, I... >)
	Print bool-sequence.
template<typename T >
std::string	Dune::ACFem::objectToString (const T &something)
	Convert any object which has an associated output stream operator "<<" to a string, return true on success and false on failure.
template<typename T >
bool	Dune::ACFem::stringToObject (const std::string &text, T &something)
	Convert a string to any object with an associated input stream operator ">>", return true on success and false on failure.
static bool	Dune::ACFem::checkParenthesis (const std::string &name, unsigned start, unsigned end)
	Check name for correct parenthesis. More...
static void	Dune::ACFem::trimParenthesis (std::string &name)
	Remove any outer redundant parenthesis.
template<class DofMapper , int coDimension, class Functor >
void	Dune::ACFem::mapEntityHierarchy (const DofMapper &mapper, const typename DofMapper::ElementType &element, int subIndex, const std::integral_constant< int, coDimension > &dummy, Functor f)
	Iterate over the entire sub-entity hierarchy below one given sub-entity (including the given one) and call the dof-mapper on each sub-entity in turn. More...
template<class DofMapper , class Intersection , class Functor >
void	Dune::ACFem::mapEachFaceDof (const DofMapper &mapper, const Intersection &intersection, Functor f)
	Iterate over the codim-1 sub-entity hierarchy linked to the given intersection and call the dof-mapper on each sub-entity in turn. More...
template<class DofMapper , class Intersection , class LocalIndices , class GlobalIndices >
unsigned	Dune::ACFem::mapFaceDofs (const DofMapper &mapper, const Intersection &intersection, LocalIndices &localIndices, GlobalIndices &globalIndices)
	Fetch all global DoFs of the codim-1 entity intersection belongs to. More...
template<class T >
auto	Dune::ACFem::typeString (T &&t, bool stripNameSpaces=true)
	Generator for TypeString. More...

Detailed Description

Utility helper classes.

Function Documentation

checkParenthesis()

static bool Dune::ACFem::checkParenthesis ( const std::string &  name, unsigned  start, unsigned  end  )

inlinestatic

Check name for correct parenthesis.

We simply do +- book-keeping for parenthesis, if the count drops below 0 the syntax is not correct, if the count is larger than 0 at the end then the expression it is also not correct. This is only a helper in order to remove the outer-most parenthesis. Provided that the original syntax was correct, it is ok to remove the outer most enclosing parenthesis if this function returns true.

Referenced by Dune::ACFem::trimParenthesis().

isInterior()

template<class Intersection >

bool Dune::ACFem::isInterior

(

const Intersection &

intersection

)

Return true if there is a neighbor.

Note that this function will return false if there is a neighbor on another computing node, but ghost-cells are unavailable.

isPeriodicBoundary()

template<class Intersection >

bool Dune::ACFem::isPeriodicBoundary

(

const Intersection &

intersection

)

Return true if at a periodic boundary.

Note that isInterior() will then also return true.

isProcessorBoundary()

template<class Intersection >

bool Dune::ACFem::isProcessorBoundary

(

const Intersection &

intersection

)

Retrun true if at the border to another computing note.

Note that isInterior() may or may not return true int his case.

Referenced by Dune::ACFem::ParabolicEulerEstimator< OldSolutionFunction, TimeProvider, ImplicitModel, ExplicitModel, Norm >::estimateLocal().

makePairFunctor()

template<class FunctorOne , class FunctorTwo >

PairFunctor<FunctorOne, FunctorTwo> Dune::ACFem::makePairFunctor	(	FunctorOne &&	func1,
		FunctorTwo &&	func2
	)

Combine two functors into one.

Can be used like

blockMapper_.mapEach(entity, makePairFunctor(functor1, functor2));

See also makeTupleFunctor().

makeTupleFunctor()

template<class... Types>

TupleFunctor<Types...> Dune::ACFem::makeTupleFunctor

(

Types &&...

args

)

Combine several functors into one.

Can be used like

 blockMapper_.mapEach(entity, makeTupleFunctor(functor1, functor2, ..., functorN));

mapEachFaceDof()

template<class DofMapper , class Intersection , class Functor >

void Dune::ACFem::mapEachFaceDof	(	const DofMapper &	mapper,
		const Intersection &	intersection,
		Functor	f
	)

Iterate over the codim-1 sub-entity hierarchy linked to the given intersection and call the dof-mapper on each sub-entity in turn.

Parameters

[in]	mapper	The DoF-mapper to use, for example space_.blockMapper().
[in]	intersection	The intersection carrying the sub-entity information. The mapper will all DoFs attached to intersection.inside() (and all its sub-entities).
[in]	f	A Functor, generally any callable object with operator() will do (lambda will do).

Note

Also in the non-conforming case all DoFs on the sub-entity are mapped. The point is that the intersection knows the index of the codim-1 sub-entity in the bulk entity and therefore acts as a convenient parameter-transport structure here.

Referenced by Dune::ACFem::mapFaceDofs().

mapEntityHierarchy()

template<class DofMapper , int coDimension, class Functor >

void Dune::ACFem::mapEntityHierarchy	(	const DofMapper &	mapper,
		const typename DofMapper::ElementType &	element,
		int	subIndex,
		const std::integral_constant< int, coDimension > &	dummy,
		Functor	f
	)

Iterate over the entire sub-entity hierarchy below one given sub-entity (including the given one) and call the dof-mapper on each sub-entity in turn.

Parameters

[in]	mapper	The block-mapper in use.
[in]	element	The bulk (i.e. co-dimension 0) element.
[in]	subIndex	The index of the sub-element where the mapping shall occur.
[in]	dummy	Co-dimension dummy in order to enable arguemnt-dependent lookup (C++ compiler).
[in]	f	Functor or generally: callable object. Lambdas will do. The calling convention is not fixed in the type, but we expect a callable with signature f(localDof, globalDof).

Note

Side-effects as implemented by f.

mapFaceDofs()

template<class DofMapper , class Intersection , class LocalIndices , class GlobalIndices >

unsigned Dune::ACFem::mapFaceDofs	(	const DofMapper &	mapper,
		const Intersection &	intersection,
		LocalIndices &	localIndices,
		GlobalIndices &	globalIndices
	)

Fetch all global DoFs of the codim-1 entity intersection belongs to.

This function will construct an array with the global DoFs as well as the local mapping to the local DoFs of the bulk-entity.

Parameters

[in]	mapper	The DoF-mapper to use.
[in]	intersection	The intersection carrying the sub-entity information. The mapper will all DoFs attached to intersection.inside() (and all its sub-entities).
[out]	localIndices	localIndices[i] is the local DoF-number with respect to the bulk-entities basis-function set.

@parma[out] globalIndices The global index corresponding to localIndices[i].

Returns

The number of DoFs attached to the given face.

References Dune::ACFem::mapEachFaceDof().

prettyPrint()

template<class T >

void Dune::ACFem::prettyPrint	(	T &&	arg,
		std::ostream &	out = std::cout,
		const bool	newLine = true
	)

Print something which shows the type that was passed to the function.

Parameters

	arg	Dummy, unused.
[in]	out	ostream object
[in]	newLine	Print a new line after printing the type.

References Dune::ACFem::typeString().

typeString()

template<class T >

auto Dune::ACFem::typeString	(	T &&	t,
		bool	stripNameSpaces = true
	)

Generator for TypeString.

Parameters

[in]	t	An rvalue-reference of Type T. Only its type is used.
[in]	stripNameSpaces	Strip Dune::, ACFem:: and Fem:: namespace prefixes.

References Dune::ACFem::TypeString< T >::name().

Referenced by Dune::ACFem::prettyPrint().