Dune::ACFem::ZeroFunctional< DiscreteFunctionSpace > Class Template Reference

This is the famous "do-nothing" functional. More...

#include <dune/acfem/operators/functionals/zerofunctional.hh>

Public Types
typedef Traits::GlobalFunctionalType	ExpressionType
	The type of the underlying expression.

Public Member Functions
template<class DFImpl >
void	coefficients (Fem::DiscreteFunctionInterface< DFImpl > &coeffs)
	Compute the basis representation, which means: do the assembling stuff.
template<class DFImpl >
RangeType	operator() (const Fem::DiscreteFunctionInterface< DFImpl > &arg) const
	Compute the value.
const ExpressionType &	expression () const
	Return a const reference to the underlying expression.
ExpressionType &	expression ()
	Return a mutable reference to the underlying expression.
ExpressionType	operator* () const
	Return a copy from of the underlying expression.

Detailed Description

template<class DiscreteFunctionSpace>
class Dune::ACFem::ZeroFunctional< DiscreteFunctionSpace >

This is the famous "do-nothing" functional.

It is used in default definitions for PDE-Models and further on to define not too unefficient ExpressionTemplates. This DiscreteLinearFunctional efficiently evaluates to zero, at global and the local level.

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

• dune/acfem/operators/functionals/zerofunctional.hh