Stores a user-provided pointer to a parameter. More...

#include <parameter_multiaccessor.h>

Inheritance diagram for libMesh::ParameterMultiAccessor< T >:

Public Member Functions
	ParameterMultiAccessor ()

	ParameterMultiAccessor (const ParameterAccessor< T > &param_accessor)

	~ParameterMultiAccessor ()

virtual ParameterAccessor< T > &	operator= (T *) override

virtual void	set (const T &new_value) override

virtual const T &	get () const override

virtual std::unique_ptr< ParameterAccessor< T > >	clone () const override

void	push_back (const ParameterAccessor< T > &new_accessor)

std::size_t	size () const

ParameterProxy< T >	operator* ()

ConstParameterProxy< T >	operator* () const

Private Attributes
std::vector< ParameterAccessor< T > * >	_accessors

Detailed Description

template<typename T = Number>
class libMesh::ParameterMultiAccessor< T >

Stores a user-provided pointer to a parameter.

Accessor object allowing reading and modification of the independent variables in a parameter sensitivity calculation.

This is the "default" ParameterAccessor subclass: it simply stores a user-provided pointer to the parameter, and modifies the value at that location in memory.

Author: Roy Stogner

Date: 2015

Definition at line 47 of file parameter_multiaccessor.h.

Constructor & Destructor Documentation

◆ ParameterMultiAccessor() [1/2]

template<typename T = Number>

libMesh::ParameterMultiAccessor< T >::ParameterMultiAccessor ( )

inline

Constructor: no parameters attached yet

Definition at line 53 of file parameter_multiaccessor.h.

53 {}

◆ ParameterMultiAccessor() [2/2]

template<typename T = Number>

libMesh::ParameterMultiAccessor< T >::ParameterMultiAccessor ( const ParameterAccessor< T > & param_accessor )

inline

Constructor: take the first sub-accessor for the parameter

Definition at line 58 of file parameter_multiaccessor.h.

58 :

59 _accessors(1, param_accessor.clone()) {}

libMesh::ParameterMultiAccessor::_accessors

std::vector< ParameterAccessor< T > * > _accessors

Definition: parameter_multiaccessor.h:141

◆ ~ParameterMultiAccessor()

template<typename T = Number>

libMesh::ParameterMultiAccessor< T >::~ParameterMultiAccessor ( )

inline

Definition at line 64 of file parameter_multiaccessor.h.

References libMesh::ParameterMultiAccessor< T >::_accessors.

                             {
     for (auto & accessor : _accessors)
       delete accessor;
   }

Member Function Documentation

◆ clone()

template<typename T = Number>

virtual std::unique_ptr<ParameterAccessor<T> > libMesh::ParameterMultiAccessor< T >::clone ( ) const

inlineoverridevirtual

Returns: A new copy of the accessor.

Implements libMesh::ParameterAccessor< T >.

Definition at line 119 of file parameter_multiaccessor.h.

References libMesh::ParameterMultiAccessor< T >::_accessors.

   {
     ParameterMultiAccessor * pmp = new ParameterMultiAccessor<T>();
     for (auto & accessor : _accessors)
       pmp->_accessors.push_back(accessor->clone().release());
 
     return std::unique_ptr<ParameterAccessor<T>>(pmp);
   }

◆ get()

template<typename T = Number>

virtual const T& libMesh::ParameterMultiAccessor< T >::get ( ) const

inlineoverridevirtual

Getter: get the value of the parameter we access.

Implements libMesh::ParameterAccessor< T >.

Definition at line 103 of file parameter_multiaccessor.h.

References libMesh::ParameterMultiAccessor< T >::_accessors.

   {
     libmesh_assert(!_accessors.empty());
     const T & val = _accessors[0]->get();
 #ifndef NDEBUG
     // If you're already using inconsistent parameters we can't help
     // you.
     for (std::size_t i=1; i < _accessors.size(); ++i)
       libmesh_assert_equal_to(_accessors[i]->get(), val);
 #endif
     return val;
   }

◆ operator*() [1/2]

template<typename T = Number>

ParameterProxy<T> libMesh::ParameterAccessor< T >::operator* ( )

inlineinherited

Proxy: for backward compatibility, we allow codes to treat a ParameterAccessor as if it were a simple pointer-to-value. We can't safely allow "Number * n = parameter_vector[p]" to compile, but we can allow "*parameter_vector[p] += deltap" to work.

Definition at line 91 of file parameter_accessor.h.

91 { return ParameterProxy<T>(*this); }

◆ operator*() [2/2]

template<typename T = Number>

ConstParameterProxy<T> libMesh::ParameterAccessor< T >::operator* ( ) const

inlineinherited

Definition at line 93 of file parameter_accessor.h.

93 { return ConstParameterProxy<T>(*this); }

◆ operator=()

template<typename T = Number>

virtual ParameterAccessor<T>& libMesh::ParameterMultiAccessor< T >::operator= ( T * )

inlineoverridevirtual

A simple reseater won't work with a multi-accessor

Reimplemented from libMesh::ParameterAccessor< T >.

Definition at line 74 of file parameter_multiaccessor.h.

   {
     libmesh_error();
     return *this;
   }

◆ push_back()

template<typename T = Number>

void libMesh::ParameterMultiAccessor< T >::push_back ( const ParameterAccessor< T > & new_accessor )

inline

Definition at line 129 of file parameter_multiaccessor.h.

References libMesh::ParameterMultiAccessor< T >::_accessors, and libMesh::ParameterAccessor< T >::clone().

                                                              {
     _accessors.push_back(new_accessor.clone().release());
   }

◆ set()

template<typename T = Number>

virtual void libMesh::ParameterMultiAccessor< T >::set ( const T & new_value )

inlineoverridevirtual

Setter: change the value of the parameter we access.

Implements libMesh::ParameterAccessor< T >.

Definition at line 84 of file parameter_multiaccessor.h.

References libMesh::ParameterMultiAccessor< T >::_accessors.

   {
     libmesh_assert(!_accessors.empty());
 #ifndef NDEBUG
     // Compare other values to the last one we'll change
     const T & val = _accessors.back()->get();
 #endif
     for (auto & accessor : _accessors)
       {
         // If you're already using inconsistent parameters we can't
         // help you.
         libmesh_assert_equal_to(accessor->get(), val);
         accessor->set(new_value);
       }
   }