Table< 2, T > Class Template Reference

#include <deal.II/base/table.h>

Inheritance diagram for Table< 2, T >:

Public Types
using	size_type = typename TableBase< 2, T >::size_type
Public Types inherited from TableBase< 2, T >
using	size_type = typename AlignedVector< T >::size_type

Public Member Functions
	Table ()=default
	Table (const size_type size1, const size_type size2)
template<typename InputIterator >
	Table (const size_type size1, const size_type size2, InputIterator entries, const bool C_style_indexing=true)
void	reinit (const size_type size1, const size_type size2, const bool omit_default_initialization=false)
::internal::TableBaseAccessors::Accessor< 2, T, true, 1 >	operator[] (const size_type i) const
::internal::TableBaseAccessors::Accessor< 2, T, false, 1 >	operator[] (const size_type i)
AlignedVector< T >::const_reference	operator() (const size_type i, const size_type j) const
AlignedVector< T >::reference	operator() (const size_type i, const size_type j)
AlignedVector< T >::reference	operator() (const TableIndices< 2 > &indices)
AlignedVector< T >::const_reference	operator() (const TableIndices< 2 > &indices) const
size_type	n_rows () const
size_type	n_cols () const
Public Member Functions inherited from TableBase< 2, T >
	TableBase ()=default
	TableBase (const TableIndices< N > &sizes)
	TableBase (const TableIndices< N > &sizes, InputIterator entries, const bool C_style_indexing=true)
	TableBase (const TableBase< N, T > &src)
	TableBase (const TableBase< N, T2 > &src)
	TableBase (TableBase< N, T > &&src) noexcept
	~TableBase () override=default
TableBase< N, T > &	operator= (const TableBase< N, T > &src)
TableBase< N, T > &	operator= (const TableBase< N, T2 > &src)
TableBase< N, T > &	operator= (TableBase< N, T > &&src) noexcept
bool	operator== (const TableBase< N, T > &T2) const
void	reset_values ()
void	reinit (const TableIndices< N > &new_size, const bool omit_default_initialization=false)
size_type	size (const unsigned int i) const
const TableIndices< N > &	size () const
size_type	n_elements () const
bool	empty () const
void	fill (InputIterator entries, const bool C_style_indexing=true)
void	fill (const T &value)
AlignedVector< T >::reference	operator() (const TableIndices< N > &indices)
AlignedVector< T >::const_reference	operator() (const TableIndices< N > &indices) const
void	swap (TableBase< N, T > &v)
std::size_t	memory_consumption () const
void	serialize (Archive &ar, const unsigned int version)
Public Member Functions inherited from Subscriptor
	Subscriptor ()
	Subscriptor (const Subscriptor &)
	Subscriptor (Subscriptor &&) noexcept
virtual	~Subscriptor ()
Subscriptor &	operator= (const Subscriptor &)
Subscriptor &	operator= (Subscriptor &&) noexcept
void	subscribe (const char *identifier=nullptr) const
void	unsubscribe (const char *identifier=nullptr) const
unsigned int	n_subscriptions () const
template<typename StreamType >
void	list_subscribers (StreamType &stream) const
void	list_subscribers () const
template<class Archive >
void	serialize (Archive &ar, const unsigned int version)

Protected Member Functions
AlignedVector< T >::reference	el (const size_type i, const size_type j)
AlignedVector< T >::const_reference	el (const size_type i, const size_type j) const
Protected Member Functions inherited from TableBase< 2, T >
size_type	position (const TableIndices< N > &indices) const
AlignedVector< T >::reference	el (const TableIndices< N > &indices)
AlignedVector< T >::const_reference	el (const TableIndices< N > &indices) const

Additional Inherited Members
Static Public Member Functions inherited from Subscriptor
static::ExceptionBase &	ExcInUse (int arg1, std::string arg2, std::string arg3)
static::ExceptionBase &	ExcNoSubscriber (std::string arg1, std::string arg2)
Protected Attributes inherited from TableBase< 2, T >
AlignedVector< T >	values
TableIndices< N >	table_size

Detailed Description

template<typename T>
class Table< 2, T >

A class representing a two-dimensional table, i.e. a matrix of objects (not necessarily only numbers).

For the rationale of this class, and a description of the interface, see the base class. Since this serves as the base class of the full matrix classes in this library, and to keep a minimal compatibility with a predecessor class (vector2d), some additional functions are provided.

Author

Wolfgang Bangerth, 2002

Definition at line 845 of file table.h.

Member Typedef Documentation

template<typename T >

using Table< 2, T >::size_type = typename TableBase<2, T>::size_type

Integer type used to count the number of elements in this container.

Definition at line 851 of file table.h.

Constructor & Destructor Documentation

template<typename T >

Table< 2, T >::Table ( )

default

Default constructor. Set all dimensions to zero.

template<typename T >

Table< 2, T >::Table	(	const size_type	size1,
		const size_type	size2
	)

Constructor. Pass down the given dimensions to the base class.

template<typename T >

template<typename InputIterator >

Table< 2, T >::Table	(	const size_type	size1,
		const size_type	size2,
		InputIterator	entries,
		const bool	C_style_indexing = true
	)

Constructor. Create a table with a given size and initialize it from a set of iterators.

This function is entirely equivalent to creating a table t of the given size and then calling

t.fill (entries, C_style_indexing);

on it, using the TableBase::fill() function where the arguments are explained in more detail. The point, however, is that that is only possible if the table can be changed after running the constructor, whereas calling the current constructor allows sizing and initializing an object right away so that it can be marked const.

Using this constructor, you can do things like this:

const double values[] = { 1, 2, 3, 4, 5, 6 };
const Table<2,double> t(2, 3, entries, true);

You can also initialize a table right from a file, using input iterators:

std::ifstream input ("myfile");
const Table<2,double> t(2, 3,
                        std::istream_iterator<double>(input),
                        true);

Parameters

size1	The size of this table in the first dimension.
size2	The size of this table in the second dimension.
entries	An iterator to a set of elements from which to initialize this table. It is assumed that iterator can be incremented and dereferenced a sufficient number of times to fill this table.
C_style_indexing	If true, run over elements of the table with the last index changing fastest as we dereference subsequent elements of the input range. If false, change the first index fastest.

Member Function Documentation

template<typename T >

void Table< 2, T >::reinit	(	const size_type	size1,
		const size_type	size2,
		const bool	omit_default_initialization = false
	)

Reinitialize the object. This function is mostly here for compatibility with the earlier vector2d class. Passes down to the base class by converting the arguments to the data type requested by the base class.

template<typename T >

::internal::TableBaseAccessors::Accessor<2, T, true, 1> Table< 2, T >::operator[]

(

const size_type

i

)

const

Access operator. Generate an object that accesses the requested row of this two-dimensional table. Range checks are performed.

This version of the function only allows read access.

template<typename T >

::internal::TableBaseAccessors::Accessor<2, T, false, 1> Table< 2, T >::operator[]

(

const size_type

i

)

Access operator. Generate an object that accesses the requested row of this two-dimensional table. Range checks are performed.

This version of the function allows read-write access.

template<typename T >

AlignedVector<T>::const_reference Table< 2, T >::operator()	(	const size_type	i,
		const size_type	j
	)		const

Direct access to one element of the table by specifying all indices at the same time. Range checks are performed.

This version of the function only allows read access.

template<typename T >

AlignedVector<T>::reference Table< 2, T >::operator()	(	const size_type	i,
		const size_type	j
	)

Direct access to one element of the table by specifying all indices at the same time. Range checks are performed.

This version of the function allows read-write access.

template<typename T >

AlignedVector<T>::reference Table< 2, T >::operator()

(

const TableIndices< 2 > &

indices

)

Make the corresponding operator () from the TableBase base class available also in this class.

template<typename T >

AlignedVector<T>::const_reference Table< 2, T >::operator()

(

const TableIndices< 2 > &

indices

)

const

Make the corresponding operator () from the TableBase base class available also in this class.

template<typename T >

size_type Table< 2, T >::n_rows

(

)

const

Number of rows. This function really makes only sense since we have a two-dimensional object here.

template<typename T >

size_type Table< 2, T >::n_cols

(

)

const

Number of columns. This function really makes only sense since we have a two-dimensional object here.

template<typename T >

AlignedVector<T>::reference Table< 2, T >::el ( const size_type  i, const size_type  j  )

protected

Return a read-write reference to the element (i,j).

This function does no bounds checking and is only to be used internally and in functions already checked.

These functions are mainly here for compatibility with a former implementation of these table classes for 2d arrays, then called vector2d.

template<typename T >

AlignedVector<T>::const_reference Table< 2, T >::el ( const size_type  i, const size_type  j  ) const

protected

Return the value of the element (i,j) as a read-only reference.

This function does no bounds checking and is only to be used internally and in functions already checked.

We return the requested value as a constant reference rather than by value since this object may hold data types that may be large, and we don't know here whether copying is expensive or not.

These functions are mainly here for compatibility with a former implementation of these table classes for 2d arrays, then called vector2d.

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

• deal.II/base/table.h