The QConstIterator allows iteration over a container in a QVariant. More...

#include <qiterable.h>

Inheritance diagram for QConstIterator< Container >:

Collaboration diagram for QConstIterator< Container >:

Public Types
using	difference_type = qsizetype

Public Member Functions
	QConstIterator (const QIterable< Container > iterable, void iterator)
	Creates a QConstIterator to wrap iterator, operating on iterable.
bool	operator== (const QConstIterator &o) const
	Returns `true` if other points to the same item as this iterator; otherwise returns `false`.
bool	operator!= (const QConstIterator &o) const
	Returns `true` if other points to a different item than this iterator; otherwise returns `false`.
QConstIterator &	operator++ ()
	The prefix {++} operator ({++it}) advances the iterator to the next item in the container and returns an iterator to the new current item.
QConstIterator	operator++ (int)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.The postfix {++} operator ({it++}) advances the iterator to the next item in the container and returns an iterator to the previously current item.
QConstIterator &	operator-- ()
	The prefix {–} operator ({–it}) makes the preceding item current and returns an iterator to the new current item.
QConstIterator	operator-- (int)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.The postfix {–} operator ({it–}) makes the preceding item current and returns an iterator to the previously current item.
QConstIterator &	operator+= (qsizetype j)
	Advances the iterator by j items.
QConstIterator &	operator-= (qsizetype j)
	Makes the iterator go back by j items.
QConstIterator	operator+ (qsizetype j) const
	Returns an iterator to the item at j positions forward from this iterator.
QConstIterator	operator- (qsizetype j) const
	Returns an iterator to the item at j positions backward from this iterator.
qsizetype	operator- (const QConstIterator &j) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Returns the distance between the two iterators.
Public Member Functions inherited from QBaseIterator< Container >
void *	mutableIterator ()
	Returns a non-const pointer to the internal native iterator.
const void *	constIterator () const
	Returns a const pointer to the internal native iterator.
Container	metaContainer () const

Friends
QConstIterator	operator+ (qsizetype j, const QConstIterator &k)

Additional Inherited Members
Protected Member Functions inherited from QBaseIterator< Container >
	QBaseIterator ()=default
	QBaseIterator (const QIterable< Container > iterable, void iterator)
	QBaseIterator (QIterable< Container > iterable, void iterator)
	QBaseIterator (QBaseIterator &&other)
	QBaseIterator (const QBaseIterator &other)
	~QBaseIterator ()
QBaseIterator &	operator= (QBaseIterator &&other)
QBaseIterator &	operator= (const QBaseIterator &other)
QIterable< Container > *	mutableIterable () const
const QIterable< Container > *	constIterable () const
void	initIterator (const void *copy)
void	clearIterator ()

Detailed Description

template<class Container>
struct QConstIterator< Container >

The QConstIterator allows iteration over a container in a QVariant.

Since: 6.0 \inmodule QtCore

QConstIterator<Container> provides const iteration over a container, where Container is the meta-type descriptor (either QMetaSequence or QMetaAssociation) that defines the container's iteration capabilities.

See also: QIterator, QIterable

Definition at line 320 of file qiterable.h.

Member Typedef Documentation

◆ difference_type

template<class Container>

using QConstIterator< Container >::difference_type = qsizetype

Definition at line 323 of file qiterable.h.

Constructor & Destructor Documentation

◆ QConstIterator()

template<class Container>

QConstIterator< Container >::QConstIterator	(	const QIterable< Container > *	iterable,
		void *	iterator )

inlineexplicit

Creates a QConstIterator to wrap iterator, operating on iterable.

Definition at line 325 of file qiterable.h.

Member Function Documentation

◆ operator!=()

template<class Container>

bool QConstIterator< Container >::operator!= ( const QConstIterator< Container > & o ) const

inline

Returns true if other points to a different item than this iterator; otherwise returns false.

See also: operator==()

Definition at line 336 of file qiterable.h.

◆ operator+()

template<class Container>

QConstIterator QConstIterator< Container >::operator+ ( qsizetype j ) const

inline

Returns an iterator to the item at j positions forward from this iterator.

See also: operator-(), operator+=()

Definition at line 386 of file qiterable.h.

◆ operator++() [1/2]

template<class Container>

QConstIterator & QConstIterator< Container >::operator++ ( )

inline

The prefix {++} operator ({++it}) advances the iterator to the next item in the container and returns an iterator to the new current item.

Calling this function on QIterable<Container>::end() leads to undefined results.

See also: operator--()

Definition at line 342 of file qiterable.h.

◆ operator++() [2/2]

template<class Container>

QConstIterator QConstIterator< Container >::operator++ ( int )

inline

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.The postfix {++} operator ({it++}) advances the iterator to the next item in the container and returns an iterator to the previously current item.

Definition at line 348 of file qiterable.h.

◆ operator+=()

template<class Container>

QConstIterator & QConstIterator< Container >::operator+= ( qsizetype j )

inline

Advances the iterator by j items.

See also: operator-=(), operator+()

Definition at line 374 of file qiterable.h.

◆ operator-() [1/2]

template<class Container>

qsizetype QConstIterator< Container >::operator- ( const QConstIterator< Container > & j ) const

inline

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Returns the distance between the two iterators.

See also: operator+(), operator-=(), QIterable::canReverseIterate()

Definition at line 407 of file qiterable.h.

◆ operator-() [2/2]

template<class Container>

QConstIterator QConstIterator< Container >::operator- ( qsizetype j ) const

inline

Returns an iterator to the item at j positions backward from this iterator.

If the container in the QVariant does not support bi-directional iteration, calling this function leads to undefined results.

See also: operator+(), operator-=(), QIterable::canReverseIterate()

Definition at line 397 of file qiterable.h.

◆ operator--() [1/2]

template<class Container>

QConstIterator & QConstIterator< Container >::operator-- ( )

inline

The prefix {–} operator ({–it}) makes the preceding item current and returns an iterator to the new current item.

Calling this function on QIterable<Container>::begin() leads to undefined results.

If the container in the QVariant does not support bi-directional iteration, calling this function leads to undefined results.

See also: operator++(), QIterable::canReverseIterate()

Definition at line 358 of file qiterable.h.

◆ operator--() [2/2]

template<class Container>

QConstIterator QConstIterator< Container >::operator-- ( int )

inline

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.The postfix {–} operator ({it–}) makes the preceding item current and returns an iterator to the previously current item.

If the container in the QVariant does not support bi-directional iteration, calling this function leads to undefined results.

See also: QIterable::canReverseIterate()

Definition at line 364 of file qiterable.h.

◆ operator-=()

template<class Container>

QConstIterator & QConstIterator< Container >::operator-= ( qsizetype j )

inline

Makes the iterator go back by j items.

If the container in the QVariant does not support bi-directional iteration, calling this function leads to undefined results.

See also: operator+=(), operator-(), QIterable::canReverseIterate()

Definition at line 380 of file qiterable.h.

◆ operator==()

template<class Container>

bool QConstIterator< Container >::operator== ( const QConstIterator< Container > & o ) const

inline

Returns true if other points to the same item as this iterator; otherwise returns false.

See also: operator!=()

Definition at line 330 of file qiterable.h.

◆ operator+

template<class Container>

QConstIterator operator+	(	qsizetype	j,
		const QConstIterator< Container > &	k )

friend

Definition at line 412 of file qiterable.h.

The documentation for this struct was generated from the following files:

qtbase/src/corelib/kernel/qiterable.h (bc83d91d4e3575ba688d65e12860c05b3fb1dcbd)
qtbase/src/corelib/kernel/qiterable.cpp (bc83d91d4e3575ba688d65e12860c05b3fb1dcbd)

Public Types

Public Member Functions

Friends

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ difference_type

Constructor & Destructor Documentation

◆ QConstIterator()

Member Function Documentation

◆ operator!=()

◆ operator+()

◆ operator++() [1/2]

◆ operator++() [2/2]

◆ operator+=()

◆ operator-() [1/2]

◆ operator-() [2/2]

◆ operator--() [1/2]

◆ operator--() [2/2]

◆ operator-=()

◆ operator==()

Friends And Related Symbol Documentation

◆ operator+