LLU::NodeValueIterator< T > Struct Template Reference

Description

template<typename T>
struct LLU::NodeValueIterator< T >

Simple proxy input iterator that goes over a DataStore and returns node values of requested type when dereferenced.

Template Parameters

T	- data node type, see LLU::NodeType namespace for supported node types

Inherits LLU::Detail::DataListIteratorPrimitive.

#include <DataList.hpp>

Public Types
using	value_type = T
	This iterator iterates over node values of type T. More...
using	reference = value_type
	NodeValueIterator is a proxy iterator and so the reference type is the same as value_type. More...
using	iterator_category = std::input_iterator_tag
using	pointer = void *
using	difference_type = mint

Public Member Functions
	NodeValueIterator (const NodeIterator< T > &it)
	Create NodeValueIterator pointing to the same node as given NodeIterator<T> More...
reference	operator* () const
	Get value of the currently pointed to node Generic node values will be converted to T if it is their actual type or an exception will be throws otherwise. More...
NodeValueIterator &	operator++ ()
	Pre-increment operator. More...
NodeValueIterator	operator++ (int)
	Post-increment operator. More...
template<typename U >
U	as () const
	Get current node value if it actually is of type U. More...

Public Attributes
GenericDataNode	node

Type aliases documentation

reference

template<typename T >

using LLU::NodeValueIterator< T >::reference = value_type

NodeValueIterator is a proxy iterator and so the reference type is the same as value_type.

value_type

template<typename T >

using LLU::NodeValueIterator< T >::value_type = T

This iterator iterates over node values of type T.

Constructor & Destructor Documentation

NodeValueIterator()

template<typename T >

LLU::NodeValueIterator< T >::NodeValueIterator ( const NodeIterator< T > &  it )

inlineexplicit

Create NodeValueIterator pointing to the same node as given NodeIterator<T>

Parameters

it	- NodeIterator<T> from which a new NodeValueIterator will be created

Member Function Documentation

as()

template<typename T >

template<typename U >

U LLU::NodeValueIterator< T >::as ( ) const

inline

Get current node value if it actually is of type U.

Only makes sense for nodes of type LLU::NodeType::Any.

Template Parameters

U	- any type from LLU::NodeType namespace

Returns

current node value of type U

operator*()

template<typename T >

reference LLU::NodeValueIterator< T >::operator* ( ) const

inline

Get value of the currently pointed to node Generic node values will be converted to T if it is their actual type or an exception will be throws otherwise.

Returns

proxy object with the value of the currently pointed to node

operator++() [1/2]

template<typename T >

NodeValueIterator& LLU::NodeValueIterator< T >::operator++ ( )

inline

Pre-increment operator.

Returns

this

operator++() [2/2]

template<typename T >

NodeValueIterator LLU::NodeValueIterator< T >::operator++ ( int  )

inline

Post-increment operator.

Returns

"old" copy of the iterator object