hi::v1::recursive_iterator< ParentIt > Class Template Reference

#include <hikogui/algorithm/recursive_iterator.hpp>

Public Member Functions
constexpr	recursive_iterator (recursive_iterator const &other) noexcept=default
constexpr	recursive_iterator (recursive_iterator &&other) noexcept=default
constexpr recursive_iterator &	operator= (recursive_iterator const &other) noexcept=default
constexpr recursive_iterator &	operator= (recursive_iterator &&other) noexcept=default
constexpr	recursive_iterator (parent_iterator parent_it, parent_iterator parent_it_end, child_iterator child_it) noexcept
	Create an iterator at an element inside a child container.
constexpr	recursive_iterator (parent_iterator parent_it, parent_iterator parent_it_end) noexcept
	Create a begin iterator at the first child's first element.
constexpr	recursive_iterator (parent_iterator parent_it_end) noexcept
	Create an end iterator one beyond the last child.
constexpr parent_iterator	parent () const noexcept
	Get the current parent iterator.
constexpr child_iterator	child () const noexcept
	Get the current child iterator.
constexpr bool	at_end () const noexcept
	Check if the iterator is at end.
constexpr reference	operator* () const noexcept
constexpr pointer	operator-> () const noexcept
constexpr reference	operator[] (std::size_t i) const noexcept
constexpr recursive_iterator &	operator++ () noexcept
constexpr recursive_iterator &	operator-- () noexcept
constexpr recursive_iterator	operator++ (int) noexcept
constexpr recursive_iterator	operator-- (int) noexcept
constexpr recursive_iterator &	operator+= (difference_type rhs) noexcept
constexpr recursive_iterator &	operator-= (difference_type rhs) noexcept

Friends
constexpr friend bool	operator== (recursive_iterator const &lhs, recursive_iterator const &rhs) noexcept
constexpr friend std::strong_ordering	operator<=> (recursive_iterator const &lhs, recursive_iterator const &rhs) noexcept
constexpr friend recursive_iterator	operator+ (recursive_iterator lhs, difference_type rhs) noexcept
constexpr friend recursive_iterator	operator- (recursive_iterator lhs, difference_type rhs) noexcept
constexpr friend recursive_iterator	operator+ (difference_type lhs, recursive_iterator rhs) noexcept
constexpr friend difference_type	operator- (recursive_iterator const &lhs, recursive_iterator const &rhs) noexcept

Detailed Description

template<typename ParentIt>
class hi::v1::recursive_iterator< ParentIt >

An iterator which recursively iterates through nested containers.

Currently only recurses through two levels of containers.

Constructor & Destructor Documentation

recursive_iterator() [1/3]

template<typename ParentIt >

constexpr hi::v1::recursive_iterator< ParentIt >::recursive_iterator ( parent_iterator parent_it, parent_iterator parent_it_end, child_iterator child_it )

inlineconstexprnoexcept

Create an iterator at an element inside a child container.

recursive_iterator() [2/3]

template<typename ParentIt >

constexpr hi::v1::recursive_iterator< ParentIt >::recursive_iterator ( parent_iterator parent_it, parent_iterator parent_it_end )

inlineconstexprnoexcept

Create a begin iterator at the first child's first element.

recursive_iterator() [3/3]

template<typename ParentIt >

constexpr hi::v1::recursive_iterator< ParentIt >::recursive_iterator ( parent_iterator parent_it_end )

inlineconstexprnoexcept

Create an end iterator one beyond the last child.

Member Function Documentation

at_end()

template<typename ParentIt >

constexpr bool hi::v1::recursive_iterator< ParentIt >::at_end ( ) const

inlineconstexprnoexcept

Check if the iterator is at end.

This iterator must maintain the parent_end value, to make sure not to dereference the parent iterator at end. This function is used to check if the iterator is at end.

Returns

True if the iterator can no longer advance.

child()

template<typename ParentIt >

constexpr child_iterator hi::v1::recursive_iterator< ParentIt >::child ( ) const

inlineconstexprnoexcept

Get the current child iterator.

It is undefined behaviour to use this function on an iterator that is at_end().

parent()

template<typename ParentIt >

constexpr parent_iterator hi::v1::recursive_iterator< ParentIt >::parent ( ) const

inlineconstexprnoexcept

Get the current parent iterator.

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

• hikogui/src/hikogui/algorithm/recursive_iterator.hpp