STL-style iterator for MultiMap. More...

#include <multimap.hpp>

Public Member Functions
	MultiMapIterator ()
	Simple, dangerous constructor to allow later assignment with operator=.

template<class Tnon_const >
	MultiMapIterator (Tnon_const mi)
	Constructor to allow possibly const iterators to be assigned from possibly non-const map iterators. More...

	MultiMapIterator (Tmap_iter mi, Tlist_iter li)
	Constructor to allow specifying an exact position in map and list. More...

template<class Tnon_const >
Self &	operator= (Tnon_const mi)
	Assignment iterator like constructor with the same signature. More...

Tvalue &	operator* () const
	Dereference operator. More...

Tvalue *	operator-> () const
	Same as operator*(), but returns a pointer. More...

const Tmap_iter &	GetMapIter () const

const Tlist_iter &	GetListIter () const

bool	ListValid () const

const Tkey &	GetKey () const

Self &	operator++ ()
	Prefix increment operator. More...

Self	operator++ (int)
	Postfix increment operator. More...

Self &	operator-- ()
	Prefix decrement operator. More...

Self	operator-- (int)
	Postfix decrement operator. More...

Protected Types
typedef MultiMapIterator< Tmap_iter, Tlist_iter, Tkey, Tvalue, Tcompare >	Self

Protected Attributes
Tlist_iter	list_iter
	Iterator pointing to current position in the current list of items with equal keys.

Tmap_iter	map_iter
	Iterator pointing to the position of the current list of items with equal keys in the map.

bool	list_valid
	Flag to show that the iterator has just "walked" a step in the map. More...

Friends
class	MultiMap< Tkey, Tvalue, Tcompare >

Detailed Description

template<class Tmap_iter, class Tlist_iter, class Tkey, class Tvalue, class Tcompare>
class MultiMapIterator< Tmap_iter, Tlist_iter, Tkey, Tvalue, Tcompare >

STL-style iterator for MultiMap.

Template Parameters

Tmap_iter	Iterator type for the map in the MultiMap.
Tlist_iter	Iterator type for the lists in the MultiMap.
Tkey	Key type of the MultiMap.
Tvalue	Value type of the MultMap.
Tcompare	Comparator type for keys of the MultiMap.

Definition at line 25 of file multimap.hpp.

Constructor & Destructor Documentation

◆ MultiMapIterator() [1/2]

template<class Tmap_iter , class Tlist_iter , class Tkey , class Tvalue , class Tcompare >

template<class Tnon_const >

MultiMapIterator< Tmap_iter, Tlist_iter, Tkey, Tvalue, Tcompare >::MultiMapIterator ( Tnon_const mi )

inline

Constructor to allow possibly const iterators to be assigned from possibly non-const map iterators.

You can assign end() like this.

Template Parameters

Tnon_const Iterator type assignable to Tmap_iter (which might be const).

Parameters

mi	One such iterator.

Definition at line 57 of file multimap.hpp.

◆ MultiMapIterator() [2/2]

template<class Tmap_iter , class Tlist_iter , class Tkey , class Tvalue , class Tcompare >

MultiMapIterator< Tmap_iter, Tlist_iter, Tkey, Tvalue, Tcompare >::MultiMapIterator	(	Tmap_iter	mi,
		Tlist_iter	li
	)

inline

Constructor to allow specifying an exact position in map and list.

You cannot construct end() like this as the constructor will actually check li and mi->second for list_valid.

Parameters

mi	Iterator in the map.
li	Iterator in the list.

Definition at line 66 of file multimap.hpp.

Member Function Documentation

◆ operator*()

template<class Tmap_iter , class Tlist_iter , class Tkey , class Tvalue , class Tcompare >

Tvalue& MultiMapIterator< Tmap_iter, Tlist_iter, Tkey, Tvalue, Tcompare >::operator* ( ) const

inline

Dereference operator.

Works just like usual STL operator*() on various containers. Doesn't do a lot of checks for sanity, just like STL.

Returns: The value associated with the item this iterator points to.

Definition at line 90 of file multimap.hpp.

◆ operator++() [1/2]

template<class Tmap_iter , class Tlist_iter , class Tkey , class Tvalue , class Tcompare >

Self& MultiMapIterator< Tmap_iter, Tlist_iter, Tkey, Tvalue, Tcompare >::operator++ ( )

inline

Prefix increment operator.

Increment the iterator and set it to the next item in the MultiMap. This either increments the list iterator or the map iterator and sets list_valid accordingly.

Returns: This iterator after incrementing.

Definition at line 122 of file multimap.hpp.

References MultiMapIterator< Tmap_iter, Tlist_iter, Tkey, Tvalue, Tcompare >::map_iter.

Referenced by MultiMapIterator< Tmap_iter, Tlist_iter, Tkey, Tvalue, Tcompare >::operator++().

◆ operator++() [2/2]

template<class Tmap_iter , class Tlist_iter , class Tkey , class Tvalue , class Tcompare >

Self MultiMapIterator< Tmap_iter, Tlist_iter, Tkey, Tvalue, Tcompare >::operator++ ( int )

inline

Postfix increment operator.

Same as prefix increment, but return the previous state.

Parameters

dummy param to mark postfix.

Returns: This iterator before incrementing.

Definition at line 147 of file multimap.hpp.

References MultiMapIterator< Tmap_iter, Tlist_iter, Tkey, Tvalue, Tcompare >::operator++().

◆ operator--() [1/2]

template<class Tmap_iter , class Tlist_iter , class Tkey , class Tvalue , class Tcompare >

Self& MultiMapIterator< Tmap_iter, Tlist_iter, Tkey, Tvalue, Tcompare >::operator-- ( )

inline

Prefix decrement operator.

Decrement the iterator and set it to the previous item in the MultiMap.

Returns: This iterator after decrementing.

Definition at line 159 of file multimap.hpp.

References MultiMapIterator< Tmap_iter, Tlist_iter, Tkey, Tvalue, Tcompare >::map_iter.

Referenced by MultiMapIterator< Tmap_iter, Tlist_iter, Tkey, Tvalue, Tcompare >::operator--().

◆ operator--() [2/2]

template<class Tmap_iter , class Tlist_iter , class Tkey , class Tvalue , class Tcompare >

Self MultiMapIterator< Tmap_iter, Tlist_iter, Tkey, Tvalue, Tcompare >::operator-- ( int )

inline

Postfix decrement operator.

Same as prefix decrement, but return the previous state.

Parameters

dummy param to mark postfix.

Returns: This iterator before decrementing.

Definition at line 178 of file multimap.hpp.

References MultiMapIterator< Tmap_iter, Tlist_iter, Tkey, Tvalue, Tcompare >::operator--().

◆ operator->()

template<class Tmap_iter , class Tlist_iter , class Tkey , class Tvalue , class Tcompare >

Tvalue* MultiMapIterator< Tmap_iter, Tlist_iter, Tkey, Tvalue, Tcompare >::operator-> ( ) const

inline

Same as operator*(), but returns a pointer.

Returns: Pointer to the value this iterator points to.

Definition at line 102 of file multimap.hpp.

◆ operator=()

template<class Tmap_iter , class Tlist_iter , class Tkey , class Tvalue , class Tcompare >

template<class Tnon_const >

Self& MultiMapIterator< Tmap_iter, Tlist_iter, Tkey, Tvalue, Tcompare >::operator= ( Tnon_const mi )

inline

Assignment iterator like constructor with the same signature.

Template Parameters

Tnon_const Iterator type assignable to Tmap_iter (which might be const).

Parameters

mi	One such iterator.

Returns: This iterator.

Definition at line 78 of file multimap.hpp.

Field Documentation

◆ list_valid

template<class Tmap_iter , class Tlist_iter , class Tkey , class Tvalue , class Tcompare >

bool MultiMapIterator< Tmap_iter, Tlist_iter, Tkey, Tvalue, Tcompare >::list_valid

protected

Flag to show that the iterator has just "walked" a step in the map.

We cannot check the current list for that as we might have reached end() of the map. In that case we'd need to set list_iter to some sort of "invalid" state, but that's impossible as operator== yields undefined behaviour if the iterators don't belong to the same list and there is no list at end(). So if we created a static empty list and an "invalid" iterator in that we could not determine if the iterator is invalid while it's valid. We can also not determine if the map iterator is valid while we don't have the map; so in the end it's easiest to just introduce an extra flag.

Definition at line 42 of file multimap.hpp.

Referenced by MultiMap< Tkey, Tvalue, Tcompare >::erase().

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

src/core/multimap.hpp

Public Member Functions

Protected Types

Protected Attributes

Friends

Detailed Description

template<class Tmap_iter, class Tlist_iter, class Tkey, class Tvalue, class Tcompare> class MultiMapIterator< Tmap_iter, Tlist_iter, Tkey, Tvalue, Tcompare >

Constructor & Destructor Documentation

◆ MultiMapIterator() [1/2]

◆ MultiMapIterator() [2/2]

Member Function Documentation

◆ operator*()

◆ operator++() [1/2]

◆ operator++() [2/2]

◆ operator--() [1/2]

◆ operator--() [2/2]

◆ operator->()

◆ operator=()

Field Documentation

◆ list_valid

template<class Tmap_iter, class Tlist_iter, class Tkey, class Tvalue, class Tcompare>
class MultiMapIterator< Tmap_iter, Tlist_iter, Tkey, Tvalue, Tcompare >