std::insert_iterator< _Container > Class Template Reference

Inheritance diagram for std::insert_iterator< _Container >:

Public Types
typedef _Container	container_type
typedef void	difference_type
typedef output_iterator_tag	iterator_category
typedef void	pointer
typedef void	reference
typedef void	value_type

Public Member Functions
	insert_iterator (_Container &__x, typename _Container::iterator __i)
insert_iterator &	operator* ()
insert_iterator &	operator++ ()
insert_iterator &	operator++ (int)
insert_iterator &	operator= (const typename _Container::value_type &__value)
insert_iterator &	operator= (typename _Container::value_type &&__value)

Protected Attributes
_Container *	container
_Container::iterator	iter

Detailed Description

template<typename _Container>
class std::insert_iterator< _Container >

Turns assignment into insertion.

These are output iterators, constructed from a container-of-T. Assigning a T to the iterator inserts it in the container at the iterator's position, rather than overwriting the value at that position.

(Sequences will actually insert a copy of the value before the iterator's position.)

Tip: Using the inserter function to create these iterators can save typing.

Definition at line 639 of file bits/stl_iterator.h.

Member Typedef Documentation

template<typename _Container>

typedef _Container std::insert_iterator< _Container >::container_type

A nested typedef for the type of whatever container you used.

Definition at line 648 of file bits/stl_iterator.h.

typedef void std::iterator< output_iterator_tag , void , void , void , void >::difference_type

inherited

Distance between iterators is represented as this type.

Definition at line 125 of file stl_iterator_base_types.h.

typedef output_iterator_tag std::iterator< output_iterator_tag , void , void , void , void >::iterator_category

inherited

One of the tag types.

Definition at line 121 of file stl_iterator_base_types.h.

typedef void std::iterator< output_iterator_tag , void , void , void , void >::pointer

inherited

This type represents a pointer-to-value_type.

Definition at line 127 of file stl_iterator_base_types.h.

typedef void std::iterator< output_iterator_tag , void , void , void , void >::reference

inherited

This type represents a reference-to-value_type.

Definition at line 129 of file stl_iterator_base_types.h.

typedef void std::iterator< output_iterator_tag , void , void , void , void >::value_type

inherited

The type "pointed to" by the iterator.

Definition at line 123 of file stl_iterator_base_types.h.

Constructor & Destructor Documentation

template<typename _Container>

std::insert_iterator< _Container >::insert_iterator ( _Container &  __x, typename _Container::iterator  __i  )

inline

The only way to create this iterator is with a container and an initial position (a normal iterator into the container).

Definition at line 654 of file bits/stl_iterator.h.

Member Function Documentation

template<typename _Container>

insert_iterator& std::insert_iterator< _Container >::operator* ( )

inline

Simply returns *this.

Definition at line 708 of file bits/stl_iterator.h.

template<typename _Container>

insert_iterator& std::insert_iterator< _Container >::operator++ ( )

inline

Simply returns *this. (This iterator does not move.)

Definition at line 713 of file bits/stl_iterator.h.

template<typename _Container>

insert_iterator& std::insert_iterator< _Container >::operator++ ( int  )

inline

Simply returns *this. (This iterator does not move.)

Definition at line 718 of file bits/stl_iterator.h.

template<typename _Container>

insert_iterator& std::insert_iterator< _Container >::operator= ( const typename _Container::value_type &  __value )

inline

Parameters

__value

An instance of whatever type container_type::const_reference is; presumably a reference-to-const T for container<T>.

Returns

This iterator, for chained operations.

This kind of iterator maintains its own position in the container. Assigning a value to the iterator will insert the value into the container at the place before the iterator.

The position is maintained such that subsequent assignments will insert values immediately after one another. For example,

// vector v contains A and Z

insert_iterator i (v, ++v.begin());
i = 1;
i = 2;
i = 3;

// vector v contains A, 1, 2, 3, and Z

Definition at line 690 of file bits/stl_iterator.h.

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

• bits/stl_iterator.h