# std::iterator< _Category, _Tp, _Distance, _Pointer, _Reference > Struct Template Reference

Inheritance diagram for std::iterator< _Category, _Tp, _Distance, _Pointer, _Reference >:

List of all members.

## Detailed Description

### template<typename _Category, typename _Tp, typename _Distance = ptrdiff_t, typename _Pointer = _Tp*, typename _Reference = _Tp&>
struct std::iterator< _Category, _Tp, _Distance, _Pointer, _Reference >

Common iterator class.

This class does nothing but define nested typedefs. Iterator classes can inherit from this class to save some work. The typedefs are then used in specializations and overloading.

In particular, there are no default implementations of requirements such as `operator++` and the like. (How could there be?)

Definition at line 110 of file stl_iterator_base_types.h.

## Public Types

- typedef _Distance difference_type
- typedef _Category iterator_category
- typedef _Pointer pointer
- typedef _Reference reference
- typedef _Tp value_type

## Member Typedef Documentation

template<typename _Category, typename _Tp, typename _Distance = ptrdiff_t, typename _Pointer = _Tp*, typename _Reference = _Tp&>

typedef _Distance std::iterator< _Category, _Tp, _Distance, _Pointer, _Reference >::difference_type

Distance between iterators is represented as this type.

Reimplemented in std::reverse_iterator< _Iterator >.

Definition at line 117 of file stl_iterator_base_types.h.

template<typename _Category, typename _Tp, typename _Distance = ptrdiff_t, typename _Pointer = _Tp*, typename _Reference = _Tp&>

typedef _Category std::iterator< _Category, _Tp, _Distance, _Pointer, _Reference >::iterator_category

One of the tag types.

Definition at line 113 of file stl_iterator_base_types.h.

template<typename _Category, typename _Tp, typename _Distance = ptrdiff_t, typename _Pointer = _Tp*, typename _Reference = _Tp&>

typedef _Pointer std::iterator< _Category, _Tp, _Distance, _Pointer, _Reference >::pointer

This type represents a pointer-to-value_type.

Reimplemented in __gnu_cxx::_Rope_const_iterator< _CharT, _Alloc >, __gnu_cxx::_Rope_iterator< _CharT, _Alloc >, std::_Bit_iterator, std::_Bit_const_iterator, and std::reverse_iterator< _Iterator >.

Definition at line 119 of file stl_iterator_base_types.h.

template<typename _Category, typename _Tp, typename _Distance = ptrdiff_t, typename _Pointer = _Tp*, typename _Reference = _Tp&>

typedef _Reference std::iterator< _Category, _Tp, _Distance, _Pointer, _Reference >::reference

This type represents a reference-to-value_type.

Reimplemented in __gnu_cxx::_Rope_const_iterator< _CharT, _Alloc >, __gnu_cxx::_Rope_iterator< _CharT, _Alloc >, std::_Bit_iterator, std::_Bit_const_iterator, and std::reverse_iterator< _Iterator >.

Definition at line 121 of file stl_iterator_base_types.h.

template<typename _Category, typename _Tp, typename _Distance = ptrdiff_t, typename _Pointer = _Tp*, typename _Reference = _Tp&>

typedef _Tp std::iterator< _Category, _Tp, _Distance, _Pointer, _Reference >::value_type

The type "pointed to" by the iterator.

Reimplemented in __gnu_cxx::sequence_buffer< _Sequence, _Buf_sz >.

Definition at line 115 of file stl_iterator_base_types.h.

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

- stl_iterator_base_types.h