std::reverse_iterator< Iterator > Class Template Reference

#include <stl_iterator.h>

Inheritance diagram for std::reverse_iterator< Iterator >:

[legend]Collaboration diagram for std::reverse_iterator< Iterator >:

[legend]List of all members.

Public Types
typedef iterator_traits< Iterator >::difference_type	difference_type
	Distance between iterators is represented as this type.
typedef iterator_traits< Iterator >::reference	reference
	This type represents a reference-to-value_type.
typedef iterator_traits< Iterator >::pointer	pointer
	This type represents a pointer-to-value_type.
typedef iterator_traits< Iterator >::iterator_category	iterator_category
	One of the tag types.
typedef iterator_traits< Iterator >::value_type	value_type
	The type "pointed to" by the iterator.
Public Member Functions
	reverse_iterator ()
	reverse_iterator (iterator_type x)
	reverse_iterator (const reverse_iterator &x)
template<typename Iter>
	reverse_iterator (const reverse_iterator< Iter > &x)
iterator_type	base () const
reference	operator * () const
pointer	operator-> () const
reverse_iterator &	operator++ ()
reverse_iterator	operator++ (int)
reverse_iterator &	operator-- ()
reverse_iterator	operator-- (int)
reverse_iterator	operator+ (difference_type n) const
reverse_iterator &	operator+= (difference_type n)
reverse_iterator	operator- (difference_type n) const
reverse_iterator &	operator-= (difference_type n)
reference	operator[] (difference_type n) const

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Detailed Description

template<typename Iterator>
class std::reverse_iterator< Iterator >

"Bidirectional and random access iterators have corresponding reverse iterator adaptors that iterate through the data structure in the opposite direction. They have the same signatures as the corresponding iterators. The fundamental relation between a reverse iterator and its corresponding iterator i is established by the identity:

      &*(reverse_iterator(i)) == &*(i - 1)

This mapping is dictated by the fact that while there is always a pointer past the end of an array, there might not be a valid pointer before the beginning of an array." [24.4.1]/1,2

Reverse iterators can be tricky and surprising at first. Their semantics make sense, however, and the trickiness is a side effect of the requirement that the iterators must be safe.

Definition at line 90 of file stl_iterator.h.

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Member Typedef Documentation

template<typename Iterator> typedef iterator_traits<Iterator>::difference_type std::reverse_iterator< Iterator >::difference_type

Distance between iterators is represented as this type. Reimplemented from std::iterator< iterator_traits< Iterator >::iterator_category, iterator_traits< Iterator >::value_type, iterator_traits< Iterator >::difference_type, iterator_traits< Iterator >::pointer, iterator_traits< Iterator >::reference >. Definition at line 103 of file stl_iterator.h.

typedef iterator_traits< Iterator >::iterator_category std::iterator< iterator_traits< Iterator >::iterator_category , iterator_traits< Iterator >::value_type , iterator_traits< Iterator >::difference_type , iterator_traits< Iterator >::pointer , iterator_traits< Iterator >::reference >::iterator_category [inherited]

One of the tag types. Definition at line 109 of file stl_iterator_base_types.h.

template<typename Iterator> typedef iterator_traits<Iterator>::pointer std::reverse_iterator< Iterator >::pointer

This type represents a pointer-to-value_type. Reimplemented from std::iterator< iterator_traits< Iterator >::iterator_category, iterator_traits< Iterator >::value_type, iterator_traits< Iterator >::difference_type, iterator_traits< Iterator >::pointer, iterator_traits< Iterator >::reference >. Definition at line 105 of file stl_iterator.h.

template<typename Iterator> typedef iterator_traits<Iterator>::reference std::reverse_iterator< Iterator >::reference

This type represents a reference-to-value_type. Reimplemented from std::iterator< iterator_traits< Iterator >::iterator_category, iterator_traits< Iterator >::value_type, iterator_traits< Iterator >::difference_type, iterator_traits< Iterator >::pointer, iterator_traits< Iterator >::reference >. Definition at line 104 of file stl_iterator.h.

typedef iterator_traits< Iterator >::value_type std::iterator< iterator_traits< Iterator >::iterator_category , iterator_traits< Iterator >::value_type , iterator_traits< Iterator >::difference_type , iterator_traits< Iterator >::pointer , iterator_traits< Iterator >::reference >::value_type [inherited]

The type "pointed to" by the iterator. Definition at line 111 of file stl_iterator_base_types.h.

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Constructor & Destructor Documentation

template<typename Iterator> std::reverse_iterator< Iterator >::reverse_iterator (   )  [inline]

The default constructor default-initializes member current. If it is a pointer, that means it is zero-initialized. Definition at line 114 of file stl_iterator.h. Referenced by std::reverse_iterator< Iterator >::operator+(), and std::reverse_iterator< Iterator >::operator-().

template<typename Iterator> std::reverse_iterator< Iterator >::reverse_iterator (  iterator_type  x  )  [inline, explicit]

This iterator will move in the opposite direction that x does. Definition at line 120 of file stl_iterator.h.

template<typename Iterator> std::reverse_iterator< Iterator >::reverse_iterator (  const reverse_iterator< Iterator > &  x  )  [inline]

The copy constructor is normal. Definition at line 125 of file stl_iterator.h.

template<typename Iterator> template<typename Iter> std::reverse_iterator< Iterator >::reverse_iterator (  const reverse_iterator< Iter > &  x  )  [inline]

A reverse_iterator across other types can be copied in the normal fashion. Definition at line 133 of file stl_iterator.h.

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Member Function Documentation

template<typename Iterator> iterator_type std::reverse_iterator< Iterator >::base (   )  const [inline]

Returns: current, the iterator used for underlying work. Definition at line 140 of file stl_iterator.h. Referenced by std::operator==().

template<typename Iterator> reference std::reverse_iterator< Iterator >::operator * (   )  const [inline]

Returns: TODO Todo: Doc me! See docs/doxygen/TODO and http://gcc.gnu.org/ml/libstdc++/2002-02/msg00003.html for more. Definition at line 149 of file stl_iterator.h. Referenced by std::reverse_iterator< Iterator >::operator->().

template<typename Iterator> reverse_iterator std::reverse_iterator< Iterator >::operator+ (  difference_type  n  )  const [inline]

Returns: TODO Todo: Doc me! See docs/doxygen/TODO and http://gcc.gnu.org/ml/libstdc++/2002-02/msg00003.html for more. Definition at line 219 of file stl_iterator.h. References std::reverse_iterator< Iterator >::reverse_iterator().

template<typename Iterator> reverse_iterator std::reverse_iterator< Iterator >::operator++ (  int   )  [inline]

Returns: TODO Todo: Doc me! See docs/doxygen/TODO and http://gcc.gnu.org/ml/libstdc++/2002-02/msg00003.html for more. Definition at line 182 of file stl_iterator.h.

template<typename Iterator> reverse_iterator& std::reverse_iterator< Iterator >::operator++ (   )  [inline]

Returns: TODO Todo: Doc me! See docs/doxygen/TODO and http://gcc.gnu.org/ml/libstdc++/2002-02/msg00003.html for more. Definition at line 170 of file stl_iterator.h.

template<typename Iterator> reverse_iterator& std::reverse_iterator< Iterator >::operator+= (  difference_type  n  )  [inline]

Returns: TODO Todo: Doc me! See docs/doxygen/TODO and http://gcc.gnu.org/ml/libstdc++/2002-02/msg00003.html for more. Definition at line 228 of file stl_iterator.h.

template<typename Iterator> reverse_iterator std::reverse_iterator< Iterator >::operator- (  difference_type  n  )  const [inline]

Returns: TODO Todo: Doc me! See docs/doxygen/TODO and http://gcc.gnu.org/ml/libstdc++/2002-02/msg00003.html for more. Definition at line 240 of file stl_iterator.h. References std::reverse_iterator< Iterator >::reverse_iterator().

template<typename Iterator> reverse_iterator std::reverse_iterator< Iterator >::operator-- (  int   )  [inline]

Returns: TODO Todo: Doc me! See docs/doxygen/TODO and http://gcc.gnu.org/ml/libstdc++/2002-02/msg00003.html for more. Definition at line 206 of file stl_iterator.h.

template<typename Iterator> reverse_iterator& std::reverse_iterator< Iterator >::operator-- (   )  [inline]

Returns: TODO Todo: Doc me! See docs/doxygen/TODO and http://gcc.gnu.org/ml/libstdc++/2002-02/msg00003.html for more. Definition at line 195 of file stl_iterator.h.

template<typename Iterator> reverse_iterator& std::reverse_iterator< Iterator >::operator-= (  difference_type  n  )  [inline]

Returns: TODO Todo: Doc me! See docs/doxygen/TODO and http://gcc.gnu.org/ml/libstdc++/2002-02/msg00003.html for more. Definition at line 249 of file stl_iterator.h.

template<typename Iterator> pointer std::reverse_iterator< Iterator >::operator-> (   )  const [inline]

Returns: TODO Todo: Doc me! See docs/doxygen/TODO and http://gcc.gnu.org/ml/libstdc++/2002-02/msg00003.html for more. Definition at line 161 of file stl_iterator.h. References std::reverse_iterator< Iterator >::operator *().

template<typename Iterator> reference std::reverse_iterator< Iterator >::operator[] (  difference_type  n  )  const [inline]

Returns: TODO Todo: Doc me! See docs/doxygen/TODO and http://gcc.gnu.org/ml/libstdc++/2002-02/msg00003.html for more. Definition at line 261 of file stl_iterator.h.

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

• stl_iterator.h

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