std::reverse_iterator - Online Linux Manual Page

Section : 3
Updated : 19 Jun 2018
Source : libstdc++
NAMEstd::reverse_iterator −
SYNOPSIS
Inherits iterator< iterator_traits< _Iterator >::iterator_category, iterator_traits< _Iterator >::value_type, iterator_traits< _Iterator >::difference_type, iterator_traits< _Iterator >::pointer, iterator_traits< _Iterator >::reference >.
Public Typestypedef iterator_traits< _Iterator >::difference_type difference_type
typedef iterator_traits< _Iterator >::iterator_category iterator_category
typedef _Iterator iterator_type
typedef iterator_traits< _Iterator >::pointer pointer
typedef iterator_traits< _Iterator >::reference reference
typedef iterator_traits< _Iterator >::value_type value_type
Public Member Functionsiterator_type base () const
reference operator* () const
reverse_iterator operator+ (difference_type __n) const
reverse_iterator operator++ (int)
reverse_iterator & operator++ ()
reverse_iterator & operator+= (difference_type __n)
reverse_iterator operator- (difference_type __n) const
reverse_iterator operator-- (int)
reverse_iterator & operator-- ()
reverse_iterator & operator-= (difference_type __n)
pointer operator-> () const
reference operator[] (difference_type __n) const
template<typename _Iter > reverse_iterator (const reverse_iterator< _Iter > &__x)
reverse_iterator (const reverse_iterator &__x)
reverse_iterator (iterator_type __x)
reverse_iterator ()
Protected Attributes_Iterator current
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.
Member Typedef Documentation
template<typename _Iterator> typedef iterator_traits<_Iterator>::difference_type std::reverse_iterator< _Iterator >::difference_typeDistance 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 107 of file stl_iterator_base_types.h.
template<typename _Iterator> typedef iterator_traits<_Iterator>::pointer std::reverse_iterator< _Iterator >::pointerThis 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 >::referenceThis 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 109 of file stl_iterator_base_types.h.
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.
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.
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+(), std::operator-(), and std::operator==().
template<typename _Iterator> reference std::reverse_iterator< _Iterator >::operator* () const [inline] Returns:TODO Todo Doc me! See doc/doxygen/TODO and http://gcc.gnu.org/ml/libstdc++/2002-02/msg00003.html for more. Definition at line 149 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 doc/doxygen/TODO and http://gcc.gnu.org/ml/libstdc++/2002-02/msg00003.html for more. Definition at line 220 of file stl_iterator.h.
template<typename _Iterator> reverse_iterator std::reverse_iterator< _Iterator >::operator++ (int) [inline] Returns:TODO Todo Doc me! See doc/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 doc/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 doc/doxygen/TODO and http://gcc.gnu.org/ml/libstdc++/2002-02/msg00003.html for more. Definition at line 229 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 doc/doxygen/TODO and http://gcc.gnu.org/ml/libstdc++/2002-02/msg00003.html for more. Definition at line 241 of file stl_iterator.h.
template<typename _Iterator> reverse_iterator std::reverse_iterator< _Iterator >::operator-- (int) [inline] Returns:TODO Todo Doc me! See doc/doxygen/TODO and http://gcc.gnu.org/ml/libstdc++/2002-02/msg00003.html for more. Definition at line 207 of file stl_iterator.h.
template<typename _Iterator> reverse_iterator& std::reverse_iterator< _Iterator >::operator-- () [inline] Returns:TODO Todo Doc me! See doc/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 doc/doxygen/TODO and http://gcc.gnu.org/ml/libstdc++/2002-02/msg00003.html for more. Definition at line 250 of file stl_iterator.h.
template<typename _Iterator> pointer std::reverse_iterator< _Iterator >::operator-> () const [inline] Returns:TODO Todo Doc me! See doc/doxygen/TODO and http://gcc.gnu.org/ml/libstdc++/2002-02/msg00003.html for more. Definition at line 161 of file stl_iterator.h.
template<typename _Iterator> reference std::reverse_iterator< _Iterator >::operator[] (difference_type __n) const [inline] Returns:TODO Todo Doc me! See doc/doxygen/TODO and http://gcc.gnu.org/ml/libstdc++/2002-02/msg00003.html for more. Definition at line 262 of file stl_iterator.h.
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