std::reverse_iterator<Iter>::operator++,+,+=,--,-,-=

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Compiler support
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Language
Standard library
Standard library headers
Named requirements
Feature test macros(C++20)
Language support library
Concepts library(C++20)
Diagnostics library
Memory management library
Metaprogramming library(C++11)
General utilities library
Containers library
Iterators library
Ranges library(C++20)
Algorithms library
Strings library
Text processing library
Numerics library
Date and time library
Input/output library
Filesystem library(C++17)
Concurrency support library(C++11)
Execution control library(C++26)
Technical specifications
Symbols index
External libraries

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Iterator library

Iterator concepts

indirectly_readable (C++20)
indirectly_writable (C++20)
weakly_incrementable (C++20)
incrementable (C++20)
is-integer-like is-signed-integer-like (C++20)(C++20)

sentinel_for (C++20)
sized_sentinel_for (C++20)
input_iterator (C++20)
output_iterator (C++20)
input_or_output_iterator (C++20)

forward_iterator (C++20)
bidirectional_iterator (C++20)
random_access_iterator (C++20)
contiguous_iterator (C++20)

Iterator primitives

input_iterator_tagoutput_iterator_tagforward_iterator_tagbidirectional_iterator_tagrandom_access_iterator_tagcontiguous_iterator_tag

(C++20)

iter_value_titer_difference_titer_reference_titer_const_reference_titer_rvalue_reference_titer_common_reference_t

(C++20)(C++20)(C++20)(C++23)(C++20)(C++20)

iterator (deprecated in C++17)
iterator_traits
incrementable_traits (C++20)
indirectly_readable_traits (C++20)

Algorithm concepts and utilities

Indirect callable concepts

indirectly_unary_invocableindirectly_regular_unary_invocable

(C++20)(C++20)

indirect_unary_predicate (C++20)
indirect_binary_predicate (C++20)

indirect_equivalence_relation (C++20)
indirect_strict_weak_order (C++20)

Common algorithm requirements

indirectly_movable (C++20)
indirectly_movable_storable (C++20)
indirectly_copyable (C++20)

indirectly_copyable_storable (C++20)
indirectly_swappable (C++20)
indirectly_comparable (C++20)

permutable (C++20)
mergeable (C++20)
sortable (C++20)

(C++20)

(C++20)

(C++26)

reverse_iterator
make_reverse_iterator (C++14)
move_iterator (C++11)
make_move_iterator (C++11)
default_sentinel_tdefault_sentinel (C++20)(C++20)
unreachable_sentinel_tunreachable_sentinel (C++20)(C++20)

front_insert_iterator
back_insert_iterator
inserter
insert_iterator
front_inserter
back_inserter
move_sentinel (C++20)

common_iterator (C++20)
counted_iterator (C++20)
basic_const_iterator (C++23)
const_iterator (C++23)
const_sentinel (C++23)
make_const_iterator (C++23)
make_const_sentinel (C++23)

Stream iterators

istream_iterator
ostream_iterator

istreambuf_iterator
ostreambuf_iterator

Iterator customization points
ranges::iter_move (C++20)
ranges::iter_swap (C++20)

Iterator operations

advance
distance
prev (C++11)
next (C++11)

ranges::advance (C++20)
ranges::distance (C++20)
ranges::prev (C++20)
ranges::next (C++20)

Range access

begincbegin (C++11)(C++14)
rbegincrbegin (C++14)(C++14)

endcend (C++11)(C++14)
rendcrend (C++14)(C++14)

sizessize (C++17)(C++20)
empty (C++17)
data (C++17)

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std::reverse_iterator

Member functions
reverse_iterator::reverse_iterator
reverse_iterator::operator=
reverse_iterator::base
reverse_iterator::operator*reverse_iterator::operator->
reverse_iterator::operator[]
reverse_iterator::operator++reverse_iterator::operator+reverse_iterator::operator+=reverse_iterator::operator--reverse_iterator::operator-reverse_iterator::operator-=
Non-member functions
operator==operator!=operator<operator<=operator>operator>=operator<=> (C++20)
operator+
operator-
iter_move (C++20)
iter_swap (C++20)
make_reverse_iterator (C++14)

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reverse_iterator& operator++();	(1)	(constexpr since C++17)
reverse_iterator& operator--();	(2)	(constexpr since C++17)
reverse_iterator operator++(int);	(3)	(constexpr since C++17)
reverse_iterator operator--(int);	(4)	(constexpr since C++17)
reverse_iterator operator+( difference_type n)const;	(5)	(constexpr since C++17)
reverse_iterator operator-( difference_type n)const;	(6)	(constexpr since C++17)
reverse_iterator& operator+=( difference_type n);	(7)	(constexpr since C++17)
reverse_iterator& operator-=( difference_type n);	(8)	(constexpr since C++17)

Increments or decrements the underlying iterator reversely.

Overload	Equivalent to
(1)	--`current`;return*this;
(2)	++`current`;return*this;
(3)	reverse_iterator tmp=*this;--`current`;return tmp;
(4)	reverse_iterator tmp=*this;++`current`;return tmp;
(5)	return reverse_iterator(`current` - n);
(6)	return reverse_iterator(`current` + n);
(7)	`current` -= n;return*this;
(8)	`current` += n;return*this;

[edit]Parameters

position relative to current location

[edit]Return value

As described above.

[edit]Example

Run this code

#include <iostream>#include <iterator>#include <list>#include <vector> int main(){std::vector v{0,1,2,3,4};auto rv=std::reverse_iterator{v.rbegin()};std::cout<<*(++rv)<<' ';// 3std::cout<<*(--rv)<<' ';// 4std::cout<<*(rv+3)<<' ';// 1    rv+=3;std::cout<< rv[0]<<' ';// 1    rv-=3;std::cout<< rv[0]<<'\n';// 4 std::list l{5,6,7,8};auto rl=std::reverse_iterator{l.rbegin()};std::cout<<*(++rl)<<' ';// OK: 3std::cout<<*(--rl)<<'\n';// OK: 4// The following statements raise compilation error because the// underlying iterator does not model the random access iterator://  *(rl + 3) = 13;//  rl += 3;//  rl -= 3;}