std::reverse_iterator

 

C++

Suporte ao Compilador

Freestanding and hosted

Linguagem

Headers da Biblioteca Standard

Requerimentos nomeados

Feature test macros (C++20)

Biblioteca de suporte de língua

Biblioteca de conceitos(C++20)

Biblioteca de diagnósticos

Biblioteca de utilitários em geral

Biblioteca de strings

Biblioteca de containers

Ranges library(C++20)

Biblioteca de iteradores

Biblioteca de algorítmos

Biblioteca numérica

Biblioteca de localizações

Biblioteca de input/output

Biblioteca de sistema de arquivo(C++17)

Biblioteca de expressões regulares(C++11)

Biblioteca de operações atômicas(C++11)

Biblioteca de suporte de thread(C++11)

Especificações Técnicas

Índice de symbolos

Bibliotecas externas

 

Biblioteca Iterator

Primitivas iterador Original: Iterator primitives The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
iterator_traits
input_iterator_tagoutput_iterator_tagforward_iterator_tagbidirectional_iterator_tagrandom_access_iterator_tag
iterator
Adaptadores de iterador Original: Iterator adaptors The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
reverse_iterator
move_iterator (C++11) back_insert_iterator front_insert_iterator insert_iterator	make_move_iterator (C++11) back_inserter front_inserter inserter
Iteradores fluxo Original: Stream iterators The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
istream_iterator
ostream_iterator
istreambuf_iterator
ostreambuf_iterator
Operações iterador Original: Iterator operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
advance
distance
prev (C++11)
next (C++11)
Variar de acesso Original: Range access The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
begin (C++11)
end (C++11)

 

std::reverse_iterator

Funções de membro Original: Member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

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-=

Não-membros funções Original: Non-member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

operator==operator!=operator<operator>

operator+

operator-

 

Definido no cabeçalho <iterator>
template<class Iterator > class reverse_iterator :publicstd::iterator<                            typenamestd::iterator_traits<Iterator>::iterator_category,                            typenamestd::iterator_traits<Iterator>::value_type,                            typenamestd::iterator_traits<Iterator>::difference_type,                            typenamestd::iterator_traits<Iterator>::pointer,                            typenamestd::iterator_traits<Iterator>::reference>

std::reverse_iterator é um adaptador iterador que inverte a direção de um iterador determinado. Em outras palavras, quando fornecido com um iterador bidirecional, std::reverse_iterator produz um novo iterador que se move a partir do fim para o princípio da sequência definida pela iterador subjacente bidireccional.

Original:

std::reverse_iterator is an iterator adaptor that reverses the direction of a given iterator. In other words, when provided with a bidirectional iterator, std::reverse_iterator produces a new iterator that moves from the end to the beginning of the sequence defined by the underlying bidirectional iterator.

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Para uma r iterador reverso construído a partir de uma i iterador, o &*r ==&*(i-1) relação é sempre verdadeiro, assim um iterador inverso construído a partir de um dereferences iterador um-passado-finais a para o último elemento de uma sequência.

Original:

For a reverse iterator r constructed from an iterator i, the relationship &*r ==&*(i-1) is always true; thus a reverse iterator constructed from a one-past-the-end iterator dereferences to the last element in a sequence.

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Este é o iterador retornado por funções de membro rbegin() e rend() dos contêineres da biblioteca padrão.

Original:

This is the iterator returned by member functions rbegin() and rend() of the standard library containers.

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Tipos de membro

Tipo de membro Original: Member type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.	Definition
iterator_type	Iterator
difference_type	std::iterator_traits<Iterator>::difference_type
pointer	std::iterator_traits<Iterator>::pointer
reference	std::iterator_traits<Iterator>::reference

Funções de membro

(constructor)	constrói um novo adaptador de iterador Original: constructs a new iterator adaptor The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (função pública membro)
operator=	atribui outro iterador Original: assigns another iterator The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (função pública membro)
base	acessa o iterador subjacente Original: accesses the underlying iterator The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (função pública membro)
operator* operator->	acessa o elemento apontou-a Original: accesses the pointed-to element The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (função pública membro)
operator[]	obtém rvalue referência ao elemento indexado Original: obtains rvalue reference to indexed element The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (função pública membro)
operator++ operator++(int) operator+= operator+ operator-- operator--(int) operator-= operator-	avanços ou diminui o iterador Original: advances or decrements the iterator The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (função pública membro)

Objetos Membros

Nome do membro Original: Member name The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.	Definition
current(protegido)	uma cópia do iterador base () Original: a copy of the base() iterator The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Para além do valor corrente do iterador subjacente, uma implementação típica do std::reverse_iterator contém uma cópia decrementado do iterador subjacente, que é usado em dereferencing.

Original:

In addition to the current value of the underlying iterator, a typical implementation of std::reverse_iterator holds a decremented copy of the underlying iterator, which is used in dereferencing.

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Não-membros funções

operator== operator!= operator< operator<= operator> operator>=	compara os iteradores subjacentes Original: compares the underlying iterators The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (modelo de função)
operator+	avança o iterador Original: advances the iterator The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (modelo de função)
operator-	calcula a distância entre dois adaptadores iterador Original: computes the distance between two iterator adaptors The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (modelo de função)

Herdado de std::iterator

Member types

Tipo de membro Original: Member type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.	Definition
value_type	std::iterator_traits<Iterator>::value_type
difference_type	std::iterator_traits<Iterator>::difference_type
pointer	std::iterator_traits<Iterator>::pointer
reference	std::iterator_traits<Iterator>::reference
iterator_category	std::iterator_traits<Iterator>::iterator_category

Exemplo

#include <iostream>#include <string>#include <iterator>   int main(){std::string s ="Hello, world"; std::reverse_iterator<std::string::iterator> r = s.rbegin(); r[7]='O';// replaces 'o' with 'O'  r +=7;// iterator now points at 'O'std::string rev(r, s.rend());std::cout<< rev <<'\n';}

Saída:

OlleH

Veja também

iterator	o iterador básica Original: the basic iterator The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (modelo de classe)