std::reverse_iterator

 

C++

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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_tag output_iterator_tag forward_iterator_tag bidirectional_iterator_tag random_access_iterator_tag
iterator
Adaptadores 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 Stream 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
Operaciones 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)
Rango de acceso 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

Las funciones miembro 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-=

Terceros funciones 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-

 

Defined in header <iterator>
template< class Iterator > class reverse_iterator : public std::iterator<                            typename std::iterator_traits<Iterator>::iterator_category,                            typename std::iterator_traits<Iterator>::value_type,                            typename std::iterator_traits<Iterator>::difference_type,                            typename std::iterator_traits<Iterator>::pointer,                            typename std::iterator_traits<Iterator>::reference >

std::reverse_iterator es un adaptador iterador que invierte la dirección de un iterador dado. En otras palabras, cuando se proporciona un iterador bidireccional, std::reverse_iterator produce un iterador de nuevo que se mueve desde el final hasta el principio de la secuencia definida por el iterador bidireccional subyacente .

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.

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Para un iterador inverso r construido a partir de un i iterador, el &*r == &*(i-1) relación siempre es cierto, por lo que un iterador inverso construido a partir de una desreferencia un iterador-past-the-end hasta el último elemento de una secuencia .

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.

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Este es el iterador devuelto por las funciones miembro rbegin() y rend() de los contenedores de la biblioteca estándar .

Original:

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

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Tipos de miembros

Miembro de tipo 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

Las funciones miembro

(constructor)	construye un nuevo adaptador 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. (miembro público función)
operator=	asigna otro 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. (miembro público función)
base	accede el iterador subyacente 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. (miembro público función)
operator* operator->	accede al elemento en punta-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. (miembro público función)
operator[]	obtiene rvalue referencia al 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. (miembro público función)
operator++ operator++(int) operator+= operator+ operator-- operator--(int) operator-= operator-	avances o disminuye el 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. (miembro público función)

Objetos miembros

Persona 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 (protegida)	una copia de la base de iterador () 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.

Además del valor actual del iterador subyacente, una implementación típica de std::reverse_iterator mantiene una copia de decrementa el iterador subyacente, que se utiliza en la eliminación de referencias .

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.

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Terceros funciones

operator== operator!= operator< operator<= operator> operator>=	compara los iteradores subyacentes 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. (función de plantilla)
operator+	avanza el 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. (función de plantilla)
operator-	calcula la distancia entre dos 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. (función de plantilla)

Inherited from std::iterator

Member types

Miembro de tipo 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

Ejemplo

#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';
}

Output:

OlleH

Ver también

iterator	el iterador de base 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. (clase de plantilla)