std::reverse_iterator

 

C++

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Libreria di Utilità

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Algoritmi

Iteratori

Libreria matematca

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Espressioni regolari(C++11)

Operazioni atomicche(C++11)

Multithreading(C++11)

 

Biblioteca Iterator

Primitive iteratori 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
Adattatori iteratori 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
Flusso iteratori 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
Operazioni di iteratori 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)
Intervallo accesso 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

Membri funzioni 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-=

Non membri funzioni 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-

 

Elemento definito nell'header <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 iteratore è un adattatore che inverte la direzione di un iteratore dato. In altre parole, quando viene fornito un iteratore bidirezionale, std::reverse_iterator produce un nuovo iteratore che muove dalla fine all'inizio della sequenza definita dalla sottostante iteratore bidirezionale.

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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Per un r iteratore inverso costruito da un i iteratore, il &*r ==&*(i-1) relazione è sempre vero, quindi un iteratore inverso costruito da un dereferenziazioni iteratore di un past-the-end per l'ultimo elemento di una sequenza.

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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Questo è l'iteratore restituito da funzioni membro rbegin() e rend() dei contenitori della libreria standard.

Original:

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

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Membri tipi

Membro 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

Membri funzioni

(costruttore)	costruisce un nuovo adattatore iteratore 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. (metodo pubblico)
operator=	assegna un altro iteratore 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. (metodo pubblico)
base	accede l'iteratore sottostante 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. (metodo pubblico)
operator* operator->	accede alla punta-all'elemento 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. (metodo pubblico)
operator[]	ottiene rvalue riferimento all'elemento indicizzati 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. (metodo pubblico)
operator++ operator++(int) operator+= operator+ operator-- operator--(int) operator-= operator-	anticipi o decrementa l'iteratore 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. (metodo pubblico)

Membri oggetti

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(protetto)	una copia del iteratore 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.

Oltre al valore corrente del iteratore sottostante, una tipica implementazione di std::reverse_iterator contiene una copia decrementato dell'iteratore sottostante, che è usato in dereferenziazione.

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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Non membri funzioni

operator== operator!= operator< operator<= operator> operator>=	confronta i iteratori sottostanti 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. (funzione di modello)
operator+	avanza l'iteratore 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. (funzione di modello)
operator-	calcola la distanza tra due schede di iteratore 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. (funzione di modello)

Inherited from std::iterator

Member types

Membro 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

Esempio

#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

Vedi anche

iterator	l'iteratore di 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. (classe template)