Namensräume
Varianten
Aktionen

std::move_iterator

Aus cppreference.com
< cpp‎ | iterator

 
 
Iterator Bibliothek
Iterator Primitiven
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
Iterator Adaptern
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
Stream-Iteratoren
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
Iterator Operationen
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)
Reichen Zugang
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::istream_iterator
Member-Funktionen
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.
move_iterator::move_iterator
move_iterator::operator=
move_iterator::base
move_iterator::operator*
move_iterator::operator->
move_iterator::operator[]
move_iterator::operator++
move_iterator::operator+
move_iterator::operator+=
move_iterator::operator--
move_iterator::operator-
move_iterator::operator-=
Non-Member-Funktionen
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 move_iterator
(seit C++11)
std::move_iterator ist ein Iterator-Adapter, der genau wie die zugrundeliegenden Iterator (welche mindestens eine InputIterator sein) verhält, wobei jedoch Dereferenzierung wandelt den Wert des zugrundeliegenden Iterator in einen R-Wert zurückgeführt. Wenn dies Iterator als Eingang Iterator verwendet wird, ist der Effekt, dass die Werte aus bewegt werden, anstatt kopiert .
Original:
std::move_iterator is an iterator adaptor which behaves exactly like the underlying iterator (which must be at least an InputIterator), except that dereferencing converts the value returned by the underlying iterator into an rvalue. If this iterator is used as an input iterator, the effect is that the values are moved from, rather than copied from.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Inhaltsverzeichnis

[Bearbeiten] Mitglied Typen

Mitglied Typ
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 Iterator
value_type std::iterator_traits<Iterator>::value_type
iterator_category std::iterator_traits<Iterator>::iterator_category
reference value_type&&

[Bearbeiten] Member-Funktionen

baut einen neuen Iterator-Adapter
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.

(öffentliche Elementfunktion) [edit]
ordnet eine andere Iterator
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.

(öffentliche Elementfunktion) [edit]
greift auf die zugrunde liegenden Iterator
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.

(öffentliche Elementfunktion) [edit]
greift auf die spitzen-to-Element
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.

(öffentliche Elementfunktion) [edit]
erhält rvalue Bezug auf indizierte Element
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.

(öffentliche Elementfunktion) [edit]
Vorschüsse oder dekrementiert den Iterator
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.

(öffentliche Elementfunktion) [edit]

[Bearbeiten] Non-Member-Funktionen

vergleicht die zugrunde liegenden Iteratoren
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.

(Funktions-Template) [edit]
Fortschritte der Iterator
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.

(Funktions-Template) [edit]
berechnet den Abstand zwischen zwei Iterator Adaptern
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.

(Funktions-Template) [edit]

[Bearbeiten] Beispiel

#include <iostream>
#include <algorithm>
#include <vector>
#include <iterator>
#include <numeric>
int main()
{
    std::vector<std::string> v{"this", "is", "an", "example"};
 
    std::cout << "Old contents of the vector: ";
    for(auto& s : v)
        std::cout << '"' << s << "\" ";
 
    typedef std::vector<std::string>::iterator iter_t;
    std::string concat = std::accumulate(
                             std::move_iterator<iter_t>(v.begin()),
                             std::move_iterator<iter_t>(v.end()),
                             std::string());  // Can be simplified with std::make_move_iterator
 
    std::cout << "\nConcatenated as string: " << concat << '\n'
              << "New contents of the vector: ";
    for(auto& s : v)
        std::cout << '"' << s << "\" ";
    std::cout << '\n';
}

Output:

Old contents of the vector: "this" "is" "an" "example"
Concatenated as string: thisisanexample
New contents of the vector: "" "" "" ""

[Bearbeiten] Siehe auch

schafft eine std::move_iterator des Typs aus dem Argument abgeleitet
Original:
creates a std::move_iterator of type inferred from the argument
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(Funktions-Template) [edit]