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    std::move_iterator

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    <metanoindex/>

     
    C++
     
    Bibliothque Iterator
    Primitives Iterator
    Original:
    Iterator primitives
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    iterator_traits
    input_iterator_tag
    output_iterator_tag
    forward_iterator_tag
    bidirectional_iterator_tag
    random_access_iterator_tag
    iterator
    Adaptateurs Iterator
    Original:
    Iterator adaptors
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    reverse_iterator
    Itrateurs de flux
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    Stream iterators
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    istream_iterator
    ostream_iterator
    istreambuf_iterator
    ostreambuf_iterator
    Oprations Iterator
    Original:
    Iterator operations
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    advance
    distance
    prev (C++11)
    next (C++11)
    Gamme d'accs
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    Range access
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    begin (C++11)
    end (C++11)
     
    std::istream_iterator
    Les fonctions membres
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    Member functions
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    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-=
    Tiers fonctions
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    Non-member functions
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    operator==
    operator!=
    operator<
    operator>
    operator+
    operator-
     
    <tbody> </tbody>
    Dclar dans l'en-tte <iterator>
    template <class Iterator> class move_iterator
    		 (depuis C++11)
    std::move_iterator est un adaptateur itrateur qui se comporte exactement comme l'itrateur sous-jacente (qui doit tre d'au moins un InputIterator), sauf que le drfrencement convertit la valeur retourne par l'itrateur sous-jacent dans une rvalue. Si cet itrateur est utilis comme un itrateur d'entre, l'effet est que les valeurs sont dplacs d', plutt que de copier de .
    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.
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    Types de membres

    Type du membre Dfinition
    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&&

    Fonctions membres
    construit un nouvel itrateur adaptateur
    Original:
    constructs a new iterator adaptor
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    (fonction membre publique) [edit]
    assigne un autre itrateur
    Original:
    assigns another iterator
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    (fonction membre publique) [edit]
    accde l'itrateur sous-jacent
    Original:
    accesses the underlying iterator
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    (fonction membre publique) [edit]
    accde l'lment point vers
    Original:
    accesses the pointed-to element
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    (fonction membre publique) [edit]
    obtient de rfrence rvalue l'lment index
    Original:
    obtains rvalue reference to indexed element
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    (fonction membre publique) [edit]
    avances ou dcrmente l'itrateur
    Original:
    advances or decrements the iterator
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    (fonction membre publique) [edit]

    Fonctions annexes
    compare les itrateurs sous-jacents
    Original:
    compares the underlying iterators
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    (fonction gnrique) [edit]
    progrs de l'itrateur
    Original:
    advances the iterator
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    (fonction gnrique) [edit]
    calcule la distance entre deux adaptateurs itrateur
    Original:
    computes the distance between two iterator adaptors
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    (fonction gnrique) [edit]

    Exemple

    #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';
}

    Rsultat : 

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

    Voir aussi

    (C++11)
    cre un std::move_iterator de type infr partir de l'argument
    Original:
    creates a std::move_iterator of type inferred from the argument
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    (fonction gnrique) [edit]
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