Espaços nominais
Variantes
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std::move_iterator

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< cpp‎ | iterator

 
 
Biblioteca Iterator
Primitivas iterador
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
Adaptadores de iterador
Original:
Iterator adaptors
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reverse_iterator
Iteradores fluxo
Original:
Stream iterators
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istream_iterator
ostream_iterator
istreambuf_iterator
ostreambuf_iterator
Operações iterador
Original:
Iterator operations
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advance
distance
prev(C++11)
next(C++11)
Variar de acesso
Original:
Range access
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begin(C++11)
end(C++11)
 
std::istream_iterator
Funções de membro
Original:
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-=
Não-membros funções
Original:
Non-member functions
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operator==
operator!=
operator<
operator>
operator+
operator-
 
Defined in header <iterator>
template <class Iterator>
class move_iterator
(a partir do C++ 11)
std::move_iterator é um adaptador iterador que se comporta exatamente como o iterador subjacente (que deve ser de pelo menos um InputIterator), exceto que dereferencing converte o valor retornado pelo iterator subjacente em um rvalue. Se este iterador é usado como um iterador de entrada, o efeito é que os valores são movidos a partir de, em vez de copiado a partir 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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Índice

[editar] Tipos de membro

Tipo de membro
Original:
Member type
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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&&

[editar] Funções de membro

constrói um novo adaptador de iterador
Original:
constructs a new iterator adaptor
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(função pública membro) [edit]
atribui outro iterador
Original:
assigns another iterator
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(função pública membro) [edit]
acessa o iterador subjacente
Original:
accesses the underlying iterator
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(função pública membro) [edit]
acessa o elemento apontou-a
Original:
accesses the pointed-to element
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(função pública membro) [edit]
obtém rvalue referência ao elemento indexado
Original:
obtains rvalue reference to indexed element
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(função pública membro) [edit]
avanços ou diminui o iterador
Original:
advances or decrements the iterator
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(função pública membro) [edit]

[editar] Não-membros funções

compara os iteradores subjacentes
Original:
compares the underlying iterators
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(modelo de função) [edit]
avança o iterador
Original:
advances the iterator
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(modelo de função) [edit]
calcula a distância entre dois adaptadores iterador
Original:
computes the distance between two iterator adaptors
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(modelo de função) [edit]

[editar] Exemplo

#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: "" "" "" ""

[editar] Veja também

cria um std::move_iterator do tipo inferido a partir do argumento
Original:
creates a std::move_iterator of type inferred from the argument
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(modelo de função) [edit]