std::make_move_iterator - cppreference.com

De cppreference.com

Definido no cabeçalho `<iterator>`

`template< class Iterator > std::move_iterator<Iterator> make_move_iterator( const Iterator& i );`		(desde C++11)

make_move_iterator é um modelo de função de conveniência que constrói uma std::move_iterator para o i iterador determinado com o tipo de deduzida a partir do tipo do argumento.

Original:

make_move_iterator is a convenience function template that constructs a std::move_iterator for the given iterator i with the type deduced from the type of the argument.

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Parâmetros

iterador de entrada a serem convertidos para mover iterador

Original:

input iterator to be converted to move iterator

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Valor de retorno

A std::move_iterator que pode ser usado para mover os elementos de acedidos através i

Original:

A std::move_iterator which can be used to move from the elements accessed through i

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Possível implementação

template< class Iterator >
std::move_iterator<Container> make_move_iterator( const Iterator& i)
{
    return std::move_iterator<Iterator>(i);
}

Exemplo

#include <iostream>
#include <list>
#include <vector>
#include <string>
#include <iterator>
int main()
{
    std::list<std::string> s{"one", "two", "three"};

    std::vector<std::string> v1(s.begin(), s.end()); // copy

    std::vector<std::string> v2(std::make_move_iterator(s.begin()),
                                std::make_move_iterator(s.end())); // move

    std::cout << "v1 now holds: ";
    for(auto str : v1)
            std::cout << "\"" << str << "\" ";
    std::cout << "\nv2 now holds: ";
    for(auto str : v2)
            std::cout << "\"" << str << "\" ";
    std::cout << "\noriginal list now holds: ";
    for(auto str : s)
            std::cout << "\"" << str << "\" ";
    std::cout << '\n';
}

Saída:

v1 now holds: "one" "two" "three"
v2 now holds: "one" "two" "three"
original list now holds: "" "" ""

Veja também


	adaptador iterador que dereferences a uma referência de rvalue Original: iterator adaptor which dereferences to an rvalue reference The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (modelo de classe) [edit]

	obtém uma referência rvalue Original: obtains an rvalue reference The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (modelo de função) [edit]