std::make_move_iterator
Defined in header <iterator> | ? | ? |
|---|---|---|
template< class Iterator > std::move_iterator<Iterator> make_move_iterator( const Iterator& i ); | ? | (since C++11) (until C++14) |
template< class Iterator > std::move_iterator<Iterator> make_move_iterator( Iterator i ); | ? | (since C++14) (until C++17) |
template< class Iterator > constexpr std::move_iterator<Iterator> make_move_iterator( Iterator i ); | ? | (since C++17) |
make_move_iterator是构造std::move_iterator对于给定的迭代器i从参数类型推导出的类型。
参数
i | - | input iterator to be converted to move iterator |
|---|
返回值
阿std::move_iterator可以从访问的元素中移动到i...
可能的实施
模板<class Iterator>std：：Move[医]迭代器<Iterator>制造[医]移动[医]迭代器%28 Iterator I%29{返回STD：：Move[医]迭代器<Iterator>%28i%29；}
*。
例
二次
#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';
}二次
可能的产出：
二次
v1 now holds: "one" "two" "three"
v2 now holds: "one" "two" "three"
original list now holds: "" "" ""二次
另见
move_iterator (C++11) | iterator adaptor which dereferences to an rvalue reference (class template) |
|---|---|
move (C++11) | obtains an rvalue reference (function template) |
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