iter_move (std::move_iterator)

Casts the result of dereferencing the underlying iterator to its associated rvalue reference type.

Equivalent to return std :: ranges:: iter_move ( i. base ( ) ) ; .

This function template is not visible to ordinary unqualified or qualified lookup , and can only be found by argument-dependent lookup when std:: move_iterator < Iter > is an associated class of the arguments.

Parameters

Return value

An rvalue reference or a prvalue temporary.

Complexity

Constant.

Exceptions

Example

#include <iomanip>
#include <iostream>
#include <iterator>
#include <string>
#include <vector>
 
void print(const auto& rem, const auto& v)
{
    std::cout << rem << '[' << size(v) << "] { ";
    for (char comma[]{0, ' ', 0}; const auto& s : v)
        std::cout << comma << std::quoted(s), comma[0] = ',';
    std::cout << " }\n";
}
 
int main()
{
    std::vector<std::string> p{"Andromeda", "Cassiopeia", "Phoenix"}, q;
 
    print("p", p), print("q", q);
 
    using MI = std::move_iterator<std::vector<std::string>::iterator>;
 
    for (MI first{p.begin()}, last{p.end()}; first != last; ++first)
        q.emplace_back(/* ADL */ iter_move(first));
 
    print("p", p), print("q", q);
}

p[3] { "Andromeda", "Cassiopeia", "Phoenix" }
q[0] {  }
p[3] { "", "", "" }
q[3] { "Andromeda", "Cassiopeia", "Phoenix" }

See also