std::iter_move(std::reverse_iterator)

Since C++20

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

# Declarations

friend constexpr std::iter_rvalue_reference_t<Iter>
iter_move( const std::reverse_iterator& i ) noexcept(/* see below */);

(since C++20)

# Parameters

# Return value

An rvalue reference or a prvalue temporary.

# 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{"Alpha", "Bravo", "Charlie"}, q;
 
    print("p", p), print("q", q);
 
    using RI = std::reverse_iterator<std::vector<std::string>::iterator>;
 
    for (RI iter{p.rbegin()}, rend{p.rend()}; iter != rend; ++iter)
        q.emplace_back(/* ADL */ iter_move(iter));
 
    print("p", p), print("q", q);
}

# See also