Is there a reference_wrapper<> for rvalue references?

Question

I wonder how the following can be done

void f(string &&s) { 
  std::string i(move(s)); 
  /* other stuff */ 
} 

int main() { 
  std::string s; 
  bi         


        

Answer 1

You can use a mutable lambda object.

auto func = [=]() mutable {
    f(std::move(s));
};