swap temporary tuples of references

Question

I\'m writing a custom iterator that, when dereferenced returns a tuple of references. Since the tuple itself is ephemeral, I don\'t think I can return a reference from oper

Answer 1

The answer I came up with was to write a tuple wrapper class:

template
struct tupleWrapper{
   std::tuple data;
   tupleWrapper(std::tuple _data) : data{_data}
   {}
   operator std::tuple () {return data;}
   std::tuple& asTuple() {return data;}
 };

template
void swap(tupleWrapper t1, tupleWrapper t2){
  std::swap(t1.data, t2.data);
}

And a get function that can be found with ADL, since the conversion operator doesn't get called when doing TAD for std::get.

template
  auto get(tupleWrapper tw)->decltype(std::get(tw.data)){
    return std::get(tw.data);
}

It's not ideal, but I think it will work well enough.