/**
 * https://quuxplusone.github.io/blog/2019/02/06/arrow-proxy/
 */
#pragma once

namespace iterator::detail {
template <typename Reference> struct ArrowProxy {
  ArrowProxy(Reference r) : r(std::move(r)) {}
  Reference r;
  Reference * operator->() { return std::addressof(r); }
};

template <typename R> ArrowProxy(R r) -> ArrowProxy<R>;
}