sorted_view_no_copy_guarandee.cpp

struct S {
    int i; 
    S(int i) : i(i) {}
    int size() { return 1; }
    S(S const&) = delete; 
    S(S&&)      = default; 
}; 

int main()
{
  S s1(1), s2(2); 
  auto sv = make_sorted_view(s1, s2, S(3)); 
    
  using sv_t = decltype(sv); 
  using tuple_t = sv_t::tuple_t; 
  using tuple_t = std::tuple<S&, S&, S>; 
}