Method make_arg_ref

extlibs/fmt/include/fmt/format.h:2315–2318

  using arg_ref_type = arg_ref<char_type>;

  FMT_CONSTEXPR arg_ref_type make_arg_ref(int arg_id) {
    context_.check_arg_id(arg_id);
    return arg_ref_type(arg_id);
  }

  FMT_CONSTEXPR arg_ref_type make_arg_ref(auto_id) {
    return arg_ref_type(context_.next_arg_id());