https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115987
--- Comment #11 from Dan Urosu <durosu at yahoo dot com> --- 1) "We don't analyze the body of the function" unwrap_1 and unwrap_2 are functionally equivalent. Yet only unwrap_2 triggers the warning. 2) If the unwrap_2 is called from a macro, then the pragma suppression does not work. If the #pragma GCC diagnostic ignored "-Wdangling-reference" would work in cas (2) above, we could use it as a band-aid solution. PS. Also worth mentioning, if you write the non-cost equivalent of the unwrap_2 template function "T& unwrap_2(Wrapper<T>& r, FUNC&&) ", you don't get the warning.
