https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91609
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
Last reconfirmed| |2019-09-07
CC| |mpolacek at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
clang++ doesn't compile this, either:
$ clang++ -c 91609.C
91609.C:16:9: error: C++ requires a type specifier for all declarations
friend result;
~~~~~~ ^
91609.C:16:9: error: friends can only be classes or functions
91609.C:9:66: error: 'type' is a private member of 'traits_template<int>'
class complicated : underlying_thing<typename TraitsTemplate<T>::type> {};
^
91609.C:21:36: note: in instantiation of template class 'complicated<int,
traits_template>' requested here
traits_template<int>::result_type foo;
^
91609.C:13:8: note: implicitly declared private here
using type = T;
^
3 errors generated.
