https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78986
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-09-24
CC| |msebor at gcc dot gnu.org
Summary|template inner classes are |[7/8/9 Regression] template
|not affected by visibility |inner classes are not
|specifiers |affected by access
| |specifiers
Ever confirmed|0 |1
Known to fail| |4.8.3, 4.9.3, 5.3.0, 7.2.0,
| |8.2.0, 9.0
--- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> ---
Confirmed. The test case in comment #0 has never been diagnosed by G++. The
following slightly modified test case, however, is rejected by G++ 5 but
accepted by 6 and later.
class B { struct T {}; };
class D: B { template<typename> struct U: T {}; };
D::U<int> d;
Bisection points to r231354 as the cause of the regression:
r231354 | jason | 2015-12-06 23:35:14 -0500 (Sun, 06 Dec 2015) | 4 lines
Fix parse/no-type-defn1.C with -std=c++1z.
* parser.c (struct tentative_firewall): New.
(cp_parser_template_id, cp_parser_decltype_expr): Use it.
