https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47342
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed|2017-09-26 00:00:00 |2021-5-12
Severity|enhancement |normal
--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
I was about to report a new bug, but I think it's another case of this one:
template<typename T> struct S { };
template<typename T> struct X { };
template<typename T> struct S<X<T>>; // line 5
void f(S<X<int>>* s)
{
s->x;
}
This prints:
loc.C: In function 'void f(S<X<int> >*)':
loc.C:9:4: error: invalid use of incomplete type 'struct S<X<int> >'
9 | s->x;
| ^~
loc.C:1:29: note: declaration of 'struct S<X<int> >'
1 | template<typename T> struct S { };
| ^
The note shows the declaration of the primary template, which is not
incomplete.
The relevant declaration is the one on line 5.
