https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84075
Patrick Palka <ppalka at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |10.5
CC| |ppalka at gcc dot gnu.org
Summary|Template parameter not |[10/11/12/13 Regression]
|resolved: invalid |Template parameter not
|application of ‘sizeof’ to |resolved: invalid
|incomplete type |application of ‘sizeof’ to
|‘boost::serialization::U’ |incomplete type
| |‘boost::serialization::U’
--- Comment #12 from Patrick Palka <ppalka at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #11)
> (In reply to ensadc from comment #4)
> > Further reduced:
> >
> > template < int > struct b { };
> > template < typename n > struct g {
> > typedef b< sizeof(n) > l;
> > };
> > template < typename h, typename = typename g< h >::l > class aa {};
> > template < typename h, typename bz >
> > void bj(aa< h, bz >, int);
> > template < template < class > class ct > void bj(ct< class U >);
> > void f() {
> > bj(aa<int>(), 0);
> > }
> > ----
>
> Hmm, it comes with -std=c++11 and -std=c++14 but not -std=c++17.
Started to be rejected (with -std=c++17) since the introduction of
-fnew-ttp-matching r7-5537-g31bfc9b9dd65ec
