[Bug c++/126828] [16/17 Regression] ICE with template type alias with NTTP and constexpr capture default reference inside a template function
"pinskia at gcc dot gnu.org via Gcc-bugs" <[email protected]>
| Newsgroups | gmane.comp.gcc.bugs |
|---|---|
| Message-ID | <[email protected]/bugzilla/> |
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126828
Drea Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords|needs-reduction |needs-bisection
Summary|[16/17 Regression] internal |[16/17 Regression] ICE with
|compiler error related to |template type alias with
|the Eigen library |NTTP and constexpr capture
| |default reference inside a
| |template function
Ever confirmed|0 |1
Last reconfirmed| |2026-08-12
Status|UNCONFIRMED |NEW
--- Comment #4 from Drea Pinski <pinskia at gcc dot gnu.org> ---
Reduced down to:
```
template <int> class a{};
template <int b> using c = a<b>;
template <int> void d() {
constexpr unsigned blocksize = 8;
[&] {
c<blocksize> g;
};
}
```