https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120005
Nathaniel Shead <nshead at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
See Also| |https://gcc.gnu.org/bugzill
| |a/show_bug.cgi?id=119097
Status|UNCONFIRMED |NEW
Ever confirmed|0 |1
CC| |nshead at gcc dot gnu.org
Last reconfirmed| |2025-04-29
--- Comment #3 from Nathaniel Shead <nshead at gcc dot gnu.org> ---
The error is because we don't fully implement
https://eel.is/c++draft/basic.link#14.4, as constexpr functions and templates
don't fold away non-ODR usages of internal linkage objects as constant
expressions. I've not yet worked out a good way of doing this.
The reason GCC14 didn't error was because we didn't check GMF entities for
TU-local exposures at that time, but that can cause other issues. (I'd hoped
to add a way to restore this behaviour for porting but ran out of time to do
so.)
