https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98933
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org --- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Have you noticed the In Kona 2019, this approach was considered too brittle, and as a result non-transient allocation was removed from the feature set. line just below that example? This is not valid C++20.