https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64608
--- Comment #3 from Drea Pinski <pinskia at gcc dot gnu.org> --- Note c++26 added them to the basic character set.
[Bug c++/64608] Raw string delimiter fails to allow @ or $
pinskia at gcc dot gnu.org via Gcc-bugs Wed, 08 Apr 2026 15:29:08 -0700
