https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110343
--- Comment #3 from Ed Smith-Rowland <emsr at gcc dot gnu.org> --- Created attachment 57018 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57018&action=edit Get the raw string literal to compile. I just added the new characters to lex_raw_string and got const char *p = R"abc`@$(foobar)abc`@$"; to go.