http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55582
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-12-04 00:35:24 UTC --- (In reply to comment #0) > * let the letter 's' go by as a user-defined literal (with appropriate > comment) IMHO special cases to allow std-defined literals would make sense.