http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54413
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-08-30 10:03:51 UTC --- Perhaps we should for i and r etc. suffixes in C++11+ first try to look it up as user-defined-literal and only if there are no corresponding operator""s, treat it as the GNU extension?
