http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50025
--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-08-16 16:21:37 UTC --- sorry, I meant bullets 5 and 6 in paragraph 3 the 5th bullet applies before the 6th one, and that says for a reference type a temporary is created. The 6th bullet is never reached for references. Your example with int& works because GCC doesn't implement the FDIS wording yet, according to the FDIS it should be rejected too, see http://gcc.gnu.org/ml/gcc-help/2011-07/msg00053.html this is a wording problem in the FDIS and will be core issue 1288 in the next issues list
