http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50080
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-08-15 08:51:44 UTC --- You're right, but g++ doesn't claim to support everything in C++11 yet, especially not in the 4.5 release series which is nearly a year and half old, the C++0x draft changed a lot in that time.