[Bug libstdc++/51981] Missing uninitialized_move() implementation?

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51981

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-01-24 16:46:12 UTC ---
Because it's non-standard