[Bug libstdc++/55043] [4.7 Regression] issue with nesting unordered_map containing unique_ptr into vector

[daniel.kruegler at googlemail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55043

--- Comment #25 from Daniel Krügler <daniel.kruegler at googlemail dot com> 
2013-01-16 09:43:07 UTC ---
(In reply to comment #24)
> That really feels like a hack.
It is also broken, I think. The P/R has the effect that is_copy_constructible
is now out-of-sync with is_constructible, so the difference is easily
observable.