[Bug libstdc++/53248] std::array<T,0> doesn't work when T is not default-constructible

[daniel.kruegler at googlemail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53248

--- Comment #6 from Daniel Krügler <daniel.kruegler at googlemail dot com> 2012-05-06 18:56:05 UTC ---
(In reply to comment #5)
> By the way - I think we discussed this already, bu now I can't find anything -
> what should we take the begin() == end() == unique value exactly to mean? Don't
> tell me something like an ugly reinterpret_cast<T*>(this), please

My interpretation is that returning nullptr should be OK. I don't see any
requirement that a unique value is something that cannot be returned by any
other container (In a private communication with Howard he at least agreed with
my interpretation). If this interpretation is unsafe, it should also be
clarified by revised wording.