[Bug libstdc++/49219] [c++0x] comparing unordered containers illegally require key compare

[daniel.kruegler at googlemail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49219

Daniel Krügler <daniel.kruegler at googlemail dot com> changed:

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--- Comment #1 from Daniel Krügler <daniel.kruegler at googlemail dot com> 2011-05-29 12:02:36 UTC ---
(In reply to comment #0)
> Each of "bool xf=(x==x);" require "bool K::operator!=(K const&)const" and/or
> "bool K::operator==(K const&)const". The provided E type should be used for key
> compare.

No. Equality of unordered containers is required to use operator== of the
value_type (23.2.5 p11 of the FDIS).