[Bug libstdc++/50641] [c++0x] is_convertible and is_constructible incorrectly require copy constructibility

[daniel.kruegler at googlemail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50641

--- Comment #3 from Daniel Krügler <daniel.kruegler at googlemail dot com> 2011-10-07 06:46:56 UTC ---
(In reply to comment #2)
> This looks like not-a-bug to me.

This refers to the traits implementation. I believe that the core language
should consider to remove the need for the temporary that is required in
heterogeneous copy-initialization, but this is out of scope of gcc.