[Bug c++/46246] [C++0x] Move constructor required when passing a temporary by copy, but not actually used

[a.pignotti at sssup dot it]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46246

--- Comment #1 from Alessandro Pignotti <a.pignotti at sssup dot it> 2010-10-30 
16:28:49 UTC ---
Created attachment 22209
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22209
test case that shows that the move constructor is not actually used