[Bug c++/58054] 11.3 Friends, example from standard not compiled

[dushistov at mail dot ru]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58054

--- Comment #3 from Evgeniy Dushistov <dushistov at mail dot ru> ---
Here history of changes of C++ standard that related to this bug:

http://wg21.cmeerw.net/cwg/issue372