[Bug c++/58924] Non-member invocation of overload of operator<< when the first argument is a temporary of type std::stringstream

[daniel.kruegler at googlemail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58924

--- Comment #3 from Daniel Krügler <daniel.kruegler at googlemail dot com> ---
(In reply to Fanael from comment #1)
I agree with Fanael: It is supposed to be that way in C++11 because of the
provided stream-rvalue support via

template <class charT, class traits, class T>
basic_ostream<charT, traits>&
operator<<(basic_ostream<charT, traits>&& os, const T& x);