...one of the most highly
regarded and expertly designed C++ library projects in the
world. — Herb Sutter and Andrei
Move-construct a stream from another.
stream( stream && other);
The other stream object from which the move will occur. Must have
no outstanding asynchronous operations associated with it. Following
has a valid but unspecified state where the only safe operation
is destruction, or use as the target of a move assignment.