Quoting Session Announcement: Adventures in Perfect Forwarding:
Perfecting forwarding is an important C++0x technique built atop
rvalue references. It allows move semantics to be automatically
applied, even when the source and the destination of a move are
separated by intervening function calls. Common examples include
constructors and setter functions that forward arguments they receive
to the data members of the class they are initializing or setting, as
well as standard library functions like make_shared, which
“perfect-forwards” its arguments to the class constructor of whatever
object the to-be-created shared_ptr is to point to.
