Re: [boost] rvalue ref best practices?

Mathias Gaunard wrote:

According to this rule, I should pass by value whenever I want to copy the variable anyway.

template<class T> struct foo { T t; foo(T t_) : t(t_) {} };

t( std::move( t_ ) ). In this case you can also std::forward, of course, this being a textbook example of forwarding, but then everything becomes convertible to foo, enter enable_if, and so on.