template<class F, class... BoundArgs>
unspecified bind(F&& f, BoundArgs&&... bound_args);
INVOKE(fd, std::forward<V>(v), std::forward<V>(v), …, std::forward<V>(v))where the values and types of the bound arguments v, v, …, v are determined as specified below.
template<class R, class F, class... BoundArgs>
unspecified bind(F&& f, BoundArgs&&... bound_args);
INVOKE<R>(fd, std::forward<V>(v), std::forward<V>(v), …, std::forward<V>(v))where the values and types of the bound arguments v, v, …, v are determined as specified below.