On Thu, Apr 25, 2013 at 4:01 PM, Johan Tibell <johan.tibell@gmail.com> wrote:

I think you could make up a case where it is a loss. It would boil down to repeated reboxing of a value pulled out of a strict field. In practice I think it's pretty hard.

I've seen this in real-world code, though it is indeed rare in my experience.