* Nathan Sidwell: > Is this a DR? There is, but it says something different. 8-) > This is (a) the first time I've heard of such a change, and (b) > not mentioned in C++ TC1. Please provide a reference. The change was made to 3.2(2), changing the definition of "potentially evaluated" and hence "used". I think its DR 82 and, in particular, 48.