30 Sep
2011
30 Sep
'11
4:35 p.m.
On Fri, Sep 30, 2011 at 12:29 PM, Andrew Sutton
Actually, every iterator (singular, initialized, pointing to viable memory or not) defines its own empty range.
No, I don't believe that's quite correct. There are lots of things one can do with iterators in a range that one cannot do with a minimally-singular iterator.
Well, two anyways: == and !=. Given that the standard doesn't allow those on singular-valued iterators, you're right. I think the standard is a little too strict, here.
More than that, you can't do any comparisons, and the only mutation is to set it to a Non-Singular value.