"Rob Stewart" <stewart@sig.com> wrote in message news:200509161700.j8GH0nHo017101@shannonhoon.balstatdev.susq.com... It's surprising for the result type to have a less restrictive range than the inputs.
add two numbers in the 1-10 range, and you invariably end up with a number in the 2-20 range that is both more (in the low end) and less (in the high end) restrictive than the inputs i don't find that surprising at all; indeed, i wouldn't consider using a checked integral class that did not reflect that but that may just be me, since i can't afford to test at runtime something that could have been tested at compile time other people may have other considerations. which is just fine, a good library doesn't try to be everything to everybody /michael toksvig