On Friday, 21 November 2014 at 21:22:55 UTC, Marco Leise wrote:
Inside opIndex, the unsigned types simplify the range checks (by the compiler or explicit) by removing the need to test for < 0. At the end of the day I find myself using unsigned types much more frequently than signed types because I find it easier to keep them in check and reason about.
Yes,I think so，except in individual cases.
