On Tuesday, 22 January 2013 at 16:31:20 UTC, Era Scarecrow wrote:
I really wouldn't want to have to use BigInt for everything that can't overflow and then check to make sure I can fit it in my smaller variables afterwards along with the extra move. I wouldn't want to use BigInts everywhere, and long's aren't needed everywhere either.
Since D aims to emulate C in this aspect, overflow with uints is probably defined as a wrap-around (like C). In this case it seems to me the check for overflow would simply be '(a+b)<a', no need to cast to longs and BigInts and all that. Of course this may not apply to signed ints...
