[OT] The Usual Arithmetic Confusions

[Walter Bright]

On 2/17/2022 9:25 PM, Timon Gehr wrote:
> Except perhaps for somewhat long arrays in a 32-bit program.

Can't have everything.

If you've got an array length longer than int.max, you're going to have trouble 
distinguishing a subtraction from a wraparound addition in any case. Dealing 
with that means one is simply going to have to pay attention to how integer 2-s 
complement arithmetic works on a computer.

Just wait till you get into floating point!