'int' is enough for 'length' to migrate code from x86 to x64

[Walter Bright via Digitalmars-d]

On 11/19/2014 8:22 AM, David Gileadi wrote:
> 2. That there's a need for it at all, which requires knowing that length is
> unsigned. I did know this, but I bet in the heat of programming I'd easily
> forget it. In a semi-complex algorithm the bug could easily hide for a long time
> before biting.

If it was signed, you'd just have different issues hiding.