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

[Matthias Bentrup via Digitalmars-d]

On Wednesday, 19 November 2014 at 14:04:16 UTC, Don wrote:
> No. The point is to get correct semantics. Unsigned types do 
> not have the correct semantics. Signed types do.
>

In D both signed and unsigned integers have defined wrapping 
semantincs. In C++ signed integers are allowed to format your 
harddisk on overflow.