length's type.

[Siarhei Siamashka]

On Wednesday, 14 February 2024 at 00:56:21 UTC, Kevin Bailey 
wrote:
> Personally, I don't have a problem with .length being unsigned. 
> How do you have a negative length? My problem is that the 
> language doesn't correctly compare signed and unsigned.

The length itself is technically the index of a non-existing 
element right after the array. And -1 is technically the index of 
a non-existing element right before the array. Hence just 
mechanically reversing the direction of processing array elements 
during refactoring may be potentially dangerous if one is not 
careful enough.