length's type.

[Kagamin]

On Tuesday, 13 February 2024 at 23:57:12 UTC, Ivan Kazmenko wrote:
> I do use lengths in arithmetic sometimes, and that leads to 
> silent bugs currently.  On the other hand, since going from 16 
> bits to 32 and then 64, in my user-side programs, I had a flat 
> zero bugs because some length was 2^{31} or greater -- but at 
> the same time not 2^{32} or greater.  So, in D, I usually 
> `to!int` or `to!long` them anyway.  Or cast in 
> performance-critical places.

I had a similar bug in C++: the find function returns npos 
sentinel value when not found, it was assigned to uint and then 
didn't match npos on comparison, but it would if they were signed.