size_t index=-1;

[tsbockman via Digitalmars-d-learn]

On Saturday, 19 March 2016 at 04:17:42 UTC, Jonathan M Davis 
wrote:
> The only thing that I'm aware of that Walter has thought 
> _might_ be something that we should change is allowing the 
> comparison between signed and unsigned integers, and if you 
> read what he says in the bug report for it, he clearly doesn't 
> think it's a big problem:
>
> https://issues.dlang.org/show_bug.cgi?id=259
>
> And that's something that clearly causes bugs in way that 
> converting between signed and unsigned integers does not. 
> You're fighting for a lost cause on this one.
>
> - Jonathan M Davis

You do realize that, technically, there are no comparisons 
between basic signed and unsigned integers in D? The reason that 
*attempting* such a comparison produces such weird results, is 
because the signed value is being implicitly cast to an unsigned 
type.

The thing you say *is* a problem, is directly caused by the thing 
that you say is *not* a problem.