Should (p - q) be disallowed in @safe code?

[Richard (Rikki) Andrew Cattermole]

On 03/01/2026 3:29 PM, Walter Bright wrote:
>> The CPU does not have a concept of "memory object" or "different 
>> memory objects". It usually does not even distinguish addresses from 
>> other machine-word integers.
> 
> It does with the segmented memory system of the IBM PC, and the banked 
> memory card add-ons. I wrote a software virtual memory system using 
> banked memory and segment registers. You didn't really want to use an 
> offset larger than the memory allocated to that segment!
> 
> But those designs are all obsolete now and irrelevant.

Web assembly is segmented :(