Better diagnostics for null classes dereferencing

[Per Nordlöw]

On Tuesday, 10 July 2018 at 19:27:07 UTC, Steven Schveighoffer 
wrote:
> On 7/10/18 3:01 PM, Per Nordlöw wrote:
>> Is it possible to change run-time behaviour of null-class 
>> dereferencing, on Linux, so that it gives some other 
>> diagnostics than:
>> 
>> Program exited with code -11
>> 
>> Does DMD and LDC provide different alternatives here?
>
> Yes, call this function on startup:
>
> import etc.linux :  registerMemoryErrorHandler;
>
> void main()
> {
>     registerMemoryErrorHandler();
>     ...
> }
>
> No, it's not documented anywhere. Probably should be...
>
> -Steve

Okay thanks. When would you not want that behavior to be default?