dereferencing null

[Walter Bright]

On 3/6/2012 7:08 PM, Sean Kelly wrote:
> Minor point, but some apps are designed such that segfaults are intended. I
> worked on a DB that dynamically mapped memory in the segfault handler and
> then resumed execution.  Since D is a systems languages, very few assumptions
> can be made about error conditions.

Yes, and I've written a GC implementation that relied on intercepting invalid 
page writes to construct its list of 'dirty' pages.

There's nothing in D preventing one from doing that, although for sure such code 
will be very, very system specific.

What I'm talking about is the idea that one can recover from seg faults 
resulting from program bugs.