dereferencing null

[Sean Kelly]

Oh alright. Then we're in complete agreement. 

On Mar 6, 2012, at 8:05 PM, Walter Bright <newshound2 at digitalmars.com> wrote:

> 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.