Pointers, casting, SetGetWindowLong problem...

[Bradley Smith]

torhu wrote:
> Bradley Smith wrote:
>> I've started recording "surprises" like these on a Web page here: 
>> http://www.baysmith.com/d/
> 
> That's a good idea, but I see a couple of errors on that page.
> 
> At the bottom: "crashes because null not evaluated as false".  null does 
> evaluate to false.  The reason it crashes is that assert(obj) doesn't 
> check for null, it just calls the class invariant. 
> http://www.digitalmars.com/d/class.html#invariants
> 
> And "Don't use == to compare with null" can be a bit misleading.  If the 
> object has an opEquals defined that takes a reference as an argument, 
> you would actually "use == to compare with null".  Maybe if it said 
> "Don't use == to check if a reference is null".
> 
> But it's a nice initiative nevertheless.  The official docs are a bit 
> unclear on many issues.

Thanks for the feedback. I've updated these points.