Type Aware GC Questions

[Craig Black]

"Walter Bright" <newshound at digitalmars.com> wrote in message 
news:ephqje$1eje$2 at digitaldaemon.com...
> Craig Black wrote:
>> I was wondering, just how smart is the compiler now?  If I define a class
>> that doesn't have any pointers, then will the compiler know that it 
>> doesn't
>> have pointers?
>
> Yes.
>
>> If I only have one pointer in my class, will the GC only
>> scan that location?
>
> No, it'll scan the whole class. All it has is a bit that says "might have 
> pointers" or "has no pointers".

If I have such a class, is there something I can do to inform the GC not to 
scan a certain portiion of memory?